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                                                                    EXHIBIT 99.2



                        COLLABORATIVE RESEARCH AGREEMENT

This COLLABORATIVE RESEARCH AGREEMENT (The "Agreement") is entered into as of
the Effective Date by and between PFIZER INC, a Delaware corporation, having an
office at 235 East 42nd Street, New York, NY 10017 and its Affiliates
("Pfizer"), and ATRIX LABORATORIES, INC. ("ATRIX"), a Delaware corporation,
having an office at 2579 Midpoint Drive, Fort Collins, CO 80525-4417. Pfizer and
ATRIX are sometimes collectively referred to herein as the "Parties" and
individually as a "Party."

WHEREAS, ATRIX has expertise in the development and manufacturing of drug
delivery systems and biomaterials, and products using the same for medical,
veterinary and dental applications; and

WHEREAS, ATRIX has filed the patent applications described in Exhibit A attached
to and made part of this Agreement; and

WHEREAS, the Parties plan to seek patent protection for all Products which make
up the subject matter of this Agreement and the License Agreement; and

WHEREAS, the Parties will also execute a License Agreement with respect to the
commercialization of the subject matter of this Agreement on the same date that
this Agreement is executed; and

WHEREAS, Pfizer has the capability to undertake research for the discovery and
evaluation of agents for treatment of disease and also the capability for
clinical analysis, manufacturing and marketing with respect to such agents;

NOW, THEREFORE, the Parties agree as follows:

1.       DEFINITIONS. Whenever used in this Agreement, the terms defined in this
         Section 1 shall have the meanings specified. The capitalized terms used
         in this


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         Agreement and not defined elsewhere in it or in this Section 1 shall
         have the meanings specified in the License Agreement.

         1.1      "AFFILIATE" means any corporation or other legal entity
                  owning, directly or indirectly, fifty percent (50%) or more of
                  the voting capital shares or similar voting securities of
                  Pfizer or ATRIX; any corporation or other legal entity fifty
                  percent (50%) or more of the voting capital shares or similar
                  voting rights of which is owned, directly or indirectly, by
                  Pfizer or ATRIX or any corporation or other legal entity fifty
                  percent (50%) or more of the voting capital shares or similar
                  voting rights of which is owned, directly or indirectly, by a
                  corporation or other legal entity which owns, directly or
                  indirectly, fifty percent (50%) or more of the voting capital
                  shares or similar voting securities of Pfizer or ATRIX.

         1.2      "AREA" means research or development with respect to delivery
                  systems for Pfizer Compounds.

         1.3      "ATRIGEL(R) SYSTEM" means the biodegradable, polymeric drug
                  delivery system in all embodiments claimed in the "ATRIX
                  Patent Rights".

         1.4      "ATRIX CONFIDENTIAL INFORMATION" means all information about
                  ATRIX or the Program Technology which is disclosed by ATRIX to
                  Pfizer and designated "Confidential" in writing by ATRIX at
                  the time of disclosure to Pfizer to the extent that such
                  information as of the date of disclosure to Pfizer is not (i)
                  known to Pfizer as of the date of disclosure to Pfizer as
                  shown by its prior written records, other than by virtue of a
                  prior confidential disclosure to Pfizer by ATRIX; or (ii) then
                  or thereafter disclosed in published literature, or otherwise
                  generally known to the public through no fault or omission of
                  Pfizer; or (iii) obtained from a third party free from any
                  obligation of confidentiality to ATRIX.



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         1.5      "ATRIX PATENT RIGHTS" means all patents set forth in Exhibit A
                  and all patent applications within the ATRIX Technology,
                  whether domestic or foreign, including all continuations,
                  continuations-in-part, divisions, and renewals, all letters
                  patent granted thereon, and all reissues, re-examinations and
                  extensions thereof.

         1.6      "ATRIX TECHNOLOGY" means all technology, technical
                  information, know-how, expertise and trade secrets owned or
                  controlled by ATRIX as of the Effective Date of this
                  Agreement, that relates to and/or is useful in developing the
                  Atrigel(R) System, the bioerodible mucoadhesive disc
                  (BEMA(TM)) system, the mucoadhesive gel (MCA(TM)) system, the
                  solvent microparticulate (SMP(TM)) system and/or other drug
                  delivery technology owned or controlled by ATRIX.

