AGOURON PHARMACEUTICALS INC
10-Q/A, 1995-06-22
PHARMACEUTICAL PREPARATIONS
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<PAGE>
                              UNITED STATES
                      SECURITIES AND EXCHANGE COMMISSION
                          Washington, D.C. 20549

                                   FORM 10-Q/A

            (Amendment No. 2 to the Form 10-Q Filed January 31, 1995)

          (X)    QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE
                            SECURITIES EXCHANGE ACT OF 1934

                  For the quarterly period ended December 31, 1994

                                    OR

          ( )   TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d)
                     OF THE SECURITIES EXCHANGE ACT OF 1934

                         Commission File Number 0-15609

                         AGOURON PHARMACEUTICALS, INC.
             (Exact name of registrant as specified in its charter)


          CALIFORNIA                                  33-0061928
(State or other jurisdiction of         (I.R.S. employer identification no.)
incorporation or organization)


     10350 NORTH TORREY PINES ROAD, LA JOLLA, CALIFORNIA  92037-1020
           (Address and zip code of principal executive offices)

                                (619) 622-3000
                 (Registrant's telephone number, including area code)

                                    NONE
            (Former name, former address and former fiscal year,
                        if changed since last report.)

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

                              Yes __X__  No ____


Indicate the number of shares outstanding of each of the issuer's classes
of common stock, as of the latest practicable date:  Approximately 7,294,000
shares of the Company's Common Stock, no par value, were outstanding as of
January 22, 1995. 





<PAGE>

Item 6.      Exhibits and Reports on Form 8-K:

             a.     Exhibits:

             10.54  Development and License Agreement dated December 1, 1994
                    between Japan Tobacco Inc. and the Company (confidential
                    treatment has been requested for portions of this 
                    agreement pursuant to an application dated January 31, 
                    1995)

             10.55  Third Amendment of Agreement One effective January 15, 
                    1995 between Japan Tobacco Inc. and the Company 
                    (confidential treatment has been requested for portions 
                    of this agreement pursuant to an application dated 
                    January 31, 1995)

             b.     Reports on Form 8-K:

                    None


                                SIGNATURE

     Pursuant to the requirements of the Securities Exchange Act of 1934,
the registrant has duly caused this report to be signed on its behalf by the
undersigned thereunto duly authorized.


                                  AGOURON PHARMACEUTICALS, INC.




Date:  June 21, 1995              /s/ Steven S. Cowell     
                                  -------------------------------------------
                                  Steven S. Cowell
                                  Vice President, Finance and Chief Financial
                                  Officer and Chief Accounting Officer



<PAGE>
                                                               Exhibit 10.54

                  PORTIONS OF THIS DOCUMENT HAVE BEEN OMITTED
                 (DESIGNATED BY AN ASTERIX (*) AND WHITE SPACE)
                         AND FILED SEPARATELY WITH THE
            SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST 
                        FOR CONFIDENTIAL TREATMENT FILED
                       JANUARY 31, 1995; FILE NO. 0-15609




                             SEC CONFIDENTIAL DRAFT



                        DEVELOPMENT AND LICENSE AGREEMENT
                                     BETWEEN


                                JAPAN TOBACCO INC.


                                       AND


                            AGOURON PHARMACEUTICALS, INC.


                                 DECEMBER 1, 1994



























<PAGE>
                              INDEX TO ARTICLES

                                                                     Page No.

     BACKGROUND          

     ARTICLE I                 Definitions          
          Section 1.01         Affiliate          
          Section 1.02         Agouron Exclusive Territories          
          Section 1.03         *          
          Section 1.04         *          
          Section 1.05         *          
          Section 1.06         Combination Product          
          Section 1.07         Compound          
          Section 1.08         Control or Controlled          
          Section 1.09         Development Program          
          Section 1.10         *          
          Section 1.11         *          
          Section 1.12         Dossier          
          Section 1.13         Effective Date          
          Section 1.14         Global Joint Development Committee          
          Section 1.15         Global Joint Marketing Committee          
          Section 1.16         Japan          
          Section 1.17         Joint Venture          
          Section 1.18         *          
          Section 1.19         *          
          Section 1.20         *          
          Section 1.21         *          
          Section 1.22         Major Market Countries          
          Section 1.23         Marketing Company          
          Section 1.24         Net Sales          
          Section 1.25         Patent Rights          
          Section 1.26         Product          
          Section 1.27         "Profit(s)     .     
          Section 1.28         Registration          
          Section 1.29         *
               
          Section 1.30         *
               
          Section 1.31         *
               
          Section 1.32         *
               
          Section 1.33         Territory          
          Section 1.34         Trademark(s)          
          Section 1.35         United States          

     ARTICLE II                Commercial Rights          
          Section 2.01         License Grants          
          Section 2.02         Diligent Efforts to Market          
          Section 2.03         Discontinuance of the Development Program     






<PAGE>
                                INDEX TO ARTICLES
                                     Continued
                                                                     Page No.

     ARTICLE III              Sharing and Protection of Intellectual Property
          Section 3.01        Patents          
          Section 3.02        Infringement of Patents of Third Parties       
          Section 3.03        Trademarks          
          Section 3.04        Information Exchange          
          Section 3.05        Confidentiality          
          Section 3.06        Publication          

     ARTICLE IV               Management Structure of Collaboration          
          Section 4.01        Management Committees          
          Section 4.02        Development and Registration          
          Section 4.03        Marketing          
          Section 4.04        Supply of Compound and Product          

     ARTICLE V                Payments, Development Costs; Premarketing 
                              Expenses and Profit Sharing          
          Section 5.01        Payments          
          Section 5.02        Development Costs          
          Section 5.03        Premarketing Expenses          
          Section 5.04        Profit          
          Section 5.05        General Licensing Terms          

     ARTICLE VI               Research Program          
          Section 6.01        Scope and Conduct of Research Program          

     ARTICLE VII              Term and Termination          
          Section 7.01        Termination for Breach          
          Section 7.02        Termination by Mutual Agreement          
          Section 7.03        Termination Upon Bankruptcy          
          Section 7.04        Disposition of Inventory          
          Section 7.05        Effect of Termination          

     ARTICLE VIII             Warranties, Covenants; Indemnities; Dispute 
                              Resolution; Governmental Approvals; Export
                              Controls          
          Section 8.01        Warranties, Covenants          
          Section 8.02        Indemnities; Insurance          
          Section 8.03        Dispute Resolution          
          Section 8.04        Government Approvals          
          Section 8.05        Export Controls          

     ARTICLE IX               Disclosure of Agreement          
          Section 9.01        Disclosure of Agreement          










<PAGE>
                           INDEX TO ARTICLES
                              Continued             
                                                                     Page No.

     ARTICLE X                 General Provisions          
          Section 10.01        No Implied Licenses          
          Section 10.02        No Waiver          
          Section 10.03        Severability; Ambiguities          
          Section 10.04        Government Acts          
          Section 10.05        Notification of Authorities          
          Section 10.06        No Agency          
          Section 10.07        Captions; Number; Official Language          
          Section 10.08        Force Majeure          
          Section 10.09        Amendment          
          Section 10.10        Applicable Law          
          Section 10.11        Notices          
          Section 10.12        Succession          

                                  APPENDICES

          SCHEDULE 1     *

          SCHEDULE 2     *

          SCHEDULE 3     *

          SCHEDULE 4     *

          EXHIBIT 1      *

          EXHIBIT 2A     Estimate Budget *


          EXHIBIT 2B     Estimated Budget *
     

          EXHIBIT 3      *
     
          ATTACHMENT 1   *

          ATTACHMENT 2   *

          ATTACHMENT 3   *                Specifications

          ATTACHMENT 4   *           Terms/Definitions

          ATTACHMENT 5   *                              Procedures

          ATTACHMENT 6   *
                         Procedures

          ATTACHMENT 7   *                   Terms and Conditions





<PAGE>


     This Development and License Agreement ("Agreement"), dated for 
reference purposes only this 1st day of December 1994, by and between Agouron 
Pharmaceuticals, Inc. ("Agouron"), a California corporation with offices at 
10350 North Torrey Pines Road, La Jolla, California, United States of America 
and Japan Tobacco Inc. ("JT"), a Japanese corporation with offices at 12-62, 
Higashi-Shinagawa 4 chome, Shinagawa-ku, Tokyo 140, Japan.  Agouron and JT 
are sometimes hereinafter referred to as a party (collectively "parties") to 
this Agreement.

