TITAN PHARMACEUTICALS INC
424B3, 1996-12-03
BIOLOGICAL PRODUCTS, (NO DIAGNOSTIC SUBSTANCES)
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PROSPECTUS


                        1,536,000 Shares of Common Stock
                           7,036,900 Class A Warrants
   7,036,900 shares of Common Stock issuable upon exercise of Class A Warrants

                           TITAN PHARMACEUTICALS, INC.

   
     Titan  Pharmaceuticals,  Inc. (the "Company") hereby offers:  (i) 3,625,900
shares of Common  Stock,  $.001 par value (the  "Common  Stock")  issuable  upon
exercise  of  the  redeemable  Class  A  Warrants  (the  "Warrants")  issued  in
connection  with the  Company's  initial  public  offering in January  1996 (the
"IPO");  and (ii)  429,248  shares of Common  Stock  issuable  upon  exercise of
259,123  Warrants  issued in  connection  with a bridge  financing  (the "Bridge
Financing")  completed by the Company  prior to the IPO which were  subsequently
resold.

     This  Prospectus  also  relates  to the  offer and sale by  certain  of the
investors  (the  "Bridge  Investors")  in  the  Bridge  Financing  of  (i) up to
1,445,752  Warrants issued to the Bridge Investors in connection with the Bridge
Financing;  and (ii) the 1,445,752 shares of Common Stock issuable upon exercise
of such Warrants. See "Selling Securityholders."
    

     This  Prospectus  also  relates to the offer and sale by certain  investors
(the  "Private  Placement  Investors")  in a private  placement  by the  Company
completed in August 1996 ("Private Placement") of (i) 1,536,000 units ("Units"),
each Unit consisting of one share of Common Stock and one Warrant;  and (ii) the
1,536,000 shares of Common Stock issuable upon exercise of such Warrants.


     Each Warrant  currently  entitles the registered holder thereof to purchase
one share of Common Stock at $6.20 through  January 18, 2001. The exercise price
of the  Warrants is subject to  adjustment.  Commencing  January 18,  1997,  the
Warrants  are  subject to  redemption  by the  Company at $.05 per Warrant on 30
days' prior written notice if the closing bid price of the Common Stock averages
in excess of $9.10 per share for 30  consecutive  business days ending within 15
days of the date of notice of redemption. See "Description of Securities." As of
November 22, 1996, 54,100 Warrants had been exercised.
 
   
     The Units,  Common  Stock and  Warrants  are traded on The Nasdaq  SmallCap
Market  ("Nasdaq") under the symbols TTNPU,  TTNP, and TTNPW,  respectively.  On
November  29,  1996,  the  closing  bid  prices of the Units,  Common  Stock and
Warrants were $15.75, $10.50 and $5.00, respectively.
    


                                  ------------

    THE SECURITIES OFFERED HEREBY INVOLVE A HIGH DEGREE OF RISK AND IMMEDIATE
          SUBSTANTIAL DILUTION. SEE "RISK FACTORS" BEGINNING ON PAGE 5.

                                  ------------

  THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
  EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE SECURITIES
     AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON
       THE ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO
                       THE CONTRARY IS A CRIMINAL OFFENSE.


     The Company has agreed to pay a solicitation fee (the  "Solicitation  Fee")
equal to 5% of the exercise  price in  connection  with the exercise of Warrants
under certain conditions. See "Plan of Distribution." The exercise prices of the
Warrants  were  determined  by  negotiation  between the Company and D.H.  Blair
Investment  Banking Corp.  ("Blair"),  the underwriter of the Company's IPO, and
are not  necessarily  related to the Company's  asset value,  net worth or other
established criteria of value.


================================================================================
                        Warrant               Warrant           Proceeds to
                    Exercise Price     Solicitation Fee (1)     Company (2)
- --------------------------------------------------------------------------------
Per Warrant.........     $6.20                 $.31                $5.89
- --------------------------------------------------------------------------------
Total (2)...........$43,628,780.00         $2,181,439.00      $41,447,341.00
================================================================================


(1)  Represents  Solicitation  Fees  payable to Blair  pursuant  to the  warrant
     agreements  dated as of January 18,  1996 and July 31, 1996  (collectively,
     the  "Warrant  Agreements")  between  the Company and Blair under which the
     Company agreed to pay Blair a fee of 5% of the aggregate  exercise price of
     each Warrant exercised  solicited by its  representatives if (i) the market
     price of the Common  Stock on the date the Warrant is  exercised is greater
     than the then Warrant exercise price;  (ii) the exercise of the Warrant was
     solicited by a member of the National  Association  of Securities  Dealers,
     Inc. as designated in writing on the Warrant Certificate subscription form;
     (iii) the Warrant is not held in a discretionary  account;  (iv) disclosure
     of compensation  arrangements was made both at the time of the offering and
     at the time of the exercise of the Warrants;  and (v) the  solicitation  of
     exercise  of the  Warrant was not in  violation  of Rule 10b-6  promulgated
     under the Securities Exchange Act of 1934, as amended.


(2)  Assumes the exercise of all outstanding  Warrants and that the Solicitation
     Fee is paid on all Warrants exercised. As of November 22, 1996, only 54,100
     of the Warrants had been  exercised and there can be no assurance  that any
     additional  Warrants  will be  exercised. 


                 The date of this Prospectus is December , 1996


<PAGE>

                              AVAILABLE INFORMATION

     The Company has filed with the  Securities  and  Exchange  Commission  (the
"Commission"),  Washington, D.C. a Registration Statement on Form SB-2 under the
Securities Act of 1933, as amended  ("Act")  covering the securities  offered by
this  Prospectus.  This  Prospectus  does not contain all of the information set
forth  in the  Registration  Statement  and  the  exhibits  thereto.  Statements
contained  in this  Prospectus  as to the  contents  of any  contract  or  other
document  referred to are not  necessarily  complete and in each  instance  such
statement  is qualified  by  reference  to each such  contract or document.  The
Company is subject to the informational  requirements of the Securities Exchange
Act of 1934, as amended  ("Exchange  Act"),  and in accordance  therewith  files
reports and other information with the Commission. Reports and other information
filed by the Company with the Commission can be inspected and copies obtained at
the public  reference  facilities  maintained by the Commission at the following
addresses:  New York Regional  Office,  Seven World Trade Center,  New York, New
York 10048; and Chicago Regional Office,  Northwestern  Atrium Center,  500 West
Madison Street,  Chicago,  Illinois  60661-2511.  Copies of such material can be
obtained  from the  Public  Reference  Section  of the  Commission  at 450 Fifth
Street, N.W., Washington, D.C. 20549 at prescribed rates.


<PAGE>

- --------------------------------------------------------------------------------

                               PROSPECTUS SUMMARY

     The  following  summary is qualified  in its entirety by reference  to, and
should be read in conjunction with, the more detailed  information and financial
statements (including the notes thereto) appearing elsewhere in this Prospectus.
Except as otherwise  noted,  all  information in this  Prospectus (i) reflects a
0.461308687-for-one  reverse  stock  split  effected  in  February  1995  and  a
0.36977472-for-one  reverse stock split  effected in November  1995;  (ii) gives
effect to the  conversion of  outstanding  preferred  stock into Common Stock in
January 1996,  (iii) assumes no exercise of (a) the Warrants;  (b) unit purchase
options  (collectively,  the "Unit Purchase  Options") issued in connection with
the IPO and the Private  Placement;  (c) options  granted or available for grant
under the Company's  stock option plans;  or (d) other  outstanding  options and
warrants.  See  "Capitalization,"  "Management -- Stock Option Plans,"  "Certain
Transactions" and "Description of Securities."


     The following discussion contains  forward-looking  statements,  within the
meaning of the "safe  harbor"  provisions of the Private  Securities  Litigation
Reform  Act of  1995,  the  attainment  of  which  involves  various  risks  and
uncertainties.  Forward-looking  statements  may be  identified  by  the  use of
forward-looking  terminology,   such  as  "may,"  "will,"  "expect,"  "believe,"
"estimate,"  "anticipate,"  "continue,"  or similar  terms,  variations of those
terms or the negative of those terms.  The Company's  actual  results may differ
materially  from those  described in these  forward-looking  statements  due to,
among other factors, the results of ongoing research and development  activities
and preclinical testing and those discussed under "Risk Factors."


                                   The Company


     The Company is a  biopharmaceutical  company engaged in the  identification
and acquisition of synergistic  technologies,  with applications in the areas of
cancer,  disorders of the central  nervous  system,  and other life  threatening
diseases for further  research and  development by various  subsidiaries  of the
Company.  The Company's operations are currently conducted through five entities
(the "Operating  Companies") Ansan  Pharmaceuticals,  Inc. ("Ansan"),  a company
engaged in the development of small molecule-based therapeutics intended for the
treatment  of  cancer  and  other  life  threatening  diseases;   Ingenex,  Inc.
("Ingenex"),  a company  engaged in the  development of  proprietary  gene-based
therapies and the application of functional genetics to pharmaceutical discovery
initially  for the  treatment of cancer and certain  viral  diseases;  ProNeura,
Inc.,  ("ProNeura"),  a company engaged in research and  development  activities
relating to a polymeric  implantable drug delivery technology;  Theracell,  Inc.
("Theracell"),  a company engaged in the development of cell-based  therapeutics
intended  for the  restorative  treatment of  neurological  diseases and central
nervous system disorders; and Trilex Pharmaceuticals, Inc. ("Trilex"), a company
engaged in research and  development of therapeutic  cancer  vaccines  utilizing
anti-idiotypic antibody technology.


     Ansan completed an initial public offering of its securities in August 1995
which  reduced the Company's  ownership to 44% resulting in its  deconsolidation
for  financial  reporting  purposes.  The other  Operating  Companies  remain as
consolidated subsidiaries.

     References  to the  Company  include  the  Operating  Companies  unless the
context requires otherwise. The Company was incorporated in Delaware in February
1992.  The  Company's  executive  offices are located at 400 Oyster Point Blvd.,
Suite 505, South San  Francisco,  California  94080 and its telephone  number is
(415) 244-4990.

                                  The Offering
<TABLE>
<S>                                            <C>                                                                     
   
Securities Offered..........................   4,055,148 shares issuable upon exercise of Warrants. See "Description of
                                               Securities."
    
Securities Offered Concurrently by
  Selling Securityholders...................   1,536,000  Units,  each Unit consisting of one share of Common Stock and
                                               one Warrant.  See "Selling  Securityholders."
                                               1,615,877  Warrants.  See "Selling Securityholders."
Common Stock Outstanding Before Offering....   12,361,918 shares
Common Stock Outstanding After Offering.....   19,398,818 shares(1)
Nasdaq Symbols
    Units...................................   TTNPU
    Common Stock ...........................   TTNP
    Class A Warrants .......................   TTNPW
Risk Factors................................   Investment in the securities  offered  hereby  involves a high degree of
                                               risk and immediate  substantial  dilution.  See "Risk Factors." 
</TABLE>
- --------
(1) Assumes the exercise of all outstanding Warrants.


- --------------------------------------------------------------------------------


                                       3
<PAGE>

- --------------------------------------------------------------------------------

                          Summary Financial Information
<TABLE>
<CAPTION>

                                                                                                                  Period from
                                                                                                                 July 25, 1991
                                                                                                                (commencement
                                                                           Nine  Months Ended September 30,     of operations)
                                                      Year Ended           --------------------------------         through
                                                   December 31, 1995             1995              1996        September 30, 1996
                                                   -----------------       --------------    --------------    -------------------
<S>                                                   <C>                   <C>               <C>                  <C>          


Statement of Operations Data:
Grant revenue ....................................    $     139,522         $      99,786     $     133,061        $     272,583
Research and development expenses ................        5,201,507             4,402,178         4,023,836           26,037,457
Acquired in-process research and
  development expenses ...........................          686,000                  --                --                686,000
General and administrative expenses ..............        3,657,900             3,536,075         2,882,715            9,447,097
Equity in loss of Ansan ..........................         (457,114)             (233,768)         (699,837)          (1,156,951)
Interest income ..................................           67,868                45,890           518,568              973,326
Interest expense .................................       (1,899,148)             (827,001)       (1,943,346)          (4,095,684)
Net loss .........................................    $ (11,693,454)        $  (8,853,346)    $  (8,888,174)       $ (40,132,430)
Pro forma net loss per share .....................    $       (1.54)        $       (1.18)
Shares used in computing pro forma
  net loss per share(1) ..........................        7,617,470             7,524,168                                      
Net loss per share ...............................                                            $       (1.37)                   
Shares used in computing net
  loss per share (1) .............................                                               10,463,149                    

<CAPTION>
                                                                                                   At September 30, 1996
                                                                                           --------------------------------------
                                                                                              Actual               As Adjusted(2)
                                                                                           -----------               ------------
<S>                                                                                          <C>                       <C>        
Balance Sheet Data:
Working capital                                                                              $15,695,978               $57,143,319
Total assets                                                                                  19,685,782                61,133,123
Total current liabilities                                                                      1,882,033                 1,882,033
Long-term liabilities                                                                          1,421,097                 1,421,097
Deficit accumulated during development stage                                                 (40,132,430)              (40,132,430)
Total stockholders' equity                                                                   $15,141,620               $56,588,961


</TABLE>

- --------
(1)   See Note 1 of Notes to Consolidated Financial Statements.

(2)  Assumes  the  exercise  of all  outstanding  Warrants,  net of the  warrant
     solicitation fee.

- --------------------------------------------------------------------------------


                                       4

<PAGE>


                                  RISK FACTORS

     The securities  offered hereby are  speculative in nature and an investment
in the Units offered  hereby  involves a high degree of risk. In addition to the
other  information  contained in this Prospectus,  prospective  investors should
carefully  consider the following risk factors in evaluating whether to purchase
the Units offered hereby.


     History of Operating Losses; Need for Additional Financing. The Company has
experienced substantial operating losses since its inception in July 1991. As of
September 30, 1996, the Company's  accumulated deficit was $(40,132,430),  which
amount has  increased  significantly  since such date.  The Company  anticipates
incurring  substantial  and  increasing  operating  losses over the next several
years.  Such  losses  have been  principally  the  result of the  various  costs
associated with research and development activities of Ansan, Ingenex, Theracell
and a former  operating  subsidiary,  and the Company's  provision of financial,
administrative,  regulatory and management services to the Operating  Companies.
The Company  believes that available funds will enable it to fund its operations
for  approximately  18 months.  The Company will be required to seek substantial
additional  financing  to  continue  its  activities  beyond  such  date  and to
commercialize  any  products  that  the  Operating  Companies  may  successfully
develop.  The Company has no bank lines of credit and there can be no  assurance
that the  Company  will be able to obtain any  needed  additional  financing  on
commercially  reasonable  terms in the event the Warrants  are not  exercised in
substantial numbers. If the Company is unable to obtain the necessary financing,
it  will be  required  to  significantly  curtail  its  activities  or to  cease
operations. See "Management's Discussion and Analysis of Financial Condition and
Results of Operations" and "Business -- Strategy."


     Development  Stage of Company.  The Company has conducted  limited research
and development activities through the Operating Companies and has not generated
any revenues to date from operations. Accordingly, the Company must be evaluated
in light of the expenses,  delays,  uncertainties  and  complications  typically
encountered by newly established biopharmaceutical businesses, many of which may
be  beyond  the  Company's  control.  These  include,  but are not  limited  to,
unanticipated  problems  relating to product  development,  testing,  regulatory
compliance,  manufacturing,  marketing and competition, and additional costs and
expenses that may exceed current  estimates.  There can be no assurance that the
Company  or  any  of the  Operating  Companies  will  successfully  develop  and
commercialize  any  products,  generate any revenues or ever achieve  profitable
operations. See "Business."

     Early Stage of Development of Proposed Products.  The Operating  Companies'
proposed  products  are at an  early  stage  of  development  and  will  require
significant  further research,  development,  testing and regulatory  clearances
prior to commercialization. There can be no assurance that any proposed products
will be  successfully  developed,  prove  to be safe  and  efficacious,  receive
requisite regulatory approvals,  demonstrate substantial therapeutic benefits in
the  treatment  of any  disease or  condition,  be capable of being  produced in
commercial  quantities  at reasonable  costs or be  successfully  marketed.  See
"Business."

     Government  Regulation.  The research,  preclinical  development,  clinical
trials,  product  manufacturing  and  marketing to be conducted by the Operating
Companies are subject to regulation by the FDA and similar health authorities in
foreign countries. FDA approval of the Operating Companies' products, as well as
the  manufacturing  processes  and  facilities,  if any,  used to  produce  such
products,  will be required  before such products may be  commercialized  in the
United States. The process of obtaining  approvals from the FDA is costly,  time
consuming and often subject to unanticipated  delays.  There can be no assurance
that approvals of any of the proposed products,  processes or facilities will be
granted on a timely basis,  if at all.  Even if regulatory  approval is granted,
such approval may include  significant  limitations  on indicated uses for which
any such products could be marketed.  Further, even if such regulatory approvals
are  obtained,  a marketed  drug and its  manufacturer  are subject to continued
review,  and later  discovery  of  previously  unknown  problems  may  result in
restrictions  on such  product  or  manufacturer,  including  withdrawal  of the
product from the market.  New  government  regulations  in the United  States or
foreign countries also may be established that could delay or prevent regulatory
approval of the Operating Companies products under development. Further, because
gene therapy is a relatively new technology and has not been extensively  tested
in humans,  the  regulatory  requirements  governing  gene therapy  products are
uncertain and may be subject to substantial further review by various regulatory
authorities  in the United  States and abroad.  This  uncertainty  may result in
extensive  delays in initiating  clinical trials and in the regulatory  approval
process for Ingenex.  Regulatory  requirements  ultimately  imposed could have a
material  adverse  effect upon the  business  of Ingenex  and,  ultimately,  the
Company.  Failure by the Operating  Companies to obtain  regulatory  approval of
their proposed  products,  processes or facilities could have a material adverse
effect on the  business,  financial  condition  and results of operations of the
Company.  The proposed products under development may also be subject to certain

                                       5
<PAGE>

other  federal,  state  and local  government  regulations,  including,  but not
limited  to,  the  Federal  Food,  Drug  and  Cosmetic  Act,  the  Environmental
Protection  Act, the  Occupational  Safety and Health Act, and state,  local and
foreign  counterparts  to certain  of such acts.  See  "Business  --  Government
Regulation."

     Reliance on Patents and Other  Proprietary  Rights.  The Company's  success
will depend, in part, on its ability, and the ability of the Operating Companies
and their licensor(s),  to obtain protection for their products and technologies
under United States and foreign  patent laws, to preserve  their trade  secrets,
and to operate without infringing the proprietary  rights of third parties.  The
Operating   Companies  have  obtained  rights  to  certain  patents  and  patent
applications  and  may,  in the  future,  seek  rights  from  third  parties  to
additional  patents  and patent  applications.  There can be no  assurance  that
patent applications  relating to the Operating  Companies' potential products or
technologies,  including  those licensed from others,  or that it may license in
the future,  will result in patents being issued,  that any issued  patents will
afford  adequate  protection or not be challenged,  invalidated,  infringed,  or
circumvented,  or that any rights  granted  thereunder  will afford  competitive
advantages to the Company.  Furthermore,  there can be no assurance  that others
have not independently  developed,  or will not independently  develop,  similar
products and/or technologies, duplicate any of the Operating Companies' products
or  technologies,  or, if patents  are issued to, or licensed  by, the  Company,
design around such patents.

     There can be no assurance that the validity of any of the patents  licensed
to the Operating Companies would be upheld if challenged by others in litigation
or that the Company's activities would not infringe patents owned by others. The
Company could incur  substantial  costs in defending itself and/or the Operating
Companies in suits brought against them or any of their  licensors,  or in suits
in which the Company may assert,  against  others,  patents in which the Company
and/or the Operating  Companies  have rights.  Should the  Operating  Companies'
products or technologies  be found to infringe  patents issued to third parties,
the  manufacture,  use,  and sale of such  products  could be  enjoined  and the
Company  and/or the  Operating  Companies  could be required to pay  substantial
damages. In addition, the Company and/or the Operating Companies may be required
to obtain licenses to patents or other proprietary  rights of third parties,  in
connection with the development and use of their products and  technologies.  No
assurance  can be given that any  licenses  required  under any such  patents or
proprietary rights would be made available on acceptable terms, if at all.

     The  Company and the  Operating  Companies  also rely on trade  secrets and
proprietary  know-how,  which they seek to protect,  in part, by confidentiality
agreements with employees,  consultants,  advisors,  and others. There can be no
assurance that such employees,  consultants,  advisors, or others, will maintain
the  confidentiality of such trade secrets or proprietary  information,  or that
the trade  secrets or  proprietary  know-how of the  Company  and the  Operating
Companies  will not  otherwise  become  known or be  independently  developed by
competitors  in such a manner that the Company and the Operating  Companies will
have no practical recourse.

     The Company is aware of the  existence  of prior art  references  which may
affect the validity of certain claims in the Nudelman  patent  licensed by Ansan
which broadly cover AN 10, among other  compounds.  Reexamination of this patent
by the U.S. Patent and Trademark Office ("PTO"),  in light of these  references,
may be necessary to obtain valid claims which are both free of the prior art and
which  specifically cover AN 10. In the course of preparing for reexamination or
otherwise, additional prior art may be uncovered which might affect the validity
of such  proposed  narrow  claims.  Such art  would  need to be  brought  to the
attention of the PTO in connection with any reexamination.  Moreover,  there can
be no  assurance  that the PTO will  grant a request  for  reexamination,  or if
granted,  that such  reexamination  will  result in the  issuance of the desired
claims.  In any event,  given that the  already-uncovered  prior art  references
relate to  compounds  but not to methods of  treatment,  the  existence  of such
references  would not, as a matter of United  States  patent law, be expected to
affect the  patentability  of any claims  directed  to the use of AN 10 to treat
fetal hemoglobinopathies which presently are pending in the application licensed
by Ansan.

     The Company  also is aware of certain  issued  United  States  patents (the
"Perrine  patents")  which appear to cover the  administration  of butyric acid,
during gestation or infancy, to ameliorate  (beta)-globin  disorders,  including
sickle  cell anemia and  (beta)-thalassemia,  by  increasing  the level of fetal
hemoglobin.  To the extent that AN 10 converts to butyric  acid and in the event
Ansan's commercial  activities include  administration of AN 10 during gestation
and/or infancy, such activities could give rise to issues of infringement of the
Perrine patents.

     The  Company  is  aware  of an  issued  United  States  patent  (as well as
corresponding  patents and patent applications in foreign countries) relating to
multidrug  resistance in mammalian cells.  This patent claims  substantially the
same subject  matter as is claimed by certain  issued United States patents that
have been licensed by Ingenex. The



                                       6
<PAGE>

Company is also aware of an issued  United  States  patent,  relating to ex vivo
gene therapy.  The Company  believes that this patent claims subject matter that
relates to any gene  therapeutic  developed  by  Ingenex to the extent  that the
introduction of the gene into the subject's cells is performed ex vivo. Thus, it
may be  necessary  for Ingenex to obtain a license  under either or both of such
patents  to pursue  commercialization  of its  proposed  gene  therapy  products
utilizing the MDR1 gene or ex vivo  therapies,  as  applicable.  There can be no
assurance  that  Ingenex  will be able to  obtain  such  licenses  or that  such
licenses, if available,  can be obtained on terms acceptable to Ingenex. Failure
of Ingenex to obtain such licenses  could have a material  adverse effect on the
business,  financial  condition  and  results of  operations  of Ingenex and the
Company. Ingenex has received notice that three companies are opposing the grant
of a European  patent which has claims  directed to the human MDR1 gene and gene
fragments.

     Competition and Technological Change. Competition in the pharmaceutical and
biotechnology  industries  is intense and is expected to  increase.  The Company
will face  competition  from numerous  companies that currently  market,  or are
developing, products for the treatment of diseases and disorders targeted by the
Operating Companies.  Many of these entities have significantly greater research
and development  capabilities,  experience in obtaining regulatory approvals and
manufacturing, marketing, financial and managerial resources than the Company or
its  Operating   Companies.   Acquisitions   of  or   investments  in  competing
biotechnology  companies by large  pharmaceuticals  companies could enhance such
competitors' financial, marketing and other resources. The Company also competes
with  universities  and  other  research  institutions  in  the  development  of
products, technologies and processes. There can be no assurance that competitors
of the Company will not succeed in developing  technologies or products that are
more  effective  than those of the  Operating  Companies or that will render the
Operating  Companies'  products or technologies  noncompetitive or obsolete.  In
addition,  certain of such competitors may achieve product  commercialization or
patent  protection   earlier  than  the  Operating   Companies.   See  "Business
Competition."

     Dependence Upon Key  Collaborative  Relationships and License and Sponsored
Research Agreements.  The Company relies significantly on the resources of third
parties to conduct research and development.  The Company's success will depend,
in part, on its ability and the ability of the  Operating  Companies to maintain
existing   collaborative   relationships   and  to  develop  new   collaborative
relationships  with third  parties.  There can be no assurance  that the Company
will be successful in maintaining its existing collaborative arrangements,  that
any collaborative arrangements will lead to the successful  commercialization of
products or that such  collaborative  arrangements will continue to be available
to the Company or the Operating Companies.


     The license  agreements that have been or may in the future be entered into
by the Operating  Companies typically require the payment of an up-front license
fee and royalties  based on sales of licensed  products and processes  under the
license  and  any  sublicense  with  minimum  annual  royalties,  the use of due
diligence in developing  and bringing  products to market,  the  achievement  of
funding  milestones and, in some cases, the grant of stock to the licensor.  The
sponsored  research  agreements  that have been or may in the  future be entered
into by the Operating Companies generally require periodic payments on an annual
or quarterly  basis.  Some  agreements  also may require  funding or  production
facilities  relating to clinical  research.  If the Operating  Companies fail to
meet their financial or other obligations under either their license  agreements
or their sponsored  research  agreements in a timely manner, the rights to their
proprietary  technology  or the  right  to have  the  applicable  university  or
institution  conduct  research and development  efforts could be lost.  Further,
Ingenex has assigned its rights under four of its principal licenses to a lender
and has sublicensed  back such rights in exchange for monthly  license  payments
aggregating  $1,419,594  at September 30, 1996.  There can be no assurance  that
Ingenex will have sufficient funds to meet its payment obligations and reacquire
its rights to these  licenses.  See "Business -- Sponsored  Research and License
Agreements."


     Dependence on Third Parties for Manufacturing and Marketing Activities.  To
date, the Operating Companies have not introduced any products on the commercial
market.  To  conduct  human  clinical  trials  and  ultimately  to  gain  market
acceptance,  the products under  development  must be manufactured in compliance
with regulatory  requirements  and at acceptable  costs. It is not expected that
the Company or any of the  Operating  Companies  will have the  resources in the
foreseeable  future to allocate to the manufacture or direct  marketing of their
proposed products and, therefore, it is intended that collaborative arrangements
be pursued  regarding the  manufacture and marketing of any products that may be
successfully  developed.  The future success of the Company may depend, in part,
on the  ability  of the  Operating  Companies  to enter into and  maintain  such
collaborative  relationships,  the  collaborator's  strategic  interest  in  the
products under  development,  and their ability to  successfully  manufacture or
market any such  products.  To the extent  that any of the  Operating  Companies
decide not to, or are



                                       7
<PAGE>

unable to, enter into collaborative arrangements with respect to the manufacture
or marketing  of their  proposed  products,  significant  capital  expenditures,
management  resources  and time will be  required to  establish a  manufacturing
facility  or  develop  a  sales  force.  There  can  also be no  assurance  that
collaborative  arrangements to manufacture or market any proposed  products will
be entered into or, in lieu thereof,  that any  manufacturing  operations can be
successfully   established   or  that  any  sales  force  can  be   successfully
implemented.   See   "Business  --  Sales  and   Marketing"   and  "Business  --
Manufacturing and Supplies."

     Dependence  on Key  Personnel.  The  Company  is  highly  dependent  on the
services of Dr. Louis R. Bucalo,  President and Chief Executive Officer, as well
as the other principal members of management and scientific staff of the Company
and the Operating  Companies.  The loss of one or more of such individuals could
substantially  impair ongoing research and development  programs and the ability
of the Company and/or the Operating  Companies to obtain  additional  financing.
The future  success of the  Company  depends in large part upon its  ability and
that  of  the  Operating  Companies  to  attract  and  retain  highly  qualified
personnel.  The Company and the Operating Companies face intense competition for
such highly  qualified  personnel from other  pharmaceutical  and  biotechnology
companies, as well as universities and nonprofit research organizations, and may
have to pay higher salaries to attract and retain such  personnel.  There can be
no assurance that sufficient  qualified personnel can be hired on a timely basis
or retained. The loss of such key personnel or failure to recruit additional key
personnel  could  have a  material  adverse  effect  on the  Company's  and  the
Operating  Companies'  business,  financial condition and results of operations.
See "Management."

     Risk of Product Liability. In the event that any products under development
by the Operating Companies are successfully developed,  the Company will face an
inherent  business  risk of  financial  exposure  to  product  liability  claims
alleging that the use of such products  produced  adverse  effects.  The Company
does not presently carry product  liability  insurance,  but the Company expects
that it and/or the applicable Operating Company will obtain such insurance prior
to the commercial  distribution  or sale of any products or processes.  However,
there can be no assurance  that  adequate  product  liability  insurance  can be
obtained at  acceptable  costs.  In the event of an  uninsured  or  inadequately
insured product liability claim, the Company's business and financial  condition
could be materially adversely affected. See "Business."

     Potential  Adverse Effects of Preferred  Stock.  The Company's  Amended and
Restated  Certificate  of  Incorporation  authorizes  the  issuance of shares of
5,000,000  "blank check"  preferred  stock,  which will have such  designations,
rights and  preferences  as may be determined  from time to time by the Board of
Directors.  Accordingly,  the  Board of  Directors  will be  empowered,  without
stockholder   approval   (but  subject  to  applicable   government   regulatory
restrictions), to issue preferred stock with dividend, liquidation,  conversion,
voting or other  rights which could  adversely  affect the voting power or other
rights of the holders of the Common Stock.  In the event of such  issuance,  the
preferred stock could be utilized,  under certain circumstances,  as a method of
discouraging,  delaying  or  preventing  a change  in  control  of the  Company.
Although  the Company has no present  intention to issue any shares of preferred
stock,  there can be no assurance that the Company will not do so in the future.
See "Description of Securities Preferred Stock."

     No  Dividends.  The Company has not paid any cash  dividends  on its Common
Stock and does not expect to declare or pay any cash or other  dividends  in the
foreseeable future. See "Dividend Policy."


     Shares  Eligible for Future Sale.  Future sales of Common Stock by existing
stockholders  pursuant  to Rule 144 under the  Securities  Act,  pursuant  to an
effective   registration   statement  declared  effective  in  January  1996  or
otherwise,  could  have  an  adverse  effect  on  the  price  of  the  Company's
securities.  Warrants  to  purchase  1,875,000  shares of  Common  Stock and the
underlying  shares  were  registered  for  resale  concurrently  with  the  IPO.
Approximately  6,800,000 shares of Common Stock and additional  shares of Common
Stock  underlying  vested options issued  pursuant to the Company's stock option
plans  are  eligible  for  resale  pursuant  to Rules 144  and/or  701 under the
Securities Act. However,  holders of approximately 95% of the outstanding shares
of Common Stock and outstanding options prior to the IPO have agreed not to sell
any shares of Common Stock until February 1997 without the prior written consent
of Blair. Sales of Common Stock, or the possibility of such sales, in the public
market may adversely affect the market price of the Company's securities.


     Exercise of Registration  Rights. The holders of the Unit Purchase Options,
warrants to purchase  556,534  shares of Common  Stock and  5,521,140  shares of
Common Stock have certain demand and "piggy-back" registration



                                       8
<PAGE>

rights with respect to their  securities  commencing  January 1997.  Exercise of
such rights could involve substantial expense to the Company.

     Potential Adverse Effect of Redemption of Warrants.  Commencing January 18,
1997, the Warrants may be redeemed by the Company at a redemption  price of $.05
per Warrant upon not less than 30 days' prior written  notice if the closing bid
price of the Common  Stock shall have  averaged in excess of $9.10 per share for
30 consecutive  trading days ending within 15 days of the notice.  Redemption of
the  Warrants  could force the holders (i) to exercise  the Warrants and pay the
exercise price therefor at a time when it may be disadvantageous for the holders
to do so, (ii) to sell the Warrants at the then  current  market price when they
might  otherwise  wish to hold the  Warrants,  or (iii) to  accept  the  nominal
redemption  price which, at the time the Warrants are called for redemption,  is
likely to be  substantially  less than the  market  value of the  Warrants.  See
"Description of Securities Redeemable Warrants."


     Current Prospectus and State Registration to Exercise Warrants.  Holders of
Warrants will be able to exercise the Warrants only if (i) a current  prospectus
under the Securities  Act relating to the shares of Common Stock  underlying the
Warrants is then in effect and (ii) such  securities  are  qualified for sale or
exempt from qualification under the applicable  securities laws of the states in
which  the  various  holders  of  Warrants  reside.  Although  the  Company  has
undertaken and intends to use its best efforts to maintain a current  prospectus
covering the shares  underlying  the Warrants to the extent  required by Federal
securities  laws,  there can be no assurance that the Company will be able to do
so. The value of the  Warrants may be greatly  reduced if a prospectus  covering
the shares  issuable upon the exercise of the Warrants is not kept current or if
the securities are not qualified, or exempt from qualification, in the states in
which the holders of Warrants  reside.  Persons  holding  Warrants who reside in
jurisdictions  in which such  securities are not qualified and in which there is
no exemption  will be unable to exercise their Warrants and would either have to
sell their Warrants in the open market or allow them to expire  unexercised.  If
and when the Warrants  become  redeemable by the terms thereof,  the Company may
exercise  its  redemption  right even if it is unable to qualify the  underlying
securities for sale under all applicable state securities laws. See "Description
of Securities -- Redeemable Warrants."


     Possible Restrictions on Market-Making  Activities in Company's Securities.
D.H.  Blair  & Co.,  Inc.  ("Blair  &  Co.")  makes a  market  in the  Company's
securities.  Rule  10b-6  under the  Securities  Act of 1934,  as  amended  (the
"Exchange  Act"),  may prohibit  Blair & Co. from engaging in any  market-making
activities  with  regard to the  Company's  securities  for the period from nine
business days (or such other applicable  period as Rule 10b-6 may provide) prior
to any  solicitation by Blair of the exercise of Warrants until the later of the
termination  of such  solicitation  activity  or the  termination  (by waiver or
otherwise) of any right that Blair may have to receive a fee for the exercise of
Warrants following such solicitation.  As a result, Blair & Co. may be unable to
provide a market for the Company's  securities  during certain periods while the
Warrants are  exercisable.  In addition,  under applicable rules and regulations
under the Exchange Act, any person  engaged in the  distribution  of the Selling
Securityholder   Securities  may  not  simultaneously  engage  in  market-making
activities  with  respect to any  securities  of the Company for the  applicable
"cooling off" period (at least two and possibly nine business days) prior to the
commencement of such  distribution.  Accordingly,  in the event Blair or Blair &
Co. is engaged  in a  distribution  of the  Selling  Securityholder  securities,
neither of such firms will be able to make a market in the Company's  securities
during the  applicable  restrictive  period.  Any  temporary  cessation  of such
market-making activities could have an adverse effect on the market price of the
Company's securities. See "Plan of Distribution."


