ENDOREX CORP
10KSB/A, 1998-08-04
PHARMACEUTICAL PREPARATIONS
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<PAGE>   1
 
   
     AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON AUGUST 4, 1998
    
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
                       SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D. C. 20549
                           -------------------------
 
   
                                AMENDMENT NO. 3
    
                                       TO
 
                                  FORM 10-KSB
 
(MARK ONE)
 
[X]                 ANNUAL REPORT UNDER SECTION 13 OR 15(D)
                     OF THE SECURITIES EXCHANGE ACT OF 1934
 
FOR THE FISCAL YEAR ENDED DECEMBER 31, 1997
 
[ ]               TRANSITION REPORT UNDER SECTION 13 OR 15(D)
                     OF THE SECURITIES EXCHANGE ACT OF 1934
 
FOR THE TRANSITION PERIOD FROM
- ------------------- TO
- -------------------
 
COMMISSION FILE NUMBER: 0-11572
 
                                 ENDOREX CORP.
                 (Name of small business issuer in its charter)
 
<TABLE>
<S>                                                <C>
                  DELAWARE                                          41-1505029
      (State or other jurisdiction of                            (I.R.S. Employer
       incorporation or organization)                          Identification No.)
           900 NORTH SHORE DRIVE
            LAKE BLUFF, ILLINOIS                                      60044
  (Address of principal executive offices)                          (Zip Code)
</TABLE>
 
Issuer's telephone number, including area code: 847-604-7555
 
Securities registered under Section 12(b) of the Exchange Act:
 
<TABLE>
<S>                                                         <C>
                                                                          NAME OF EACH EXCHANGE ON
                 TITLE OF EACH CLASS                                          WHICH REGISTERED
- -----------------------------------------------------       -----------------------------------------------------
                        None                                                        None
</TABLE>
 
Securities registered under Section 12(g) of the Exchange Act:
                    COMMON STOCK, PAR VALUE $.001 PER SHARE
                                (Title of class)
 
     Check whether the issuer (1) filed all reports required to be filed by
Section 13 or 15(d) of the Exchange Act during the past 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  [ ]
 
     Check if there is no disclosure of delinquent filers in response to Item
405 of Regulation S-B is not contained in this form, and no disclosure will be
contained, to the best of registrant's knowledge, in definitive proxy or
information statements incorporated by reference in Part III of this Form 10-KSB
or any amendment to this Form 10-KSB.  [ ]
 
     Revenues for its most recent fiscal year were: $-0-.
 
     The aggregate market value of the voting stock held by non-affiliates
computed by reference to the average bid and asked prices of such stock, as of
February 27, 1998 was $49,400,000. Non-affiliates have been determined on the
basis of holdings set forth under Item 11 of this Annual Report on Form 10-KSB.
 
     As of February 27, 1998 the issuer had 9,962,666 shares of Common Stock
outstanding.
 
                         DOCUMENTS INCORPORATED BY REFERENCE
 
     The definitive proxy statement of Endorex Corp. in connection with the
annual meeting to be held on or about May 13, 1998 is incorporated by reference
into Part III of this Form 10-KSB.
 
     Transitional Small Business Issuer:  Yes  [ ]     No  [X]
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>   2
 
   
ITEM 13. EXHIBITS AND REPORTS ON FORM 8-K.
    
 
     (a) The following financial statements are filed as part of this report:
 
<TABLE>
        <S>      <C>
        Financial Statements.
        (1)      Balance Sheet as of December 31, 1997.
        (2)      Statements of Operations for the periods ended December 31,
                 1997 and 1996 and cumulative from February 15, 1985 (date of
                 inception) to December 31, 1997.
        (3)      Statements of Cash Flows for the periods ended December 31,
                 1997 and 1996 and cumulative from February 15, 1985 (date of
                 inception) to December 31, 1997.
        (4)      Statements of Stockholders' Equity for the period from
                 February 15, 1985 (date of inception) to December 31, 1997.
        (5)      Notes to Financial Statements.
        (6)      Independent Accountants' Report.
</TABLE>
 
     (b) Reports on Form 8-K
 
     During the fiscal quarter ended December 31, 1997 the Company did not file
any Current Reports on Form 8-K.
 
     (c) Exhibits:
 
<TABLE>
        <S>         <C>
         3.1        Certificate of Incorporation of Company.(1)
         3.2        Certificate of Ownership and Merger filed March 30, 1987.(1)
         3.3        Certificate of Amendment to Certificate of Incorporation
                    filed September 7, 1989.(2)
         3.4        Certificate of Amendment to Certificate of Incorporation
                    filed November 13, 1990.(3)
         3.5        Certificate of Amendment to Certificate of Incorporation
                    filed May 29, 1991.(3)
         3.6        Certificate of Amendment to Certificate of Incorporation
                    filed February 27, 1992.(3)
         3.7        Certificate of Amendment to Certificate of Incorporation
                    filed February 27, 1992.(3)
         3.8        Certificate of Amendment to Certificate of Incorporation
                    filed June 29, 1993.(7)
         3.9        Certificate of Amendment to Certificate of Incorporation
                    filed April 15, 1996.(7)
         3.10       Certificate of Amendment to Certificate of Incorporation
                    filed June 10, 1997.(9)
         3.11       Series B Preferred Certificate of Designations, Preferences
                    and Rights filed January 21, 1998.(9)
         3.12       By-laws of Company.(1)
         4.1        Specimen Common Stock Certificate.(1)
         4.2        Warrant for the Purchase of 864,865 shares of Common
                    Stock.(8)
         4.3        Warrant for the Purchase of 1,297,297 shares of Common
                    Stock.(8)
         4.4        Warrant for the Purchase of 230,770 shares of Common
                    Stock.(9)
        10.1        Patent License Agreement dated December 16, 1996 between the
                    Company and Massachusetts Institute of Technology.(7)
        10.2        Consultation Agreement dated as of September 1, 1996 between
                    the Company and Kenneth Tempero, Ph.D., M.D.(7)
        10.3        Employment Agreement dated July 25, 1996 between the Company
                    and Michael S. Rosen.(5)
        10.4        Employment Agreement dated December 1, 1996 between the
                    Company and Robert N. Brey.(7)
        10.5        Purchase Agreement dated March 1, 1996 between the Company
                    and Dominion Resources, Inc.(4)
        10.6        Purchase Agreement dated as of June 13, 1996 between the
                    Company, Dominion Resources, Inc., The Aries Fund and The
                    Aries Domestic Fund, L.P.(7)
        10.7        Purchase Agreement dated as of June 26, 1996 between the
                    Company, The Aries Fund and The Aries Domestic Fund, L.P.(7)
        10.8        Incentive Stock Option Plan.(1)
</TABLE>
 
                                       16
<PAGE>   3
   
<TABLE>
        <S>         <C>
        10.9        Lease dated April 28, 1993 between the Company and Landmark
                    Investors.(7)
        10.10       Office Lease dated September 18, 1996 between the Company
                    and American National Bank & Trust Company of Chicago, as
                    amended.(7)
        10.11       Placement Agency Agreement between the Company and Paramount
                    Capital, Inc. dated July 1, 1997.(8)
        10.12       Side Letter #1 to Placement Agency Agreement.(8)
        10.13       Form of Subscription Agreement for the purchase of Common
                    Stock.(8)
        10.14       Financial Advisory Agreement between the Company and
                    Paramount Capital, Inc. dated October 16, 1997.(8)
        10.15       Lease dated December 19, 1997 between the Company and Howard
                    M. Ruskin.(9)
        10.16+      Joint Development and Operating Agreement, dated as of
                    January 21, 1998, between the Company, Elan Corporation,
                    plc, Orasomal Technologies, Inc. and Endorex Vaccine
                    Delivery Technologies, Inc.
        10.17       Securities Purchase Agreement, dated as of January 21, 1998,
                    between the Company and Elan International Services,
                    Ltd.(10)
        10.18       Registration Rights Agreement, dated as of January 21, 1998,
                    between the Company and Elan International Services, Ltd.(9)
        10.19+*     License Agreement, dated as of January 21, 1998, between the
                    Elan Pharmaceuticals, plc and Endorex Vaccine Delivery
                    Technologies, Inc.
        10.20+*     License Agreement, dated as of January 22, 1998, between
                    Orasomal Technologies, Inc., Endorex Vaccine Delivery
                    Technologies, Inc. and the Company.
        16          Letter on change in certifying accountants.(6)
        21          Subsidiaries of the Company.(9)
        23.1        Consent of PricewaterhouseCoopers LLP, independent certified
                    public accountants.(10)
        27          Financial Data Schedule(9)
</TABLE>
    
 
- -------------------------
  +  The Company has applied for Confidential Treatment of portions of this
     exhibit pursuant to Rule 24b-2 under the Securities Act of 1934, as
     amended.
 
   
  *  Re-filed herewith pursuant to the Company's request for Confidential
     Treatment.
    
 
   
 (1) Incorporated by reference to the Company's Registration Statement on Form
     S-1 (File No. 33-13492).
    
 
 (2) Incorporated by reference to the Company's Annual Report on Form 10-K for
     the fiscal year ended January 31, 1989.
 
 (3) Incorporated by reference to the Company's Annual Report on Form 10-K for
     the fiscal year ended January 31, 1992.
 
 (4) Incorporated by reference to the Company's Annual Report on Form 10-KSB for
     the fiscal year ended January 31, 1996.
 
 (5) Incorporated by reference to the Company's Quarterly Report on Form 10-QSB
     for the fiscal quarter ended July 31, 1996.
 
 (6) Incorporated by reference to the Company's Report on Form 8-K/A dated
     February 10, 1997.
 
 (7) Incorporated by reference to the Company's Annual Report on Form 10-KSB, as
     amended, for the transition period ended December 31, 1996.
 
 (8) Incorporated by reference to the Company's Quarterly Report on Form 10-QSB,
     as amended, for the fiscal quarter ended September 30, 1997.
 
   
 (9) Previously filed with the Company's Annual Report on Form 10-KSB for the
     year ended December 31, 1997 filed on March 27, 1998.
    
 
   
(10) Previously filed with Amendment No. 2 to the Company's Annual Report on
     Form 10-KSB for the year ended December 31, 1997 filed on July 30, 1998.
    
 
                                       17
<PAGE>   4
 
                                   SIGNATURES
 
   
     Pursuant to the requirements of Section 13 or 15(d) of the Securities Act
of 1934, the Registrant has duly caused this Report to be signed on its behalf
by the undersigned, thereunto duly authorized, in the Village of Lake Bluff,
State of Illinois, on August 4, 1998.
    
 
                                          ENDOREX CORP.
 
                                          By:     /s/ MICHAEL S. ROSEN
 
                                            ------------------------------------
                                                      Michael S. Rosen
                                               President and Chief Executive
                                                    Officer, and Director
 
   
     Pursuant to the requirements of Section 13 or 15(d) of the Securities Act
of 1934, the Registrant has duly caused this Report to be signed on its behalf
by the undersigned, thereunto duly authorized, in the Village of Lake Bluff,
State of Illinois, on August 4, 1998.
    
 
<TABLE>
<S>  <C>                                            <C>
 
By:             /s/ MICHAEL S. ROSEN                President, Chief Executive Officer, and
     -------------------------------------------    Director
                  Michael S. Rosen
 
By:           /s/ DAVID G. FRANCKOWIAK              Vice President, Finance and Administration
     -------------------------------------------    (Principal Financial and Accounting
                David G. Franckowiak                Officer)
 
By:                       *                         Director
     -------------------------------------------
                   Richard Dunning
 
By:                                                 Director
     -------------------------------------------
                   Steve H. Kanzer
 
By:                       *                         Director
     -------------------------------------------
                    Paul D. Rubin
 
By:                       *                         Director
     -------------------------------------------
                  H. Laurence Shaw
 
By:                       *                         Director
     -------------------------------------------
                    Andrew Stein
 
By:                       *                         Director
     -------------------------------------------
                   Steve Thornton
 
By:                       *                         Director
     -------------------------------------------
                   Kenneth Tempero
 
*By:          /s/ DAVID G. FRANCKOWIAK
     -------------------------------------------
                David G. Franckowiak
                  Attorney-in-fact
</TABLE>

<PAGE>   1
                                                                       EX. 10.19
                                      CONFIDENTIAL TREATMENT HAS BEEN SOUGHT FOR
                                 PORTIONS OF THIS EXHIBIT PURSUANT TO RULE 24B-2
                           UNDER THE SECURITIES EXCHANGE AC TO 1934, AS AMENDED.





THIS AGREEMENT is made the 22nd day of January 1998




BY AND BETWEEN



ELAN CORPORATION, PLC

An Irish company, of Lincoln House, Lincoln Place, Dublin 2, Ireland


AND



ENDOREX VACCINE DELIVERY TECHNOLOGIES, INC.

A Delaware corporation of 900 North Shore Drive, Lake Buff, Illinois 60044,
United States of America






                               LICENSE AGREEMENT







                                      1


<PAGE>   2

                               TABLE OF CONTENTS



<TABLE>
<CAPTION>

CLAUSE NO.  CLAUSE                                        PAGE NO.
   <S>      <C>                                           <C>

    1       Definitions

    2       Grant of Rights

    3       Improvements

    4       Intellectual Property Rights

    5       Exploitation of Licensed Technology

    6       Financial Provisions

    7       Right of Audit and Inspection

    8       Patents

    9       Confidential Information

    10      Trademarks

    11      Term and Termination

    12      Warranties/Indemnities

    13      Insurance

    14      Impossibility of Performance - Force Majeure

    15      Settlement of Disputes; Proper Law

    16      Assignment

    17      Notices

    18      Miscellaneous Clauses

</TABLE>




                                      2


<PAGE>   3


WHEREAS

A.   Elan is knowledgeable in the discovery, research, development,
     manufacture and marketing of pharmaceutical formulations capable of
     delivering drugs, including oral or mucosal Vaccine delivery.  Elan owns
     or has licensed the Elan Technology.  Elan also owns and uses certain
     trademarks in connection with the manufacture, marketing and sale of such
     compounds, including the Elan Trademarks.

B.   Orasomal has proprietary know-how and expertise relating, inter alia, to
     immunology and is knowledgeable in the discovery, research, development,
     manufacture and marketing of pharmaceutical formulations capable of
     delivering drugs, including oral or mucosal Vaccine delivery.  Orasomal
     owns or has licensed the Orasomal Technology.  Orasomal also owns and uses
     certain trademarks in connection with the manufacture, marketing and sale
     of such compounds, including the Orasomal Trademarks.

   
C.   Elan and Endorex have agreed to co-operate in the establishment and
     management of the Company, the business of which will be to research and
     develop certain Products incorporating the technologies developed and/or
     to be developed by Elan and Orasomal and to commercialize such Products
     throughout the world.
    

D.   Simultaneously herewith, Elan, Endorex and Orasomal are entering into the
     Development Agreement for the purpose of recording the terms and
     conditions of the joint venture and of regulating their relationship with
     each other and certain aspects of the affairs of and their dealings with
     the Company.

E.   Under the Development Agreement, the Company shall own all rights in
     technology  developed pursuant to certain Research and Development
     Programs being conducted or to be conducted by the Company or by Orasomal,
     Elan or an Independent Third Party on behalf of the Company, including the
     Company Program Technology, the Orasomal Program Technology and the Elan
     Program Technology.

F.   The Company desires to enter into this Agreement with Elan so as to (a)
     permit the Company to utilize the Elan Patents, the Elan Know-How and the
     Elan Trademarks in the research, development, manufacture, distribution
     and sale of the Products in the Field and (b) to permit Elan to utilise
     the Orasomal Program Technology, the Elan Program Technology and the
     Company Program Technology in connection with (i) Elan's research and
     development work on behalf of the Company and (ii) Elan's manufacturing
     and supplying the Company or its designee(s) with the Products and other
     components.

G.   Simultaneously herewith, the Company and Orasomal are entering into a
     similar license agreement relating to the Company's use of the Orasomal
     Patents, the Orasomal Know-

   
    



                                      3


<PAGE>   4


     How and the Orasomal Trademarks and Orasomal's use of the Elan Program
     Technology, the Orasomal Program Technology and the Company Program
     Technology.


NOW IT IS HEREBY AGREED AS FOLLOWS:

1.   DEFINITIONS

1.1. In this present Agreement, including the Recitals, Schedules and
     Appendices, the following definitions shall prevail unless the context
     otherwise requires:

"ACQUIRED"         means a transfer or license of a Patent, Know-How or other
                   forms of Intellectual Property Rights or information from an
                   Independent Third Party to Elan or Orasomal, as the case may
                   be, to the extent to which there are no obligations or
                   restrictions  (such as confidentiality) in respect of that
                   information which prohibit disclosure to or use by the
                   Company;

"AFFILIATE"        means any corporation or entity other than the Company
                   controlling, controlled or under the common control of Elan,
                   Orasomal or the Company as the case may be.  For the purpose
                   of this definition, subject to the provisions of Clause
                   11.4. "control" shall mean direct or indirect ownership of
                   fifty percent (50%) or more of the stock or shares entitled
                   to vote for the election of directors;

"AGREEMENT"        means this agreement (which expression shall be deemed to
                   include the Recitals, the Schedules and Appendices hereto);

"BUSINESS PLAN"    means a plan for the business of the Company to be
                   reasonably agreed to by Elan, Orasomal, Endorex and the
                   Company prior to signing this Agreement or as soon
                   thereafter as is practicable and in any event within thirty
                   (30) days of signing this Agreement;

"CLOSING DATE"     means January 22, 1998;

"COMPANY"          means Endorex Vaccine Delivery Technologies, Inc.; ;

"COMPANY PROGRAM
PATENTS"           means the inventions and underlying Patents that constitute
                   the Company Program Technology;




                                      4


<PAGE>   5


"COMPANY PROGRAM
TECHNOLOGY"        shall have the meaning assigned to it in the Development
                   Agreement;

"COMPANY SUBSCRIPTION
AGREEMENT"         means the Subscription and Stockholders' Agreement of
                   Endorex Vaccine Delivery Technologies, Inc., made by and
                   between EIS, Endorex and the Company as of the date hereof;

"DEVELOPMENT
AGREEMENT"         means the Joint Development & Operating Agreement of even
                   date entered into between Orasomal, Elan, EIS, Endorex and
                   the Company;

"EFFECTIVE DATE"   means December 31, 1997;

"EIS"              means Elan International Services Ltd.;

"ELAN"             means Elan Corporation, plc (Elan will be acting through its
                   division Elan Pharmaceutical Technologies);

"ELAN EXCLUDED
TECHNOLOGY"        has the meaning set forth in Schedule 1;


"ELAN KNOW-HOW"    means Elan's drug delivery Know-How (including oral or
                   mucosal Vaccine delivery Know-How) and Know-How relating to
                   oral or mucosal Vaccines, other than the Elan Program
                   Know-How  and the Elan Excluded Technology;


"ELAN PATENTS"     means Elan's drug delivery inventions and underlying Patents
                   (including oral or mucosal Vaccine delivery inventions) and
                   inventions and underlying Patents relating to oral or
                   mucosal Vaccines, other than the Elan Program Patents and
                   the Elan Excluded Technology;

"ELAN PROGRAM
PATENTS"           means the inventions and underlying Patents that constitute
                   Elan Program Technology;

"ELAN PROGRAM
TECHNOLOGY"        has the meaning assigned to it in the Development Agreement;

"ELAN TECHNOLOGY"  means the Elan Patents and/or the Elan Know-How (which
                   exclude the Elan Excluded Technology).  The primary examples
                   of the Elan




                                      5


<PAGE>   6


   
                   Technology existing as of the Effective Date are set forth
                   on Schedule 1; for the avoidance of doubt the Parties
                   confirm that the said list is not necessarily exhaustive.
                   The Elan Technology also includes the inventions and know
                   how that are the subject of the Maynooth Agreement or any
                   agreement with Maynooth University Enterprise Development
                   Limited envisaged by the Maynooth Agreement. For the
                   avoidance of doubt, Elan Technology shall exclude Patents
                   and Know How [****] or [****], including, but not limited
                   to, [****]. 
    