                                BACKGROUND

     Agouron and JT are interested in collaborating in the development and 
commercialization of the chemical compound known as AG1343.  When the AG1343 
collaboration has commenced Stage 3 as described below and JT has made the 
provided for $24 million milestone payment to Agouron, *



     NOW THEREFORE, in consideration of the premises and mutual covenants and 
exchange of other considerations set forth herein, the parties agree as 
follows:

                                ARTICLE I
                               Definitions

     When used in this Agreement, each of the following terms shall have the 
meaning set out in this Article I.  All references to Articles, Attachments, 
Sections, Schedules, Exhibits and Appendices shall refer to the Articles, 
Attachments, Sections, Schedules, Exhibits and Appendices of this Agreement, 
all of which are incorporated herein by reference.

     Section 1.01     "Affiliate" means any person, organization or entity 
which is, directly or indirectly, controlling, controlled by, or under common 
control with JT or Agouron, as the case may be.  The term "control" 
(including, with correlative meaning, the terms "controlled by" and "under 
common control with"), as used with respect to any person or entity, means 
the possession, directly or indirectly, of the power to direct, or cause the 
direction of, the management and policies of such person, organization or 
entity, whether through the ownership of voting securities or by contract or 
court order or otherwise.  The ownership of voting securities of a person, 
organization or entity shall not, in and of itself, constitute "control" for 
purposes of this definition, unless said ownership is of a majority of the 
outstanding securities entitled to vote of such a person, organization or 
entity.  Notwithstanding the preceding, the government of Japan shall not be 
considered to be an Affiliate of JT.

     Section 1.02     "Agouron Exclusive Territories" means the United 
States of America, Canada, and Mexico.

     Section 1.03      *                    means (i) the patents and the 
patent applications *                         that are referred to in *      
          
                      (ii) all patents arising from said applications and 
all patents and patent applications based upon or claiming *               
                      or (iii) *
<PAGE>




     Section 1.04      *                  means any know-how, trade secret, 
experimental data, formula, expert opinion, experimental procedure and other 
confidential and/or proprietary information specifically concerning the *





     Section 1.05     *             means all of the countries of *
                 and the *       countries listed in *


     Section 1.06     "Combination Product" means any pharmaceutical product 
in any dosage form which contains, in addition to *


     Section 1.07     "Compound" means the chemical compound known as 
AG1343, whose chemical name is as follows:

     [3S-(3R*, 4aR*, 8aR*, 2'S*, 3'S*)]-2-[2'-hydroxy-3'-phenylthiomethyl-
     4'-aza-5'-oxo-5'-(2''-methyl-3''-hydroxyphenyl)pentyl]-
     decahydroisoquinoline-3-N-t-butyl carboxamide methanesulfonic acid 
     salt

and whose chemical structure is as follows: 

     [CHEMICAL STRUCTURE WOULD NOT CONVERT TO ASCII -- SEE CHEMICAL
         NAME ABOVE FOR A DESCRIPTION OF THE CHEMICAL STRUCTURE]

     Section 1.08     "Control" or "Controlled".means *
                                   without violating the terms of any 
agreement with, or arrangement with, or the rights of any third party.

     Section 1.09     "Development Program".means all normal and customary 
activities necessary for the timely development  of *                      
     including but not limited to *






     Section 1.10     *                               are limited to those 
*
           made in the *


          (a)     being contained in *





<PAGE>

                    and

          (b)     *








     Section 1.11     *                              means any know-how, 
trade secret, experimental data, formula, expert opinion, experimental 
procedure and other confidential and/or proprietary information 
specifically concerning the *


                      which is necessary either (i) for *
                       or (ii) for *


     Section 1.12     "Dossier" means the document which is filed with and 
approved by a government or health authority for purposes of Registration, 
for example, a New Drug Application or a Marketing Authorization Application.

     Section 1.13     "Effective Date" means *

     Section 1.14     "Global Joint Development Committee" has the meaning 
assigned in Section 4.01(b)(i).

     Section 1.15     "Global Joint Marketing Committee" has the meaning 
assigned in Section 4.01(b)(ii).

     Section 1.16     "Japan" means Japan, its territories, possessions and 
protectorates.

     Section 1.17     "Joint Venture" means the joint venture to be formed 
by the parties pursuant to the terms of Section 2.01 of this Agreement.

     Section 1.18     "Joint Venture Exclusive Territories" means all 
countries of the world, except those countries comprising the Agouron 
Exclusive Territories and the JT Exclusive Territories.

     Section 1.19     "JT Exclusive Territories" means Japan and the other 
countries of Asia listed in *

     Section 1.20     *               means any know-how, trade secret, 
experimental data, formula, expert opinion, experimental procedure and other 
confidential and/or proprietary information specifically concerning the *
                                     which was developed or acquired by 
or on behalf of *
which is necessary either *




<PAGE>
     Section 1.21     *


     Section 1.22     "Major Market Countries" means the countries listed in 
Schedule 3 attached to this Agreement. 

     Section 1.23     "Marketing Company" means the company marketing the 
Product in a specific country.

     Section 1.24     "Net Sales" means the gross invoiced sales prices of 
Products, whether in active ingredient form or finished product form, 
realized by either party, their Affiliates and sublicensees from sales to 
non-Affiliated third party purchasers, less, to the extent such amounts are 
included in the invoiced sales price, taxes, shipping costs (including 
freight and insurance), and duties and other governmental charges paid for 
and separately identified on the invoice.  Additional allowances will be 
permitted for (i) cash, trade and/or quantity discounts actually allowed; 
(ii) amounts repaid or credited by reason of rejection or return of goods; 
(iii) volume or formulary discount amounts paid or credited to a wholesaler, 
purchaser, third party payor or other contractee as a result of a contractual 
arrangement specific to a Product; (iv) rebates paid or credited to any 
government or agency (or branch thereof) or to any third party payor, 
administrator or contractee; and (v) discounts mandated by, or granted in 
response to applicable state, provincial or federal law, wholesaler 
chargebacks or retroactive price reductions.  Net Sales shall not be reduced 
for any reserves or allowances for bad debts.  A sale of a Product is deemed 
to occur upon the earliest of invoicing or transfer of title in the Product 
to non-Affiliated third party purchasers.

     Section 1.25     "Patent Rights" means *


     Section 1.26     *               any pharmaceutical product in an *
      or in a *                  which contains the *
       provided that such *
including, without limitation, *

     Section 1.27     "Profit(s)" shall have the meaning which will be set 
forth in Attachment 4.  

     Section 1.28     "Registration" means the official approval by the 
government or health authority in each country of the Territory which is 
required for a Product to be offered for sale in the country concerned, 
including such authorizations as may be required for the production, 
importation, pricing and sale of such Product.

     Section 1.29     *
has the meaning described in *         The beginning date of *

     Section 1.30     *
has the meaning described in *         The beginning date of *            is 
the date described in *

     Section 1.31     *
has the meaning described in *         The beginning date of *        is the 
date described in  *

<PAGE>
     Section 1.32     *
has the meaning described in *         The beginning date of *         is the 
date described in  *

     Section 1.33     "Territory" means the world.

     Section 1.34     "Trademark(s)" means any trademark selected and owned 
by a party and registered by such party, its Affiliate(s) and sublicensee(s) 
in the Territory for use in connection with the marketing of Products.

     Section 1.35     "United States" means the United States of America, 
its territories, possessions and protectorates.

