THERAPEUTIC ANTIBODIES INC /DE
10-K/A, 1999-08-13
MEDICAL LABORATORIES
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<PAGE>   1
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                   FORM 10-K/A

                                 AMENDMENT NO. 2
(Mark One)

   [X]   Annual report pursuant to Section 13 or 15(d) of the Securities
         Exchange Act of 1934.

         For the fiscal year ended December 31, 1998 or

   [ ]   Transition report pursuant to Section 13 or 15(d) of the Securities
         Exchange Act of 1934

         For the transition period from ________ to ________

                          COMMISSION FILE NO.: 0-25978

                           THERAPEUTIC ANTIBODIES INC.
- --------------------------------------------------------------------------------
             (Exact Name of Registrant as Specified in Its Charter)

          DELAWARE                                     62-1212485
- ----------------------------------        ------------------------------------
(State or Other Jurisdiction of           (I.R.S. Employer Identification No.)
Incorporation or Organization)

1207 17th Avenue South, Suite 103
    Nashville, Tennessee                                   37212
- --------------------------------------                  ----------
Address of Principal Executive Offices)                 (Zip Code)

       Registrant's telephone number, including area code: (615) 327-1027

           Securities registered pursuant to Section 12(b) of the Act:

                                                     Name of Each Exchange
   Title of Each Class                                on Which Registered
- -----------------------------------         -----------------------------------
        NONE                                               NONE

           Securities registered pursuant to Section 12(g) of the Act:


                     COMMON STOCK, PAR VALUE $.001 PER SHARE
                     ---------------------------------------
                                (Title of Class)

                  Indicate by check mark whether the registrant: (1) has filed
all reports required to be filed by Section 13 or 15(d) of the Securities
Exchange Act of 1934 during the preceding 12 months (or for such shorter period
that the registrant was required to file such reports), and (2) has been subject
to such filing requirements for the past 90 days.

                  YES     [X]                NO  [ ]

                  Indicate by check mark if disclosure of delinquent filers
pursuant to Item 405 of Regulation S-K is not contained herein, and will not be
contained, to the best of the registrant's knowledge, in definitive proxy or
information statements incorporated by reference in Part III of this Form 10-K
or any amendment to this Form 10-K.   [ ]

                  The aggregate market value of the shares of Common Stock of
the registrant held by non-affiliates on March 26, 1999 ($.91 per share) was
$42,581,409. As of March 26, 1999, the registrant had outstanding 52,057,219
shares of Common Stock.



<PAGE>   2


                              List of Items Amended

                                     PART II


<TABLE>
<CAPTION>
Item                                                                                                          Page
- ----                                                                                                          ----
<S>                                                                                                           <C>
6.       Selected Financial Data                                                                                2
7.       Management's Discussion and Analysis of Financial Condition and Results of Operations                  4
7A.      Quantitative and Qualitative Disclosure About Market Risk                                             17
8.       Financial Statements                                                                                  18

                                   PART IV

14.      Exhibits, Financial Statement Schedules, and Reports on Form 8-K                                      46
</TABLE>


                               Text of Amendments

Explanatory Note:

         Each of the above listed Items is hereby amended by deleting the Item
in its entirety and replacing it with the Items included herein.

         The purpose of the amendment is to make certain changes to the Selected
Financial Data (Item 6), the Management's Discussion and Analysis of Financial
Condition and Results of Operations (Item 7), the Quantitative and Qualitative
Disclosures About Market Risk (Item 7A), and the Financial Statements (Item 8)
in Part II of the Annual Report on Form 10-K for the year ended December 31,
1998 of Therapeutic Antibodies Inc. (the "company") that was filed on March 31,
1999 (the "Original Filing"). A restated financial data schedule, solely for
the use of the Securities and Exchange Commission ("SEC"), is also filed with
this amendment.

         The amendment is being made to reflect certain comments received by the
company from the SEC. The SEC requested that the company amend the Original
Filing to, among other things, (i) separately quantify and discuss product
revenues and contract revenues for all periods; (ii) provide descriptions, in
the footnotes to the financial statements and in Management's Discussion and
Analysis, of the impact of Financial Accounting Standards Board Statements of
Position Nos. 98-1 and 98-5 on the company's accounting methods; (iii) revise
the company's discussion of its exposure to fluctuations in interest rates and
foreign currency rates; (iv) revise its Statements of Operations to separately
present non-operating revenues and expenses below operating revenues and
expenses; and (v) to add certain disclosures in the footnotes to the company's
financial statements.

         Any items in the Original Filing not expressly changed hereby shall be
as set forth in the Original Filing. All information contained in this amendment
and the Original Filing is subject to updating and supplementing as provided in
the company's periodic reports filed with the SEC subsequent to the date of such
reports.



                                       1
<PAGE>   3


                                     PART II

ITEM 6.  SELECTED FINANCIAL DATA

                  The following table sets forth selected consolidated financial
data as and for each of the five fiscal years in the period ended December 31,
1998 and the cumulative development stage from the Company's inception on August
10, 1984 through December 31, 1998. The selected financial data for the Company
has been derived from the audited consolidated financial statements of the
Company. The selected consolidated financial data is qualified by, and should be
read in conjunction with, the Consolidated Financial Statements and Notes
thereto included elsewhere herein and also with "Management's Discussion and
Analysis of Financial Condition and Results of Operations."

<TABLE>
<CAPTION>
                                                                                                                        8/10/84
                                                                 Years Ended December 31,                             (Inception)
                                        --------------------------------------------------------------------------      through
                                             1998          1997            1996           1995           1994          12/31/98
                                             ----          ----            ----           ----           ----        -------------
<S>                                     <C>            <C>             <C>             <C>            <C>            <C>
Statement Of Operations Data:

Operating revenues (1) ..............   $  3,392,447   $  1,791,420    $    927,532    $    650,519   $  1,092,122   $   9,070,522

Operating expenses:

     Research and development .......     11,363,218     11,462,352       9,185,126       6,321,674      5,107,894      53,405,675

     General and administrative,
     marketing and distribution .....      4,598,073      4,176,139       3,083,151       2,247,472      1,619,824      19,517,793

     Depreciation and amortization ..      1,561,951      1,643,922       1,387,916         856,756        864,288       7,073,621

     Other (2) ......................        451,243        328,158         355,360          36,368        119,052       1,331,226
                                        ------------   ------------    ------------    ------------   ------------   -------------

       Total operating expenses .....     17,974,485     17,610,571      14,011,553       9,462,270      7,711,058      81,328,315

     Operating loss .................   $(14,582,038)   (15,819,151)    (13,084,021)     (8,811,751)    (6,618,936)    (72,257,793)
                                        ============   ============    ============    ============   ============   =============

     Net loss .......................   $(15,888,928)  $(16,847,718)   $(12,746,117)   $ (9,100,038     (6,717,753)  $(75,301,311)
                                        ============   ============    ============    ============   ============   ============

     Preferred stock dividends (5) ..        (32,877)            --              --              --             --         (32,877)
                                        ============   ============    ============    ============   ============   =============

     Net loss applicable to common
      shareholders ..................    (15,921,805)   (16,847,718)    (12,746,117)     (9,100,038)    (6,717,753)    (75,334,188)
                                        ============   ============    ============    ============   ============   =============


     Basic and diluted net loss per
      share .........................   $      (0.59)  $      (0.74)   $      (0.68)   $      (0.57)  $      (0.47)
                                        ============   ============    ============    ============   ============

Balance Sheet Data:

     Cash and cash equivalents ......   $  7,760,328   $  4,915,077    $ 20,502,536    $  3,397,082   $    593,154
       (1)(4)(5)(6)

     Total assets (3)(4)(5)(6) ......     21,421,502     20,800,065      37,179,990      15,157,099     12,103,994

     Long term debt, net of current
       portion (3)(6) ................     4,744,216      6,059,072       8,592,755       9,595,420      2,917,251

     Deficit accumulated during
       development stage .............   (75,301,311)   (59,412,383)    (42,564,665)    (29,818,548)   (20,718,510)

     Stockholders' equity (4)(5)(6) ..    12,022,434      9,758,345      25,215,530         894,479      4,862,404
</TABLE>


- --------------------
(1)      At December 31, 1998, the Company held approximately U.S. $7,508,000
         denominated in British pounds and U.S. $31,500 in Australian dollars.
         The decline in the exchange rate at year end between the British pound
         and Australian dollar versus the U.S. dollar resulted in a foreign
         currency transaction loss of U.S. $240,703. At December 31, 1997, the
         Company held approximately U.S. $2,960,000 which was denominated in
         British pounds. As a result of improvement in the exchange rate between
         the British pound and the U.S. dollar, the Company experienced a
         foreign currency transaction loss of U.S. $913,119 for the year ended
         December 31, 1997.


                                       2

<PAGE>   4

(2)      Includes cost of goods sold and other expense items.

(3)      In 1995 and 1994, the Company constructed a pilot production facility
         in London and a manufacturing facility in Wales. These facilities were
         funded through financing arrangements provided by Aberlyn Capital
         Management Company, Inc. and the Welsh Development Agency. See Note 5
         to the consolidated financial statements.

(4)      On July 23, 1996, the Company completed an initial public offering of
         4,190,477 shares of its common stock on the London Stock Exchange at
         (pound)5.25 ($8.14 based on the noon buying rate on July 23, 1996) per
         share. See Note 1 to the consolidated financial statements.

(5)      100 shares of Therapeutic Antibodies Series A Convertible Redeemable
         Preferred Stock, issued on September 28, 1998, together with dividends
         accrued therein, were converted into 2,995,692 shares of Therapeutic
         Antibodies common stock on November 9, 1998.

(6)      On October 26, 1998, Therapeutic Antibodies announced a placement of
         21,300,000 shares of its common stock of (pound)0.40 ($0.68 based on
         the noon buying rate on October 26, 1998) per share. At the same time
         it entered into agreements to convert $2.9 million of outstanding debt
         into 4,394,869 shares of common stock. A portion of the proceeds of the
         placement were used to repay further outstanding debt.


                                       3
<PAGE>   5


ITEM 7.  MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND
         RESULTS OF OPERATION

         The following discussion and analysis of the financial condition and
results of operations of the Company should be read in conjunction with the
financial statements and notes thereto.

GENERAL

         Since its inception, the Company has been in the development stage,
devoting its efforts and resources to drug discovery and development programs
relating to the development of highly purified, polyclonal antibodies for the
treatment of disease. The Company's revenues have been primarily derived from
licensing agreements with corporate partners, contract agreements, product
sales, grant income, and interest income. The Company has incurred net losses
each year since its inception and the Company expects to continue to incur
operating losses during at least the next year due to continued spending on
research, product development and the requirements for process development,
preclinical and clinical testing, regulatory affairs, initial manufacturing
activities and administration. To fund these activities, the Company will
continue to evaluate opportunities to raise further funding which will be
required to carry out the current business plan.

         The Company conducts its operations from its headquarters in the United
States and through subsidiaries located in the United Kingdom and Australia. For
a discussion of the Company's international operations for the past three fiscal
years, see Note 11 to the Company's financial statements.

RESULTS OF OPERATIONS

         YEAR ENDED DECEMBER 31, 1998 COMPARED TO YEAR ENDED DECEMBER 31, 1997

         The Company's operating revenues for 1998 increased by 89% to
$3,392,000 from $1,791,000 for 1997. Licensing revenue increased 129% to
$2,544,000 for the year ended December 31, 1998 from $1,113,000 for the year
ended December 31, 1997. This increase is primarily attributable to milestone
payments received from licensing agreements with pharmaceutical partners.
Included in the 1998 milestone payments is $1,500,000 which was received under
the Altana agreement. An additional $1,000,000 was received when the Company
entered into an agreement with G.D. Searle & Co., as discussed under "Liquidity
and Capital Resources" below. The 1997 licensing revenues consists primarily of
$1,000,000 in milestone payments from Altana. A 79% increase in sales revenue to
$530,000 during the year ended December 31, 1998 from $295,000 during the year
ended December 31, 1997 was due primarily to the recognition in 1998 of a
$219,000 sale of Therapeutic Antibodies' Nigerian EchiTAb(TM) product. Contract
revenue in 1998 increased 102% to $197,000 from $98,000 as a result of an
increase in the number of sheep managed by the Company under contractual
arrangements with third parties in the United Kingdom. Grant revenue decreased
80% in 1998. The Company received a $129,000 grant from the Welsh Government in
1997 for expansion of the Company's Welsh operations.

         The Company's total operating expenses for the year ended December 31,
1998 were slightly more than 1997 expenses. Research and development expenses
for 1998 decreased to $11,363,000 from $11,462,000 in 1997 due to cost reduction
measures initiated by the Company in 1998. Research and development expenses had
increased between 18% and 50% per year for the previous five years ending in
1997. In early 1998, management implemented a plan to conserve cash and to
sharpen the focus of the Company's research and development efforts. As part of
this streamlining, some of the Company's basic research activities and certain
clinical trial programs, including research into the application of CytoTAb(TM)
to treat the symptoms of sepsis syndrome, have ceased. The Company is



                                       4
<PAGE>   6

currently pursuing other applications for CytoTAb(TM). The Company began to
realize the results of these cost reduction measures during late 1998.

         General and administrative expenses for the year ended December 31,
1998 increased by 14% to $4,051,000 from $3,562,000 for the year ended December
31, 1997. This increase is due to one-time costs of approximately $162,000
incurred for management changes, $35,000 for the development of an information
systems department, and fees of $283,000 incurred for restructuring the
Company's United Kingdom subsidiary entities.

         Marketing and distribution expenses decreased for the year ended
December 31, 1998 by 11% to $547,000 from $615,000 for the year ended December
31, 1997 primarily as a result of a vacancy in the Director of Business
Development position from April until December 1998. Marketing and distribution
expenses exceeded sales and contract revenues for the years ended December 31,
1998 and December 31, 1997 primarily due to the fact that many of the Company's
products were still in the development stage and not yet providing revenue.

         Depreciation and amortization expenses for the year ended December 31,
1998 decreased by 5% to $1,562,000 from $1,644,000 for the year ended December
31, 1997. The Company had significant capital expenditures in 1994 through 1996
for the establishment of the Welsh and Australian production facilities.
Expenditures for production facilities incurred in 1997 and 1998 resulted in a
leveling off and slight reduction in depreciation expense in 1998. In addition,
the majority of 1998 expenditures occurred later in the year resulting in less
depreciation during the year.