         1.7      "COMPOUND" means any proprietary compound, its derivatives,
                  metabolites, and intermediates, owned or controlled by Pfizer,
                  that Pfizer provides pursuant to any Research Plan or any
                  Exploratory Development Program Plan.

         1.8      "CONTRACT PERIOD" means the period beginning on the Effective
                  Date and ending on the [ ** ] of said date.

         1.9      "EFFECTIVE DATE" is August 8, 2000.

         1.10     "EXPLORATORY DEVELOPMENT PROGRAM" means the research and
                  development program in the Area commencing upon completion of
                  any Feasibility Program. Each Exploratory Development Program
                  will have its own Exploratory Development Research Plan which
                  will be developed and agreed to by ATRIX and Pfizer



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         1.11     "EXPLORATORY DEVELOPMENT PROGRAM PLAN" means the written plan
                  describing the research, manning, budget, and payment terms in
                  the Area to be carried out by Pfizer and ATRIX during any
                  Exploratory Development Program.

         1.12     "FEASIBILITY PROGRAM" means the initial phase of the Research
                  Program for any Compound in the Area. Each Feasibility Program
                  will have its own Feasibility Program Plan, which will be
                  developed and agreed to by ATRIX and Pfizer.

         1.13     "FEASIBILITY PROGRAM PLAN" means the written plan describing
                  the research, manning, budget, and payment terms in the Area
                  to be carried out by Pfizer and ATRIX during any Feasibility
                  Program.

         1.14     "INVENTIONS" means all patentable inventions, discoveries,
                  improvements or other technological information relating to
                  the Area, which are made or conceived during the term of this
                  Agreement, and as a direct result of either Party's work under
                  the terms of this Agreement. Inventions shall not include any
                  modification, improvement, or discovery relating solely to
                  ATRIX Technology, ATRIX Patent Rights or Program Technology.

         1.15     "LICENSE AGREEMENT" means the License and Royalty Agreement
                  attached to this Agreement as Exhibit C entered into by and
                  between Pfizer and ATRIX as of the Effective Date.

         1.16     "PFIZER CONFIDENTIAL INFORMATION" means all information about
                  Pfizer or the Program Technology which is disclosed by Pfizer
                  to ATRIX and designated "Confidential" in writing by Pfizer at
                  the time of disclosure to ATRIX to the extent that such
                  information is not (i) known to ATRIX as of the date of
                  disclosure to ATRIX as shown by its prior written records,



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                  other than by virtue of a prior confidential disclosure to
                  ATRIX by Pfizer; or (ii) then or thereafter disclosed in
                  published literature, or otherwise generally known to the
                  public through no fault or omission of ATRIX; or (iii)
                  obtained from a third party free from any obligation of
                  confidentiality to Pfizer.

         1.17     "PFIZER PATENT RIGHTS" means all patents and patent
                  applications within the Area, whether domestic or foreign,
                  including all continuations, continuations-in-part, divisions,
                  and renewals, all letters patent granted thereon, and all
                  reissues, re-examinations and extensions thereof. Pfizer
                  Patent Rights include all patents and patent applications
                  claiming any Invention.

         1.18     "PFIZER TECHNOLOGY" means all technology, technical
                  information, know-how, expertise, and trade secrets in the
                  Area owned or controlled by Pfizer as of the Effective Date of
                  this Agreement.

         1.19     "PRODUCT" means a Pfizer Compound in combination with the
                  ATRIX Technology, for use in the treatment of disease states
                  in humans or animals, the manufacture, use, sale, offer for
                  sale or import of which would infringe a Valid Claim within
                  ATRIX Patent Rights or Pfizer Patent Rights if made, used,
                  sold, offered for sale or imported by an unlicensed third
                  party.

         1.20     "PROGRAM TECHNOLOGY" means technology:

                  (a)      developed by employees of or consultants to Pfizer or
                           ATRIX solely or jointly with each other during the
                           Contract Period solely in connection with the
                           performance of any Research Program or Exploratory
                           Development Program; or



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                  (b)      acquired by purchase, license, assignment or other
                           means from third parties by ATRIX or Pfizer during
                           the Contract Period solely for use in the performance
                           of any Research Plan or Exploratory Development
                           Program Plan.

         1.21     "RESEARCH PLAN" means the written plan describing the
                  research, manning, budget, and payment terms in the Area to be
                  carried out by Pfizer and ATRIX pursuant to this Agreement.
                  Each Research Plan will be developed and agreed to by ATRIX
                  and Pfizer and it will be attached to and made a part of this
                  Agreement as Exhibit B.