     Possible  Delisting of Securities from the Nasdaq Stock Market.  The Nasdaq
Stock Market has recently  proposed more stringent  financial  requirements  for
listing on Nasdaq.  If adopted,  the Company will have to meet and maintain such
new requirements for continued  inclusion on Nasdaq.  If it is unable to satisfy
these new requirements, the Company's securities may be delisted from Nasdaq. In
such event,  trading,  if any, in the Units,  Common  Stock and  Warrants  would
thereafter be conducted in the  over-the-counter  markets in the so-called "pink
sheets" or the NASD's "Electronic Bulletin Board."  Consequently,  the liquidity
of the  Company's  securities  could  be  impaired,  not only in the  number  of
securities which could be bought and sold, but also through delays in the timing
of the transactions,  reductions in the number and quality of security analysts'
and the news media's coverage of the Company, and lower prices for the Company's
securities than might otherwise be attained.



                                       9
<PAGE>


                                 USE OF PROCEEDS


     At November 22, 1996, only 54,100  Warrants had been exercised.  Holders of
Warrants  are not  obligated  to  exercise  their  Warrants  and there can be no
assurance  that  such  holders  will  choose  to  exercise  all or any of  their
Warrants.  In the event that all of the remaining 7,036,900 outstanding Warrants
are  exercised,  the net  proceeds to the Company  would be  $41,447,341,  after
deducting the Solicitation Fee and excluding other expenses of the offering.


     The Company  intends to use the net proceeds  received upon exercise of the
Warrants,  if  any,  for  research  and  development,   product  and  technology
acquisitions and for general corporate purposes.

     Prior to  expenditure,  the net proceeds  from the exercise of the Warrants
will be invested in highly-liquid  interest  bearing  securities or money market
funds.


                                 DIVIDEND POLICY

     The Company has never paid cash  dividends on its Common Stock and does not
anticipate  paying  cash  dividends  in  the  foreseeable  future.  The  Company
currently  intends to retain all  earnings,  if any, for use in the expansion of
the Company's business. The declaration and payment of future dividends, if any,
will be at the sole  discretion  of the Board of Directors  and will depend upon
the Company's  profitability,  financial  condition,  cash requirements,  future
prospects and other factors deemed relevant by the Board of Directors.


                           PRICE RANGE OF COMMON STOCK


     The Company's  securities  have traded on the Nasdaq  SmallCap Market since
its IPO on  January  18,  1996.  The  following  sets forth the high and low bid
prices of the Company's Common Stock for the periods indicated.  Such quotations
reflect inter-dealer prices, without retail mark-up, mark-down or commission and
may not represent actual transactions.

                   Fiscal 1996                          High            Low
                   -----------                       ---------       ----------
First Quarter (from Jan. 18) ...................     $    7.75       $    3.00
Second Quarter .................................         12.00            7.125
Third Quarter ..................................         11.75            9.125

     At November 22, 1996, there were approximately 475 holders of record of the
Company's Common Stock.




                                       10
<PAGE>

                                 CAPITALIZATION


     The  following  table sets forth the  capitalization  of the  Company as of
September 30, 1996. This table should be read in conjunction  with the Financial
Statements and the Notes thereto included elsewhere in this Prospectus.

<TABLE>
<CAPTION>

                                                                   September 30, 1996
                                                                   -------------------
<S>                                                                  <C>         
Long-term debt and capital lease obligations, including
  current portion ................................................   $  2,226,805
                                                                     ------------
Stockholders' equity:
    Preferred Stock, $.001 par value; 5,000,000 shares authorized;
    no shares issued and outstanding .............................           --
    Common Stock, $.001 par value; 30,000,000 shares authorized;
    12,323,279 shares issued and outstanding(1) ..................     49,439,697
    Additional paid-in capital ...................................      6,186,353
    Deferred compensation ........................................       (352,000)
    Deficit accumulated during development stage .................    (40,132,430)
                                                                     ------------
              Total stockholders' equity .........................     15,141,620
                                                                     ------------
                          Total capitalization ...................   $ 17,368,425
                                                                     ============
</TABLE>


- --------
(1)   Excludes  at November  22,  1996,  (i)  7,036,900  shares of Common  Stock
      issuable upon exercise of outstanding  Warrants;  (ii) 1,254,400 shares of
      Common Stock  issuable upon exercise of the Unit Purchase  Options and the
      Warrants included in such options;  (iii) 1,397,309 shares of Common Stock
      issuable upon exercise of outstanding  options granted under the Company's
      1993 and 1995 Stock Option Plans; (iv) 224,362 additional shares of Common
      Stock  reserved for issuance  under the Company's  1995 Stock Option Plan;
      and (v) 668,917  shares of Common Stock  issuable  upon  exercise of other
      outstanding options and warrants.  See  "Management--Stock  Option Plans,"
      "Certain  Transactions,"  "Description  of  Capital  Stock"  and  "Selling
      Securityholders."


Private Placement

     In August 1996, the Company completed the Private Placement of an aggregate
of  1,536,000  Units for gross  proceeds of  $16,000,000.  The Company  paid the
placement  agent  a  commission  of  $1,600,000  and a  non-accountable  expense
allowance of $480,000 in connection  with the Private  Placement and granted the
placement agent a unit purchase option to purchase  307,200 Units at an exercise
price of $10.42 per Unit. The Private Placement  Securities have been registered
for resale  hereby,  subject to the  contractual  restriction  that the  Private
Placement  Investors  have  agreed  not to sell  their  Units or the  components
thereof except after specified periods. See "Selling Securityholders."



                                       11
<PAGE>

                             SELECTED FINANCIAL DATA


     The following table sets forth selected financial data of the Company.  The
selected financial data in the table at and for the year ended December 31, 1995
is derived from the consolidated  financial statements of the Company which have
been audited by Ernst & Young LLP, independent  auditors.  The financial data at
September  30, 1996,  for the nine months ended  September 30, 1995 and 1996 and
for the period from July 25, 1991 (commencement of operations) through September
30,  1996  are  derived  from  unaudited  financial  statements.  The  unaudited
financial  statements  include all  adjustments,  consisting of normal recurring
accruals,  which the Company considers  necessary for a fair presentation of the
financial  position  and the  results of  operations  at that date and for those
periods.  Operating results for the nine months ended September 30, 1996 are not
necessarily indicative of the results that may be expected for the entire fiscal
year ending  December 31,  1996.  The  selected  financial  data set forth below
should be read in conjunction  with the  Consolidated  Financial  Statements and
Notes  thereto and with  "Management's  Discussion  and  Analysis  of  Financial
Condition and Results of Operations" included elsewhere herein.


<TABLE>
<CAPTION>
                                                                                                                       Period from
                                                                                                                      July 25, 1991
                                                                                                                      (commencement
                                                                           Nine Months Ended September  30,           of operations)
                                                            Year Ended           --------------------------------        through
                                                         December 31, 1995         1995                1996           Sept. 30, 1996
                                                         -----------------     ------------        ------------       -------------
<S>                                                        <C>                 <C>                 <C>                 <C>         
Statement of Operations Data:
Grant revenue ......................................       $    139,522        $     99,786        $    133,061        $    272,583
Research and development expenses ..................          5,201,507           4,402,178           4,023,836          26,037,457
Acquired in-process research and
  development expenses .............................            686,000                --                  --               686,000
General and administrative expenses ................          3,657,900           3,536,075           2,882,715           9,447,097
Equity in loss of Ansan ............................           (457,114)           (233,768)           (699,837)         (1,156,951)
Interest income ....................................             67,868              45,890             518,568             973,326
Interest expense ...................................         (1,899,148)           (827,001)         (1,943,346)         (4,095,684)
Minority interest in losses
  of subsidiaries ..................................                825                --                 9,931              44,850
                                                           ------------        ------------        ------------        ------------
Net loss ...........................................       $(11,693,454)       $ (8,853,346)       $ (8,888,174)       $(40,132,430)
                                                           ============        ============        ============        ============
Pro forma net loss per share....................           $      (1.54)       $      (1.18)
                                                           ============        ============
Shares used in computing pro forma
  net loss per share(1).........................              7,617,470           7,524,168
Net loss per share..............................                                                   $      (1.37)
                                                                                                   ============
Shares used in computing net
  loss per share (1)............................                                                     10,463,149

<CAPTION>

                                                                                            At December 31,         At September 30,
                                                                                                1995                     1996
                                                                                            -------------           ----------------
<S>                                                                                         <C>                       <C>        
Balance Sheet Data:                                                                                               
Working capital (deficit)......................................................             $ (6,231,672)             $15,695,978
Total assets...................................................................                4,732,171               19,685,782
Total current liabilities......................................................                7,277,339                1,882,033
Long-term liabilities..........................................................                2,036,455                1,421,097
Deficit accumulated during development stage...................................              (31,244,256)             (40,132,430)
Total stockholders' equity                                                                                        
  (net capital deficiency).....................................................             $ (5,822,655)             $15,141,620
</TABLE>

- --------
(1)   See Note 1 of Notes to Consolidated Financial Statements.




                                       12
<PAGE>


                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  FINANCIAL CONDITION AND RESULTS OF OPERATIONS

     The following  discussion and analysis  should be read in conjunction  with
the  financial   statements  and  notes  thereto  appearing  elsewhere  in  this
Prospectus.


     The following discussion contains  forward-looking  statements,  within the
meaning of the "safe  harbor"  provisions of the Private  Securities  Litigation
Reform  Act of  1995,  the  attainment  of  which  involves  various  risks  and
uncertainties.  Forward-looking  statements  may be  identified  by  the  use of
forward-looking  terminology,   such  as  "may",  "will,"  "expect,"  "believe,"
"estimate,"  "anticipate,"  "continue,"  or similar  terms,  variations of those
terms or the negative of those terms.  The Company's  actual  results may differ
materially  from those  described in these  forward-looking  statements  due to,
among other factors, the results of ongoing research and development  activities
and preclinical testing and those discussed under "Risk Factors."

Results of Operations

   General

     The  Company is a  development  stage  company.  Since its  inception,  the
Company's  efforts  have been  principally  devoted to  acquiring  licenses  and
technologies,  research and development,  securing patent protection and raising
capital.  The  Company  has  had no  significant  revenue  and has  incurred  an
accumulated  deficit through September 30, 1996 of  $(40,132,000).  These losses
have resulted from  expenditures  for research and  development  and general and
administrative activities, including legal and professional activities, and have
continued to date. Through September 30, 1996, research and development expenses
totalled   $26,723,000  and  general  and   administrative   expenses   totalled
$9,447,000.

     The  Company  expects  to  continue  to  incur  substantial   research  and
development  costs in the future as a result of funding ongoing (i) research and
development programs at the Operating Companies,  (ii) manufacturing of products
for use in clinical trials,  (iii) patent and regulatory  related expenses,  and
(iv) preclinical and clinical testing of the Operating Companies' products.  The
Company also expects that general and administrative  costs necessary to support
such research and development activities will increase. Accordingly, the Company
expects to incur  increasing  operating losses for the foreseeable  future.  The
Company will also seek to identify new  products and  technologies  for possible
in-licensing  or  acquisition.  See  "--Liquidity  and  Capital  Resources"  and
"Business  --Strategy."  There can be no  assurance  that the Company  will ever
achieve profitable operations.

     The  Company's  strategy  will  continue  to be to seek  public or  private
financing  for  the  Operating  Companies  through  the  sale of  securities  or
corporate partnering arrangements at such time as their stage of development and
working capital  requirements  permit such outside  financing in order to reduce
their financial  dependence on the Company and enable the Company to continue to
expand its product  portfolio  through  acquisitions.  There can be no assurance
that  financing  from such  sources or others  will be  available  to any of the
Operating Companies.  A registration statement for an initial public offering of
securities of Ingenex has been filed with the Securities and Exchange Commission
(the  "Commission").  The underwriter named in such  registration  statement has
advised the Company  that it has  determined  not to proceed  with the  proposed
offering in light of market conditions. Ingenex is engaged in discussions with a
number of other underwriting  firms;  however,  there can be no assurance that a
public offering by Ingenex will be completed in the foreseeable future.


   Nine Months Ended September 30, 1996 Compared With Nine Months Ended 
September 30, 1995

     Total  revenues  were  approximately  $133,000  for the nine  months  ended
September 30, 1996 ("1996 nine months") and approximately  $100,000 for the nine
months ended September 30, 1995 ("1995 nine months") from NIH grants.

     Research   and   development   expenses  for  the  1996  nine  months  were
approximately  $4,024,000 as compared to $4,402,000 for the 1995 nine months,  a
decrease of 9%. The decrease  reflects the  deconsolidation  of Ansan  effective
August 1995, the cessation of operations of Geneic Sciences,  Inc. ("Geneic") in
September 1995 and the completion of certain  sponsored  research for Ingenex in
1995,  offset by the  addition  of  ProNeura  in the fourth  quarter of 1995 and
Trilex in the second quarter of 1996.


                                       13
<PAGE>


     General  and  administrative   expenses  for  the  1996  nine  months  were
approximately  $2,883,000 as compared to $3,536,000 for the 1995 nine months,  a
decrease of 18%. The decrease was due  primarily to the  cessation of operations
of Geneic and a decrease in general  and  administrative  personnel.  In October
1996, the Company recorded a deferred  compensation  charge of $335,000 relating
to the issuance of stock options.

     As a result of the foregoing  expenses,  the Company  incurred an operating
loss of  approximately  $6,733,000  for  the  1996  nine  months  compared  with
$7,838,000 for the 1995 nine months.

     For the 1996 nine  months,  interest  income  was  $519,000  compared  with
$46,000 for the 1995 nine months. This was a result of a substantial increase in
the amount of cash and short-term  investments  from the IPO.  Interest  expense
increased to approximately  $1,943,000 during the 1996 nine months from $827,000
for the 1995 nine  months.  Approximately  $950,000 of the increase for the 1996
period reflects a  non-recurring  charge due to the repayment in January 1996 of
notes issued in a bridge financing ("Bridge Notes").  This non-recurring  charge
represents the unamortized  portion of the $1,200,000 debt discount and $458,000
of debt issuance costs relating to the Bridge Notes.

     Other income (expense) for the 1996 nine months also includes approximately
$700,000  of losses  representing  the  Company's  share of Ansan's  losses,  as
compared with $204,000 for the 1995 nine months.


   Year Ended December 31, 1995 Compared with Year Ended December 31, 1994

     Research and development expenses for the year ended December 31, 1995 were
approximately  $5,888,000  (including a $686,000 charge for acquired  in-process
research and development) as compared to $10,602,000 for the year ended December
31 ,1994, a decrease of 44%. The decrease reflects the deconsolidation of Ansan,
Inc. effective August 1995, the cessation of operations of Geneic Sciences, Inc.
("Geneic") in September  1995 and the completion of certain  sponsored  research
for Ingenex in 1995.

     General and administrative expenses for 1995 were approximately  $3,658,000
as compared to  $2,504,000  for 1994,  an increase of 46%.  The increase was due
primarily to increased expenses associated with supporting the activities of the
Company and the Operating Companies.

     Primarily a result of the  foregoing  decrease in research and  development
expenses, the Company incurred an operating loss of approximately $9,406,000 for
1995 compared with $13,106,000 for 1994.

     For 1995,  interest  expense  increased to  approximately  $1,899,000  from
$97,000 for 1994.  Approximately  $1,250,000  of the increase for 1995  reflects
amortization of the discount on the warrants issued in the bridge financings.


     Other income  (expense)  for 1995 also includes  approximately  $457,000 of
losses representing the Company's share of Ansan's losses.


Liquidity and Capital Resources

     In January  1996,  the  Company  completed  the IPO which  resulted  in net
proceeds  to  the  Company  of   approximately   $8,622,000   after  payment  of
underwriting  discounts, a non-accountable  expense allowance to the underwriter
and other  expenses of the  offering  and the  repayment of the Bridge Notes and
notes issued by Ingenex.  In February 1996, the underwriter of the Company's IPO
exercised its  overallotment  option,  resulting in net proceeds to the Company,
after discounts and commissions to the underwriter, of $2,160,000.

     Upon completion of the IPO, the Company's previously  outstanding shares of
preferred  stock were  converted  automatically  into shares of common  stock at
adjusted  conversion prices per common share less than the public offering price
per common share. The deemed benefit to the preferred stockholders  approximated
$5,400,000  which deemed benefit was recorded by offsetting  charges and credits
to additional paid-in capital at the time of conversion.  There was no effect on
net loss per share from the mandatory conversion.  However, the amount increased
the loss allocable to common stock,  in the calculation of net loss per share in
the 1996 six months.

     On July 31 and August 2, 1996, the Company  completed the Private Placement
which resulted in net proceeds to the Company of approximately $13,867,990 after
payment of placement agent fees and other expenses of the Private Placement.


                                       14
<PAGE>


     At  September  30,  1996,  the  Company  had  cash,  cash  equivalents  and
short-term investments of $17,414,000.  The Company expects to continue to incur
substantial  additional  operating losses from costs related to continuation and
expansion  of  research  and  development,   clinical   trials,   and  increased
administrative and fund raising activities over at least the next several years.
While  the  Company  believes  that  the  proceeds  of the IPO  and the  Private
Placement will be sufficient to sustain its planned operations for approximately
the next 18 months, the Company will be required to seek additional financing to
continue its activities beyond the near term. There can be no assurance that the
Company will be able to obtain any required  additional funds, in which event it
may be necessary for the Company to significantly curtail its operations.

     The Company is party to a master  capital  equipment  lease with respect to
which the Operating  Companies have entered into a sublease and assignment  with
the Company.  At September 30, 1996, the amount  outstanding under the equipment
lease was $807,211 with monthly payments of $30,459.

     The Company has guaranteed  the  obligations of Ingenex under an assignment
and  sublicense  agreement  pursuant to which  Ingenex  received  $2,000,000  in
financing in January  1995.  Such  agreement  currently  provides for 40 monthly
payments of $60,060  through  January 1999.  At September  30, 1996,  the amount
outstanding  under this  agreement  was  $1,419,594.  See "Business -- Sponsored
Research and License Agreements -- Ingenex."

     The Operating  Companies have entered into various agreements with research
institutions,  universities,  and other entities for the performance of research
and development  activities and for the acquisition of licenses related to those
activities.  The aggregate  commitments the Company has under these  agreements,
including  minimum  license  payments,  for the next 12 months is  approximately
$763,000.  Certain of the  licenses  provide for the payment of royalties by the
Company on future  product  sales,  if any.  In  addition,  in order to maintain
license and other rights  during  product  development,  the Company must comply
with  various  conditions  including  the  payment of patent  related  costs and
obtaining  additional  equity  investments by specified  dates.  There can be no
assurance that the Company will have the funds  necessary to preserve its rights
under any of such agreements. Furthermore, in the event the Company is unable to
obtain the necessary  financing to meet all of its current funding  obligations,
the Company will be forced to curtail or cease development efforts at certain of
the Operating Companies.

     In November 1996, the Company  entered into a non-binding  letter of intent
with a major  pharmaceutical  concern for the  in-licensing  of a compound.  The
consummation of the transaction  contemplated by the letter of intent is subject
to the  conduct  of  due  diligence  and  the  preparation  and  negotiation  of
definitive agreements.  Accordingly, there can be no assurance that the proposed
licensing  transaction will be completed.  The letter of intent provides that in
the event a license agreement is signed, the Company will be obligated to make a
payment of  $9,500,000  in cash and  stock.  Substantial  additional  late stage
milestone  payments are also provided for in the letter of intent.  In addition,
the  Company  is  obligated  to  assume  the costs of  developmental  activities
relating to the compound incurred from November 1996.


     At December 31,  1995,  the Company had  consolidated  net  operating  loss
carryforwards  for  Federal  income  tax  purposes  of  $23,600,000,   of  which
$21,800,000 is attributable to the Operating  Companies  (excluding  Ansan). The
net  operating  loss and credit  carryforwards  expire from 2008  through  2010.
Utilization of net operating loss  carryforwards may be subject to a substantial
annual  limitation due to ownership  change  provisions of the Internal  Revenue
Code of 1986.


                                       15
<PAGE>

                                    BUSINESS


General

      The Company is a  biopharmaceutical  company engaged in the identification
and acquisition of synergistic  technologies,  with applications in the areas of
cancer,  disorders  of  the  central  nervous  system  ("CNS")  and  other  life
threatening   diseases,   for  further   research  and  development  by  various
subsidiaries of the Company.  The Company's  operations are currently  conducted
through five entities (the  "Operating  Companies")  Ansan, a company engaged in
the development of small molecule-based  therapeutics intended for the treatment
of cancer and other life threatening diseases; Ingenex, a company engaged in the
development  of  proprietary   gene-based   therapies  and  the  application  of
functional  genetics to pharmaceutical  discovery initially for the treatment of
cancer and certain viral diseases;  ProNeura,  a company engaged in research and
development  activities  relating  to  a  polymeric  implantable  drug  delivery
technology;  Theracell,  a company  engaged  in the  development  of  cell-based
therapeutics intended for the restorative treatment of neurological diseases and
central nervous system disorders;  and Trilex, a company engaged in research and
development of therapeutic  cancer vaccines  utilizing  anti-idiotypic  antibody
technology.

      Statements in this report that are not  descriptions  of historical  facts
may be forward looking  statements that are subject to risks and  uncertainties.
Actual results could differ materially from those currently anticipated.


Strategy

      The Company  participates  in the  development and growth of the Operating
Companies by identifying  and acquiring  technologies  and by providing  initial
financing,  management expertise and other resources.  In acquiring  synergistic
technologies with  applications in the areas of cancer,  CNS disorders and other
life threatening diseases,  the Company pursues opportunities that encompass the
full breadth of mainstream therapeutic  approaches to drug discovery,  including
small molecule therapy,  gene therapy and cell therapy. The Company believes its
strategy  may  enhance  product  development  opportunities  and  result in more
efficient use of limited resources. The Company intends, if sufficient financing
can be obtained,  to continue to build value through  identifying  and acquiring
additional  complementary  technologies  or  products  and/or  development-stage
biopharmaceutical companies.

      The  Company's  strategy is to invest in the Operating  Companies,  to the
extent of available  resources,  and to develop the  technology  to the stage of
initial  clinical  testing  and  to  seek  joint  venture,  licensing  or  other
collaborative  arrangements with one or more pharmaceutical companies which will
bear the cost of the  regulatory  approval  process  necessary to  commercialize
therapeutics in the United States and in foreign  markets,  as well as to market
any products which may be successfully  developed by the Operating Companies and
approved for commercialization.  It is not anticipated that any of the Operating
Companies' proposed products will receive the requisite  regulatory approval for
commercialization  in the United  States or elsewhere for several  years,  if at
all.


      In  furtherance  of its strategy to acquire new products and  technologies
through  in-licensing,  in November 1996, the Company entered into a non-binding
letter of intent with a major  pharmaceutical  concern for the in-licensing of a
compound. Consummation of the transaction contemplated thereby is subject to the
conduct of due  diligence  and the  preparation  and  negotiation  of definitive
agreements.



The Operating Companies

   Ansan

      Ansan is  engaged  in the  research  and  development  of  small  molecule
therapies intended to treat cancer,  blood disorders and other serious diseases.
Ansan's initial product under development,  Pivanex(TM), is derived from AN 9, a
patented  analog of butyric acid, and is intended for the treatment of cancer by
promoting cellular differentiation. Traditional cytotoxic chemotherapeutics tend
to kill cancer cells  preferentially  because cancer cells divide more often and
more rapidly than most normal  cells.  Unfortunately,  such agents may also kill
rapidly dividing normal cells, including blood cells and cells of the intestinal
lining, which leads to side effects such as anemia, nausea, vomiting and risk of
infection.  Unlike traditional cytotoxic  chemotherapy,  differentiation therapy
represents  a relatively  new  direction  in cancer  research,  and involves the
development  of agents that,  in contrast to the  function of cytotoxic  agents,
induce  cancer cells to  differentiate,  mature and exhibit  more normal  growth
properties. Differentiation therapy may also lead to apoptosis, or what is known
as normal  "programmed  cell death,"  resulting in the destruction of the cancer
cells while  sparing  normal  cells.  Pivanex is  currently  in Phase I clinical
trials.

                                       16
<PAGE>

     Ansan is also developing Novaheme(TM), which is derived from AN 10, another
novel analog of butyric  acid,  and is intended for the treatment of sickle cell
anemia and b-thalassemia, genetic disorders that impair one's ability to produce
normal adult hemoglobin, the oxygen carrying protein of red blood cells. Initial
preclinical  experiments indicate that Novaheme(TM) appears to be more potent at
increasing fetal hemoglobin levels than its competitors (including butyric acid,
hydroxyurea and isobutyramide).  Ansan believes that Novaheme(TM) may also prove
to exhibit lower  toxicity than certain of the other current  treatment  options
(such as the cytotoxic agent  hydroxyurea) and may,  therefore,  prove useful in
the treatment of such blood disorders.

     Ansan is also  attempting  to broaden it's  portfolio  of drug  development
candidates  through  inlicensing.  Target  drugs have patent  protection,  novel
applications  and  development  needs  suitable to the current  organization  of
Ansan.  In May 1996,  the  Company  acquired  rights to develop  an  intravenous
formulation of the drug Apafant for all clinical  indications.  The Company will
initially focus on the use of such drug for the treatment of acute pancreatitis.
There can be no  assurance  that Ansan will be able to enter into any other such
licensing arrangements.

     In  September  1995,  Ansan  completed  an initial  public  offering of its
securities.  Its common stock is currently  traded on the Nasdaq SmallCap Market
under the symbol  ANSN.  The Company  currently  owns  approximately  44% of the
outstanding  capital stock of Ansan. The Company holds an option,  which expired
on September 8, 1996, to purchase an additional 400,000 shares of Ansan's Common
Stock,  the exercise of which would  result in the Company  owning a majority of
Ansan's   outstanding  capital  stock.  The  Company  and  Ansan  are  presently
negotiating to further extend this option.


   Ingenex

     Ingenex  is  engaged  in  the  research  and   development   of  gene-based
therapeutics  and  efforts  to  discover  medically   important  genes  intended
initially for the treatment of cancer and certain viral  diseases.  Gene therapy
is an approach to the treatment and prevention of genetic and acquired  diseases
that  involves  the  insertion of new genetic  information  into target cells to
produce specific proteins or effect changes in the regulation of gene expression
needed to correct or modulate disease conditions.  The operations of Ingenex are
focused on developing the proprietary  gene component of  gene-therapy  products
(as  opposed to the vector  used to insert the gene).  To this end,  Ingenex has
licensed three core technologies,  one of which is an enabling  technology which
identifies new gene therapy  products (the GSX(TM)  System) and two of which are
gene therapy product candidates (MDRx1(TM) and RB-94(TM)).

     The GSX(TM) System being  developed by Ingenex and its  collaborators  is a
proprietary  method for rapidly  identifying and isolating specific fragments of
genes,  known as genetic  suppressor  elements  ("GSEs"),  that interfere with a
given  biologic or disease  process.  The GSX(TM)  System selects the portion or
portions of the gene or genes that  confer(s) a  specific,  desired  behavior to
cells and does so via a system that utilizes  "Darwinian  selection" or survival
of the  GSE  with  the  most  desired  behavior.  Such  behavior  could  include
resistance  to viruses,  tolerance  of harmful  drug side  effects,  reversal of
cancerous  cellular  transformation,  or  other  desirable  properties.  Ingenex
believes  that the GSX(TM)  System  represents a new approach to gene  discovery
based on its ability to provide information regarding the function of discovered
genes.  While Ingenex  believes that the GSX(TM)  System has broad  application,
Ingenex intends to use it initially to identify gene-based  therapeutics for the
treatment  of viral  diseases,  such as  hepatitis  and  AIDS.  Ingenex  also is
exploring  the use of the GSX(TM)  System to  discover  novel  therapeutics  for
cancer and other diseases characterized by aberrant cellular function.

     Ingenex is currently developing two potential gene therapy products for the
treatment of cancer,  including a novel gene therapy program designed to protect
normal bone marrow and blood cells in an effort to improve the  effectiveness of
chemotherapy  against many common cancers,  including  breast,  ovarian and lung
cancer.   Ingenex   and  its   collaborators   are   developing   a   gene-based
chemoprotective product, MDRx1(TM), to genetically engineer multidrug resistance
into  blood  progenitor  (or stem)  cells in order to  protect  these  otherwise
sensitive normal cells from chemotherapy toxicity.  MDRx1(TM) utilizes the human
multi-drug  resistance  gene (MDR1) which encodes  "P-glycoprotein,"  a membrane
protein  capable  of  pumping a variety  of  chemicals  out of cells.  MDRx1(TM)
involves  the  insertion of the MDR1 gene ex vivo into stem cells that have been
removed  from cancer  patients in order to render some portion of the stem cells
resistant to chemotherapeutic agents. The modified stem cells are then reinfused
into the patients where they  repopulate  the blood system with  chemo-resistant
blood cells.  The conferred  resistance would  potentially  allow patients to be
given  higher  doses of  anti-cancer  agents  than could be given  under  normal
circumstances  (i.e.,  if the  bone  marrow  was  not  protected).  Bone  marrow
suppression  is the biggest  dose-limiting  toxicity  factor in the treatment of
cancer patients because  chemotherapy must be interrupted or reduced in order to

                                       17
<PAGE>

allow the bone marrow to recover.  MDRx1(TM) may allow for the administration of
greater or more frequent doses of chemotherapy  while protecting the bone marrow
cells. If this approach proves successful, it is also possible that MDR1 will be
utilized as a  co-selective  gene to help  introduce and maintain other genes of
potential therapeutic value in human cells.

     Clinical  testing is in  progress at MD Anderson  Cancer  Center,  Houston,
Texas of a preliminary form of MDRx1(TM) with patients being treated for ovarian
cancer (since  December  1994) and with patients being treated for breast cancer
(since  January 1995) to determine  whether the MDR1 gene can be introduced  and
maintained in humans. The clinical testing involves introducing ex vivo the MDR1
gene in human blood stem cells extracted from the bone marrow of cancer patients
and  then   reintroducing   the  cells,   which  have  been  made  resistant  to
chemotherapeutic agents, where they quickly repopulate the hematopoietic system.
To  date,  the  results  of such  testing  show  that  the  MDR1  gene  has been
successfully  introduced into a fraction of the donor bone marrow of most or all
of the patients in the study. There are a number of issues which will need to be
addressed in the event the outcome of the ongoing studies is positive, including
ascertaining  the  optimal  vector for the MDR1 gene and  contracting  for large
scale production of the final product.

     Ingenex  is  developing  a  second  product,  RB-94(TM),  based  on a tumor
suppressor gene, for the treatment of solid tumors.  RB-94(TM) is a gene therapy
product in preclinical  development that combines a truncated variant (p94) of a
tumor   suppressor   gene  (the  "RB  gene")  with  a  viral  vector.   Although
reintroducing  the RB gene itself into RB  deficient  tumor cells  inhibits  the
growth of these cells,  it sometimes  does so  incompletely  and tumor  regrowth
occurs in  reconstituted  cells after a period of latency.  Ingenex believes the
form of the RB protein  encoded by the  RB-94(TM)  gene therapy  product is more
effective at causing suppression of tumor cells than the full-length RB protein,
based on data  demonstrating in vitro suppression of numerous tumor types tested
to date, including tumors of the bladder,  prostate,  cervix, bone, breast, lung
and fibrous tissue. In addition,  preliminary  experiments indicate the modified
gene is effective in  suppressing  some cancer cell lines in vitro that continue
to contain the functional native gene.

     The potential gene therapy  product  RB-94(TM) will consist of the modified
RB gene and an  appropriate  liposome  or viral  vector.  The  product  would be
delivered  directly to tumor cells through local  application.  In collaboration
with Baylor  College of  Medicine,  Ingenex is  currently  testing  RB-94(TM) in
preclinical studies of solid tumors in mouse models.  There can be no assurance,
however,  that the results of such  studies  will be  positive or that  positive
results would correlate to similar results in human subjects.

     Ingenex  has  obtained  licenses  under  patents  and  patent  applications
relating to each of the core technologies relating to its various products under
development and its gene discovery system. These include an issued United States
patent and  patent  applications  directed  to  certain  aspects of the  GSX(TM)
System;  an issued United States patent  directed to a nucleic acid encoding the
human MDR1 protein responsible for multidrug resistance; an issued United States
patent directed to a monoclonal antibody,  that can be used to reverse multidrug
resistance;  an issued United  States patent  relating to the use of MDR gene in
creating and selecting drug  resistant  mammalian  cells;  and an allowed United
States  patent   application   directed  to  DNA   molecules   that  encode  the
tumor-suppressing protein p94RB (the protein relevant to the Company's potential
RB-94(TM) product) and related, pending applications directed to methods of gene
therapy and the protein. The issued patents expire in either 2010 or 2012.


     The Company  currently owns  approximately  81% of the outstanding  capital
stock of Ingenex. Ingenex has filed a registration statement with the Commission
for an initial public offering of its securities.  The underwriter  named in the
registration  statement has determined not to proceed with the proposed offering
in light of market  conditions  and Ingenex is  currently  in  discussions  with
several other  potential  underwriters.  There can be no assurance  that Ingenex
will complete a public offering in the foreseeable future.



   Theracell

     Theracell  is  engaged  in  the  research  and  development  of  cell-based
therapeutics  intended  for use in the  restorative  treatment  of  neurological
diseases  and  other  serious  brain  disorders.   A  majority  of  neurological
disorders,  including  Parkinson's  disease,  Alzheimer's  disease,  stroke  and
epilepsy,   occur  when  brain  cells  (neurons)  die.  Because  neurons  cannot
regenerate, most current pharmaceutical therapies are directed toward amplifying
the function of the remaining neurons,  an approach which becomes less effective
over time as an increasing  number of the neurons die.  Theracell's  proprietary
technologies    enable   the    development   of   cell-based    therapies   for
minimally-invasive,  



                                       18
<PAGE>

site specific (i.e., stereotaxic) delivery to the central nervous system ("CNS")
to replace or provide  therapeutic  factors  precisely  where they are needed in
order to treat the neurological disease or disorder.

     One of Theracell's  technologies  involve the direct  implantation into the
CNS of  microscopic  beads  ("microcarriers"),  the surfaces of which are coated
with live cells that  secrete  therapeutic  factors  useful in the  treatment of
certain  neurological  diseases.  The beads provide a matrix,  or  membrane-like
surface,  to which  cells  attach and grow.  Theracell  believes  that this cell
coated microcarrier ("CCM(TM)") technology can facilitate site-specific delivery
of missing or deficient neurotransmitters, growth factors and replacement tissue
to  diseased  or  injured  areas of the brain by  increasing  the  survival  and
successful  engraftment of the cells.  Preliminary animal studies of Theracell's
CCM(TM)  technology  indicate  that the presence of the  microcarriers  enhances
transplanted  cell survival  beyond that of cells that have no such membrane for
attachment.  Theracell's  initial product  candidate based on this technology is
Spheramine(TM),  microcarriers  coated with  dopamine-producing  human pigmented
retinal  epithelial  ("HPRE")  cells  intended for the treatment of  Parkinson's
disease.