"ELAN TRADEMARKS"  means, depending on the context, one or more of the
                   trademarks owned by, Acquired by, assigned or licensed to
                   Elan which are relevant to the Elan Technology or the
                   Products;

"ENDOREX"          means Endorex Corp.;

"FDA"              means the United States Food and Drug Administration or
                   any successors or agency the approval of which is necessary
                   to market a product in the United States of America or any
                   other relevant regulatory authority the approval of which is
                   necessary to market a product in any other country of the
                   Territory;

"FIELD"            shall mean the [****];

"FIRST RIGHT OF
NEGOTIATION"       shall have the meaning assigned to such term in Clause 9.5.
                   of the Development Agreement;

"IMPROVEMENTS"     means inventions, discoveries and developments relating
                   to (A) the Elan Technology that can usefully be applied to
                   the Field, and (B) which were first reduced to practice
                   during the Term by Elan [but shall for the avoidance of
                   doubt exclude Program Technology and the Elan Excluded
                   Technology;

"INDEPENDENT
THIRD PARTY"       means any person other than the Company, Elan, Endorex,
                   Orasomal or any of their respective Affiliates;

"IN-MARKET"        means [****] (or where applicable by [****]) to an [****] 
                   such as a

**** REPRESENTS MATERIAL REACTED PURSUANT TO A REQUEST
FOR CONFIDENTIAL TREATMENT PURSUANT TO RULE 24b-2 UNDER
THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED.







                                      6


<PAGE>   7

                   [****], and shall exclude [****];

"INTELLECTUAL
PROPERTY RIGHTS"   means proprietary rights in Patents, Know-How, registered 
                   and unregistered designs, copyrights, trademarks, trade      
                   dress, and other like legal rights for the protection of
                   intellectual property but shall for the avoidance of doubt
                   exclude the Elan Excluded Technology;

"KNOW-HOW"         means all trade secrets, confidential scientific, technical  
                   and medical information and expertise, technical data and
                   marketing information, studies and data from time to time
                   developed, produced by or on behalf of Elan, Orasomal or the
                   Company, as the case may be, whether before the Effective
                   Date or during the Term including, but not limited to,
                   unpatented inventions, discoveries, theories, plans, ideas
                   (whether or not reduced to practice) relating to the
                   research and development, manufacture, registration for
                   marketing, use or sale of the Product, toxicological,
                   pharmacological, analytical and clinical data,
                   bioavailability studies, product forms and formulations,
                   control assays and specifications, methods of preparation
                   and stability data;

"LISTED COMPANY"   means the companies set forth in Schedule 2 and their 
                   respective controlled (as such term is used in the 
                   definition of Affiliates above) subsidiaries;

"MAJOR COUNTRY"    means those countries of the Territory set forth in 
                   Schedule 3;

"MANAGEMENT
COMMITTEE"         means the management committee appointed by the directors of
                   the Company pursuant to the Development Agreement;
   
"MAYNOOTH          means that certain Proposal Concerning the Exploitation of 
AGREEMENT"         Intellectual Property Rights by and between Elan and
                   Maynooth  University Enterprise Development Limited dated
                   March 25, 1996, a copy of which is attached as Schedule 4;
    

"MIT"              means the Massachusetts Institute of Technology;

"MIT AGREEMENT"    means that certain Patent License Agreement by and
                   between Orasomal and the Massachusetts Institute of
                   Technology dated December 16, 1996 a copy of which is
                   attached to Schedule 3 of the Orasomal License Agreement;

**** REPRESENTS MATERIAL REACTED PURSUANT TO A REQUEST
FOR CONFIDENTIAL TREATMENT PURSUANT TO RULE 24b-2 UNDER
THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED.






                                      7


<PAGE>   8


"MIT PATENTS"        means the Patents licensed by the Massachusetts Institute
                     of Technology pursuant to the MIT Agreement;

"MIT PATENTED
PRODUCT"             means any product or part thereof which: (a) is covered in
                     whole or in part by an issued, unexpired claim in the MIT
                     Patents in the country in which any such product or part
                     thereof is made, used or sold; or (b) is manufactured by
                     using a process or is employed to practice a process which
                     is covered in whole or in part by an issued, unexpired
                     claim in the MIT Patents in the country in which any MIT
                     Patented Process is used or in which such product or part
                     thereof is used or sold;

"MIT PATENTED
PROCESS"             means any process which is covered in whole or in part by
                     an issued, unexpired claim or a pending claim contained in
                     the MIT Patents;

"NET SALES"          means [****];

"ORASOMAL"           means Orasomal Technologies, Inc.;

"ORASOMAL
KNOW-HOW"            means Orasomal's drug delivery Know-How (including oral or
                     mucosal Vaccine delivery Know-How) and Know-How relating
                     to oral or mucosal Vaccines, other than Orasomal Program
                     Know-How;

"ORASOMAL LICENSE
AGREEMENT"           means the license agreement of even date herewith entered
                     into between the Company and Orasomal;

"ORASOMAL PATENTS"   means Orasomal's drug delivery inventions and underlying
                     Patents (including oral or mucosal Vaccine delivery
                     inventions) and inventions and underlying Patents relating
                     to oral or mucosal Vaccines, other than Orasomal Program
                     Technology. The Orasomal Patents include the MIT Patents
                     and are listed on Schedule 1 of the Orasomal License
                     Agreement;


   
**** REPRESENTS MATERIAL REACTED PURSUANT TO A REQUEST
FOR CONFIDENTIAL TREATMENT PURSUANT TO RULE 24b-2 UNDER
THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED.
    




                                      8


<PAGE>   9


"ORASOMAL PROGRAM
PATENTS"             means the inventions and the underlying Patents that
                     constitute Orasomal Program Technology;

"ORASOMAL PROGRAM
TECHNOLOGY"          shall have the meaning assigned to it in the Development
                     Agreement;

"ORASOMAL
TECHNOLOGY"          means the [****] and/or the [****].  The Orasomal
                     Technology also includes [****].  For the avoidance of
                     doubt, Orasomal Technology shall exclude [****], including
                     [****];

"ORASOMAL
TRADEMARKS"          means, depending on the context, one or more of the
                     trademarks and any other relevant trademark owned by,
                     Acquired by, assigned or licensed to Orasomal which are
                     relevant to the Orasomal Technology or the Products;

"PARTIES"            means Elan and the Company;

"PATENTS"            means all and any patents and any applications therefor in
                     the Territory (including any and all divisions,
                     continuations, continuations-in-part, extensions,
                     additions or reissues thereto or thereof);

"PERSON"             means an individual, partnership, corporation, limited
                     liability company, business trust, joint stock company,
                     trust, unincorporated association, joint venture, or other
                     entity of whatever nature;

"PLA"                means the Product License Approval, or its equivalent, as
                     such term is understood by the FDA;

"PRE-EXISTING THIRD
PARTY TECHNOLOGY"    has the meaning set forth in Clause 2.3;

"PRODUCT"            means any [****];

**** REPRESENTS MATERIAL REACTED PURSUANT TO A REQUEST
FOR CONFIDENTIAL TREATMENT PURSUANT TO RULE 24b-2 UNDER
THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED.






                                      9


<PAGE>   10

"PROGRAM
TECHNOLOGY"        has the meaning assigned to it in the Development Agreement;

"RELEVANT EVENT"   has the meaning set forth in Clause 11.3.1;

"RESEARCH AND
DEVELOPMENT
PROGRAM"           means depending on the context, one or more programs of
                   research and development work being conducted or to be
                   conducted by, inter alia, Orasomal and Elan for and on
                   behalf of the Company which have been devised by the
                   Research Committee and approved by the Management Committee;

"TECHNOLOGIES"     means collectively, the Orasomal Technology together with
                   the Elan Technology;

"TERM"             has the meaning set forth in Clause 11.1;

   
"TERRITORY"        means the world;
    

"THIRD PARTY
TECHNOLOGY"        has the meaning set forth in Clause 9.5. of the Development
                   Agreement;

"VACCINES"         means a biologically or synthetically derived substance
                   administered to [****]; and
"UNITED STATES
DOLLAR" AND "US$"  means the lawful currency for the time being of the United
                   States of America.


1.2. Words importing the singular shall include the plural and vice versa.

1.3. Unless the context otherwise requires, reference to a recital, article,
     paragraph, provision, clause or schedule is to a recital, article,
     paragraph, provision, clause or schedule of or to this Agreement.

1.4. Reference to a statute or statutory provision includes a reference to it
     as from time to time amended, extended or re-enacted.

1.5. The headings in this Agreement are inserted for convenience only and do
     not affect its construction.

**** REPRESENTS MATERIAL REACTED PURSUANT TO A REQUEST
FOR CONFIDENTIAL TREATMENT PURSUANT TO RULE 24b-2 UNDER
THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED.





                                     10




<PAGE>   11


1.6. Unless the context or subject otherwise requires, references to words in
     one gender include references to the other genders.

1.7. References to "include" or "including" shall be construed as examples
     only, and in no way be read as limiting.


2.   GRANT OF RIGHTS

2.1. Subject to the terms of this Agreement, under all of Elan's existing and
     future Patents and other Intellectual Property Rights covering the Elan
     Technology, Elan hereby grants to the Company for the Term an exclusive
     licence to the Elan Technology in the Field for all research, development,
     and commercial purposes in the Field.  All proprietary rights and rights
     of ownership with respect to the Elan Technology shall at all times remain
     solely with Elan, or where applicable with Elan's licensor.  The Company
     shall not have any rights to use the Elan Technology other than insofar as
     they relate directly to the Field and are expressly granted herein.

   
2.2. Subject to any restriction in any licenses or other agreements pursuant to
     which Elan licenses any of the Elan Trademarks, Elan hereby grants the
     Company for the Term of this Agreement a non-exclusive, royalty-free, fully
     paid-up license (or, if applicable, sublicense) to use the Elan Trademarks
     which relate to the Elan Technology applicable to the Product, such as an
     acronym for the applicable technology applied to the Product, on the terms
     set forth in Clause 10 upon or in relation to the promotion, marketing,
     advertising, sale or offering for sale of the Products.  The Company shall
     not be obliged to use the Elan Trademark to identify the Product but at
     Elan's request shall be obliged to use the Elan Trademark to identify the
     applicable Elan Technology embodied in the Product.  For the avoidance of
     doubt, the Parties hereby confirm that the Company shall not be entitled to
     a licence to use any trademark owned or controlled by Elan which identifies
     a pharmaceutical product.
    

2.3. Elan shall not be obliged to license Patents or Know-How licensed or
     Acquired by Elan from an Independent Third Party on or before the
     Effective Date ("Pre-existing Third Party Technology") to the Company
     (including, but not limited to, Patents or Know-How owned jointly or
     through a joint venture with [****] and [****]).  In the event that Elan
     considers that such Pre-existing Third Party Technology may have
     application in the Field, Elan shall, subject to contractual constraints,
     review such Pre-existing Third Party Technology with the Company and where
     applicable use its reasonable endeavours to procure an agreement between
     the Company and the applicable Independent Third Party (at the Company's
     cost).  Where applicable Elan may, at its option, license or sub-license
     such Pre-existing Third Party Technology to the Company for the Field,
     subject to the payment by the Company to

**** REPRESENTS MATERIAL REACTED PURSUANT TO A REQUEST
FOR CONFIDENTIAL TREATMENT PURSUANT TO RULE 24b-2 UNDER
THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED.







                                     11


<PAGE>   12


     Elan of such amounts as are payable by Elan to any Independent Third
     Party in respect of the exploitation by the Company of the Pre-existing
     Third Party Technology.

   
2.4. Elan hereby confirms that prior to the Effective Date it has not licensed
     or Acquired any Patents or Know How in relation to the Field save and
     except for those that are the subject of the Maynooth Agreement and the
     [****].  Elan shall be responsible for the discharge of the licence fees,
     if any, and royalties and any other payments payable under the Maynooth
     Agreement, or under any agreement concluded with Maynooth University
     Enterprise Development Limited as envisaged in the Maynooth Agreement.
    

2.5. In addition Elan has entered into a preliminary development agreement
     with an Independent Third Party in relation to the Field, the terms of
     which are subject to confidentiality restrictions.  If such preliminary
     development program is successful, Elan shall seek the consent of the
     Independent Third Party to disclose the results of the formulation
     development program to the Company, and such results shall be deemed Third
     Party Technology and governed by the provisions of Clause 2.9. of this
     Agreement and Clause 9.5. of the Development Agreement.

2.6. Subject to the terms of this Agreement, the Company hereby grants to Elan
     for the Term of this Agreement a [****] license to use the Elan Program
     Technology, Orasomal Program Technology and the Company Program
     Technology, and, subject to the terms and conditions of the Orasomal
     License Agreement, a [****] sublicense to use the Orasomal Technology
     insofar as is necessary, in each case, solely to permit Elan to perform
     its obligations pursuant to this Agreement and the Development Agreement
     for the benefit of the Company, including, without limitation, (a)
     conducting research and development pursuant to the Research and
     Development Programs, and (b) developing, manufacturing and supplying the
     Products and any other chemical or formulation components.  All rights of
     ownership with respect to the Elan Program Technology,  the Orasomal
     Program Technology and the Company Program Technology shall at all times
     remain solely with the Company.

2.7. Elan is entitled to negotiate a license agreement to exploit the Elan
     Program Technology outside the Field in accordance with the provisions of
     Clauses 9.3. and 9.8. of the Development Agreement pursuant to which the
     Company may in the case of Clause 9.3. of the Development Agreement, and
     shall in the case of Clause 9.8. of the Development Agreement grant Elan a
     licence to use the Elan Program Technology.

2.8. The Company shall not be permitted to sublicense any of the rights
     granted to the Company by Elan pursuant to this Agreement without the
     prior written consent of Elan, which consent will not be unreasonably
     withheld or delayed; provided that such reasonableness standard shall not
     be applicable in the case of a proposed sublicense to

**** REPRESENTS MATERIAL REACTED PURSUANT TO A REQUEST
FOR CONFIDENTIAL TREATMENT PURSUANT TO RULE 24b-2 UNDER
THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED.








                                     12



<PAGE>   13


   
      any Listed Company  However, the Company shall have the right to grant a
      royalty-free sublicense to the Elan Technology in the Field to Orasomal to
      enable Orasomal to fulfil its obligations pursuant to the Orasomal License
      Agreement and the Development Agreement.  Insofar as the obligations owed
      by the Company to Elan are concerned, the Company shall remain responsible
      for all acts and omissions of any sub-licensee, including Orasomal, as if
      they were by the Company.  In the event of a termination of this Agreement
      due to a breach by the Company, Elan shall have the right but not the
      obligation to assume any such sub-license.
    

2.9.  Subject to the other provisions of this Agreement and to the provisions
      of [****] of the Development Agreement, [****] (a) for or on behalf of
      the Company, (b) in relation to [****] for which the Company has elected
      not to [****] or has been unable to [****] after the applicable [****]
      has been exercised by the Company, or (c) with the Company's prior
      written consent.  For the avoidance of doubt the Parties confirm that the
      foregoing [****] is applicable to the [****] conducted by [****] through
      its division [****] and shall not apply to [****], including, but not
      limited to, [****] and if it shall become such, [****].

2.10. Elan shall also provide all reasonable assistance to the Company in
      delivering and enabling the Company to utilize the Company's license to
      the Elan Technology.


3.    IMPROVEMENTS

3.1.  Except to the extent prohibited by any undertaking given to any
      Independent Third Party (provided that after the Closing Date each Party
      shall use all commercially reasonably efforts to exclude or minimise the
      extent of any such limitations or restrictions), the licenses to the Elan
      Technology granted by Elan pursuant to Clause 2 shall include the
      Improvements.  If Elan shall develop any Improvements during the Term,
      Elan shall communicate to the Company such Improvements and shall provide
      to the Company such rights, licenses, information and explanations as the
      Company may reasonably require to be able effectively to utilise the
      Improvements for the life of this Agreement.  Such disclosed Improvements
      shall automatically on disclosure to the Company become part of the Elan
      Know-How or Elan Patents (as the case may be) and shall be subject to the
      provisions of this Agreement.  the Company shall not have any right to
      use such Improvements outside the Field.

**** REPRESENTS MATERIAL REACTED PURSUANT TO A REQUEST
FOR CONFIDENTIAL TREATMENT PURSUANT TO RULE 24b-2 UNDER
THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED.








                                     13



<PAGE>   14


4.   INTELLECTUAL PROPERTY RIGHTS

4.1. The respective rights of Elan, the Company and Orasomal to exploit the
     Elan Program Technology, Orasomal Program Technology and the Company
     Program Technology shall be regulated by the provisions of Clause 6 of the
     Development Agreement.


5.   EXPLOITATION OF LICENSED TECHNOLOGY

5.1. Except as provided for in this Agreement, the Company's obligations to
     exploit the Elan Technology shall be regulated by Clause 9 of the
     Development Agreement.

5.2. The Company shall exert its reasonable efforts [****] consistent with the
     [****] in each [****] determined in a commercially reasonable manner and
     with a view to [****].  The Company will diligently pursue the [****], as
     provided in the Business Plan.

5.3. The Company will be solely responsible for ensuring that the manufacture,
     promotion, distribution, marketing and sale of the Products within each
     country of the Territory is in strict accordance with all the legal and
     regulatory requirements of each country of the Territory.

5.4. All advertising, promotional materials and marketing costs needed to
     exploit the Products are to be paid for by the Company.  Any packaging for
     the Products shall contain information to the effect that the Product has
     been developed by Elan in conjunction with Orasomal and the Company and is
     to be agreed upon by Elan in advance.  Such acknowledgement shall take
     into consideration regulatory requirements and the Company's reasonable
     commercial requirements.  The Company shall submit copies of all forms of
     trade package cartons and labels and other printed materials to Elan for
     approval before commercial sale of the Product commences.  If a change in
     such materials from that initially approved which would require regulatory
     approval or filing or any other material change is proposed, all such
     package cartons and labels and printed materials shall be resubmitted for
     approval before commercial use thereof.  It shall be presumed that Elan
     approved of such use unless Elan provides written notice of disapproval of
     such use to the Company within ten (10) business days of delivery of such
     materials to Elan, such approval not to be unreasonably withheld.  The
     further consent of Elan shall not be required where the format and content
     of such materials is substantively similar as the materials previously
     furnished to and approved by Elan.


**** REPRESENTS MATERIAL REACTED PURSUANT TO A REQUEST
FOR CONFIDENTIAL TREATMENT PURSUANT TO RULE 24b-2 UNDER
THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED.







                                     14


<PAGE>   15


6.   FINANCIAL PROVISIONS

6.1. In consideration of the rights and licences granted to the Company
     pursuant to this Agreement, the Company shall pay the following amounts to
     Elan in the manner and on the dates set forth below:

     6.1.1.  [****]
     
   
     6.1.2.  [****]
    
     
     6.1.3.  [****]
     
     6.1.4.  [****].

6.2. In consideration of the rights and licences granted to the Company
     pursuant to this Agreement, the Company shall [****] of any and all [****]
     received by the Company to Elan; provided, that Elan's [****] of the
     aggregate of [****] shall not be less than [****]without Elan's prior
     consent, unless the Company shall establish, to Elan's reasonable
     satisfaction, consistent with then-current prudent and customary business
     standards, that an aggregate [****] of less than [****] is necessary in
     order to enable the Company to commercialize the subject Product without
     undue hardship; provided further, that the Company shall use commercially
     reasonable good faith efforts to seek to obtain the [****] on a case-by
     case basis.

6.3. In the event that Elan shall cease to be a shareholder of the Company,
     the Parties shall negotiate in good faith such amendments to the Agreement
     as are equitable and applicable having regard to the fact that Elan no
     longer has any representation on the Board of Directors of the Company or
     the Management Committee (for example the royalty provisions and such
     provisions of the Development Agreement as are applicable), provided that
     such negotiations shall not apply to the existence of the Agreement.

6.4. Payment of royalties shall be made quarterly within forty-five (45) days
     after the expiry of the calendar quarter.  The method of payment shall be
     by way of wire transfer to an account specified by Elan. Each payment made
     to Elan shall be accompanied by a

**** REPRESENTS MATERIAL REACTED PURSUANT TO A REQUEST
FOR CONFIDENTIAL TREATMENT PURSUANT TO RULE 24b-2 UNDER
THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED.







                                     15



<PAGE>   16


      written report, prepared and signed by a senior financial officer of the
      Company.  In addition the report shall clearly show the Net Sales for the
      months of the calendar quarter for which payment is being made on a
      country by country basis.  In the event that no royalty is due to Elan
      for any calendar quarter, the senior financial officer shall so report.
      In addition to the written reports accompanying each payment, the Company
      shall notify Elan, within thirty (30) days of the end of each calendar
      quarter, of the Net Sales of the Product(s) for that preceding quarter on
      a country by country basis.