         1.22     "RESEARCH PROGRAM" means the collaborative research program in
                  the Area conducted by Pfizer and ATRIX pursuant to each
                  Research Plan.

         1.23     "TERM" The initial term of this Agreement begins on the
                  Effective Date and will continue until the [ ** ] anniversary
                  of the Effective Date. This Agreement will automatically renew
                  for an [ ** ] upon Pfizer's written notification to ATRIX at
                  least ninety (90) days prior to termination of the initial
                  term, unless ATRIX notifies Pfizer in writing of its intent
                  not to renew the Agreement.

         1.24     "VALID CLAIM" means a claim within Pfizer Patent Rights and
                  ATRIX Patent Rights so long as such claim shall not have been
                  disclaimed by ATRIX (in the case of ATRIX Patent Rights) or by
                  Pfizer (in the case of Pfizer Patent Rights) and shall not
                  have been held invalid in a final decision rendered by a
                  tribunal of competent jurisdiction from which no appeal has
                  been or can be taken.



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2.       COLLABORATIVE RESEARCH PROGRAM.

         2.1      Feasibility Program.

                  2.1.1    Purpose. ATRIX and Pfizer shall conduct the Research
                           Program throughout the Contract Period during which,
                           from time to time, Pfizer may submit a Compound and a
                           proposed Feasibility Program Plan to ATRIX for
                           formulation and feasibility testing. ATRIX and Pfizer
                           will collaborate in feasibility studies defined in
                           the separate Feasibility Program Plans relating to
                           the Area. Pfizer shall have the right to bring forth
                           any Compound it chooses including those Compounds
                           related to human health and animal health programs,
                           provided that the development of such compounds will
                           not cause ATRIX to violate or breach any prior
                           agreement with any third party which is in effect as
                           of the Effective Date.

                  2.1.2    Feasibility Program Plan. Pfizer may, from time to
                           time, propose a Feasibility Program Plan for a
                           Compound. Upon agreement by the Parties, with respect
                           to Feasibility Program Plans for each succeeding
                           Compound, each such plan shall be appended to Exhibit
                           B and made part of this Agreement.

                  2.1.3    Non-Exclusivity. Subject to the provisions of Section
                           2.2.1, ATRIX agrees that during the Contract Period,
                           Pfizer can propose the addition of any Compound to
                           the Research Program for any indication, without
                           restriction with the exception of the exclusions
                           listed in Exhibit C attached to and made a part of
                           this Agreement; provided, however, that Pfizer shall
                           consider ATRIX's work load with respect to other
                           Compounds previously submitted in determining the
                           timing and number of new Compounds submitted.



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         2.2      Exploratory Development Program

                  2.2.1    Purpose. Pfizer may advance any Compound as
                           formulated in a Feasibility Program ("Formulated
                           Compound") to an Exploratory Development Program.
                           Within sixty (60) days of Pfizer's notification to
                           ATRIX of its intent to advance a Formulated Compound,
                           Pfizer will submit a separate Exploratory Development
                           Plan to ATRIX for each Formulated Compound to be
                           advanced to an Exploratory Development Program.

                  2.2.2    Clinical Supplies. If Pfizer chooses to have clinical
                           supplies of a Formulated Compound manufactured during
                           an Exploratory Development Program, ATRIX shall
                           manufacture such clinical supplies and Pfizer will
                           pay ATRIX [ ** ]

         2.3      Research Committee

                  2.3.1    Purpose. Pfizer and ATRIX shall establish a Research
                           Committee (the "Research Committee"):

                           (a)      to review and evaluate progress under each
                                    Research Plan;

                           (b)      to prepare Research Plans, and any
                                    amendments to them: and

                           (c)      to coordinate and monitor publication of
                                    research results obtained from and the
                                    exchange of information and materials that
                                    relate to the Research Program. (This
                                    function shall survive the termination of
                                    this Agreement).



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                  2.3.2    Membership. Pfizer and ATRIX each shall appoint, in
                           its sole unfettered discretion, three members to the
                           Research Committee. Substitutes may be appointed at
                           any time. The members initially shall be:

                           Pfizer Appointees:          [ ** ]
                                                       [ ** ]
                                                       [ ** ]

                           ATRIX Appointees:           [ ** ]
                                                       [ ** ]
                                                       [ ** ]

                  2.3.3    Chair. The Research Committee shall be chaired by two
                           co-chairpersons, one appointed by Pfizer and the
                           other appointed by ATRIX.