     A proof of the CCM(TM) concept,  using an investigator  sponsored  clinical
trial,  could begin  during  1996.  The goal of this trial will be to reduce the
number of fetal cells  required in human fetal cell  transplants  in Parkinson's
patients by improving  engraftment of such cells. If the effect of microcarriers
can be demonstrated,  Theracell  anticipates  clinical testing of Spheramine(TM)
utilizing HPRE cells  (non-fetal  human cells) could begin in the second quarter
of 1998.

     Theracell's  development efforts with respect to the CCM(TM) technology are
at an early  stage  and there  are a number  of  issues  that  must be  resolved
including,  long term effects of bead  implantation,  source of HPRE cells, etc.
Product  research  and  development  is being done  through New York  University
("NYU"),  University  of South Florida and contract  research and  manufacturing
organizations.  Theracell has obtained an exclusive  worldwide  license from NYU
under a United States patent  application (the "NYU License") and  corresponding
foreign patent applications relating to the CCM(TM) technology.

     Complementing CCM(TM) is a technology based on Sertoli cells which has been
licensed  exclusively on a worldwide  basis under patent  applications  from the
University  of South Florida (the "USF  License").  These unique cells secrete a
host of growth  factors  important  to the  repair  and  resprouting  of damaged
neurons, and thus may be useful in restoring function in degenerative  diseases,
including  Huntington's  disease,  stroke,  Alzheimer's  disease,  epilepsy  and
traumatic  brain  injuries.  Additionally,  they are  capable  of  providing  an
immunologically  privileged and nurturing environment to other types of cells of
interest  for  transplant,   and  thus,  analogous  to  CCM(TM)  may  facilitate
successful engraftment of such cells.

     Theracell's  development efforts with regard to Sertoli cell technology are
at an early  stage  and there  are a number  of  issues  that  must be  resolved
including source of cells, long term effects of cell implantation,  etc. Product
research and  development  is being done through the University of South Florida
and  contract   research  and  manufacturing   organizations.   Initial  product
development efforts are focused towards Huntington's disease.

     The Company currently owns 99% of the outstanding stock of Theracell.


   ProNeura

     ProNeura  is  engaged  in  the  research  and  development  of  CNS-related
technology  with  application  in the  treatment of a number of  neurologic  and
psychiatric disorders in which conventional  treatment is limited by variability
of drug  concentration  in blood and poor patient  compliance.  The  technology,
which has been licensed from the Massachusetts  Institute of Technology ("MIT"),
consists of a polymeric  drug  delivery  system that  provides  controlled  drug
release over extended  periods (i.e.,  from three months to more than one year).
The technology involves imbedding the drug of interest in a polymer.  The matrix
is then implanted  subcutaneously  to provide  systemic  delivery as body fluids
wash over the implant and the drug is  released.  This  release  occurs layer by
layer,   resulting  in  a  constant  rate  of  release  similar  to  intravenous
administration.   ProNeura   believes  that  such   long-term,   linear  release
characteristics are highly desirable for many pharmacological  agents,  avoiding
peak and trough  level  dosing  that  poses  problems  for many CNS  therapeutic
agents.

     The MIT  technology  offers  significant  potential  benefits  to  patients
suffering  from  chronic  CNS   disorders,   including   Huntington's   disease,
Parkinson's  disease,  schizophrenia and psychosis and chronic pain by providing
long-term, intravenous type dosing in a single administration,  in an ambulatory
outpatient setting. Patients that pose compliance concerns,  including those who
are  impaired  or  whose  socioeconomic  circumstances  hinder 


                                       19
<PAGE>

compliance with traditional chronic drug  administration  could also potentially
benefit from this technology.  There are, however, a number of factors that will
need to be addressed in the research and  development  phase of any product that
results  from this polymer  matrix  technology,  including  (i)  flexibility  in
dosing;  (ii) drug potency;  (iii)  potential  negative  effects from  long-term
continuous drug delivery;  and (iv) feasibility of surgical device  implantation
and removal.  There can be no assurance  that such factors will be  successfully
resolved.

     ProNeura  expects  to  have  prototype  product  development  done  through
contract   research  and   manufacturing   organizations  and  is  currently  in
discussions  with  several  companies.  The Company  owns  approximately  79% of
ProNeura.


   Trilex

     Trilex was incorporated under the name Ascalon,  Inc. in May 1996 to engage
in  research  and   development  of  cancer   therapeutic   vaccines   utilizing
anti-idiotypic  ("anti-id")  antibody technology licensed from the University of
Kentucky Research Foundation.  Anti-id monoclonal antibodies are not traditional
antibodies,  but are exact mirror images of normal  antibodies at their variable
regions.  The anti-id therapeutics under development by Trilex are targeted at a
specific  epitope (site) that is only present on the targeted cancer cell and is
not found on normal tissue. From a molecular biological  perspective the anti-id
antibody is structurally similar to the cancer epitope.  When injected into that
patient,  the antibody acts as a trigger for the normal immune system's response
of T and B lymphocytes  to destroy  target  cancer cells.  The amount of protein
required to elicit this response is relatively small at two milligrams per dose,
compared with the tens or hundreds of milligrams  per dose utilized in so-called
"traditional"  monoclonal  therapy or radio  imaging.  Trilex  believes this low
dosage  level is the reason for the  insignificant  side  effects  exhibited  in
patients.

     To date,  Trilex has identified four separate  anti-id  antibodies that are
demonstrating   an   immune   response   against   antigens    associated   with
adenocarcinomas,  breast  cancer,  small cell lung cancer and  melanoma,  T-cell
lymphoma and leukemia.  All of such antibodies have successfully entered Phase I
clinical  trials  and Phase II and Phase III  clinical  trials  for three of the
antibodies are scheduled to begin in early to mid 1997. The four antibodies are:

     o    Anti-sH1  antibody (CEA antibody)  CeaVac.  The Company  believes this
          product has potential  utility for adjuvant  therapy and the treatment
          of advanced  adenocarcimonas,  notably,  colorectal cancer,  non-small
          cell   lung   cancer,    pancreatic   cancer   and   gastric   cancer.
          Carcinoembryonic  antigen  ("CEA") is produced by the largest group of
          cancers,  adenocarcinomas.  In particular,  the anti-CEA  antibody has
          received widespread  interest in the international  oncology community
          as it is the first potential vaccine to break CEA immune tolerance. In
          animal models (i.e.,  mice),  Trilex has demonstrated that the anti-id
          antibody can protect  against the  development  of colorectal  cancers
          that express the carcinoembrionic  antigen.  Trilex is seeking, during
          1997, to initiate  Phase III studies in colorectal  cancer in patients
          who have been rendered  disease-free by surgery,  but are at high risk
          for  recurrence.  A  modified  study has  already  begun and the first
          patients continue to be disease-free after 24 months.

     o    Anti-I17  antibody  TriGem.  The  Company  believes  this  product has
          potential  utility  in  adjuvant  therapy  and  for the  treatment  of
          advanced cancers that express the GD2 ganglioside, including melanoma,
          small cell lung cancer and sarcoma.

     o    Anti-11D10  antibody  TriAB.  The Company  believes  this  product has
          potential  utility in  adjuvant  therapy for the  treatment  of breast
          cancer.

     o    Anti-4Dc  antibody.  The Company  believes  this product has potential
          utility in adjuvant  therapy for the treatment of T-cell  lymphoma and
          leukemia.


     A number of United  States and foreign  patent  applications  covering both
therapeutic and diagnostic  applications of the anti-id antibody  technology are
pending. The Company owns approximately 98% of Trilex.



Sponsored Research and License Agreements

     The  Operating  Companies  are party to several  agreements  with  research
institutions,  universities  and other entities for the  performance of research
and development  activities and for the acquisition of licenses relating to such
activities.


                                       20
<PAGE>

   Ansan

     The majority of Ansan's research and certain of the development  activities
to date have been conducted  pursuant to a two-year sponsored research agreement
with Bar-Ilan which  terminated in October 1994. This program  involved in vitro
and in vivo testing of AN 9 and AN 10, as well as the preparation and evaluation
of additional  derivatives of butyric acid. The research agreement granted Ansan
an  option to  license  exclusively  any  technology  related  to  butyric  acid
conceived or reduced to practice as a result of the research program.

     Ansan has  acquired,  pursuant to a license  agreement  with  Bar-Ilan (the
"Bar-Ilan  Agreement"),  an  exclusive,  worldwide  license to an issued  United
States patent and certain foreign patents and patent applications covering novel
analogs of butyric  acid owned by Bar-Ilan  University  and Kupat  Hulim  Health
Insurance Institution.  The Bar-Ilan Agreement provides for the payment by Ansan
to Bar-Ilan of royalties based on sales of products and processes  incorporating
the licensed  technology,  subject to minimum annual amounts commencing in 1995,
as well as a  percentage  of any  income  derived  from  and  sublicense  of the
licensed  technology.  Ansan must also pay all costs and  expenses  incurred  in
patent  prosecution and  maintenance.  The minimum annual royalties for 1996 are
$15,000 and increase annually to $60,000 for 1999.

     Ansan must also satisfy certain other terms and conditions set forth in the
Bar-Ilan Agreement in order to retain its license rights  thereunder,  including
the use of  reasonable  best efforts to bring any products  developed  under the
Bar-Ilan Agreement, to market and to continue diligent marketing efforts for the
life of the license,  the timely commencement of toxicology testing on small and
large animals,  the development of and compliance with a detailed  business plan
and the timely payment of royalty fees.

     In May 1996,  Ansan entered into a license  agreement (the "BI  Agreement")
with  Boehringer  Ingleheim  GmbH ("BI")  pursuant to which Ansan  acquired  the
exclusive  right in the  United  States  and the  European  Union to  develop an
intravenous  formulation of the patented drug Apafant. The BI Agreement provides
for the payment by Ansan to BI of future milestones and royalty payments.  Under
certain  circumstances,  BI can reacquire such rights and assume development and
commercialization  of the drug.  In such event,  BI is obligated to make certain
milestone and royalty payments to Ansan.

   Ingenex

     Ingenex is a party to several  license  agreements  with the  University of
Illinois at Chicago ("UIC") which grant Ingenex the exclusive  worldwide license
under certain issued patents and patent  applications,  including those relating
to the GSX(TM)  System,  methods for  preventing  multi drug  resistance and the
human MDR1 gene (collectively,  the "UIC Licenses"). The exclusive nature of the
licenses is subject in certain instances to certain reservations,  including the
use of all or part of the subject matter of the licenses for research, education
and other non-commercial purposes. In addition,  Ingenex's rights under the MDR1
license are subject to a non-exclusive  right granted to  Burroughs-Wellcome  to
transfect  cell  lines  with the MDR1  gene,  and to use the  transfectants  for
research purposes.  Burroughs-Wellcome does not, however, have the right to sell
or transfer the  transfectants or any derivatives  thereof,  without the written
authorization of UIC.

     The UIC Licenses provide for the payment of license issue fees totaling, in
the  aggregate,  approximately  $145,000  and a royalty to UIC based on sales of
products and processes  incorporating the licensed technology.  Each UIC License
also  requires the payment of certain  minimum  amounts  during the time periods
provided  therein.  Furthermore,  Ingenex will pay to UIC (i) royalties based on
sublicensing income, (ii) a percentage of revenues from research relating to the
subject  matter of each UIC License that is  performed  on a contract  basis for
third  parties  and  (iii)  all  costs  and  expenses   associated  with  patent
prosecution and  maintenance.  Ingenex must also satisfy certain other terms and
conditions of the UIC Licenses in order to retain its license rights thereunder,
including the use of best efforts to bring any products  developed under the UIC
Licenses to market,  the development of and compliance with a detailed  business
plan,  obtaining all necessary  government  approvals and the timely  payment of
license and royalty fees. In addition, Ingenex has the right in all instances to
elect to  assume  control  of patent  prosecution  of the  licensed  technology.
However, Ingenex may determine that the benefits of filing for patent protection
are outweighed by costs,  security or other constraints.  As a result, there can
be no  assurances  that  Ingenex  will obtain or seek patent  protection  in all
jurisdictions into which it sells products made under the licenses.

     Ingenex has obtained additional  exclusive,  worldwide licenses from UIC to
foreign and domestic patent applications  relating to genes and genetic elements
associated  with (i)  sensitivity to cisplatin in human cells,  (ii)  neoplastic
transformation  and (iii) sensitivity to  chemotherapeutic  drugs along with the
association  of  kinesin  with   chemotherapeutic   drug  sensitivity.   Further
development of the technologies to which the licensed patent


                                       21
<PAGE>

applications  relate  will  depend  on the  ability  of  Ingenex  to enter  into
corporate  partnering  arrangements  on  acceptable  terms.  All  three of these
licenses  are  subject to certain  rights of third  parties  for  non-commercial
research and  educational  purposes.  These licenses  provide for the payment of
license issue fees totaling  $50,000 ($10,000 of which has been paid through the
date hereof),  royalties based on sales of products and processes  incorporating
the  licensed  technology,  subject to certain  minimum  annual  amounts,  and a
percentage  of  all  revenue  received  from  any  sublicense  of  the  licensed
technology.  The obligations of Ingenex under these agreements are substantially
similar to those contained in the UIC Licenses.

     Ingenex has  acquired an  exclusive  license  from MIT (the "MIT  License")
under an  issued  patent  relating  to the use of MDR  genes  for  creating  and
selecting drug resistant  mammalian  cells. The license to Ingenex is subject to
prior grants of (a) an irrevocable,  royalty-free,  nonexclusive license granted
to the United  States  government,  (b)  non-exclusive  licenses  granted to Eli
Lilly,  Inc.  and  Genetics  Institute,  Inc.  for  research  purposes  and  (c)
non-exclusive,  commercial  licenses  that may be  granted  pursuant  to options
granted to Eli Lilly,  Inc. and Genetics  Institute,  Inc. to use aspects of the
licensed  technology  but only to make  products that do not  incorporate  genes
claimed  in the  patent,  proteins  expressed  by such genes or  antibodies  and
inhibitors to such genes.  The MIT License provides for the payment of royalties
based  on net  sales  of  products  and  processes  incorporating  the  licensed
technology,   subject  to  certain  minimum  annual  amounts,  a  percentage  of
sublicensing income arising from the license of such products and processes, and
the  issuance  to MIT of shares  of its  Common  Stock . Under the MIT  License,
Ingenex must also use  reasonable  best efforts to bring any products  developed
under the MIT License to market,  develop  and comply  with a detailed  business
plan and make timely payment of license and royalty fees.

     In January  1995,  Ingenex  entered  into an  assignment  and license  back
transaction  pursuant  to which  Ingenex  assigned  its  rights  under the three
primary UIC  Licenses  relating to the human MDR1 gene,  methods for  preventing
multi-drug  resistance and the GSX(TM) System and the MIT License (the "Assigned
Licenses") to Aberlyn Capital Management Limited Partnership ("ACM") in exchange
for payment of $2,000,000 from ACM to Ingenex (the "ACM  Agreement").  Under the
ACM Agreement,  the rights under the Assigned  Licenses are sublicensed  back to
Ingenex by ACM in consideration for six monthly payments of $25,000 beginning in
February 1995 and 42 monthly payments of $60,060 thereafter  (collectively,  the
"License  Payments").  The License  Payments  may be prepaid at any time.  After
receipt  by ACM of all  amounts  due under the  License  Payments,  Ingenex  may
repurchase the Assigned  Licenses from ACM for one dollar.  In the event Ingenex
defaults in its obligations  with respect to the monthly License  Payments,  ACM
will have the right to terminate the  sublicense,  in which event,  Ingenex will
lose all of its rights under the Assigned  Licenses.  The Company has guaranteed
the obligations of Ingenex under the ACM Agreement.

     In October  1992,  Ingenex  acquired an exclusive,  worldwide  license (the
"Baylor License") under United States and foreign patent  applications  assigned
to Baylor College of Medicine  relating to a modified tumor suppressor gene, the
RB gene,  including  its use in  conferring  senescence to tumors that forms the
basis of SG-94(TM). The Baylor License provides for royalties based on net sales
of products and  processes  incorporating  the licensed  technology,  subject to
certain minimum annual amounts and a percentage of  sublicensing  income arising
from the  license of such  products  and  processes.  Under the Baylor  License,
Ingenex must use reasonable  best efforts to bring any products  developed under
the Baylor License to market,  develop and comply with a detailed business plan,
fund  research  pursuant  to the Baylor  research  agreement,  commence a cancer
therapy research program,  make timely payment of royalty fees and pay all costs
and expenses incurred in patent filing, prosecution and maintenance.

   Theracell

     Theracell has acquired an exclusive, worldwide license under certain United
States and  foreign  patent  applications  pursuant  to a research  and  license
agreement  with  New  York  University  (the  "NYU  Agreement").   These  patent
applications  relate to technology  that enables cells of neural and  paraneural
origin to be transplanted  into the mammalian brain by attaching such cells to a
support matrix of microcarrier  beads and implanting the beads into the CNS. The
NYU  Agreement  provides  for the  payment  of  royalties  based on net sales of
products  and  processes  incorporating  licensed  technology,   as  well  as  a
percentage of any income it receives from any sublicense  thereof.  Theracell is
also  obligated to reimburse  NYU for all costs and expenses  incurred by NYU in
filing,   prosecuting   and   maintaining   the  licensed   patents  and  patent
applications.

     Theracell  must  satisfy  certain  other  terms and  conditions  of the NYU
Agreement in order to retain its license rights thereunder.  These include,  but
are not limited to, the use of best efforts to bring licensed products to market
as  soon  as  commercially  practicable  and to  diligently  commercialize  such
products thereafter, the use of best efforts to carry out the performance of all
efficacy, pharmaceutical, safety, toxicological and clinical tests and to obtain
all 



                                       22
<PAGE>

appropriate  governmental  approvals  for the  production,  use and  sale of the
licensed  products,  the development of and compliance with a detailed  business
plan,  the timely  payment of license and royalty  fees and  Theracell's  timely
payment of research funds  (approximately  $250,000 and $200,000 during 1996 and
1997, respectively).

     In March 1996,  Theracell  acquired an exclusive,  worldwide  license under
United States and foreign patent  applications  pursuant to a license  agreement
(the "USF Agreement') with the University of South Florida and the University of
South Florida Research  Foundation,  Inc.  (collectively,  "USF").  These patent
applications  relate  to the  preparation  and  use of  sertoli  cells  for  the
treatment of  neurodegenerative  disorders.  The USF Agreement  provides for the
payment of  royalties  based on net sales by Theracell  or any  sublicensees  of
products and  processes  incorporating  licensed  technology.  Theracell is also
obligated to reimburse USF for all costs and expenses incurred by USF in filing,
prosecuting and  maintaining the licensed patent rights.  Theracell must satisfy
certain  other terms and  conditions of the USF Agreement in order to retain its
license rights  thereunder.  These include the development and introduction into
clinical trials of at least one product based on the licensed  technology within
three  years from the  effective  date of the USF  Agreement,  a second  product
within  five  years of such  date and an  additional  product  every  two  years
thereafter until commercialization of one product, the timely payment of license
and  royalty  fees  and the  payment  of  research  funds  aggregating  at least
$1,500,000 during the two years following the effective date.

   ProNeura

     The Company has  acquired  from MIT and  assigned to ProNeura an  exclusive
worldwide  license to certain United States and foreign  patents which expire in
2007 and 2009 and patent applications relating to the polymeric implantable drug
delivery system (the "MIT License"). The MIT License requires ProNeura to invest
at least  $1,800,000 in operating  capital  toward  development  of products and
processes  covered  by the MIT  License  over  the 24  month  period  commencing
September  1995.  The MIT  License  provides  for the  payment  by  ProNeura  of
royalties  based on sale of products and  processes  incorporating  the licensed
technology,  as well as a percentage of income  derived from  sublicenses of the
licensed technology.

     ProNeura must also satisfy  certain other terms and conditions set forth in
the MIT  License in order to retain its  license  rights  thereunder,  including
using its reasonable best efforts to obtain the necessary  regulatory  approvals
to  conduct  clinical  testing of the  licensed  technology  and to market  such
products,  if  successfully  developed,  in the United  States and  Europe.  The
exclusive  nature of the MIT  License  is also  subject  to the  condition  that
ProNeura file an IND with the FDA by December 31, 1997.

   Trilex

     Trilex has acquired an exclusive,  worldwide  license under certain  United
States and foreign patent applications  pursuant to a license agreement with the
University of Kentucky  Research  Foundation (the "Kentucky  Agreement").  These
patent  applications  relate to the anti-idiotypic  antibodies known as 3H1, 1A7
and 11D10 and their fragments,  derivatives or analogs.  The Kentucky  Agreement
obligates Trilex to fund research at the University of Kentucky in the amount of
$350,000  per year for five  years.  The  Kentucky  Agreement  provides  for the
payment of certain  license fees totaling up to a maximum of $470,000 as well as
royalties based on net sales of licensed products by Trilex or any sublicensees.
Trilex must also diligently pursue a vigorous  development  program with respect
to the licensed  technology  in order to maintain  its license  rights under the
Kentucky Agreement.

Management and Financial Services

     The Company has historically  provided a full range of management  services
to its Operating Companies as follows:

      o   Executive Management and Administrative Services such as:
            -- development  of business  strategies and plans
            -- development of strategies and plans for raising capital 
            -- operational planning and implementation 
            -- investor relations

      o   Business Development Services such as:
            -- seeking and negotiating technology licenses
            -- seeking and negotiating corporate partnerships
            -- seeking and negotiating equity investments

                                       23
<PAGE>

      o   Financial Services such as:
            -- preparation  of budget  and  financial  statements  
            -- cash flow management 
            -- expenditure  monitoring  and control 
            -- bookkeeping services and managing  external audit  relationship 
            -- daily banking activities 
            -- processing payroll 
            -- compliance reporting 
            -- accounts payable management

      o   Human Resources Services such as:
            -- recruiting
            -- compensation consulting
            -- labor law compliance and interfacing with government agencies
            -- personnel documentation and benefit program administration

     The  services  utilized by any of the  Operating  Companies  are based upon
their  respective  needs and stages of  development.  The amount  billed to each
Operating  Company  for such  services  is based upon an estimate of the cost of
providing such services and is fixed on an annual basis.  Each Operating Company
also pays for any  out-of-pocket  expenses  incurred by the Company in providing
the services to the Operating Company.


Patents and Proprietary Rights

   General

     The Company's success will depend, in part, on its ability, and the ability
of the Operating Companies and their licensor(s), to obtain protection for their
products and  technologies  under  United  States and foreign  patent  laws,  to
preserve their trade secrets,  and to operate without infringing the proprietary
rights of third parties. The Operating Companies have obtained rights to certain
patents and patent  applications and may, in the future,  seek rights from third
parties to additional patents and patent applications. There can be no assurance
that patent applications  relating to the Operating Companies potential products
or technologies, including those licensed from others, or that it may license in
the future,  will result in patents being issued,  that any issued  patents will
afford  adequate  protection or not be challenged,  invalidated,  infringed,  or
circumvented,  or that any rights  granted  thereunder  will afford  competitive
advantages to the Company.  Furthermore,  there can be no assurance  that others
have not independently  developed,  or will not independently  develop,  similar
products and/or technologies, duplicate any of the Operating Companies' products
or  technologies,  or, if patents  are issued to, or licensed  by, the  Company,
design around such patents.

     There can be no assurance that the validity of any of the patents  licensed
to the Operating Companies would be upheld if challenged by others in litigation
or that the Company's activities would not infringe patents owned by others. The
Company could incur  substantial  costs in defending itself and/or the Operating
Companies in suits brought against them or any of their  licensors,  or in suits
in which the Company may assert,  against  others,  patents in which the Company
and/or the Operating  Companies  have rights.  Should the  Operating  Companies'
products or technologies  be found to infringe  patents issued to third parties,
the  manufacture,  use,  and sale of such  products  could be  enjoined  and the
Company  and/or the  Operating  Companies  could be required to pay  substantial
damages. In addition, the Company and/or the Operating Companies may be required
to obtain licenses to patents or other proprietary  rights of third parties,  in
connection with the development and use of their products and  technologies.  No
assurance  can be given that any  licenses  required  under any such  patents or
proprietary rights would be made available on acceptable terms, if at all.

     The  Company and the  Operating  Companies  also rely on trade  secrets and
proprietary  know-how,  which they seek to protect,  in part, by confidentiality
agreements with employees,  consultants,  advisors,  and others. There can be no
assurance that such employees,  consultants,  advisors, or others, will maintain
the  confidentiality of such trade secrets or proprietary  information,  or that
the trade  secrets or  proprietary  know-how of the  Company  and the  Operating
Companies  will not  otherwise  become  known or be  independently  developed by
competitors  in such a manner that the Company and the Operating  Companies will
have no practical recourse.


                                       24
<PAGE>

   Ansan

     The Company is aware of the  existence  of prior art  references  which may
affect the validity of certain claims in the Nudelman  patent licensed by Ansan,
which claims broadly cover AN 10, among other  compounds.  Reexamination of this
patent  by the U.S.  Patent  and  Trademark  Office  ("PTO"),  in light of these
references,  may be  necessary to obtain valid claims which are both free of the
prior art and which  specifically  cover AN 10. In the course of  preparing  for
reexamination  or otherwise,  additional  prior art may be uncovered which might
affect the validity of such proposed  narrow  claims.  Such art would need to be
brought  to the  attention  of the PTO in  connection  with  any  reexamination.
Moreover,  there  can be no  assurance  that the PTO will  grant a  request  for
reexamination,  or if  granted,  that  such  reexamination  will  result  in the
issuance of the desire claims.  In any event,  given that the  already-uncovered
prior art  references  relate to compounds but not to methods of treatment,  the
existence of such references would not, as a matter of United States patent law,
be expected to affect the  patentability of any claims directed to the use of AN
10 to treat fetal  hemoglobinopathies  which  presently are pending in the Fetal
Hemaglobinopathies application which Ansan has licensed.

     The Company also is aware of certain  issued  United  States  patents which
appear to cover the administration of butyric acid, during gestation or infancy,
to   ameliorate   b-globin   disorders,   including   sickle   cell  anemia  and
b-thalassemia,  by increasing the level of fetal hemoglobin.  To the extent that
AN 10 converts to butyric acid and in the event  Ansan's  commercial  activities
include administration of AN 10 during gestation and/or infancy, such activities
could give rise to issues of infringement of such patents.


   Ingenex

     The Company is aware of a U.S. patent issued to a third party (the "Riordan
patent")  relating to multidrug  resistance.  The Riordan  patent  describes the
isolation of two DNA molecules that code for fractional  portions of the hamster
protein associated with multidrug resistance (the "hamster MDR-1 gene"), whereas
a patent  licensed by Ingenex (the "Roninson  patent")  describes and claims the
entire  human  MDR-1  gene,  which is the DNA that codes for the entire  protein
associated with multidrug  resistance in human cells.  Nonetheless,  the Riordan
patent claims a DNA molecule  coding for a protein,  or a fragment of a protein,
that is associated  with multidrug  resistance in living cells,  including human
cells. The Riordan patent has an earlier effective filing date than the Roninson
patent,  and there  can be no  assurance  that the  Riordan  patent  will not be
asserted  against the  Company.  Thus,  it may be  necessary  for the Company to
obtain a license  under the Riordan  patent to pursue  commercialization  of its
proposed  gene  therapy  products  utilizing  the  MDR-1  gene.  There can be no
assurance that such a license,  if required,  will be made available to Ingenex,
if at all, on terms acceptable to Ingenex.  Failure to obtain such a license, if
required, could have a material adverse effect on Ingenex.

     The  Company  also is aware of a U.S.  patent  issued to a third party (the
"Anderson  patent")  relating to ex vivo gene  therapy.  The Anderson  patent is
reported  to be  exclusively  licensed  to Genetics  Therapy,  Inc.  The Company
believes that the Anderson  patent could be asserted to cover gene  therapeutics
developed  by  Ingenex,  to the extent  that the  introduction  of a gene into a
subject's  cells is performed ex vivo.  In January 1996, it was reported that an
interference  proceeding  had been  instituted in the U.S.  Patent and Trademark
Office between the issued Anderson  patent and two pending patent  applications.
Depending on the outcome of the interference, it may or may not be necessary for
Ingenex to obtain a license from a party to the  interference  (or its licensee)
to pursue  commercialization  of its proposed gene therapy products utilizing ex
vivo gene therapy.  There can be no assurance that such a license,  if required,
will be made  available to Ingenex,  if at all, on terms  acceptable to Ingenex.
Failure to obtain such a license,  if  required,  could have a material  adverse
effect on Ingenex.

     Ingenex has  received  notice  that three  companies,  Chiron  Corporation,
Sandoz  AG and  Introgene  NV,  are  opposing  the  grant of a  European  patent
corresponding to the Roninson patent,  which Ingenex has licensed from UIC, with
claims  directed  to the human  MDR-1 gene and gene  fragments.  While  Ingenex,
through its  licensor,  intends to  vigorously  respond to the  oppositions,  no
assurance can be given as to the scope of the claims, if any, which the European
Patent Office ultimately will find patentable.

     The Company is aware of the  existence of a prior art  reference  (European
Patent  Application 0 259 031) ("EP 0 259 031"),  which discloses a DNA sequence
corresponding  to the  sequence of the RB94 DNA  molecule  that is claimed in an
issued U.S.  Patent licensed by Ingenex from Baylor (the "Baylor  patent").  The
Baylor  patent also  contains  claims  directed to specific  expression  vectors
containing the RB94 DNA molecule.  Although an issued patent is presumed  valid,
there can be no assurance that the claims of the Baylor  patent,  if challenged,
will not be


                                       25
<PAGE>

found  invalid.  In any event,  given that EP 0 259 031 relates to DNA sequences
but not to methods of gene therapy,  the existence of this reference alone would
not, as a matter of U.S. law, be expected to affect the  patentability of claims
directed  to the use of the  RB94  DNA  molecule  in gene  therapy  for  certain
cancers,  which gene therapy  claims  presently are pending in a related  patent
application  licensed by Ingenex from Baylor. EP 0 259 031 further discloses the
deduced amino acid sequence  encoded by the disclosed DNA sequence,  which amino
acid  sequence  corresponds  to that of the RB94  protein.  The U.S.  Patent and
Trademark  Office has cited this reference in a Final Office Action rejection as
anticipating  the claim directed to the RB94 protein,  which claim  presently is
pending in a second, related patent application licensed by Ingenex from Baylor.


   Theracell

     The PTO has issued a notice of allowance on the core subject  material of a
patent  application  underlying the NYU License with Theracell and a U.S. Patent
is expected to issued  shortly.  An Australian  patent on the core material of a
patent application  underlying the NYU License with Theracell was granted in May
1996. Prosecution of various divisional and continuation  applications and their
foreign  counterparts  continues  satisfactorily;  there  can  be no  guarantee,
however,  that additional patents will be granted.  The Company is also aware of
an issued United States  patent  relating to a method for treating  defective or
diseased cells in the mammalian CNS by grafting genetically modified donor cells
in the CNS (i.e., the brain),  which cells can produce molecules (i.e.,  L-DOPA)
in a  sufficient  amount to  ameliorate  the  defect or  disease.  To the extent
Theracell's  commercial  activities include the grafting of genetically modified
donor cells,  such activities  could give rise to issues of infringement of this
patent.


Competition

     The  pharmaceutical  and  biotechnology  industries  are  characterized  by
rapidly  evolving  technology  and intense  competition.  Many  companies of all
sizes,  including major pharmaceutical  companies and specialized  biotechnology
companies,  are engaged in the development and  commercialization of therapeutic
agents designed for the treatment of the same diseases and disorders targeted by
the  Operating   Companies.   Many  of  the  competitors  of  the  Company  have
substantially  greater  financial  and  other  resources,  larger  research  and
development  staffs and more  experience  in the  regulatory  approval  process.
Moreover,  potential  competitors  have or may have patent or other  rights that
conflict  with patents  covering  technologies  of the Operating  Companies.  In
certain  circumstances,  it may be difficult or impossible for certain Operating
Companies to obtain appropriate licenses,  which would thereby hamper or prevent
the  commercialization  of their proposed  products.  The failure to obtain such
licenses  could  have a  material  adverse  affect on the  business,  results of
operations and financial  condition of such Operating  Companies,  which in turn
may have an adverse affect on the business,  results of operations and financial
condition of the Company.

     With  regard  to  Ansan,  the  Company  is aware  that  Alpha  Therapeutics
Corporation ("Alpha") is currently developing, alone and/or with a collaborative
partner,  through  technology  covered by certain  patents  held by  Perrine,  a
butyrate-related  treatment for blood disorders that would directly compete with
Ansan's Novaheme(TM)  product.  There can be no assurance that Novaheme(TM) will
prove to be more  efficacious in the treatment of blood  disorders than the drug
under  development by Alpha or that, in the event that  Novaheme(TM) is approved
for commercialization,  that Novaheme(TM) will gain wider market acceptance than
the  Alpha  product.  In  addition,  Novaheme(TM)  will  face  competition  from
hydroxyurea,  a therapeutic  agent currently  marketed for other indications and
which has just completed  clinical testing for the treatment of blood disorders.
Although Ansan believes that  hydroxyurea  will only have limited utility in the
treatment of hemoglobinopathies  since initial studies have shown it to be toxic
and, in certain animal models,  less effective than  Novaheme(TM)  at increasing
the  ex  vivo  expression  of  HbF  levels,  there  can  be  no  assurance  that
Novaheme(TM)  will  ultimately  prove to be more  efficacious  at treating blood
disorders than  hydroxyurea or that, in the event that  Novaheme(TM) is approved
for   commercialization,   that  it  will  gain  wider  market  acceptance  than
hydroxyurea.

     With regard to Ingenex,  the Company is aware of several  development stage
and established  enterprises  that are exploring the field of human gene therapy
or are  actively  engaged in research and  development  in the area of multidrug
resistance, including Genetix Pharmaceuticals, Inc. ("Genetix") and two research
organizations  receiving funding from the National Institutes of Health ("NIH").
There can be no assurance that Ingenex's MDRx1(TM) product will prove to be more
efficacious as a gene therapy than any gene therapy under development by Genetix
or either  of the two  research  organizations.  The  Company  is aware of other
commercial  entities  that have  produced  gene therapy  products  used in human
trials. Further, it is expected that competition in this field will intensify.

                                       26
<PAGE>

     With  regard to  Theracell,  the  Company is aware of several new drugs for
Parkinson's  disease  that are in  preclinical  and  clinical  development.  The
Company is aware that Amgen is pursuing clinical trials in Parkinson's  patients
with GDNF and is collaborating with Medtronics, Inc. in its delivery to the CNS.
In  addition,  the  Company is aware of several  well-funded  public and private
companies that are actively pursuing  alternative cell transplant  technologies,
including Somatix Therapy  Corporation  ("Somatix"),  CytoTherapeutics  Inc. and
Diacrin,  Inc. The technology under development by Diacrin,  Inc. involves using
antibodies to eliminate the need for immunosuppression  when transplanting fetal
pig  cells  into   Parkinson's   patients,   and  would  directly  compete  with
Spheramine(TM).  There  can be no  assurance  that  any of  the  products  under
development by Somatix,  CytoTherapeutics Inc. or Diacrin,  Inc., or which might
be developed by other  entities,  will not prove to be more  efficacious  in the
treatment  of  Parkinson's   disease  than  the  product  under  development  by
Theracell.