         Interest income for the year ended December 31, 1998, decreased 73% to
$239,000 from $887,000 for 1997 due to lower cash and short-term investment
holdings during 1998.

         Interest expense for the year ended December 31, 1998 increased by 30%
to $1,306,000 from $1,002,000 for the year ended December 31, 1997. During 1998,
the Company incurred an additional $516,000 in interest and warrant expense
related to the Company's private placement of $4,025,000 principal amount of
short-term bridge notes between June and September 1998.

         Changes in foreign currency exchange rates resulted in the recording of
less foreign currency loss in 1998 than in 1997. Gains and losses are the result
of fluctuations in the exchange rates of the currencies in which the Company
conducts its business compared to the United States dollar.

         The Company's net loss for the year ended December 31, 1998, was
$15,889,000 compared to a net loss of $16,848,000 for the year ended December
31, 1997. The Company's net loss applicable to common shareholders for the year
ended December 31, 1998 was $15,922,000 compared to a net loss applicable to
common shareholders of $16,848,000 for the year ended December 31, 1997.

         YEAR ENDED DECEMBER 31, 1997 COMPARED TO YEAR ENDED DECEMBER 31, 1996

         The Company's operating revenues for 1997 increased by 93% to
$1,791,000 from $928,000 for 1996. Licensing revenue increased 676% to
$1,113,000 for the year ended December 31, 1997 from $144,000 for the year ended
December 31, 1996 primarily due to the receipt of $1,000,000 in milestone
payments from Altana in the fourth quarter of 1997. Sales revenue for 1997
remained fairly consistent increasing 2% over the 1996 total. Contract revenue
decreased during the year ended December 31, 1997 primarily because 1996
included a one time payment of $173,000 attributable to Therapeutic Antibodies'
Nigerian EchiTAb(TM) contract. In 1997, grant revenue increased $87,000 due to a
grant received from the Welsh Government for expansion of the Company's Welsh
operations.



                                       5
<PAGE>   7

         Total operating expenses for the year ended December 31, 1997 increased
by 26% to $17,611,000 from $14,012,000 for the same period in 1996. Research and
development expenses during the same periods increased by 25% to $11,462,000
from $9,185,000 as a result of the following: advanced clinical trial activities
for DigiTAb(R) and CytoTAb(TM); continued preparation for the regulatory review
process for CroTAb(R); manufacturing the Company's products for clinical trials;
and conducting and establishing the necessary quality control and assurance
systems. Additionally, the expansion of the Australian facility was completed in
early 1997 and the Company began devoting resources to that facility to meet the
need for increased serum requirements for commercial production.

         General and administrative expenses for the year ended December 31,
1997 increased by 31% to $3,562,000 from $2,722,000 for the year ended December
31, 1996. This increase relates primarily to increased insurance requirements,
stockholder relations and other activities required following the Company's
initial public offering in the United Kingdom in 1996.

         Marketing and distribution expenses increased for the year ended
December 31, 1997 by 70% to $615,000 from $361,000 in the year ended December
31, 1996. This increase reflects additional staffing and associated expenses.
Marketing and distribution expenses exceeded sales and contract revenues for the
years ended December 31, 1997 and December 31, 1996 primarily due to the fact
that many of the Company's products were still in the development stage and not
yet providing revenue.

         Depreciation and amortization expenses for the year ended December 31,
1997 increased by 18% to $1,644,000 from $1,388,000 for the year ended December
31, 1996. This increase is the result of the depreciation of the capital
expenditure for the Australian production facility, which was placed in service
in February 1997.

         Interest income in the year ended December 31, 1997, increased 46% to
$887,000 from $607,000 due to additional cash and short-term investment holdings
from the proceeds of the Company's initial public offering in the United Kingdom
in July 1996.

         Interest expenses for the year ended December 31, 1997 decreased by 17%
to $1,002,000 from $1,201,000 in the year ended December 31, 1996. This decrease
is a result of The Company's repayment in 1996 of approximately $4,750,000 in
debt obligations.

         During the year ended December 31, 1996, the Company recorded a foreign
currency transaction gain of $1,733,000 as a result of the United States
dollar's improvement during 1996 against the British pound sterling compared to
a loss of $913,000 for the year ended December 31, 1997.

         The Company's net loss for the year ended December 31, 1997, was
$16,848,000 compared to a net loss of $12,746,000 for the year ended December
31, 1996. In addition to the factors described above, changes in foreign
currency exchange rates used to translate the foreign subsidiaries financial
statements into United States dollars resulted in higher expense levels.

LIQUIDITY AND CAPITAL RESOURCES

         Since its inception, the Company has been in the development stage,
devoting its efforts and resources to drug discovery and development programs.
Capital resources have been used for the establishment and expansion of
production facilities, for product research and development activities, for
clinical testing and to meet the Company's overall increased working capital
requirements. Management does not expect revenues from product sales to be a
significant source of funding until additional products receive regulatory
approval. Although the Company anticipates the



                                       6
<PAGE>   8

launch of CroTAb(R) following FDA approval in 1999, revenues from sales of
CroTAb(R) are not expected to be significant in 1999. Future capital
requirements will depend on numerous factors including the progress of the
Company's research programs and clinical trials, the development of regulatory
submissions, the receipt of FDA approval of CroTAb(R), the commercial viability
of the Company's products, the ability to attract collaborative partners with
sales, distribution and marketing capabilities, and the terms of any new
licensing arrangements.

         Funds for the Company's operating and capital requirements historically
have been provided by the sale of equity and debt and from collaboration
agreements and other financing arrangements. In November 1998, the Company
completed the private placement (described below) of 28,690,561 shares of common
stock in the United States and in the United Kingdom, raising net cash proceeds
of $12,600,000. At the time of the private placement, the Company estimated that
the fundraising, together with licensing and contract revenue, would provide
sufficient funds to allow the Company to reach the launch of several of its
products, and accordingly bring the Company to the point at which its revenues
can sustain ongoing product development. With the loss of the 1999 milestone
payments and product revenues that would have been received under the Searle
agreement (described below), the Company will need to raise additional financing
by mid-1999 to fund operations. The Company is currently pursuing several
financing alternatives, including preliminary discussions that may lead to a
merger on a share exchange basis. The Board has also entered into discussions
with third parties relating to the sale of additional debt or equity securities,
the disposal of certain non-core investments, additional product licensing
arrangements, and possible combinations or collaborations with strategic
partners. While the Directors believe that they will be able to successfully
implement one or more of these financing strategies, there can be no assurance
that they will be able to do so or to otherwise obtain financing on terms
acceptable to the Company. In the meantime, the Company continues to take
measures, implemented in 1998, to conserve cash resources, while sustaining the
progress of clinical trials for products that promise the most success. See
"Item 1. Business -- Overview and Recent Developments."

         At December 31, 1998, the Company had cash and cash equivalents
totaling $7,760,000, of which approximately $7,508,000 was denominated in
British pounds. The Company's net cash used in operating activities during the
year ended December 31, 1998 totaled $13,283,000, a decrease of 1% from the year
ended December 31, 1997. Trade receivables decreased $527,000 from December 31,
1997 to December 31, 1998 even though operating revenues increased by $1,601,000
during 1998 compared to 1997. This is because the Company recorded as trade
receivables a $500,000 milestone payment from Altana in December 1997, although
the Company received payment on the receivable in January 1998. Capital
expenditures increased 10% to $1,385,000 in 1998 from $1,257,000 in 1997.
Capital expenditures included replacement of certain essential equipment,
computer hardware and software upgrades to meet Year 2000 needs (see below), and
facility improvements prior to the early 1999 inspection of the Welsh facility
by the FDA. Capital expenditures of $1,900,000 are budgeted for 1999. These
expenditures are for process improvement and scale-up of the Company's
facilities for commercial production and will be contingent upon availability of
funding. The Company uses sheep for the production of its polyclonal antibodies
and supplies all the antisera required from its own flocks. The Company's
subsidiaries currently have approximately 6,200 sheep. The Company will keep the
number of sheep constant through much of 1999 and add sheep in late 1999 in
anticipation of increased TriTAb(R) production requirements.

         The Company has agreed to repay the outstanding balance of an $800,000
term loan, plus accrued interest, to Equitas, L.P. on or before March 31, 1999.
The loan currently bears interest at an annual rate of 11.5%.

         During 1998, the Company received milestone payments of $1,500,000
under the Altana Agreement as a result of the FDA's acceptance of the Company's
PLA and ELA for CroTAb(R). The Company is entitled to receive additional
payments under the agreement based on achievement of certain milestones relating
to CroTAb(R) and the Company's DigiTAb(R) and TriTAb(R) products. The



                                       7
<PAGE>   9

Company anticipates receiving additional payments under the agreement of
$2,000,000 in 1999 based on FDA approval of CroTAb(R) and progression of the
DigiTAb(R) and TriTAb(R) regulatory filings with the FDA.

         In May 1998, the Company entered into an agreement with G. D. Searle &
Co. ("Searle") for the identification, development and commercialization of a
new antibody based drug designed to titrate the effects of Searle's new
xemilofiban and orbofiban anticoagulant products. Searle anticipated that it
would pay the Company up to $8,000,000 over the term of the agreement for
research and development and product supplies based on achieving certain
milestones. The Company received its first milestone payment of $1,000,000 upon
execution of the agreement in May 1998. In January 1999, however, Searle made
the decision to cease development of its xemilofiban and orbofiban projects and
exercised its right to terminate its agreement with the Company.

         Between June and September 1998, the Company raised $4,025,000 in a
private placement of 15% Subordinated Promissory Notes (the "1998 Notes"). The
1998 Notes matured in the fourth quarter of 1998 and interest was payable
quarterly. The Company issued warrants to purchase 25,000 shares of its common
stock to each purchaser of $250,000 principal amount of 1998 Notes. As part of
the Company's November 1998 Placing (described below), the holders of $2,375,000
aggregate principal amount of the 1998 Notes converted principal plus accrued
interest of $107,000 into a total of 3,658,058 shares of the Company's common
stock. A portion of the proceeds of the Company's 1998 Placing was used to repay
$1,650,000 of the outstanding principal balance and $80,000 of accrued interest
on the 1998 Notes in November 1998.

         In September 1998, the Company issued 100 shares of Series A
Convertible Redeemable Preferred Stock (the "Series A Preferred Stock") to an
institutional investor and received total proceeds of $2,000,000. In November
1998, as a part of the 1998 Placing, the investor exercised its right to convert
all outstanding shares of the Series A Preferred Stock and $33,000 of accrued
dividends into 2,995,692 shares of the Company's common stock.

         On November 9, 1998, the Company completed a $19,500,000 capital
refinancing involving the issuance of 28,690,561 new shares of the Company's
common stock on the London Stock Exchange at $.68 per share. The refinancing
included the private placement of 21,300,000 shares of common stock for cash and
the conversion of all outstanding shares of Series A Preferred Stock and
$2,900,000 principal and interest amount of the 1998 Notes and certain other
loan notes into a total of 7,390,561 shares of the Company's common stock.
Included in the loans converted was $500,000 principal amount of an outstanding
$750,000 loan from an officer of the Company which was converted into 736,811
shares of common stock. Of the approximately $12,600,000 in cash raised in the
private placement, net of expenses, $1,730,000 was used to repay the outstanding
balance of principal and interest on the 1998 Notes. The remaining proceeds were
and continue to be used to fund the ongoing development of the Company's
products.

         In April 1998, the Company received a loan of $162,000 from the
Department of Primary Industries and Resources of the South Australian
Government to be used for the construction of transportable buildings at the
Company's Australian facility. The interest rate on the loan is currently 6.5%
annually and is variable at the discretion of the Minister for Primary
Industries. Principal on the loan is payable in 20 equal semi-annual
installments, together with interest accrued thereon, beginning October 1998
through April 2008.

         In June 1998, the Company received the final installment on a loan from
the Department of Industry and Trade ("DIT") of the South Australian Government.
In April 1996, the DIT agreed to loan the Company up to $62,000 based upon the
number of local citizens employed by the Company through April 1998. At December
31, 1998, the Company had received a total of $50,000. This loan is provided
interest-free and is due in full on April 29, 2006.



                                       8
<PAGE>   10

YEAR 2000 READINESS

         GENERAL

         The following material is designated a Year 2000 readiness disclosure
for purposes of the Year 2000 Information Readiness and Disclosure Act. The
Company utilizes management information systems and software technology that may
be affected by Year 2000 issues. During 1998, the Company implemented a plan
called the Y2K project to ensure that its systems would be Year 2000 compliant.
The Y2K project is addressing the issue of programmable logic controllers and
computer programs being able to distinguish between dates in the 20th century
and dates in the 21st century. The Y2K project is expected to make all of the
Company's business systems Year 2000 compliant.

         Y2K PROJECT

         The Company's Y2K project is divided into five phases. The project
         phases are as follows:

         -        Phase 1: compile an inventory of all equipment;

         -        Phase 2: assign priorities to the equipment identified as
                  being at risk for Year 2000 issues;

         -        Phase 3: assess the Year 2000 compliance of items identified
                  as being significant to the operational activities of the
                  Company;

         -        Phase 4: repair or replace material items that are determined
                  not to be Year 2000 compliant; and

         -        Phase 5: test and validate material items. A task force has
                  been established to carry out these tasks which includes
                  subgroups at each of the Company's four locations, Nashville,
                  USA; Adelaide, Australia; London, UK; and Llandysul, UK.

         During 1998, the Company completed the inventory and priority
assignment phases (phases 1 and 2) for each location.

         The assessment of Year 2000 compliance (phase 3) includes the
identification and prioritization of critical external suppliers. The Company is
currently communicating with its critical suppliers to evaluate their progress
and preparation for Year 2000 compliance. Based on the results of these
evaluations the Company will develop contingency plans in the second quarter of
1999. The Company plans to complete Phase 3 by mid-1999.

         Phase 4, the repair and replacement of equipment and application
software that is not Year 2000 compliant, includes conversion, where available
from the supplier, or replacement. Finally, Phase 5, the testing phase, will be
undertaken as the hardware and software is converted or replaced.