                  2.3.4    Meetings. The Research Committee shall meet at least
                           quarterly, at places selected by each Party in turn
                           and on dates mutually agreed by the Parties. The
                           location of the first meeting of the Research
                           Committee shall be at ATRIX. Representatives of
                           Pfizer or ATRIX or both, in addition to members of
                           the Research Committee, may attend such meetings at
                           the invitation of either Party.

                  2.3.5    Minutes. The Research Committee shall keep accurate
                           minutes of its deliberations, which record all
                           proposed decisions and all actions recommended or
                           taken. Drafts of the minutes shall be delivered to
                           all Research Committee members within five (5)
                           business days after each meeting. The party choosing
                           the location for the meeting shall be responsible for
                           the preparation



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                           and circulation of the draft minutes. Draft minutes
                           shall be edited by the co-chairpersons and shall be
                           issued in final form only with their approval and
                           agreement.

                  2.3.6    Decisions. All technical decisions of the Research
                           Committee shall be made by consensus. In the event of
                           a deadlock the co-chairpersons shall attempt to
                           resolve the deadlock, but if unsuccessful, shall
                           refer the matter to senior management of ATRIX and
                           Pfizer, respectively, for resolution.

                  2.3.7    Expenses. Pfizer and ATRIX shall each bear all
                           expenses related to the participation of the each
                           Party's designated members of the Research Committee.

         2.4      Reports and Materials.

                  2.4.1    Reports. During the Contract Period, Pfizer and ATRIX
                           each shall furnish to the Research Committee;

                           (a)      A summary written report within fifteen (15)
                                    days after the end of each quarter as well
                                    as at the completion of each Research Plan,
                                    commencing on the Effective Date, describing
                                    the progress under such Research Plan; and

                           (b)      A comprehensive written report within thirty
                                    (30) days after the end of each year,
                                    describing in detail the work accomplished
                                    by it under any Research Plan during the
                                    year and discussing and evaluating the
                                    results of such work



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                  2.4.2    Materials. ATRIX and Pfizer shall, during the
                           Contract Period, as a matter of course as described
                           in any Research Plan, or upon each other's written or
                           oral request, furnish to each other samples of
                           biochemical, biological or synthetic chemical
                           materials in the Area, provided that such Research
                           Plan provides funding therefore. To the extent that
                           the quantities of materials requested by either Party
                           exceed the quantities set forth in any Research Plan,
                           the requesting party shall reimburse the other party
                           for the reasonable costs of such materials if they
                           are furnished.

         2.5      Laboratory Facilities and Personnel. ATRIX shall provide
                  suitable laboratory facilities, equipment and personnel for
                  the work to be done by ATRIX in carrying out each Research
                  Program.

         2.6      Diligent Efforts. Pfizer and ATRIX each shall use reasonably
                  diligent efforts to achieve the objectives of each Research
                  Program.

3.       FUNDING THE RESEARCH PROGRAM AND OTHER PAYMENTS.

         3.1      Pfizer will pay all costs and expenses of all studies outlined
                  in each Research Plan pursuant this Agreement, including but
                  not limited to research and development expenses, clinical
                  study expenses, and expenses related to the preparation and
                  submission of regulatory filing as directed by the Research
                  Committee.

                  3.1.1    Full Time Equivalent Employee Rate. Atrix will charge
                           Pfizer a full time equivalent employee ("FTE") rate
                           of [ ** ] per FTE per year for the first two years of
                           this Agreement. For ensuing years, Atrix may increase
                           this FTE rate [ ** ], whichever is lower.

                  3.1.2    Capital Expenditure. ATRIX shall give Pfizer
                           reasonable notice of any anticipated capital expenses
                           required to perform tasks



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                           described in each Research Plan including, but not
                           limited to laboratory equipment, renovations of
                           laboratories and expansions of buildings. The
                           Research Committee may make recommendations to Pfizer
                           regarding such capital expenses; however, Pfizer
                           will, at its sole discretion, have the final decision
                           whether to pay for such capital expenses. If Pfizer
                           determines not to pay for such capital expenses,
                           Atrix shall not be obligated to perform its
                           obligations under that Research Plan which
                           necessitate such capital expenses.