6.5.  The Company shall maintain and keep clear, detailed, complete, accurate
      and separate records so:

      6.5.1. as to enable any royalties on Net Sales of a Product which shall
             have accrued hereunder to be determined; and

      6.5.2. that any deductions made in arriving at the Net Sales of a Product
             can be determined.

6.6.  All payments due hereunder shall be made in United States Dollars.
      Payments due on Net Sales of the Product made in a currency other than
      United States Dollars shall first be calculated in the foreign currency
      and then converted to United States Dollars on the basis of the exchange
      rate in effect for the purchase of United States Dollars with such
      foreign currency quoted in the Wall Street Journal (or comparable
      publication if not quoted in the Wall Street Journal) with respect to the
      currency of the country of origin of such payment for the day prior to
      the date on which the payment by the Company is being made.

6.7   Subject to the provisions of Clauses 6.8. and 6.10. of this Agreement,
      the Company shall pay all royalties at the full rates specified in this
      Clause 6.

6.8.  If, at any time, legal restrictions in the Territory prevent the prompt
      payment of royalties or any portion thereof, the Parties shall meet to
      discuss suitable and reasonable alternative methods of reimbursing Elan
      the amount of such running royalties. In the event that the Company is
      prevented from making any payment under this Agreement by virtue of the
      statutes, laws, codes or government regulations of the country from which
      the payment is to be made, then such payments may be paid by depositing
      them in the currency in which they accrue to Elan's account in a bank
      acceptable to Elan in the country the currency of which is involved or as
      otherwise agreed by the Parties.

6.9.  Elan and the Company agree to co-operate in all respects reasonably
      necessary to take advantage of any double taxation agreements or similar
      agreements as may, from time to time, be available.






                                     16


<PAGE>   17


6.10. Any taxes payable by Elan on any payment made to Elan pursuant to this
      Agreement shall be for the account of Elan.  If so required by applicable
      law any payment made pursuant to this Agreement shall be made by the
      Company after deduction of the appropriate withholding tax in which event
      the Parties shall co-operate to the extent reasonably necessary to obtain
      the appropriate tax credits as soon as is practicable. In the event of a
      credit, the Company shall forthwith forward copies of the credit
      documentation to Elan.


7.    RIGHT OF AUDIT AND INSPECTION

7.1.  On not more than two times in each calendar year, the Company shall
      permit Elan or its duly authorised representatives upon reasonable notice
      and at any reasonable time during normal business hours to have access to
      inspect and audit the accounts and records of the Company and any other
      book, record, voucher, receipt or invoice relating to the calculation of
      the royalty payments on Net Sales submitted to Elan and to the accuracy
      of the reports which accompanied them.  Any such inspection of the
      Company's records shall be at the expense of Elan, except that if any
      such inspection reveals a deficiency in the amount of the running royalty
      actually paid to Elan hereunder in any calendar quarter of [****] or more
      of the amount of any running royalty actually due to Elan hereunder, then
      the expense of such inspection shall be borne solely by the Company.  Any
      amount of deficiency shall be paid promptly to Elan.  If such inspection
      reveals a surplus in the amount of running royalty actually paid to Elan
      by the Company, Elan shall promptly reimburse the Company the surplus.
      The Company shall maintain the foregoing records for a period of at least
      five (5) years following the end of the calendar year to which they
      pertain.

7.2.  In the event of any unresolved dispute regarding any alleged deficiency
      or overpayment of royalty payments hereunder, the matter will be referred
      to an independent firm of chartered accountants for a resolution of such
      dispute mutually acceptable to both parties.  Any decision by the said
      firm of chartered accountants shall be binding on the Parties.

8.    PATENTS

8.1.  The Company shall permanently mark or otherwise cause Orasomal or any
      Independent Third Party to permanently mark all Products and/or the
      packaging therefor with such license or patent notices and in such manner
      as Elan may reasonably request in writing prior to the sale or commercial
      use thereof.

8.2.  Elan shall be obliged to disclose promptly to the Company inventions
      and discoveries made by or on behalf of Elan otherwise than in connection
      with the performance of a

**** REPRESENTS MATERIAL REACTED PURSUANT TO A REQUEST
FOR CONFIDENTIAL TREATMENT PURSUANT TO RULE 24b-2 UNDER
THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED.







                                     17


<PAGE>   18


     Research and Development Program (which inventions and discoveries
     shall be regulated by the provisions of the Development Agreement), any
     patentable inventions and discoveries within the Elan Know-How which
     relate to the Field as well as any Improvements developed by or on behalf
     of Elan.

8.3. The Parties shall discuss in good faith all material issues relating to
     filing, prosecution and maintenance of Elan Patents (insofar as the Elan
     Patents are of relevance to the Field), the Elan Program Patents, any
     patentable inventions and discoveries within the Elan Know-How that relate
     to the Field and any Improvements developed by or on behalf of Elan (other
     than pursuant to one or more of the Research and Development Programs).
     Subject to agreement to the contrary the following provisions shall apply:

     8.3.1. Elan [****] shall have the right but shall not be obligated (a)
            to secure the grant of any patent from applications within the Elan
            Patents that relate to the Field; (b) to file and prosecute patent
            applications on patentable inventions and discoveries within the
            Elan Know-How that relate to the Field and patentable Improvements
            developed by or on behalf of Elan (other than pursuant to one or
            more of the Research and Development Programs); (c) to defend all
            such applications against Independent Third Party oppositions;
            and/or (d) to maintain in force any issued letters patent within
            the Elan Patents that relate to the Field (including any letters
            patent that may issue covering any Improvements).  Elan shall have
            the sole right in its reasonable business discretion to control
            such filing, prosecution, defence and maintenance; provided
            however, that the Company  shall be provided with copies of all
            documents relating to such filing, prosecution, defence, and
            maintenance in sufficient time to review such documents and comment
            thereon prior to filing of such documents.

     8.3.2. In the event that Elan (i) elects that it does not intend to
            file patent applications on patentable inventions and discoveries
            within the Elan Know-How that relate to the Field or patentable
            Improvements developed by or on behalf of Elan (other than pursuant
            to one or more of the Research and Development Programs) in one or
            more countries in the Territory, (ii) fails to file such an
            application within a reasonable period of time, or (iii) elects or
            fails to maintain or prosecute further any such pending application
            or issued patent then Elan shall so notify the Company in writing
            no less than two (2) months prior to the expiration of any
            applicable due date or time bar, and after receipt of such notice,
            the Company shall have the right, but not the obligation, at the
            Company's sole expense to file and prosecute such patent
            application(s) in the joint names of the Company and Elan, and Elan
            upon written request from the Company shall execute all documents,
            forms and declarations and to do all things as shall be reasonably
            necessary to enable the Company to exercise such option and right.

     8.3.3. In relation to the Elan Program Patents, the Company at its 
            expense shall have the right but shall not be obligated (a) to
            secure the grant of any patent from

**** REPRESENTS MATERIAL REACTED PURSUANT TO A REQUEST
FOR CONFIDENTIAL TREATMENT PURSUANT TO RULE 24b-2 UNDER
THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED.



                                     18



<PAGE>   19

            applications within the Elan Program Patents; (b) to file and
            prosecute patent applications on patentable inventions and
            discoveries within the Elan Program Know-How; (c) to defend all
            such applications against Independent Third Party oppositions;  and
            (d) to maintain in force any issued letters patent within the Elan
            Program Patents (including any patents that issue on patentable
            inventions and discoveries within the Elan Program Know-How).  The
            Company shall have the right to control such filing, prosecution,
            defence and maintenance; provided however Elan and Orasomal shall
            be provided with copies of all documents relating to such filing,
            prosecution, defence, and maintenance in sufficient time to review
            such documents and comment thereon prior to filing of such
            documents.

     8.3.4. In the event that the Company (i) elects that it does not
            intend to file patent applications on patentable inventions and
            discoveries within the Elan Program Know-How, (ii) fails to file
            such an application within a reasonable period of time or, (iii)
            elects or fails to maintain or prosecute further any such pending
            application or issued patent then the Company shall so notify Elan
            in writing no less than two (2) months prior to the expiration of
            any applicable due date or time bar, and after receipt of such
            notice, Elan shall, insofar as it is necessary to enable Elan to
            exploit the Elan Program Know-How pursuant to Clauses 2.6. and 2.7.
            of this Agreement or Clause 6.5. of the Development Agreement, have
            the right, but not the obligation at Elan's sole expense to file
            and prosecute such patent application(s) in the Company's name and
            the Company upon written request from Elan shall execute all
            documents, forms and declarations and to do all things as shall be
            reasonably necessary to enable Elan to exercise such option and
            right.  In the event that Elan and the Company negotiate a license
            to enable Elan to exploit the Elan Program Technology outside the
            Field pursuant to Clause 6.5. of the Development Agreement, the
            Parties shall take the patent related expenditures incurred by Elan
            as referred to above into account to the extent they are incurred
            in relation to the Patents being licensed to Elan in determining
            the royalty payable by Elan to the Company.  Notwithstanding
            anything herein to the contrary, the Parties agree that the Company
            shall own all right, title and interest in such patent applications
            and any patents that may issue thereon (including any and all
            divisions, continuations, continuations-in-part, extensions,
            additions or reissues thereto or thereof).  Insofar as any patent
            filing has application within and outside the Field, the Company
            and Elan will negotiate, in good faith, on the course of action to
            be taken.

8.4. Elan and the Company shall promptly inform the other in writing of any
     alleged infringement of any Patents within the Elan Patents that relate to
     the Field, the Elan Program Patents, the Orasomal Program Patents, or the
     Company Program Patents or any alleged misappropriation of trade secrets
     within the Elan Know-How that relate to the Field, the Elan Program
     Know-How, the Orasomal Program Know-How or the




                                     19


<PAGE>   20


      Company Program Technology by an Independent Third Party of which it
      becomes aware and provide the other with any available evidence of such
      infringement or misappropriation.

      8.4.1. During the Term, the Company shall have the right to bring suit
             or otherwise take action at its own expense and for its own
             benefit any such alleged infringements of the Elan Patents or
             misappropriation of the Elan Know-How, insofar as such
             infringements or misappropriation relate to the Field.  In the
             event that the Company takes such action, the Company shall do so
             at its own cost and expense.  At the Company's request, Elan will
             co-operate with such action insofar as the said action relates to
             the Field at the Company's sole cost and expense.  Any recovery
             remaining after the deduction by the Company of the reasonable
             expenses (including attorney's fees and expenses) incurred in
             relation to such an infringement proceeding shall constitute Net
             Sales for the purpose of this Agreement and the Orasomal License
             Agreement and prior to commencing, or at an early stage in the
             proceedings, the Company, Elan and Orasomal shall agree upon the
             royalty that shall be due to each of Elan and Orasomal in respect
             of such deemed  Net Sales. Should the Company decide not to pursue
             such infringers, within a reasonable period but in any event (i)
             within sixty (60) days after receiving written notice of such
             alleged infringement or misappropriation or (ii) ten (10) days
             before the time limit, if any, set forth in the appropriate laws
             and regulations for the filing of such actions, whichever comes
             first, or if such alleged infringement or misappropriation does
             not relate to the Field, Elan may in its discretion initiate such
             proceedings in its own name, at its expense and for its own
             benefit, and at Elan's request, the Company will co-operate with
             such action at Elan's sole cost and expense.  In the alternative,
             the Parties may agree to institute such proceedings in their joint
             names and shall reach agreement as to the proportion in which they
             will share the proceeds of any such proceedings, and the expense
             of any costs not recovered, or the costs or damages payable to the
             Independent Third Party.  If the infringement of the Elan Patents
             affects the Field as well as other products being developed or
             commercialised by Elan or its commercial partners outside the
             Field, the Parties shall agree as to the manner in which the
             proceedings should be instituted and shall reach agreement as to
             the proportion in which they will share the proceeds of any such
             proceedings, and the expense of any costs not recovered, or the
             costs or damages payable to the Independent Third Party.

      8.4.2. During the Term, the Company shall have the first right but not
             the obligation to bring suit or otherwise take action against any
             alleged infringement of the Elan Program Patents or the Company
             Program Patents (and as appears from Clause 8.4.2. of the Orasomal
             License Agreement, the Orasomal Program Patents) or alleged
             misappropriation of the Elan Program Know-How (and as appears from





                                     20


<PAGE>   21


             Clause 8.4.2. of the Orasomal License Agreement, the Orasomal
             Program Know-How) within the Field.  If any such alleged
             infringement or misappropriation occurs which gives rise to a
             cause of action both inside and outside the Field, the Parties
             shall negotiate, together with Orasomal, in good faith to
             determine the cause of action to be taken.  In the event that the
             Company takes such action, the Company shall do so solely at its
             own cost and expense.  At the Company's request, Elan will
             co-operate with any such action at the Company's sole cost and
             expense.  Any recovery remaining after the deduction by the
             Company of the reasonable expenses (including attorney's fees and
             expenses) incurred in relation to such an infringement proceeding
             shall constitute Net Sales for the purpose of this Agreement and
             the Orasomal License Agreement and prior to commencing, or at an
             early stage in the proceedings, the Company, Elan and Orasomal
             shall agree upon the royalty that shall be due to each of Elan and
             Orasomal in respect of such deemed Net Sales.  In the event that
             the Company decides not to take such action against such
             infringement or misappropriation or fails to do so within a
             reasonable period but in any event (i) within sixty (60) days
             after receiving written notice of such alleged infringement or
             misappropriation or (ii) ten (10) days before the time limit, if
             any, set forth in the appropriate laws and regulations for the
             filing of such actions, whichever comes first, Elan may in its
             discretion initiate such proceedings in its own name regarding the
             Elan Program Technology (or in the Company's name if required by
             law; provided, however, that Elan identifies itself as the real
             party in interest and does not take any action that would expose
             the Company to liability of any kind).  In the event that Elan
             initiates such action, it shall do so solely at its sole cost and
             expense and all damages and monetary award recovered in or with
             respect to such action shall be the property of Elan.  At Elan's
             request, the Company agrees to co-operate with Elan in any such
             proceeding at Elan's sole cost and expense.  In the alternative,
             the Parties may agree to institute such proceedings in their joint
             names and shall reach agreement as to the proportion in which they
             will share the proceeds of any such proceedings, and the expense
             of any costs not recovered, or the costs or damages payable to the
             Independent Third Party.

8.5. In the event that a claim or proceedings are brought against the Company
     by an Independent Third Party alleging that the sale, distribution or use
     of the Product in the Territory solely because of the Company's use of the
     Elan Technology infringes the intellectual property rights of such an
     Independent Third Party, the Company shall promptly advise Elan of such
     threat or suit.

8.6. Elan shall have no liability to the Company whatsoever or howsoever
     arising for any losses incurred by the Company as a result of having to
     cease selling Product or having to defer the launch of selling Product as
     a result of any infringement proceedings.





                                     21


<PAGE>   22


9.   CONFIDENTIAL INFORMATION

   
9.1. The Parties acknowledge that it may be necessary, from time to time, to
     disclose to each other confidential and/or proprietary information,
     including without limitation, the Technologies, Program Technology,
     Improvements and the Patents relating thereto, inventions, works of
     authorship, trade secrets, specifications, designs, data, know-how and
     other information relating to the Field, the MIT Agreement, the Maynooth 
     Agreement, the terms of the Definitive Documents, the Products, processes
     and services, or the business of the disclosing Party ("Confidential 
     Information").
    

     Confidential Information shall be deemed not to include:

     (i)   information that is in the public domain;

     (ii)  information which is made public by the disclosing Party;

     (iii) information which is independently developed by a Party without the
           aid or application of the Confidential Information;

     (iv)  information that is published or otherwise becomes part of the 
           public domain without any disclosure by a Party, or on the part of 
           a Party's directors, officers, agents, representatives or employees;

     (v)   information that becomes available to a Party on a non-confidential
           basis, whether directly or indirectly, from a source other than a 
           Party, which source, to the best of the Party's knowledge, did not 
           acquire this information on a confidential basis; or

     (vi)  information which the receiving Party is required to disclose
           pursuant to:

           (A)  a valid order of a court or other governmental body or any 
                political subdivision thereof or otherwise required by law; or
           
           (B)  other requirement of law; provided that if the receiving Party  
                becomes legally required to disclose any confidential
                information, the receiving Party shall give the disclosing
                Party prompt notice of such fact so that the disclosing Party
                may obtain a protective order or other appropriate remedy
                concerning any such disclosure.  The receiving Party shall
                fully co-operate with the disclosing Party in connection with
                the disclosing Party's efforts to obtain any such order or
                other remedy.  If any such order or other remedy does not fully
                preclude disclosure, the receiving Party shall make such
                disclosure only to the extent that such disclosure is legally
                required.

   
    


                                     22


<PAGE>   23


9.2. Any Confidential Information revealed by a Party to another Party shall
     be used by the receiving Party exclusively for the purposes of fulfilling
     the receiving Party's obligations under this Agreement and the Development
     Agreement and for no other purpose.

9.3. Each Party agrees to disclose Confidential Information of another Party
     only to those employees, representatives and agents requiring knowledge
     thereof in connection with their duties directly related to the fulfilling
     of the Party's obligations under this Agreement.  Each Party further
     agrees to inform all such employees, representatives and agents of the
     terms and provisions of this Agreement and their duties hereunder and to
     obtain their consent hereto as a condition of receiving Confidential
     Information.  Each Party agrees that it will exercise the same degree of
     care, but in no event less than a reasonable degree, and protection to
     preserve the proprietary and confidential nature of the Confidential
     Information disclosed by a Party, as the receiving Party would exercise to
     preserve its own proprietary and confidential information.  Each Party
     agrees that it will, upon request of a Party, return all documents and any
     copies thereof containing Confidential Information belonging to or
     disclosed by, such Party.

9.4. Notwithstanding the above, each Party may use or disclose confidential
     information disclosed to it by another Party to the extent such use or
     disclosure is reasonably necessary in filing or prosecuting patent
     applications, prosecuting or defending litigation, complying with patent
     applications, prosecuting or defending litigation, complying with
     applicable governmental regulations or otherwise submitting information to
     tax or other governmental authorities, conducting clinical trials, or
     making a permitted sub-license or otherwise exercising its rights
     hereunder, provided that if a Party is required to make any such
     disclosure of the other Party's confidential information, other than
     pursuant to a confidentiality agreement, such Party shall inform the other
     Party, allow the other Party to participate in the process and generally
     limit disclosure to the greatest extent possible and seek confidential
     treatment or a protective order.

9.5. The provisions relating to confidentiality in this Clause 9 shall remain
     in effect during the Term, and for a period of [****] following the
     expiration or earlier termination of this Agreement.

9.6. The Parties agree that the obligations of this Clause 9 are necessary and
     reasonable in order to protect the Parties' respective businesses, and
     each Party expressly agrees that monetary damages would be inadequate to
     compensate a Party for any breach by the other Party of its covenants and
     agreements set forth herein.  Accordingly, the Parties agree and
     acknowledge that any such violation or threatened violation will cause
     irreparable injury to a Party and that, in addition to any other remedies
     that may be available, in law and equity or otherwise, any Party shall be
     entitled to obtain injunctive

**** REPRESENTS MATERIAL REACTED PURSUANT TO A REQUEST
FOR CONFIDENTIAL TREATMENT PURSUANT TO RULE 24b-2 UNDER
THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED.




                                     23


<PAGE>   24

      relief against the threatened breach of the provisions of this Clause 9,
      or a continuation of any such breach by the other Party, specific
      performance and other equitable relief to redress such breach together
      with its damages and reasonable counsel fees and expenses to enforce its
      rights hereunder, without the necessity of proving actual or express
      damages.


10.   TRADEMARKS

10.1. The Company undertakes that all Products and all materials utilised in
      connection with the provision, marketing, distribution, advertising
      and/or marketing thereof that bear or incorporate the Elan Trademarks
      shall be of a consistent and high standard of quality, commensurate with
      the prestige of the Elan Trademarks and that its use of the Elan
      Trademarks shall conform to such reasonable standards as Elan shall from
      time to time specify.  The Company shall co-operate fully with the
      reasonable instructions of Elan with respect to the maintenance of such
      standards.