         During 1998, the Y2K task force had identified the accounting software
used in Australia as not being Year 2000 compliant. During the first quarter of
1999 the software vendor has released an upgrade solution that is Year 2000
compliant which the Company is planning to implement during the third quarter of
1999. In addition, the Company has identified a possible risk to Year 2000
compliance posed by some of the programmable logic controllers or embedded
systems controlling the site utilities at each of its production sites in Wales
and Australia. The Company is currently researching the extent of this risk and
the optimal solution by obtaining confirmation from suppliers that there is no
hidden coding in the embedded systems and also by looking at the source code to



                                       9
<PAGE>   11

determine where dates are used and the impact those have on the operation of the
system. Changes in equipment will be made during the Company's September
shut-down.

         All phases of the Y2K project are expected to be complete before the
end of 1999. The phases are concurrent rather than consecutive; therefore, more
than one phase may be in progress at the same time.

         COSTS

         The total estimated cost associated with the Y2K project is not
expected to be material to the Company's financial position. The total capital
cost is estimated to be no more than $150,000. This figure will depend on the
cost of any replacements needed after completion of the assessment phase of the
Y2K project. The total operating cost attributable to staff time and effort
devoted to the Y2K project to date is $45,000. The estimated future operating
cost of completing the project is $60,000.

         RISKS

         The failure to correct any Year 2000 problem could result in an
interruption in, or a failure of normal business activities or operations. Due
to the inherent uncertainty when dealing with Year 2000 issues, and from the
uncertainty of the Year 2000 readiness of suppliers and other third parties, the
Company is unable to determine whether or not any Year 2000 failures will have a
material effect on the Company, its operations or its financial condition. The
Y2K project is expected to significantly reduce the level of uncertainty about
any Year 2000 problems posed to the Company, either internally, or by the
compliance of its third party suppliers. The Company believes that with the
implementation and completion of its Y2K project the possibility of significant
interruptions of normal operations should be minimal. Despite the efforts of the
Company to address year 2000 issues, the Company can provide no assurance that
the year 2000 issues will not have an adverse effect upon the Company's
operations or financial condition. Further, although the Company has received
assurances of year 2000 compliance from third parties with which the Company has
significant relationships, the Company cannot guarantee that these parties will
be year 2000 compliant.

NET OPERATING LOSS CARRYFORWARDS

         As of December 31, 1998, the Company had approximately $70.5 million of
net operating loss carryforwards for income tax purposes, of which $57.7 million
are available to offset United States federal income taxes and expire from 1999
through 2018. In addition, the Company has approximately $307,000 of research
and development tax credits available to offset future federal income tax,
subject to limitations for alternative minimum tax. The Internal Revenue Code of
1986, as amended, contains certain limits on net operating loss carryforwards
available to be used in any given year if certain events occur, including
significant changes in ownership. At present the Company's net operating loss
carryforwards are subject to these limitations. No assets have been recognized
in the Company's financial statements for these net operating loss carryforwards
because management believes the criteria for recognition under generally
accepted accounting principles have not been met.

RECENTLY ISSUED ACCOUNTING PRONOUNCEMENTS

         During 1998, the Financial Accounting Standards Board issued Statement
of Position No. 98-1 "Accounting for the Costs of Computer Software Developed or
Obtained for Internal Use" and Statement of Position No. 98-5 "Reporting on the
Costs of Start-Up Activities." The Company will adopt Statement of Position No.
98-1 and Statement of Position No. 98-5 in 1999 as required.



                                       10
<PAGE>   12

         The Company primarily purchases all computer software from third party
vendors and does not engage in the development of internal use software. The
Company capitalizes all costs to acquire computer software from third party
vendors. Consequently, the implementation of Statement of Position No. 98-1 is
not expected to have a material impact on the Company.

         The Company expenses all start-up related costs and accordingly, the
implementation of Statement of Position No. 98-5 will not have a significant
impact on the Company.

         In June 1998, the Financial Accounting Standards Board issued SFAS No.
133, "Accounting for Derivative Instruments and Hedging Activities" ("SFAS No.
133"). In general, SFAS No. 133 requires that all derivatives be recognized as
either assets or liabilities in the balance sheet at their fair value, and sets
forth the manner in which gains or losses thereon are to be recorded. The
treatment of such gains and losses is dependent upon the type of exposure, if
any, for which the derivative is designated as a hedge. This statement is
effective for periods beginning after June 15, 1999. Management is currently
assessing the impact of adopting SFAS No. 133, but does not anticipate a
significant impact on the Company's financial position or results of operations.

BUSINESS RISKS

         We have made forward-looking statements in this report that are based
on the beliefs of management as well as assumptions made by and information
currently available to us. These statements include the completion of certain
clinical trials involving our products, the receipt of regulatory approvals, the
adequacy of our capital resources, trends relating to the biopharmaceutical
industry and others. When used in this document, the words "anticipate,"
"believe," "estimate," "expect," "plan," and "intend" and similar expressions,
as they relate to us or our management, are intended to identify forward-looking
statements.

         Forward-looking statements reflect our current view with respect to
future events and are subject to certain risks, uncertainties and assumptions.
Many factors could cause our actual results, performance or achievements to be
materially different from any future results, performance or achievements that
may be expressed or implied by the forward-looking statements, including, among
others, those set forth in this section and the following:

         -        the results of pre-clinical and clinical trials involving our
                  products;

         -        the failure to receive regulatory approvals on a timely basis
                  or at all;

         -        the failure to maintain adequate capital resources;

         -        the introduction of competing products by other companies;

         -        the lack of acceptance of any new products we may develop;

         -        changes in currency exchange rates;

         -        changes in general economic and business conditions; and

         -        changes in business strategy.

         Should one or more of these risks or uncertainties materialize, or
should underlying assumptions prove incorrect, actual results may vary
materially from those described in this report as anticipated, believed,
estimated, expected, planned or intended.



                                       11
<PAGE>   13

     IF WE ARE UNABLE TO DEVELOP COMMERCIALLY SUCCESSFUL PRODUCTS, WE WILL BE
     UNABLE TO GENERATE SIGNIFICANT REVENUES.

         Our limited product launches to date have not generated significant
revenues and may not generate significant revenues in the future. We have a
variety of product candidates in various stages of development and will need to
undertake substantial additional research and development and preclinical and
clinical testing of our product candidates. These efforts may not result in the
development of any commercially successful products, in which case we will not
be able to generate significant revenues.

         We may fail to successfully develop a product candidate for many
reasons including:

         -        a product candidate fails in preclinical studies;

         -        a potential product is not shown to be safe and effective in
                  clinical trials;

         -        we fail to obtain regulatory approval for the product;

         -        we fail to produce a product in commercial quantities at an
                  acceptable cost; and

         -        a product does not gain market acceptance.

     BECAUSE WE ARE AN EARLY STAGE BIOTECHNOLOGY COMPANY THAT HAS A HISTORY OF
     OPERATING LOSSES, WE ANTICIPATE FUTURE LOSSES AND MAY NEVER BECOME
     PROFITABLE.

         To date, we have not been profitable. We expect to incur operating
losses over the next several years and may never be profitable. We had on a U.S.
GAAP basis:

         -        net losses of approximately $12.7 million for the fiscal year
                  ended December 31, 1996;

         -        net losses of approximately $16.8 million for the fiscal year
                  ended December 31, 1997; and

         -        net losses of approximately $15.9 million for the fiscal year
                  ended December 31, 1998.

         Losses result principally from costs associated with research,
development and clinical testing activities before the marketing of products.
Collaborative research, development and licensing arrangements, research grants
and interest income have generated most of our revenue to date. Our
profitability will depend on our ability to generate revenues from product
candidates that are currently under development and to enter into new
partnerships for the licensing of our product candidates while maintaining
existing partnerships.

     IF WE ARE UNABLE TO MAINTAIN AND ENTER INTO NEW COLLABORATIVE ARRANGEMENTS,
     OUR ABILITY TO DEVELOP AND MARKET PRODUCT CANDIDATES WILL SUFFER AND WE
     WILL BE UNABLE TO SUSTAIN OUR BUSINESS.

         Our primary focus will continue to be on the research and development
of new pharmaceutical products and, therefore, we will be dependent on our
existing alliances and new alliances with third parties to provide development,
manufacturing, marketing and sales capabilities. Our ability to obtain new
agreements will depend, in part, on the success of our clinical trials.
Collaborators and licensees have significant discretion over the resources they
devote to these efforts. Our success, therefore, will depend on the ability and
intention of these outside parties to perform their responsibilities and devote
sufficient resources to collaborations with us. We cannot guarantee that:



                                       12
<PAGE>   14

         -        we will be able to establish additional collaborative
                  arrangements or license agreements;

         -        any collaborative arrangement or agreement will be on
                  favorable terms; or

         -        any existing or future collaborative arrangement or agreement
                  will result in a successful product and/or generate
                  significant revenue.

         In addition, there can be no assurance that our collaborators and
licensees will not pursue alternative technologies either on their own or in
collaboration with others, including our competitors.

     IF WE FAIL TO OBTAIN ADEQUATE INTELLECTUAL PROPERTY RIGHTS FOR OUR PRODUCT
     CANDIDATES, COMPETITORS MAY BE ABLE TO TAKE ADVANTAGE OF OUR RESEARCH AND
     DEVELOPMENT EFFORTS. WE MAY ALSO BE SUBJECT TO CLAIMS OF INTELLECTUAL
     PROPERTY INFRINGEMENT BY THIRD PARTIES.

         Our success will depend, in large part, on our ability to obtain and
maintain patent or other proprietary protection for our technologies, products
and processes. If we are not able to obtain patent protection for certain of our
products or secure patents that are sufficiently broad in their scope,
competitors may be able to take advantage of our research and development
efforts. Legal standards relating to the validity of patents covering
pharmaceutical or biotechnological inventions and the scope of claims made under
such patents are still developing. There is no consistent policy regarding the
breadth of claims allowed in biotechnology patents. The patent position of a
biotechnology company is highly uncertain and involves complex legal and factual
questions.

         There can be no assurance that competitors will not develop
substantially equivalent techniques or otherwise gain access to our
technologies. We may have to initiate litigation to enforce our patent and
license rights. If our competitors file patent applications that claim
technology also claimed by us, we may have to participate in interference or
opposition proceedings to determine the priority of invention. An adverse
outcome could subject us to significant liabilities to third parties and require
us to cease using technology owned by, or to license disputed rights from, third
parties.

         Our success also depends on our ability to operate without infringing
the proprietary rights of third parties with respect to products that facilitate
our ability to develop and exploit our own products. If infringement occurs, we
may have to develop an alternative technology or reach an agreement for the
license of the necessary rights from the third party. Should this be necessary,
we cannot assure you that we can obtain or develop those technologies or obtain
those licenses, and as a result, may be unable to develop and market our product
candidates.

         The cost to us of any litigation or proceeding relating to intellectual
property rights, even if resolved in our favor, could be substantial. Some of
our competitors may be able to sustain the costs of litigation more effectively
than us because of their substantially greater resources.

     IF WE ARE UNABLE TO GENERATE SIGNIFICANT REVENUES FROM OPERATIONS, WE WILL
     REQUIRE ADDITIONAL FINANCING. THIS FINANCING MAY NOT BE AVAILABLE OR MAY BE
     AVAILABLE ON TERMS THAT DILUTE OUR SHAREHOLDERS' INTERESTS.

         We will require significant revenue from product sales, collaborative
and licensing arrangements and strategic alliances to fund our ongoing
operations. If we are unsuccessful in generating this revenue or this revenue is
insufficient to fund proposed projects, then we will require additional
financing. Additional financing may not be available to us on favorable terms or
at all. If we have insufficient funds or are unable to raise additional funds,
we may be required to delay, reduce or cease certain of our programs and may be
unable to continue our operations at their current level.



                                       13
<PAGE>   15

         Future financings may result in the substantial dilution of
shareholders' interests and may result in future investors being granted rights
superior to those of existing shareholders. For a discussion of our liquidity,
see "Item 7. Management's Discussion and Analysis of Financial Condition and
Results of Operations."

     REGULATION BY GOVERNMENT AGENCIES IMPOSES SIGNIFICANT COSTS AND
     RESTRICTIONS ON OUR BUSINESS ACTIVITIES.

         The production and sale of pharmaceutical products is highly regulated.
Our ability and the ability of our partners to secure regulatory approval for
our products and to continue to satisfy regulatory requirements will determine
our future success. We may not receive required regulatory approvals for our
products or receive approvals in a timely manner. In particular, the U.S. Food
and Drug Administration and comparable agencies in foreign countries, including
the European Medicines Evaluation Agency and the Medicine Control Agency in the
U.K., must approve human therapeutic and preventive products before they are
marketed. This approval process can involve lengthy and detailed laboratory and
clinical testing, sampling activities and other costly and time-consuming
procedures. While the time required to obtain approval varies, it can take
several years. Delays in obtaining or the failure to obtain regulatory approvals
or the restriction, suspension or revocation of regulatory approvals could
adversely affect the marketing of products and our ability to receive product
revenues or royalties. We cannot guarantee that we will be able to obtain the
necessary approvals for clinical testing or for the manufacturing and marketing
of any products that we develop.

         We are also subject to ongoing regulatory review. Discovery of
previously unknown problems with a product, manufacturer or facility or other
violations of regulatory requirements may result in

         -        fines;

         -        suspensions of regulatory approvals;

         -        product recalls; and

         -        criminal prosecution.

         For further discussion of regulations and potential penalties, see
     "Item 1. Business - Government Regulation."

     OUR COMPETITORS MAY HAVE GREATER RESOURCES FOR DEVELOPING PRODUCTS AND AS A
     RESULT MAY BE ABLE TO DEVELOP PRODUCTS THAT ARE SUPERIOR TO OUR PRODUCT
     CANDIDATES OR LAUNCH COMPETING PRODUCTS BEFORE WE DO.

         The pharmaceutical industry is highly competitive. We compete with
pharmaceutical companies in the United States, the United Kingdom, Europe and
elsewhere for both our existing products and those currently under development.
Many of these companies have research, development, marketing, financial and
personnel resources greater than ours. Competitors may develop and receive
regulatory approval for a marketable product before we do. Competitors may also
develop a product that is more effective or economically viable than our product
candidates, rendering our product candidates obsolete. We anticipate that we
will face increased competition in the future as new companies enter our markets
and alternative drugs and technologies become available.



                                       14
<PAGE>   16

     THE LOSS OF KEY EMPLOYEES COULD WEAKEN OUR SCIENTIFIC AND MANAGEMENT
     EXPERTISE AND DELAY THE DEVELOPMENT OF OUR PRODUCT CANDIDATES.