     With regard to ProNeura, the Company is aware of an implantable therapeutic
system being developed by Alza Corp. Additionally,  companies such as Medtronic,
Inc. are  developing  implantable  pumps that could be used to infuse drugs into
the CNS.

     With regard to Trilex,  the Company is aware of several companies  involved
in the  development of cancer  therapeutics  that target the same cancers as the
products under development by Trilex. Such companies include Progenics, Biomira,
AltaRex, Genentech, ImClone and Glaxo-Wellcome.

     In addition to the foregoing, colleges, universities, governmental agencies
and other public and private  research  organizations  are likely to continue to
conduct  research and are becoming more active in seeking patent  protection and
licensing arrangements to collect royalties for use of technology that they have
developed, some of which may be directly competitive with the technologies being
developed by the Company.  These  institutions  also compete with the Company in
recruiting   highly  qualified   scientific   personnel.   The  Company  expects
therapeutic  developments  in the areas of oncology and hematology to occur at a
rapid rate and  competition  to  intensify  as  advances in this field are made.
Accordingly,  the Company  will be  required  to continue to devote  substantial
resources and efforts to research and development activities.


Government Regulation

     The Operating  Companies  research and development  activities are, and the
production  and marketing of their  products will be,  subject to regulation for
safety and efficacy by numerous  governmental  authorities  in the United States
and other countries.  In the United States,  pharmaceutical products are subject
to rigorous FDA review.  The  Federal,  Food,  Drug,  and Cosmetic Act and other
federal  statutes and  regulations  govern or influence the  research,  testing,
manufacture, safety, labeling, storage, recordkeeping, approval, advertising and
promotion of such  products.  Noncompliance  with  applicable  requirements  can
result in fines, recall or seizure of products, refusal to permit products to be
imported into or exported out of the United States, refusal of the government to
approve  product  approval  applications  or to allow a  company  to enter  into
government supply contracts,  withdrawal of previously approved applications and
criminal prosecution.

      In order to obtain FDA  approval of a new drug, a company  generally  must
submit proof of purity,  potency,  safety and efficacy,  among  others.  In most
cases, such proof entails extensive  clinical and preclinical  laboratory tests.
The testing and preparation of necessary  applications is expensive and may take
several years to complete. There is no assurance that the FDA will act favorably
or quickly in reviewing submitted applications,  and significant difficulties or
costs may be encountered  by the Operating  Companies in their efforts to obtain
FDA  approvals,  which  difficulties  or costs could delay or preclude them from
marketing any products they may develop. The processing of those applications by
the FDA is a lengthy process and may also take several years. Any future failure
to obtain or delay in  obtaining  such  approvals  could  adversely  affect  the
ability of the Operating Companies to market their proposed products.  Moreover,
even if regulatory  approval is granted,  such approval may include  significant
limitations  on indicated  uses for which any such  products  could be marketed.
Further,  a marketed drug and its manufacturer are subject to continued  review,
and later discovery of previously unknown problems may result in restrictions on
such  product or  manufacturer,  including  withdrawal  of the product  from the
market.  In addition,  new government  regulations may be established that could
delay or prevent regulatory approval of the products under development.

     Among  the  conditions  for  clinical  studies  and  IND  approval  is  the
requirement   that  the   prospective   manufacturer's   quality   control   and
manufacturing  procedures conform to good manufacturing practices ("GMP"), which
must be followed at all times.  In complying  with  standards set forth in these
regulations,  manufacturers  must 


                                       27
<PAGE>

continue to expend time, monies and effort in the area of production and quality
control to ensure full technical compliance.

     The FDA  may  also  require  post-marketing  testing  and  surveillance  of
approved   products,   or  place  other  conditions  on  its  approvals.   These
requirements  could  cause  it to be more  difficult  or  expensive  to sell the
products,  and could  therefore  restrict the  commercial  applications  of such
products.  Product  approvals  may be withdrawn if  compliance  with  regulatory
standards is not maintained or if problems occur  following  initial  marketing.
With  respect  to  patented  products  or  technologies,  delays  imposed by the
governmental  approval process may materially reduce the period during which the
Company will have the exclusive right to exploit such technologies.

     The  procedure  for  obtaining  FDA approval to market a new drug  involves
several steps.  Initially,  the  manufacturer  must conduct  preclinical  animal
testing to demonstrate  that the product does not pose an  unreasonable  risk to
human subjects in clinical studies.  Upon completion of such animal testing,  an
IND must be  filed  with the FDA  before  clinical  studies  may  begin.  An IND
application  consists of,  among other  things,  information  about the proposed
clinical  trials.  Once the IND is  approved  (or if FDA fails to act  within 30
days), the clinical trials may begin.

     Human clinical trials on drugs are typically  conducted in three sequential
phases,  although the phases may overlap.  Phase I trials  typically  consist of
testing  the product in a small  number of healthy  volunteers  or in  patients,
primarily  for safety in one or more  doses.  During  Phase II, in  addition  to
safety,  the  efficacy  of the  product is  evaluated  in up to several  hundred
patients and  sometimes  more.  Phase III trials  typically  involve  additional
testing for safety and efficacy in an expanded  patient  population  at multiple
test sites.  The FDA may order the temporary or permanent  discontinuation  of a
clinical trial at any time.

     The  results  of the  preclinical  and  clinical  testing  on new drugs are
submitted  to the FDA in the  form of a new  drug  application  ("NDA")  for new
drugs. The NDA approval  process requires  substantial time and effort and there
can be no assurance  that any approval will be granted on a timely basis,  if at
all. The FDA may refuse to approve an NDA if applicable regulatory  requirements
are not satisfied. Product approvals, if granted, may be withdrawn if compliance
with regulatory  standards is not maintained or problems occur following initial
marketing.

     Under guidelines  established by NIH,  deliberate  transfers of recombinant
DNA into human subjects conducted within NIH laboratories or with NIH funds must
be approved by the NIH  Director.  The Director may approve a procedure if it is
determined  that no significant  risk to health or the environment is presented.
The NIH has established  the  Recombinant DNA Advisory  Committee (the "RAC") to
advise the NIH Director concerning approval of NIH-supported  research involving
the use of recombinant  DNA. A proposal will be considered by the RAC only after
the protocol has been approved by the investigator's  local Institutional Review
Board and other  committees.  Although the  jurisdiction of the NIH applies only
when  NIH-funded  research  or  facilities  are  involved  in any  aspect of the
protocol, the RAC encourages all gene transfer protocols to be submitted for its
review.  The Company  intends to comply with RAC and NIH guidelines even when it
may not be subject to them.

     There  can be no  assurance  that any  required  FDA or other  governmental
approval will be granted,  or if granted,  will not be  withdrawn.  Governmental
regulation  may prevent or  substantially  delay the  marketing of the Operating
Companies  proposed  products,  cause them to undertake  costly  procedures  and
furnish a competitive advantage to more substantially capitalized companies with
which they expect to compete.  In addition,  the extent of  potentially  adverse
government  regulations which might arise from future  administrative  action or
legislation cannot be predicted.

     The  Company  believes it is in  compliance  with all  material  applicable
regulatory requirements.


   Foreign Regulatory Issues

     Sales of pharmaceuticals  products outside the United States are subject to
foreign  regulatory  requirements  that vary  widely  from  country to  country.
Whether  or not FDA  approval  has been  obtained,  approval  of a product  by a
comparable  regulatory authority of a foreign country must generally be obtained
prior to the  commencement  of marketing in those  countries.  Although the time
required to obtain such approval may be longer or shorter than that required for
FDA approval,  the  requirements for FDA approval are among the most detailed in
the world and FDA  approval  generally  takes  longer  than  foreign  regulatory
approvals.

                                       28
<PAGE>


Employees


     The Company currently has ten full-time employees. Ingenex currently has 15
employees,  Theracell  currently has three  employees  and Trilex  currently has
seven employees.  ProNeura currently has no full-time  employees.  The Company's
future success depends in significant part upon the continued service of its key
scientific  personnel and executive officers,  as well as those of the Operating
Companies  and all of such  entities'  continuing  ability to attract and retain
highly  qualified  scientific and  managerial  personnel.  Competition  for such
personnel is intense and there can be no  assurance  that key  employees  can be
retained or that other highly qualified  technical and managerial  personnel can
be retained in the future.


     None of the  Company's  employees  is  represented  by a labor  union.  The
Company has not  experienced any work stoppages and considers its relations with
its employees to be good.


Facilities

     The  Company  has  a  four  year  lease,   expiring  in  April  2000,   for
approximately  3,800  square  feet of  office  space  in  South  San  Francisco,
California.  The  monthly  rental  payment is $ 6,185.  Ingenex has a three year
lease,  expiring in March 1999, for approximately 22,700 square feet of space in
Menlo Park, California that includes laboratories,  offices and warehouse space.
The base rent is $27,200 per month.  Theracell has a three year lease,  expiring
in August 1999, for approximately 1,900 square feet of space in Somerville,  New
Jersey,  at a monthly  rental  payment of $3,362.  Trilex has a five year lease,
expiring in August 2000,  for  approximately  3,600  square feet in  Scottsdale,
Arizona at a monthly rental payment of $6,788.


Legal Proceedings

     The Company is not involved in any material legal proceedings.



                                       29
<PAGE>

                                   MANAGEMENT

Executive Officers and Directors

      The  following  table  sets  forth the names,  ages and  positions  of the
executive officers and directors of the Company.


<TABLE>
<CAPTION>

                 Name                                      Age                 Position
                 -----                                     ---                  -------

<S>                                                        <C>    <C>                                               
Louis R. Bucalo, M.D.(1)...............................    38     President and Chief Executive Officer and Director
Sunil Bhonsle..........................................    46     Executive Vice President and Chief Operating Officer
Richard C. Allen, Ph.D.................................    52     Executive Vice President
Robert E. Farrell......................................    46     Executive Vice President and Chief Financial Officer
Michael K. Hsu(2) .....................................    46     Director
Hubert Huckel, M.D.(3) ................................    64     Director
Marvin E. Jaffe, M.D.(2) ..............................    60     Director
Lindsay A. Rosenwald, M.D.(1)(3) ......................    40     Director
Konrad M. Weis, Ph.D.(1) ..............................    67     Director
Kenneth J. Widder, M.D.(1)(3) .........................    42     Director
Ernst-Gunter Afting ...................................    53     Director
- --------

</TABLE>

(1)   Member of Executive Committee
(2)   Member of Audit Committee
(3)   Member of Compensation Committee

     LOUIS R. BUCALO,  M.D.,  is a co-founder  of the Company and of each of the
Operating  Companies  and  has  served  as the  Company's  President  and  Chief
Executive Officer since January 1993. Dr. Bucalo has served as a director of the
Company  since  March 1993.  Dr.  Bucalo also serves as Chairman of the Board of
each of the Operating  Companies and as Chairman and Chief Executive  Officer of
ProNeura.  From July 1990 to April 1992,  Dr. Bucalo was  Associate  Director of
Clinical Research at Genentech,  Inc., a biotechnology company. Dr. Bucalo holds
an M.D.  from  Stanford  University  and a B.A.  in  biochemistry  from  Harvard
University.

     SUNIL  BHONSLE  joined the Company as Executive  Vice  President  and Chief
Operating  Officer in September  1995. Mr. Bhonsle served in various  positions,
including  Vice  President  and  General  Manager,  Plasma  Supply and  Manager,
Inventory  and Technical  Planning,  at Bayer  Corporation  from July 1975 until
April 1995.  Mr.  Bhonsle holds an M.B.A.  from the  University of California at
Berkeley  and a B.Tech.  in chemical  engineering  from the Indian  Institute of
Technology.

     RICHARD C.  ALLEN,  PH.D.,  joined  the  Company  in August  1995.  He also
currently serves as President and Chief Executive Officer of Theracell, which he
joined in January 1995 and  President and Chief  Operating  Officer of ProNeura.
From June 1991 until  December  1994,  Dr. Allen was Vice  President and General
Manager  of  the  Neuroscience   Strategic   Business  Unit  of  Hoechst-Roussel
Pharmaceuticals,  Inc. Dr. Allen holds a Ph.D. in medicinal chemistry and a B.S.
in pharmacy from the Medical College of Virginia.

     ROBERT E. FARRELL  joined the Company as Executive Vice President and Chief
Financial  Officer in September 1996. Mr. Farrell was employed by Fresenius USA,
Inc.  ("Fresenius")  from 1991  until  August  1996  where he served in  various
capacities, including Vice President Administration, Chief Financial Officer and
General Counsel. His last position was Corporate Group Vice President.

     MICHAEL K. HSU has served as a director  of the  Company  since March 1993.
Mr. Hsu is President of  Biotechnology  Venture Capital  Representative  for the
government  of Taiwan.  From  November  1994 through  October 1995, he served as
Director --  Corporate  Finance of Coleman and Company  Securities.  Since March
1989,  Mr. Hsu has served as  President  of APS  Bioventures  Co.,  which  until
November  1994 was an investment  banking  division of RAS  Securities.  Mr. Hsu
previously held various executive positions with Steinberg and Lyman Health Care
Company, Ventana Venture Growth Fund, Asian Pacific Venture Group (Thailand) and
D. Blech Company.

     HUBERT  HUCKEL,  M.D. has served as a director of the Company since October
1995.  From 1964 until his  retirement  in December  1992,  Dr. Huckel served in
various positions with The Hoechst Group. At the time of his 


                                       30
<PAGE>


retirement,  he was  chairman of the Board of  Hoechst-Roussel  Pharmaceuticals,
Inc., Chairman and President of Hoechst-Roussel Agri-Vet Company and a member of
the Executive Committee of Hoechst Celanese Corporation.  He currently serves on
the Board of Directors of Royce Laboratories, Inc. and Sano Corporation.

     MARVIN E. JAFFE, M.D. has served as a director of the Company since October
1995. From 1988 until April 1994, Dr. Jaffe served as President of R.W.  Johnson
Pharmaceutical  Research Institute where he was responsible for the research and
development  activities  in support of a number of Johnson & Johnson  companies,
including ORTHO-McNeil Pharmaceuticals, ORTHO Biotech and CILAG. From 1970 until
1988,  he was Senior  Vice  President  of the Merck  Research  Laboratories.  He
currently   serves  on  the  Board  of  Directors  of   Chiroscience,   plc  and
Immunomedics, Inc.

     LINDSAY A.  ROSENWALD,  M.D., is a co-founder of the Company and has served
as a  director  of the  Company  since  March  1993.  Dr.  Rosenwald  co-founded
Interneuron Pharmaceuticals,  Inc. and has served as its Chairman since February
1989.  Dr.  Rosenwald  has been the Chairman and  President of The Castle Group,
Ltd., a New York medical venture capital firm ("Castle"), since October 1991 and
the Chairman and President of Paramount  Capital,  Inc.,  an investment  banking
firm, since February 1992. In June 1994, Dr.  Rosenwald  founded Aries Financial
Services,  Inc., a money  management  firm  specializing  in the health sciences
industry.  From 1987 to September 1991, Dr.  Rosenwald was a Managing  Director,
Corporate  Finance at D.H. Blair & Co., Inc. Dr. Rosenwald also is a director of
the following  publicly-traded  pharmaceutical  biotechnology companies:  Ansan,
Inc., Avigen, Inc., Atlantic  Pharmaceuticals,  Inc., BioCryst  Pharmaceuticals,
Inc.,   Neose   Technologies,   Inc.,   Sparta   Pharmaceuticals,   Inc.,  VimRx
Pharmaceuticals,  Inc.  and  Xenometrix,  Inc.  and is a director of a number of
privately-held   companies   founded   by   Castle  in  the   biotechnology   or
pharmaceutical fields.

     KONRAD M. WEIS,  PH.D., has served as a director of the Company since March
1993.  Dr. Weis is Honorary  Chairman and former  President and Chief  Executive
Officer  of Bayer  Corporation.  Dr.  Weis  serves as a  director  of PNC Equity
Management Company, Michael Baker Company, and Dravo Company.

     KENNETH J. WIDDER, M.D. has served as a director of the Company since March
1993.  Dr.  Widder  is  Chairman  and  Chief  Executive   Officer  of  Molecular
Biosystems,  Inc.  Dr.  Widder  serves on the  Board of  Directors  of  Wilshire
Technologies, Inc. and Digivision.

     ERNST-GUNTER  AFTING,  M.D., PH.D., has served as a director of the Company
since May 1996.  Dr.  Afting has  served as the  President  of the  GSF-National
Center for Environment and Health, a government research center in Germany since
1995. From 1984 until 1995, he was employed in various capacities by the Hoechst
Group, serving as Divisional Head of the Pharmaceuticals Division of the Hoechst
Group from 1991 to 1993 and as President and Chief Executive  Officer of Roussel
Uclaf (a majority stockholder of Hoechst AG) in Paris from 1993 until 1995.

     Directors serve until the next annual meeting or until their successors are
elected  and  qualified.  Officers  serve  at the  discretion  of the  Board  of
Directors,  subject  to rights,  if any,  under  contracts  of  employment.  See
"Management -- Employment Agreements."

Management of the Operating Companies

  Ansan

     S.  Mark  Moran,  M.D.  (47) has  served  as  Ansan's  President  and Chief
Executive  Officer and a director since April 1995.  Prior to joining Ansan, Dr.
Moran was employed by  Glycomed,  Inc. a  biopharmaceutical  company in Alameda,
California,  serving as Vice  President-Operations from July 1994 to April 1995,
and Vice  President-Medical  Affairs from  October  1991 to June 1994.  Prior to
joining Glycomed, Dr. Moran was employed for more than five years by G.D. Searle
& Co., in positions of increasing  responsibility.  Dr. Moran holds an M.D. from
Washington University School of Medicine,  and M.B.A. from the Kellogg School of
Management  at  Northwestern  University  and a B.S.  in  Mathematics  from  the
University of Oklahoma.

     Ingenex

     Mark E.  Furth,  Ph.D.  (44) has  served as  Ingenex'  President  and Chief
Executive Officer since August 1995. From May 1993 to August 1995, Dr. Furth was
Vice President-Molecular  Sciences, of Glaxo Wellcome, Inc. From January 1992 to
May 1993, Dr. Furth was Vice President-Technology, of Regeneron Pharmaceuticals,
Inc.  From July 1988 to January 1992,  Dr. Furth was Program  Director-Molecular
and Cell Biology of Regeneron


                                       31
<PAGE>


Pharmaceuticals,  Inc.  From  January  1987 to July 1988.  Dr. Furth was Program
Director-Diagnostics  of  Oncogene  Science,  Inc.  Dr.  Furth was an  assistant
professor of Medicine at the Sloan Kettering  Division of the Cornell University
Graduate  School  of  Medicine,  and  held  postgraduate  fellowships  with  the
Laboratory of Tumor Virus Genetics, Bethesda, Maryland, and the Medical Research
Council Laboratory of Molecular Biology,  Cambridge,  England. Dr. Furth holds a
Ph.D. in Molecular Biology from the University of  Wisconsin-Madison  and a B.A.
in Biochemical Sciences from Harvard University.

     Theracell

     Victor  J.  Bauer,  Ph.D.  (61) has  served  as  Chairman  of the  Board of
Theracell  since April 1995.  From 1971 until his  retirement in 1992, Dr. Bauer
served in various executive  capacities with Hoeschst  Pharmaceuticals,  Inc., a
subsidiary of Hoechst  Celanese  Corp.,  serving last as President  from 1989 to
1992.  Dr. Bauer holds a Ph.D. in Chemistry from the University of Wisconsin and
served as a Research Fellow at Harvard University.

     As stated above,  Richard C. Allen serves as President and Chief  Executive
Officer of Theracell.

   ProNeura

     As stated above, Louis R. Bucalo and Richard C. Allen serve as Chairman and
Chief Executive Officer and President and Chief Operating Officer, respectively,
of ProNeura.


     Trilex

     Edward L. Jacobs (50) has served as President and Chief  Executive  Officer
of Trilex since its inception in May 1996.  Prior thereto,  Mr. Jacobs served as
President and Chief Executive  Officer of Ascalon,  Inc. (from 1994 -- 1995) and
Senmed  Medical  Ventures  (from 1993 -- 1995).  From 1990 to 1993,  Mr.  Jacobs
served as Vice  President and General  Manager of the Oncology  Service Group of
Syncor International,  Inc. From 1986 until 1990, he served as Vice President --
Marketing and Sales of NeoRx Corporation, a monoclonal-based imaging and therapy
products company.


Board Committees and Designated Directors

      The  Board  of  Directors  has  an  Executive  Committee,  a  Compensation
Committee  and an Audit  Committee.  The Executive  Committee  exercises all the
power and  authority of the Board of Directors in the  management of the Company
between  Board  meetings,  to the  extent  permitted  by law.  The  Compensation
Committee makes  recommendations to the Board concerning  salaries and incentive
compensation  for officers and employees of the Company and may  administer  the
Company's  1995 Stock Option Plan.  See  "Management -- Stock Option Plans." The
Audit Committee  reviews the results and scope of the audit and other accounting
related matters.

      The Company has agreed,  if requested by Blair,  to nominate a designee of
Blair to the  Company's  Board of  Directors  for a period of five years  ending
January 18, 2001.


Director Compensation

     Non-employee  directors  are entitled to receive  $2,000 for each Board and
committee  meeting  attended and are  reimbursed for their expenses in attending
such meetings. Directors are not precluded from serving the Company in any other
capacity  and  receiving  compensation  therefor.  In  addition,  directors  are
entitled to receive options ("Director  Options") pursuant to the Company's 1995
Stock  Option  Plan.  Director  Options  are  exercisable  in four equal  annual
installments commencing six months from the date of grant and expire the earlier
of 10 years  after  the date of grant or 90 days  after the  termination  of the
director's  service  on the Board of  Directors.  In January  1996,  each of the
Company's  current  directors other than Dr. Afting received Director Options to
purchase  10,000 shares of Common Stock at an exercise price of $5.00 per share.
Dr. Afting received  Director  Options to purchase 10,000 shares of Common Stock
at an exercise price of $8.50 per share when he joined the Board of Directors in
May 1996. See "Management -- Stock Option Plans."


Scientific Advisors

     Since the Company's inception, the Company has sought the advisory services
of a number of scientists,  researchers and clinicians with extensive experience
in  each  of the  Operating  Companies'  fields  of  interest  (the  "Scientific
Advisors").  The Scientific Advisors have assisted the Company and the Operating
Companies in


                                       32
<PAGE>


identifying scientific and product development  opportunities,  in reviewing and
evaluating with management the progress of research programs,  and in recruiting
and evaluating scientists and other employees.


Executive Compensation

     The  following  summary   compensation   table  sets  forth  the  aggregate
compensation  paid or accrued by the Company to the Chief Executive  Officer and
to executive officers whose annual compensation exceeded $100,000 for the fiscal
year ended December 31, 1995 (collectively,  the "named executive officers") for
services during the fiscal years ended December 31, 1995, 1994 and 1993:

<TABLE>
<CAPTION>

                           Summary Compensation Table
                                                                                                 Annual Compensation
                    Compensation Name                                              ----------------------------------------------
                 and Principal Position                                            Year               Salary                Bonus
                     ---------------                                               ----             ----------             ------
<S>                                                                                 <C>              <C>                       <C>
Louis R. Bucalo................................................................     1995             $188,000(1)           $     0
    President and Chief Executive Officer......................................     1994             $206,000              $35,000
                                                                                    1993             $144,000              $     0
Richard C. Allen...............................................................     1995             $166,000              $     0
      Executive Vice President(2)..............................................     1994             $      0              $     0
                                                                                    1993             $      0              $     0
</TABLE>

- --------


(1)  A portion of the cash  compensation  paid to Dr. Bucalo is allocable to the
     Operating  Companies pursuant to management services  arrangements  between
     them and the Company. See "Certain Transactions."
(2)  Dr. Allen also serves as President and Chief Executive Officer of Theracell
     and President and Chief Operating  Officer of ProNeura.  Dr. Allen receives
     his entire salary from Theracell which he joined in January 1995.

      On April 19, 1996, the  Compensation  Committee agreed to grant Dr. Bucalo
and Dr.  Allen a cash bonus of $42,000  and  $15,500,  respectively,  payment of
which will be deferred  (with  interest at the rate of prime plus 1%  commencing
May 1, 1996) until such time, if ever, as one-half of the Warrants issued in the
IPO have been exercised.


                        Option Grants in Last Fiscal Year

      The  following  table  contains  information  concerning  the stock option
grants  made to the named  executive  officers  during  the  fiscal  year  ended
December  31,  1995.  No  stock  appreciation   rights  were  granted  to  these
individuals during such year.

<TABLE>
<CAPTION>
                                                                                          Individual Grant Securities
                                                              Number of       ----------------------------------------------------
                                                            Underlying          % of Total
                                                              Options         Options Granted       Exercise or
                                                              Granted         to Employees in       Base Price          Expiration
                      Name                                    (#)(1)            Fiscal Year         ($/Sh) (2)             Date
                      ----                                    ------            -----------           -------             -------
<S>                                                           <C>                  <C>               <C>                  <C>     
Louis R. Bucalo............................................      -0-                -0-                   -0-                 N/A
Richard C. Allen...........................................   57,906               26.5%             $   1.35             8/1/2005

</TABLE>

- ----------
(1)   Each of the options  listed in the table is immediately  exercisable.  The
      shares purchasable thereunder are subject to the repurchase by the Company
      at the  original  exercise  price  paid  per  share  upon  the  optionee's
      cessation of service prior to the fourth  anniversary  of the option grant
      of such shares.  Such repurchase right lapsed with respect to 7,721 shares
      on August 1, 1995 and will lapse with  respect to 10,037 of such shares on
      August  1,  1996  and  1/48th  of  the  balance  of  such  shares  at  the
      commencement of each of the first 48 months commencing September 1996.
(2)   The exercise  price may be paid in cash,  in shares of Common Stock valued
      at the fair  market  value on the  exercise  date or  through  a  cashless
      exercise  procedure  involving a same-day sale of the purchase shares. The
      Company  may also  finance the option  exercise  by loaning  the  optionee
      sufficient  funds to pay the  exercise  price  for the  purchased  shares,
      together with any federal and state income tax  liability  incurred by the
      optionee in connection with such exercise.





                                       33
<PAGE>


Aggregate Option Exercises in Last Fiscal Year and Fiscal Year-End Option Values

      The following table sets forth information concerning option exercises and
option  holdings for the fiscal year ended December 31, 1995 with respect to the
named executive  officers.  No stock  appreciation  rights were exercised during
such year or were outstanding at the end of that year.

<TABLE>
<CAPTION>
                                                                    Number of Securities                       Value of
                                                                   Underlying Unexercised              Unexercised in-the-Money
                                               Shares               Options at FY-End (#)                Options at FY-End(1)
                                              Acquired         -----------------------------        -----------------------------
                Name                       on Exercise(#)      Exercisable   Unexercisable(2)       Exercisable   Unexercisable(2)
                ----                       -------------       -----------   ---------------        -----------   ----------------
<S>                                              <C>             <C>               <C>                 <C>             <C>     
Louis R. Bucalo...........................       -0-             37,471            44,248              $161,500        $190,864
Richard C. Allen..........................       -0-              7,721            50,185              $ 27,410        $178,157

</TABLE>

- --------

(1)  Based on the fair market value of the  Company's  Common Stock at year-end,
     $4.90 per share (as determined by the Company's  Board of Directors),  less
     the exercise price payable for such shares.
(2)  Options are  immediately  exercisable  for all the option shares;  however,
     since a portion of the shares  purchasable upon exercise of the options are
     subject to  repurchase  by the Company at the original  exercise  price per
     share upon the  optionee's  cessation  of service,  such options are deemed
     unexercisable  for purposes of this table.  As of September  30, 1996,  the
     repurchase right has lapsed as to 71,394 of such shares.


Employment Agreements

     The Company is a party to employment  agreements  with each of Dr.  Bucalo,
Sunil  Bhonsle,  Executive  Vice  President and Chief  Operating  Officer of the
Company,  Richard C. Allen,  Executive Vice President of the Company, and Robert
E. Farrell, Executive Vice President and Chief Financial Officer of the Company.
All of the agreements contain confidentiality provisions.

      The agreement  with Dr. Bucalo expires in February 1999 and provides for a
current base annual  salary of $210,000,  subject to annual  increases of 5% and
bonuses of up to 20% at the  discretion of the Board of Directors.  In the event
of the  termination  of the agreement  with Dr.  Bucalo,  other than for reasons
specified therein,  the Company is obligated to make severance payments equal to
his  base  annual  salary  for the  greater  of the  balance  of the term of the
agreement or 18 months.

      Dr. Allen receives no salary from the Company (his primary compensation is
from  Theracell) but has been granted certain stock options which vest over five
years if he remains employed by the Company.

      The  agreement  with Mr.  Bhonsle  provides  for a base  annual  salary of
$185,000  subject to  automatic  annual  increases,  based on  increases  in the
consumer price index, and bonuses of up to 20% at the discretion of the Board of
Directors.  In the event Mr.  Bhonsle's  employment is terminated other than for
"good cause" (as defined),  the Company is obligated to make severance  payments
equal to his base annual salary for between six and nine months. Mr. Bhonsle has
also been  granted  certain  options  that vest  over five  years if he  remains
employed by the Company.

      The  agreement  with Mr.  Farrell  provides  for a base  annual  salary of
$185,000  subject to  automatic  annual  increases,  based on  increases  in the
consumer price index, and bonuses of up to 20% at the discretion of the Board of
Directors.  In the event Mr.  Farrell's  employment is terminated other than for
"good cause" (as defined),  the Company is obligated to make severance  payments
equal to his base annual salary for between six and nine months. Mr. Farrell has
also been  granted  certain  options  that vest  over five  years if he  remains
employed by the Company.

      The Company has agreed with Blair that  notwithstanding  the provisions of
the foregoing employment agreements,  the compensation of the executive officers
who were  employed  at the time of the  Company's  initial  public  offering  in
January 1996 will not increase from current levels prior to February 23, 1997.


Stock Option Plans

   The 1995 Stock Option Plan

      In  October  1995,  the  Board  of  Directors  adopted  and the  Company's
stockholders  approved,  the 1995 Stock Option Plan (the "1995 Plan"), which was
subsequently  amended to cover 1,300,000  shares of the Company's  Common Stock.
Employees,  officers  and  directors  of, and  consultants  or advisers  to, the
Company and any subsidiary  corporations are eligible to receive incentive stock
options ("incentive  options") within the meaning of Section 422 



                                       34

<PAGE>

of the Internal  Revenue Code of 1986,  as amended (the "Code")  and/or  options
that do not qualify as incentive  options  ("non-qualified  options").  The 1995
Plan, which expires in October 2005, is currently  administered by the Company's
Compensation  Committee but may also be  administered by the Board of Directors.
The purposes of the 1995 Plan are to ensure the retention of existing  executive
personnel, key employees,  directors,  consultants and advisors who are expected
to  contribute  to the  Company's  future  growth  and  success  and to  provide
additional  incentive by  permitting  such  individuals  to  participate  in the
ownership  of the  Company,  and the  criteria  to be  utilized  by the Board of
Directors or the committee in granting options pursuant to the 1995 Plan will be
consistent with these purposes.  The 1995 Plan provides for automatic  grants of
options to certain directors in the manner set forth below.

     Options  granted  under the 1995 Plan may be either  incentive  options  or
non-qualified  options.  Incentive  options  granted  under  the  1995  Plan are
exercisable for a period of up to 10 years from the date of grant at an exercise
price  which is not less than the fair market  value of the Common  Stock on the
date of the grant, except that the term of an incentive option granted under the
1995 Plan to a stockholder  owning more than 10% of the outstanding voting power
may not exceed  five years and its  exercise  price may not be less than 110% of
the fair  market  value of the  Common  Stock on the date of the  grant.  To the
extent that the  aggregate  fair market value,  as of the date of grant,  of the
shares for which incentive  options become  exercisable for the first time by an
optionee during the calendar year exceeds  $100,000,  the portion of such option
which is in excess of the $100,000 limitation will be treated as a non-qualified
option. Options granted under the 1995 Plan to officers,  directors or employees
of the Company may be exercised  only while the optionee is employed or retained
by the Company or within 90 days of the date of  termination  of the  employment
relationship or directorship. However, options which are exercisable at the time
of termination by reason of death or permanent disability of the optionee may be
exercised  within  12  months  of the  date  of  termination  of the  employment
relationship  or  directorship.  Upon the exercise of an option,  payment may be
made by cash or by any other means that the Board of Directors or the  committee
determines. No option may be granted under the 1995 Plan after October 2005.

     Options may be granted only to such  employees,  officers and directors of,
and consultants and advisors to, the Company or any subsidiary of the Company as
the Board of  Directors or the  committee  shall select from time to time in its
sole discretion,  provided that only employees of the Company or a subsidiary of
the Company shall be eligible to receive incentive  options.  An optionee may be
granted more than one option under the 1995 Plan.  The Board of Directors or the
committee will, in its discretion,  determine  (subject to the terms of the 1995
Plan) who will be granted  options,  the time or times at which options shall be
granted,  and the number of shares  subject to each option,  whether the options
are incentive options or non-qualified  options, and the manner in which options
may be exercised.  In making such  determination,  consideration may be given to
the value of the services rendered by the respective individuals,  their present
and potential  contributions  to the success of the Company and its subsidiaries
and such other factors deemed relevant in accomplishing  the purpose of the 1995
Plan.

      At November 25, 1996, options to purchase an aggregate of 1,075,635 shares
are outstanding under the 1995 Plan.

     The  provisions  of the  1995  Plan  provide  for the  automatic  grant  of
non-qualified  stock  options  to  purchase  shares of Common  Stock  ("Director
Options") to directors of the Company who are not employees or principal  (i.e.,
10%) stockholders of the Company ("Eligible  Directors").  Eligible Directors of
the  Company  will be granted a Director  Option to  purchase  10,000  shares of
Common  Stock upon joining the Board (an "Initial  Director  Option").  Further,
commencing on the day  immediately  following the date of the annual  meeting of
stockholders  for the  Company's  fiscal year ending  December  31,  1996,  each
Eligible Director,  other than directors who received an Initial Director Option
since the last  annual  meeting,  will be granted a Director  Option to purchase
2,000 shares of Common Stock on the day  immediately  following the date of each
annual  meeting of  stockholders,  as long as such  director  is a member of the
Board of  Directors.  The  exercise  price for each share  subject to a Director
Option  shall be equal to the fair market  value of the Common Stock on the date
of grant.  Director  Options are exercisable in four equal annual  installments,
commencing  six  months  from the date of grant.  Director  Options  expire  the
earlier of 10 years after the date of grant or 90 days after the  termination of
the director's service on the Board of Directors.