10.2. The Company shall:

      10.2.1. subject to the agreement of the Company's commercial partner
              such as a sub-licensee, favourably consider promoting and using
              the Elan Trademarks in each country of the Territory and provide
              proof of use of the Elan Trademarks if requested by Elan;

      10.2.2. use the Elan Trademarks strictly in compliance with any
              applicable trademark and other laws and regulations and to use
              such legends, markings and notices in connection therewith as are
              required by law or otherwise reasonably required by Elan to
              protect Elan's rights therein;

      10.2.3. do nothing to mislead the public as to the nature or quality of
              any Product on which the Elan Trademarks are affixed nor use it
              on advertising or display materials which are unethical, immoral
              or offensive to good taste;

      10.2.4. at Elan's reasonable request, supply samples of the Products
              and any materials utilized in connection with the distribution,
              advertising and/or marketing thereof that bear or incorporate the
              Elan Trademarks for inspection by Elan;

      10.2.5. not adopt or seek to register any trademark, design or logo
              confusingly similar to the Elan Trademarks without Elan's prior
              written consent; and

      10.2.6. promptly notify Elan in writing if any alleged infringement or
              unauthorized use  of the Elan Trademarks comes to the Company's
              attention.






                                     24


<PAGE>   25

10.3. The Company undertakes to use the Elan Trademarks in relation only to
      the Products (or materials for advertising and promotion thereof), and in
      accordance with any reasonable specifications and directions given by
      Elan from time to time.  In particular, but without limitation, the
      Company agrees to state on the Products or materials for the advertising
      or promotion thereof that the Elan Trademarks are used under license from
      Elan.

10.4. The Company shall take no action which could prejudice the validity,
      re-registration or reputation of the Elan Trademarks or which could
      impair the reputation, business standing or prestige of Elan.

10.5. Elan shall remain the owner of the Elan Trademarks and the goodwill
      associated with the same and the Company agrees not to assert any
      ownership interest in the Elan Trademarks or the goodwill associated
      therewith.  The Company shall own and retain all right, title, and
      interest in and to any trademark or trademarks (other than the Elan
      Trademarks and the Orasomal Trademarks) used in the Territory in
      connection with the sale of the Products.

10.6. Elan shall have the exclusive right to take such action in respect of
      the registration, defence, infringement and maintenance of the Elan
      Trademarks as Elan in its reasonable business judgement deems
      appropriate. The Company shall provide all such assistance and
      co-operation, including the furnishing of documents and information and
      the execution of registered user documentation or the like, as may be
      required to give effect to any action as may be taken, or required to be
      taken, by Elan. In taking any such action, Elan shall consider the
      legitimate commercial interests of the Company.

   
10.7. New trademarks used in relation to the Elan Program Technology, the
      Orasomal Program Technology, the Company Program Technology, or the
      Products and all registrations thereof and applications therefor shall be
      owned and registered by the Company.  New trademarks used in relation to
      the Elan Technology and all registrations thereof and applications
      therefor shall be owned and registered by Elan and shall constitute Elan
      Trademarks.
    


11.   TERM AND TERMINATION

   
11.1. This Agreement is concluded for a period commencing as of the Effective
      Date and expiring on a Product by Product basis and on a country by
      country basis on the later to occur of:
    

   
      11.1.1. fifteen (15) years starting from the date of the launch of the
      Product in the country concerned; and
    

   
    




                                     25


<PAGE>   26


11.1.2. the last to expire Patent included in the Elan Patents and/or the Elan
        Program Patents and/or the Orasomal Program Patents and/or the Company
        Program Patents (the "Term").

   
11.2.   At the end of the Term, the Company shall have a paid-up non-exclusive
        licence to the Elan Technology for the Field.
    

11.3.1. For the purpose of this Clause 11.3, a "Relevant Event" is committed by
        Elan or the Company if:

        (i)   it commits a material breach of its obligations under this
              Agreement and fails to remedy it within sixty (60) days of being
              specifically required in writing to do so by the other Party;
              provided, however, that if the breaching Party has proposed a
              course of action to rectify the breach and is acting in good
              faith to rectify same but has not cured the breach by the
              sixtieth (60th) day, such rectifying period shall be extended by
              an amount of time as is reasonably necessary to permit the breach
              to be rectified;

        (ii)  it ceases , wholly or substantially, to carry on its business,
              other than for the purpose of a reorganization, without the prior
              written consent of the other Participant (such consent not to be
              unreasonably withheld);

        (iii) the voluntary appointment of a liquidator, receiver, 
              administrator, examiner, trustee or similar officer over all or
              substantially all of its assets under the laws of such
              Participant's state or country of incorporation; or

        (iv)  an application or petition for bankruptcy, corporate
              reorganization, composition, administration, examination,
              arrangement or any other procedure similar to any of the
              foregoing under the laws of such Participant's state or country
              of incorporation, is filed, and is not discharged within ninety
              (90) days.

11.3.2. If either Party commits a Relevant Event, the other Party shall have 
        in addition to all other legal and equitable rights and remedies
        hereunder, the right to terminate this Agreement upon thirty (30) days'
        written notice; provided, that such written notice be given within
        sixty (60) days following the date that the other Party becomes aware
        of the Relevant Event.


   
11.4.   In the event that (a) a Listed Company shall acquire fifteen per cent
        (15%) or more of the voting stock of Endorex, Orasomal or the Company, 
        or otherwise control their management or business, or (b) any other
        person or entity shall acquire fifty (50%) or more of the voting stock
        of Endorex, Orasomal or the Company, or otherwise
    

   
    






                                     26


<PAGE>   27

   
      merge, consolidate or enter into any similar transaction (or binding
      agreement in respect thereof) with any of such entities, this Agreement
      at the option of Elan, shall terminate if Elan provides written notice of
      its election to so terminate within ninety (90) days of the date on
      which Elan becomes aware of, or should reasonably have become aware, of
      the event; provided, however, that the foregoing shall not apply in
      relation to any exercise of the call options by Elan or Endorex as
      contemplated by the Company Subscription Agreement.
    

   
11.5. Upon exercise of those rights of termination as specified in Clause 11.1
      to Clause 11.4, inclusive or elsewhere within the Agreement, this
      Agreement shall, subject to the other provisions of the Agreement,
      automatically terminate forthwith and be of no further legal force or
      effect.
    

11.6. Upon expiration or termination of the Agreement:

      11.6.1. any sums that were due from the Company to Elan on Net Sales in
              the Territory or in such particular country or countries in the
              Territory (as the case may be) prior to the expiration or
              termination of this Agreement as set forth herein shall be paid
              in full within sixty (60) days of the expiration or termination
              of this Agreement for the Territory or for such particular
              country or countries in the Territory (as the case may be);

      11.6.2. all confidentiality provisions set out herein shall remain in
              full force and effect;

      11.6.3. the rights of inspection and audit set out in Clause 7 shall
              continue in force for a period of one year;

      11.6.4. except as expressly provided for under Clause 11.6.5. all
              rights, licenses and sublicenses granted in and pursuant to this
              Agreement shall cease for the Territory or for such particular
              country or countries in the Territory (as the case may be). 
              Following such expiration or termination, the Company may not
              thereafter, except as expressly provided for in Clause 11.6.5,
              use in the Territory or in such particular country or countries
              in the Territory (as the case may be) (a) any valid and unexpired
              Elan Patents, (b) any Elan Know-How that remains confidential or
              otherwise proprietary to Elan, and/or (c) any Elan Trademarks;
              and

      11.6.5. the Company shall promptly make an accounting to Elan of the
              inventory of the Product which it has in the Territory or for
              such particular country or countries in the Territory (as the
              case may be), if any, as of the date of such termination and the
              Company shall thereafter have the right for a period of six (6)
              months after said expiration or termination to sell such
              inventory of the Product in the Territory or in such particular
              country or countries in the Territory (as the case

   
    





                                     27


<PAGE>   28

              may be) or, if appropriate and legally permissible, to transport  
              such inventory of Product for sale in another country or
              countries in the Territory within such six month period; provided
              that the Net Sales thereof shall be subject to the royalty
              provisions of Clause 6 and so payable to Elan.  Thereafter, any
              remaining inventory of  Product shall be disposed of by mutual
              agreement of the Parties in accordance with regulatory
              requirements.


12.   WARRANTIES/INDEMNITIES

   
12.1. Elan represents and warrants to the Company that to Elan's best
      knowledge, after reasonable investigations, (a) Elan has the right to
      grant the licenses and rights granted herein, (b) Schedule 1 contains a
      summary of the Elan Technology existing as of the Effective Date, (c)
      other than the Maynooth Agreement there are no agreements with any third
      parties that relate to Elan Technology existing as of Effective Date, (d)
      that to the best of its knowledge and belief, Elan is not in breach or
      threatened breach of the Maynooth Agreement and will in the future not
      procure a breach and (e) there are no agreements with any Independent
      Third Parties that conflict with the rights granted by Elan pursuant to
      this Agreement.
    

12.2. Elan represents and warrants to the Company that it has the sole,
      exclusive and unencumbered right to grant the licenses and rights herein
      granted to the Company, and that it has not granted any option, license,
      right or interest in or to the Elan Technology to any Independent Third
      Party which would conflict with the rights granted by this Agreement.

12.3. The Company represents and warrants to Elan that it has the sole,
      exclusive and unencumbered right to grant the licenses and rights herein
      granted to Elan and that it has not granted any option, license, right or
      interest in or to the Elan Program Technology, the Orasomal Program
      Technology or the Company Program Technology to any Independent Third
      Party which would conflict with the rights granted by this Agreement.

12.4. Elan represents and warrants to the Company that to the best of its
      knowledge, the true inventors of the subject matter claimed are named in
      the Elan Patents and all such inventors have irrevocably assigned all
      their rights and interests therein to Elan.

12.5. Elan and the Company each represent and warrant to and for the benefit
      for each other that the execution of this Agreement by them and the full
      performance and enjoyment of the rights of them under this Agreement will
      not breach the terms and conditions of any license, contract,
      understanding or agreement, whether express, implied, written or oral
      between them and any Independent Third Party.


   
    



                                     28


<PAGE>   29

12.6. In addition to any other indemnifications provided for herein, Elan
      shall indemnify and hold harmless the Company and its Affiliates and
      their respective employees, agents, partners, officers and directors from
      and against any claims, losses, liabilities or damages (including
      reasonable attorney's fees and expenses) incurred or sustained by the
      Company arising out of or in connection with any breach of any
      representation, covenant, warranty or obligation by Elan hereunder.

12.7. In addition to any other indemnifications provided for herein, the
      Company shall indemnify and hold harmless Elan and its Affiliates and
      their respective employees, agents, partners, officers and directors from
      and against any claims, losses, liabilities or damages (including
      reasonable attorney's fees and expenses) incurred or sustained by Elan
      arising out of or in connection with any breach of any representation,
      covenant, warranty or obligation by the Company hereunder.

12.8. The Company shall assume the sole and entire responsibility and shall
      indemnify and save harmless Elan from any and all claims, liabilities,
      expenses, including reasonable attorney's fees, responsibilities and
      damages by reason of any claim, proceedings, action, liability or injury
      arising out of any faults of the Product resulting from the transport,
      packaging, storage, handling, distribution, marketing or sale of the
      Product by the Company, to the extent that it was caused by the
      negligence or wrongful acts or omissions on the part of the Company.

12.9. As a condition of obtaining an indemnity in the circumstances set out
      above, the Party seeking an indemnity shall:

      12.9.1. fully and promptly notify the other Party of any claim or
              proceeding, or threatened claim or proceeding;

      12.9.2. permit the indemnifying Party to take full care and control of
              such claim or proceeding;

      12.9.3. co-operate in the investigation and defence of such claim or
              proceeding;

      12.9.4. not compromise or otherwise settle any such claim or proceeding
              without the prior written consent of the other Party, which
              consent shall not be unreasonably withheld conditioned or
              delayed; and

      12.9.5. take all reasonable steps to mitigate any loss or liability in
              respect of any such claim or proceeding.







                                     29


<PAGE>   30


12.10. NOTWITHSTANDING ANYTHING TO THE CONTRARY IN THIS AGREEMENT, ELAN AND
       NEWCO SHALL NOT BE LIABLE TO THE OTHER BY REASON OF ANY REPRESENTATION
       OR WARRANTY, CONDITION OR OTHER TERM OR ANY DUTY OF COMMON LAW, OR UNDER
       THE TERMS OF THIS AGREEMENT, FOR ANY CONSEQUENTIAL, INDIRECT OR
       INCIDENTAL LOSS OR DAMAGE (WHETHER FOR LOSS OF PROFIT OR OTHERWISE) AND
       WHETHER OCCASIONED BY THE NEGLIGENCE OF THE RESPECTIVE PARTIES, THEIR
       EMPLOYEES OR AGENTS OR OTHERWISE.


13.    INSURANCE

13.1.  Elan shall maintain comprehensive general liability insurance,
       including product liability insurance on the Products manufactured
       and/or sold by Elan in such prudent amount as shall be determined by the
       Management Committee.  Elan shall provide the Company with a certificate
       from the insurance company verifying the above and undertakes to notify
       the Company directly at least thirty (30) days prior to the expiration
       or termination of such coverage.  Elan shall also provide the Company
       with a vendor's certificate substantially in a form to be agreed between
       the Parties.

13.2.  The Company shall maintain comprehensive general liability insurance,
       including product liability insurance on Products manufactured and/or
       sold by the Company that incorporate intellectual property licensed
       hereunder by Elan in such prudent amount as shall be determined by the
       Management Committee.  The Company shall provide Elan with a certificate
       from the insurance company verifying the above and undertakes to notify
       Elan thirty (30) days prior to the expiration or termination of such
       coverage.


14.    IMPOSSIBILITY OF PERFORMANCE - FORCE MAJEURE

14.1.  Neither Party to this Agreement shall be liable for delay in the
       performance of any of its obligations hereunder if such delay results
       from causes beyond its reasonable control, including, without
       limitation, acts of God, fires, strikes, acts of war, or intervention of
       a government authority, non availability of raw materials, but any such
       delay or failure shall be remedied by such Party as soon as practicable.


15     SETTLEMENT OF DISPUTES; PROPER LAW







                                     30


<PAGE>   31

15.1. The Parties will attempt in good faith to resolve any dispute arising
      out of or relating to this Agreement promptly by negotiation between
      executives of the Parties, failing which the Parties shall invoke the
      dispute resolution provisions set forth in Clause 16 of the Development
      Agreement.

15.2. This Agreement shall be governed by and construed in accordance with
      the laws of New York and subject to the provisions of Clause 15.1, the
      Parties agree to submit to the jurisdiction of the courts of New York for
      the resolution of disputes hereunder, which the Parties have not
      otherwise agreed should be subject to the binding determination of an
      Expert or Panel, pursuant to the terms of this Agreement.


16.   ASSIGNMENT

   
16.1. This Agreement may not be assigned by either Party without the prior
      written consent of the other, which consent in relation to the proposed
      assignment to an Affiliate of Elan or the Company, as the case may be,
      shall not be unreasonably withheld, conditioned or delayed.
    


17.   NOTICES

17.1. Any notice to be given under this Agreement shall be sent in writing in
      English by registered mail, airmail, reputable courier or recorded
      delivery post, or telecopied (with a confirmation copy promptly sent by
      mail) to:

      -    if to Elan:      Elan Corporation, plc
                            Lincoln House             
                            Lincoln Place             
                            Dublin 2, Ireland         
                            Telecopier: 353 1 662 4960
                            Attention:     Vice President & General Counsel
                                           Elan Pharmaceutical Technologies

           with a copy to:  Brock Fensterstock Silverstein & McAuliffe LLC
                            153 East 53rd Street       
                            56th Floor                 
                            New York, New York  10022  
                            Telecopier: 1 212 371 5500 
                            Attention: David Robbins   

   
    





                                     31


<PAGE>   32


      -    if to the Company:  Endorex Vaccine Delivery Technologies, Inc.
                               900 North Shore Drive
                               Lake Buff, Illinois  60044
                               Telecopier: 1 847 604 8570
                               Attention:     President

           with a copy to:     Brobeck Phleger & Harrison LLP
                               1633 Broadway
                               New York, New York  10019
                               Telecopier: 1 212 586 7878
                               Attention: Richard Plumridge

      or to such other address(es) as may from time to time be notified by any
      Party to the others hereunder.

17.2. Any notice sent by mail shall be deemed to have been delivered within
      seven (7) working days after dispatch, any notice sent by reputable
      courier shall be deemed to have been delivered within two (2) working
      days after dispatch and any notice sent by telecopy shall be deemed to
      have been delivered within twenty four (24) hours of the time of the
      dispatch. Notices of change of address shall be effective upon receipt.


18.   MISCELLANEOUS CLAUSES

18.1. No waiver of any right under this Agreement shall be deemed effective
      unless contained in a written document signed by the Party charged with
      such waiver, and no waiver of any breach or failure to perform shall be
      deemed to be a waiver of any other breach or failure to perform or of any
      other right arising under this Agreement.

18.2. If any provision in this Agreement is agreed by the Parties to be, or
      is deemed to be, or becomes invalid, illegal, void or unenforceable under
      any law that is applicable hereto, (i) such provision will be deemed
      amended to conform to applicable laws so as to be valid and enforceable
      or, if it cannot be so amended without materially altering the intention
      of the Parties, it will be deleted, with effect from the date of such
      agreement or such earlier date as the Parties may agree, and (ii) the
      validity, legality and enforceability of the remaining provisions of this
      Agreement shall not be impaired or affected in any way.

18.3. The Parties shall use their respective reasonable endeavours to ensure
      that the Parties and any necessary Independent Third Party shall do,
      execute and perform all such further deeds, documents, assurances, acts
      and things as any of the Parties hereto may 




                                     32

<PAGE>   33


       reasonably require by notice in writing to the other Party or such
       Independent Third Party to carry the provisions of this Agreement.

18.4.  This Agreement shall be binding upon and enure to the benefit of the
       Parties hereto, their successors and permitted assigns and sub-licensees.

18.5.  No provision of this Agreement shall be construed so as to negate,
       modify or affect in any way the provisions of any other agreement
       between the Parties unless specifically referred to, and solely to the
       extent provided, in any such other agreement.  In the event of a
       conflict between the provisions of this Agreement and the provisions of
       the Development Agreement, the terms of the Development Agreement shall
       prevail unless this Agreement specifically provides otherwise.
       
18.6.  No amendment, modification or addition hereto shall be effective or
       binding on either Party unless set forth in writing and executed by a
       duly authorised representative of each Party.

18.7.  This Agreement may be executed in any number of counterparts, each of
       which when so executed shall be deemed to be an original and all of
       which when taken together shall constitute this Agreement.

18.8.  Each of the Parties undertake to do all things reasonably within its
       power which are necessary or desirable to give effect to the spirit and
       intent of this Agreement.

18.9.  Each of the Parties hereby acknowledges that in entering into this
       Agreement it has not relied on any representation or warranty save as
       expressly set out herein or in any document referred to herein.

18.10. Nothing contained in this Agreement is intended or is to be construed
       to constitute Elan and the Company as partners, or Elan as an employee
       of the Company, or the Company as an employee of Elan.  Neither Party
       hereto shall have any express or implied right or authority to assume or
       create any obligations on behalf of or in the name of the other Party or
       to bind the other Party to any contract, agreement or undertaking with
       any Independent Third Party.








                                     33


<PAGE>   34



IN WITNESS THEREOF the Parties hereto have executed this License Agreement in
duplicate.


/s/ Thomas G. Lynch

SIGNED BY Thomas G. Lynch
For  and on behalf of
ELAN CORPORATION, PLC









/s/ Michael S. Rosen

SIGNED BY Michael S. Rosen
For and on behalf of
ENDOREX VACCINE DELIVERY TECHNOLOGIES, INC.










                                     34


<PAGE>   35


                                   SCHEDULE 1


                          1. EXISTING ELAN TECHNOLOGY


[****]


                          2. EXCLUDED ELAN TECHNOLOGY

[****]


   
**** REPRESENTS MATERIAL REDACTED PURSUANT TO A REQUEST FOR CONFIDENTIAL
TREATMENT PURSUANT TO RULE 24b-2 UNDER THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.
    













<PAGE>   36


                                   SCHEDULE 2

[****]

(as may be amended with mutual agreement of all the Parties in writing from
time to time)

**** REPRESENTS MATERIAL REACTED PURSUANT TO A REQUEST
FOR CONFIDENTIAL TREATMENT PURSUANT TO RULE 24b-2 UNDER
THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED.





