         Although we have employment agreements with our key personnel with the
aim of securing their services for a minimum period, we cannot guarantee the
retention of their services. The loss of certain key personnel could weaken our
scientific and management expertise and delay the development of our product
candidates.

     ANNOUNCEMENTS, DEVELOPMENTS AND/OR REGULATORY CHANGES IN THE BIOTECHNOLOGY
     SECTOR MAY CAUSE OUR SHARE PRICE TO FLUCTUATE.

         The market price of our common stock may be affected by announcements
from or about other companies in the biotechnology sector. Factors that could
cause our stock price to fluctuate in the future may include:

         -        announcements by other biotechnology companies of clinical
                  trial results and other product developments;

         -        adverse developments in the protection of intellectual
                  property or other legal matters;

         -        announcements in the scientific and research community;

         -        changes in treatment recommendations or guidelines by private
                  health organizations or science foundations;

         -        regulatory changes that affect our products; and

         -        changes in third-party reimbursement policies or in medical
                  practices.

     THIRD-PARTY REIMBURSEMENT AND HEALTH CARE COST CONTAINMENT INITIATIVES MAY
     CONSTRAIN OUR FUTURE REVENUES.

         Our ability to market successfully any product we may develop will
depend in part on the level of reimbursement that government health
administration authorities, private health coverage insurers and other
organizations provide for the cost of our products and related treatments. We
may not be able to sell our products profitably if reimbursement is unavailable
or limited in scope. Increasingly, third-party payors are attempting to contain
health care costs in ways that are likely to impact our development of products
including:

         -        challenging the prices charged for health care products;

         -        limiting both coverage and the amount of reimbursement for new
                  therapeutic products;

         -        denying or limiting coverage for products that are approved by
                  the regulatory agencies but are considered experimental or
                  investigational by third-party payors; and

         -        refusing to provide coverage when an approved product is used
                  in a way that has not received regulatory marketing approval.

     WE FACE PRODUCT LIABILITY RISKS AND MAY NOT BE ABLE TO OBTAIN ADEQUATE
     INSURANCE.

         The testing, marketing and sale of our products involve significant
product liability risks. We may be held liable for damages for product failures
or adverse reactions resulting from the use of our products. Although we
maintain product liability insurance, this insurance may not provide



                                       15
<PAGE>   17

adequate coverage against product liability claims. Furthermore, in the future,
we may not be able to obtain insurance on acceptable terms and any insurance
we do obtain may not provide adequate coverage against any asserted claims.

     IF OUR LIVESTOCK DEVELOP DISEASES, WE MAY BE UNABLE TO SUSTAIN OUR CURRENT
     OR FUTURE ANTIBODY PRODUCTION CAPACITIES.

         We supply all of the antisera required for the production of our
antibody products from our own flocks of sheep. We take stringent precautions to
minimize the risk of animal diseases, including scrapie, that could affect our
sheep or the safety of our products. All of the sheep used to produce our
antisera are located in Australia, which the office of the Australian Chief
Veterinary Officer has acknowledged as being scrapie free. However, animal
diseases, including scrapie, could affect our flocks and therefore our ability
to produce antisera.

     YEAR 2000 ISSUES COULD CAUSE INTERRUPTION OR FAILURE OF OUR OR OTHER
     COMPUTER SYSTEMS.

         We use a significant number of computer systems and software programs
in our operations, including applications used in our accounting and
administrative functions. Although we believe that our internal systems and
software applications contain or will contain source codes that are able to
interpret appropriately the dates following December 31, 1999, our failure to
make or obtain necessary modifications to our systems and software could result
in an interruption in or failure of normal business activities and operations.
Failure by our key service providers, vendors and worldwide research and
development, manufacturing and clinical trial partners to make their computer
software programs and operating systems Year 2000 compliant could have a similar
effect. For a discussion of our Y2K readiness, see "Item 7. Management's
Discussion and Analysis of Financial Condition and Results of Operations--Year
2000 Readiness."





                                       16
<PAGE>   18

ITEM 7A.  QUANTITATIVE AND QUALITATIVE DISCLOSURE ABOUT MARKET RISK

         The Company is exposed to market risk from changes in foreign currency
exchange rates and interest rates. The Company's operations consist of
manufacturing and sales activities in foreign countries exposing the Company to
the effects of changes in foreign currency rates. The Company has exposure to
changes in interest rates on certain floating rate debt instruments. The Company
does not currently purchase derivative instruments or engage in hedging
activities to mitigate the risks of fluctuations in foreign currency exchange
rates or interest rates.

         The value of market risk sensitive financial instruments is subject to
change as a result of movements in market rates and prices. For purposes of
specific risk analysis, the Company uses sensitivity analysis to determine the
impact that market risk exposures may have on the Company's debt and other
financial instruments.

         The Company is exposed to foreign currency gains or losses from the
translation of U.S. dollars into other foreign currencies and from sales and
purchases transactions with certain customers and suppliers in foreign
countries. For these transactions, currency exchange rates are agreed upon prior
to the time of the actual transfer of cash. The Company realizes a transaction
gain or loss based upon the actual currency exchange rate at the time the
transaction is completed and records these gains and losses in operations. To
reduce exposure to these fluctuations, the Company maintains cash balances in
its primary foreign currencies. Historically, the primary net foreign currency
market exposures have related to British pounds and Australian dollars. At
December 31, 1998, the Company held cash balances of $7,508,000 denominated in
British pounds and $31,500 denominated in Australian dollars.

         As of December 31, 1998, a hypothetical 10 percent weakening in the
levels of foreign currency exchange rates against the U.S. dollar with all other
variables held constant would result in a decrease in the Company's results of
operations and the fair market value of its financial instruments of $527,000,
as compared to a decrease of $250,000 as of December 31, 1997. Actual results
may differ.

         A hypothetical 10 percent movement in interest rates affecting the
Company's floating rate debt instruments would have an immaterial effect on the
Company's results of operations.




                                       17
<PAGE>   19


Item 8.           FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

                  THERAPEUTIC ANTIBODIES INC. AND SUBSIDIARIES
                          (A Development Stage Company)

                         INDEX TO CONSOLIDATED FINANCIAL
                     STATEMENTS for the years ended December
                             31, 1998, 1997 and 1996
                    and the cumulative development stage from
              August 10, 1984 (inception) through December 31, 1998

<TABLE>
<CAPTION>
                                                                                                               Page
                                                                                                               ----
<S>                                                                                                            <C>
Report of Independent Accountants................................................................................19

Consolidated Financial Statements:

         Balance Sheets..........................................................................................20

         Statements of Operations................................................................................21

         Statements of Stockholders' Equity......................................................................22

         Statements of Cash Flows................................................................................24

         Notes to Financial Statements...........................................................................25
</TABLE>






                                       18
<PAGE>   20


REPORT OF INDEPENDENT ACCOUNTANTS

To the Board of Directors and
Shareholders of Therapeutic Antibodies, Inc.

In our opinion, the accompanying consolidated balance sheets and the related
consolidated statements of operations and comprehensive loss, stockholders'
equity, and cash flows present fairly, in all material respects, the financial
position of Therapeutic Antibodies, Inc. and Subsidiaries, A Development Stage
Company (the Company) at December 31, 1998 and 1997, and the results of their
operations and their cash flows for each of the three years in the period ended
December 31, 1998 and for the period August 10, 1984 (inception) through
December 31, 1998, in conformity with generally accepted accounting principles.
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 of these statements in accordance with
generally accepted auditing standards which 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,
assessing the accounting principles used and significant estimates made by
management, and evaluating the overall financial statement presentation. We
believe that our audits provide a reasonable basis for the opinion expressed
above.

The accompanying financial statements have been prepared assuming that the
Company will continue as a going concern. As discussed in Note 1, the Company
has been in the development stage since inception with its primary activities
being research and development and has not yet commenced planned principal
operations. The Company's efforts to obtain additional financing necessary to
support 1999 activities have not been concluded, raising substantial doubt about
its ability to continue as a going concern. Management's plans in regard to this
matter are also described in Note 1. The financial statements do not include any
adjustments that might result from the outcome of this uncertainty.

/S/ PRICEWATERHOUSECOOPERS, LLP

Louisville, Kentucky
March 5, 1999






                                       19
<PAGE>   21


                  THERAPEUTIC ANTIBODIES INC. AND SUBSIDIARIES
                          (A Development Stage Company)
                           CONSOLIDATED BALANCE SHEETS



<TABLE>
<CAPTION>
                                                                                     December 31, 1998     December 31, 1997
                                                                                     -----------------     -----------------
<S>                                                                                  <C>                   <C>
         ASSETS

Current assets:
     Cash and cash equivalents ...............................................        $  7,760,328            $  4,915,077
     Restricted cash .........................................................             419,168                      --
     Short-term investments ..................................................                  --               1,997,240
     Trade receivables .......................................................              67,677                 594,267
     Value added tax receivable ..............................................             326,849                 179,629
     Inventories .............................................................             287,802                 489,138
     Other current assets ....................................................             712,370                 409,929
                                                                                      ------------            ------------

                   Total current assets ......................................           9,574,194               8,585,280

Property and equipment, net ..................................................          11,074,766              11,456,690
Patent and trademark costs, net ..............................................             678,306                 598,924
Other assets, net ............................................................              94,236                 159,171
                                                                                      ------------            ------------

                   Total assets ..............................................        $ 21,421,502            $ 20,800,065
                                                                                      ============            ============


         LIABILITIES AND STOCKHOLDERS' EQUITY

Current liabilities:
     Accounts payable and accrued expenses ...................................        $  1,755,098            $  1,457,121
     Accrued interest ........................................................             122,486                 146,326
     Current portion of notes payable ........................................           2,159,428               2,545,701
                                                                                      ------------            ------------
                   Total current liabilities .................................           4,037,012               4,149,148

Notes payable, net of current portion ........................................           4,744,216               6,059,072
Deferred revenue .............................................................             342,363                 559,467
Other liabilities ............................................................             275,477                 274,033
                                                                                      ------------            ------------

                   Total liabilities .........................................           9,399,068              11,041,720
                                                                                      ------------            ------------

Convertible redeemable preferred stock - par value $.01 per share;
        1,000,000 shares authorized ..........................................                                          --

Stockholders' equity:
     Common stock - par value $.001 per share; 59,000,000 shares authorized,
        52,057,219 issued and outstanding December 31, 1998; 30,000,000 shares
        authorized, 23,252,825 issued and outstanding December 31, 1997 ......              52,057                  23,253
     Additional paid-in capital ..............................................          87,074,215              68,927,203
     Deficit accumulated during the development stage (1984-1998) ............         (75,301,311)            (59,412,383)
     Other comprehensive income ..............................................             197,473                 220,272
                                                                                      ------------            ------------

                   Total stockholders' equity ................................          12,022,434               9,758,345
                                                                                      ------------            ------------

                   Total liabilities and stockholders' equity ................        $ 21,421,502            $ 20,800,065
                                                                                      ============            ============
</TABLE>



The accompanying notes are an integral part of the consolidated financial
statements.




                                       20
<PAGE>   22


                  THERAPEUTIC ANTIBODIES INC. AND SUBSIDIARIES
                         (A Development Stage Company)
          CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS



<TABLE>
<CAPTION>
                                                                                                              For  the Cumulative
                                                                   For the Years Ended                         Development Stage
                                                                       December 31,                           from August 10, 1984
                                                    ------------------------------------------------------     (inception) through
                                                        1998                 1997                 1996          December 31, 1998
                                                    ------------         ------------         ------------    --------------------
<S>                                                 <C>                  <C>                  <C>             <C>
Operating revenues:
    Sales revenue ..........................        $    529,754         $    295,328         $    288,155         $  1,664,868
    Contract revenue .......................             197,206               97,560              312,452            1,853,209
    Licensing revenue ......................           2,543,925            1,112,955              143,500            3,900,380
    Grant income ...........................              41,488              205,569              118,535              774,007
    Value-added tax and insurance recoveries                  --                   --                   --              577,170
    Other ..................................              80,074               80,008               64,890              300,888
                                                    ------------         ------------         ------------         ------------

                                                       3,392,447            1,791,420              927,532           9,070,522
                                                    ------------         ------------         ------------         ------------


Operating expenses:
    Cost of sales revenue ..................             374,371               50,172              136,842              630,443
    Cost of contract revenue ...............              66,387               60,568              198,147              355,473
    Research and development ...............          11,363,218           11,462,352            9,185,126           53,405,675
    General and administrative .............           4,050,667            3,561,541            2,721,889           16,993,834
    Marketing and distribution .............             547,406              614,598              361,262            2,523,959
    Depreciation and amortization ..........           1,561,951            1,643,922            1,387,916            7,073,621
    Other ..................................              10,485              217,418               20,371              345,310
                                                    ------------         ------------         ------------         ------------

                                                      17,974,485           17,610,571           14,011,553           81,328,315
                                                    ------------         ------------         ------------         ------------

Operating loss .............................         (14,582,038)         (15,819,151)         (13,084,021)         (72,257,793)

     Interest income .......................             239,362              886,511              607,479            2,162,048
     Interest expense ......................          (1,305,549)          (1,001,959)          (1,201,335)          (5,036,131)
     Foreign currency gains ................                  --                   --            1,733,357            1,785,984
     Foreign currency losses ...............            (240,703)            (913,119)                  --           (1,153,822)
     Debt conversion expense ...............                  --                   --             (801,597)            (801,597)
                                                    ------------         ------------         ------------         ------------
Net loss ...................................         (15,888,928)         (16,847,718)         (12,746,117)         (75,301,311)

Preferred stock dividends ..................             (32,877)                  --                   --              (32,877)

                                                    ------------         ------------         ------------         ------------
Net loss applicable to common shareholders .         (15,921,805)         (16,847,718)         (12,746,117)         (75,334,188)
Other comprehensive income (loss), before
    and after tax:
    Change in equity due to foreign currency
      translation adjustments ..............             (22,799)            (455,521)             859,202              197,473
                                                    ------------         ------------         ------------         ------------

Total comprehensive loss ...................        $(15,944,604)        $(17,303,239)        $(11,886,915)        $(75,136,715)
                                                    ============         ============         ============         ============


Basic and diluted net loss per share .......        $      (0.59)        $      (0.74)        $      (0.68)
                                                    ============         ============         ============
Weighted average shares used in computing
    basic and diluted net loss per share ...          26,910,291           22,888,226           18,821,524
                                                    ============         ============         ============
</TABLE>


The accompanying notes are an integral part of the consolidated financial
statements.