   The 1993 Stock Option Plan

     In 1993,  the Company  adopted a stock  option plan which was  subsequently
amended and restated (the "1993 Plan").  The 1993 Plan provided for the issuance
of 558,073  shares of Common  Stock to eligible  participants.  At November  25,
1996,  options to purchase 321,671 shares of Common Stock are outstanding  under
the 1993 Plan,  



                                       35




<PAGE>

which options are  exercisable  at prices  ranging from $.59 to $1.35 per share.
The Company  has agreed with the  Underwriter  not to grant  additional  options
under the 1993 Plan.


Limitation of Liability and Indemnification Matters

     The  Company's   Certificate   of   Incorporation   eliminates  in  certain
circumstances the liability of directors of the Company for monetary damages for
breach of their  fiduciary duty as directors.  This provision does not eliminate
the liability of a director (i) for breach of the director's  duty of loyalty to
the Company or its stockholders,  (ii) for acts or omissions by the director not
in good faith or which involve intentional  misconduct or a knowing violation of
law, (iii) for willful or negligent  declaration of an unlawful dividend,  stock
purchase or redemption, or (iv) for transactions from which the director derived
an improper personal  benefit.  Such limitation of liability does not affect the
availability of equitable remedies such as injunctive relief or rescission.

     The Company believes that it is the position of the Securities and Exchange
Commission  that insofar as the  foregoing  provision may be invoked to disclaim
liability for damages arising under the Securities Act, the provision is against
public policy as expressed in the Securities Act and is therefore unenforceable.
Such limitation of liability also does not affect the  availability of equitable
remedies such as injunctive relief of recession.

     The Company has entered into indemnification  agreements  ("Indemnification
Agreement(s)")   with   each  of  its   directors   and   officers.   Each  such
Indemnification   Agreement   provides  that  the  Company  will  indemnify  the
indemnitee against expenses,  including reasonable  attorneys' fees,  judgments,
penalties, fines and amounts paid in settlement actually and reasonably incurred
by him in  connection  with  any  civil or  criminal  action  or  administrative
proceeding  arising  out of his  performance  of his  duties  as a  director  or
officer,  other than an action  instituted  by the  director  or  officer.  Such
indemnification will be available if the indemnitee acted in good faith and in a
matter he reasonably  believed to be in or not opposed to the best  interests of
the Company,  and, with respect to any criminal action,  had no reasonable cause
to believe his conduct was unlawful. The Indemnification Agreements also require
that the Company  indemnify  the director or other party thereto in all cases to
the fullest extent permitted by applicable law. Each  Indemnification  Agreement
permits  the  director  or officer  that is party  thereto to bring suit to seek
recovery or amounts due under the  Indemnification  Agreement and to recover the
expenses of such a suit if he is successful.

     The  Company's  By-laws  provide  that  the  Company  shall  indemnify  its
directors,  officers,  employees  or agents to the full extent  permitted by the
Delaware  General  Corporation  Law,  and the  Company  shall  have the right to
purchase and maintain  insurance on behalf of any such person whether or not the
Company would have the power to indemnify such person against the liability. The
Company  currently  maintains  such an insurance  policy on behalf on any of its
directors, officers, employees or agents.

     At  present,  there is no pending  litigation  or  proceeding  involving  a
director,  officer,  employee or agent of the Company where indemnification will
be required or permitted.  The Company is not aware of any threatened litigation
or proceeding which may result in a claim for indemnification.








                                       36
<PAGE>


                              CERTAIN TRANSACTIONS

     In March and April 1993,  the Company  borrowed an aggregate of  $1,200,000
from  Venturetek,  L.P.  and Dr.  Lindsay A.  Rosenwald,  the  co-founder  and a
director of the Company. See "Principal Shareholders." The loan was evidenced by
10% promissory notes payable on demand.  The lenders received warrants which are
currently  exercisable  to purchase an aggregate of 13,327 and 20,355  shares of
Common Stock,  respectively,  at an exercise  price of $4.50 per share.  In June
1995, the notes, together with accrued interest, were cancelled in consideration
of the  issuance to  Venturetek  L.P.  and Dr.  Rosenwald  of shares of Series A
Preferred Stock which subsequently  converted into 151,388 and 215,135 shares of
Common Stock, respectively.

     In April and May 1993,  Dr.  Rosenwald  made  loans to the  Company  in the
aggregate principal amount of $1,014,000.  Such loans were repaid, together with
accrued  interest at the rate of 7% per annum,  from the proceeds of the private
placement of Series A Preferred Stock described below.

     Between July and November 1993, Paramount Capital, Inc. ("Paramount") acted
as placement agent in connection with the Company's  private placement of Series
A Preferred Stock.  Paramount received  $1,729,575 in commissions and a $576,525
expense allowance in consideration for its services.  In addition,  designees of
Paramount  received  warrants to purchase Series A Preferred Stock in connection
with the private  placement  which currently  represent  warrants to purchase an
aggregate of 460,076 shares of Common Stock  exercisable at $4.50 per share. Dr.
Rosenwald,  a director of the Company,  serves as the  President and Chairman of
Paramount.   Dr.  Rosenwald   received  warrants  to  purchase  221,221  of  the
aforementioned shares of Common Stock.

     In January  1995,  the  Company  agreed to issue  warrants  to  purchase an
aggregate  of 7,395  shares of Common  Stock at an  exercise  price of $3.25 per
share to Ray Dirks  Research  ("RDR") or its designees for services  rendered in
connection with a license  transaction.  Michael Hsu, a director of the Company,
serves as a consultant to RDR and received one-half of such warrants.

     In February 1995, Paramount acted as placement agent in connection with the
Company's  private  placement of Series B Preferred  Stock.  Paramount  received
$103,125 in commissions and a $45,375 expense allowance for services rendered in
connection  with such private  placement.  In  addition,  designees of Paramount
received  Series B Preferred Stock purchase  warrants which currently  represent
warrants  to  purchase  an  aggregate  of 46,350  shares  of Common  Stock at an
exercise price of $3.92 per share. Dr. Rosenwald  received  warrants to purchase
17,961 of such shares.

     Between August and October 1995, The Aries Domestic Fund L.P. and The Aries
Trust loaned the Company an aggregate  of $250,000  evidenced by the  promissory
notes (the  "Investor  Notes")  which bore interest at the rate of 12% per annum
and were payable on the earlier of the closing of an initial public  offering or
one year  from  the date of  issuance.  In  accordance  with  their  terms,  the
principal  amount of the Investor  Notes was converted  into $250,000  principal
amount of 10% promissory notes (the "Bridge Notes") and 125,000 Class A Warrants
as part of a bridge financing completed in October 1995. Accrued interest on the
Investor  Notes was repaid in January,  1996.  Repayment  of the  principal  and
accrued  interest on the Bridge Notes was made upon  completion of the Company's
initial public  offering in January 1996. Dr.  Rosenwald is the President of the
general partner of The Aries Domestic Fund L.P. and serves as investment manager
for The Aries Trust.

     The Company believes that all of the transactions set forth above were made
on terms no less  favorable  to the Company than could have been  obtained  from
unaffiliated  third  parties.  The  Company has adopted a policy that all future
transactions,  including loans, between the Company and its officers, directors,
principal  shareholders  and their  affiliates will be approved by a majority of
the  Board  of  Directors,   including  a  majority  of  the   independent   and
disinterested outside directors on the Board of Directors,  and will continue to
be on terms no less  favorable  to the  Company  than  could  be  obtained  from
unaffiliated third parties.





                                       37
<PAGE>


                             PRINCIPAL STOCKHOLDERS

     The  following  table  sets  forth,  as  of  November  22,  1996,   certain
information concerning the beneficial ownership of the Company's Common Stock by
(i) each stockholder  known by the Company to own  beneficially  five percent or
more of the outstanding Common Stock of the Company;  (ii) each director;  (iii)
each  executive  officer of the  Company;  and (iv) all  executive  officers and
directors of the Company as a group, and their  percentage  ownership and voting
power.

<TABLE>
<CAPTION>
                                                                                    Shares Beneficially         Percent of Shares
           Name and Address of Beneficial Owner (1)                                      Owned (2)             Beneficially Owned
           ----------------------------------------                                      ---------             ------------------
<S>                                                                                      <C>                          <C>  
Louis R. Bucalo, M.D...........................................................          338,172(3)                   2.72%
Ernst-Gunter Afting............................................................                0                        *
Richard C. Allen Ph.D..........................................................           63,775(4)                     *
Sunil Bhonsle..................................................................          132,913(5)                   1.07
Robert E. Farrell..............................................................                0                        *
Michael K. Hsu.................................................................           22,346(6)                     *
Hubert Huckel, M.D.............................................................            2,500(7)                     *
Marvin E. Jaffe, M.D...........................................................            2,500(7)                     *
Lindsay A. Rosenwald, M.D......................................................          660,034(8)                   5.24
Konrad M. Weis, Ph.D...........................................................           51,852(9)                     *
Kenneth J. Widder, M.D.........................................................           15,237(9)                     *
Invesco Trust Company..........................................................        1,220,538(10)                  9.91
    7800 E. Union Avenue
    Denver, CO 80237
All executive officers and directors as a group (11) persons...................        1,289,329(11)                  9.93%

</TABLE>

- --------

*    Less than one percent.
(1)  Unless  otherwise  indicated,  the address of such  individual is c/o Titan
     Pharmaceuticals,  Inc.,  400 Oyster Point  Boulevard,  Suite 505, South San
     Francisco, California 94080.
(2)  In computing  the number of shares  beneficially  owned by a person and the
     percentage  ownership  of a person,  shares of Common  Stock of the Company
     subject to options held by that person that are  currently  exercisable  or
     exercisable within 60 days are deemed  outstanding.  Such shares,  however,
     are not  deemed  outstanding  for  purposes  of  computing  the  percentage
     ownership of each other  person.  Except as  indicated in the  footnotes to
     this table and pursuant to applicable  community property laws, the persons
     named in the table have sole voting and  investment  power with  respect to
     all shares of Common Stock.
(3)  Includes  127,943  shares  issuable upon exercise of  outstanding  options.
     28,506 of such shares are subject to (i) obtaining  stockholder approval of
     an increase in the number of shares  reserved for  issuance  under the 1995
     Stock Option Plan and (ii) if such approval is obtained,  repurchase by the
     Company upon the occurrence of certain events.
(4)  Represents shares issuable upon exercise of outstanding  options.  3,871 of
     such  shares  are  subject  to (i)  obtaining  stockholder  approval  of an
     increase in the number of shares reserved for issuance under the 1995 Stock
     Option  Plan and  (ii) if such  approval  is  obtained,  repurchase  by the
     Company upon the occurrence of certain events.
(5)  Represents shares issuable upon exercise of outstanding options.  10,945 of
     such  shares  are  subject  to (i)  obtaining  stockholder  approval  of an
     increase in the number of shares reserved for issuance under the 1995 Stock
     Option  Plan and  (ii) if such  approval  is  obtained,  repurchase  by the
     Company upon the occurrence of certain events.
(6)  Includes 11,314 shares issuable upon exercise of outstanding options.
(7)  Represents shares issuable upon exercise of outstanding options.
(8)  Includes (i) 90,084  shares held by entities  owned by Mr.  Rosenwald,  and
     (ii) 267,154  shares  issuable  upon  exercise of  outstanding  options and
     warrants.  Does not include (i) 94,589 shares held by his wife; (ii) 40,536
     shares held by his wife in trust for the benefit of their  children;  (iii)
     585,718  shares held by or underlying  warrants held by Venturetek  L.P., a
     limited partnership,  the limited partners of which include Dr. Rosenwald's
     wife and children;  or (iv) shares  underlying Class A Warrants held by The
     Aries  Trust and The Aries  Domestic  Fund L.P.  as to which Dr.  Rosenwald
     serves  as  investment  manager  and  President  of  the  general  partner,
     respectively.  Dr. Rosenwald  disclaims  beneficial  ownership as to all of
     such shares. See "Certain Transactions."
(9)  Includes 7,617 shares issuable upon exercise of outstanding options.
(10) Represents  shares  held by three  mutual  funds  managed by Invesco  Funds
     Group, Inc. or Invesco Trust Company.
(11) See Notes (3) through (9) above.



                                       38
<PAGE>


                             SELLING SECURITYHOLDERS

   
     An  aggregate of up to 1,445,752  Warrants and  1,445,752  shares of Common
Stock  issuable  upon  exercise  of such  Warrants  (collectively,  the  "Bridge
Financing  Securities")  may be  offered  for  resale  by the  Bridge  Financing
Investors who received their  Warrants in exchange for warrants  received in the
Bridge Financing and continue to hold such securities.
    

     An aggregate of up to 1,536,000 Units  comprised of 1,536,000  Warrants and
1,536,000 shares of Common Stock issuable and an additional  1,536,000 shares of
Common Stock issuable upon exercise of such Warrants (collectively, the "Private
Placement Securities") may be offered for resale by investors who received their
Units in the  Private  Placement.  The  components  of the Units are  separately
transferable.

     The  following  table set forth  certain  information  with respect to each
Bridge  Financing  Investor  and each  Private  Placement  Investor for whom the
Company is registering securities for resale to the public. The Company will not
receive any of the proceeds from the sale of such  securities.  Upon exercise of
the  Warrants  held by the Bridge  Financing  Investors  and  Private  Placement
Investors or their  transferees,  the Company would  receive the $6.20  exercise
price,  less the  Solicitation  Fee.  To the  Company's  knowledge  there are no
material  relationships between any of the Bridge Financing Investors or Private
Placement  Investors and the Company,  nor have any such material  relationships
existed within the past three years. Each of the Bridge Financing  Investors and
Private  Placement  Investors  has sole  investment  power  with  respect to its
securities offered hereby,  except where joint ownership is noted below. None of
the Bridge Financing  Investors or Private Placement Investors will beneficially
own in excess of 1% of the  outstanding  shares of Common  Stock of the  Company
after the offering.

<TABLE>
<CAPTION>
   
                                                                 Number of Securities      Maximum Number      Number of Securities
                                                                  Beneficially Owned        of Securities       Beneficially Owned
                                                                   Prior to Offering         to be Sold           After Offering
                                                                --------------------     -------------------   ---------------------
                  Name of Beneficial Owner                      Shares(1)   Warrants     Shares     Warrants    Shares(1)   Warrants
                  ------------------------                      --------    --------     ------     --------    ---------   --------
<S>                                                              <C>         <C>         <C>         <C>         <C>         <C>
Bridge Financing Investor Only:
Byron M. Allen .............................................           0       6,250           0       6,250           0           0
Delbert & Patsy Allen, JTWROS ..............................           0      25,000           0      25,000           0           0
Alta Resource Group ........................................           0      12,500           0      12,500           0           0
Mark Berger ................................................       1,850       4,975           0       3,125       1,850       1,850
Larry G. Berglund ..........................................           0      12,500           0      12,500           0           0
Jacob & Channah Borenstein .................................           0       3,000           0       3,000           0           0
Theodore I. Botter - Defined Benefit Pension Trust .........           0      12,500           0      12,500           0           0
David James Brown, Money Pension Plan ......................           0      12,500           0      12,500           0           0
John A. Cleary .............................................           0      12,500           0      12,500           0           0
Kenneth & Sherry Cohen, JTWROS .............................           0      12,500           0      12,500           0           0
Robert H. Cohen & Nanette C. Koryn, JTWROS .................           0       6,250           0       6,250           0           0
Michael G. Conniff .........................................           0       6,250           0       6,250           0           0
Alan Conners ...............................................           0      12,500           0      12,500           0           0
John M. Dalena .............................................      10,000      22,500           0      12,500      10,000      10,000
Donald G. Drapkin ..........................................      20,000      70,000           0      50,000      20,000      20,000
Raymond Drapkin ............................................           0      25,000           0      25,000           0           0
Joseph A. & Theresa M.Fabiani, JTWROS ......................      12,500           0      12,500           0           0
Leonard R. Farber ..........................................           0       3,125           0       3,125           0           0
Denise Feder ...............................................       6,000      18,500           0      12,500       6,000       6,000
David Fisch ................................................           0       2,125           0       2,125           0           0
Jerome Fisch ...............................................           0       3,250           0       3,250           0           0
Marvin Fischman ............................................           0       1,563           0       1,563           0           0
Andrew J. Fremer, Jr .......................................       6,250       6,250           0       6,250       6,250           0
Andrew P. Geiss ............................................           0      12,500           0      12,500           0           0
Robert F. Goecker ..........................................           0       6,250           0       6,250           0           0
Sandra Goldstein ...........................................           0       6,250           0       6,250           0           0
Barbara Grae ...............................................       1,000      13,500           0      12,500       1,000       1,000
Harry M. Hart ..............................................           0       6,250           0       6,250           0           0
    
</TABLE>



                                       39

<PAGE>

<TABLE>
<CAPTION>
   
                                                                 Number of Securities      Maximum Number      Number of Securities
                                                                  Beneficially Owned        of Securities       Beneficially Owned
                                                                   Prior to Offering         to be Sold           After Offering
                                                                --------------------     -------------------   ---------------------
                  Name of Beneficial Owner                      Shares(1)   Warrants     Shares     Warrants    Shares(1)   Warrants
                  ------------------------                      --------    --------     ------     --------    ---------   --------
<S>                                                              <C>         <C>         <C>         <C>         <C>         <C>

Richard Hirsch .............................................      12,204      16,500           0      12,500      12,204       4,000
Tatiana Hirsu ..............................................           0       3,125           0       3,125           0           0
Badr Idbeis ................................................           0      12,500           0      12,500           0           0
Craig Johnson ..............................................       1,000      13,500           0      12,500       1,000       1,000
James W. Johnson ...........................................       7,000      21,500           0      12,500       7,000       9,000
Melvin L. Katten ...........................................       1,500      14,000           0      12,500       1,500       1,500
Daniel Kessel, M.D .........................................           0      25,000           0      25,000           0           0
Ida Kessel .................................................       1,279      12,500           0      12,500       1,279           0
Lawrence J. Kessel .........................................           0      12,500           0      12,500           0           0
Jay Kestenbaum .............................................       2,000      14,500           0      12,500       2,000       2,000
Gregory S. Lenchner, M.D ...................................           0      12,500           0      12,500           0           0
Benjamin Lehrer ............................................           0      12,500           0       8,000           0       4,500
Joseph Littenberg ..........................................           0       6,250           0       6,250           0           0
Ludlow Management, Inc. ....................................           0      12,500           0      12,500           0           0
Arthur C. Madresh ..........................................       1,000      13,500           0      12,500       1,000       1,000
Joan Maher-Hurley ..........................................           0      12,500           0      12,500           0           0
MATSET, Inc. ...............................................           0      25,000           0      25,000           0           0
Harvey & Susan Mininberg, JTWROS ...........................           0      25,000           0      25,000           0           0
Jerome J. Mullins ..........................................      53,800      78,800           0      25,000      53,800      53,800
North Oaks Ob-Gyn FBO Samuel R. Staggers, PSP ..............           0      12,500           0      12,500           0           0
Pegasus Capital Strategies, L.P. ...........................           0      12,500           0      12,500           0           0
Henry Platt ................................................           0      25,000           0      25,000           0           0
Anatoli Prokoptshouk .......................................           0       6,250           0       6,250           0           0
Pierre F. & Claire T. Pype, JTWROS .........................           0      12,500           0      12,500           0           0
Roger B. Rankin TTEE FBO Roger B. Rankin ...................           0      12,500           0      12,500           0           0
Lawrence Rothberg ..........................................           0      15,000           0      15,000           0           0
Walter Sabrin ..............................................       1,300       2,864           0       1,564       1,300       1,300
Roy & Marlena Schaeffer, JTWROS ............................       1,500      14,000           0      12,500       1,500       1,500
Louis Schell ...............................................           0      12,500           0      12,500           0           0
Abraham Schrieber ..........................................           0      12,500           0      12,500           0           0
Richard Serbin .............................................           0      12,500           0      12,500           0           0
Norman Steinberg ...........................................           0       5,000           0       5,000           0           0
Miriam Stern ...............................................           0       6,250           0       6,250           0           0
Thorunn Wathne .............................................           0      25,000           0      25,000           0           0
J. Michael Wolfe ...........................................       1,000       6,250           0       6,250       1,000           0
Martin Zelman ..............................................           0      12,500           0      12,500           0           0
Robert Zelman ..............................................           0       3,125           0       3,125           0           0
The Aries Domestic Fund, L.P.(2) ...........................           0      62,500           0      62,500           0           0
The Aries Trust(2) .........................................           0      62,500           0      62,500           0           0

Private Placement Investor Only:
Dr. George Spiegel .........................................       9,600       9,600       9,600       9,600           0           0
Paul T. Gentile and Yvette Aguiar Gentile ..................       9,600       9,600       9,600       9,600           0           0
Quest Enterprises, Inc. ....................................       2,400       2,400       2,400       2,400           0           0
George Lionikis, Sr ........................................       7,200       7,200       7,200       7,200           0           0
Jack W. Rosen ..............................................       4,800       4,800       4,800       4,800           0           0
Allan S. Lerner ............................................       4,800       4,800       4,800       4,800           0           0
Nathan Plafsky .............................................      17,100      17,100       9,600       9,600       7,500       7,500
Martin G. Mendelssohn and
  Lynn Mendelssohn, JTWROS .................................       7,200       7,200       7,200       7,200           0           0
Robert Brahms ..............................................       4,600       4,600       2,400       2,400       2,200       2,200
Thomas Rourke Trust ........................................       2,400       2,400       2,400       2,400           0           0
    
</TABLE>


                                       40
<PAGE>

<TABLE>
<CAPTION>
   
                                                                 Number of Securities      Maximum Number      Number of Securities
                                                                  Beneficially Owned        of Securities       Beneficially Owned
                                                                   Prior to Offering         to be Sold           After Offering
                                                                --------------------     -------------------   ---------------------
                  Name of Beneficial Owner                      Shares(1)   Warrants     Shares     Warrants    Shares(1)   Warrants
                  ------------------------                      --------    --------     ------     --------    ---------   --------
<S>                                                              <C>         <C>         <C>         <C>         <C>         <C>

James P. Weaver ............................................       6,400       6,400       2,400       2,400       4,000       4,000
Alvin Fried ................................................       4,800       4,800       4,800       4,800           0           0
Lawrence Martin ............................................       3,000       3,000       2,400       2,400         600         600
Epifanio Almodovar .........................................       2,400       2,400       2,400       2,400           0           0
Benjamin A. Miller Trust ...................................      24,800      24,800       4,800       4,800      20,000      20,000
Harold Yordy and Phyllis Yordy, JTWROS .....................       2,400       2,400       2,400       2,400           0           0
Henry Warner ...............................................       7,500       7,500       2,400       2,400       5,100       5,100
Harold H. Singer ...........................................       2,400       2,400       2,400       2,400           0           0
Henry Warner Spec. No. 2 ...................................       2,400       2,400       2,400       2,400           0           0
Jerry Lubliner and Melissa Lubliner, JTWROS ................       2,400       2,400       2,400       2,400           0           0
Harold Sparks ..............................................       9,600       9,600       9,600       9,600           0           0
S&A Enterprises, Inc. Profit Sharing Plan ..................       2,400       2,400       2,400       2,400           0           0
The John E. Fetzer Memorial Trust Fund .....................       4,800       4,800       4,800       4,800           0           0
SJG Management, Inc. Profit Sharing Plan ...................       7,200       7,200       7,200       7,200           0           0
Carmine T. Agnello .........................................      48,000      48,000      48,000      48,000           0           0
Wayne Mixson ...............................................       7,200       7,200       7,200       7,200           0           0
Kevin Waltzer and Lisa Waltzer .............................      18,600      24,000       9,600       9,600       9,000      14,400
Agent 17 Inc. ..............................................       2,400       2,400       2,400       2,400           0           0
Sherwyn J. Wayne ...........................................       8,300       8,300       4,800       4,800       3,500       3,500
Michael Ambroselli .........................................      11,100      11,100       9,600       9,600       1,500       1,500
Antonio Fabbri .............................................       4,900       4,900       2,400       2,400       2,500       2,500
Frank Loccisano and
  Mary Anne Loccisano, JTWROS ..............................       7,200       7,200       7,200       7,200           0           0
Alfons Melohn ..............................................      56,400      56,400      38,400      38,400      18,000      18,000
Harry Bram .................................................       4,800       4,800       4,800       4,800           0           0
John Bahng .................................................       3,500       3,500       2,400       2,400       1,100       1,100
Morton L. Topfer ...........................................      10,000      10,000       4,800       4,800       5,200       5,200
Neil C. Friess .............................................       2,400       2,400       2,400       2,400           0           0
Albert G. Bledig and Alice Bledig, JTWROS ..................       8,800       8,800       4,800       4,800       4,000       4,000
Jose Francisco .............................................       3,000       3,000       2,400       2,400         600         600
Lawrence Faisina ...........................................       4,800       4,800       4,800       4,800           0           0
Curtis R. Unanue and Maria D. Unanue, JTWROS ...............      10,300      10,300       4,800       4,800       5,500       5,500
Joel O. Wooten .............................................       2,400       2,400       2,400       2,400           0           0
Mordecai Bluth and Pearl Bluth, JTWROS .....................       3,900       3,900       2,400       2,400       1,500       1,500
Jacqueline J. Corbin .......................................       2,400       2,400       2,400       2,400           0           0
Dr. Ilesanmi Adesida and
  Dr. Patience O. Adesida, JTWROS ..........................       3,400       3,400       2,400       2,400       1,000       1,000
Milan Beres ................................................       4,800       4,800       4,800       4,800           0           0
Bruce A. Hudson and Fumi Hudson, JTWROS ....................      12,400      10,200       2,400       2,400      10,000       7,800
Gray Nesbit and Patricia Nesbit, JTWROS ....................       2,400       2,400       2,400       2,400           0           0
Radiation Therapists Associates
  Profit Sharing Plan F/B/O Hosny Selim ....................       3,400       3,400       2,400       2,400       1,000       1,000
Jeffrey I. Mechanick, M.D ..................................      17,000      17,000      12,000      12,000       5,000       5,000
John P. Diesel .............................................       2,400       2,400       2,400       2,400           0           0
Vennard C. McCann ..........................................       6,400       6,400       2,400       2,400       4,000       4,000
Theodore R. Jabara and Helene E. Jabara ....................      14,400      14,400      14,400      14,400           0           0
Gail Silberman .............................................       3,900       3,900       2,400       2,400       1,500       1,500
Amore Perpetuo, Inc. .......................................      39,400      39,400      14,400      14,400      25,000      25,000
Dawn C. Kass Irrevocable Trust .............................       9,600       9,600       9,600       9,600           0           0
Alex Grunberger and Eva Grunberger, JTWROS .................       2,400       2,400       2,400       2,400           0           0
Mitchell Birzon and
  Kathryn W. Birzon, JTWROS ................................       2,400       2,400       2,400       2,400           0           0
    
</TABLE>


                                       41


<PAGE>

<TABLE>
<CAPTION>
   
                                                                 Number of Securities      Maximum Number      Number of Securities
                                                                  Beneficially Owned        of Securities       Beneficially Owned
                                                                   Prior to Offering         to be Sold           After Offering
                                                                --------------------     -------------------   ---------------------
                  Name of Beneficial Owner                      Shares(1)   Warrants     Shares     Warrants    Shares(1)   Warrants
                  ------------------------                      --------    --------     ------     --------    ---------   --------
<S>                                                              <C>         <C>         <C>         <C>         <C>         <C>
Jonathan Elias and Irene Elias, JTWROS......................      4,800       4,800       4,800       4,800           0           0
Donald W. McCue and
  Mary Ellen McCue, JTWROS..................................      9,600       9,600       9,600       9,600           0           0
Matthew C. Schilowitz.......................................     24,000      24,000      24,000      24,000           0           0
Jay E. Fennessy.............................................      2,400       2,400       2,400       2,400           0           0
Jeremy P. Waletzky Revocable Trust..........................      2,400       2,400       2,400       2,400           0           0
Fred Rosen..................................................      2,400       2,400       2,400       2,400           0           0
Howard Gelman...............................................      5,040       5,040       2,400       2,400       2,640       2,640
My Seven Children, Inc......................................     20,300      20,300       4,800       4,800      15,500      15,500
Herbert Michitsch and
  Mary Michitsch, JTWROS....................................      2,400       2,400       2,400       2,400           0           0
Rocco W. Belmonte...........................................      2,400       2,400       2,400       2,400           0           0
Marc K. Siegel..............................................      2,800       2,800       2,400       2,400         400         400
Bob Gold and Gwendolyn Gold, JTWROS.........................     11,800      11,800       4,800       4,800       7,000       7,000
Natalie Bernstein...........................................      2,700       2,700       2,400       2,400         300         300
Thomas A. Corvo.............................................          0           0           0           0           0           0
Robert Huebner..............................................      2,400       2,400       2,400       2,400           0           0
Clarence B. Horton..........................................      6,800       6,800       4,800       4,800       2,000       2,000
James A. Cook and Karen S. Cook, TIC........................      2,400       2,400       2,400       2,400           0           0
M.S. Corporation............................................      2,400       2,400       2,400       2,400           0           0
Alan A. Cohen, M.D..........................................      2,400       2,400       2,400       2,400           0           0
Walter James Smith..........................................      4,400       4,400       2,400       2,400       2,000       2,000
Walter Futterweit, M.D......................................      2,400       2,400       2,400       2,400           0           0
Kishu Idnani................................................      3,750       3,750       2,400       2,400       1,350       1,350
Michael M. Sher and Claude A. Sher, JTWROS..................      6,600       6,600       4,800       4,800       1,800       1,800
Tommy B. Austin and
  Brenda J. Austin, JTWROS..................................      3,400       3,400       2,400       2,400       1,000       1,000
Charles W. Dunn Revocable Trust.............................      9,600       9,600       9,600       9,600           0           0
Stephen Posovsky Money Purchase
  Keogh Plan & Trust........................................      2,400       2,400       2,400       2,400           0           0
Howard E. Zucker and
  Paulette Zucker, JTWROS...................................      4,800       4,800       4,800       4,800           0           0
Irwin H. Parnes.............................................      4,400       4,400       2,400       2,400       2,000       2,000
Howard Brownstein and
  Leslie Brownstein, JTWROS.................................      2,400       2,400       2,400       2,400           0           0
Kathleen McGlynn............................................     19,200      19,200      19,200      19,200           0           0
Howard Sternheim and
  Sharon Sternheim, JTWROS..................................      4,400       4,400       2,400       2,400       2,000       2,000
Allan Bruce Mekles..........................................      2,400       2,400       2,400       2,400           0           0
John A. Long................................................      4,800       4,800       4,800       4,800           0           0
Edwards Culver Kidd III.....................................      3,900       2,400       2,400       2,400       1,500           0
Rene Grodko.................................................     10,200      10,200       2,400       2,400       7,800       7,800
L.S. Agrawal................................................     14,800      14,800       4,800       4,800      10,000      10,000
Steven Sheck................................................      4,900       4,900       2,400       2,400       2,500       2,500
Chaitanya K. Agarwal........................................      5,400       5,400       2,400       2,400       3,000       3,000
Alan N. Parnes, D.D.S.......................................      6,900       6,900       2,400       2,400       4,500       4,500
Michael Szikman and
  Francoise Szikman, JTWROS.................................      6,400       6,400       2,400       2,400       4,000       4,000
GYN/OBS Associates of New Rochelle..........................      2,400       2,400       2,400       2,400           0           0
David Eckstein and
  Marianna Eckstein, JTWROS.................................      4,800       4,800       4,800       4,800           0           0
Mark Scheinfeld and
  Novy Scheinfeld, JTWROS...................................      2,400       2,400       2,400       2,400           0           0
    
</TABLE>


                                       42
<PAGE>

<TABLE>
<CAPTION>
   
                                                                 Number of Securities      Maximum Number      Number of Securities
                                                                  Beneficially Owned        of Securities       Beneficially Owned
                                                                   Prior to Offering         to be Sold           After Offering
                                                                --------------------     -------------------   ---------------------
                  Name of Beneficial Owner                      Shares(1)   Warrants     Shares     Warrants    Shares(1)   Warrants
                  ------------------------                      --------    --------     ------     --------    ---------   --------
<S>                                                              <C>         <C>         <C>         <C>         <C>         <C>
Sophia Schwartzman and
  Alex Schwartzman, JTWROS .................................       2,400       2,400       2,400       2,400           0           0
Gary L. Godlewski ..........................................       2,900       2,900       2,400       2,400         500         500
Bernard J. Perini ..........................................       9,600       9,600       9,600       9,600           0           0
George Goldstein ...........................................       2,400       2,400       2,400       2,400           0           0
The Interiors Workshop of Naples Inc. ......................       3,100       3,100       2,400       2,400         700         700
Glenn Hammer DDC Profit Sharing Plan .......................       4,400       4,400       2,400       2,400       2,000       2,000
William A. Schneider .......................................       2,400       2,400       2,400       2,400           0           0
Robert Lombardi and
  Margaret Lombardi, JTWROS ................................       5,800       5,800       4,800       4,800       1,000       1,000
George Wailand .............................................       2,400       2,400       2,400       2,400           0           0
Richard P. Cole ............................................       6,400       6,400       2,400       2,400       4,000       4,000
Murray Cohen ...............................................       7,400       7,400       2,400       2,400       5,000       5,000
Norman Chalif and Rosalie Chalif, JTWROS ...................       2,400       2,400       2,400       2,400           0           0
Herbert Hoffner, M.D .......................................       2,400       2,400       2,400       2,400           0           0
R. Douglas Scheidt .........................................       4,800       4,800       4,800       4,800           0           0
Douglas S. Drysdale ........................................       2,400       2,400       2,400       2,400           0           0
Grace T. O'Steen and Ruby O'Steen, TIC .....................       4,800       4,800       4,800       4,800           0           0
James Nigro ................................................      31,200      31,200      31,200      31,200           0           0
Raymond M. Warren, Jr ......................................       4,800       4,800       4,800       4,800           0           0
Jan Linhart, D.D.S .........................................       2,400       2,400       2,400       2,400           0           0
David Richard Simon ........................................       2,400       2,400       2,400       2,400           0           0
Herbert H. Derian and
  Lorelei F. Derian, JTWROS ................................       7,700       7,700       2,400       2,400       5,300       5,300
Lee Miller, M.D. and Lynne Miller, JTWROS ..................      12,400      12,400       2,400       2,400      10,000      10,000
Lisa A. Neibart ............................................       1,470       1,470       1,200       1,200         270         270
Martin A. Cooper, M.D. Retirement Plan .....................       4,800       4,800       4,800       4,800           0           0
Richard W. Schreiber .......................................       2,400       2,400       2,400       2,400           0           0
South Ferry Building Company ...............................      72,000      72,000      72,000      72,000           0           0
Aaron Wolfson ..............................................      39,600      39,600      24,000      24,000      15,600      15,600
Abraham Wolfson ............................................      23,800      23,800       4,800       4,800      19,000      19,000
Display Presentations Defined
  Benefit Pension Plan .....................................       2,400       2,400       2,400       2,400           0           0
Robert D. Frankel and
  Marie N. Frankel, JTWROS .................................       4,400       4,400       2,400       2,400       2,000       2,000
Charles F. Larimer .........................................       2,400       2,400       2,400       2,400           0           0
David C. Ward and
  Patricia Bray-Ward, JTWROS ...............................       4,800       4,800       4,800       4,800           0           0
C.A. Siver .................................................       2,400       2,400       2,400       2,400           0           0
Barry L. Kroll .............................................       2,400       2,400       2,400       2,400           0           0
Frank Carrea and Michelle Carrea, JTWROS ...................       2,400       2,400       2,400       2,400           0           0
Michael Rosin ..............................................      19,700      19,700      19,200      19,200         500         500
Stephen Baldwin Jayne ......................................       4,800       4,800       4,800       4,800           0           0
The Rubin Family Foundation, Inc. ..........................       4,800       4,800       4,800       4,800           0           0
Gordon M. Berger ...........................................       2,400       2,400       2,400       2,400           0           0
John R. Manion .............................................       4,800       4,800       2,400       2,400       2,400       2,400
Arnold Baruch Simon ........................................       9,600       9,600       9,600       9,600           0           0
Howard L. Etchell Trust ....................................       2,400       2,400       2,400       2,400           0           0
Vadim Milstein .............................................       2,400       2,400       2,400       2,400           0           0
David Wilkes and Ruth Wilkes, JTWROS .......................       2,400       2,400       2,400       2,400           0           0
Stafford R. Broumand .......................................       6,800       6,800       4,800       4,800       2,000       2,000
Mike Teofilovich ...........................................       2,400       2,400       2,400       2,400           0           0
    