<PAGE>   37


                                   SCHEDULE 3

                  MAJOR COUNTRIES OUTSIDE OF THE UNITED STATES


[****]


**** REPRESENTS MATERIAL REACTED PURSUANT TO A REQUEST
FOR CONFIDENTIAL TREATMENT PURSUANT TO RULE 24b-2 UNDER
THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED.















<PAGE>   38


                                  SCHEDULE 4
 
   
                             THE MAYNOOTH AGREEMENT
    





     












<PAGE>   39
             PROPOSAL CONCERNING THE EXPLOITATION OF INTELLECTUAL
                               PROPERTY RIGHTS
 

PARTIES:

This agreement is made and is effective this 25th day of March 1996 by and
between Elan Corporation Plc (hereinafter THE COMPANY), its successors and
assigns of Monksland, Athlone, County Westmeath, Ireland and Maynooth
University Enterprise Development Limited, c/o St. Patrick's College, Maynooth,
County Kildare, Ireland (hereinafter THE COLLEGE).

PROJECT

"Evaluation of Biodegradable Microparticles as a delivery system for an
Accelular Pertussis Vaccine"

OWNERSHIP OF INTELLECTUAL PROPERTY RIGHTS:

With respect to inventions and know-how made wholly or in part by personnel at
The Department of Biology, North Campus, St. Patrick's College, Maynooth,
relating to this project, THE COMPANY and THE COLLEGE agree to the following:

         THE COMPANY will file, prosecute and maintain patent applications in
         territories where it shall deem appropriate.  THE COLLEGE shall have
         the right to file, prosecute and maintain, at its own expense, patent
         applications in additional territories where appropriate.

         Patentable inventions and other know-how resulting from the project
         shall be assigned to THE COMPANY.

         In the event of commercial exploitation of a patentable invention, THE
         COMPANY and THE COLLEGE will negotiate an appropriate compensation to
         THE COLLEGE not to exceed a value of 2% of the net sales income earned
         by THE COMPANY in the case of a product resulting from a product
         patent claim or in the case of a product resulting from a process
         patent claim not to exceed 1% of the net sales income earned by THE
         COMPANY.  The compensation shall depend, inter alia, upon the
         contribution by THE COLLEGE to the patentable invention.

         DEFINITION:

         NET SALES shall mean the gross receipts, royalties, fees or other
         valuable consideration of any kind received or credited to the benefit
         of THE COMPANY for sale of the product/process exclusive of taxes and
         less any allowances for returned goods or retroactive price reductions
         and transport or insurance costs and other directly sales related
         charges.

The parties shall negotiate and conclude an agreement to reflect the foregoing
when it becomes appropriate to do so.

         For and on behalf of                  For and on behalf of




         /s/ Ken McVey                         /s/ Patrick Dalton
         _____________________                 ______________________________
         Elan Corporation, Plc.                Maynooth University Enterprise
                                               Development Limited.


         Date:  25-3-96                        Date:  28/3/96










<PAGE>   1
                                                                   EXHIBIT 10.20
                                      CONFIDENTIAL TREATMENT HAS BEEN SOUGHT FOR
                                 PORTIONS OF THIS EXHIBIT PURSUANT TO RULE 24b-2
                                    UNDER THE SECURITIES ACT OF 1934, AS AMENDED


THIS AGREEMENT is made the 22nd day of January 1998


BY AND BETWEEN


ORASOMAL TECHNOLOGIES, INC.

A Delaware corporation of 900 North Shore Drive, Lake Buff, Illinois 60044,
United States of America


AND


ENDOREX VACCINE DELIVERY TECHNOLOGIES, INC.

A Delaware company, of 900 North Shore Drive, Lake Buff, Illinois 60044,
United States of America


AND


ENDOREX CORP.

A Delaware company, of 900 North Shore Drive, Lake Buff, Illinois 60044,
United States of America

LICENSE AGREEMENT
<PAGE>   2
                                TABLE OF CONTENTS

Clause No.  Clause                                                      Page No.

1.          DEFINITIONS.....................................................1
2.          GRANT OF RIGHTS.................................................7
3.          IMPROVEMENTS....................................................9
4.          INTELLECTUAL PROPERTY RIGHTS...................................10
5.          EXPLOITATION OF LICENSED TECHNOLOGY............................10
6.          FINANCIAL PROVISIONS...........................................11
7.          RIGHT OF AUDIT AND INSPECTION..................................12
8.          PATENTS........................................................13
9.          CONFIDENTIAL INFORMATION.......................................17
10.         TRADEMARKS.....................................................19
11.         TERM AND TERMINATION...........................................21
12.         WARRANTIES/INDEMNITIES.........................................22
13.         INSURANCE......................................................24
14.         IMPOSSIBILITY OF PERFORMANCE - FORCE MAJEURE...................25
15.         SETTLEMENT OF DISPUTES; PROPER LAW.............................25
16.         ASSIGNMENT.....................................................26
17.         NOTICES........................................................26
18.         MISCELLANEOUS CLAUSES..........................................27


                                        i
<PAGE>   3
WHEREAS

A.       Orasomal has proprietary know-how and expertise relating, inter alia,
         to immunology and is knowledgeable in the discovery, research,
         development, manufacture and marketing of pharmaceutical formulations
         capable of delivering drugs, including oral or mucosal Vaccine
         delivery. Orasomal owns or has licensed the Orasomal Technology.
         Orasomal also owns and uses certain trademarks in connection with the
         manufacture, marketing and sale of such compounds, including the
         Orasomal Trademarks.

B.       Elan is knowledgeable in the discovery, research, development,
         manufacture and marketing of pharmaceutical formulations capable of
         delivering drugs, including oral or mucosal Vaccine delivery. Elan owns
         or has licensed the Elan Technology. Elan also owns and uses certain
         trademarks in connection with the manufacture, marketing and sale of
         such compounds, including the Elan Trademarks.

C.       Elan and Endorex have agreed to co-operate in the establishment and
         management of the Company, the business of which will be to research
         and develop certain Products incorporating the technologies developed
         and/or to be developed by Elan and Orasomal and to commercialize such
         Products throughout the world.

D.       Simultaneously herewith, Elan, Endorex and Orasomal are entering into
         the Development Agreement for the purpose of recording the terms and
         conditions of the joint venture and of regulating their relationship
         with each other and certain aspects of the affairs of and their
         dealings with the Company.

E.       Under the Development Agreement, the Company shall own all rights in
         technology developed pursuant to certain Research and Development
         Programs being conducted or to be conducted by the Company or by
         Orasomal, Elan or an Independent Third Party on behalf of the Company,
         including the Company Program Technology, the Orasomal Program
         Technology and the Elan Program Technology.

F.       The Company desires to enter into this Agreement with Orasomal so as to
         (a) permit the Company to utilise the Orasomal Patents, the Orasomal
         Know-How and the Orasomal Trademarks in the research, development,
         manufacture, distribution and sale of the Products in the Field and (b)
         to permit Orasomal to utilize the Orasomal Program Technology, the Elan
         Program Technology and the Company Program Technology in connection
         with (i) Orasomal's research and development work on behalf of the
         Company and (ii) Orasomal's manufacturing and supplying the Company or
         its designee(s) with the Products and other components.

G.       Simultaneously herewith, the Company and Elan are entering into a
         similar license agreement relating to the Company's use of the Elan
         Patents, the Elan Know-How and the Elan Trademarks and Orasomal's use
         of the Orasomal Program Technology, the Elan Program Technology and the
         Company Program Technology.

NOW IT IS HEREBY AGREED AS FOLLOWS:

1.       DEFINITIONS

1.1.     In this present Agreement, including the Recitals, Schedules and
         Appendices, the following definitions shall prevail unless the context
         otherwise requires:


                                       1
<PAGE>   4
"ACQUIRED"                 means a transfer or license of a Patent, Know-How or
                           other forms of Intellectual Property Rights or
                           information from an Independent Third Party to Elan
                           or Orasomal, as the case may be, to the extent to
                           which there are no obligations or restrictions (such
                           as confidentiality) in respect of that information
                           which prohibit disclosure to or use by the Company;

"AFFILIATE"                means any corporation or entity other than the
                           Company controlling, controlled or under the common
                           control of Elan, Orasomal or the Company as the case
                           may be. For the purpose of this definition "control"
                           shall mean direct or indirect ownership of fifty
                           percent (50%) or more of the stock or shares entitled
                           to vote for the election of directors;

"AGREEMENT"                means this agreement (which expression shall be
                           deemed to include the Recitals, the Schedules and
                           Appendices hereto);

"BUSINESS PLAN"            means a plan for the business of the Company to be 
                           reasonably agreed to by Elan, Orasomal, Endorex and
                           the Company prior to signing this Agreement or as
                           soon thereafter as is practicable and in any event
                           within thirty (30) days of signing this Agreement;

"CLOSING DATE"             means January 22, 1998;

"COMPANY"                  means Endorex Vaccine Delivery Technologies, Inc;

"COMPANY PROGRAM
PATENTS"                   means the inventions and underlying Patents that
                           constitute the Company Program Technology;

"COMPANY PROGRAM
TECHNOLOGY"                shall have the meaning assigned to it in the
                           Development Agreement;

"DEVELOPMENT
AGREEMENT"                 means the Joint Development & Operating Agreement of
                           even date entered into between Orasomal, Elan, EIS,
                           Endorex and the Company;

"EFFECTIVE DATE"           means December 31, 1997;

"ELAN"                     means Elan Corporation, plc (Elan will be acting
                           through its division Elan Pharmaceutical
                           Technologies);

"ELAN EXCLUDED
TECHNOLOGY"                has the meaning set forth in Schedule 1;

"ELAN LICENSE
AGREEMENT"                 means the license agreement of even date herewith
                           entered into between the Company and Elan;


                                       2
<PAGE>   5
"ELAN KNOW-HOW"            means Elan's drug delivery Know-How (including oral 
                           or mucosal Vaccine delivery Know-How) and Know-How
                           relating to oral or mucosal Vaccines, other than the
                           Elan Program Know-How and the Elan Excluded
                           Technology;

"ELAN PATENTS"             means Elan's drug delivery inventions and underlying 
                           Patents (including oral or mucosal Vaccine delivery
                           inventions) and inventions and underlying Patents
                           relating to oral or mucosal Vaccines, other than the
                           Elan Program Patents and the Elan Excluded
                           Technology;

"ELAN PROGRAM
PATENTS"                   means the inventions and underlying Patents that
                           constitute Elan Program Technology;

"ELAN PROGRAM
TECHNOLOGY"                will have the meaning assigned to it in the
                           Development Agreement;

"ELAN TECHNOLOGY"          means the Elan Patents and/or the Elan Know-How 
                           (which exclude the Elan Excluded Technology). The
                           primary examples of the Elan Technology existing as
                           of the Effective Date are set forth on Schedule 1 to
                           the Elan License Agreement; for the avoidance of
                           doubt the Parties confirm that the said list is not
                           necessarily exhaustive. The Elan Technology also
                           includes the inventions and know how that are the
                           subject of the Maynooth Agreement or any agreement
                           with Maynooth University Enterprise Development
                           Limited envisaged by the Maynooth Agreement. For the
                           avoidance of doubt, Elan Technology shall exclude
                           Patents and Know How [****] or [****] including, but
                           not limited to, [****];

"ELAN TRADEMARKS"          means, depending on the context, one or more of the 
                           trademarks owned by, Acquired by, assigned or
                           licensed to Elan which are relevant to the Elan
                           Technology or the Products;

"ENDOREX"                  means Endorex Corp.;

"ESTABLISHMENT LICENSE
APPLICATION"               shall have the meaning given to such term in Title 21
                           CFR Section 600 et seq.;

"FDA"                      means the United States Food and Drug Administration
                           or any successors or agency the approval of which is
                           necessary to market a product in the United States of
                           America or any other relevant regulatory authority
                           the approval of which is necessary to market a
                           product in any other country of the Territory;

"FIELD"                    shall mean the [****];

- ----------
**** REPRESENTS MATERIAL REDACTED PURSUANT TO A REQUEST FOR CONFIDENTIAL
TREATMENT PURSUANT TO RULE 24b-2 UNDER THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.


                                       3
<PAGE>   6
"FIRST RIGHT OF
NEGOTIATION"               shall have the meaning assigned to such term in 
                           Clause 9.5. of the Development Agreement;

"IMPROVEMENTS"             means inventions, discoveries, developments and
                           indications relating to (A) the Orasomal Technology
                           that can usefully be applied to the Field, and (B)
                           which were first reduced to practice during the Term
                           by Orasomal but shall for the avoidance of doubt
                           exclude Program Technology;

"INDEPENDENT THIRD
PARTY"                     means any person other than the Company, Elan, 
                           Endorex, Orasomal or any of their respective
                           Affiliates;

"IN-MARKET"                means [****] (or where applicable by [****]) to an 
                           [****] such as a [****] and shall exclude [****];

"INTELLECTUAL PROPERTY
RIGHTS"                    means proprietary rights in Patents, Know-How, 
                           registered and unregistered designs, copyrights,
                           trademarks, trade dress, and other like legal rights
                           for the protection of intellectual property;

"INVESTIGATIONAL NEW
DRUG APPLICATION"          shall have the same meaning as understood in the MIT 
                           Agreement;

"KNOW-HOW"                 means all trade secrets, confidential scientific,
                           technical and medical information and expertise,
                           technical data and marketing information, studies and
                           data from time to time developed, produced by or on
                           behalf of Elan, Orasomal or the Company, as the case
                           may be, whether before the Effective Date or during
                           the Term including, but not limited to, unpatented
                           inventions, discoveries, theories, plans, ideas
                           (whether or not reduced to practice) relating to the
                           research and development, manufacture, registration
                           for marketing, use or sale of the Product,
                           toxicological, pharmacological, analytical and
                           clinical data, bioavailability studies, product forms
                           and formulations, control assays and specifications,
                           methods of preparation and stability data;

"MAJOR COUNTRY"            means those countries of the Territory set forth in 
                           Schedule 2;

"MANAGEMENT
COMMITTEE"                 means the management committee appointed by the 
                           directors of the Company pursuant to the Development
                           Agreement;

"MAYNOOTH
AGREEMENT"                 means that certain Proposal Concerning the 
                           Exploitation of Intellectual Property Rights by and
                           between Elan and Maynooth University 

- ----------
**** REPRESENTS MATERIAL REDACTED PURSUANT TO A REQUEST FOR CONFIDENTIAL
TREATMENT PURSUANT TO RULE 24b-2 UNDER THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.


                                       4
<PAGE>   7
                           Enterprise Development Limited dated March 25, 1996
                           attached as Schedule 4 to the Elan License Agreement;

"MIT"                      means the Massachusetts Institute of Technology;

"MIT AGREEMENT"            means that certain Patent License Agreement by and 
                           between Orasomal and the Massachusetts Institute of
                           Technology dated December 16, 1996 attached as
                           Schedule 3;

"MIT PATENTS"              means the Patents licensed by the Massachusetts 
                           Institute of Technology pursuant to the MIT
                           Agreement;

"MIT PATENTED
PRODUCT"                   means any product or part thereof which: (a) is 
                           covered in whole or in part by an issued, unexpired
                           claim in the MIT Patents in the country in which any
                           such product or part thereof is made, used or sold;
                           or (b) is manufactured by using a process or is
                           employed to practice a process which is covered in
                           whole or in part by an issued, unexpired claim in the
                           MIT Patents in the country in which any MIT Patented
                           Process is used or in which such product or part
                           thereof is used or sold;

"MIT PATENTED
PROCESS"                   means any process which is covered in whole or in 
                           part by an issued, unexpired claim or a pending claim
                           contained in the MIT Patents;

"NET SALES"                means [****];

"ORASOMAL"                 means Orasomal Technologies Inc.;

"ORASOMAL KNOW-
HOW"                       means Orasomal's drug delivery Know-How (including 
                           oral or mucosal Vaccine delivery Know-How) and
                           Know-How relating to oral or mucosal Vaccines, other
                           than Orasomal Program Know-How;

"ORASOMAL PATENTS"         means Orasomal's drug delivery inventions and 
                           underlying Patents (including oral or mucosal Vaccine
                           delivery inventions) and inventions and underlying
                           Patents relating to oral or mucosal Vaccines, other
                           than Orasomal Program Technology. The Orasomal
                           Patents include the MIT Patents and those listed on
                           Schedule 1;

"ORASOMAL PROGRAM
PATENTS"                   means the inventions and underlying Patents that 
                           constitute Orasomal Program Technology;

"ORASOMAL PROGRAM
TECHNOLOGY"                shall have the meaning assigned to it in the 
                           Development Agreement;

- ----------
**** REPRESENTS MATERIAL REDACTED PURSUANT TO A REQUEST FOR CONFIDENTIAL
TREATMENT PURSUANT TO RULE 24b-2 UNDER THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.


                                       5
<PAGE>   8
"ORASOMAL
TECHNOLOGY"                means the [****] and/or the [****]. The Orasomal 
                           Technology also includes [****]. For the avoidance of
                           doubt, Orasomal Technology shall exclude [****],
                           including [****];

"ORASOMAL
TRADEMARKS"                means, depending on the context, one or more of the 
                           trademarks and any other relevant trademark owned by,
                           Acquired by, assigned or licensed to Orasomal which
                           are relevant to the Orasomal Technology or the
                           Products;

"PARTIES"                  means Orasomal, the Company and Endorex for the 
                           purposes of Clause 2.9. and Clause 12 only;

"PATENTS"                  means all and any patents and any applications 
                           therefor in the Territory (including any and all
                           divisions, continuations, continuations-in-part,
                           extensions, additions or reissues thereto or
                           thereof);

"PERSON"                   means an individual, partnership, corporation, 
                           limited liability company, business trust, joint
                           stock company, trust, unincorporated association,
                           joint venture, or other entity of whatever nature;

"PLA"                      means the Product License Approval ,or its 
                           equivalent, as such term is understood by the FDA;

"PRODUCT"                  means any [****];

"PRODUCT LICENSE
APPLICATION"               shall have the same meaning as understood in the MIT 
                           Agreement;

"PROGRAM
TECHNOLOGY"                has the meaning assigned to it in the Development 
                           Agreement;

"RELEVANT EVENT"           has the meaning set forth in Clause 11.3.1;

"RESEARCH AND DEVELOPMENT
PROGRAM"                   means depending on the context, one or more programs 
                           of research and development work being conducted or
                           to be conducted by, inter alia, Orasomal and Elan for
                           and on behalf of the Company which have been devised
                           by the Research Committee and approved by the
                           Management Committee;

"TECHNOLOGIES"             means collectively, the Orasomal Technology together 
                           with the Elan Technology;

"TERM"                     has the meaning set forth in Clause 11.1;

   
"TERRITORY"                means the world;
    

- ----------
**** REPRESENTS MATERIAL REDACTED PURSUANT TO A REQUEST FOR CONFIDENTIAL
TREATMENT PURSUANT TO RULE 24b-2 UNDER THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.


                                       6
<PAGE>   9
"THIRD PARTY
TECHNOLOGY"                has the meaning set forth in Clause 9.5. of the 
                           Development Agreement;

"VACCINES"                 means a biologically or synthetically derived 
                           substance administered to [****]; and

"UNITED STATES DOLLAR"
AND "US$"                  means the lawful currency for the time being of the 
                           United States of America.

1.2.     Words importing the singular shall include the plural and vice versa.

1.3.     Unless the context otherwise requires, reference to a recital, article,
         paragraph, provision, clause or schedule is to a recital, article,
         paragraph, provision, clause or schedule of or to this Agreement.

1.4.     Reference to a statute or statutory provision includes a reference to
         it as from time to time amended, extended or re-enacted.

1.5.     The headings in this Agreement are inserted for convenience only and do
         not affect its construction.

1.6.     Unless the context or subject otherwise requires, references to words
         in one gender include references to the other genders.

1.7.     References to "include" or "including" shall be construed as examples
         only, and in no way be read as limiting.