                                       21
<PAGE>   23
                  THERAPEUTIC ANTIBODIES INC. AND SUBSIDIARIES
                         (A Development Stage Company)
                CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
for the years ended December 31, 1998, 1997 and 1996 and for the Cumulative
Development Stage from August 10, 1984 (inception) through December 31, 1998

<TABLE>
<CAPTION>
                                                               Common Stock                                 Additional
                                                    ---------------------------------  Common Stock          Paid-In
                                                        Shares          Par Value        Subscribed          Capital
                                                    ------------      ---------------  --------------      -------------
<S>                                                 <C>               <C>              <C>                 <C>
Sale of common stock 1985 - 1995 .............        10,055,243        $10,055              2,122         $ 27,418,235
One thousand-for-one stock split 1985 ........         2,797,200          2,797                                  (2,797)
Exercise of stock warrants
     at $.75 per share 1989 and $.50-$.75 1995           166,402            167                                 110,134
Issuance of shares 1990, 1992, 1994 and 1995 .         2,121,883          2,122             (2,122)             (13,677)
Issuance of shares for acquisition
     of PAL 1992 .............................         1,415,875          1,416                               3,155,984
Issuance of warrants 1992 and 1993 ...........                                                                  212,000
Translation adjustment 1992 - 1995
Net loss from August 10, 1984 (inception)
     to December 31, 1995 ...................
                                                      ----------        -------        -----------         ------------

Balance, December 31, 1995 ...................        16,556,603         16,557                 --           30,879,879
Issuance of shares upon debt conversion ......           466,383            466                               2,564,639
Debt conversion charge .......................           801,597
Sale of common stock, net ....................           164,332            165                                 933,384
Initial public offering, net .................         4,190,477          4,190                              30,370,518
Exercise of stock warrants
     at $.75-$4.50 per share .................           942,897            943                               1,332,989
Exercise of stock options ....................            33,000             33                                  89,667
Issuance of warrants .........................            46,944
Stock-based compensation expense .............            62,431
Net loss 1996  ...............................
Translation adjustment .......................
                                                      ----------        -------        -----------         ------------

Balance, December 31, 1996 ...................        22,353,692         22,354                 --           67,082,048
Exercise of stock warrants
     at $.60-$3.50 per share .................           888,716            889                               1,357,197
Stock-based compensation expense .............           469,438
Exercise of stock options ....................            10,417             10                                  18,520
Net loss 1997 ................................
Translation adjustment .......................
                                                      ----------        -------        -----------         ------------

Balance, December 31, 1997 ...................        23,252,825         23,253                 --           68,927,203
Refinancing, net .............................        28,690,561         28,690                 --           17,642,828
Exercise of stock warrants
     at $2.50 per share ......................            20,500             21                                  51,229
Stock-based compensation expense .............           160,129
Exercise of stock options ....................            93,333             93                                     (93)
Issuance of warrants .........................           292,919
Net loss 1998 ................................
Translation adjustment .......................
                                                      ----------        -------        -----------         ------------

Balance, December 31, 1998 ...................        52,057,219        $52,057                 --         $ 87,074,215
                                                      ==========        =======        ===========         ============
<CAPTION>
                                                                                 Deficit
                                                            Stock           Accumulated During      Other
                                                        Subscriptions          Development       Comprehensive
                                                          Receivable              Stage              Income           Total
                                                      -----------------    ------------------    -------------     ------------
<S>                                                   <C>                  <C>                   <C>               <C>
Sale of common stock 1985 - 1995 .............          (3,528,537)                  --                  --        $23,901,875
One thousand-for-one stock split 1985 ........
Exercise of stock warrants
     at $.75 per share 1989 and $.50-$.75 1995                                                                         110,301
Issuance of shares 1990, 1992, 1994 and 1995             3,528,537                                                   3,514,860
Issuance of shares for acquisition
     of PAL 1992 .............................                                                                       3,157,400
Issuance of warrants 1992 and 1993 ...........                                                                         212,000
Translation adjustment 1992 - 1995 ...........                                                 $   (183,409)          (183,409)
Net loss from August 10, 1984 (inception)
     to December 31, 1995 ....................                             $(29,818,548)                           (29,818,548)
                                                      ------------         ------------         -----------        -----------

Balance, December 31, 1995 ...................                  --          (29,818,548)           (183,409)           894,479
Issuance of shares upon debt conversion ......                                                                       2,565,105
Debt conversion charge .......................                                                                         801,597
Sale of common stock, net ....................                                                                         933,549
Initial public offering, net .................                                                                      30,374,708
Exercise of stock warrants
     at $.75-$4.50 per share .................                                                                       1,333,932
Exercise of stock options ....................                                                                          89,700

Issuance of warrants .........................                                                                          46,944
Stock-based compensation expense .............                                                                          62,431
Net loss 1996 ................................                              (12,746,117)                           (12,746,117)
Translation adjustment .......................                                                      859,202            859,202
                                                      ------------         ------------         -----------        -----------

Balance, December 31, 1996 ...................                  --          (42,564,665)            675,793         25,215,530
Exercise of stock warrants
     at $.60-$3.50 per share .................                                                                       1,358,086
Stock-based compensation expense .............                                                                         469,438
Exercise of stock options ....................                                                                          18,530
Net loss 1997 ................................                              (16,847,718)                           (16,847,718)
Translation adjustment .......................                                                     (455,521)          (455,521)
                                                      ------------         ------------         -----------        -----------

Balance, December 31, 1997 ...................                  --          (59,412,383)            220,272          9,758,345
Refinancing, net .............................                  --                                                  17,671,518
Exercise of stock warrants
     at $2.50 per share ......................                                                                          51,250
Stock-based compensation expense .............                                                                         160,129
Exercise of stock options ....................                                                                              --
Issuance of warrants .........................                                                                         292,919
Net loss 1998 ................................                              (15,888,928)                           (15,888,928)
Translation adjustment .......................                                                      (22,799)           (22,799)
                                                      ------------         ------------         -----------        -----------
Balance, December 31, 1998 ...................                  --         $(75,301,311)        $   197,473        $12,022,434
                                                      ============         ============         ===========        ===========
</TABLE>
The accompanying notes are an integral part of the consolidated financial
statements.


                                       22
<PAGE>   24


                  Therapeutic Antibodies Inc. and Subsidiaries
                         (A Development Stage Company)
                     CONSOLIDATED STATEMENTS OF CASH FLOWS



<TABLE>
<CAPTION>
                                                                                                                FOR the Cumulative
                                                                             For the Years Ended                Development Stage
                                                                                 December 31,                  From August 10, 1984
                                                               ----------------------------------------------- (Inception) Through
                                                                    1998             1997             1996       December 31, 1998
                                                               -------------     ------------     ------------ -------------------
<S>                                                            <C>               <C>              <C>          <C>
Cash flow from operating activities:
    Net loss ...............................................    $(15,888,928)    $(16,847,718)    $(12,746,117)    $(75,301,311)
    Adjustments to reconcile net loss to net
    cash used in operating activities:
        Depreciation and amortization ......................       1,561,951        1,643,922        1,387,916        7,073,621
        Disposal of property and equipment .................         279,328          282,806          532,817        1,206,566
        Foreign currency loss (gain) .......................         240,703          913,119       (1,733,357)        (632,162)
        Warrant expense ....................................         292,919               --           46,944          486,913
        Stock-based compensation expense ...................         160,129          487,968           62,431          710,528
        Debt conversion expense ............................              --               --          801,597          801,597
        Changes in:
             Restricted cash ...............................        (419,168)              --               --         (419,168)
             Trade receivable ..............................         355,227         (434,140)         (52,373)        (154,005)
             Inventories ...................................         201,335          (88,971)          (7,073)        (173,629)
             Other current assets ..........................        (301,155)          60,616         (128,813)        (709,262)
             Accounts payable and accrued expenses .........         333,821          646,550         (340,411)       1,887,203
             Accrued interest ..............................          86,749             (777)         (37,512)         862,974
             Deferred revenue ..............................        (218,581)         (84,063)         313,670           11,026
             Other .........................................          32,877               --         (234,301)         (10,612)
                                                                ------------     ------------     ------------     ------------

      Net cash used in operating activities ................     (13,282,793)     (13,420,688)     (12,134,582)     (64,359,721)
                                                                ------------     ------------     ------------     ------------

Cash flows from investing activities:
    Purchase of property and equipment .....................      (1,385,027)      (1,257,448)      (3,293,214)     (15,273,350)
    Patent and trademark costs, net ........................         (99,657)        (109,709)        (198,502)        (760,654)
    Purchase of short-term investments .....................              --      (11,931,028)      (2,002,266)     (13,933,294)
    Maturity of short-term investments .....................       2,094,509       11,838,785               --       13,933,294
    Other ..................................................              --               --               --           69,750
                                                                ------------     ------------     ------------     ------------
      Net cash provided by (used in) investing activities ..         609,825       (1,459,400)      (5,493,982)     (15,964,254)
                                                                ------------     ------------     ------------     ------------
Cash flows from financing activities:
    Proceeds from notes payable ............................       4,641,239           17,605        2,518,239       20,450,244
    Payments on notes payable ..............................      (3,346,423)      (1,299,211)      (1,969,138)      (9,523,894)
    Proceeds from line of credit ...........................              --           61,897          123,371        3,371,278
    Payments on line of credit .............................         (43,836)        (118,505)      (1,018,738)      (3,371,278)
    Proceeds from convertible debt, net ....................              --               --        5,432,500        9,655,000
    Payments on convertible debt ...........................              --               --       (4,320,325)      (4,320,325)
    Proceeds from issuance of stock, net ...................      14,707,529        1,358,086       32,326,264       71,719,109
    Proceeds from issuance of warrants .....................              --               --               --           65,000
    Other ..................................................          (1,869)          39,184           (5,628)        (149,467)
                                                                ------------     ------------     ------------     ------------

      Net cash provided by financing activities ............      15,956,640           59,056       33,086,545       87,895,667
                                                                ------------     ------------     ------------     ------------

Effect of exchange rate changes on cash and cash equivalents        (438,421)        (766,427)       1,647,473          188,636
                                                                ------------     ------------     ------------     ------------
Net (decrease) increase in cash and cash equivalents .......       2,845,251      (15,587,459)      17,105,454        7,760,328

Cash and cash equivalents, beginning of period .............       4,915,077       20,502,536        3,397,082               --
                                                                ------------     ------------     ------------     ------------
Cash and cash equivalents, end of period ...................    $  7,760,328     $  4,915,077     $ 20,502,536     $  7,760,328
                                                                ============     ============     ============     ============
Supplemental cash flow disclosures:
    Cash payments for interest (net of amount capitalized) .    $    929,106     $  1,017,000     $  1,142,738     $  1,612,778
                                                                ============     ============     ============     ============

</TABLE>

The accompanying notes are an integral part of the consolidated financial
statements.








                                       23
<PAGE>   25

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

1.       ORGANIZATION AND OPERATIONS OF THE COMPANY:

         Therapeutic Antibodies Inc. (the "Company") was incorporated on August
         10, 1984 for the purpose of engaging in the research, development,
         production and marketing of therapeutic antibodies that provide
         protection against venoms, drugs, toxins and infectious diseases. The
         Company is a development stage company as defined in Statement of
         Financial Accounting Standards (SFAS) No. 7, Accounting and Reporting
         by Development Stage Enterprises, and is devoting substantially all of
         its present efforts to research and development, including
         pre-production activities. Certain of the Company's research and
         development and product testing activities are carried out through
         affiliations with scientists at academic institutions around the world.
         These affiliations include preclinical and clinical research
         agreements, consulting agreements, patent and royalty agreements and
         facility leases. Inherent in the development stage is a range of risks
         including the need for, and uncertainty of, future financing. The
         Company also faces risks stemming from the nature of the
         biopharmaceutical industry, such as the risk of competition, the risk
         of regulatory change, including potential changes in health care
         coverage, uncertainties associated with obtaining and enforcing patents
         and proprietary technology, uncertainty of the approval of products by
         governmental agencies and risks related to fluctuations in interest
         rates and foreign currencies.

         Since its inception, the Company has been in the development stage,
         devoting its efforts and resources to drug discovery and development
         programs. Capital resources have been used for the establishment and
         expansion of production facilities, for product research and
         development activities, for clinical testing and to meet Therapeutic
         Antibodies' overall increased working capital requirements. Management
         does not expect revenues from product sales to be a significant source
         of funding until additional products receive regulatory approval.
         Although the Company anticipates the launch of CroTAb(R) following FDA
         approval in mid-1999, revenues from sales of CroTAb(R) are not expected
         to be significant in 1999. Future capital requirements will depend on
         numerous factors including the progress of the Company's research
         programs and clinical trials, the development of regulatory
         submissions, the receipt of FDA approval of CroTAb(R), the commercial
         viability of the Company's products, the ability to attract
         collaborative partners with sales, distribution and marketing
         capabilities, and the terms of any new licensing arrangements. Funds
         for the Company's operating and capital requirements historically have
         been provided by the sale of equity and debt and from collaboration
         agreements and other financing arrangements. In November 1998, the
         Company successfully completed the private placement (described below
         in more detail) of 28,690,561 shares of Common Stock in the United
         States and in the United Kingdom, raising net cash proceeds of
         $12,600,000. At the time of the private placement, the Company
         estimated that the fundraising, together with licensing and contract
         revenue, would provide sufficient funds to allow the Company to reach
         the launch of several of its products, and accordingly bring the
         Company to the point at which its revenues can sustain ongoing product
         development. With the loss of the 1999 milestone payments and product
         revenues that would have been received under the Searle agreement, the
         Company will need to raise additional financing by mid-1999 to fund
         operations. The Company is currently pursuing several financing
         alternatives, including preliminary discussions that may lead


                                       24
<PAGE>   26
         to a merger on a share exchange basis at a value that approximates the
         current market value of Therapeutic Antibodies. The Board has also
         entered into discussions with third parties relating to the sale of
         additional debt or equity securities, the disposal of certain non-core
         investments, entering into additional product licensing arrangements,
         and possible combinations or collaborations with strategic partners.
         While the Directors believe that they will be able to successfully
         implement one or more of these financing strategies, there can be no
         assurance that they will be able to do so or to otherwise obtain
         financing on terms acceptable to the Company. The financial statements
         do not include any adjustments that might result from the outcome of
         this uncertainty. In the meantime, the Company continues to take
         measures, implemented in 1998, to conserve cash resources, while
         sustaining the progress of clinical trials for products that promise
         the most success.