</TABLE>


                                       43
<PAGE>

<TABLE>
<CAPTION>
   
                                                                 Number of Securities      Maximum Number      Number of Securities
                                                                  Beneficially Owned        of Securities       Beneficially Owned
                                                                   Prior to Offering         to be Sold           After Offering
                                                                --------------------     -------------------   ---------------------
                  Name of Beneficial Owner                      Shares(1)   Warrants     Shares     Warrants    Shares(1)   Warrants
                  ------------------------                      --------    --------     ------     --------    ---------   --------
<S>                                                              <C>         <C>         <C>         <C>         <C>         <C>
Barbara Bogan ..............................................           0           0           0           0           0           0
David H. Szikman and
  Michael Szikman, JTWROS ..................................       2,400       2,400       2,400       2,400           0           0
John Motulsky ..............................................       2,400       2,400       2,400       2,400           0           0
Louis Centofanti ...........................................       2,400       2,400       2,400       2,400           0           0
Howard Berg ................................................       9,600       9,600       9,600       9,600           0           0
25 Broadway Realty Company .................................      48,000      48,000      48,000      48,000           0           0
Robert Sloan and Irene Sloan, JTWROS .......................       5,900       5,900       2,400       2,400       3,500       3,500
Fred Margolin and Ann Margolin, JTWROS .....................       5,400       5,400       2,400       2,400       3,000       3,000
Robert M. Saul .............................................       4,600       4,600       2,400       2,400       2,200       2,200
James T. Schenk ............................................       2,400       2,400       2,400       2,400           0           0
Jules H. Dreyfuss ..........................................      22,700      22,701       7,200       7,200      15,500      15,501
Eugene Silverman ...........................................       1,440       1,440       1,440       1,440           0           0
Jonathan I. Greene, M.D. and
  Laurie J. Greene, JTWROS .................................       2,400       2,400       2,400       2,400           0           0
Ahmad Rashad ...............................................       4,800       4,800       4,800       4,800           0           0
Marvin Kogod and Muriel Kogod, JTWROS ......................       6,800       6,800       4,800       4,800       2,000       2,000
Gary A. Greenberg ..........................................       1,200       1,200       1,200       1,200           0           0
George R. Isely and Judith A. Isely, JTWROS ................       3,400       3,400       2,400       2,400       1,000       1,000
The Mary Patoff Revocable Trust ............................       5,200       5,200       5,200       5,200           0           0
The Michael Patoff Revocable Trust .........................       5,200       5,200       5,200       5,200           0           0
The Clara Patoff Revocable Trust ...........................       4,000       4,000       4,000       4,000           0           0
Bryan A. Simmons ...........................................       2,400       2,400       2,400       2,400           0           0
Richard A. Nelson and
  Elaine M. Nelson, JTWROS .................................      68,800      68,800      16,800      16,800      52,000      52,000
Lawrence Helfant ...........................................       9,600       9,600       9,600       9,600           0           0
Victor Molinsky and Janet Molinsky, JTWROS .................       2,400       2,400       2,400       2,400           0           0
Marlene Levine .............................................       2,400       2,400       2,400       2,400           0           0
Bernard Golan Trust ........................................       9,800       9,800       4,800       4,800       5,000       5,000
Stephen J. Kornfeld, M.D. and
  Janice T. Kornfeld, JTWROS ...............................       2,400       2,400       2,400       2,400           0           0
Matthew A. Bishop ..........................................       1,200       1,200       1,200       1,200           0           0
Vincent J. Pizzulli ........................................       2,400       2,400       2,400       2,400           0           0
Gary Novetsky and Sandra Novetsky, JTWROS ..................       2,400       2,400       2,400       2,400           0           0
Yong S. Chen ...............................................       2,400       2,400       2,400       2,400           0           0
Donald Shaver ..............................................       2,400       2,400       2,400       2,400           0           0
Joseph Fishman .............................................       4,400       4,400       2,400       2,400       2,000       2,000
Jeffrey M. Walters .........................................       2,400       2,400       2,400       2,400           0           0
Petrocelli Industries Inc. .................................       2,400       2,400       2,400       2,400           0           0
Leonard Moskowitz and
  Vickie Moskowitz, JTWROS .................................       4,800       4,800       4,800       4,800           0           0
Manhattan Partners .........................................       2,400       2,400       2,400       2,400           0           0
Richard J. Stephenson ......................................       9,600       9,600       9,600       9,600           0           0
Jay Harris .................................................       2,400       2,400       2,400       2,400           0           0
Henry Szikman and Gloria Szikman, JTWROS ...................       2,400       2,400       2,400       2,400           0           0
Mark A. Respler and Yale E. Respler, JTWROS ................       2,400       2,400       2,400       2,400           0           0
Ivan Jacobs ................................................       3,000       3,000       2,400       2,400         600         600
George J. Wegler Living Trust ..............................       5,400       5,400       2,400       2,400       3,000       3,000
David J. Domeier and
  Patricia Sue Domeier, JTWROS .............................       2,400       2,400       2,400       2,400           0           0
Brynde Berkowitz ...........................................       2,400       2,400       2,400       2,400           0           0
    
</TABLE>


                                       44
<PAGE>

<TABLE>
<CAPTION>
   
                                                                 Number of Securities      Maximum Number      Number of Securities
                                                                  Beneficially Owned        of Securities       Beneficially Owned
                                                                   Prior to Offering         to be Sold           After Offering
                                                                --------------------     -------------------   ---------------------
                  Name of Beneficial Owner                      Shares(1)   Warrants     Shares     Warrants    Shares(1)   Warrants
                  ------------------------                      --------    --------     ------     --------    ---------   --------
<S>                                                              <C>         <C>         <C>         <C>         <C>         <C>
Regina Lehrer ..............................................       4,800       4,800       4,800       4,800           0           0
Morris Friedman ............................................       6,800       6,800       4,800       4,800       2,000       2,000
Martin Sirotkin ............................................       2,400       2,400       2,400       2,400           0           0
Eugene P. Souther ..........................................       9,500       9,500       4,700       4,700       4,800       4,800
Howard Garfield ............................................       4,680       4,680       1,200       1,200       3,480       3,480
William J. Fox .............................................       1,200       1,200       1,200       1,200           0           0
KBCS Inc. ..................................................       2,980       2,980       1,200       1,200       1,780       1,780
Patrick J. Storm and Marie Storm ...........................      11,065      11,065       1,200       1,200       9,865       9,865
Leon Melohn ................................................      19,200      19,200      19,200      19,200           0           0
Joseph Abatiello ...........................................       1,440       1,440       1,440       1,440           0           0
Lisa Susan Gatschet ........................................       5,800       5,800       4,800       4,800       1,000       1,000
Samuel J. Holtzman Trust ...................................      22,000      22,000      12,000      12,000      10,000      10,000
Michael Jordan .............................................       4,800       4,800       4,800       4,800           0           0
Curtis Polk ................................................      12,400      12,400       2,400       2,400      10,000      10,000
Arnold Pusar Trust .........................................       8,920       8,920       1,920       1,920       7,000       7,000
Eric J. Wiborg and Laurie Wiborg, JTWROS ...................       3,600       2,400       2,400       2,400       1,200           0
Eric J. Wiborg Trust .......................................      14,300      14,300       4,800       4,800       9,500       9,500
Allan Novetsky and
  Chaikie Novetsky, JTWROS .................................       2,400       2,400       2,400       2,400           0           0
Allan Novetsky and Hillel Novetsky, JTWROS .................       2,400       2,400       2,400       2,400           0           0
Ross Golding ...............................................      13,900      13,900       2,400       2,400      11,500      11,500
Marvin S. Becker, M.D. and
  Jacqueline Becker, JTWROS ................................       1,200       1,200       1,200       1,200           0           0
Kirit S. Patel and Shobha K. Patel .........................       1,200       1,200       1,200       1,200           0           0
Gary B. Flom ...............................................       1,200       1,200       1,200       1,200           0           0
Venjamin Nilva .............................................       1,200       1,200       1,200       1,200           0           0
Iouri Ostanine .............................................       1,200       1,200       1,200       1,200           0           0
Roger C. Rohrs .............................................       2,400       2,400       2,400       2,400           0           0
Technochem Technical Services, Inc. ........................       2,400       2,400       2,400       2,400           0           0
Judith A. Price ............................................      31,600      31,600       3,600       3,600      28,000      28,000
Kenneth F. Price ...........................................      31,600      31,600       3,600       3,600      28,000      28,000
Casimer Zaremba ............................................       1,200       1,200       1,200       1,200           0           0
John F. Mowrer .............................................       6,400       6,400       2,400       2,400       4,000       4,000
Stephen F. Ficchi ..........................................       2,400       2,400       2,400       2,400           0           0
Leonard Brawer .............................................       2,650       2,650       1,200       1,200       1,450       1,450
Benjamin Bollag ............................................      14,400      14,400      14,400      14,400           0           0
Michael Bollag .............................................      14,400      14,400      14,400      14,400           0           0
Gilman R. King .............................................       4,800       4,800       4,800       4,800           0           0

Investor in Both Bridge Financing and Private Placement(3):
Leonard J. Adams ...........................................      16,400      37,400      14,400      26,900       2,000      10,500
James L. Alderman ..........................................       2,400      14,900       2,400      14,900           0           0
Robert S. Benach and Sonia T.Benach, JTWROS ................       1,200      13,700       1,200      13,700           0           0
Daniel C. Callow ...........................................       3,650      16,150       2,400      14,900       1,250       1,250
James P. Clay ..............................................       2,400      14,900       2,400      14,900           0           0
Robert S. Cowles III .......................................       2,400      14,900       2,400      14,900           0           0
Nathan Eisen and Rose Eisen, JTWROS ........................       9,600      34,600       9,600      34,600           0           0
Bruce Fetzer and D'Abra L. Fetzer, JTWROS ..................       4,800      17,300       4,800      17,300           0           0
Stuart Gruber ..............................................       4,800      17,300       4,800      17,300           0           0
Daniel M.Gutkin ............................................       4,900      19,900       2,400      17,400       2,500       2,500
International Foam Products, Inc. ..........................       2,400      14,900       2,400      14,900           0           0
    
</TABLE>


                                       45
<PAGE>

<TABLE>
<CAPTION>
   
                                                                 Number of Securities      Maximum Number      Number of Securities
                                                                  Beneficially Owned        of Securities       Beneficially Owned
                                                                   Prior to Offering         to be Sold           After Offering
                                                                --------------------     -------------------   ---------------------
                  Name of Beneficial Owner                      Shares(1)   Warrants     Shares     Warrants    Shares(1)   Warrants
                  ------------------------                      --------    --------     ------     --------    ---------   --------
<S>                                                              <C>         <C>         <C>         <C>         <C>         <C>
Bruce Kashkin and Marjorie Kashkin, JTWROS .................       4,900      29,900       2,400      27,400       2,500       2,500
Robert Katz ................................................      19,400      31,900      14,400      26,900       5,000       5,000
Robert Klein, M.D. and
  Myriam Klein, M.D., JTWROS ...............................      32,000      94,500      24,000      86,500       8,000       8,000
Michael Kubin and Nicole Kubin, JTWROS .....................      19,200      36,700      19,200      31,700           0       5,000
Joseph S. Kulpa ............................................      14,550      29,800       4,800      29,800       9,750           0
Alda Campisi Levitt ........................................       2,400      14,900       2,400      14,900           0           0
J. Jay Lobell and Beverly O. Lobell, JTWROS ................      22,200      34,700      19,200      31,700       3,000       3,000
George I. Mallis ...........................................       2,400      14,900       2,400      14,900           0           0
Charles T. McManus .........................................       2,400      14,900       2,400      14,900           0           0
Albert Milstein ............................................       7,800      20,300       4,800      17,300       3,000       3,000
Patrick Morgan and Ruth Morgan, JTWROS .....................       2,400      14,900       2,400      14,900           0           0
Robert M. Patton ...........................................       2,400      14,900       2,400      14,900           0           0
Ruth Peyser ................................................       3,400      15,900       2,400      14,900       1,000       1,000
Anand Sathe ................................................      15,000      27,500      12,000      24,500       3,000       3,000
Wayne Saker ................................................      14,400      26,900      14,400      26,900           0           0
Steven Sklow ...............................................      23,200      74,800       7,200      57,200      16,000      17,600
Leonard A. Solomon .........................................       4,800      17,300       4,800      17,300           0           0
Bernard Strassner and Bernice Strassner, JTWROS ............       2,400      14,900       2,400      14,900           0           0
Alice C. Tate ..............................................       4,800      17,300       4,800      17,300           0           0
Carl Weiman and Beverly Weiman, JTWROS .....................       1,200      13,700       1,200      13,700           0           0
Herman L. Zeller - Living Trust ............................      17,300      14,900       2,400      14,900      14,900           0
Murray Zung ................................................       2,400      14,900       2,400      14,900           0           0
    
</TABLE>

- --------

   
(1)  Does not include shares of Common Stock underlying the Warrants.
(2)  Lindsay A. Rosewald, a director of the Company serves as investment manager
     for The Aries  Trust and  President  of the  general  partner  of The Aries
     Domestic Fund L.P.
(3)  Includes  securities  which  may  have  been  purchased  in one of the  two
     offerings by one of the individuals listed as a joint holder.
    





                                       46


<PAGE>


(2)                           PLAN OF DISTRIBUTION

     The securities  offered hereby by the Company are being offered directly by
the Company pursuant to the terms of the Warrants. The securities offered hereby
by the Selling  Securityholders may be sold by the Selling Securityholders or by
their  transferees  or other  successors in interest.  The  distribution  of all
securities  offered hereby may be effected in one or more  transactions that may
take  place  on  the  over-the-counter   market,   including  ordinary  broker's
transactions,  privately-negotiated transactions or through sales to one or more
broker/dealers  for resale of such  securities as  principals,  at market prices
prevailing  at the time of sale,  at prices  related to such  prevailing  market
prices or at negotiated prices.  Usual and customary or specifically  negotiated
brokerage  fees or commissions  may be paid by these holders in connection  with
such sales. No underwriter is being utilized in connection with this offering.

     The Company has agreed not to solicit Warrant  exercises other than through
Blair. Upon any exercise of the Warrants, the Company will pay Blair a fee of 5%
of the aggregate exercise price if (i) the market price of the Company's Class A
Common  Stock on the date the  Warrant is  exercised  is  greater  than the then
exercise  price of the Warrants;  (ii) the exercise of the Warrant was solicited
by a  member  of  the  National  Association  of  Securities  Dealers,  Inc.  as
designated in writing on the Warrant  certificate  subscription  form; (iii) the
Warrant is not held in a discretionary  account; (iv) disclosure of compensation
arrangements  was  made  both at the  time of the  offering  and at the  time of
exercise of the Warrants,  and (v) the  solicitation  of exercise of the Warrant
was not in violation of Rule 10b-6 promulgated under the Exchange Act.

     Blair acted as underwriter of the Company's IPO and as placement  agent for
the Private  Placement.  Other than the securities  underlying the Unit Purchase
Options  granted to Blair and D.H. Blair & Co., Inc.  ("Blair & Co."), a selling
group  member in the IPO which is  substantially  owned by family  members of J.
Morton Davis,  the sole  stockholder  of Blair,  the Company is not aware of any
other securities of the Company owned by Blair or Blair & Co.

     The Company is aware that Blair & Co. is  currently  making a market in the
Company's  securities.  Unless granted an exemption by the Commission  from Rule
10b-6  promulgated  under the Exchange Act, Blair & Co. will be prohibited  from
engaging in any market making activities with regard to the Company's securities
for the period from two to nine business days (or such other  applicable  period
as Rule 10b-6 may provide) prior to any solicitation by Blair of the exercise of
Warrants until the later of the termination of such solicitation activity or the
termination (by waiver or otherwise) of any right that Blair may have to receive
a fee for the exercise of Warrants  following  such  solicitation.  As a result,
Blair & Co.  may be unable  to  provide a market  for the  Company's  securities
during certain periods while the Warrants are exercisable.

     Blair has  informed  the  Company  that the  Commission  is  conducting  an
investigation  concerning  various business  activities of Blair and Blair & Co.
The investigation  appears to be broad in scope,  involving  numerous aspects of
Blair  and  Blair & Co.'s  compliance  with  the  Federal  securities  laws  and
compliance  with the Federal  securities  laws by issuers whose  securities were
underwritten  by  Blair or Blair & Co.  or in  which  Blair or Blair & Co.  made
over-the-counter  markets,  persons  associated  with Blair or Blair & Co., such
issuers  and other  persons.  The  Company  has been  advised  by Blair that the
investigation  has been ongoing  since at least 1989 and that it is  cooperating
with the  investigation.  Blair cannot predict whether this  investigation  will
ever result in any type of formal  enforcement  action  against Blair or Blair &
Co., or, if so, whether any such action might have an adverse effect on Blair or
the securities  offered hereby.  An unfavorable  resolution of the  Commission's
investigation  could have the effect of limiting such firm's  ability to solicit
the Company's Warrants.


                            DESCRIPTION OF SECURITIES

     The following  description of the Company's  securities does not purport to
be complete and is subject in all respects to applicable Delaware law and to the
provisions of the Company's  Amended and Restated  Certificate of  Incorporation
and By-laws and the Warrant  Agreements  among the Company,  the Underwriter and
Continental Stock Transfer & Trust Company, as warrant agent,  pursuant to which
the  Warrants  have  been  issued,  copies  of all of which are on file with the
Commission.


                                       47

<PAGE>



Units

     Each  Unit  consists  of one share of Common  Stock and one  Warrant.  Each
Warrant  entitles the holder thereof to purchase one share of Common Stock.  The
Common Stock and Warrants comprising the Units are separately transferable.


Common Stock

   
     The Company has  authorized  30,000,000  shares of Common  Stock,  of which
12,361,918 were  outstanding at November 22, 1996.  Holders of Common Stock have
the  right  to cast  one  vote for each  share  held of  record  on all  matters
submitted  to a vote of holders  of Common  Stock,  including  the  election  of
directors.  There is no right to cumulate  votes for the election of  directors.
Stockholders  holding a majority of the voting power of the capital stock issued
and  outstanding  and entitled to vote,  represented in person or by proxy,  are
necessary to constitute a quorum at any meeting of the  Company's  stockholders,
and the vote by the holders of a majority of such outstanding shares is required
to effect certain fundamental  corporate changes such as liquidation,  merger or
amendment of the Company's Certificate of Incorporation.
    

     Holders of Common Stock are entitled to receive dividends pro rata based on
the number of shares held,  when,  as and if declared by the Board of Directors,
from funds legally available  therefor,  subject to the rights of holders of any
outstanding  preferred  stock. In the event of the  liquidation,  dissolution or
winding up of the  affairs of the  Company,  all assets and funds of the Company
remaining after the payment of all debts and other  liabilities,  subject to the
rights of the holders of any outstanding  preferred stock, shall be distributed,
pro rata, among the holders of the Common Stock. Holders of Common Stock are not
entitled to preemptive or  subscription or conversion  rights,  and there are no
redemption or sinking fund provisions applicable to the Common Stock.


Redeemable Warrants

     Each Warrant entitles the registered holder to purchase one share of Common
Stock at an exercise  price of $6.20 at any time until 5:00 P.M.,  New York City
time, on January 18, 2001. Commencing one year from the date of this Prospectus,
the  Warrants  are  redeemable  by the Company on 30 days'  written  notice at a
redemption  price of $.05 per Warrant if the  "closing  price" of the  Company's
Common Stock for any 30  consecutive  trading days ending  within 15 days of the
notice of  redemption  averages  in excess of $9.10 per share.  "Closing  price"
shall mean the  closing  bid price if listed in the  over-the-counter  market on
Nasdaq or otherwise  or the closing sale price if listed on the Nasdaq  National
Market or a national securities  exchange.  All Warrants must be redeemed if any
are redeemed.

     The  Warrants  were issued  pursuant to warrant  agreements  (the  "Warrant
Agreements")  among the Company,  Blair and  Continental  Stock Transfer & Trust
Company, New York, New York, as warrant agent (the "Warrant Agent"), and will be
evidenced by warrant  certificates in registered  form. The Warrants provide for
adjustment  of the  exercise  price  and for a change  in the  number  of shares
issuable upon  exercise to protect  holders  against  dilution in the event of a
stock dividend, stock split, combination or reclassification of the Common Stock
or upon issuance of shares of Common Stock at prices lower than the market price
of the Common Stock, with certain exceptions.

      The exercise price of the Warrants was  determined by negotiation  between
the Company and the  Underwriter and should not be construed to be predictive of
or to imply that any price increases in the Company's securities will occur.

     The  Company  has  reserved  from  its  authorized  but  unissued  shares a
sufficient  number of shares of Common Stock for  issuance  upon the exercise of
the  Warrants.  A  Warrant  may be  exercised  upon  surrender  of  the  Warrant
certificate on or prior to its expiration date (or earlier  redemption  date) at
the offices of the Warrant Agent, with the Subscription Form on the reverse side
of the Warrant certificate  completed and executed as indicated,  accompanied by
payment of the full  exercise  price (by  certified or bank check payable to the
order of the Company) for the number of shares with respect to which the Warrant
is being  exercised.  Shares  issued upon  exercise  of Warrants  and payment in
accordance with the terms of the Warrants will be fully paid and non-assessable.

     For the life of the Warrants,  the holders  thereof have the opportunity to
profit  from a rise in the market  value of the Common  Stock,  with a resulting
dilution in the interest of all other stockholders.  So long as the Warrants are
outstanding,  the terms on which the Company could obtain additional capital may
be adversely affected. The holders of the Warrants might be expected to exercise
them at a time when the Company would, in all likelihood,  be 



                                       48

<PAGE>

able to obtain any needed  capital by a new offering of securities on terms more
favorable than those provided for by the Warrants.

     The  Warrants  do not  confer  upon the  Warrantholder  any voting or other
rights of a stockholder of the Company.  Upon notice to the Warrantholders,  the
Company has the right to reduce the exercise price or extend the expiration date
of the Warrants.


Unit Purchase Options

     In connection with the IPO, the Company granted to Blair and its designees,
unit  purchase  options  (the "IPO Unit  Purchase  Options")  to  purchase up to
320,000  Units  identical  to the Units sold in the IPO except that the Warrants
included in the IPO Unit Purchase  Options are only subject to redemption by the
Company  after  the IPO  Unit  Purchase  Options  have  been  exercised  and the
underlying  Warrants are  outstanding.  The IPO Unit Purchase  Options cannot be
transferred, sold, assigned or hypothecated prior to January 1999, except to any
officer of Blair or members of the selling group or their officers. The IPO Unit
Purchase Options are exercisable  during the two-year period commencing  January
18, 1999 at an exercise price of $6.50 per Unit subject to adjustment in certain
events to protect against dilution.

     In connection with the Private  Placement,  the Company issued to Blair and
its  designees,  unit  purchase  options (the "Private  Placement  Unit Purchase
Options") to purchase up to 307,200 Units,  substantially identical to the Units
sold in the IPO and the Private Placement,  except that the Warrants included in
the Private Placement Unit Purchase Options are not subject to redemption by the
Company.  The Private Placement Unit Purchase Options are exercisable during the
five-year  period  commencing  July 31, 1996 at an exercise  price of $10.42 per
Unit subject to adjustment in certain events to protect against dilution.

     The holders of the Unit Purchase  Options have certain demand and piggyback
registration rights.


Preferred Stock

     The Company is authorized to issue up to 5,000,000  shares of "blank-check"
preferred  stock (the "Preferred  Stock").  The Board of Directors will have the
authority  to issue this  Preferred  Stock in one or more  series and to fix the
number of shares and the relative rights,  conversion rights,  voting rights and
terms  of  redemption   (including  sinking  fund  provisions)  and  liquidation
preferences,  without further vote or action by the  stockholders.  If shares of
Preferred  Stock with voting rights are issued,  such issuance  could affect the
voting  rights of the holders of the Company's  Common Stock by  increasing  the
number of outstanding  shares having voting rights, and by the creation of class
or series voting  rights.  If the Board of Directors  authorizes the issuance of
shares of Preferred Stock with conversion rights, the number of shares of Common
Stock outstanding could potentially be increased by up to the authorized amount.
Issuance of Preferred Stock could, under certain circumstances,  have the effect
of delaying or  preventing a change in control of the Company and may  adversely
affect the rights of holders of Common Stock.  Also,  Preferred Stock could have
preferences  over the Common Stock (and other  series of  preferred  stock) with
respect to dividend and liquidation  rights.  The Company currently has no plans
to issue any Preferred Stock.


Transfer Agent

     Continental  Stock Transfer & Trust Company,  New York, New York, serves as
Transfer  Agent  for the  shares  of  Common  Stock  and  Warrant  Agent for the
Warrants.


Business Combination Provisions

     The  Company  is  subject  to  a  Delaware  statute  regulating   "business
combinations,"  defined  to  include  a broad  range  of  transactions,  between
Delaware corporations and "interested stockholders," defined as persons who have
acquired at least 15% of a corporation's stock. Under the law, a corporation may
not engage in any business  combination  with any interested  stockholder  for a
period of three years from the date such person became an interested stockholder
unless  certain  conditions  are  satisfied.  The  statute  contains  provisions
enabling a corporation to avoid the statute's restrictions.

     The Company has not sought to "elect  out" of the statute  and,  therefore,
upon closing of the Offering and the  registration of its shares of Common Stock
under the Exchange Act, the  restrictions  imposed by such statute will apply to
the Company.




                                       49
<PAGE>


Registration Rights

     The Company has granted certain demand and piggy-back  registration  rights
to the  holders of the  5,521,140  shares of Common  Stock to  purchase  549,139
shares of Common Stock.  Such  registration  rights are  exercisable  commencing
January 1997.

     The holders of warrants to purchase an  aggregate of 7,395 shares of Common
Stock have certain demand and piggy-back registration rights commencing February
1997.

     The  holders  of the Unit  Purchase  Options  have  demand  and  piggy-back
registration rights relating to such options and the underlying securities.


                         SHARES ELIGIBLE FOR FUTURE SALE

     At November  22, 1996,  the Company had  outstanding  12,361,918  shares of
Common  Stock.  Of these  shares,  the  3,680,000  shares issued in the IPO, the
1,536,000  registered  hereby and the shares issued upon exercise of warrants to
date are freely  transferable  without  restriction  under the  Securities  Act,
unless  purchased by  affiliates  of the Company as that term is defined in Rule
144 under the Securities Act ("Rule 144") described  below. The remaining shares
of Common Stock currently outstanding are "restricted securities" and may not be
sold publicly  unless they are  registered  under the Securities Act or are sold
pursuant to Rule 144 or another exemption from registration. However, holders of
approximately 95% of the outstanding shares and options and warrants have agreed
not to sell or otherwise  dispose of any shares of Common Stock without  Blair's
prior written consent until February 18, 1997.

     In  general,  under  Rule  144  a  person  (or  persons  whose  shares  are
aggregated),  including  persons  who may be  deemed to be  "affiliates"  of the
Company as that term is defined  under the  Securities  Act, is entitled to sell
within any three-month  period a number of restricted shares  beneficially owned
for at least two years that does not  exceed  the  greater of (i) 1% of the then
outstanding shares of Common Stock or (ii) an amount equal to the average weekly
trading volume in the Common Stock during the four calendar weeks preceding such
sale.  Sales under Rule 144 are also subject to certain  requirements  as to the
manner of sale, notice and the availability of current public  information about
the  Company.  However,  a  person  who is  not  deemed  an  affiliate  and  has
beneficially owned such shares for at least three years is entitled to sell such
shares without regard to the volume or other resale requirements.

     Under Rule 701 of the  Securities  Act,  persons who  purchase  shares upon
exercise of options  granted  prior to the date of the IPO are  entitled to sell
such shares in reliance on Rule 144,  without  having to comply with the holding
period  requirements  of Rule 144 and,  in the case of  non-affiliates,  without
having  to comply  with the  public  information,  volume  limitation  or notice
provisions of Rule 144.  Affiliates are subject to all Rule 144 restrictions but
without  a  holding  period.  If all  the  requirements  of Rule  701  are  met,
approximately  375,000 shares subject to outstanding vested stock options may be
sold pursuant to such rule, subject to an agreement by all option holders not to
sell or otherwise  dispose of any shares of Common Stock until February 18, 1997
without Blair's prior written consent.

     Pursuant  to  registration  rights  granted  in the Bridge  Financing,  the
Company,  concurrently  with the IPO,  registered  for  resale  on behalf of the
Bridge  Financing  Investors,  the Bridge  Financing  Securities  subject to the
contractual  restriction that the Bridge  Financing  Investors agreed (i) not to
exercise  their  Warrants  prior to January  23, 1997 and (ii) not to sell their
Warrants except pursuant to the restrictions set forth below:

                                                          Percentage
                                                           Eligible
                  Lock-Up Period                          for Resale
                    -----------                             -------
Between 91 and 150 days after closing..................       25%
Between 151 and 210 days after closing.................       50%
Between 211 and 270 days after closing.................       75%
After 270 days after closing...........................      100%

   
      Pursuant to  registration  rights  granted in the Private  Placement,  the
Company is  registering  herewith for resale on behalf of the Private  Placement
Investors,   the  Private  Placement   Securities  subject  to  the  contractual
restriction that the Private Placement  Investors agreed not to sell the Private
Placement Securities except pursuant to the restrictions set forth below:
    




                                       50

<PAGE>


                                                          Percentage
                                                            Eligible
                  Lock-Up Period                          for Resale
                    -----------                             -------
Prior to November 30, 1996.............................        0%
Between December 1, 1996 and March 31, 1997............       50%
After April 1, 1977....................................      100%

   
     A majority of the Private  Placement  Investors also agreed not to exercise
their Warrants prior to August 1, 1997.
    

     Blair has demand and "piggy-back"  registration  rights with respect to the
securities  underlying the Unit Purchase  Options.  In addition,  the holders of
5,521,140  shares of Common  Stock and holders of  warrants to purchase  556,534
shares  of  Common  Stock  have  demand  and  "piggy-back"  registration  rights
commencing  either January or February 1997. See  "Description  of Securities --
Registration Rights."


                                  LEGAL MATTERS

     The validity of the securities  offered hereby has been passed upon for the
Company by Bachner, Tally, Polevoy & Misher LLP, New York, New York.


                                     EXPERTS

     The consolidated financial statements of Titan Pharmaceuticals, Inc. at and
for the years ended December 31, 1994 and 1995, appearing in this Prospectus and
Registration  Statement  have been  audited  by Ernst & Young  LLP,  independent
auditors,  as set forth in their report thereon appearing  elsewhere herein, and
are included in reliance  upon such report given upon the authority of such firm
as experts in accounting and auditing.


                             ADDITIONAL INFORMATION

     The  Company  has filed a  Registration  Statement  on Form SB-2  under the
Securities Act with the Commission in Washington, D.C. with respect to the Units
offered hereby.  This Prospectus,  which is part of the Registration  Statement,
does not contain all of the information set forth in the Registration  Statement
and the exhibits  thereto.  For further  information with respect to the Company
and the Units  offered  hereby,  reference  is hereby  made to the  Registration
Statement and such exhibits, which may be inspected without charge at the office
of the Commission at 450 Fifth Street, N.W.,  Washington,  D.C. 20549 and at the
regional  offices of the  Commission  located at Seven World Trade Center,  13th
Floor,  New York, New York 10048 and at 500 West Madison (Suite 1400),  Chicago,
Illinois 60661. Copies of such material may also be obtained at prescribed rates
from the Public Reference  Section of the Commission at 450 Fifth Street,  N.W.,
Washington,  D.C.  20549.  Statements  contained  in this  Prospectus  as to the
contents of any  contract  or other  document  referred  to are not  necessarily
complete and in each instance  reference is made to the copy of such contract or
document filed as an exhibit to the Registration Statement,  each such statement
being qualified in all respects by such reference.

                                       51


                           TITAN PHARMACEUTICALS, INC.
                          (a development stage company)
                   INDEX TO CONSOLIDATED FINANCIAL STATEMENTS

                                                                            Page
                                                                            ----

Report of Ernst & Young LLP, Independent Auditors.........................   F-2


Consolidated Financial Statements


  Consolidated Balance Sheets.............................................   F-3

  Consolidated Statements of Operations...................................   F-4

  Consolidated Statement of Stockholders' 
    Equity (Net Capital Deficiency).......................................   F-5

  Consolidated Statements of Cash Flows...................................   F-7

  Notes to Consolidated Financial Statements..............................   F-9





                                      F-1
<PAGE>

                REPORT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS


The Board of Directors and Stockholders
Titan Pharmaceuticals, Inc.

     We have  audited  the  accompanying  consolidated  balance  sheets of Titan
Pharmaceuticals,  Inc. (a development stage company) as of December 31, 1994 and
1995,  and the related  consolidated  statements  of  operations,  stockholders'
equity (net capital deficiency), and cash flows for the years ended December 31,
1994 and 1995 and the period from  commencement of operations (July 25, 1991) to
December 31, 1995 (not separately presented herein).  These financial statements
are the  responsibility of the Company's  management.  Our  responsibility is to
express an opinion on these financial statements based on our audits.

     We conducted  our audits in accordance  with  generally  accepted  auditing
standards.  Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement.  An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements.  An audit also includes
assessing the  accounting  principles  used and  significant  estimates  made by
management,  as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

     In our opinion,  the financial statements referred to above present fairly,
in  all  material  respects,   the  consolidated  financial  position  of  Titan
Pharmaceuticals,  Inc. (a  development  stage  company) at December 31, 1994 and
1995, and the consolidated  results of its operations and its cash flows for the
years  ended  December  31, 1994 and 1995 and the period  from  commencement  of
operations  (July 25,  1991) to  December  31,  1995 (not  separately  presented
herein) in conformity with generally accepted accounting principles.