                                 ARTICLE II
                              Commercial Rights

     Section 2.01     License Grants.  To implement the commercialization of 
the Compound and/or Products arising out of the Development Program, the 
parties, as provided below in this Article II, will license the Compound 
and/or Products arising out of the Development Program to *





          (a)     Subject to the provisions of Sections 2.01(d) and 2.01(e), 
JT shall have the exclusive right (with right of sublicense) to use, offer 
for sale, sell and import in or into the JT Exclusive Territories *



          (b)     Subject to the provisions of Sections 2.01(d) and 2.01(e), 
Agouron shall have the exclusive right (with right of sublicense) to use, 
offer for sale, sell and import in or into the Agouron Exclusive Territories 
*


          (c)     The Joint Venture shall have the exclusive right (with 
right of sublicense) to use, offer for sale, sell and import in or into the 
Joint Venture Exclusive Territories *




          (d)     Each party and the Joint Venture shall have the non-
exclusive right (with right of sublicense) to make and/or have made anywhere 
in the *


                                          so as to permit the use, offer 
for sale, sale and import by each party and/or the Joint Venture of the *


          (e)     A party wishing to sublicense the *
                                                        shall give 
the other party notice of its intent to sublicense *                         
by providing the other party with a summary of the proposed license terms and 
<PAGE>
the name of the proposed sublicensee(s).  If prior to the expiration of *
                             the other party does not elect to enter into 
a sublicense for *
                             the notifying party, *
                                                 shall have the right 
to enter into a sublicense *                                               
on terms which are substantially similar to those stated in the summary of 
the proposed license terms.  If a sublicense agreement with a proposed 
sublicensee(s) on terms which are substantially similar to those stated in 
the summary of the proposed license terms is  not  entered  into *
                                                                  
then the party wishing to sublicense  the *                          must 
again comply with all of the terms of this Section, including the giving of a 
new sublicense notice and the expiration of a *

          (f)     Notwithstanding the terms of *             each party shall 
have a paid-up, royalty-free  non-exclusive   right   to  use * 
                                             in the Territory.

          (g)     Except as otherwise provided in this Agreement, each party 
shall have a perpetual paid-up,  royalty-free  non-exclusive  right  (with 
right of sublicense) *
                                                 in the Territory.

          (h)     If a party or the Joint Venture wishes to receive a *




then the parties and/or the Joint Venture shall enter into good faith 
negotiations with regard to the terms of *                If a party or the 
Joint Venture wishes to receive *



                                   then the parties and/or the Joint 
Venture shall discuss the terms of *

          (i)     *




                                                    The development 
and commercialization terms of the *                         will be 
substantially similar to those contained in this Agreement; provided however 
that the *                 described in Sections *
                                                                  
after the end of *                         will be funded by the parties 
as provided elsewhere in this Agreement.  *


          (j)     Notwithstanding anything to the contrary contained in this 
Agreement, each of the parties agrees not to sell the Compound and/or 
Products for other than human pharmaceutical uses without the written 
agreement of the other party.

<PAGE>
          (k)     Each party hereby grants to the other party, its Affiliates 
and sublicensees, and the Joint Venture a non-exclusive right to use the 
granting party's *

Notwithstanding the preceding: * 




                                              each party hereby grants 
to the Joint  Venture  and  its  sublicensees  the *



     Section 2.02     Diligent Efforts to Market.  The parties agree that 
the party having the exclusive license on a Product in a country shall begin 
commercial sales of at least one Product arising out of the Development 
Program in the country no later than one (1) year after the Registration and, 
if appropriate, final pricing approval is obtained for such sales in such 
country, provided that such period shall be extended for as long as diligent 
efforts to begin commercial sales continue.  Such party agrees to use 
diligent efforts to market which are comparable to efforts it uses with other 
products of similar status.  For purposes of this Section 2.02, 
commercialization efforts undertaken by a party's Affiliates and sublicensees 
shall be attributed to the party.  If after sixty (60) days written notice of 
a failure to begin commercial sales for at least one such Product in a 
country in a timely manner, the party having the exclusive license on the 
Product in the country fails to fulfill its obligation under this Section 
2.02 and, notwithstanding anything to the contrary contained in Sections 
2.01(a) or 2.01(b), the other party shall have the right, as the sole and 
exclusive remedy for such failure, to elect to have the license granted to 
the party having the exclusive license on the Product in such country under 
the terms of Sections 2.01(a) or 2.01(b) canceled and converted to a license 
to the Joint Venture pursuant to the terms of Section 2.01(c).  The Joint 
Venture under such license shall have the exclusive right (with right of 
sublicense) to use, offer for sale, sell and import in or into such country 
the Product under applicable Agouron Patent Rights and Development Program 
Patent Rights and using applicable Agouron Technology, JT Technology and 
Development Program Technology; for purposes of this license any use, offer 
for sale, sale and import of the Product in such country will be deemed to 
have occurred in or into Joint Venture Exclusive Territories.  No additional 
consideration shall be due because of the exercise of such election.

     Section 2.03     Discontinuance of the Development Program.  *




                    In the event of the discontinuation of the *
pursuant to the terms of *

     *      Additionally, in such event, *                     shall not 
have any right to receive *




<PAGE>
                           shall be deemed to have made a timely election 
to discontinue the *

                              ARTICLE III
              Sharing and Protection of Intellectual Property

     Section 3.01     Patents.

          (a)     As long  as  any  of  the  parties  have *
parties, unless they agree otherwise, agree to prepare, file, prosecute and 
maintain patent applications  and  patents  containing *


               (i)     The parties agree to jointly determine the most 
           appropriate manner to file the patents to protect the commercial 
           interests of the parties in the *





               (ii)     Notwithstanding the preceding, JT and Agouron shall 
           each be entitled to *

                         provided, however, that a party not otherwise *





          (b)     The parties agree that while *









          (c)     Prior to filing any patent application, the filing party 
will provide the other party with *
           The filing party will also provide the non-filing party with a *
                                                            It is 
the intent of the parties that any patent issuing to the parties hereunder 
shall be of the *



          (d)     Each of the parties will require its respective employees 
to (i) assign all of their rights  and  ownership  in *

          and (ii) to assist (without further compensation (except for 
reimbursement for reasonable and necessary expenses)) a requesting party in 
preparing and prosecuting the application  for  patents  throughout  the *


<PAGE>
          (e)     Unless the parties agree otherwise, *

                                                              The 
parties shall  jointly  determine  the  most  appropriate  manner to prepare, 
file, prosecute  and maintain *
                  Each party, as an undivided joint owner of such compound, 
shall have the *


          (f)     Each party shall promptly notify the other of its knowledge 
of any potential infringement of the Patent Rights by a third party.  The 
parties agree to cooperate in taking commercially reasonable legal actions to 
protect the commercial interests of the parties in the *                    
                     against infringement by third parties in all countries.   
If  within *            following receipt of written notice requesting a 
party to join in an action to protect against such infringement by third 
parties, a party fails to participate in such commercially reasonable action 
by the other party to halt an alleged infringement, the other party shall, *
                                          If both parties wish to 
participate in taking action to protect the commercial interests of the 
parties  in  the *

                                                        Each party 
agrees to render such reasonable assistance as the prosecuting party may 
request.  If the parties are unable to agree whether it is commercially 
reasonable to pursue a third party infringer or other  issue  concerning  the  
action, then *




     Section 3.02     Infringement of Patents of Third Parties.  Each party 
shall use its diligent efforts to avoid infringement of patents of any third 
party in discovering, developing, manufacturing and commercializing the 
Compound or Products.  However, neither party shall be liable to the other 
party if the Compound, intermediates thereof or Products infringe any patent 
of any third party.  If either party becomes aware of any claim or suit by 
any third party for infringement of a patent of such third party in 
connection with the discovery, development, manufacture, use or sale of the 
Compound or Products by a party hereto, such party shall notify the other 
party in writing of such claim or suit within thirty (30) days thereafter.  
Each party agrees to render such reasonable assistance as the other party may 
request in defending any such claim or suit.  The parties shall mutually 
agree to any settlement of any infringement claim or action that would 
require the payment of any royalty to a third party, except that if the 
parties cannot promptly reach agreement they shall appoint an independent 
patent counsel to give an opinion, which will be binding on the parties, as 
to whether the third party patent is valid and, if so, whether it is 
infringed.  If the opinion is that the patent is valid and infringed, the 
developing/marketing party, after consultation with the other party, may 
settle the matter in its sole discretion on such terms as it deems 
appropriate.  If both parties are participating in the development or 
marketing, the parties shall mutually agree to any settlement of any 
infringement claim or action that would require the payment of any royalty to 
a third party; if the parties are unable to mutually agree on the settlement, 
then the issue shall be decided by binding arbitration in accordance with the 
provisions of Section 8.03 
<PAGE>
hereof.  Unless the parties agree otherwise, the costs of defending or 
settling any such claim or action in the Joint Venture Exclusive Territories 
shall be borne by the Joint Venture; costs of defending or settling any such 
claim or action in the JT and Agouron Exclusive Territories shall be a 
deductible expense when calculating Profits.