         On November 9, 1998, the Company completed a $19,500,000
         ((pound)11,500,000) capital refinancing involving the issuance of
         28,690,561 new shares of Common Stock on the London Stock Exchange at
         $.68 (40 pence) per share. The refinancing included the private
         placement of 21,300,000 new shares of Common Stock. It also included
         the conversion of $2,000,000 (all outstanding shares) of the Series A
         Convertible Redeemable Preferred Stock issued by the Company in
         September 1998 and accrued dividends thereon of $33,000 into 2,995,692
         shares of the Company's Common Stock and of $2,900,000
         ((pound)1,700,000) principal and interest amount of certain loan notes
         into 4,394,869 shares of Common Stock. Approximately $12,600,000
         ((pound)7,500,000) in cash was raised in the private placement, net of
         expenses, which will be used to fund the ongoing development of the
         Company's products and to repay the balance of the outstanding 15%
         Notes (see Note 5).



                                       25
<PAGE>   27
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS, CONTINUED

2.       SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES:

         a.       PRINCIPLES OF CONSOLIDATION: The consolidated financial
                  statements of the Company include the accounts of the Company
                  and its wholly owned subsidiaries. All intercompany accounts
                  and transactions have been eliminated.

         b.       FOREIGN CURRENCY TRANSLATION: Assets and liabilities of
                  foreign subsidiaries denominated in foreign currencies are
                  translated to United States (U.S.) dollars at period-end
                  exchange rates. Revenues and expenses denominated in foreign
                  currencies are translated at average exchange rates for the
                  period. Translation adjustments are reported as a separate
                  component of stockholders' equity. The effects of translation
                  of intercompany loans to international subsidiaries, which
                  have been designated as long-term investments, are also
                  included in the separate component of stockholders' equity. At
                  December 31, 1998, the Company had approximately (pound)
                  4,524,000 in British sterling and $31,500 in Australian
                  dollars which were translated to U.S. dollars at the year end
                  currency rates of 1.6595 and 0.6123, respectively. Foreign
                  currency transaction losses for the years ended December 31,
                  1998 and 1997 were $240,703 and $913,119 and foreign currency
                  transaction gains for the year ending December 31, 1996 were
                  $1,733,357.

         c.       CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS: All highly liquid
                  investments with an original maturity of three months or less
                  when purchased are classified as cash equivalents. Restricted
                  cash relates to amounts received pursuant to Therapeutic
                  Antibodies' collaborative agreement with G.D. Searle & Co. The
                  funds were to be used for the identification, development and
                  commercialization of a new antibody based drug designed to
                  titrate the effects of Searle's new xemilofiban and orbofiban
                  anticoagulant products. In January 1999, however, Searle made
                  the decision to cease development of its xemilofiban and
                  orbofiban projects and exercised its right to terminate its
                  agreement with the Company.

                  Financial instruments that potentially subject the Company to
                  concentrations of credit risk consist principally of cash and
                  temporary cash investments. The Company places substantially
                  all of its cash and temporary cash investments with one major
                  financial institution. As of December 31, 1998, and at times
                  throughout the period, cash balances were in excess of Federal
                  Deposit Insurance Corporation insurance limits. The Company
                  has not experienced any losses in such accounts and believes
                  no significant exposure from this concentration exists with
                  respect to cash and temporary cash investments. The Company
                  also maintains balances at a U.S. institution denominated in
                  British pounds sterling and Australian dollars.

                  Short-term investments consisted of governmental and corporate
                  debt instruments. The carrying value of these short-term
                  investments approximated fair value at December 31, 1997.

         d.       INVENTORIES: Inventories are stated at the lower of cost
                  (first-in, first-out) or market.



                                       26
<PAGE>   28
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS, CONTINUED

2.       SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES, CONTINUED:
         e.       LONG-LIVED ASSETS: Property and equipment is stated at cost
                  and is depreciated using the straight-line method over the
                  estimated useful life of the asset as follows: Buildings and
                  improvements - 10 to 20 years Furniture, fixtures and
                  equipment - 3 to 10 years Livestock - 5 years

                  Leasehold improvements are amortized over the shorter of their
                  estimated life or the period of the related leases, including
                  anticipated renewals for which the Company has an option.
                  Patent costs consist of legal fees associated with patent
                  applications and filings and trademark costs consists of legal
                  fees associated with trademark procurement. Once a patent is
                  granted, costs are amortized using the straight-line method
                  over 17 years from the patent grant date. Accumulated
                  amortization was $55,117 and $27,282 as of December 31, 1998
                  and 1997, respectively. Trademark costs are amortized using
                  the straight-line method over 10 years. Accumulated
                  amortization was $27,231 and $34,790 as of December 31, 1998
                  and 1997, respectively.

                  The carrying value of long-lived assets is reviewed if the
                  facts and circumstances suggest that they may be impaired. If
                  this review indicates that the carrying value will not be
                  recoverable, the carrying value is reduced to fair value.

         f.       REVENUE RECOGNITION: Revenues from sales of products are
                  recognized at the time of shipment. Revenues from licensing
                  agreements are recognized when earned based upon signing the
                  agreement, if applicable, and upon reaching predefined
                  milestones in the development program. Product sales revenues,
                  contract revenues and licensing revenues are nonrefundable and
                  not subject to any future obligations.

                  The Company has received grants from the United Kingdom (U.K.)
                  and Australia as a result of reaching certain employment
                  levels and constructing production facilities. Grants related
                  to employment levels and conducting clinical trials are
                  recognized as income at the point in time that the conditions
                  of the grant are satisfied. Grants related to construction of
                  production facilities are recognized over the life of the
                  facility.

                  Deferred grant income of $249,000 relating to U.K. grants
                  received in 1995 and 1994 is included in deferred revenue at
                  December 31, 1998. For the years ended December 31, 1998, 1997
                  and 1996 deferred grant income relating to the 1995 and 1994
                  U.K. grants was recognized in the amounts of $41,000, $77,000
                  and $39,000, respectively.

                  In 1996, the Company received a $79,000 development grant from
                  the Department of Industry and Trade of the Government of
                  South Australia for expansion of the Company's Australian
                  operations. The grant is structured in the form of a 99 year
                  interest-free loan and the entire amount was recognized upon
                  receipt. The Company received a $129,000 grant from the Welsh
                  Government in 1997 for expansion of the Company's Welsh
                  operations


                                       27
<PAGE>   29

                  and the entire amount was recognized upon receipt.

         g.       RESEARCH AND DEVELOPMENT COSTS: Research and development costs
                  ("R&D"), costs for developing and improving manufacturing
                  processes, pilot plant operations and inventories of products
                  not yet approved for sale by governmental regulatory
                  authorities are expensed when incurred.











                                       28
<PAGE>   30
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS, CONTINUED

         h.       BASIC AND DILUTED EARNINGS PER COMMON SHARE: The basic and
                  diluted earnings per common share calculation was based on
                  SFAS No. 128, "Earnings per Share", which the Company adopted
                  during the year ended December 31, 1997.

                  The calculations are based upon the weighted average number of
                  shares of common stock outstanding during each period. Options
                  to purchase 2,589,609, 2,032,388 and 1,612,376 and warrants to
                  purchase 1,265,207, 737,374 and 1,726,738 shares of common
                  stock for the years ended December 31, 1998, 1997 and 1996,
                  respectively, have been excluded from the computation of
                  diluted earnings per common share because their effect is
                  antidilutive.

         i.       VALUE-ADDED TAX RECEIVABLE: The Company's operations in the
                  U.K. are subject to value-added tax (VAT) where the Company
                  pays tax at a rate of 17.5% on most goods and services
                  purchased. These VAT taxes are subject to refund based on
                  returns, which are filed quarterly with U.K. taxing
                  authorities. VAT paid by the Company after December 31, 1993
                  is recorded as a receivable at the time it is paid. In years
                  prior to 1994, VAT tax paid was included with the related
                  expense. In 1994, the Company determined it could file refunds
                  for VAT paid in prior years in the amount of $475,760 which
                  was recorded as revenue in 1994.

         j.       FINANCIAL STATEMENTS ESTIMATES: The preparation of financial
                  statements in conformity with generally accepted accounting
                  principles requires management to make estimates and
                  assumptions that affect the reported amounts of assets and
                  liabilities and disclosure of contingent assets and
                  liabilities at the dates of the financial statements and the
                  reported amounts of revenues and expenses during the reporting
                  periods. Actual results could differ from those estimates.

3.       RECENTLY ISSUED ACCOUNTING PRONOUNCEMENTS:

         During 1998, the Financial Accounting Standards Board issued Statement
         of Position No. 98-1 "Accounting for the Costs of Computer Software
         Developed or Obtained for Internal Use" ("SOP No. 98-1") and Statement
         of Position No. 98-5 "Reporting on the Costs of Start-Up Activities"
         ("SOP No. 98-5"). The Company will adopt SOP No. 98-1 and SOP No. 98-5
         in 1999 as required.

         The Company primarily purchases all computer software from third party
         vendors and does not engage in the development of internal use
         software. The Company capitalizes all costs to acquire computer
         software from third party vendors. Consequently, the implementation of
         SOP No. 98-1 is not expected to have a material impact on the Company.

         The Company expenses all start-up related costs and accordingly, the
         implementation of SOP No. 98-5 will not have a significant impact on
         the Company.

         In June 1998, the Financial Accounting Standards Board issued SFAS No.
         133, "Accounting for Derivative Instruments and Hedging Activities". In
         general, SFAS No. 133 requires that all derivatives be recognized as
         either assets or liabilities in the balance sheet at their fair value,
         and sets forth the manner in which gains or losses thereon are to be
         recorded. The treatment of such gains and losses is dependent upon the
         type of exposure, if any, for




                                       29
<PAGE>   31

         which the derivative is designated as a hedge. This statement is
         effective for periods beginning after June 15, 1999. Management is
         currently assessing the impact of adopting SFAS No. 133, but does not
         anticipate a significant impact on the Company's financial position or
         results of operations.











                                       30
<PAGE>   32
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS, CONTINUED

4.       PROPERTY AND EQUIPMENT:

         Property and equipment at December 31 consists of the following:



<TABLE>
<CAPTION>
                                                              1998                 1997
                                                          -----------          -----------
               <S>                                        <C>                  <C>
               Land                                       $   617,668          $   614,429
               Buildings and improvements                   8,314,053            7,976,570
               Construction in progress                             -               64,571
               Furniture, fixtures and equipment            7,870,686            7,141,732
               Livestock                                      905,062              870,323
                                                          -----------          -----------

                                                           17,707,469           16,667,625
               Accumulated depreciation                     6,632,703            5,210,935
                                                          -----------          -----------

                                                          $11,074,766          $11,456,690
                                                          ===========          ===========
</TABLE>


         Buildings and improvements includes $10,120 and $38,288 of capitalized
         interest associated with the construction of a building in Australia in
         1997 and 1996, respectively and $491,408 with the construction of
         buildings in the U.K. in 1995.







                                       31
<PAGE>   33
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS, CONTINUED

5.   Notes Payable:

     Notes payable at December 31 consist of:




<TABLE>
<CAPTION>
                                                                                                  1998                1997
                                                                                               -----------        ------------
<S>                                                                                            <C>                <C>
   6% convertible notes payable, principal due October 1, 2000, interest
       due semi-annually on April 1 and October 1                                              $ 2,905,000        $  2,905,000

   Capital lease payable to Phoenixcor Inc. (formerly Aberlyn Capital Management Limited
       Partnership), interest at 14.5%-18%, collateralized by equipment in the U.K. with a
       net book value of $1 million with monthly payments due through January 2000                 568,118           1,697,708

   11.5% note payable to Equitas, LP, principal due March 1999, interest due
       quarterly in November, February, May, and August, collateralized by
       various assets of the Company's subsidiaries and common shares of the
       Company's subsidiary, TAb U.K.                                                              800,000             800,000

   12% and 15% unsecured notes payable to an officer of the Company, interest
       due monthly and/or quarterly, principal due January 1999 and December
       2000, respectively                                                                          500,000           1,000,000

   Note payable to Bank of Wales PLC, collateralized by certain real property in
       the U.K., interest at 2.5% over Bank of Wales lending rate (effective
       rate of 8.75% at December 31, 1998), principal and interest due monthly
       over 10 years through February 2005                                                         356,445             395,363

   Notes payable to South Australian Minister for Primary Industries,
       collateralized by building and equipment, interest rates from 6.5% to 9%,
       principal repayable in annual installments through April 2008                             1,199,775           1,217,177

   Capital equipment leases, interest rates from 10.6% to 21.3%, principal and
       interest payable monthly through 2001                                                       206,711             327,172

   6% note payable to CATO, Inc., interest due semi-annually, principal due December 2000          100,000             100,000

   Other                                                                                           267,595             162,353
                                                                                               -----------        ------------
                                                                                                 6,903,644           8,604,773
   Less current portion                                                                          2,159,428           2,545,701
                                                                                               -----------        ------------
                                                                                               $ 4,744,216        $  6,059,072
                                                                                               ===========        ============
</TABLE>



                                       32
<PAGE>   34



NOTES TO CONSOLIDATED FINANCIAL STATEMENTS, CONTINUED

5.       NOTES PAYABLE, CONTINUED:

         In August 1995, the Company initiated a private placement of its 6%
         Convertible Notes due October 1, 2000 (the "6% Notes"). Interest on the
         6% Notes is payable semi-annually and the notes are convertible into
         shares of the Company's Common Stock at $8.00 per share at any time
         prior to maturity upon the election of the holder. The 6% Notes are not
         collateralized. In January 1996, the Company offered each holder of the
         6% Notes the opportunity to exchange all or a portion of their 6% Notes
         for shares of the Company's Common Stock at the rate of $5.50 per share
         until February 9, 1996. Pursuant to this offer, the holders of
         $2,565,105 aggregate amount of principal and accrued interest on the 6%
         Notes elected to tender their 6% Notes to the Company in exchange for
         466,383 shares of common stock. This exchange conversion resulted in a
         non-cash debt conversion expense of $801,597.