                                        ERNST & YOUNG LLP



Palo Alto, California
February 23, 1996

                                      F-2
<PAGE>


                           TITAN PHARMACEUTICALS, INC.
                          (a development stage company)
                           CONSOLIDATED BALANCE SHEET

<TABLE>
<CAPTION>

                                                                                           December 31,
                                                                                   ----------------------------      September  30,
                                                                                      1994             1995              1996
                                                                                   -----------      -----------      ------------
                                                                                                                      (unaudited)
<S>                                                                                <C>              <C>              <C>        
Assets
Current Assets
Cash and cash equivalents ....................................................     $ 1,346,444      $   947,805       $   479,594
    Short-term investments ...................................................             --               --         16,933,986
    Prepaid sponsored research ...............................................          76,844              --                --
    Prepaid expenses and other current assets.................................          34,652           40,071            64,972
    Receivable from Ansan Pharmaceuticals, Inc................................             --            57,791            99,459
                                                                                   -----------      -----------       -----------
        Total current assets..................................................       1,457,940        1,045,667        17,578,011
Furniture and equipment, net..................................................       1,156,337          848,852           750,909
Deferred stock offering costs.................................................             --           522,299           159,702
Deferred financing costs......................................................         283,564          600,183           107,912
Investment in Ansan Pharmaceuticals, Inc......................................             --         1,589,826           889,989
Other assets..................................................................         170,887          125,344           199,259
                                                                                   -----------      -----------       -----------
                                                                                   $ 3,068,728      $ 4,732,171       $19,685,782
                                                                                   ===========      ===========       ===========
Liabilities and Stockholders' Equity (Net Capital Deficiency)
Current liabilities:
    Accounts payable..........................................................        $ 19,642        $ 714,896         $ 709,350
    Notes payable by Ingenex, Inc. - bridge financing.........................             --         1,500,000               --
    Notes payable by Titan Pharmaceuticals, Inc. - bridge financing...........             --         2,800,000               --
    Notes and advances payable to related parties.............................       1,200,000              --                --
    Accrued legal fees........................................................         323,477          691,368               --
    Accrued sponsored research................................................         767,604          304,202            36,566
    Other accrued liabilities.................................................         298,352          546,057           330,409
    Current portion of capital lease obligation...............................         172,981          226,709           255,195
    Current portion of technology financing - Ingenex, Inc....................             --           494,107           550,513
                                                                                   -----------      -----------       -----------
        Total current liabilities.............................................       3,682,056        7,277,339         1,882,033
Noncurrent portion of capital lease obligation................................       1,010,512          747,142           552,016
Noncurrent portion of technology financing - Ingenex, Inc.....................             --         1,289,313           869,081
Commitments
Minority interest - Series B preferred stock of Ingenex, Inc..................       1,241,032        1,241,032         1,241,032
Stockholders' Equity (net capital deficiency)
    Preferred stock, $0.001 par value per share; 30,000,000 shares authorized at
    December 31, 1994 and 1995 (5,000,000 at September 30, 1996) issuable in
    series:
    Series  A; 3,885,571 shares designated, 3,278,069 shares issued and
      outstanding at December 31, 1994 and 3,534,199 shares issued and
      outstanding at December 31, 1995, none at September 30, 1996; liquidation
      preference
      of $20,740,571 at December 31, 1995.....................................      16,457,649       17,763,978               --
    Series B; 2,440,513 shares designated, none issued or
      outstanding at December 31, 1994, 244,043 shares issued
      and outstanding at December 31, 1995; none at September 30,
      1996 liquidation preference of $1,650,000 at
      December  31, 1995......................................................             --         1,143,794               --
    Common stock, $0.001 par value per share; 50,000,000 shares
      authorized at December 31, 1994 and 1995 (30,000,000 at
      September 30, 1996); 1,408,519 shares, 1,548,519 shares, and
      12,323,279 shares issued and outstanding at December 31,
      1994 and 1995 and September 30, 1996, respectively......................          59,476          745,476        49,439,697
    Additional paid-in capital................................................         168,805        6,186,353         6,186,353
    Deferred compensation.....................................................              --         (418,000)         (352,000)
    Deficit accumulated during the development stage..........................     (19,550,802)     (31,244,256)      (40,132,430)
                                                                                   -----------      -----------       -----------
        Total stockholders' equity (net capital deficiency)...................      (2,864,872)      (5,822,655)       15,141,620
                                                                                   -----------      -----------       -----------
                                                                                   $ 3,068,728      $ 4,732,171       $19,685,782
                                                                                   ===========      ===========       ===========


</TABLE>
                                      F-3


<PAGE>

                           TITAN PHARMACEUTICALS, INC.
                          (a development stage company)
                      CONSOLIDATED STATEMENT OF OPERATIONS

<TABLE>
<CAPTION>

                                                                                                                     Period from
                                                                                                                     Commencement
                                                    Year ended December 31,         Nine Months Ended Sept. 30,     of Operations
                                                 --------------------------         ---------------------------   (July 25, 1991) to
                                                    1994              1995             1995             1996        Sept.  30, 1996
                                                 ----------         ---------        ---------        ---------       -----------
                                                                                    (unaudited)      (unaudited)      (unaudited)
<S>                                                <C>             <C>              <C>              <C>             <C>         
Grant revenue.............................         $      --       $    139,522     $     99,786     $    133,061    $    272,583
Costs and expenses:
    Research and development..............         10,601,726         5,201,507        4,402,178        4,023,836      26,037,457
    Acquired in-process
      research and development............                --            686,000              --               --          686,000
    General and administrative............          2,503,903         3,657,900        3,536,075        2,882,715       9,447,097
                                                 ------------      ------------     ------------     ------------    ------------ 
        Total costs and
          expenses........................         13,105,629         9,545,407        7,938,253        6,906,551      36,170,554
                                                 ------------      ------------     ------------     ------------    ------------ 
        Loss from operations..............        (13,105,629)       (9,405,885)      (7,838,467)      (6,773,490)    (35,897,971)
Other income (expense):
      Equity in loss of
        Ansan, Inc........................                --           (457,114)        (233,768)        (699,837)     (1,156,951)
      Interest income.....................            201,322            67,868           45,890          518,568         973,326
      Interest expense....................            (97,134)       (1,899,148)        (827,001)      (1,943,346)     (4,095,684)
                                                 ------------      ------------     ------------     ------------    ------------ 
      Other income
        (expense)-- net...................            104,188        (2,288,394)      (1,014,879)      (2,124,615)     (4,279,309)
                                                 ------------      ------------     ------------     ------------    ------------ 
Loss before minority interest.............        (13,001,441)      (11,694,279)      (8,853,346)      (8,898,105)    (40,177,280)
Minority interest in losses
  of subsidiaries.........................             27,266               825              --             9,931          44,850
                                                 ------------      ------------     ------------     ------------    ------------ 
          Net loss........................       $(12,974,175)     $(11,693,454)    $ (8,853,346)    $ (8,888,174)   $(40,132,430)
                                                 ============      ============     ============     ============    ============ 
Pro forma net loss per share..............            $ (1.86)          $ (1.54)         $ (1.18)
                                                 ============      ============     ============                                  
Shares used in computing
  proforma net loss per share.............          6,993,003         7,617,470        7,524,168
                                                 ============      ============     ============                                  
Net loss per share........................                                                                $ (1.37)
                                                                                                     ============                 
Shares used in computing net
  loss per share..........................                                                            10,463,149
                                                                                                     ============                 
</TABLE>





                                      F-4


<PAGE>

                           TITAN PHARMACEUTICALS, INC.
                          (a development stage company)
                 CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY
                            (Net Capital Deficiency)
<TABLE>
<CAPTION>
                                                                                                         Common Stock               
                                                 Series A                   Series B          --------------------------------------
                                             Preferred Stock            Preferred Stock            Class A              Class B    
                                            ------------------         -----------------      -----------------     ----------------
                                            Shares      Amount         Shares     Amount      Shares     Amount     Shares    Amount
                                            ------      ------         ------     ------      ------     ------     ------    ------
<S>                                       <C>         <C>               <C>         <C>        <C>       <C>        <C>       <C>
Net loss-Commencement of
  operations (July 25, 1991)
  to December 31, 1992 ................        --     $      --           --        $--           --     $  --        --       $ -- 
Issuance of shares of Class A
  common stock for cash to
  founders and investors in
  February 1993 for $0.005
  per share ...........................        --            --           --         --        998,367     5,853       --       --  
Issuance of shares of Class B
  common stockfor cash to an
  employee in February 1993
  for $0.005 per share ................        --            --           --         --           --        --       95,951     563
Issuance of Class A common  stock for
  cash to investors in March 1993
  for $0.297 per share, net of
  issuance costsof $1,503 .............        --            --           --         --        184,994    52,722       --       --  
Grant of shares of Class A
  common stock to an
  employee in June 1993 at
  $0.005 per share ....................        --            --           --         --         42,645       250       --       --  
Issuance of shares of Series A
  Preferred stock for cash to
  investors in November 1993
  for $5.868 per share, net of
  issuance costs of $2,759,851 ........   3,278,069    16,457,649         --         --           --        --         --       --  
Conversion of shares of Class B
  common stock into shares of
  Class A common stock ................        --            --           --         --        167,587       563    (95,951)   (563)
Forgiveness of notes
  payable to stockholder ..............        --            --           --         --           --        --         --       --  
Net loss -- Year ended
  December 31, 1993 ...................        --            --           --         --           --        --         --       --  
                                         ----------   -----------        ----   ---------   ----------   -------    -------    -----
Balances at December 31, 1993 .........   3,278,069    16,457,649         --         --      1,393,593    59,388       --       --  
Issuance of shares of Class A
  common stock for cash to a
  consultant in April 1994
  for $0.005 per share ................        --            --           --         --         14,926        88       --       --  
Increase in paid-in capital from
  issuance of common stock
  by Ingenex, Inc. ....................        --            --           --         --           --        --         --       --  
Net loss-- Year ended
  December  31, 1994 ..................        --            --           --         --           --        --         --       --  
                                         ----------   -----------        ----   ---------   ----------   -------    -------    -----
Balances at December 31, 1994 .........   3,278,069    16,457,649         --         --      1,408,519    59,476       --       --  


                                                                                                    Deficit                Total 
                                                                                                  Accumulated          Stockholders'
                                                                Additional                        During the               Equity
                                                                 Paid-In        Deferred          Development           (Net Capital
                                                                 Capital      Compensation           Stage               Deficiency)
                                                               -----------    ------------       ------------          -------------
<S>                                                            <C>                 <C>           <C>                   <C>      
Net loss-Commencement of
  operations (July 25, 1991)
  to December 31, 1992 ...............................         $       --           $-           $   (819,331)         $   (819,331)
Issuance of shares of Class A
  common stock for cash to
  founders and investors in
  February 1993 for $0.005
  per share ..........................................                 --           --                   --                   5,853
Issuance of shares of Class B
  common stockfor cash to an
  employee in February 1993
  for $0.005 per share ...............................                 --           --                   --                     563
Issuance of Class A common  stock for
  cash to investors in March 1993
  for $0.297 per share, net of
  issuance costsof $1,503 ............................                 --           --                   --                  52,722
Grant of shares of Class A
  common stock to an
  employee in June 1993 at
  $0.005 per share ...................................                 --           --                   --                     250
Issuance of shares of Series A
  Preferred stock for cash to
  investors in November 1993
  for $5.868 per share, net of
  issuance costs of $2,759,851 .......................                 --           --                   --              16,457,649
Conversion of shares of Class B
  common stock into shares of
  Class A common stock ...............................                 --           --                   --                    --
Forgiveness of notes
  payable to stockholder .............................               40,000         --                   --                  40,000
Net loss -- Year ended
  December 31, 1993 ..................................                 --           --             (5,757,296)           (5,757,296)
                                                               ------------       ----           ------------          ------------
Balances at December 31, 1993 ........................               40,000         --             (6,576,627)            9,980,410
Issuance of shares of Class A
  common stock for cash to a
  consultant in April 1994
  for $0.005 per share ...............................                 --           --                   --                      88
Increase in paid-in capital from
  issuance of common stock

  by Ingenex, Inc. ...................................              128,805         --                   --                 128,805
Net loss-- Year ended
  December  31, 1994 .................................                 --           --            (12,974,175)          (12,974,175)
                                                               ------------       ----           ------------          ------------
Balances at December 31, 1994 ........................              168,805         --            (19,550,802)           (2,864,872)
</TABLE>

                                      F-5

<PAGE>

<TABLE>

                                                     TITAN PHARMACEUTICALS, INC.
                                                    (a development stage company)
                                           CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY
                                                      (Net Capital Deficiency)
<CAPTION>
                                                                                                        Common Stock
                                            Series A                  Series B           ------------------------------------------
                                         Preferred Stock           Preferred Stock            Class A                   Class B
                                     -----------------------   ----------------------    ------------------       ------------------
                                       Shares      Amount        Shares      Amount      Shares      Amount       Shares      Amount
                                       ------      ------        ------      ------      ------      ------       ------      ------
<S>                                  <C>         <C>           <C>          <C>         <C>          <C>          <C>         <C>

Issuance of Series B preferred
  stock in February 1995 for
  cash at $6.761 per share, net
  of issuance costs of $506,206 ..         --           --       244,043    1,143,794         --           --           --     --
Increase in paid-in capital from
  issuance of warrants by
  Ingenex, Inc. in connection
  with bridge financing ..........         --           --          --           --           --           --           --     -- 
Increase in paid-in capital from
  issuance of warrants by
  Titan Pharmaceuticals, Inc. in
  connection with bridge
  financing ......................         --           --          --           --           --           --           --     -- 
Conversion of notes payable to
  related parties and accrued
  interest into shares of Series A
  preferred stock ................      256,130    1,306,329        --           --           --           --           --     -- 
Increase in paid-in capital from
  issuance of common stock
  by Ansan, Inc. .................         --           --          --           --           --           --           --     --
Deferred compensation related
  to grant of stock options, net
  of amortization ................         --           --          --           --           --           --           --     --
Issuance of Class A common
  stock to acquire minority
  interest of Theracell ..........         --           --          --           --        140,000      686,000         --     --
Net loss-- Year ended
  December 31, 1995 ..............         --           --          --           --           --           --           --     --
                                     ----------  -----------   ---------   ----------  -----------   ----------   ----------  ------
Balances at December 31, 1995 ....    3,534,199   17,763,978     244,043    1,143,794    1,548,519      745,476         --     --
Conversion of Preferred stock
  to common in January 1996 .......  (3,534,199) (17,763,978)   (244,043)  (1,143,794)   5,521,140   18,907,772         --     --
Issuance of common stock in
  initial public offering in
  January and February 1996
  (unaudited) net of issuance costs
  of $2,309,643 (unaudited) .......        --           --          --           --      3,680,000   15,850,357         --     --
Issuance of common stock
  upon exercise of stock option
  grants in April through July
  1996 (unaudited) ................        --           --          --           --         16,520       10,664         --     --
Issuance of common stock in
  private placement in July
  and August 1996, net of
  issuance costs of $2,205,392
  (unaudited) .....................        --           --          --           --      1,536,000   13,794,608         --     --
Issuance of common stock upon
  exercise of warrants in
  September 1996 (unaudited) ......        --           --          --           --         21,100      130,820         --     --
Amortization of deferred
   compensation (unaudited) .......        --           --          --           --           --           --           --     --
Net loss-nine months ended
  September 30, 1996
  (unaudited) .....................        --           --          --           --           --           --           --     --
                                     ----------  ------------  ---------   ----------  -----------  -----------   ----------  ------
Balances at
  September 30, 1996 ..............        --    $      --          --     $     --    $12,323,279  $49,439,697         --      --
                                     ==========  ============  =========   ==========  ===========  ===========   ==========  ======
</TABLE>


<TABLE>
<CAPTION>
                                                                       Deficit         Total
                                                                     Accumulated    Stockholders'
                                        Additional                    During the       Equity
                                          Paid-In       Deferred      Development   (Net Capital
                                          Capital     Compensation       Stage       Deficiency)
                                         ---------    ------------   ------------    ------------
<S>                                      <C>            <C>          <C>             <C>         

Issuance of Series B preferred
  stock in February 1995 for
  cash at $6.761 per share, net
  of issuance costs of $506,206 ...           --             --              --         1,143,794
Increase in paid-in capital from
  issuance of warrants by
  Ingenex, Inc. in connection
  with bridge financing ...........        600,000           --              --           600,000
Increase in paid-in capital from
  issuance of warrants by
  Titan Pharmaceuticals, Inc. in
  connection with bridge
  financing .......................      1,200,000           --              --         1,200,000
Conversion of notes payable to
  related parties and accrued
  interest into shares of Series A
  preferred stock .................           --             --              --         1,306,329
Increase in paid-in capital from
  issuance of common stock
  by Ansan, Inc. ..................      3,777,548           --              --         3,777,548
Deferred compensation related
  to grant of stock options, net
  of amortization .................        440,000       (418,000)           --            22,000
Issuance of Class A common
  stock to acquire minority
  interest of Theracell ...........           --             --              --           686,000
Net loss-- Year ended
  December 31, 1995 ...............           --             --       (11,693,454)    (11,693,454)
                                        ----------      ---------    ------------    ------------
Balances at December 31, 1995 .....      6,186,353       (418,000)    (31,244,256)     (5,822,655)
Conversion of Preferred stock
  to common in January 1996 .......           --             --              --              --
Issuance of common stock in
  initial public offering in
  January and February 1996
  (unaudited) net of issuance costs
  of $2,309,643 (unaudited) .......           --             --              --        15,850,357
Issuance of common stock
  upon exercise of stock option
  grants in April through July
  1996 (unaudited) ................                                                        10,664
Issuance of common stock in
  private placement in July
  and August 1996, net of
  issuance costs of $2,205,392
  (unaudited) .....................           --             --              --        13,794,608
Issuance of common stock upon
  exercise of warrants in
  September 1996 (unaudited) ......           --             --              --           130,820
Amortization of deferred
   compensation (unaudited) .......           --           66,000            --            66,000
Net loss-nine months ended
  September 30, 1996
  (unaudited) .....................           --             --        (8,888,174)     (8,888,174)
                                        ----------      ---------    ------------    ------------
Balances at
  September 30, 1996 ..............     $6,186,353      $(352,000)   $(40,132,430)   $ 15,141,620
                                        ==========      =========    ============    ============
</TABLE>
                                      F-6


<PAGE>

                           TITAN PHARMACEUTICALS, INC.
                          (a development stage company)
                      CONSOLIDATED STATEMENT OF CASH FLOWS
<TABLE>
<CAPTION>

                                                                                                                       Period from
                                                                                                                       Commencement
                                                             Years ended December 31,    Nine Months Ended Sept. 30,  of Operations
                                                           ---------------------------   --------------------------- (July 25, 1991)
                                                               1994           1995           1995           1996     to Sept.30,1996
                                                           ------------   ------------   ------------   ------------ ---------------
                                                                                          (unaudited)    (unaudited)    (unaudited)
<S>                                                        <C>            <C>            <C>            <C>            <C>          
Cash flows from operating activities
Net loss ................................................  $(12,974,175)  $(11,693,454)  $ (8,853,346)  $ (8,888,174)  $(40,132,430)
Adjustments to reconcile net loss to net  cash used
  in operating activities:
  Depreciation and amortization .........................       201,014        328,611        231,588        340,963        907,688
  Loss on disposal of assets ............................          --            8,947           --              227          9,174
  Accretion of discount on indebebtedness ...............          --          883,333        376,190      1,407,577      2,290,910
  Equity in loss of Ansan Pharmaceuticals, Inc. .........          --          457,114        233,768        699,837      1,156,951
  Minority interest .....................................       (27,266)          (825)          --           (9,931)       (44,850)
  Grant of common stock to employee .....................          --             --             --             --              250
  Issuance of common stock to acquire
    minority interest of Theracell, Inc. ................          --          686,000           --             --          686,000
  Changes in operating assets and liabilities:
    Prepaid sponsored research ..........................       198,794         76,844         36,621           --             --
    Prepaid expenses and other current assets ...........       (34,652)        (5,419)        22,581        (24,901)       (64,972)
    Receivable - Ansan Pharmaceuticals, Inc. ............          --          (57,791)       (58,383)       (41,668)       (99,459)
    Other assets ........................................       (32,311)        45,543         17,543        (73,915)      (204,224)
    Note receivable from employee .......................       150,000           --             --             --             --
    Accounts payable ....................................       (93,542)        29,444        564,959         (5,546)       943,540
    Accrued legal fees ..................................       210,994        367,891       (223,477)      (691,368)          --
    Accrued sponsored research ..........................       529,144       (364,320)      (340,371)      (267,636)       135,648
    Other accrued liabilities ...........................        36,338        639,039      1,099,454       (215,648)       721,743
                                                           ------------   ------------   ------------   ------------   ------------
Net cash used in operating activities ...................   (11,835,662)    (8,599,043)    (6,892,873)    (7,770,183)   (33,694,031)
                                                           ------------   ------------   ------------   ------------   ------------
Cash flows from investing activities
  Purchase of furniture and equipment ...................      (136,044)        (8,073)        (1,895)      (142,553)      (944,876)
  Purchases of short-term investments ...................          --             --             --      (22,883,986)   (46,816,479)
  Proceeds from sales of short-term investments .........     8,932,411           --             --        5,950,000     29,882,493
  Effect of deconsolidation of
    Ansan Pharmaceuticals, Inc. .........................          --             --         (135,934)          --         (135,934)
                                                           ------------   ------------   ------------   ------------   ------------
Net cash provided by (used in) investing activities .....     8,796,367       (144,007)      (137,829)   (17,076,539)   (18,014,796)
                                                           ------------   ------------   ------------   ------------   ------------
Cash flows from financing activities
  Issuance of common stock ..............................            88           --             --       30,283,748     30,342,974
  Deferred offering costs ...............................          --         (522,299)          --         (134,702)      (657,001)
  Deferred financing costs ..............................      (283,564)      (526,684)      (184,239)          --         (810,248)
  Issuance of preferred stock ...........................          --        1,143,794      1,143,794           --       17,601,443
  Proceeds from notes payable ...........................          --             --             --             --          465,000
  Repayment of notes payable ............................          --             --             --             --         (425,000)
  Proceeds from notes and advances payable
    to related parties ..................................          --             --          200,000           --        2,216,500
  Repayment of notes payable to related parties .........          --             --             --             --       (1,016,500)
  Proceeds for Ansan Pharmaceuticals, Inc. ..............
    bridge financing ....................................     1,425,000      1,425,000      1,425,000           --        1,425,000
  Proceeds from Titan and Ingenex, Inc. .................
    bridge financing ....................................     5,250,000      1,500,000      1,500,000           --        5,250,000
  Repayment of Titan and Ingenex, Inc. ..................          --       (5,250,000)          --       (5,250,000)    (5,250,000)
  Proceeds from capital lease bridge financing ..........       658,206           --             --             --          658,206
  Payments of principal under capital lease obligation ..       (69,949)      (209,642)      (158,338)      (166,640)      (446,231)
  Proceeds from Ingenex, Inc. technology financing ......          --        2,000,000      2,000,000           --        2,000,000
  Principal payments on Ingenex, Inc. ...................
    technology financing ................................          --         (216,580)      (103,786)      (363,826)      (580,406)
  Increase in minority interest from  issuances of
    preferred stock by Ingenex, Inc. ....................     1,241,032           --             --             --        1,241,032
  Issuance of common stock by subsidiaries ..............       156,071            822           --            9,931        173,652
                                                           ------------   ------------   ------------   ------------   ------------
Net cash provided by financing activities ...............     1,701,884      8,344,411      5,822,431     24,378,511     52,188,125
                                                           ------------   ------------   ------------   ------------   ------------

Net increase (decrease) in cash and cash equivalents ....    (1,337,411)      (398,639)    (1,208,271)      (468,211)       479,594
Cash and cash equivalents at beginning of period ........     2,683,855      1,346,444      1,346,444        947,805           --
                                                           ------------   ------------   ------------   ------------   ------------
Cash and cash equivalents at end of period ..............  $  1,346,444   $    947,805   $    138,173   $    479,594   $    479,594
                                                           ============   ============   ============   ============   ============
Supplemental cash flow disclosure
Interest paid ...........................................  $     81,317   $    370,864   $    282,131   $    501,073   $  1,109,310
                                                           ============   ============   ============   ============   ============
Conversion of notes payable to related parties and
  accrued interest into Series A preferred stock ........  $       --     $ (1,306,329)  $ (1,306,329)  $       --     $ (1,306,329)
                                                           ============   ============   ============   ============   ============
Acquisition of furniture and equipment pursuant
  to capital lease ......................................  $    595,236   $       --     $       --     $       --      $    595,236
                                                           ============   ============   ============   ============   ============
</TABLE>



                                       F-7
<PAGE>


                           Titan Pharmaceuticals, Inc.
                          (a development stage company)
                   Notes to Consolidated Financial Statements
                 (Information at September 30, 1996 and for the
            nine-month period ended September 30, 1996 is unaudited)



1.  Organization and Summary of Significant Accounting Policies

   The Company and its Several Development Stage Subsidiaries


     Titan  Pharmaceuticals,  Inc.  (the  "Company"  individually  or  with  its
consolidated  subsidiaries,  as the sense requires) was incorporated in February
1992 in the State of Delaware. It is the holding company for several development
stage biotechnology companies ("the Operating Companies"). The development stage
companies,  which rely  significantly  on third  parties  to  conduct  sponsored
research, are Ansan Pharmaceuticals,  Inc. ("Ansan"), Ingenex, Inc. ("Ingenex"),
Theracell, Inc. ("Theracell"),  and ProNeura, Inc. ("ProNeura") and Trilex, Inc.
("Trilex," formed in May 1996), each of which continues in operation, and Geneic
Sciences, Inc. ("Geneic"), which ceased operation in September 1995.

   Ansan Pharmaceuticals, Inc.

     Ansan was  incorporated  in November 1992 to engage in the  development  of
novel  analogs of butyric acid for the  treatment of cancer and other  disorders
characterized  by  abnormal  cellular  growth  and  differentiation.  It  was  a
majority-owned  consolidated subsidiary until August 1995. In August 1995, Ansan
completed an initial public  offering of its securities.  Such offering  reduced
the Company's  ownership in Ansan from  approximately 95% to approximately  44%.
Since August 1995,  the Company has accounted for its  investment in Ansan using
the equity method.  Concurrent with the Ansan public offering, Ansan granted the
Company a one-year option to purchase up to 400,000 shares of Ansan common stock
with an exercise  price of $6.00 per share.  In July 1996,  Ansan  extended  the
option  through  September  8, 1996,  in order to allow the Company and Ansan an
opportunity to renegotiate the terms of the option.  The two companies  continue
to negotiate and Titan may again hold a majority interest in Ansan.


     In connection  with the Ansan  offering,  of the 1,212,654  shares of Ansan
that Titan owns,  346,472  shares have been placed in escrow.  The escrow shares
are not  transferable or assignable but may be voted.  The escrow shares will be
released from escrow if, and only if, Ansan satisfies  certain earnings or share
price  criteria.  If the  conditions  are not met by March 31, 2000,  the escrow
shares will be canceled and contributed to Ansan's capital.

   Ingenex, Inc.


     Ingenex was incorporated in July 1991 and  reincorporated  in June 1992. It
is engaged in the  development of gene-based  therapeutics  and the discovery of
medically  important  genes for the treatment of cancer and viral  diseases.  In
September  1994,  Ingenex  issued shares of its Series B  convertible  preferred
stock to a third party for $1,241,032,  net of issuance costs.  This transaction
reduced the Company's  ownership of Ingenex from approximately 82% in the second
quarter  of fiscal  1994 to  approximately  61% at  December  31,  1994 (or from
approximately  94% to approximately  72% if conversion of all Ingenex  preferred
stock is  assumed).  See Note 5 as to bridge  notes due December 31, 1995 in the
principal  amount of  $1,500,000,  which  Ingenex did not repay by that date. In
June  1996,  Ingenex  issued  981,818  shares  of common  stock to the  Company,
converting  $5,400,000  of debt  payable to the Company to equity.  Also in June
1996, and in consideration  of a payment to Ingenex of $100,000,  Ingenex issued
to the Company an option to purchase  approximately an additional 315,789 shares
of common stock which will have an exercise price per share equal to the initial
public  offering  price of Ingenex  common stock and an additional  option and a
right of first refusal with respect to future issuances of common stock in order
for the Company to maintain  ownership of a majority of the  outstanding  common
stock. At September 30, 1996, the Company owned 81% of Ingenex.


   Theracell, Inc.

     Theracell was incorporated in November 1992 to engage in the development of
novel treatments for various neurologic disorders through the transplantation of
neural  cells and  neuron-like  cells  directly  into the brain.  The  Company's
ownership in Theracell was 85% through  November 1995, at which time the Company
entered into an agreement with the minority  stockholders of Theracell  pursuant
to which 140,000  shares of the Company's  stock 



                                      F-8
<PAGE>


                           Titan Pharmaceuticals, Inc.
                          (a development stage company)
                   Notes to Consolidated Financial Statements
                 (Information at September 30, 1996 and for the
            nine-month period ended September 30, 1996 is unaudited)



1.  Organization and Summary of Significant Accounting Policies (continued)


were issued in exchange for all the outstanding shares of Theracell common stock
held by them. In connection with the issuance of the 140,000 shares, the Company
recorded a charge for acquired  in-process research and development of $686,000.
In November 1995, the former minority  stockholders of Theracell were granted an
option to acquire 5% of the issued and  outstanding  capital stock of Theracell.
These  options can be exercised at a price of $1.59 per share within a period of
three (3) years from  January 18,  1996.  Commencing  thirty (30) days after the
date Theracell's  shares are first publicly traded, the Theracell options may be
subject to redemption under certain conditions by Theracell on thirty (30) days'
written notice at a redemption  price of $0.05 per share if the "Closing  Price"
(as defined therein) of Theracell's common stock for any thirty (30) consecutive
trading  days  ending  within  fifteen  (15) days of the  notice  of  redemption
averages in excess of $3.18 per share.  At September 30, 1996, the Company owned
99% of Theracell.


   ProNeura, Inc.


     ProNeura was  incorporated  in October 1995 to engage in the development of
cost effective,  long term treatment  solutions to neurological  and psychiatric
disorders  through an implantive drug delivery system.  At December 31, 1995 and
September 30, 1996, the Company owned 79% of ProNeura.

   Trilex Pharmaceuticals, Inc.

     Trilex was  incorporated  in May 1996 to engage in research and development
of cancer therapeutic vaccines utilizing anti-idiotypic antibody technology.  At
September 30, 1996, the Company owned 100% of Trilex.


   Geneic Sciences, Inc.

     Geneic had  conducted  research  and  development  activities  pursuant  to
sponsored  research and  licensing  agreements  with a  university,  which was a
minority stockholder of Geneic. In September 1995 the Company and the university
terminated the agreements,  at which time all rights in the technology  licensed
from the  university  reverted to the  university  and the minority  interest in
Geneic held by the university was  contributed to the capital of Geneic.  Geneic
ceased operations at such time.

   Initial Public Offering

     In January 1996, the Company  completed its initial public offering ("IPO")
of 3,200,000  units  (consisting of one share of common stock and one redeemable
warrant to acquire  one share of common  stock -- see Note 7)  resulting  in net
proceeds of  approximately  $14.4 million  ($16.6  million after exercise of the
underwriter's  overallotment  option as to 480,000 units in February  1996).  In
connection  with the IPO,  the  underwriter  was  granted  an option to  acquire
320,000 additional units at a price of $6.50 per unit.

   Basis of Presentation

     The accompanying  consolidated financial statements include the accounts of
the Company and the majority owned Operating  Companies.  Ansan was consolidated
until its initial public offering in August 1995. All  significant  intercompany
transactions and accounts have been eliminated in  consolidation.  The financial
statements  of the Company  include the results of Ingenex from the date Ingenex
was incorporated (July 25, 1991), as the entities were under common control.

     The  activities  of the Company have  primarily  consisted of  establishing
offices and research facilities,  recruiting personnel,  conducting research and
development,  performing  business and financial  planning and raising  capital.
Accordingly,  the  Company  is  considered  to be in the  development  stage and
expects to incur increasing losses and require additional financial resources to
achieve commercialization of its products.

                                      F-9
<PAGE>


                           Titan Pharmaceuticals, Inc.
                          (a development stage company)
                   Notes to Consolidated Financial Statements
                 (Information at September 30, 1996 and for the
            nine-month period ended September 30, 1996 is unaudited)



1.  Organization and Summary of Significant Accounting Policies (continued)


     The  Company  anticipates  working  on a number  of  long-term  development
projects which will involve experimental and unproven technologies. The projects
may require many years and substantial  expenditures prior to commercialization.
Therefore, the Company will need to obtain additional funds from the issuance of
equity or debt  securities,  from corporate  partners,  or from other sources to
continue its research  and  development  activities,  fund  operating  expenses,
pursue  regulatory   approvals  and  build   production,   sales  and  marketing
capabilities,  as necessary. While the Company believes that the proceeds of the
IPO and the Private  Placement  (see Note 11) will be  sufficient to sustain its
planned  operations  through at least December 31, 1997,  thereafter the Company
will be required to seek additional  financing to continue its activities beyond
the near term,  but there can be no  assurance  that the Company will be able to
obtain additional funds.


     The Company effected a 0.461308687-for-one  reverse stock split in February
1995, and a 0.36977472-for-one reverse stock split in November 1995. The reverse
stock splits covered each class and series of the Company's  stock,  options and
warrants outstanding.  The accompanying  financial statements have been adjusted
to retroactively reflect the stock splits for all periods presented.


     The interim  financial  statements  at September  30, 1996 and for the nine
month  periods ended  September 30, 1995 and 1996 are unaudited but include,  in
the opinion of  management,  all  adjustments  (consisting  of normal  recurring
accruals) considered  necessary for a fair presentation.  Results of any interim
period are not necessarily indicative of results for the full fiscal year.


   Cash, Cash Equivalents and Short-Term Investments

     The Company  considers all highly liquid  investments  with a maturity from
the date of purchase of 90 days or less to be cash equivalents.  At December 31,
1994 and 1995, the Company had $1,089,525  and $855,114  respectively,  in money
market mutual funds which invest in various U.S. government securities including
Treasury  bills,  notes and bonds.  The funds seek to maintain a constant $1 net
asset value per share. These amounts are included in cash and cash equivalents.


     At  September  30,  1996,  short term  investments  is comprised of auction
market  preferred funds and money market funds.  Such investments are carried at
cost, which approximates their fair value.


     The Company's  investment policy is to maintain liquidity and ensure safety
of principal.

   Furniture and Equipment

     Furniture  and  equipment  is stated at cost and is  depreciated  using the
straight-line  method over the estimated useful lives of the assets ranging from
three to five years.  Assets under capital leases are amortized over the shorter
of the lease term or life of the asset.

   Revenue

     Revenue  consists  of revenue  from  government  grants  which  support the
Company's research effort in specific research projects.  These grants generally
provide for  reimbursement  of approved costs incurred as defined in the various
agreements.

   Sponsored Research

     Research and development expenses under sponsored research arrangements are
recognized as the related  services are  performed,  generally  ratably over the
period of service. Payments for license fees are expensed when paid.

   Stock-based Compensation

     The Company  recognizes no  compensation  expense for stock options granted
unless the grant price is less than the fair value at the date of grant.