     Section 3.03     Trademarks.  Either party, its Affiliates and 
sublicensees, if any, shall be  free to  use and  to register  in any 
trademark office  in  the *          any Trademark for use *

                     Notwithstanding the preceding, it is the intent of the 
parties that a single Trademark  be identified  and  developed  for  use  in  
marketing  a *                  wherever possible throughout the *            
The parties agree to *

                                                               and 
to cooperate with each other in reasonable efforts to protect the rights of 
the parties in a Trademark, including notification of any infringement which 
may come to a party's attention and  the  proper  execution  and  filing  of  
appropriate  registered  user  documents.  *





     Section 3.04     Information Exchange.

          (a)     Upon  execution of this  Agreement, and thereafter  on an 
ongoing basis *



                                        each party shall provide *
                                                       
Notwithstanding the foregoing, neither party shall be obligated to disclose 
to the other any information that it is prohibited from disclosing to the 
other, either by reason of a contract with a third party or by law.  In the 
event of such a restriction, the parties shall cooperate and take such 
legally permissible action as may be reasonable to permit such disclosure to 
be made.

          (b)     Each of the parties  shall *            prepare a list 
which reflects, to the best of its knowledge, the current status of any *

        which list shall be submitted to the other party *

                                          The parties, if they so 
elect, may mutually prepare a joint list to satisfy the preceding 
obligations.

     Section 3.05     Confidentiality.  Except as otherwise expressly 
specified in this Agreement and except for the proper exercise of any license 
rights granted or rights reserved under this Agreement, JT and Agouron shall 
keep in confidence and shall each use its best efforts to cause its 
respective Affiliates, employees, directors, agents, consultants, outside 
contractors, clinical investigators and sublicensees, to whom it is permitted 
to disclose information pursuant to the terms of this Agreement, to retain in 
<PAGE>
confidence all confidential and proprietary  information  of   the  other 
 party,  including *
                                                                and/or the 
marketing and business plans of such other party and the Joint Venture, which 
is disclosed to it hereunder.  Without limiting the foregoing, JT and Agouron 
shall each exercise the same degree of diligence and care with respect to the 
above-described information as it exercises with respect to its other 
proprietary information.  Each party represents to the other that it 
maintains policies and procedures designed to prevent the unauthorized 
disclosure of its proprietary data and information.  JT and Agouron shall be 
entitled to disclose the above-described information to consultants, outside 
contractors, clinical investigators and other third parties who are subject 
to confidentiality and use obligations equivalent to those applicable to the 
disclosing party hereunder, and to governmental or other regulatory and/or 
health authorities to the extent that such disclosure is reasonably necessary 
to obtain patents, to obtain authorization or to conduct clinical trials on 
the Compound or Products, to prepare the Dossier and/or otherwise to fulfill 
its obligations pursuant to this Agreement.  The preceding obligations of 
confidentiality shall be waived as to information which the party claiming 
waiver can demonstrate, based on written records:  (i) is in the public 
domain at the time of disclosure hereunder; (ii) comes into the public domain 
through no fault of the party claiming waiver; (iii) was known to the party 
claiming waiver prior to its disclosure under this Agreement, unless such 
information was obtained from the other party on a confidential basis; (iv) 
is disclosed on a non-confidential basis to the party claiming waiver by a 
third party having a lawful right to make such disclosure on a non-
confidential basis; (v) is published with the prior mutual agreement of the 
parties, after having given consideration to appropriate commercial and 
competitive factors; (vi) comes into the public domain through governmental 
publication of a patent application; or (vii) is required to be disclosed to 
file a patent application or to comply with applicable laws and regulations.

     The  obligations  under  this  Section  3.05  shall  survive  to the  
later  of (i) * 
          after the end of the Development Program or (ii) the termination or 
expiration date of the last to expire of any license(s) granted pursuant to 
this Agreement, to the extent the Development Program Technology, Agouron 
Technology or JT Technology is applicable to the practice of grants under 
such license(s) or (iii) the expiration date of the last to expire of any 
patent(s) within the Patent Rights on a Product.

     Section 3.06     Publication.  Agouron and JT each acknowledge the 
other party's interest in publishing certain of its results of the 
Development Program to obtain recognition within the scientific community and 
to advance the state of scientific knowledge.  Both parties also recognize 
their mutual interests in obtaining valid patent protection for the Compound, 
intermediates thereof and Products.  Consequently, either party, its 
employees or consultants wishing to make a publication shall provide the 
other party the opportunity to review the proposed manuscript at least thirty 
(30) days prior to the date of the intended submission for publication and, 
upon either party's written request, shall delay submission for a period (not 
greater than forty-five (45) days from the date of such written request) 
sufficient to provide for the filing of appropriate patent application(s) for 
any patentable subject matter disclosed in such publication.



<PAGE>
                              ARTICLE IV
                  Management Structure of Collaboration

     Section 4.01     Management Committees.

          (a)     The collaborative development and commercialization effort 
for  the *
                                        shall be coordinated and 
overseen by a *




                                                                 
shall meet as necessary.  The meeting *
                              The host party shall promptly distribute 
meeting minutes to the other party.  Each party shall *


          (b)     *


               (i)     *



               (ii)     *



*                                         Both parties shall appoint *
                         authorized representatives *
                                                           and shall notify 
the other party as to the name of the individuals so appointed.  Each party 
may replace its representatives at any time upon written notice to the other 
party.

          (c)     *



















<PAGE>
     Section 4.02     Development and Registration.  JT and Agouron 
acknowledge their mutual intention generally to take a collaborative 
commercially reasonable approach to the timely development of the Compound 
and Products arising out of the Development Program, to the extent possible.  
The parties further acknowledge their mutual willingness to discuss ad hoc 
agreements to establish appropriate mechanisms for such collaborative 
development.  Recognizing the importance of timely initiation of development 
activities, however, JT and Agouron agree to the following basic approach to 
development.

          (a)     *                                   will be formed *
                                       shall be responsible for the *




          (b)     *                                shall meet in regular 
intervals, at least *                 and shall, if necessary *
                     shall have the authority to make * 
                           regarding: *



shall have the authority to *




                                             or at other sites as 
agreed to by the parties.   The host party shall promptly distribute meeting 
minutes to the other party.  *


          (c)     *






                                 Before the commencement of the *
                                       shall agree upon the *

            and other such activities to be conducted in *
                                                      shall review 
and discuss any *
                                      The parties acknowledge that 
while the *                                                             
are designed to *                                                    that 
it will be necessary to *



                                                           To the 
extent possible, the *

Specific information which is required to *
<PAGE>
                                             Each party shall be 
entitled to *
                       If the parties agree, an *




          (d)     *                                         will have full 
responsibility *                                      agrees to conduct in 
good faith all activities necessary  to *



            All aspects of *

          will be determined by *                                          
During this period, *
                                                  will have the 
opportunity to provide its *




          (e)     Notwithstanding the preceding, after *        is completed, 
implementation of *



                                         responsibility to take such 
actions as they deem necessary  to *                                  
including without limitation, *                                   
                     In the *
               the parties will *

                                                           To the extent 
possible,*


          (f)     JT and Agouron shall use reasonable diligence in the 
development and Registration of a Product pursuant to the Development 
Program.  Reasonable diligence shall mean the comparable standard of effort 
used by JT and Agouron, respectively, in the development and Registration of 
their own major products.