2.       GRANT OF RIGHTS

2.1.     Subject to the terms of this Agreement, under all of Orasomal's
         existing and future Patents and other Intellectual Property Rights
         covering the Orasomal Technology, Orasomal hereby grants to the Company
         for the Term an exclusive licence to the Orasomal Technology in the
         Field for all research, development, and commercial purposes in the
         Field. All proprietary rights and rights of ownership with respect to
         the Orasomal Technology shall at all times remain solely with Orasomal,
         or where applicable with Orasomal's licensor. The Company shall not
         have any rights to use the Orasomal Technology other than insofar as
         they relate directly to the Field and are expressly granted herein. The
         Company agrees that the MIT Patented Products leased or sold in the
         United States of America shall be manufactured substantially in the
         United States of America. The Company hereby acknowledges that MIT
         reserves the right to practice under the MIT Patents for non-commercial
         research purposes.

2.2.     Subject to any restriction in any licenses or other agreements pursuant
         to which Orasomal licenses any of the Orasomal Trademarks, Orasomal
         hereby grants the Company for the Term of this Agreement a
         non-exclusive, royalty-free, fully paid-up license (or, if applicable,
         sublicense) to use the Orasomal Trademarks which relate to the Orasomal

- ----------
**** REPRESENTS MATERIAL REDACTED PURSUANT TO A REQUEST FOR CONFIDENTIAL
TREATMENT PURSUANT TO RULE 24b-2 UNDER THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.


                                       7
<PAGE>   10
         Technology applicable to the Product, such as an acronym for the
         applicable technology applied to the Product, on the terms set forth in
         Clause 10 upon or in relation to the promotion, marketing, advertising,
         sale or offering for sale of the Products. The Company shall not be
         obliged to use the Orasomal Trademark to identify the Product but at
         Orasomal's request shall be obliged to use the Orasomal Trademark to
         identify the applicable Orasomal Technology embodied in the Product.
         For the avoidance of doubt, the Parties hereby confirm that the Company
         shall not be entitled to a licence to use any trademark owned or
         controlled by Orasomal which identifies a pharmaceutical product.

2.3.     [Intentionally Deleted]

2.4.     Orasomal shall be [****].

2.5.     In addition Orasomal has entered into a preliminary development
         agreement, an evaluation agreement and two material transfer
         arrangements with third parties in relation to the Field, the terms of
         which are subject to confidentiality restrictions. If one or more of
         such preliminary development and evaluation programs are successful,
         Orasomal shall seek the consent of the applicable third party to
         disclose the results of such program to the Company and such results
         shall be deemed Third Party Technology and governed by the provisions
         of Clause 2.9. of this Agreement and Clause 9.5. of the Development
         Agreement.

   
2.6.     Subject to the terms of this Agreement, the Company hereby grants to
         Orasomal for the Term a [****] license to use the Elan Program
         Technology, Orasomal Program Technology and the Company Program
         Technology, and, subject to the terms and conditions of the Elan
         License Agreement, a [*****] to use the Elan Technology
         insofar as is necessary, in each case, solely to permit Orasomal to
         perform its obligations pursuant to this Agreement and the Development
         Agreement for the benefit of the Company, including, without
         limitation, (a) conducting research and development pursuant to the
         Research and Development Programmes, and (b) developing, manufacturing
         and supplying the Products and any other chemical or formulation
         components. All rights of ownership with respect to the Elan Program
         Technology, the Orasomal Program Technology and the Company Program
         Technology shall at all times remain solely with the Company.
    

2.7.     Orasomal is entitled to negotiate a license agreement to exploit the
         Orasomal Program Technology outside the Field in accordance with the
         provisions of Clause 9.3. and 9.8. of the Development Agreement
         pursuant to which the Company may in the case of Clause 9.3. of the
         Development Agreement, and shall in the case of Clause 9.8. of the
         Development Agreement grant Orasomal a licence to use the Orasomal
         Program Technology.

2.8.     The Company shall not be permitted to sublicense any of the rights
         granted to the Company by Orasomal pursuant to this Agreement without
         the prior written consent of Orasomal, which consent will not be
         unreasonably withheld or delayed. However, the Company shall have the
         right to grant a royalty-free sublicense to the Orasomal Technology in
         the Field to Elan to enable Elan to fulfil its obligations pursuant to
         the

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**** REPRESENTS MATERIAL REDACTED PURSUANT TO A REQUEST FOR CONFIDENTIAL
TREATMENT PURSUANT TO RULE 24b-2 UNDER THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.


                                       8
<PAGE>   11
         Elan License Agreement and the Development Agreement. Insofar as the
         obligations owed by the Company to Orasomal are concerned, the Company
         shall remain responsible for all acts and omissions of any sub-
         licensee, including Elan, as if they were by the Company. In the event
         of a termination of this Agreement due to a breach by the Company,
         Orasomal shall have the right but not the obligation to assume any such
         sub-license. Any sublicense granted by the Company to the MIT Patents
         shall contain terms which comply with the provisions of Section 2.5. of
         the MIT Agreement and cannot be for anything of value in lieu of cash
         payments. Notwithstanding the provisions of Clause 9 of this Agreement
         and Clause 19 of the Development Agreement, the Company notes and
         agrees that Orasomal shall be entitled to furnish to MIT (I) a copy of
         this Agreement and (II) a copy of all agreements in which the Company
         grants a sublicense to the MIT Patents (for which purpose, inter alia,
         the Company shall furnish a copy of such sublicense agreement to
         Orasomal promptly after execution).

2.9.     Subject to the other provisions of this Agreement and to the provisions
         of [****] of the Development Agreement, [****] (a) for or on behalf of
         the Company, (b) in relation to [****] for which the Company has
         elected not to [****] or has been unable to [****] after the applicable
         [****] has been exercised by the Company, or (c) with the Company's
         prior written consent.

2.10.    Orasomal shall also provide all reasonable assistance to the Company in
         delivering and enabling the Company to utilize the Company's license to
         the Orasomal Technology.

2.11.    Insofar as the rights licensed to the MIT Patents by MIT to Orasomal
         pursuant to the MIT Agreement are concerned, nothing in this Agreement
         shall be construed to confer any rights upon the Company by
         implication, estoppel or otherwise as to any technology or patent
         rights of MIT or any other entity other than the MIT Patents,
         regardless of whether such patent rights shall be dominant or
         subordinate to any MIT Patents.

2.12.    The Company acknowledges that it is subject to the laws and regulations
         of the United States of America controlling the export of technical
         data, computer software, laboratory prototypes and other commodities
         (including the Arms Export Control Act, as amended and the United
         States Department of Commerce Export Administration Regulations). The
         transfer of such items may require a license from the cognizant agency
         of the United States Government and/or written assurances by the
         Company that the Company shall not export data or commodities to
         certain foreign countries without prior approval of such agency. The
         Company notes and agrees that pursuant to the MIT Agreement, MIT
         neither represents that a license shall not be required nor that, if
         required, it shall be issued.

3.       IMPROVEMENTS

3.1.     Except to the extent prohibited by any undertaking given to any
         Independent Third Party (provided that after the Closing Date each
         Party shall use all commercially reasonably efforts to exclude or
         minimise the extent of any such limitations or restrictions), the
         licenses to the Orasomal Technology granted by Orasomal pursuant to
         Clause 2 of this Agreement shall include the Improvements. If Orasomal
         shall develop any 

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**** REPRESENTS MATERIAL REDACTED PURSUANT TO A REQUEST FOR CONFIDENTIAL
TREATMENT PURSUANT TO RULE 24b-2 UNDER THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.


                                       9
<PAGE>   12
         Improvements during the Term, Orasomal shall communicate to the Company
         such Improvements and shall provide to the Company such rights,
         licenses, information and explanations as the Company may reasonably
         require to be able effectively to utilise the Improvements for the life
         of this Agreement. Such disclosed Improvements shall automatically on
         disclosure to the Company become part of the Orasomal Know-How or
         Orasomal Patents (as the case may be) and shall be subject to the
         provisions of this Agreement. The Company shall not have any right to
         use such Improvements outside the Field.

4.       INTELLECTUAL PROPERTY RIGHTS

4.1.     The respective rights of Elan, the Company and Orasomal to exploit the
         Elan Program Technology, Orasomal Program Technology and the Company
         Program Technology shall be regulated by the provisions of Clause 6 of
         the Development Agreement.

5.       EXPLOITATION OF LICENSED TECHNOLOGY

5.1.     Except as provided for in this Agreement, the Company's obligations to
         exploit the Orasomal Technology shall be regulated by Clause 9 of the
         Development Agreement.

5.2.     The Company shall exert its reasonable efforts [****] consistent with
         the [****] in each [****] determined in a commercially reasonable
         manner and with a view to [****]. The Company will diligently pursue
         the [****], as provided in the Business Plan.

5.3.     The Company will be solely responsible for ensuring that the
         manufacture, promotion, distribution, marketing and sale of the
         Products within each country of the Territory is in strict accordance
         with all the legal and regulatory requirements of each country of the
         Territory.

5.4.     All advertising, promotional materials and marketing costs needed to
         exploit the Products are to be paid for by the Company. Any packaging
         for the Products shall contain information to the effect that the
         Product has been developed by Elan in conjunction with Orasomal and the
         Company and is to be agreed upon by Orasomal in advance. Such
         acknowledgement shall take into consideration regulatory requirements
         and the Company's reasonable commercial requirements. The Company shall
         submit copies of all forms of trade package cartons and labels and
         other printed materials to Orasomal for approval before commercial sale
         of the Product commences. If a change in such materials from that
         initially approved which would require regulatory approval or filing or
         any other material change is proposed, all such package cartons and
         labels and printed materials shall be resubmitted for approval before
         commercial use thereof. It shall be presumed that Orasomal approved of
         such use unless Orasomal provides written notice of disapproval of such
         use to the Company within ten (10) business days of delivery of such
         materials to Orasomal, such approval not to be unreasonably withheld.
         The further consent of Orasomal shall not be required where the format
         and content of such materials is substantively similar as the materials
         previously furnished to and approved by Orasomal.

- ----------
**** REPRESENTS MATERIAL REDACTED PURSUANT TO A REQUEST FOR CONFIDENTIAL
TREATMENT PURSUANT TO RULE 24b-2 UNDER THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.


                                       10
<PAGE>   13
6.       FINANCIAL PROVISIONS

6.1.     In consideration of the rights and licences granted to the Company
         pursuant to this Agreement, the Company shall pay the following amounts
         to Orasomal in the manner and on the dates set forth below [****]:

         6.1.1.   [****];

         6.1.2.   [****].

6.2.     In consideration of the rights and licences granted to the Company
         pursuant to this Agreement , the Company shall [****] of any and all
         [****] received by the Company to Orasomal.

6.3.     In the event that Orasomal shall cease to be a shareholder of the
         Company, the Parties shall negotiate in good faith such amendments to
         this Agreement as are equitable and applicable having regard to the
         fact that Orasomal no longer has any representation on the Board of
         Directors of the Company or the Management Committee (for example the
         royalty provisions and such provisions of the Development Agreement as
         are applicable), provided that such negotiations shall not apply to the
         existence of the Agreement.

6.4.     Payment of royalties shall be made quarterly within forty-five (45)
         days after the expiry of the calendar quarter. The method of payment
         shall be by way of wire transfer to an account specified by Orasomal.
         Each payment made to Orasomal shall be accompanied by a written report,
         prepared and signed by a senior financial officer of the Company. In
         addition the report shall clearly show the Net Sales for the months of
         the calendar quarter for which payment is being made on a country by
         country basis. In the event that no royalty is due to Orasomal for any
         calendar quarter, the senior financial officer shall so report. In
         addition to the written reports accompanying each payment, the Company
         shall notify Orasomal, within thirty (30) days of the end of each
         calendar quarter, of the Net Sales of the Product(s) for that preceding
         quarter on a country by country basis. The Company shall maintain and
         keep clear, detailed, complete, accurate and separate records so:

         6.4.1.   as to enable any royalties on Net Sales of a Product which
                  shall have accrued hereunder to be determined; and

         6.4.2.   that any deductions made in arriving at the Net Sales of a
                  Product can be determined.

6.5.     All payments due hereunder shall be made in United States Dollars.
         Payments due on Net Sales of the Product made in a currency other than
         United States Dollars shall first be calculated in the foreign currency
         and then converted to United States Dollars on the basis of the
         exchange rate in effect for the purchase of United States Dollars with
         such foreign currency quoted in the Wall Street Journal (or comparable
         publication if not quoted in the Wall Street Journal) with respect to
         the currency of the country of origin of 

- ----------
**** REPRESENTS MATERIAL REDACTED PURSUANT TO A REQUEST FOR CONFIDENTIAL
TREATMENT PURSUANT TO RULE 24b-2 UNDER THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.


                                       11
<PAGE>   14
         such payment for the day prior to the date on which the payment by the
         Company is being made.

6.6.     Subject to the provisions of Clauses 6.8. and 6.10. of this Agreement,
         the Company shall pay all royalties at the full rates specified in this
         Clause 6.

6.7.     If, at any time, legal restrictions in the Territory prevent the prompt
         payment of royalties or any portion thereof, the Parties shall meet to
         discuss suitable and reasonable alternative methods of reimbursing
         Orasomal the amount of such running royalties. In the event that the
         Company is prevented from making any payment under this Agreement by
         virtue of the statutes, laws, codes or government regulations of the
         country from which the payment is to be made, then such payments may be
         paid by depositing them in the currency in which they accrue to
         Orasomal's account in a bank acceptable to Orasomal in the country the
         currency of which is involved or as otherwise agreed by the Parties.

6.8.     Orasomal and the Company agree to co-operate in all respects reasonably
         necessary to take advantage of any double taxation agreements or
         similar agreements as may, from time to time, be available.

6.9.     Any taxes payable by Orasomal on any payment made to Orasomal pursuant
         to this Agreement shall be for the account of Orasomal. If so required
         by applicable law any payment made pursuant to this Agreement shall be
         made by the Company after deduction of the appropriate withholding tax
         in which event the Parties shall co-operate to the extent reasonably
         necessary to obtain the appropriate tax credits, as soon as is
         practicable. In the event of a credit, the Company shall forthwith
         forward copies of the credit documentation to Orasomal.

7.       RIGHT OF AUDIT AND INSPECTION


7.1.     On not more than two times in each calendar year, the Company shall
         permit Orasomal or its duly authorised representatives upon reasonable
         notice and at any reasonable time during normal business hours to have
         access to inspect and audit the accounts and records of the Company and
         any other book, record, voucher, receipt or invoice relating to the
         calculation of the royalty payments on Net Sales submitted to Orasomal
         and to the accuracy of the reports which accompanied them. Any such
         inspection of the Company's records shall be at the expense of
         Orasomal, except that if any such inspection reveals a deficiency in
         the amount of the running royalty actually paid to Orasomal hereunder
         in any calendar quarter of [****] or more of the amount of any running
         royalty actually due to Orasomal hereunder, then the expense of such
         inspection shall be borne solely by the Company. Any amount of
         deficiency shall be paid promptly to Orasomal. If such inspection
         reveals a surplus in the amount of running royalty actually paid to
         Orasomal by the Company, Orasomal shall promptly reimburse the Company
         the surplus. The Company shall maintain the foregoing records for a
         period of at least five (5) years following the end of the calendar
         year to which they pertain.

7.2.     In the event of any unresolved dispute regarding any alleged deficiency
         or overpayment of royalty payments hereunder, the matter will be
         referred to an independent firm of 

- ----------
**** REPRESENTS MATERIAL REDACTED PURSUANT TO A REQUEST FOR CONFIDENTIAL
TREATMENT PURSUANT TO RULE 24b-2 UNDER THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.


                                       12
<PAGE>   15
         chartered accountants for a resolution of such dispute mutually
         acceptable to both parties. Any decision by the said firm of chartered
         accountants shall be binding on the Parties.

8.       PATENTS

8.1.     The Company shall permanently mark or otherwise cause Elan or any
         Independent Third Party to permanently mark all Products and/or the
         packaging therefor with such license or patent notices and in such
         manner as Orasomal may reasonably request in writing prior to the sale
         or commercial use thereof.

8.2.     Orasomal shall be obliged to disclose promptly to the Company
         inventions and discoveries made by or on behalf of Orasomal otherwise
         than in connection with the performance of a Research and Development
         Program (which inventions and discoveries shall be regulated by the
         provisions of the Development Agreement), any patentable inventions and
         discoveries within the Orasomal Know-How which relate to the Field as
         well as any Improvements developed by or on behalf of Orasomal.

8.3.     The Parties shall discuss in good faith all material issues relating to
         filing, prosecution and maintenance of Orasomal Patents (insofar as the
         Orasomal Patents are of relevance to the Field), the Orasomal Program
         Patents, any patentable inventions and discoveries within the Orasomal
         Know-How that relate to the Field and any Improvements developed by or
         on behalf of Orasomal (other than pursuant to one or more of the
         Research and Development Programmes). Subject to agreement to the
         contrary the following provisions shall apply:

         8.3.1.   Orasomal [****] shall have the right but shall not be
                  obligated (a) to secure the grant of any patent from
                  applications within the Orasomal Patents that relate to the
                  Field; (b) to file and prosecute patent applications on
                  patentable inventions and discoveries within the Orasomal
                  Know-How that relate to the Field and patentable Improvements
                  developed by or on behalf of Orasomal (other than pursuant to
                  one or more of the Research and Development Programmes); (c)
                  to defend all such applications against Independent Third
                  Party oppositions; and/or (d) to maintain in force any issued
                  letters patent within the Orasomal Patents that relate to the
                  Field (including any letters patent that may issue covering
                  any Improvements). Orasomal shall have the sole right in its
                  reasonable business discretion to control such filing,
                  prosecution, defence and maintenance; provided however, that
                  the Company shall be provided with copies of all documents
                  relating to such filing, prosecution, defence, and maintenance
                  in sufficient time to review such documents and comment
                  thereon prior to filing of such documents.

         8.3.2.   In the event that Orasomal (i) elects that it does not intend
                  to file patent applications on patentable inventions and
                  discoveries within the Orasomal Know-How that relates to the
                  Field or patentable Improvements developed by or on behalf of
                  Orasomal (other than pursuant to one or more of the Research
                  and Development Programmes) in one or more countries in the
                  Territory, (ii) fails to file such an application within a
                  reasonable period of time, or (iii) elects or fails to
                  maintain or prosecute further any such pending application or
                  issued patent 

- ----------
**** REPRESENTS MATERIAL REDACTED PURSUANT TO A REQUEST FOR CONFIDENTIAL
TREATMENT PURSUANT TO RULE 24b-2 UNDER THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.


                                       13
<PAGE>   16
                  then Orasomal shall so notify the Company in writing no less
                  than two (2) months prior to the expiration of any applicable
                  due date or time bar, and after receipt of such notice, the
                  Company shall have the right, but not the obligation, at the
                  Company's sole expense to file and prosecute such patent
                  application(s) in the joint names of the Company and Orasomal,
                  and Orasomal upon written request from the Company shall
                  execute all documents, forms and declarations and to do all
                  things as shall be reasonably necessary to enable the Company
                  to exercise such option and right.

         8.3.3.   In relation to the Orasomal Program Patents, the Company at
                  its expense shall have the right but shall not be obligated
                  (a) to secure the grant of any patent from applications within
                  the Orasomal Program Patents; (b) to file and prosecute patent
                  applications on patentable inventions and discoveries within
                  the Orasomal Program Know-How; (c) to defend all such
                  applications against Independent Third Party oppositions; and
                  (d) to maintain in force any issued letters patent within the
                  Orasomal Program Patents (including any patents that issue on
                  patentable inventions and discoveries within the Orasomal
                  Program Know-How). The Company shall have the right to control
                  such filing, prosecution, defence and maintenance; provided
                  however Elan and Orasomal shall be provided with copies of all
                  documents relating to such filing, prosecution, defence, and
                  maintenance in sufficient time to review such documents and
                  comment thereon prior to filing of such documents.