     The Company recorded  $440,000 in deferred  compensation for the difference
between the grant price and the deemed fair value of the Company's  common stock
for  certain  options  granted  in the  12-month  period  prior to the 


                                      F-10
<PAGE>


                           Titan Pharmaceuticals, Inc.
                          (a development stage company)
                   Notes to Consolidated Financial Statements
                 (Information at September 30, 1996 and for the
            nine-month period ended September 30, 1996 is unaudited)



1.  Organization and Summary of Significant Accounting Policies (continued)

IPO. The deferred  compensation  is being  amortized to expense over the vesting
period of the options, generally five years.

   Per Share Data


      For  purposes  of  computing  per  share  data for the nine  months  ended
September  30, 1996,  the net loss has been  increased  by a  $5,431,871  deemed
dividend (see Note 7). Except as noted below,  per share data is computed  using
the weighted  average  number of common shares  outstanding.  Common  equivalent
shares are excluded from the computation as their effect is antidilutive, except
that,   pursuant  to  the  Securities  and  Exchange  Commission  ("SEC")  Staff
Accounting  Bulletins,  common  and common  equivalent  shares  (stock  options,
warrants and  preferred  stock)  issued  during the period  commencing 12 months
prior to the  initial  filing of the IPO at  prices  below  the  assumed  public
offering price have been included in the calculation as if they were outstanding
for all periods  through  December 31, 1995 (using the treasury stock method for
stock options and warrants and the if-converted method for preferred stock).


     Per share information calculated on the above noted basis is as follows:


                                      Year ended December 31,     Nine months
                                      -----------------------   ended Sept. 30,
                                        1994           1995          1996
                                      ---------     ---------    -------------
Net loss per share ..............     $   (5.64)    $   (5.03)   $       (3.84)
                                      =========     =========    =============
Shares used in computing
  net loss per share ............     2,302,048     2,323,885        2,306,395
                                      =========     =========    =============


     Pro forma  loss per share has been  computed  as  described  above and also
gives  effect,  pursuant  to  SEC  policy,  to  common  equivalent  shares  from
convertible preferred stock issued more than 12 months from the proposed initial
public  offering that  automatically  converted upon completion of the Company's
initial public offering (using the  if-converted  method) from the original date
of issuance.

   Use of Estimates

     The  preparation  of financial  statements  in  conformity  with  generally
accepted  accounting  principles  requires  management  to  make  estimates  and
assumptions  that affect the amounts  reported in the financial  statements  and
accompanying  notes.  Actual  results  could  differ  from those  estimates.  

2. Investment in Ansan, Inc.

     Summarized  financial  information  for Ansan,  which was a  majority-owned
consolidated  subsidiary  until August  1995,  at which time it became an equity
method investee of the Company, is as follows:

Financial position at December 31, 1995:
     Assets:
       Cash and cash equivalents ..............................    $  3,854,312
       Other ..................................................         126,333
                                                                   ------------
                                                                      3,980,645

     Less liabilities
       Payable to Company .....................................          57,791
       Other ..................................................         280,172
                                                                   ------------
                                                                        337,963
                                                                   ------------
     Stockholders' equity:
       Common stock--2,786,798 shares issued and outstanding ..      10,678,061
       Deferred compensation ..................................        (236,118)
       Accumulated deficit ....................................      (6,799,261)
                                                                   ------------
                                                                   $  3,642,682
                                                                   ============
     Company share
         1,212,654 shares (approximately 44%) .................    $  1,589,826
                                                                   ============

                                      F-11
<PAGE>


                           Titan Pharmaceuticals, Inc.
                          (a development stage company)
                   Notes to Consolidated Financial Statements
                 (Information at September 30, 1996 and for the
            nine-month period ended September 30, 1996 is unaudited)


2. Investment in Ansan, Inc. (continued)

      Operating results and accumulated deficit:
<TABLE>
<CAPTION>
                                                                                                                          As an
                                                                            As consolidated subsidiary               equity investee
                                                                                   of Company                           of Company
                                                                     ---------------------------------------          --------------
                                                                                                Seven months             August
                                                                        Year ended                 ended                 through
                                                                     December 31, 1994         July 31, 1995          December 1995
                                                                     -----------------         -------------          --------------
<S>                                                                     <C>                     <C>                     <C>        
Cost and expenses
Research and development ...................................            $ 2,572,915             $   917,290             $   503,472
General and administrative .................................                568,344                 719,103                 328,692
                                                                        -----------             -----------             -----------
Loss from operations .......................................             (3,141,259)             (1,636,393)               (832,164)
Interest income (expense), net .............................                 13,367                (141,168)                211,681
                                                                        -----------             -----------             -----------
Net loss ...................................................             (3,127,892)             (1,777,561)             (1,043,845)
Accumulated deficit
Beginning of period ........................................               (849,963)             (3,977,855)             (5,755,416)
                                                                        -----------             -----------             -----------
End of period ..............................................            $(3,977,855)            $(5,755,416)            $(6,799,261)
                                                                        ===========             ===========             ===========
Company's share of net loss:

As consolidated subsidiary .................................            $(3,127,892)            $(1,777,561)
                                                                        ===========             ===========
As equity investee (approximately 44%) .....................                                                            $  (457,114)
                                                                                                                        ===========


      Changes in capital stock:
</TABLE>
<TABLE>
<CAPTION>
                                                                              Company's             Investment
                                                                             Investment              by Others              Total
                                                                             -----------           -----------           -----------
<S>                                                                          <C>                   <C>                   <C>        
Inception through December 31, 1994
  and July 31, 1995 ...............................................          $ 2,473,556           $   447,891           $ 2,921,447
    Shares ........................................................              860,097                60,510               920,607
    Percent .......................................................                   93%                    7%
August 1995 contribution of
  indebtedness to capital .........................................            1,551,252                  --               1,551,252
    Shares ........................................................              352,557                  --                 352,557
Initial public offering in August 1995 ............................                 --               6,199,251             6,199,251
    Shares ........................................................                 --               1,495,000             1,495,000
Amortization of deferred compensation on options
  issued below market prior to offering ...........................                6,111                 7,778                13,889
                                                                             -----------           -----------           -----------
At December 31, 1995 ..............................................          $ 4,030,919           $ 6,410,820           $10,678,061
                                                                             ===========           ===========           ===========
    Shares ........................................................            1,212,654             1,555,510             2,768,164
                                                                             ===========           ===========           ===========
    Percent .......................................................                   44%                   56%

</TABLE>

                                      F-12
<PAGE>


                           Titan Pharmaceuticals, Inc.
                          (a development stage company)
                   Notes to Consolidated Financial Statements
                 (Information at September 30, 1996 and for the
            nine-month period ended September 30, 1996 is unaudited)


2. Investment in Ansan, Inc. (continued)

Company's investment at December 31, 1995:
Through July 1995 as a consolidated subsidiary
  Contributed capital ..........................................    $ 2,473,556
  Less accumulated losses ......................................     (5,755,416)
                                                                    -----------
                                                                     (3,281,860)

As an equity investee after July 1995

  Contribution of indebtedness to capital ......................      1,551,252
  Adjustment for equitable share of initial public offering ....      3,777,548
  Less 44% of losses August through December 1995 ..............       (457,114)
                                                                    -----------
                                                                    $ 1,589,826
                                                                    ===========


     The units sold by Ansan in its initial  public  offering  consisted  of one
share of common stock, one redeemable Class A warrant and one redeemable Class B
warrant.  These  securities  are  separately  but thinly  traded.  The Company's
investment in Ansan  consists  solely of shares of common stock.  As of December
31,  1995,  the closing bid price on Ansan's  common  stock was $2.75 per share.
Based on this  closing  bid  price,  the  fair  market  value  of the  Company's
investment  in Ansan's  common  stock on December 31, 1995 would  approximate  $
3,334,000.  As of September 30, 1996, the closing bid price was $3.00 per share.
Based on this  closing  bid  price,  the  fair  market  value  of the  Company's
investment in Ansan would approximate $3,638,000.


3.  Furniture and Equipment

     Furniture and equipment consists of the following at December 31:

                                                         1994           1995
                                                     -----------    -----------
Furniture and office equipment ...................   $   137,971    $   136,366
Laboratory equipment .............................     1,066,651      1,062,302
Computer equipment ...............................       184,864        189,179
                                                     -----------    -----------
                                                       1,389,486      1,387,847
Less accumulated depreciation and amortization ...      (233,149)      (538,995)
                                                     -----------    -----------
  Furniture and equipment, net ...................   $ 1,156,337    $   848,852
                                                     ===========    ===========


     Depreciation expense was $201,014 and $306,611 for the years ended December
31, 1994 and 1995, respectively.

4.  Sponsored Research and License Agreements

     The Operating  Companies have entered into various agreements with research
institutions,  universities,  and other entities for the performance of research
and development  activities and for the acquisition of licenses related to those
activities. Expenses under these agreements totaled $4,758,159 and $1,024,283 in
the years ended December 31, 1994 and 1995, respectively.

     At December 31, 1995, the aggregate commitments the Company has under these
agreements, including minimum license payments, are as follows:

 1996...................................................          $ 589,040
 1997...................................................            328,500
 1998...................................................            165,500
                                                                  ---------
                                                                 $1,083,040
                                                                  =========

                                      F-13
<PAGE>


                           Titan Pharmaceuticals, Inc.
                          (a development stage company)
                   Notes to Consolidated Financial Statements
                 (Information at September 30, 1996 and for the
            nine-month period ended September 30, 1996 is unaudited)


4.  Sponsored Research and License Agreements (continued)

     After 1998, the Company must make annual payments  aggregating $150,500 per
year to maintain certain of their licenses.  Certain of the licenses provide for
the payment of  royalties  by the Company on future  product  sales,  if any. In
addition,  in  order  to  maintain  license  and  other  rights  during  product
development,  the Company  must comply with  various  conditions  including  the
payment of patent related costs and obtaining  additional equity  investments by
specified dates.

     In May  1996,  Trilex  signed  an  exclusive  license  agreement  with  the
University of Kentucky  Research  Foundation  (the  "Kentucky  Agreement").  The
Kentucky  Agreement  obligates  Trilex to fund  research  at the  University  of
Kentucky  in the  amount  of  $350,000  per year for five  years.  The  Kentucky
Agreement also provides for the payment of certain license fees totaling up to a
maximum of $470,000 as well as royalties based on net sales of licensed products
by Trilex or any sublicensees.

5.  Debt Obligations

   Notes and Advances Payable to Related Parties

     In March and April  1993,  the  Company  borrowed  $500,000  and  $700,000,
respectively,  from  stockholders.  The unsecured  notes payable had an interest
rate of 10% per annum  and were  payable  upon  demand.  The  notes and  accrued
interest were  convertible  at the option of the holders into shares of Series A
preferred  stock at a  conversion  price of $5.11 per  share.  Additionally,  in
connection with these  transactions,  the stockholders  were granted warrants to
purchase 23,537 shares of Series A preferred stock at an exercise price of $6.44
per  share.  Upon the close of the IPO these  warrants  became  exercisable  for
33,682 shares of common stock at a price of $4.50 per share. The warrants expire
in January 1999. In March 1994, the stockholders  gave notice of their intention
to convert the notes and $106,329 of accrued  interest at December 31, 1993 into
256,130 shares of Series A preferred stock.  However,  the underlying  shares of
preferred stock were not issued until June 1995.

     From August through October 1995,  entities managed by or affiliated with a
director of the Company  loaned the Company an aggregate of $250,000.  The notes
payable bore  interest at the rate of 12% per annum and were made payable on the
earlier of the closing of an IPO of the Company's  common stock or one year from
the date of issuance. See "Titan Bridge Financing Notes Payable" below.

   Ingenex Technology Financing Agreement

     In  January  1995,  Ingenex  assigned  its  rights  under  certain  of  its
technology license  agreements to a capital  management  partnership in exchange
for  $2,000,000.  Ingenex has  licensed  back the  technology  for  research and
development  purposes and has agreed to make monthly payments of $25,000 through
July 1995 and $60,060  from August  1995  through  January  1999.  Each  payment
includes implicit  interest at approximately  11.6% per annum. At the end of the
payment  term,  the assigned  license  rights can be  reacquired  by Ingenex for
$1.00.  As part of the financing  agreement,  the Company  issued to the capital
management  partnership  a warrant to purchase  112,375  shares of the Company's
Common  Stock at a price of $3.56 per share.  The  warrant  expires  January 31,
2002. The capital  management  partnership  has agreed to not sell,  assign,  or
transfer any  securities of the Company  without  prior  written  consent of the
Company's underwriter.  In addition, it has waived any registration rights for a
period of 13 months. Ingenex incurred a finder's fee of $140,000 related to this
transaction which has been capitalized as deferred  financing costs and is being
amortized  over  48  months.  An  additional  $45,000  of  fees  has  also  been
capitalized  and is being  amortized over 48 months.  The Company has guaranteed
payment of the loan and has issued  finder and director  warrants to purchase an
aggregate of 7,395 shares of the Company's  common stock at an exercise price of
$3.25 per share. The warrants expire in January 2002.


                                      F-14
<PAGE>



                           Titan Pharmaceuticals, Inc.
                          (a development stage company)
                   Notes to Consolidated Financial Statements
                 (Information at September 30, 1996 and for the
            nine-month period ended September 30, 1996 is unaudited)


5.  Debt Obligations (continued)

   Ingenex Bridge Financing Notes Payable

     In May 1995, Ingenex completed a bridge financing pursuant to which Ingenex
issued  $1,500,000  principal  amount of bridge notes payable and 300,000 bridge
warrants.  Net proceeds from the bridge financing were approximately  $1,305,000
(after  expenses of the bridge  financing).  The bridge notes  payable were due,
together with  interest at the rate of 9% per annum,  on the earlier of December
31, 1995 or upon the consummation of an IPO of Ingenex common stock. Ingenex did
not complete an initial public  offering prior to the December 31, 1995 due date
of the bridge notes and was not otherwise  able to repay the notes by that date.
Therefore  Ingenex and the Company  negotiated  an extension of the bridge notes
until  February  28,  1996.  The bridge  notes were  subsequently  repaid by the
Company with proceeds from the IPO in January 1996. The bridge warrants  entitle
the holders  thereof to purchase one share of Ingenex common stock until May 30,
2000 at a price of $2.50 per share.  The bridge  warrants  have been  assigned a
value of  $600,000.  This amount was also  reflected as a discount on the bridge
notes and was  accreted as  additional  financing  (interest)  expense  over the
initial term of the notes payable.

   Titan Bridge Financing Notes Payable

     In October 1995, the Company completed a bridge financing pursuant to which
the Company  issued  $3,750,000  principal  amount of bridge  notes  payable and
1,875,000 bridge warrants.  A bridge warrant entitles the holder to purchase one
share of the Company's  common stock at a price of $3.00 per share. The warrants
expire  October 13,  2000.  This amount  includes  the $250,000 for loans to the
Company from August through October 1995 (noted above) which were converted,  in
accordance with the terms of the loans, into $250,000 principal amount of bridge
notes  payable  and  125,000  bridge  warrants.  Net  proceeds  from the  bridge
financing were  approximately  $3,262,500 (after expenses of the issuance).  The
bridge notes,  together with interest at the rate of 10% per annum,  were repaid
upon the  consummation  of the IPO in January  1996.  The bridge  warrants  were
assigned a value of  $1,200,000.  This amount was reflected as a discount on the
bridge notes and was accreted as additional  financing  (interest)  expense over
the term of the notes until the IPO.

     Expenses  of the  bridge  financing,  including  $487,500  in  commissions,
totaled $577,995,  which has been capitalized as deferred  financing costs. Upon
consummation  of the IPO, the  unamortized  portion of the debt discount and the
deferred financing costs were written off in January 1996.

   Fair Value of Debt Obligations

     The carrying amounts of the Ingenex technology financing and Ingenex bridge
financing  notes  payable  approximate  fair value,  which was  estimated  using
discounted cash flow analysis,  based on Ingenex' current incremental  borrowing
rate for similar  types of borrowing  arrangements.  The carrying  amount of the
bridge financing notes payable of the Company reflects the unamortized discount.
However,  the  fair  value of these  instruments  at  December  31,  1995  would
approximate $3.7 million,  as they were repaid out of the proceeds of the IPO in
January 1996.

6.  Leases

     The Company  leases  facilities  under an  operating  lease that expires in
March 1996.  In March 1996, a new lease was signed which  expires in April 2000.
Rent expense was  $600,974  and  $550,015 for years ended  December 31, 1994 and
1995, respectively.

     The Company is obligated under capital leases for certain equipment with an
aggregate cost of $1,253,441 at December 31, 1994 and 1995. Amortization expense
for leased assets is included in  depreciation  and  amortization  expense.  The
leases require the Company to purchase all of the equipment  upon  expiration of
the leases at 25% of the original equipment cost.

                                      F-15
<PAGE>



                           Titan Pharmaceuticals, Inc.
                          (a development stage company)
                   Notes to Consolidated Financial Statements
                 (Information at September 30, 1996 and for the
            nine-month period ended September 30, 1996 is unaudited)


6.  Leases (continued)


     The following is a schedule of future  minimum  lease  payments at December
31, 1995:

                                                     Operating        Capital
                                                       Lease           Leases
                                                     ----------      ----------
1996 ..........................................      $  222,744      $  365,508
1997 ..........................................          74,220         365,508
1998 ..........................................          74,220          519,60
1999 ..........................................          24,740            --
                                                     ----------      ----------
Total minimum payments required ...............      $  395,924       1,250,625
                                                     ==========      ==========
Less amount representing interest .............                        (276,774)
                                                                     ----------
Present value of future lease payments ........                         973,851
Less current portion ..........................                        (226,709)
                                                                     ----------
                                                                     $  747,142
                                                                     ==========
7.  Stockholders' Equity

     Each  share  of  Series A and  Series  B  preferred  stock  was  originally
convertible into (and carried voting rights equal to) one share of common stock.
In October 1995, pursuant to the terms of the Series B preferred stock agreement
and in  contemplation  of the IPO,  the  board  of  directors  and  stockholders
approved a change in the  conversion  ratio of Series A and  Series B  preferred
stock  providing  that in the event of an IPO of common stock on or before March
31,  1996,   each  share  of  Series  A  and  Series  B  preferred  stock  would
automatically be converted into  1.4310444107 and 1.8993878755  shares of common
stock,  respectively (the "IPO Conversion Ratio").  The IPO Conversion Ratio was
not higher than the ratio which  otherwise  would have  applied in an IPO during
this period. In conjunction with the IPO in January 1996 all outstanding  shares
of Series A and Series B preferred stock were converted into 5,521,140 shares of
common stock.

     Holders of shares of Series A and Series B preferred stock were entitled to
receive dividends prior and in preference to any holders of common stock, at the
rate of $1.76  per  share of  Series A  preferred  stock  and $2.70 per share of
Series B preferred  stock,  per annum,  payable on each of May 31, 1995, May 31,
1996 and May 31, 1997, if declared by the board of directors. Such dividends are
cumulative and if not declared and paid when due will accrue,  accumulate and be
included in the  liquidation  preference  of the Series A and Series B preferred
stock.  Upon  conversion  of the Series A or the Series B  preferred  stock into
common stock,  all accrued and unpaid  dividends  (whether or not declared) were
canceled. No dividends have been declared through December 31, 1995.

     The holders of Series A and Series B preferred  stock received common stock
in January  1996 with an  aggregate  fair value (at the $5.00 per share value of
the IPO) which  exceeded by $5,431,871  the cost of their initial  investment of
Series A and Series B  preferred  stock.  This  amount has been deemed to be the
equivalent  of a  preferred  stock  dividend.  The Company  recorded  the deemed
dividend  at the time of the  conversion  by  offsetting  charges and credits to
additional  paid in capital,  without any effect on total  stockholders'  equity
(net  capital  deficiency).  There was no effect on net loss from the  mandatory
conversion.  However,  the amount did  increase  the loss  applicable  to common
stock, in the calculation of net loss per share in the 1996 period.


   Initial Public Offering


     In January 1996,  the Company issued  3,200,000  units at $5.00 per unit in
its IPO.  Each unit  consisted of one share of common  stock and one  redeemable
Class A warrant.  The net proceeds (after  underwriter's  discount and expenses,
and other costs associated with the IPO) totaled $13,690,357.  At the closing of
the offering,  all of the Company's  outstanding  preferred stock  automatically
converted into common stock. Each share of Series A and Series B preferred stock
was  converted  into  1.4310444107  and  1.8993878755  shares of  common  stock,
respectively.

     In January 1996, the Company  repaid the  $3,750,000  principal and accrued
interest  of  $105,083  related  to a bridge  financing  with a  portion  of the
proceeds of the IPO. The Company also repaid $1,500,000 of principal and accrued
interest of $87,898 of notes issued by Ingenex in a bridge financing.

                                      F-16
<PAGE>



                           Titan Pharmaceuticals, Inc.
                          (a development stage company)
                   Notes to Consolidated Financial Statements
                 (Information at September 30, 1996 and for the
            nine-month period ended September 30, 1996 is unaudited)


7.  Stockholders' Equity (continued)

     In February 1996, the Company issued an additional  480,000 units, at $5.00
per share, in accordance with the underwriter's  over-allotment  option. The net
proceeds of the underwriter's over-allotment option totaled $2,160,000.


   Private Placement

     On July 31,  1996 and  August 2,  1996,  the  Company  completed  a private
placement of 1,536,000 units,  each unit consisting of one share of common stock
and one redeemable  Class A warrant,  for total gross  proceeds of  $16,000,000.
After  deducting  placement  agent  fees  and  other  expenses  of  the  private
placement,  the net  proceeds  to the Company  were  $13,794,608.  Each  warrant
entitles  the  registered  holder to purchase one share of common stock at $6.20
throught  January 18,  2001.  The  exercise  price of the warrants is subject to
adjustment.  Commencing January 18, 1997, the warrants are subject to redemption
by the  Company at $.05 per  warrant  on 30 days'  prior  written  notice if the
closing bid price of the common stock  averages in excess of an amount per share
to be determined for 30  consecutive  business days ending within 15 days of the
date of notice of redemption.  As of November 25, 1996, 54,100 warrants had been
exercised.  Upon  completion of the private  placement,  the warrants  issued in
connection  with the IPO and the  bridge  financing  have  been  adjusted  to an
exercise price of $6.20.


   Unit Purchase Options


     In connection with the initial public  offering and the private  placement,
the Company  granted to the managers of such offerings unit purchase  options to
purchase up to 320,000 and 307,200 Units at exercise  prices of $6.50 and $10.42
per Unit, respectively.


   Warrants

     In November 1993, in connection with the Series A preferred stock offering,
the Company issued warrants to the placement agent to purchase 327,813 shares of
Series A  preferred  stock at $6.44 per  share.  The  warrants  are  immediately
exercisable  and  expire  in  November  1998.  Upon the  close of the IPO  these
warrants  became  exercisable  for 469,115  shares of common stock at a price of
$4.50 per share.

     In connection with the Series B preferred stock private  placement in 1995,
the Company issued  warrants to the placement agent to purchase 24,402 shares of
Series B preferred  stock at an exercise price of $7.44 per share.  The warrants
expire in 2005 or five years from the IPO, whichever is earlier.  Upon the close
of the IPO, these warrants became  exercisable for 46,350 shares of common stock
at a price of $ 3.92 per share.


     The warrants  issued in the IPO entitle the holder to purchase one share of
common stock at an exercise  price of $6.20,  subject to  adjustment  in certain
circumstances,  at any time for a period of five years. Commencing one year from
the date of the IPO, the warrants are  redeemable  by the Company on thirty days
written  notice at a redemption  price of $0.05 per warrant if the closing price
of the Company's common stock for any thirty  consecutive  trading days averages
in excess of $9.10 per share.  The Company has reserved a  sufficient  number of
shares of the authorized  but unissued  shares of common stock for issuance upon
exercise of the warrants.




   Stock Option Plan

     Under the terms of the  Company's  amended and  restated  stock option plan
(the "1993 Plan"),  incentive  stock  options may be granted to  employees,  and
nonstatutory   stock  options  may  be  granted  to  employees,   directors  and
consultants of the Company and Operating Companies. A total of 558,073 shares of
common stock have been reserved and authorized for issuance under the 1993 Plan.

     Options granted under the 1993 Plan expire no later than ten years from the
date of grant, except when the grantee is a 10% shareholder of the Company or an
Operating Company, in which case the maximum term is five years from the date of
grant. The exercise price of incentive stock options, nonstatutory stock options
and  options  granted  to 10%  shareholders  of the  Company  (or the  Operating
Companies),  shall be at least  100%,  85% and 110%,  respectively,  of the fair
market value of the stock  subject to the option on the grant date.  The options
are  exercisable  immediately  upon grant,  however,  the shares  issuable  upon
exercise  of  the  options  are  subject  to 


                                      F-17
<PAGE>



                           Titan Pharmaceuticals, Inc.
                          (a development stage company)
                   Notes to Consolidated Financial Statements
                 (Information at September 30, 1996 and for the
            nine-month period ended September 30, 1996 is unaudited)


7.  Stockholders' Equity (continued)

repurchase by the Company. Such repurchase rights will lapse over a period of up
to five years from the date of grant.

      Activity under the option plan is summarized below:


                                          Shares         Options Outstanding
                                         Available     -------------------------
                                        For Grant of   Number of      Price Per
                                          Options       Shares         Share
                                          -------      ---------     ----------
Balance at December 31, 1993 .......      550,056         8,017         $0.29
  Options granted ..................     (330,136)      330,136      $0.59-$1.17
  Options canceled .................       48,960       (48,960)        $0.59
                                         --------      --------
Balance at December 31, 1994 .......      268,880       289,193      $0.29-$1.17
  Options granted ..................     (218,127)      218,127      $0.59-$1.35
  Options canceled .................      157,243      (157,243)     $0.29-$1.35
                                         --------      --------
Balance at December 31, 1995 .......      207,996       350,077      $0.29-$1.35
  Options exercised ................         --         (16,520)     $0.29-$1.35
  Options canceled .................       11,886       (11,886)     $0.59-$1.17
                                         --------      --------
Balance at September 30, 1996 ......      219,882       321,671      $0.59-$1.35
                                         ========      ========

     No options had been exercised as of December 31, 1995. All options  granted
are immediately exercisable, of which 265,842 and 197,106 shares of common stock
underlying  the  options  as of  December  31,  1995  and  September  30,  1996,
respectively,  would be subject to repurchase by the Company should such options
be exercised and the optionees' employment or consulting relationship terminate.
No further options will be granted under the 1993 Stock Option Plan.

     In November 1995, the Company adopted the 1995 Stock Option Plan (the "1995
Option  Plan").  A total of  1,300,000  shares of common  stock are reserved and
authorized for issuance under the 1995 Option Plan (see Note 11). The provisions
of the 1995 Option Plan provide for the automatic  grant of  nonqualified  stock
options to purchase  shares of common  stock to directors of the Company who are
not principal (10%)  stockholders of the Company  ("Eligible  Directors").  Each
Eligible Director of the Company was granted an option to purchase 10,000 shares
of common stock upon the  effective  date of the IPO. As of September  30, 1996,
1,075,638  options to  acquire  shares of common  stock  (with  exercise  prices
ranging  from  $5.00 -- $11.75)  have been  granted.  All  options  granted  are
immediately  exercisable,  of which 1,025,007  shares of common stock underlying
the  options as of  September  30,  1996 would be subject to  repurchase  by the
Company  should such  options be  exercised  and the  optionees'  employment  or
consulting relationship terminate.


     In addition, the Operating Companies,  with the exception of ProNeura, each
have a stock  option plan under which  options to purchase  common  stock of the
Operating Companies have been and may be granted.

   Shares Reserved for Future Issuance

     As of December 31, 1995, shares of common stock reserved by the Company for
future issuance (after giving effect to the IPO) consisted of the following:

Warrants issued in connection with related party debt ...........         33,682
Ingenex Technology Financing warrants ...........................        119,770
Bridge warrants .................................................      1,875,000
IPO warrants ....................................................      3,680,000
Placement agent warrants ........................................        515,465
Stock options ...................................................        650,077
                                                                       ---------
  Total .........................................................      6,873,994
                                                                       =========


                                      F-18
<PAGE>


                           Titan Pharmaceuticals, Inc.
                          (a development stage company)
                   Notes to Consolidated Financial Statements
                 (Information at September 30, 1996 and for the
            nine-month period ended September 30, 1996 is unaudited)


7.  Stockholders' Equity (continued)

   Ingenex Conversion and Purchase Rights

     In September 1994, Ingenex sold 283,400 shares of Series B preferred stock.
Pursuant to the Series B purchase  agreement,  in the event the Company has, and
Ingenex has not,  effected an IPO of the shares of its common stock within three
years from the date of the initial  Ingenex  Series B financing,  the holders of
the Series B shares will have the right (the "Put Right") to require the Company
to purchase,  in exchange for either cash or registered  shares of the Company's
common stock, at the Company's option,  the Series B shares from such holders at
the then fair  value of the  Series B shares.  In  November  1995,  the Series B
purchase  agreement was amended to provide that in the event the Company were to
complete  an IPO prior to May 31,  1996,  the  holders of the  Ingenex  Series B
preferred shares will waive the Put Right. As a result of the IPO, the Put Right
has terminated.

8.  Minority Interest

     The  $1,241,032   received  by  Ingenex  upon  the  issuance  of  Series  B
convertible  preferred  stock has been  classified  as minority  interest in the
consolidated balance sheet and has not been reduced by any portion of the losses
of Ingenex.

     Amounts  invested  by  outside   investors  in  the  common  stock  of  the
consolidated  subsidiaries  has been apportioned  between minority  interest and
additional paid-in capital in the consolidated balance sheets. Losses applicable
to the minority interest holdings of the Operating  Companies' common stock have
reduced that interest.

9.  Income Taxes

     The  Company  and  the  Operating  Companies  have  not  elected  to file a
consolidated federal tax return.

     As of December  31,  1995,  the Company  had  federal  net  operating  loss
carryforwards of approximately  $23,600,000,  of which approximately $21,800,000
is attributable to the Operating Companies  (excluding Ansan). The net operating
loss  carryforwards will expire at various dates beginning in 2008 through 2010,
if not utilized.

     Utilization  of the net  operating  losses may be subject to a  substantial
annual  limitation  due to the  ownership  change  limitations  provided  by the
Internal  Revenue  Code  of  1986.  The  annual  limitation  may  result  in the
expiration of net operating losses before utilization.

     As  of  December  31,  1995,   the  Company  had  deferred  tax  assets  of
approximately $10,400,000,  of which approximately $9,700,000 is attributable to
the Operating  Companies.  The net deferred tax asset has been fully offset by a
valuation  allowance.  The net valuation  allowance  increased by  approximately
$5,400,000 and $2,400,000 during 1994 and 1995, respectively.

     Significant  components  of the  Company's  deferred tax assets for federal
income taxes as of December 31, 1995 are as follows:

Deferred tax assets:

Net operating loss carryforwards ...........     $  6,500,000      $  8,700,000
Research credit carryforwards ..............          500,000           800,000
Capitalized research and development .......          900,000           600,000
Other-- net ................................          100,000           300,000
                                                 ------------      ------------
Deferred tax assets ........................        8,000,000        10,400,000
Valuation allowance ........................       (8,000,000)      (10,400,000)
                                                 ------------      ------------
  Net deferred tax assets ..................     $       --        $       --
                                                 ============      ============

                                      F-19
<PAGE>


                           Titan Pharmaceuticals, Inc.
                          (a development stage company)
                   Notes to Consolidated Financial Statements
                 (Information at September 30, 1996 and for the
            nine-month period ended September 30, 1996 is unaudited)



     The deferred tax assets  attributable  to Ansan as of December 31, 1994 and
1995 were $1,600,000 and zero, respectively.

10.  Related Party Transactions

     In November  1993,  in  connection  with the  Company's  private  placement
offering of Series A preferred stock, Paramount Capital, Inc.  ("Paramount"),  a
related party, acted as the agent to place the preferred stock. The Company made
a cash payment of $2,306,143 to Paramount out of the private placement  proceeds
as compensation and expense allowance  related to the offering.  This amount was
offset against the proceeds from the offering. Additionally,  Paramount received
warrants to purchase 327,813 shares of Series A preferred stock (see Note 7).

     In connection  with the Company's  private  placement  offering of Series B
preferred  stock in 1995,  Paramount  also  acted as the  placement  agent.  The
Company  made a  cash  payment  of  $148,500  to  Paramount  out of the  private
placement  proceeds  as  compensation  and  expense  allowance  related  to  the
offering.  This  amount was  offset  against  the  proceeds  from the  offering.
Additionally,  Paramount received warrants to purchase 24,402 shares of Series B
preferred stock (see Note 7).

11.  Subsequent Events (Unaudited)


     At September 30, 1996,  options to purchase  820,135 shares of common stock
(with exercise  prices ranging from  $10.75-$11.75)  under the 1995 Stock Option
Plan were  subject to  stockholder  approval of an  amendment to the 1995 Option
Plan to increase  the number of shares  authorized  for issuance  thereunder  to
1,300,000.  Such approval was made by the  shareholders at the annual meeting on
October 18,  1996.  Due to an increase in the stock price on October 18, 1996 to
$11.25 per share,  deferred  compensation of approximately  $335,000 relating to
670,135 shares was recorded in October 1996. The deferred  compensation  will be
amortized to expense over the four-year vesting period of the options.



                                      F-20
<PAGE>

================================================================================


     No  dealer,  salesman  or  other  person  has been  authorized  to give any
information or to make any  representations,  other than those contained in this
Prospectus,  and, if given or made, such information or representations must not
be relied upon as having been  authorized by the Company.  This  Prospectus does
not  constitute  an offer to sell,  or a  solicitation  of an offer to buy,  any
securities  offered hereby by anyone in any  jurisdiction in which such offer or
solicitation  is not  authorized  or in which the  person  making  such offer or
solicitation  is not  qualified  to do so or to anyone to whom it is unlawful to
make such offer,  or  solicitation.  Neither the delivery of this Prospectus nor
any sale made hereunder shall, under any  circumstances,  create any implication
that the  information  herein  contained is correct as of any time subsequent to
the date of this Prospectus.


                               -----------------

                                TABLE OF CONTENTS


                                                                            Page
                                                                            ----
Prospectus Summary........................................................    3
Risk Factors..............................................................    5
Use of Proceeds...........................................................   10
Dividend Policy...........................................................   10
Price Range of Common Stock...............................................   10
Capitalization............................................................   11
Selected Financial Data...................................................   12
Management's Discussion and                                               
  Analysis of Financial Condition and                                     
  Results of Operations...................................................   13
Business..................................................................   16
Management................................................................   30
Certain Transactions......................................................   37
Principal Stockholders....................................................   38
Selling Securityholders...................................................   39
Plan of Distribution......................................................   47
Description of Securities.................................................   47
Shares Eligible for Future Sale...........................................   50
Legal Matters.............................................................   51
Experts...................................................................   51
Additional Information....................................................   51
Index to Financial Statements.............................................  F-1

                                                           

================================================================================


================================================================================


                                     TITAN
                                PHARMACEUTICALS,
                                      INC.




                               -----------------

                                   PROSPECTUS

                               -----------------








   
                                December 2, 1996
    





================================================================================




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