          (g)     JT and Agouron shall each use qualified persons in the 
development activities of the Development Program.  Agouron and JT may also 
engage consultants, collaborators, clinical investigators and other research 
institutions, as may be necessary or desirable, to assist them in carrying 
out their responsibilities under the Development Program.

          (h)     JT and Agouron, *                                     shall 
keep each other informed of the progress of the work being performed by them 
pursuant to the *                         This shall include progress reports 
as required by the *

                                                           Agouron 
and JT shall provide each other with such access to each other's *
<PAGE>


          (i)     All work in connection with the development of the Compound 
or Products, to the extent required by applicable laws or regulations, shall 
be conducted in accordance with Good Laboratory Practices, Good Manufacturing 
Practices and Good Clinical Practices.

          (j)     Each party agrees to use diligent efforts in conducting its 
development activities and in responding in a timely manner, but not more 
than *                           to requests from the other party for 
preclinical and clinical results and other information concerning the 
Development Program to enable the other party to comply with regulatory 
requirements for the Development Program.  

          (k)     *                                              for making 
application to the World Health Organization International Non-proprietary 
Name Committee and the U.S. Adopted Names Council to secure a generic name 
for the Compound.

          (l)     *


     Section 4.03     Marketing.

          (a)     *



          (b)     It is the intent of the parties that a single Trademark 
shall be identified and developed  for use  on and  in connection  with *  
              
wherever possible throughout the *

          (c)     *                                  shall be responsible for 
drafting a *
                                                               
which shall, among other things, establish a *
                                      shall also be responsible for *










          (d)     *                           shall meet in regular 
intervals, *
                 to discuss issues related to the *                            
and shall, if necessary, *
                                                        The host 
party shall promptly distribute meeting minutes to the other party.  Each 
party shall *


<PAGE>
          (e)     *                       in each country shall be 
responsible for establishing *



          (f)     Unless prohibited by  law or  regulation,  the *



          (g)     The Marketing Company shall have the right and 
responsibility with respect to responding to inquiries and adverse drug 
reactions relating to the Product.  It is understood that the Marketing 
Company is ultimately responsible for the professional services and health 
authority communications relating to the Product.  Agouron and JT agree that 
they shall refer any severe, serious, alarming or unexpected complaints which 
they receive, whether or not determined to be attributable to the Product, to 
the other party within twenty-four (24) hours by telephone, and in writing 
within three (3) business days of receipt of complaint.  All other complaints 
shall be forwarded to the other party within thirty (30) calendar days of 
receipt of complaint.  Both Agouron and JT shall respond to routine medical 
questions or inquiries directed to them.  Within a reasonable time from the 
effective date of this Agreement, the parties shall provide each other with 
all reasonably necessary information which would enable them to respond 
properly and promptly to any such questions or inquiries.  The parties shall 
use their best efforts to keep such information current.  The parties shall 
confer with respect to responses to anticipated inquiries and questions.

     Section 4.04     Supply of Compound and Product.

          (a)     It is anticipated that timely development of the Compound 
and/or a Product will require the manufacture of *


                         As part of the *

                                        will also continue *
                     shall be responsible for *
                                      after the beginning of *

            shall be treated as *

To the extent possible, *     will make available its *



                         The parties agree to *


provided  however,  that  if  the *





          (b)     All Product is to be manufactured in accordance with the 
specifications to be     *

<PAGE>
          (c)     Each party will grant the other party *

            and will take all such other steps as may be reasonably requested 
by *

                                         in compliance with the *





          (d)     In the event any Product delivered hereunder must be 
recalled because of action by the relevant health authority, the parties 
shall cooperate fully with each other in conducting such recall to the full 
extent necessary to ensure that the recall is effective.

                                  ARTICLE V
                  Payments, Development Costs; Premarketing 
                        Expenses and Profit Sharing

     All of the accounting terms used in this Article V, if identified by the 
use of capitalization of the first letter of each word, shall have the 
meaning expressed in Attachment 4, to be developed during the term of this 
Agreement and attached hereto, which shall also contain details of the 
calculation, accounting and splitting of the Profits. 

     Section 5.01     Payments.

          (a)     * On October 3, 1994, JT paid Agouron the non-refundable 
sum of Two Million Five Hundred Thousand U.S. Dollars (U.S. $2,500,000.00) *


          (b)     *



          (c)     *


                  (i)     *



                  (ii)     *



As described below, *


          (d)     *



          (e)     *


<PAGE>
          (f)     *



     Section 5.02     Development Costs.

          (a)     The  parties  shall *

               incurred in the implementation of the *






The parties must *

                   The budget decision in a *
                                                  If the parties are 
unable to agree *



          (b)     *
                                                          If a 
party *
                              of such *                    shall be *
                                    if any, from *
Notwithstanding the preceding *                       shall not be *

                        The above *              shall not be a *


          (c)     Development Costs shall be the *

          The calculation of Development Costs shall take into consideration 
the following:

                  (i)     *                        shall include, but not be 
           limited to, *



                  (ii)     *

           Such costs shall include, but not be limited to, *




                          To the extent that these *
                          the associated costs shall be *


                  (iii)     *                          shall be allocated to 
            *
            Such costs shall include, but not be limited to, *
<PAGE>

A report of Development Costs shall be prepared showing Development Costs *
             consistent with accounting classifications and methods agreed 
upon by the parties.  The accounting report shall be *
          The calculation of Development Costs shall not include *


          (d)     The parties will establish a process for *                   
Each party shall *                           Development Costs (including 
*

                                       for which it has received a 
proper estimate *                                                        
taking into account the *

          (e)      Each party shall maintain books of account and adequate 
records of *













          (f)     Additional details relating to *
such Development Costs *
                expressed as *



     Section 5.03     Premarketing Expenses.  *



     Section 5.04     Profit.  In partial consideration for the rights 
granted each of the parties in this Agreement, the parties agree as follows:


          (a)   The parties shall *




                                                                 expenses are 
to be determined in accordance with the *

          (b)     Except as the parties otherwise agree, the parties shall *


                                                 pursuant to the terms of *

<PAGE>
                                         expenses are to be determined in 
accordance with the *

          (c)     *



     Section 5.05     General Licensing Terms.

          (a)     A party owing a payment to the other party shall be 
entitled to *




                                         JT and Agouron shall advise 
each other and provide copies of tax receipts for all taxes on profits, 
whether or not deductible from payments of profits.  *


          (b)     With respect to *                                  shall 
refer to the sales price of *


          (c)     *                                               shall be 
made on *
                          from the *                                 by a 
party, its Affiliate or sublicensee or the *









          (d)     *



          (e)     It is the intent of the parties that sales of a Product 
made in each country of the  *          shall be recorded on the books and 
ledgers of the *




          (f)     The parties agree in the future to use their reasonable 
efforts to negotiate any additional licensing terms for the Compound and/or 
Product which may be necessary to clarify the rights and obligations of the 
parties.





<PAGE>
                              ARTICLE VI
                           Research Program

     Section 6.01     Scope and Conduct of Research Program.  Commencing 
within a          *                      after the beginning of *
     the parties will *





Efforts will be made to *
                                    Subject to the parties' mutual 
agreement *                    the terms and conditions under which *



                              ARTICLE VII
                          Term and Termination

     Section 7.01     Termination for Breach.  Either party may, at its 
option, terminate this Agreement for cause in the event the other party shall 
commit a material breach of this Agreement and shall fail to cure such breach 
during the *                                             period (*              
period in the case of any payment default) following receipt of a written 
notice of such breach from the non-breaching party.  After the end of the 
applicable cure period, the party who has the right of termination may 
exercise its termination option by giving the breaching party written notice 
of at least fifteen (15) days of its election to terminate.  Any termination 
of this Agreement shall not release the breaching party from any obligations 
incurred hereunder.

     Section 7.02     Termination by Mutual Agreement.  The parties may at 
any time terminate this Agreement, in part or in its entirety, by mutual 
written agreement.