         The Company has capital lease agreements with Aberlyn Capital
         Management Limited Partnership under which it has financed $1,000,000
         at 18% and $3,203,573 at 14.5%. The borrowings are collateralized by
         certain of the Company's equipment located in the U.K. Principal
         amounts mature through January 2000. During 1998, the $1,000,000 leases
         at 18% were repaid in full. Principal and interest payments on the
         remaining leases of $568,118 are due monthly. In connection with the
         agreement, the Company issued warrants in 1995 and 1994 to purchase a
         total of 102,514 shares of the Company's Common Stock at $5.00 per
         share. In June 1998, Aberlyn assigned the $3,203,573 leases at 14.5% to
         Phoenixcor Inc.

         In 1995, the Company obtained the proceeds of an $800,000 loan from
         Equitas, LP. The loan agreement provides for interest at an annual rate
         of 11.5% to be paid quarterly. Principal is due in full at maturity on
         July 24, 2000. However, the lender has elected to exercise its right to
         call the loan early and principal will be repaid in March 1999. The
         lender received warrants to purchase 22,198 shares of the Company's
         Common Stock at $8.00 per share. The loan is collateralized by accounts
         receivable, antisera inventory, and livestock from certain of the
         Company's subsidiaries as well as limited guarantees from those
         subsidiaries. The common shares of the Company's subsidiary, TAb U.K.,
         additionally collateralize this loan.

         In April 1996, an officer of the Company made a short-term unsecured
         loan to the Company of $1,000,000 bearing interest at 12% (the "12%
         Note"). In May 1996, the officer converted $750,000 principal amount of
         the 12% Note into an equal amount of the Company's 1996 notes bearing
         interest at 15% (the "15% Notes"). In November 1998, $500,000 of the
         15% Note was converted into 736,811 shares of the Company's Common
         Stock as a part of the capital refinancing. The $250,000 principal
         balance on the remaining 12% Note was paid in full with accrued
         interest in January 1999. The remaining $250,000 principal balance on
         the 15% Note is due in December 2000.



                                       33
<PAGE>   35

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS, CONTINUED


5.       NOTES PAYABLE, CONTINUED:

         In January 1995, financing of $465,900 was obtained from Bank of Wales
         PLC collateralized by certain real property in the U.K. The note is
         repayable over 10 years beginning in February 1995. Interest is paid at
         2.5% over the Bank of Wales's base lending rate (effective rate of
         8.75% at December 31, 1998).

         The Company's subsidiary, TAb Australasia Pty. Ltd., has two loan
         agreements with the South Australian Minister for Primary Industries
         (the "Minister"). The first agreement allowed TAb Australasia Pty. Ltd.
         to draw up to $2,000,000 Australian dollars ($1,224,600 U.S. dollars at
         December 31, 1998) to assist with construction and equipment of
         buildings at its Turretfield location in South Australia. The loan is
         to be repaid over ten years in equal annual installments through August
         2007. Interest is variable at the discretion of the Minister and is due
         annually. The interest rates at December 31, 1998 and 1997 were 9% and
         11% per annum. The loan is collateralized by a mortgage on the building
         and equipment purchased. The second agreement provided for a loan of
         $250,000 Australian dollars ($153,075 U.S. dollars at December 31,
         1998) for the construction of transportable buildings at the Company's
         Australian location. Principal and interest accrued thereon are to be
         repaid in semi-annual installments through April 2008. The interest
         rate at December 31, 1998 was 6.5% and is variable at the discretion of
         the Minister.

         The Company has available lines of credit at December 31, 1998 totaling
         150,000 British pounds sterling with the Bank of Scotland and its
         subsidiary, Bank of Wales PLC, in the U.K. Interest is paid at 2.5%
         over the relevant bank's base lending rate (effective rate of 8.75% at
         December 31, 1998). The Company also has available lines of credit at
         December 31, 1998 of 50,000 Australian dollars with the Westpac Bank.
         This line of credit bears interest at 1.75% above the bank's base
         lending rate (effective rate of 10.5% at December 31, 1998). These
         lines of credit are collateralized by the guarantee of the Company and
         are due on demand. At December 31, 1998, the Company had no outstanding
         borrowings on these lines of credit. The weighted average interest rate
         on these lines of credit outstanding at December 31, 1997 was 9%.



                                       34
<PAGE>   36


NOTES TO CONSOLIDATED FINANCIAL STATEMENTS, CONTINUED

5.       NOTES PAYABLE, CONTINUED:

         Aggregate maturities of fixed payments on notes payable for the next
         five years follow:



<TABLE>
<CAPTION>
                      YEARS ENDING
                      DECEMBER 31:
                      ------------
                      <S>                          <C>
                          1999                     $2,159,428
                          2000                      3,514,044
                          2001                        193,623
                          2002                        202,405
                          2003                        215,733
                       Thereafter                     618,411
                                                   ----------
                                                   $6,903,644
                                                   ==========
</TABLE>


         At December 31, 1998 and 1997, $1,700,250 and $1,868,967, respectively,
         of the Company's debt obligations were denominated in British pounds
         sterling or Australian dollars and were translated to U.S. dollars at
         year-end exchange rates. The Company is subject to foreign currency
         risk to the extent that exchange rates between the U.S. dollar and the
         foreign currencies change. For accounting purposes, changes in exchange
         rates for the debt obligations result in translation adjustments which
         are reported as part of the separate component of stockholders' equity.
         At December 31, 1998 and 1997, the amount included in the cumulative
         translation adjustment related to the Company's debt obligations was
         $320,484 and $242,956 of gain, respectively. The Company does not hedge
         its exposure to foreign currency risks.







                                       35
<PAGE>   37

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS, CONTINUED

6.       INCOME TAXES:

         Under SFAS No. 109, Accounting for Income Taxes, deferred income taxes
         are recognized for future tax consequences of differences between the
         tax bases of assets and liabilities and their financial reporting
         amounts based on enacted laws and statutory rates applicable in the
         periods in which the differences are expected to affect taxable income.
         Valuation allowances are established when necessary to reduce deferred
         tax assets to the amount expected to be realized. The Company
         determined that at December 31, 1998 and 1997 its ability to realize
         future benefits of deferred tax assets did not meet the "more likely
         than not" criteria in SFAS No. 109. The components of the net deferred
         tax liability recognized in the accompanying consolidated balance
         sheets are as follows:


<TABLE>
<CAPTION>
                                                                    DECEMBER 31,
                                                              1998                  1997
                                                          ------------          ------------
               <S>                                        <C>                   <C>
               Deferred tax assets                        $ 24,916,109          $ 19,214,452
               Deferred tax liabilities                       (275,477)             (643,339)
               Valuation allowance                         (24,916,109)          (18,845,146)
                                                          ------------          ------------

                                                          $   (275,477)         $   (274,033)
                                                          ============          ============
</TABLE>


         The deferred tax liability arose due to tax differences in the bases of
         assets and liabilities relative to the acquisition of Polyclonal
         Antibodies, Ltd. and the temporary difference in capital allowance in
         U.K. assets. The deferred tax asset arises primarily from the Company's
         net operating loss carryforwards.

         At December 31, 1998, the Company had available net operating loss
         carryforwards for U.S. federal tax purposes of approximately
         $57,700,000, which expire in various amounts through 2018 and
         approximately $307,000 of research and development tax credits which
         expire through 2013. As a result of the capital refinancing in 1998
         discussed in Note 1, the Company experienced an "ownership change"
         within the meaning of Section 382 of the Internal Revenue Code.
         Consequently, the Company is subject to an annual limitation on the
         amount of net operating loss carryforwards that can be used to offset
         taxable income. The annual limitation is $1,502,000 plus certain gains
         included in taxable income attributable to the Company prior to the
         ownership change.

         United Kingdom net operating loss carryforwards of $11,128,000 and
         Australian net operating loss carryforwards of $1,687,000 are available
         to offset future taxable income generated in those respective countries
         and may be carried forward indefinitely.

         The Company's effective tax rate varies from the federal statutory rate
         due to the recognition of a valuation allowance for financial reporting
         purposes.



                                       36
<PAGE>   38


NOTES TO CONSOLIDATED FINANCIAL STATEMENTS, CONTINUED

7.       STOCK WARRANTS AND STOCK OPTIONS:

         At December 31, 1998 there were warrants outstanding to purchase
         1,265,207 shares of the Company's Common Stock at prices ranging from
         $.68 to $8.00 (average price of $4.18) per share. All outstanding
         warrants expire from 1999 to 2003.

         Activity in stock warrants is as follows:


<TABLE>
<CAPTION>
                                                      NUMBER OF       EXERCISE PRICE
                                                      WARRANTS           PER SHARE
                                                    -------------------------------
<S>                                                 <C>               <C>
        Outstanding at December 31, 1995             2,303,135          $ .60-$8.00
           Granted                                     366,500          $      8.00
           Forfeited                                        --                   --
           Exercised                                  (942,897)         $ .75-$4.50


        Outstanding at December 31, 1996             1,726,738          $ .60-$8.00
           Granted                                       5,000          $      1.25
           Forfeited                                  (105,648)         $1.25-$3.50
           Exercised                                  (888,716)         $ .60-$3.50

        Outstanding at December 31, 1997               737,374          $2.50-$8.00
           Granted                                     707,500          $ .68-$2.49
           Forfeited                                  (159,167)         $2.50-$3.50
           Exercised                                   (20,500)         $      2.50

                                                   -----------
        Outstanding at December 31, 1998             1,265,207          $ .68-$8.00
                                                   ===========
</TABLE>


         On April 26, 1996, the Board of Directors of the Company amended the
         Therapeutic Antibodies Inc. 1990 Stock Incentive Plan (the "1990
         Plan"). Up to 1,650,000 shares of the Company's Common Stock may be
         subject to incentives under the 1990 Plan. The 1990 Plan provides for
         the grant to key employees, advisors, officers and directors of the
         Company of stock options complying with Section 422(a) of the Internal
         Revenue Code (qualified options) or options not qualifying under such
         provision (nonqualified options) as well as stock appreciation rights
         (SARs). The 1990 Plan provides for adjustment of the number of shares
         under the 1990 Plan in the event of stock splits, stock dividends and
         certain other events. The 1990 Plan also provides that if the Company
         shall not be the surviving corporation in a business combination, the
         holder of an outstanding option will be entitled to purchase stock in
         the surviving corporation on the same terms and conditions as the
         options. Options are nontransferable, and options and SARs are subject
         to any restrictions contained in the grant and applicable securities
         laws.




                                       37
<PAGE>   39


NOTES TO CONSOLIDATED FINANCIAL STATEMENTS, CONTINUED

7.       STOCK WARRANTS AND STOCK OPTIONS, CONTINUED:

         On April 27, 1997, shareholders of the Company voted in favor of
         adopting the Company's 1997 Stock Option Plan (the "1997 Plan"). The
         1997 Plan states that 1,100,000 shares of the Company's Common Stock
         will be reserved for issuance, at the discretion of the Company's
         Compensation Committee, to any director, employee, consultant or
         advisor of the Company or any of its subsidiaries. The 1997 Plan
         provides for adjustment of the number of shares available under the
         1997 Plan in the event of stock splits, stock dividends and certain
         other events.

         Between the 1990 Plan and the 1997 Plan, options to purchase 2,589,609
         shares of the Company's Common Stock were outstanding at December 31,
         1998 at prices ranging from $.90 to $8.18 (average price of $3.97).
         Options granted under both the 1990 and 1997 Plans have a contractual
         life of ten years. The average remaining contractual life of
         outstanding options under both plans at December 31, 1998 is
         approximately 7.4 years. Generally, the Company grants options with a
         graded vesting requirement, which typically vests ratably over one to
         five years. The options are issued at or above the fair value of the
         underlying stock at date of grant. At December 31, 1998, 1,611,259
         options were exercisable at a weighted average price of $4.09. All
         options expire from 1999 to 2008.

         The Company has granted its Chairman an option to purchase a number of
         shares of its common stock determined by dividing up to a maximum of
         10% of the increase in the Company's market capitalization between June
         8, 1998 and the date of exercise by the market price of the Company's
         common stock on the date of exercise. The Chairman will be entitled to
         exercise the option only if the increase in the market price of the
         Company's common stock between June 8, 1998 and the date of exercise,
         when compared to the increase in the share price of the companies
         constituting the FTSE Smallcap Index at the date of grant and exercise,
         ranks in the top quartile. The Chairman will receive nothing if the
         Company is in the median position, but options earned will increase on
         a straight-line basis between the median position and the position
         representing the 25th percentile. The award may be exercised in two
         tranches following the second and third years of employment, but if the
         Chairman exercises the award following the second anniversary, the
         terms of the calculation of any future award is reset. The exercise
         price of each grant is one pound, or approximately $1.61 at December
         31, 1998. The Company has not recognized any compensation expense in
         connection with this arrangement because it is not currently probable
         that any awards will be earned under the arrangement. Should it become
         likely that an award will be earned under this arrangement, the Company
         will record compensation expense over the three-year period of the
         arrangement in accordance with FASB Interpretation No. 28, "Accounting
         for Stock Appreciation Rights and Other Variable Stock Option or Award
         Plans."