         8.3.4.   In the event that the Company (i) elects that it does not
                  intend to file patent applications on patentable inventions
                  and discoveries within the Orasomal Program Know-How, (ii)
                  fails to file such an application within a reasonable period
                  of time or, (iii) elects or fails to maintain or prosecute
                  further any such pending application or issued patent then the
                  Company shall so notify Orasomal in writing no less than two
                  (2) months prior to the expiration of any applicable due date
                  or time bar, and after receipt of such notice, Orasomal shall,
                  insofar as it is necessary to enable Orasomal to exploit the
                  Orasomal Program Know-How pursuant to Clauses 2.6. and 2.7. of
                  this Agreement or Clause 6.5. of the Development Agreement,
                  have the right, but not the obligation at Orasomal's sole
                  expense to file and prosecute such patent application(s) in
                  the Company's name and the Company upon written request from
                  Orasomal shall execute all documents, forms and declarations
                  and to do all things as shall be reasonably necessary to
                  enable Orasomal to exercise such option and right. In the
                  event that Orasomal and the Company negotiate a license to
                  enable Orasomal to exploit the Orasomal Program Technology
                  outside the Field pursuant to Clause 6.5. of the Development
                  Agreement, the Parties shall take the patent related
                  expenditures incurred by Orasomal as referred to above into
                  account to the extent they are incurred in relation to the
                  Patents being licensed to Orasomal in determining the royalty
                  payable by Orasomal to the Company. Notwithstanding anything
                  herein to the contrary, the Parties agree that the Company
                  shall own all right, title and interest in such patent
                  applications and any patents that may issue thereon (including
                  any and all divisions, continuations, continuations-in-part,
                  extensions, additions or reissues thereto or thereof). Insofar
                  as any patent filing has application within and outside the
                  Field, the Company and Orasomal will negotiate, in good faith,
                  on the course of action to be taken.


                                       14
<PAGE>   17
         8.3.5.   Orasomal and the Company shall promptly inform the other in
                  writing of any alleged infringement of any Patents within the
                  Orasomal Patents that relate to the Field, the Orasomal
                  Program Patents, the Elan Program Patents or the Company
                  Program Patents or any alleged misappropriation of trade
                  secrets within the Orasomal Know-How that relate to the Field,
                  the Orasomal Program Know-How, the Elan Program Know-How or
                  the Company Program Technology by an Independent Third Party
                  of which it becomes aware and provide the other with any
                  available evidence of such infringement or misappropriation.

                  8.3.5.1. Subject to the provisions of Clause 8.4.1.2, during
                           the Term, the Company shall have the right to bring
                           suit or otherwise take action at its own expense and
                           for its own benefit any such alleged infringements of
                           the Orasomal Patents or misappropriation of the
                           Orasomal Know-How, insofar as such infringements or
                           misappropriation relate to the Field. In relation to
                           the MIT Patents, the Company notes and agrees that
                           MIT shall have the right at its own expense to be
                           represented in any action involving the MIT Patents
                           using counsel of its own choice. In the event that
                           the Company takes such action, the Company shall do
                           so at its own cost and expense. At the Company's
                           request, Orasomal will co-operate with such action
                           insofar as the said action relates to the Field at
                           the Company's sole cost and expense. Any recovery
                           remaining after the deduction by the Company of the
                           reasonable expenses (including attorney's fees and
                           expenses) incurred in relation to such an
                           infringement proceeding shall constitute Net Sales
                           for the purpose of this Agreement and the Elan
                           License Agreement and prior to commencing, or at an
                           early stage in the proceedings, the Company, Elan and
                           Orasomal shall agree upon the royalty that shall be
                           due to each of Elan and Orasomal in respect of such
                           deemed Net Sales. Should the Company decide not to
                           pursue such infringers, within a reasonable period
                           but in any event (i) within sixty (60) days after
                           receiving written notice of such alleged infringement
                           or misappropriation or (ii) ten (10) days before the
                           time limit, if any, set forth in the appropriate laws
                           and regulations for the filing of such actions,
                           whichever comes first, or if such alleged
                           infringement or misappropriation does not relate to
                           the Field, Orasomal may in its discretion initiate
                           such proceedings in its own name, at its expense and
                           for its own benefit, and at Orasomal's request, the
                           Company will co-operate with such action at
                           Orasomal's sole cost and expense. In the alternative,
                           the Parties may agree to institute such proceedings
                           in their joint names and shall reach agreement as to
                           the proportion in which they will share the proceeds
                           of any such proceedings, and the expense of any costs
                           not recovered, or the costs or damages payable to the
                           Independent Third Party. If the infringement of the
                           Orasomal Patents affects the Field as well as other
                           products being developed or commercialised by
                           Orasomal or its commercial partners outside the
                           Field, the Parties shall agree as to the manner in
                           which the proceedings should be instituted and shall
                           reach agreement as to the proportion in which they
                           will share the proceeds of any such proceedings, and
                           the expense of any costs not recovered, or the costs
                           or damages payable to the Independent Third Party.


                                       15
<PAGE>   18
                  8.3.5.2. The provisions of this Clause 8.4.1.2. shall apply in
                           relation to any alleged infringements of the MIT
                           Patents by an Independent Third Party. In the event
                           that the Company brings, or in the event of failure
                           by the Company and Orasomal fails to bring, an
                           infringement action as referred to in Section 7.2 of
                           the MIT Agreement, the Company shall co-operate
                           fully, including if required to enable MIT to bring
                           such action, the furnishing of a power of attorney.
                           The Company will consult with Orasomal and MIT as to
                           any significant actions that the Company proposes to
                           take with respect to same. The Company shall give to
                           MIT all authority (including the right to exclusive
                           control of the defense of any such suit, action or
                           proceeding and the exclusive right to compromise,
                           litigate, settle or otherwise dispose of any such
                           suit, action or proceeding), information and
                           assistance necessary to defend or settle any such
                           suit, action or proceeding, and MIT shall have sole
                           discretion to determine actions to be taken or not
                           taken in connection therewith and the terms of any
                           settlement; provided, however, that MIT shall not
                           have the right to settle any patent infringement
                           litigation as referred to in the MIT Agreement
                           without the prior written consent of Orasomal (not to
                           be unreasonably withheld or delayed) (who shall not
                           furnish such consent without the prior written
                           consent of the Company not to be unreasonably
                           withheld or delayed) in a manner that diminishes the
                           scope or duration of the MIT Patents, which would
                           constitute an amendment of the MIT Agreement, which
                           would adversely affect the compensation or revenues
                           to be derived by the Company pursuant to the MIT
                           Agreement, or which would require a payment by the
                           Company, or would require an admission of wrongdoing
                           by the Company. Except as otherwise agreed to by the
                           parties to the MIT Agreement as part of a cost
                           sharing arrangement (in which case Orasamol shall not
                           enter into such an agreement without the consent of
                           the Company), any recovery realised as a result of
                           such litigation, shall be applied first toward
                           reimbursement of any litigation expenses of Orasomal,
                           the Company and MIT, and then Orasomal shall pay MIT
                           five percent (5%) of the remainder; provided that the
                           monies payable by the Company to Orasomal shall be at
                           least sufficient to enable Orasomal to discharge the
                           sums due to MIT.

   
         8.3.6.   During the Term, the Company shall have the first right but
                  not the obligation to bring suit or otherwise take action
                  against any alleged infringement of the Orasomal Program
                  Patents or the Company Program Patents (and as appears from
                  Clause 8.4.2. of the Elan License Agreement, the Elan Program
                  Patents) or alleged misappropriation of the Orasomal Program
                  Know-How (and as appears from Clause 8.4.2. of the Elan
                  License Agreement, the Elan Program Know-How) within the
                  Field. If any such alleged infringement or misappropriation
                  occurs which gives rise to a cause of action both inside and
                  outside the Field, the Parties shall negotiate, together with
                  Elan, in good faith to determine the cause of action to be
                  taken. In the event that the Company takes such action, the
                  Company shall do so solely at its own cost and expense. At the
                  Company's request, Orasomal will co-operate with any such
                  action at the Company's sole cost and expense. Any recovery
                  remaining after the deduction by the Company of the reasonable
                  expenses (including attorney's fees and expenses) incurred in
                  relation to such an infringement proceeding shall constitute
                  Net Sales for the purpose of this Agreement and the Elan
                  License Agreement and prior to 
    


                                       16
<PAGE>   19
                  commencing, or at an early stage in the proceedings, the
                  Company, Elan and Orasomal shall agree upon the royalty that
                  shall be due to each of Elan and Orasomal in respect of such
                  deemed Net Sales. In the event that the Company decides not to
                  take such action against such infringement or misappropriation
                  or fails to do so within a reasonable period but in any event
                  (i) within sixty (60) days after receiving written notice of
                  such alleged infringement or misappropriation or (ii) ten (10)
                  days before the time limit, if any, set forth in the
                  appropriate laws and regulations for the filing of such
                  actions, whichever comes first, Orasomal may in its discretion
                  initiate such proceedings in its own name regarding the
                  Orasomal Program Technology (or in the Company's name if
                  required by law; provided, however, that Orasomal identifies
                  itself as the real party in interest and does not take any
                  action that would expose the Company to liability of any
                  kind). In the event that Orasomal initiates such action, it
                  shall do so solely at its sole cost and expense and all
                  damages and monetary award recovered in or with respect to
                  such action shall be the property of Orasomal. At Orasomal's
                  request, the Company agrees to co-operate with Orasomal in any
                  such proceeding at Orasomal's sole cost and expense. In the
                  alternative, the Parties may agree to institute such
                  proceedings in their joint names and shall reach agreement as
                  to the proportion in which they will share the proceeds of any
                  such proceedings, and the expense of any costs not recovered,
                  or the costs or damages payable to the Independent Third
                  Party.

8.4.     In the event that a claim or proceedings are brought against the
         Company by an Independent Third Party alleging that the sale,
         distribution or use of the Product in the Territory solely because of
         the Company's use of the Orasomal Technology infringes the intellectual
         property rights of such an Independent Third Party, the Company shall
         promptly advise Orasomal of such threat or suit.

8.5.     Orasomal shall have no liability to the Company whatsoever or howsoever
         arising for any losses incurred by the Company as a result of having to
         cease selling Product or having to defer the launch of selling Product
         as a result of any infringement proceedings.

9.       CONFIDENTIAL INFORMATION

9.1.     The Parties acknowledge that it may be necessary, from time to time, to
         disclose to each other confidential and/or proprietary information,
         including without limitation, the Technologies, Program technologies,
         Improvements and the Patents relating thereto, inventions, works of
         authorship, trade secrets, specifications, designs, data, know-how and
         other information relating to the Field, the MIT Agreement, the
         Maynooth Agreement, the terms of the Definitive Documents, the
         Products, processes and services, or the business of the disclosing
         Party ("Confidential Information").

                  Confidential Information shall be deemed not to include:

                           (i) information that is in the public domain;

                           (ii) information which is made public by the
                  disclosing Party;

                           (iii) information which is independently developed by
                  a Party without the aid or application of the Confidential
                  Information;


                                       17
<PAGE>   20
                           (iv) information that is published or otherwise
                  becomes part of the public domain without any disclosure by a
                  Party, or on the part of a Party's directors, officers,
                  agents, representatives or employees;

                           (v) information that becomes available to a Party on
                  a non-confidential basis, whether directly or indirectly, from
                  a source other than a Party, which source, to the best of the
                  Party's knowledge, did not acquire this information on a
                  confidential basis; or

                           (vi) information which the receiving Party is
                  required to disclose pursuant to:

                                    (A) a valid order of a court or other
                           governmental body or any political subdivision
                           thereof or otherwise required by law; or

                                    (B) other requirement of law; provided that
                           if the receiving Party becomes legally required to
                           disclose any confidential information, the receiving
                           Party shall give the disclosing Party prompt notice
                           of such fact so that the disclosing Party may obtain
                           a protective order or other appropriate remedy
                           concerning any such disclosure. The receiving Party
                           shall fully co-operate with the disclosing Party in
                           connection with the disclosing Party's efforts to
                           obtain any such order or other remedy. If any such
                           order or other remedy does not fully preclude
                           disclosure, the receiving Party shall make such
                           disclosure only to the extent that such disclosure is
                           legally required.

9.2.     Any Confidential Information revealed by a Party to another Party shall
         be used by the receiving Party exclusively for the purposes of
         fulfilling the receiving Party's obligations under this Agreement and
         the Development Agreement and for no other purpose.

9.3.     Each Party agrees to disclose Confidential Information of another Party
         only to those employees, representatives and agents requiring knowledge
         thereof in connection with their duties directly related to the
         fulfilling of the Party's obligations under this Agreement. Each Party
         further agrees to inform all such employees, representatives and agents
         of the terms and provisions of this Agreement and their duties
         hereunder and to obtain their consent hereto as a condition of
         receiving Confidential Information. Each Party agrees that it will
         exercise the same degree of care, but in no event less than a
         reasonable degree, and protection to preserve the proprietary and
         confidential nature of the Confidential Information disclosed by a
         Party, as the receiving Party would exercise to preserve its own
         proprietary and confidential information. Each Party agrees that it
         will, upon request of a Party, return all documents and any copies
         thereof containing Confidential Information belonging to or disclosed
         by, such Party.

9.4.     Notwithstanding the above, each Party may use or disclose confidential
         information disclosed to it by another Party to the extent such use or
         disclosure is reasonably necessary in filing or prosecuting patent
         applications, prosecuting or defending litigation, complying with
         patent applications, prosecuting or defending litigation, complying
         with applicable governmental regulations or otherwise submitting
         information to tax or other governmental authorities, conducting
         clinical trials, or making a permitted sub-license or otherwise
         exercising its rights hereunder, provided that if a Party is required
         to make any such disclosure of the other Party's confidential
         information, other than pursuant to a 


                                       18
<PAGE>   21
         confidentiality agreement, such Party shall inform the other Party,
         allow the other Party to participate in the process and generally limit
         disclosure to the greatest extent possible and seek confidential
         treatment or a protective order.

9.5.     The provisions relating to confidentiality in this Clause 9 shall
         remain in effect during the Term, and for a period of [****] following
         the expiration or earlier termination of this Agreement.

9.6.     The Parties agree that the obligations of this Clause 9 are necessary
         and reasonable in order to protect the Parties' respective businesses,
         and each Party expressly agrees that monetary damages would be
         inadequate to compensate a Party for any breach by the other Party of
         its covenants and agreements set forth herein. Accordingly, the Parties
         agree and acknowledge that any such violation or threatened violation
         will cause irreparable injury to a Party and that, in addition to any
         other remedies that may be available, in law and equity or otherwise,
         any Party shall be entitled to obtain injunctive relief against the
         threatened breach of the provisions of this Clause 9, or a continuation
         of any such breach by the other Party, specific performance and other
         equitable relief to redress such breach together with its damages and
         reasonable counsel fees and expenses to enforce its rights hereunder,
         without the necessity of proving actual or express damages.

10.      TRADEMARKS

10.1.    The Company undertakes that all Products and all materials utilised in
         connection with the provision, marketing, distribution, advertising
         and/or marketing thereof that bear or incorporate the Orasomal
         Trademarks shall be of a consistent and high standard of quality,
         commensurate with the prestige of the Orasomal Trademarks and that its
         use of the Orasomal Trademarks shall conform to such reasonable
         standards as Orasomal shall from time to time specify. The Company
         shall co-operate fully with the reasonable instructions of Orasomal
         with respect to the maintenance of such standards.

10.2.    The Company shall:

         10.2.1.  subject to the agreement of the Company's commercial partner
                  such as a sub-licensee, favourably consider promoting and
                  using the Orasomal Trademarks in each country of the Territory
                  and provide proof of use of the Orasomal Trademarks if
                  requested by Orasomal;

         10.2.2.  use the Orasomal Trademarks strictly in compliance with any
                  applicable trademark and other laws and regulations and to use
                  such legends, markings and notices in connection therewith as
                  are required by law or otherwise reasonably required by
                  Orasomal to protect Orasomal's rights therein;

         10.2.3.  do nothing to mislead the public as to the nature or quality
                  of any Product on which the Orasomal Trademarks are affixed
                  nor use it on advertising or display materials which are
                  unethical, immoral or offensive to good taste;

- ----------
**** REPRESENTS MATERIAL REDACTED PURSUANT TO A REQUEST FOR CONFIDENTIAL
TREATMENT PURSUANT TO RULE 24b-2 UNDER THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.


                                       19
<PAGE>   22
         10.2.4.  at Orasomal's reasonable request, supply samples of the
                  Products and any materials utilized in connection with the
                  distribution, advertising and/or marketing thereof that bear
                  or incorporate the Orasomal Trademarks for inspection by
                  Orasomal;

         10.2.5.  not adopt or seek to register any trademark, design or logo
                  confusingly similar to the Orasomal Trademarks without
                  Orasomal's prior written consent; and

         10.2.6.  promptly notify Orasomal in writing if any alleged
                  infringement or unauthorized use of the Orasomal Trademarks
                  comes to the Company's attention.

10.3.    The Company undertakes to use the Orasomal Trademarks in relation only
         to the Products (or materials for advertising and promotion thereof),
         and in accordance with any reasonable specifications and directions
         given by Orasomal from time to time. In particular, but without
         limitation, the Company agrees to state on the Products or materials
         for the advertising or promotion thereof that the Orasomal Trademarks
         are used under license from Orasomal.

10.4.    The Company shall take no action which could prejudice the validity,
         re-registration or reputation of the Orasomal Trademarks or which could
         impair the reputation, business standing or prestige of Orasomal.

10.5.    Orasomal shall remain the owner of the Orasomal Trademarks and the
         goodwill associated with the same and the Company agrees not to assert
         any ownership interest in the Orasomal Trademarks or the goodwill
         associated therewith. The Company shall own and retain all right,
         title, and interest in and to any trademark or trademarks (other than
         the Orasomal Trademarks and the Elan Trademarks) used in the Territory
         in connection with the sale of the Products.

10.6.    Orasomal shall have the exclusive right to take such action in respect
         of the registration, defence, infringement and maintenance of the
         Orasomal Trademarks as Orasomal in its reasonable business judgement
         deems appropriate. The Company shall provide all such assistance and
         co-operation, including the furnishing of documents and information and
         the execution of registered user documentation or the like, as may be
         required to give effect to any action as may be taken, or required to
         be taken, by Orasomal. In taking any such action, Orasomal shall
         consider the legitimate commercial interests of the Company.

10.7.    New trademarks used in relation to the Elan Program Technology, the
         Orasomal Program Technology, the Company Program Technology, or the
         Products and all registrations thereof and applications therefor shall
         be owned and registered by the Company. New trademarks used in relation
         to the Orasomal Technology and all registrations thereof and
         applications therefor shall be owned and registered by Orasomal and
         shall constitute Orasomal Trademarks.


                                       20
<PAGE>   23
11.      TERM AND TERMINATION

   
11.1.    This Agreement is concluded for a period commencing as of the Effective
         Date and expiring on a Product by Product basis and on a country by
         country basis on the later to occur of:
    

   
         11.1.1.  fifteen (15) years starting from the date of the launch of the
                  Product in the country concerned; and
    

         11.1.2.  the last to expire Patent included in the Orasomal Patents
                  and/or the Orasomal Program Patents and/or the Elan Program
                  Patents and/or the Company Program Patents (the "Term").

11.2.    At the end of the Term, the Company shall have a paid-up non-exclusive
         license to the Orasomal Technology for the Field.

11.3.    For the purpose of this Clause 11.3, a "Relevant Event" is committed by
         Orasomal or the Company if:

                           (i) it commits a material breach of its obligations
                  under this Agreement (and in the case of Orasomal if it or
                  Endorex breaches Clause 2.9. or Clause 12) and fails to remedy
                  it within sixty (60) days of being specifically required in
                  writing to do so by the other Party; provided, however, that
                  if the breaching Party has proposed a course of action to
                  rectify the breach and is acting in good faith to rectify same
                  but has not cured the breach by the sixtieth (60th) day, such
                  rectifying period shall be extended by an amount of time as is
                  reasonably necessary to permit the breach to be rectified; it
                  ceases, wholly or substantially, to carry on its business,
                  other than for the purpose of a reorganization, without the
                  prior written consent of the other Participant (such consent
                  not to be unreasonably withheld);

                           (ii) the voluntary appointment of a liquidator,
                  receiver, administrator, examiner, trustee or similar officer
                  over all or substantially all of its assets under the laws of
                  such Participant's state or country of incorporation; or

                           (iii) an application or petition for bankruptcy,
                  corporate reorganization, composition, administration,
                  examination, arrangement or any other procedure similar to any
                  of the foregoing under the laws of such Participant's state or
                  country of incorporation, is filed, and is not discharged
                  within ninety (90) days.

         11.3.1.  If either Party commits a Relevant Event, the other Party
                  shall have in addition to all other legal and equitable rights
                  and remedies hereunder, the right to terminate this Agreement
                  upon thirty (30) days' written notice; provided, that such
                  written notice be given within sixty (60) days following the
                  date that the other Party becomes aware of the Relevant Event.

11.4.    In the event that the MIT Agreement is terminated, the sublicense to
         the MIT Patents shall automatically terminate.