     Section 7.03     Termination Upon Bankruptcy.  In the event that a party 
is subject to any proceeding under the bankruptcy laws or to the appointment 
of a receiver, trustee or liquidator of its business or substantially all of 
its assets, and such proceeding, if involuntary, is not dismissed or 
discharged  within *                                         
after such proceeding is instituted or upon the liquidation, dissolution, or 
winding up of its business, then this Agreement, at the election of the other 
party, shall be terminated in its entirety for cause upon a notice of at 
least fifteen (15) days in writing to that party from the party who is not 
bankrupt or insolvent.

     Section 7.04     Disposition of Inventory.  In the event of the 
cancellation or termination of any license rights with respect to a Product 
prior to the expiration of this Agreement, inventory of such Product may be 
sold for up to six (6) months after date of termination, provided required 
payments, if any, are paid thereon.

     Section 7.05     Effect of Termination.  The termination of this 
Agreement shall, to the extent not otherwise expressly provided herein, not 
affect the rights and obligations of the parties under this Agreement with 

<PAGE>
respect to (i) the parties' obligations of confidentiality and (ii) the 
rights or obligations of the parties otherwise expressly stated in the 
Agreement to survive the termination of this Agreement.  Upon any termination 
of this Agreement in its entirety because of a breach of the other party, 
neither party waives any rights to any remedies it may have arising out of 
the termination.  In the event of any breach by a party with respect to 
obligations which continue after a termination in its entirety of this 
Agreement, the non-breaching party shall have all remedies available to it as 
if the Agreement were still in effect on the date of such breach.  

                               ARTICLE VIII
            Warranties, Covenants; Indemnities; Dispute Resolution;
                    Governmental Approvals; Export Controls

     Section 8.01     Warranties, Covenants.

          (a)     Each party represents and warrants to the other party that 
it has the legal power, authority and right to enter into this Agreement and 
to perform all of its respective obligations set forth herein, including the 
attachments hereto.

          (b)     Agouron represents and warrants that as of the date of the 
execution of this Agreement the results of the initial in vitro and 
toxicology testing and human clinical study results on AG1343 have been 
accurately and correctly disclosed to JT and that, to Agouron's best 
knowledge, there is no data or information existing which contradicts, 
conflicts or otherwise indicates doubt as to the accuracy or correctness of 
such testing and results.

          (c)     Agouron represents and warrants that as of the date of the 
execution of this Agreement  to the best of its knowledge (including any 
information from its outside patent counsel), it is not aware of (i) any 
claims by third parties that the practice of the Agouron Patent Rights would 
infringe such third parties patent rights or (ii) any publication which would 
render the Agouron Patent Rights unpatentable.

          (d)     Each party represents and warrants that, as of the date of 
the execution of this Agreement, it is not a party to any agreement, 
arrangement or understanding with any third party, including agreements with 
Eli Lilly and Company, which in any way prevents such party from fulfilling 
any of its material obligations under the terms of this Agreement, including 
the attachments hereto.

          (e)     Each party covenants that it will not commit any act or 
fail to take any action which in any significant way would be in conflict 
with its material obligations under this Agreement and the attachments 
hereto.

          (f)     Each party promises to comply in all material respects with 
the terms of the licenses granted to it under this Agreement and with all 
federal, state and local laws, rules and regulations applicable to the 
development, manufacture, distribution, import and export, and sale of 
pharmaceutical products pursuant to this Agreement.

          (g)     EXCEPT AS OTHERWISE EXPRESSLY PROVIDED IN THIS AGREEMENT, 
EACH OF THE PARTIES MAKES NO WARRANTIES, EXPRESSED OR IMPLIED, OF 

<PAGE>
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OF ANY SUBJECT MATTER 
DEFINED BY THE CLAIMS OF THE PATENT RIGHTS, INCLUDING THE COMPOUND.  THE 
PARTIES UNDERSTAND AND AGREE THAT DEVELOPMENT AND COMMERCIALIZATION OF THE 
COMPOUND AND/OR PRODUCT(S) WILL INVOLVE APPROVAL BY REGULATORY AUTHORITIES 
AND THAT NO PARTY IS GUARANTEEING THE SAFETY OR EFFICACY OF THE COMPOUND 
AND/OR PRODUCT(S).

     Section 8.02     Indemnities; Insurance.

          (a)     JT will indemnify and hold harmless Agouron and its 
Affiliates, employees, officers, directors, shareholders and agents (an 
"Agouron Indemnified Party") from and against any and all liabilities, 
losses, damages, costs, or expenses (including reasonable investigative and 
attorneys' fees) which the Agouron Indemnified Party may incur, suffer or be 
required to pay, resulting from or arising in connection with any product 
liability or other claims arising from the use by any person of any Product, 
to the extent such product liability or other claim results from the 
negligent, reckless or intentional misconduct of JT, its Affiliates or 
sublicensees, or their respective employees and agents, or on account of JT's 
failure to fulfill any obligation or undertaking under this Agreement.

          (b)     Agouron will indemnify and hold harmless JT and its 
Affiliates, employees, officers, directors, shareholders and agents (a "JT 
Indemnified Party") from and against any and all liabilities, losses, 
damages, costs, or expenses (including reasonable investigative and 
attorneys' fees) which the JT Indemnified Party may incur, suffer or be 
required to pay, resulting from or arising in connection with any product 
liability or other claims arising from the use by any person of any Product, 
to the extent such product liability or other claim results from the 
negligent, reckless or intentional misconduct of Agouron, its Affiliates or 
sublicensees or their respective employees and agents, or on account of 
Agouron's failure to fulfill any obligation or undertaking under this 
Agreement.

          (c)     To the extent that a product liability or other claim 
results from the negligent, reckless or intentional misconduct of both of the 
parties, their Affiliates, sublicensees, or their respective employees and 
agents, the parties agree to share in an equitable manner such liabilities, 
losses, damages, costs, or expenses in proportion to the relative fault of 
each of the parties, their Affiliates, sublicensees, or their respective 
employees and agents.

          (d)     Unless the parties agree otherwise, all other liabilities, 
losses, damages, costs, or expenses (including reasonable investigative and 
attorneys' fees) under this Section 8.02 relating to or involving the 
Product:  (i) in the *                                                  shall 
be borne by the Joint Venture; and (ii) in the *                               
                      
the Marketing Company, except as provided by the terms of Sections 8.02(a), 
(b) and (c), shall be responsible for such liabilities, losses, damages, 
costs, or expenses and shall indemnify the non-Marketing Company from and 
against any and all liabilities, losses, damages, costs, or expenses 
(including reasonable investigative and attorneys' fees) which the non-
Marketing Company may incur, suffer or be required to pay, resulting from or 
arising in connection with any product liability or other claims arising from 
the use by any person of any Product.  Any payments made by the Marketing 

<PAGE>
Company pursuant to the terms of this Section 8.02(d) shall be a deductible 
expense when calculating Profits.

          (e)     The aforesaid obligations of the indemnifying party shall 
be subject to the indemnified party fulfilling the following obligations:

                  (i)     the indemnified party shall fully cooperate with 
          the indemnifying party in the defense of any claims, actions, etc., 
          which defense shall be controlled by the indemnifying party; 

                  (ii)     the indemnified party shall not, except at its own 
          cost, voluntarily make any payment or incur any expense with 
          respect to any claim or suit without the prior written consent of 
          the indemnifying party, which consent such party shall not be 
          required to give; and

                  (iii)     promptly after receipt by the indemnified party 
          of notice of the commencement of any litigation or threat thereof 
          which relates to or involves the Product, such party shall notify 
          the indemnifying party.

          (f)     The parties and the Joint Venture agree to maintain 
appropriate amounts of product liability insurance coverage.