                                       38
<PAGE>   40


NOTES TO CONSOLIDATED FINANCIAL STATEMENTS, CONTINUED

7.       STOCK WARRANTS AND STOCK OPTIONS, CONTINUED:


         Activity in stock options is as follows:


<TABLE>
<CAPTION>
                                                     NUMBER OF         EXERCISE PRICE        WEIGHTED
                                                      OPTIONS            PER SHARE         AVERAGE PRICE
                                                     ---------------------------------------------------
          <S>                                        <C>               <C>                 <C>
          Outstanding at December 31, 1995           1,108,626           $1.25-$6.00          $   3.10
                      Granted                          538,050           $6.00-$8.18          $   6.12
                     Forfeited                          (1,300)          $      6.00          $   6.00
                     Exercised                         (33,000)          $2.40-$3.00          $   2.49

          Outstanding at December 31, 1996           1,612,376           $1.25-$8.18          $   4.12
                      Granted                          504,450           $4.00-$6.00          $   5.49
                     Forfeited                         (84,438)          $3.00-$6.00          $   4.18
                     Exercised                              --                    --                --

          Outstanding at December 31, 1997           2,032,388           $1.25-$8.18          $   4.46
                      Granted                        1,042,670           $ .90-$3.37          $   2.71
                     Forfeited                        (287,949)          $2.40-$6.58          $   4.73
                     Exercised                        (197,500)          $      1.25          $   1.25
                                                     ---------
          Outstanding at December 31, 1998           2,589,609           $ .90-$8.18          $   3.97
                                                     =========
</TABLE>



         As permitted by SFAS No. 123, "Accounting for Stock Based
         Compensation", the Company follows the provisions of Accounting
         Principles Board Opinion 25 "Accounting For Stock Issued to Employees",
         and related interpretations in accounting for its stock option grants.
         Compensation expense for employees has not been recognized for options
         issued under the 1990 Plan and the 1997 Plan. Had compensation been
         determined based on the fair value of the awards at the grant date
         consistent with the provisions of SFAS No. 123, the Company's net loss
         and basic and diluted net loss per share would have been increased to
         the pro forma amounts that follow:



<TABLE>
<CAPTION>
                                                            1998              1997           1996
                                                        ------------     ------------    ------------
          <S>                                           <C>              <C>             <C>
          Net loss applicable to common shareholders
                 As reported                            $(15,921,805)    $(16,847,718)   $(12,746,117)
                 Pro forma                              $(16,572,715)    $(17,249,174)   $(12,922,164)

          Basic and diluted net loss per share
                 As reported                            $      (0.59)    $      (0.74)   $      (0.68)
                 Pro forma                              $      (0.62)    $      (0.75)   $      (0.69)
</TABLE>












                                       39
<PAGE>   41

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS, CONTINUED

7.       STOCK WARRANTS AND STOCK OPTIONS, CONTINUED:

         During 1998, 1997 and 1996, the Company granted options to
         non-employees to purchase 395,420, 290,650 and 107,550 shares,
         respectively, of the Company's Common Stock. The expense related to
         these grants recognized during 1998, 1997 and 1996 was approximately
         $160,000, $469,000 and $62,000 respectively.

         The weighted average fair value of options granted during 1998, 1997
         and 1996 was $1.55, $2.88 and $0.97, respectively.

         Fair value estimates were determined using a variation of the
         Black-Scholes model with the following weighted average assumptions for
         1998, 1997 and 1996:




<TABLE>
<CAPTION>
                                          1998         1997         1996
                                        ---------    ---------     -------
          <S>                           <C>          <C>           <C>
          Risk-free interest rate          6.0%         6.0%         6.0%
          Volatility factor                 55%          30%          25%
          Expected term of
            options (in years)              10           10            5
          Dividend yield                  none         none         none
</TABLE>


         The effects of applying SFAS No. 123 in this pro forma disclosure are
         not necessarily indicative of the future amounts. SFAS No. 123 does not
         apply to awards made prior to December 31, 1995, and the Company
         anticipates making awards in the future under its stock-based
         compensation plan.














                                       40
<PAGE>   42
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS, CONTINUED

8.       NET LOSS PER COMMON SHARE COMPUTATIONS:




<TABLE>
<CAPTION>
                                                      1998                 1997                1996
                                                   -----------        -------------       ------------
<S>                                               <C>                 <C>                 <C>
Net loss applicable to common shareholders
used for basic and diluted per share
computations (numerator)                          $(15,921,805)       $(16,847,718)       $(12,746,117)

Shares used for basic and diluted per share
computations (denominator)                          26,910,291           2,888,226          18,821,524

Basic and diluted net loss per amount share       $      (0.59)       $      (0.74)       $      (0.68)
</TABLE>





9.       COMMITMENTS:

         ROYALTY COMMITMENT: In 1992, the Company entered into a patent sale and
         royalty agreement with scientists who at the time worked at the
         University of Arizona. Under the agreement, the Company purchased the
         scientists' rights under their U.S. patent and certain U.S. patent
         applications. The Company agreed to pay royalties to the sellers with
         respect to products developed and sold under the patents. Currently, no
         royalty payments have yet been required under this agreement. LEASES:
         The Company leases laboratory and office space under operating leases.
         Aggregate rent expense incurred under these leases was approximately
         $694,915 in 1998, $475,209 in 1997 and $190,248 in 1996. Future minimum
         rental commitments under noncancelable operating leases as of December
         31, 1998 are as follows:



<TABLE>
<CAPTION>
                    YEARS ENDING
                    DECEMBER 31,
                    ------------
                    <S>                                   <C>
                       1999                               $  733,941
                       2000                                  696,087
                       2001                                  535,883
                       2002                                  519,836
                       2003                                  508,965
                                                          ----------
                                                          $2,994,712
                                                          ==========
</TABLE>












                                       41
<PAGE>   43

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS, CONTINUED

10.      RELATED PARTY TRANSACTIONS:

         The Company incurred interest expense and loan guarantee fees of
         $167,312, $142,500 and $115,241 in the years ended December 31, 1998,
         1997 and 1996, respectively, on notes payable to certain directors of
         the Company and loan guarantees made by certain directors on behalf of
         the Company in order to obtain short-term loan financing.
















                                       42
<PAGE>   44
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS, CONTINUED

11.  INTERNATIONAL OPERATIONS:

      The Company operates in one business segment and conducts its activities
      in the U.S., the U.K., Australia and before 1998, New Zealand.
      International operations are primarily located in the U.K. Intercompany
      sales between regions are made at cost plus markup. Summarized financial
      data by region are as follows:



<TABLE>
<CAPTION>
1998                            U.S.            INTERNATIONAL       ELIMINATIONS            NET
- ----                        ------------        ------------        ------------        ------------
<S>                         <C>                 <C>                 <C>                 <C>
Revenues:
   Trade                    $  3,292,859        $    338,950        $         --        $  3,631,809
   Intercompany (a)              908,323           9,747,363         (10,655,686)                 --
                            ------------        ------------        ------------        ------------
                            $  4,201,182        $ 10,086,313         (10,655,686)       $  3,631,809
                            ============        ============        ============        ============
R & D expense (a)           $ 11,512,863        $  9,268,170        $ (9,417,815)       $ 11,363,218
                            ============        ============        ============        ============
Foreign currency loss       $    240,703        $    157,652        $   (157,652)       $    240,703
                            ============        ============        ============        ============
Net loss                    $(13,386,190)       $ (2,490,904)       $     11,834        $(15,888,928)
                            ============        ============        ============        ============
Capital expenditures        $     33,126        $  1,351,901        $         --        $  1,385,027
                            ============        ============        ============        ============
Long lived assets           $  1,375,562        $ 10,483,745        $    (12,000)       $ 11,847,307
                            ============        ============        ============        ============




<CAPTION>


1997                            U.S.            INTERNATIONAL       ELIMINATIONS             NET
- ----                        ------------        -------------       ------------        ------------
<S>                         <C>                 <C>                 <C>                 <C>
Revenues:
   Trade                    $  2,255,334        $    422,597        $         --        $  2,677,931
   Intercompany (a)              779,507          10,912,302         (11,691,809)                 --
                            ------------        ------------        ------------        ------------
                            $  3,034,841        $ 11,334,899        $(11,691,809)       $  2,677,931
                            ============        ============        ============        ============
R & D expense (a)           $ 13,458,565        $  8,871,785        $(10,867,998)       $ 11,462,352
                            ============        ============        ============        ============
Foreign currency loss       $    913,119        $    696,969        $   (696,969)       $    913,119
                            ============        ============        ============        ============
Net loss                    $(15,763,860)       $ (1,819,741)       $    735,883        $(16,847,718)
                            ============        ============        ============        ============
Capital expenditures        $     54,712        $  1,202,736        $         --        $  1,257,448
                            ============        ============        ============        ============
Long lived assets           $  1,459,792        $ 10,766,992        $    (12,000)       $ 12,214,784
                            ============        ============        ============        ============
</TABLE>








                                       43
<PAGE>   45
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS, CONTINUED

11.      INTERNATIONAL OPERATIONS, CONTINUED:



<TABLE>
<CAPTION>
1996                              U.S.             INTERNATIONAL       ELIMINATIONS           NET
- ----                           ------------        -------------       ------------       ------------
<S>                            <C>                 <C>                 <C>                <C>
Revenues:
   Trade                       $  1,184,619        $    350,392        $        --        $  1,535,011
   Foreign currency gain          1,733,357                  --                 --           1,733,357
   Intercompany (a)               1,301,702           5,318,319         (6,620,021)                 --
                               ------------        ------------        -----------        ------------
                               $  4,219,678        $  5,668,711        $(6,620,021)       $  3,268,368
                               ============        ============        ===========        ============
R & D expense (a)              $  5,279,302        $  6,860,712        $(2,954,888)       $  9,185,126
                               ============        ============        ===========        ============
Net loss                       $ (5,468,662)       $ (5,223,305)       $(2,054,150)       $(12,746,117)
                               ============        ============        ===========        ============
Capital expenditures           $     99,035        $  3,194,179        $        --        $  3,293,214
                               ============        ============        ===========        ============
Long lived assets              $  1,528,257        $ 11,931,885        $   (12,000)       $ 13,448,142
                               ============        ============        ===========        ============
</TABLE>


         (a)      Intercompany revenues include interest income earned by the
                  U.S. parent company on loans made to international
                  subsidiaries and sales of products to, and the performance of
                  contract research and development for, the U.S. parent company
                  by international subsidiaries on a cost plus markup basis. The
                  intercompany account associated with this activity is
                  eliminated in consolidation.

12.      NONCASH INVESTING AND FINANCING ACTIVITIES:

         During 1998 and 1997 the Company purchased equipment in the amounts of
         $19,195 and $227,000, respectively, which was financed under capital
         lease agreements.

         On November 9, 1998 holders of $2,375,000 of the 15% Notes issued in
         1998 converted principal plus accrued interest of $107,000 into
         3,658,058 shares of the Company's Common Stock.

         On November 9, 1998, the Company converted $2,000,000 (all of the 100
         outstanding shares) of its Series A Convertible Redeemable Preferred
         Stock and $33,000 of accrued dividends into 2,995,692 shares of its
         Common Stock.

         On November 9, 1998 the Company also converted $500,000 principal of
         the 15% Note held by an officer of the Company into 736,811 shares of
         the Company's Common Stock.

         On February 9, 1996 the Company issued 466,383 shares of common stock
         in exchange for $2,500,000 of principal and $65,000 of accrued interest
         on the 6% Notes.

         In May 1996 an officer of the Company converted $750,000 principal of
         the 12% Note into an equal principal amount of the Company's 15% Notes.
         On October 21, 1996 the Company issued 150,000 shares of common stock
         in exchange for(pound)250,000 principal on two notes payable to the
         Welsh Development Agency.

13.      CARRYING AMOUNT AND FAIR VALUE OF FINANCIAL INSTRUMENTS:
         The carrying amount of cash and cash equivalents and short-term




                                       44
<PAGE>   46

         investments approximates fair value due to the short maturities of
         these instruments. The Company believes that it is not practicable to
         estimate the fair value of its long-term debt because these instruments
         were generally issued in a convertible form or in conjunction with
         warrants to purchase the Company's Common Stock. The Company would be
         required to obtain an independent valuation of each specific
         instrument.


















                                       45
<PAGE>   47
                                     PART IV

ITEM 14.   EXHIBITS, FINANCIAL STATEMENT SCHEDULES, AND REPORTS ON FORM 8-K

This Item has been amended for the sole purpose of listing the following amended
exhibits to the Original Filing:

<TABLE>
<CAPTION>
EXHIBIT
NUMBER                           DESCRIPTION OF EXHIBITS
- -------                          -----------------------
<S>                 <C>
27.1                - Restated Financial Data Schedule (SEC use only)
</TABLE>





                                       46
<PAGE>   48

                                  SIGNATURES

                  Pursuant to the requirements of Section 13 or 15(d) of the
Securities Exchange Act of 1934, the Registrant has duly caused this report to
be signed on its behalf by the undersigned, thereunto duly authorized.

                                   THERAPEUTIC ANTIBODIES INC.

Date:  August 13, 1999             By:     /s/ Andrew John Heath, M.D., Ph.D.
                                       ---------------------------------------
                                        Andrew John Heath, M.D., Ph.D.
                                        Chief Executive Officer (Interim
                                        Principal Financial and Accounting
                                        Officer)



                  Pursuant to the requirements of the Securities Exchange Act of
1934, this report has been signed below by the following persons on behalf of
the Registrant and in the capacities and on the dates indicated.

<TABLE>
<CAPTION>
                     NAME                                            TITLE                               DATE
                     ----                                            -----                               ----
<S>                                               <C>                                               <C>
/s/ Andrew John Heath, M.D., Ph.D.*                                                                 August 13, 1999
- -----------------------------------------------
Stuart Michael Wallis                             Chairman of the Board


/s/ Andrew John Heath, M.D., Ph.D.                Chief Executive Officer, Vice Chairman of         August 13, 1999
- -----------------------------------------------   The Board
Andrew John Heath, M.D., Ph.D.



/s/ Andrew John Heath, M.D., Ph.D.*                                                                 August 13, 1999
- -----------------------------------------------
Martin Shallenberger Brown                        Secretary and Director


/s/ Andrew John Heath, M.D., Ph.D.*               Senior Vice President-Research and                August 13, 1999
- -----------------------------------------------   Development Administration and Director
Timothy Chard, M.D.
</TABLE>


*Executed by Andrew John Heath, M.D., Ph.D.
in his capacity as attorney-in-fact pursuant to
Power of Attorney on file with the Securities
and Exchange Commission.





                                       47

<TABLE> <S> <C>

<ARTICLE> 5
<RESTATED>

<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               DEC-31-1998
<CASH>                                       8,179,496
<SECURITIES>                                         0
<RECEIVABLES>                                   67,677
<ALLOWANCES>                                         0
<INVENTORY>                                    287,802
<CURRENT-ASSETS>                             9,574,194
<PP&E>                                      17,707,468
<DEPRECIATION>                               6,632,702
<TOTAL-ASSETS>                              21,421,502
<CURRENT-LIABILITIES>                        4,037,012
<BONDS>                                      4,744,216
                                0
                                          0
<COMMON>                                        52,057
<OTHER-SE>                                  11,970,377
<TOTAL-LIABILITY-AND-EQUITY>                21,421,502
<SALES>                                        529,754
<TOTAL-REVENUES>                             3,392,447
<CGS>                                          374,371
<TOTAL-COSTS>                               17,974,485
<OTHER-EXPENSES>                               240,703
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                           1,305,549
<INCOME-PRETAX>                            (15,888,928)
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                        (15,888,928)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                               (15,888,928)
<EPS-BASIC>                                       (.59)
<EPS-DILUTED>                                     (.59)


</TABLE>


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