                                       21
<PAGE>   24
11.5.    Upon exercise of those rights of termination as specified in Clause
         11.1. to Clause 11.3. inclusive or elsewhere within the Agreement, this
         Agreement shall, subject to the other provisions of the Agreement,
         automatically terminate forthwith and be of no further legal force or
         effect.

11.6.    Upon expiration or termination of the Agreement:

         11.6.1.  any sums that were due from the Company to Orasomal on Net
                  Sales in the Territory or in such particular country or
                  countries in the Territory (as the case may be) prior to the
                  expiration or termination of this Agreement as set forth
                  herein shall be paid in full within sixty (60) days of the
                  expiration or termination of this Agreement for the Territory
                  or for such particular country or countries in the Territory
                  (as the case may be);

         11.6.2.  all confidentiality provisions set out herein shall remain in
                  full force and effect;

         11.6.3.  the rights of inspection and audit set out in Clause 7 shall
                  continue in force for a period of one year;

         11.6.4.  except as expressly provided for under Clause 11.6.5. all
                  rights, licenses and sublicenses granted in and pursuant to
                  this Agreement shall cease for the Territory or for such
                  particular country or countries in the Territory (as the case
                  may be). Following such expiration or termination, the Company
                  may not thereafter, except as expressly provided for in Clause
                  11.6.5, use in the Territory or in such particular country or
                  countries in the Territory (as the case may be) (a) any valid
                  and unexpired Orasomal Patents, (b) any Orasomal Know-How that
                  remains confidential or otherwise proprietary to Orasomal,
                  and/or (c) any Orasomal Trademarks; and

         11.6.5.  the Company shall promptly make an accounting to Orasomal of
                  the inventory of the Product which it has in the Territory or
                  for such particular country or countries in the Territory (as
                  the case may be), if any, as of the date of such termination
                  and the Company shall thereafter have the right for a period
                  of six (6) months after said expiration or termination to sell
                  such inventory of the Product in the Territory or in such
                  particular country or countries in the Territory (as the case
                  may be) or, if appropriate and legally permissible, to
                  transport such inventory of Product for sale in another
                  country or countries in the Territory within such six month
                  period; provided that the Net Sales thereof shall be subject
                  to the royalty provisions of Clause 6 and so payable to
                  Orasomal. Thereafter, any remaining inventory of Product shall
                  be disposed of by mutual agreement of the Parties in
                  accordance with regulatory requirements.

12.      WARRANTIES/INDEMNITIES

12.1.    Orasomal and Endorex, severally and not jointly, represent and warrant
         to the Company that to their respective best knowledge, after
         reasonable investigations, (a) Orasomal and Endorex have the right to
         grant the licenses and rights granted herein, (b) Schedule 1 contains a
         summary of the Orasomal Technology existing as of the Effective Date,
         (c) other than the MIT Agreement there are no agreements with any third
         parties that relate to Orasomal Technology existing as of the Effective
         Date, (d) that to the best of their respective knowledge and belief,
         Orasomal is not in breach or threatened breach of the 


                                       22
<PAGE>   25
         MIT Agreement and will in the future not procure a breach and (e) there
         are no agreements with any Independent Third Parties that conflict with
         the rights granted by Orasomal pursuant to this Agreement.

12.2.    Orasomal and Endorex, severally and not jointly, represent and warrant
         to the Company that Orasomal has the sole, exclusive and unencumbered
         right to grant the licenses and rights herein granted to the Company,
         and that Orasomal has not granted any option, license, right or
         interest in or to the Orasomal Technology to any Independent Third
         Party which would conflict with the rights granted by this Agreement.

12.3.    The Company represents and warrants to Orasomal that it has the sole,
         exclusive and unencumbered right to grant the licenses and rights
         herein granted to Orasomal and that it has not granted any option,
         license, right or interest in or to the Orasomal Program Technology,
         the Elan Program Technology or the Company Program Technology to any
         Independent Third Party which would conflict with the rights granted by
         this Agreement.

12.4.    Orasomal and Endorex, severally and not jointly, represent and warrant
         to the Company that to the best of its knowledge, the true inventors of
         the subject matter claimed are named in the Orasomal Patents and all
         such inventors have irrevocably assigned all their rights and interests
         therein to Orasomal.

12.5.    Orasomal and Endorex, severally and not jointly, and the Company on
         the other hand each represent and warrant to and for the benefit for
         each other that the execution of this Agreement by them and the full
         performance and enjoyment of the rights of them under this Agreement
         will not breach the terms and conditions of any license, contract,
         understanding or agreement, whether express, implied, written or oral
         between them and any Independent Third Party.

12.6.    In addition to any other indemnifications provided for herein, Orasomal
         and Endorex, severally and not jointly, shall indemnify and hold
         harmless the Company and its Affiliates and their respective employees,
         agents, partners, officers and directors from and against any claims,
         losses, liabilities or damages (including reasonable attorney's fees
         and expenses) incurred or sustained by the Company arising out of or in
         connection with any breach of any representation, covenant, warranty or
         obligation by Orasomal hereunder.

12.7.    In addition to any other indemnifications provided for herein, the
         Company shall indemnify and hold harmless Orasomal and its Affiliates
         and their respective employees, agents, partners, officers and
         directors from and against any claims, losses, liabilities or damages
         (including reasonable attorney's fees and expenses) incurred or
         sustained by Orasomal arising out of or in connection with any breach
         of any representation, covenant, warranty or obligation by the Company
         hereunder.

         12.7.1.  The Company shall assume the sole and entire responsibility
                  and shall indemnify and save harmless Orasomal from any and
                  all claims, liabilities, expenses, including reasonable
                  attorney's fees, responsibilities and damages by reason of any
                  claim, proceedings, action, liability or injury arising out of
                  any faults of the Product resulting from the transport,
                  packaging, storage, handling, distribution, marketing or sale
                  of the Product by the Company, to the extent that it was
                  caused by the negligence or wrongful acts or omissions on the
                  part of the Company.


                                       23
<PAGE>   26
         12.7.2.  Insofar as the MIT Patents are concerned, the Company shall at
                  all times during the term of the MIT Agreement and thereafter,
                  indemnity, defend and hold MIT, its trustees, directors,
                  officers, employees and affiliates (as such term is understood
                  in the MIT Agreement) and Orasomal, harmless against all
                  claims, proceedings, demands and liabilities of any kind
                  whatsoever, including legal expenses and reasonable attorneys'
                  fees, arising out of the death or injury to any person or
                  persons or out of any damage to property, resulting from the
                  production, manufacture, sale, use, lease, consumption or
                  advertisement of the MIT Patented Product(s) and/or MIT
                  Patented Process or arising from any obligation of the Company
                  as a sublicensee of Orasomal pursuant to the MIT Agreement.

12.8.    As a condition of obtaining an indemnity in the circumstances set out
         above, the Party seeking an indemnity shall:

         12.8.1.  fully and promptly notify the other Party of any claim or
                  proceeding, or threatened claim or proceeding;

         12.8.2.  permit the indemnifying Party to take full care and control of
                  such claim or proceeding;

         12.8.3.  co-operate in the investigation and defence of such claim or
                  proceeding;

         12.8.4.  not compromise or otherwise settle any such claim or
                  proceeding without the prior written consent of the other
                  Party, which consent shall not be unreasonably withheld
                  conditioned or delayed; and

         12.8.5.  take all reasonable steps to mitigate any loss or liability in
                  respect of any such claim or proceeding.

12.9.    NOTWITHSTANDING ANYTHING TO THE CONTRARY IN THIS AGREEMENT, ORASOMAL,
         NEWCO AND MIT (INCLUDING MIT's TRUSTEES, DIRECTORS, OFFICERS, EMPLOYEES
         AND AFFILIATES (as such terms are understood in the MIT Agreement))
         SHALL NOT BE LIABLE TO THE OTHER BY REASON OF ANY REPRESENTATION OR
         WARRANTY, CONDITION OR OTHER TERM OR ANY DUTY OF COMMON LAW, OR UNDER
         THE TERMS OF THIS AGREEMENT, FOR ANY CONSEQUENTIAL, INDIRECT OR
         INCIDENTAL LOSS OR DAMAGE (WHETHER FOR LOSS OF PROFIT OR OTHERWISE) AND
         WHETHER OCCASIONED BY THE NEGLIGENCE OF THE RESPECTIVE PARTIES, THEIR
         EMPLOYEES OR AGENTS OR OTHERWISE.

13.      INSURANCE

13.1.    Orasomal shall maintain comprehensive general liability insurance,
         including product liability insurance on the Products manufactured
         and/or sold by Orasomal in such prudent amount as shall be determined
         by the Management Committee. Orasomal shall provide the Company with a
         certificate from the insurance company verifying the above and
         undertakes to notify the Company directly at least thirty (30) days
         prior to the expiration or termination of such coverage. Orasomal shall
         also provide the Company with a vendor's certificate substantially in a
         form to be agreed between the Parties.


                                       24
<PAGE>   27
13.2.    The Company shall maintain comprehensive general liability insurance,
         including product liability insurance on Products manufactured and/or
         sold by the Company that incorporate intellectual property licensed
         hereunder by Orasomal in such prudent amount as shall be determined by
         the Management Committee. The Company shall provide Orasomal with a
         certificate from the insurance company verifying the above and
         undertakes to notify Orasomal thirty (30) days prior to the expiration
         or termination of such coverage. Insofar as the MIT Patented Products
         are concerned, MIT shall be a named insured under the foregoing
         insurance policy and the limits of liability shall be no less than set
         forth in Section 8.2. of the MIT Agreement. The Company shall deliver
         the appropriate certificates of insurance evidencing such insurance
         policy to Orasomal.

14.      IMPOSSIBILITY OF PERFORMANCE - FORCE MAJEURE

14.1.    Neither Party to this Agreement shall be liable for delay in the
         performance of any of its obligations hereunder if such delay results
         from causes beyond its reasonable control, including, without
         limitation, acts of God, fires, strikes, acts of war, or intervention
         of a government authority, non availability of raw materials, but any
         such delay or failure shall be remedied by such Party as soon as
         practicable.

15.      SETTLEMENT OF DISPUTES; PROPER LAW

15.1.    Subject to the provisions of Clause 15.3, the Parties will attempt in
         good faith to resolve any dispute arising out of or relating to this
         Agreement promptly by negotiation between executives of the Parties,
         failing which the Parties shall invoke the dispute resolution
         provisions set forth in Clause 16 of the Development Agreement.

15.2.    Subject to the provisions of Clause 15.3, this Agreement shall be
         governed by and construed in accordance with the laws of New York and
         subject to the provisions of Clause 15.1, the Parties agree to submit
         to the jurisdiction of the courts of New York for the resolution of
         disputes hereunder, which the Parties have not otherwise agreed should
         be subject to the binding determination of an Expert or Panel, pursuant
         to the terms of this Agreement.

15.3.    The provisions of this Clause 15.3. shall apply to the extent that a
         dispute arises out of or is related to the MIT Agreement, or the
         performance, enforcement, breach or termination thereof and any
         remedies relating thereto:

         15.3.1.  Except for the right of either party to apply to a court of
                  competent jurisdiction for a temporary restraining order, a
                  preliminary injunction, or other equitable relief to preserve
                  the status quo or prevent irreparable harm, any and all
                  claims, disputes or controversies arising under, out of, or in
                  connection with the MIT Agreement, including any dispute
                  relating to patent validity or infringement, which the parties
                  shall be unable to resolve within one hundred twenty (120)
                  days shall be mediated in good faith. The party raising such
                  dispute shall promptly advise the other party of such claim,
                  dispute or controversy in a writing which describes in
                  reasonable detail the nature of such dispute. By not later
                  than five (5) business days after the recipient has received
                  such notice of dispute, each party shall have selected for
                  itself a representative who shall have the authority to bind
                  such party, and shall additionally have advised the other
                  party in writing of the name and title of such representative.
                  By not later than ten (10) business days after the date of
                  such notice of dispute, the party against whom the dispute
                  shall 


                                       25
<PAGE>   28
                  be raised shall select a mediation firm in the Boston area and
                  such representatives shall schedule a date with such firm for
                  a mediation hearing. The parties shall enter into good faith
                  mediation and shall share the costs equally. If the
                  representatives of the parties have not been able to resolve
                  the dispute within fifteen (15) business days after such
                  mediation hearing, then any and all claims, disputes or
                  controversies arising under, out of, or in connection with
                  the MIT Agreement, including any dispute relating to patent
                  validity or infringement, shall be resolved by final and
                  binding arbitration in Boston, Massachusetts under the rules
                  of the American Arbitration Association, or the Patent
                  Arbitration Rules if applicable, then obtaining. The
                  arbitrators shall have no power to add to, subtract from or
                  modify any of the terms or conditions of the MIT Agreement,
                  nor to award punitive damages. Any award rendered in such
                  arbitration may be enforced by either party in either the
                  courts of the Commonwealth of Massachusetts or in the United
                  States District Court for the District of Massachusetts, to
                  whose jurisdiction for such purposes the Company as a
                  sublicensee of Orasomal hereby irrevocably consents and
                  submits.

         15.3.2.  Notwithstanding the foregoing, nothing in this Clause 15.3.
                  shall be construed to waive any rights or timely performance
                  of any obligations existing under the MIT Agreement.

         15.3.3.  All disputes arising out of or related to the MIT Agreement,
                  or the performance, enforcement, breach or termination
                  thereof, and any remedies relating thereto, shall be
                  construed, governed, interpreted and applied in accordance
                  with the laws of the Commonwealth of Massachusetts, United
                  States of America, except that questions affecting the
                  construction and effect of any patent shall be determined by
                  the law of the country in which the patent shall have been
                  granted.

16.      ASSIGNMENT

   
16.1.    This Agreement may not be assigned by either Party without the prior
         written consent of the other, which consent in relation to the proposed
         assignment to an Affiliate of Orasomal or the Company, as the case may
         be, shall not be unreasonably withheld, conditioned or delayed.
    

17.      NOTICES

17.1.    Any notice to be given under this Agreement shall be sent in writing in
         English by registered mail, airmail, reputable courier or recorded
         delivery post, or telecopied (with a confirmation copy promptly sent by
         mail) to:

         -  if to the Company:  Endorex Vaccine Delivery Technologies, Inc.
                                900 North Shore Drive
                                Lake Buff, Illinois  60044
                                Telecopier: 1 847 604 8570
                                Attention: President

            with a copy to:     Brock Fensterstock Silverstein & McAuliffe LLC
                                153 East 53rd Street
                                56th Floor

   
    

                                       26
<PAGE>   29
                                New York, New York  10022
                                Telecopier: 1 212 371 5500
                                Attention: David Robbins

         -  if to Orasomal:     Orasomal Technologies, Inc.
                                900 North Shore Drive
                                Lake Buff, Illinois  60044
                                Telecopier: 1 847 604 8570
                                Attention: President

            with a copy to:     Brobeck Phleger & Harrison LLP
                                1633 Broadway
                                New York, New York  10019
                                Telecopier: 1 212 586 7878
                                Attention: Richard Plumridge

         -  if to Endorex:      Endorex Corp.
                                900 North Shore Drive
                                Lake Buff, Illinois  60044
                                Telecopier: 1 847 604 8570
                                Attention: President

            with a copy to:     Brobeck Phleger & Harrison LLP
                                1633 Broadway
                                New York, New York  10019
                                Telecopier: 1 212 586 7878
                                Attention: Richard Plumridge

or to such other address(es) as may from time to time be notified by any Party
to the others hereunder.

17.2.    Any notice sent by mail shall be deemed to have been delivered within
         seven working days after dispatch, any notice sent by reputable courier
         shall be deemed to have been delivered within two (2) working days
         after dispatch and any notice sent by telecopy shall be deemed to have
         been delivered within twenty four (24) hours of the time of the
         dispatch. Notices of change of address shall be effective upon receipt.

18.      MISCELLANEOUS CLAUSES

18.1.    No waiver of any right under this Agreement shall be deemed effective
         unless contained in a written document signed by the Party charged with
         such waiver, and no waiver of any breach or failure to perform shall be
         deemed to be a waiver of any other breach or failure to perform or of
         any other right arising under this Agreement.

18.2.    If any provision in this Agreement is agreed by the Parties to be, or
         is deemed to be, or becomes invalid, illegal, void or unenforceable
         under any law that is applicable hereto, (i) such provision will be
         deemed amended to conform to applicable laws so as to be valid and
         enforceable or, if it cannot be so amended without materially altering
         the intention of the Parties, it will be deleted, with effect from the
         date of such agreement or such earlier date as the Parties may agree,
         and (ii) the validity, legality and enforceability of the remaining
         provisions of this Agreement shall not be impaired or affected in any
         way.


                                       27
<PAGE>   30
18.3.    The Parties shall use their respective reasonable endeavours to ensure
         that the Parties and any necessary Independent Third Party shall do,
         execute and perform all such further deeds, documents, assurances, acts
         and things as any of the Parties hereto may reasonably require by
         notice in writing to the other Party or such Independent Third Party to
         carry the provisions of this Agreement.

18.4.    This Agreement shall be binding upon and enure to the benefit of the
         Parties hereto, their successors and permitted assigns and
         sub-licensees.

18.5.    No provision of this Agreement shall be construed so as to negate,
         modify or affect in any way the provisions of any other agreement
         between the Parties unless specifically referred to, and solely to the
         extent provided, in any such other agreement. In the event of a
         conflict between the provisions of this Agreement and the provisions of
         the Development Agreement, the terms of the Development Agreement shall
         prevail unless this Agreement specifically provides otherwise.

18.6.    No amendment, modification or addition hereto shall be effective or
         binding on either Party unless set forth in writing and executed by a
         duly authorised representative of each Party.

18.7.    This Agreement may be executed in any number of counterparts, each of
         which when so executed shall be deemed to be an original and all of
         which when taken together shall constitute this Agreement.

18.8.    Each of the Parties undertake to do all things reasonably within its
         power which are necessary or desirable to give effect to the spirit and
         intent of this Agreement.

18.9.    Each of the Parties hereby acknowledges that in entering into this
         Agreement it has not relied on any representation or warranty save as
         expressly set out herein or in any document referred to herein.

18.10.   Nothing contained in this Agreement is intended or is to be construed
         to constitute Orasomal and the Company as partners, or Orasomal as an
         employee of the Company, or the Company as an employee of Orasomal.
         Neither Party hereto shall have any express or implied right or
         authority to assume or create any obligations on behalf of or in the
         name of the other Party or to bind the other Party to any contract,
         agreement or undertaking with any Independent Third Party.

18.11.   The Company shall not use the names or trademarks of MIT or Lincoln
         Laboratory, nor any adaptation thereof, nor the names of any of their
         employees, in any advertising, promotional or sales literature without
         prior written consent obtained from MIT or said employee, in each case,
         except that Licensee may state that it is licensed by MIT under one or
         more of the patents and/or applications comprising the MIT Patents.


                                       28
<PAGE>   31
         IN WITNESS THEREOF the Parties hereto have executed this License
Agreement in duplicate.



                                   SIGNED BY /s/ Michael S. Rosen
                                             -------------------------
                                   For and on behalf of
                                   ORASOMAL TECHNOLOGIES, INC.




                                   SIGNED BY /s/ Michael S. Rosen
                                             -------------------------
                                   For and on behalf of
                                   ENDOREX CORP. (for the purposes of Clause 2.9
                                   and Clause 12 only)




   
                                   SIGNED BY /s/ Michael S. Rosen
                                             -------------------------
                                   For and on behalf of
                                   ENDOREX VACCINE DELIVERY
                                   TECHNOLOGIES, INC.
    


                                       29
<PAGE>   32
                                   SCHEDULE 1



                                     [****]


- ----------
**** REPRESENTS MATERIAL REDACTED PURSUANT TO A REQUEST FOR CONFIDENTIAL
TREATMENT PURSUANT TO RULE 24b-2 UNDER THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.
<PAGE>   33
                                   SCHEDULE 2


                                     [****]


- ----------
**** REPRESENTS MATERIAL REDACTED PURSUANT TO A REQUEST FOR CONFIDENTIAL
TREATMENT PURSUANT TO RULE 24b-2 UNDER THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.
<PAGE>   34
                                   SCHEDULE 3


   
                                 MIT AGREEMENT*
    



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

* Incorporated by reference to the Company's Annual Report on Form 10-KSB, as
amended, for the transition period ended December 31, 1996.
    


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