     Section 8.03     Dispute Resolution.  In the event of any controversy 
or claim arising out of or relating to any provision of this Agreement, the 
parties shall try to settle their differences amicably between themselves.  
Any unresolved disputes arising between the parties relating to, arising out 
of, or in any way connected with this Agreement or any term or condition 
hereof, or the performance by either party of its obligations hereunder, 
whether before or after termination of this Agreement, except as otherwise 
provided in this Agreement, shall be finally resolved by binding arbitration.  
Whenever a party shall decide to institute arbitration proceedings, it shall 
give written notice to that effect to the other party.  The party giving such 
notice shall refrain from instituting the arbitration proceedings for a 
period of sixty (60) days following such notice.  If JT is the party 
initiating the arbitration, the arbitration shall be held in San Diego, 
California, according to the rules of the American Arbitration Association 
("AAA").   If Agouron is the party initiating the arbitration, the 
arbitration shall be held in Tokyo, Japan, according to the rules of the 
Japan Commercial Arbitration Association ("JCAA").  The arbitration shall be 
conducted by a single arbitrator mutually chosen by the parties.   If the 
parties can not agree upon a single arbitrator within fifteen (15) days after 
the institution of the arbitration proceeding, then the arbitration will be
conducted by a panel of three arbitrators appointed in accordance with
applicable AAA or JCAA rules; provided, however, that each party shall,
within thirty (30) days after the institution of the arbitration proceedings,
appoint one arbitrator with the third arbitrator being chosen by the other
two arbitrators.  If only one party appoints an arbitrator, then such
arbitrator shall be entitled to act as the sole arbitrator to resolve the
controversy.  Any arbitration hereunder shall be conducted in the English
language to the maximum extent possible.  All arbitrator(s) eligible to
conduct the arbitration must agree to render their opinion(s) within thirty
(30) days of the final arbitration hearing.  The arbitrator(s) shall have the
authority to grant injunctive relief and specific performance and to allocate 
between the parties the costs of arbitration in such equitable manner as he 
determines; provided, however, that each party shall bear its own costs and 
<PAGE>
attorneys and witness' fees.  Notwithstanding the terms of this Section 8.03 
a party shall also have the right to obtain prior to the arbitrator(s) 
rendering the arbitration decision, provisional remedies including injunctive 
relief or specific performance from a court having jurisdiction thereof.  The 
arbitrator(s) will, upon the request of either party, issue a written opinion 
of the findings of fact and conclusions of law and shall deliver a copy to 
each of the parties.  Decisions of the arbitrator(s) shall be  final and 
binding on all of the parties.  Judgment on the award so rendered may be 
entered in any court having jurisdiction thereof.

     Section 8.04     Government Approvals.  JT and Agouron will obtain any 
government approval(s) required to enable this Agreement to become effective, 
or to enable any payment hereunder to be made, or any other obligation 
hereunder to be observed or performed.  Each party will keep the other 
informed of progress in obtaining any such government approval and will 
cooperate with the other party in any such efforts.

     Section 8.05     Export Controls.  The parties agree to abide by the 
United States laws and regulations governing exports and re-exports of the 
*  
                                                                            
                                                               
or any other technology or software developed or disclosed as a result of 
this Agreement.  The parties acknowledge that any performance under this 
Agreement is subject to any restrictions which may be imposed by the United 
States laws and regulations governing exports and re-exports.  Each party 
agrees to provide the other party with any assistance, including written 
assurances, which may be required by a competent governmental authority and 
by applicable laws and regulations as a precondition for any disclosure of 
technology or software by the other party under the terms of this Agreement.  
The obligations of this Section 8.05 shall survive termination or expiration 
of this Agreement.

                                 ARTICLE IX
                          Disclosure of Agreement

     Section 9.01     Disclosure of Agreement.  Except as agreed to by the 
parties, neither Agouron nor JT shall release any information to any third 
party with respect to any of the terms of this Agreement without the prior 
written consent of the other, which consent shall not unreasonably be 
withheld.  This prohibition includes, but is not limited to, press releases, 
educational and scientific conferences, promotional materials and discussions 
with the media.  If a party determines that it is required by law to release 
information to any third party regarding the terms of this Agreement, it 
shall notify the other party of this fact prior to releasing the information.  
The notice to the other party shall include the text of the information 
proposed for release.  The other party shall have the right to confer with 
the notifying party regarding the necessity for the disclosure and the text 
of the information proposed for release.  Notwithstanding the preceding, JT 
and Agouron shall have the right to disclose the terms of this Agreement to 
persons it proposes to enter into business relationships with, if such 
persons are subject to confidentiality and use obligations equivalent to 
those applicable to the disclosing party hereunder.




<PAGE>
                                  ARTICLE X
                             General Provisions

     Section 10.01     No Implied Licenses.  Only the licenses granted 
pursuant to the express terms of this Agreement shall be of any legal force 
and effect.  No license rights shall be created by implication or estoppel.

     Section 10.02     No Waiver.  Any failure by either party to enforce any 
right which it  may have hereunder in any instance shall not be deemed to 
waive any right which it or the other  party may have in any other instance 
with respect to any provision of this Agreement, including the provision 
which such party has failed to enforce.

     Section 10.03     Severability; Ambiguities.  In the event that any 
provision of this Agreement is judicially determined to be unenforceable, in 
part or whole, the remaining provisions or portions thereof of this Agreement 
shall be valid and binding to the fullest extent possible, and the parties 
shall endeavor to negotiate additional terms, as feasible, in a timely manner 
so as to fully effectuate the original intent of the parties, to the extent 
possible.  Ambiguities, if any, in this Agreement shall not be construed 
against any party, irrespective of which party may be deemed to have authored 
the ambiguous provision.

     Section 10.04     Government Acts.  In the event that any act, 
regulation, directive, or law of a government within any country in the 
Territory, including its departments, 
agencies or courts, should make 
impossible or prohibit, restrain, modify or limit any material act or 
obligation of Agouron or JT under this Agreement, the party, if any, not so 
affected shall have the right, at its option, to suspend or terminate this 
Agreement as to such country in the Territory or to make such modifications 
therein as may be necessary.

     Section 10.05     Notification of Authorities.  After execution of this 
Agreement, to the extent required by law, Agouron, after consultation with 
JT, shall notify the appropriate United States and European authorities about 
the terms of this Agreement and JT, after consultation with Agouron, shall 
notify the appropriate Japanese authorities about the terms of this 
Agreement.  The parties shall keep each other fully advised of the status and 
progress of the notification procedures.

     Section 10.06     No Agency.  Agouron and JT shall have the status of 
independent contractors under this Agreement and nothing in this Agreement 
shall be construed as an authorization of either party to act as an agent of 
the other.

     Section 10.07     Captions; Number; Official Language.  The captions of 
the Articles and Sections of this Agreement are for general information and 
reference only and this Agreement shall not be construed by reference to such 
captions.  Where applicable in this Agreement, the singular includes the 
plural and vice versa.  English shall be the official language of this 
Agreement and any license agreement provided for hereunder and all 
communications between the parties hereto shall be conducted in that 
language.

     Section 10.08     Force Majeure.  Neither party shall be responsible to 
the other party for any failure or delay in performing any of its obligations 
under this Agreement if such failure or delay is caused by any at of God, 
<PAGE>
earthquake, fire, casualty, flood, war, any act, exercise, assertion or 
requirement of governmental authority, epidemic, riot, insurrection, or other 
cause beyond the reasonable control of the affected party, if the affected 
party shall have used its best efforts to avoid such occurrence.  If either 
party believes that the performance of any of its obligations under this 
Agreement will be delayed as a result of any of the reasons stated in this 
Section 10.08, such party shall promptly notify the other party of such delay 
and the cause therefor and shall provide such other party with its estimate 
of when the performance of its obligations will recommence.

     Section 10.09     Amendment.  This Agreement, including the attachments, 
exhibits, schedules and appendices, constitutes the full agreement of the 
parties with respect to the subject matter of this Agreement, and 
incorporates any prior discussions between them with respect to such subject 
matter.  This Agreement, including the attachments hereto, shall not be 
amended, supplemented or otherwise modified except by an instrument in 
writing signed by a duly authorized officer of both parties.

     Section 10.10     Applicable Law.  This Agreement shall be construed, 
and the rights of the parties shall be determined, in accordance with the 
laws of the State of California, and the United States without regard to its 
conflict of law provisions.  

     Section 10.11     Notices.  Any notice required or permitted to be given 
under this Agreement shall be in writing and shall be given in person, 
delivered by recognized overnight delivery service, sent by mail (certified 
or registered or air mail for addresses outside of the continental U.S.) or 
by telefax (or other similar means of electronic communication), whose 
receipt is confirmed by confirming telefax, and addressed, in the case of 
Agouron, to the President and, in the case of JT, to the President at the 
addresses shown at the beginning of this Agreement, or such other person 
and/or address as may have been furnished in writing to the notifying party 
in accordance with the provisions of this Section 10.11.  Except as otherwise 
provided herein, any notice shall be deemed delivered upon the earlier of 
(i) actual receipt, (ii) two (2) business days after delivery to such 
overnight express service, (iii) five (5) business days after deposited in 
the mail, or (iv) the date of receipt of the confirming telefax.

     Section 10.12     Succession.  This Agreement shall be binding upon all 
successors in interest, assigns, trustees and other legal representatives of 
the parties.

     IN WITNESS WHEREOF, the parties hereto have executed this Agreement, in 
duplicate originals, by their respective officers thereunto duly authorized, 
the day and year hereinabove written.

AGOURON PHARMACEUTICALS, INC.            JAPAN TOBACCO INC.

By:    /S/ Gary E. Friedman              By:     /S/ Masmichi Nishimoto        
       Gary E. Friedman, Esq.                    Masamichi Nishimoto

Title: Vice President & General Counsel  Title:  Executive Director            

Attest:                                  Attest:                       
          


<PAGE>
The following pages have been deleted from this document for confidentiality 
purposes.

     SCHEDULE 1      (1 page deleted listing various countries)

     SCHEDULE 2      (1 page deleted listing various countries)

     SCHEDULE 3      (1 page deleted listing various countries)

     SCHEDULE 4      (1 page deleted listing patent rights)

     EXHIBIT 1       (1 page listing schedule)

     EXHIBIT 2A      (2 pages deleted listing budget)

     EXHIBIT 2B      (2 pages deleted listing budget)

     EXHIBIT 3       (5 pages deleted describing schedule of events)

     ATTACHMENT 1    (1 page deleted which will describe the terms 
                     of the joint venture)

     ATTACHMENT 2    (1 page deleted which will describe the terms 
                     of the trademark license)

     ATTACHMENT 3    (1 page deleted which will describe the terms 
                     of the product manufacturing specifications)

     ATTACHMENT 4    (1 page deleted which will describe the 
                     accounting terms and definitions)

     ATTACHMENT 5    (1 page deleted which will describe the 
                     development costs and reimbursement 
                     procedures)

     ATTACHMENT 6    (1 page deleted which will describe the 
                     premarketing expenses and reimbursement 
                     procedures)

     ATTACHMENT 7    (1 page deleted which will describe the 
                     research program terms and conditions)








<PAGE>
                                                                Exhibit 10.55
       PORTIONS OF THIS DOCUMENT HAVE BEEN OMITTED (DESIGNATED BY AN 
        ASTERIX (*) AND WHITE SPACE) AND FILED SEPARATELY WITH THE
             SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A 
                       REQUEST FOR CONFIDENTIAL TREATMENT
                     FILED JANUARY 31, 1995; FILE NO. 0-15609



                                THIRD AMENDMENT

     Effective January 15, 1995, Agouron Pharmaceuticals, Inc., a California 
corporation with offices at 10350 North Torrey Pines Road, Suite 100, La 
Jolla, California 92037 ("Agouron") and Japan Tobacco Inc., a Japanese 
corporation with offices at 12-62, Higashi-Shinagawa 4 chome, Shinagawa-ku, 
Tokyo 140, Japan ("JT"), for good and valuable consideration, agree as 
follows:


                                   Article I
                                   Background

     1.01     Pursuant to the terms of an agreement which was originally 
entered into on December 18, 1992 (This Agreement, as amended, is hereinafter 
referred to as "Agreement One.").  Agouron and JT have conducted a 
collaborative Research Program ("Research Program One") consisting of * 
                                      to discover, develop, manufacture and 
market novel immunosuppressive drugs.  On February 28, 1994, Agouron and 
JT entered into the First Amendment of Agreement One.  On April 22, 
1994, Agouron and JT entered into the Second Amendment and Restatement 
of Agreement One.  

     1.02     Agouron and JT are also conducting two additional Research 
Programs ("Research Program Two" and "Research Program Three") focusing on 
the development of anti-viral drugs in accordance with the provisions of 
agreements which were originally entered into on February 28, 1994 
("Agreement Two" and "Agreement Three").

     1.03     *  


                                       To affect the preceding and to clarify 
the parties' rights and obligations, the parties agree to further amend 
the terms of Agreement One by entering into this Third Amendment to 
Agreement One ("Third Amendment").

     1.04     For purposes of this Third Amendment, terms with initial 
capitalization shall have the same meanings as those set out in Agreement 
One.

                                 Article II
                               Third Amendment

     2.01     The parties agree that the last day of the Research Term of 
Agreement One is January 15, 1995 and that Research Program One ended on 
January 15, 1995.

<PAGE>
     2.02     The parties agree that only chemical compounds which have been
shown by or on behalf of Agouron or JT, independently or jointly, on or 
before the last day of the Research Term to *                            
         shall be eligible to be Program Compounds, and that any chemical 
compounds synthesized after January 15, 1995 shall not be eligible to be 
Program Compounds.

     2.03     The parties agree that no Program Compounds or Program Products 
were conceived and/or invented in Research Program One during the Research 
Term.

     2.04     The parties agree that the chemical compounds contained in the 
List of Research Program One Compounds dated as of January 15, 1995 are not 
Program Compounds or Program Products.  

     2.05     The parties agree that the parties' rights and obligations 
regarding the commercialization of any chemical compounds and intermediates 
thereof which were invented in Research Program One including, but not 
limited to, the chemical compounds contained in the List of Research Program 
One Compounds dated as of January 15, 1995, and any products incorporating 
such chemical compounds, are set forth in Section 3.05(g) of the Second 
Amendment and Restatement of Agreement One, which Section 3.05(g) reads 
in full as follows:

              (g)  Unless the parties agree otherwise, any chemical 
                   compound(s) which is *

                                                                     
                                                                      
                       The parties shall                    *       
                     the most *
                                                  
                                                                Each 
                    party, as *                     shall have the *




     2.06     The parties agree that *                            does not 
include any know-how, trade secret, experimental data, formula, expert 
opinion, experimental procedure and other confidential and/or proprietary 
information *
     
     
which is *
        as the case may be, *

     2.07     The parties shall cause their respective employees to cooperate 
as reasonably required to co-author manuscripts and to file patent 
applications on separately or jointly made inventions arising out of 
Agreement One.

     2.08     The parties agree that Research Project II is canceled 
effective January 15, 1995.  *



<PAGE>
     2.09     The parties agree to end Research Project I effective 
January 15, 1995 and to reallocate the research efforts which were to be 
committed by Agouron scientists during the third year of Research Project I 
to Research Programs Two and Three.  Notwithstanding the reallocation of 
Agouron's research efforts, *



     2.10     Commencing *                                             
without any further action *
     
     
                               on its own or with any third party, *
     
     
     agrees not to *
     
                         agrees not to *                               
         The 

     
     parties hereby agree that any *
     
                                      If requested by  *
     
     

     2.11     Except as modified by the terms contained herein, the 
provisions of Agreement One shall remain in full force and effect.

     2.12     Notwithstanding the *
     
                     hereby confirms that such *
     


AGOURON PHARMACEUTICALS, INC.                 JAPAN TOBACCO INC.

By     /S/ R. Kent Snyder                     By     /S/ Tsuyoshi Sasaki     

Name   R. Kent Snyder                         Name   Tsuyoshi Sasaki        

Title  Vice President, Business Development   Title   Executive Director     

Date   January 26, 1995                       Date   January 26, 1995       





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