                  3.1.3    Additional Payment. Upon approval of any Exploratory
                           Development Plan for an Exploratory Development
                           Program, Pfizer will make a payment to ATRIX in the
                           amount of [ ** .] This payment will be fully
                           creditable against costs and expenses associated with
                           such Exploratory Development Program. If for any
                           reason, ATRIX does not spend the entire amount of
                           such payment, ATRIX shall credit the balance to
                           Pfizer. Pfizer shall pay ATRIX for any expenses
                           incurred by ATRIX in connection with such Exploratory
                           Development Program in excess of such payment within
                           thirty (30) days of Pfizer's receipt and acceptance
                           of ATRIX's invoice.

         3.2      Each payment shall be paid by Pfizer in U.S. currency by wire
                  transfer to an account designated by ATRIX or by other
                  mutually acceptable means.

         3.3      ATRIX shall keep for three (3) years from the conclusion of
                  each year that this Agreement is valid, complete and accurate
                  records of its expenditures and payments received by it. The
                  records shall conform to good accounting principles as applied
                  to a similar company similarly situated. Pfizer shall have the
                  right at its own expense during the term of this Agreement and
                  during the subsequent three-year period to appoint



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                  an independent certified public accountant reasonably
                  acceptable to ATRIX to inspect said records for the sole
                  purpose of verifying that ATRIX has devoted to the Research
                  Program the FTE's required to verify the accuracy of such
                  expenditures, pursuant to each Research Plan. Upon reasonable
                  notice by Pfizer, ATRIX shall make its records available for
                  inspection by the independent certified public accountant
                  during regular business hours at the place or places where
                  such records are customarily kept, for the sole purpose of
                  verifying that ATRIX has devoted to the Research Plan the
                  FTE's required pursuant to each Research Plan. This right of
                  inspection shall not be exercised more than once in any
                  calendar year and not more than once with respect to records
                  covering any specific period of time. All information
                  concerning such expenditures, and all information learned in
                  the course of any audit or inspection, shall be deemed to be
                  ATRIX Confidential Information. The failure of Pfizer to
                  request verification of any expenditure before or during the
                  three-year period shall be considered acceptance by Pfizer of
                  the accuracy of such expenditures, and ATRIX shall have no
                  obligation to maintain any records pertaining to such report
                  or statement beyond such three-year period. The results of
                  such inspection, if any, shall be binding on the Parties;
                  provided that if ATRIX disputes the results of such
                  inspection, the matter shall be referred to an independent
                  firm of certified public accountants chosen by agreement of
                  Pfizer and ATRIX for resolution of such dispute. Any decision
                  by the said firm of independent certified public accountants
                  shall be binding on the Parties.

4.       TREATMENT OF CONFIDENTIAL INFORMATION.

         4.1      CONFIDENTIALITY.

                  4.1.1    Pfizer and ATRIX each recognize that the other's
                           Confidential Information constitutes highly valuable,
                           confidential information. Subject to the terms and
                           conditions of the License Agreement, the



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                           obligations set forth in Section 4.3 and the
                           publication rights set forth in Section 4.2, Pfizer
                           and ATRIX each agree that during the term of this
                           Agreement and for [ ** ] years thereafter, it will
                           keep confidential, and will cause its Affiliates to
                           keep confidential, all ATRIX Confidential Information
                           or Pfizer Confidential Information, as the case may
                           be, that is disclosed to it, or to any of its
                           Affiliates pursuant to this Agreement. Neither Pfizer
                           nor ATRIX nor any of their respective Affiliates
                           shall use such Confidential Information of the other
                           Party except as expressly permitted in this
                           Agreement.

                  4.1.2    Pfizer and ATRIX each agree that any disclosure of
                           the other's Confidential Information to any officer,
                           employee or agent of the other Party or of any of its
                           Affiliates shall be made only if and to the extent
                           necessary to carry out its rights and obligations
                           under this Agreement and shall be limited to the
                           maximum extent possible consistent with such
                           responsibilities. Pfizer and ATRIX each agree not to
                           disclose the other's Confidential Information to any
                           third parties under any circumstance without written
                           permission from the other Party except to the extent
                           necessary to exercise its rights pursuant to this
                           Agreement or to comply with applicable law. Each
                           Party shall take such action, and shall cause its
                           Affiliates to take such action, to preserve the
                           confidentiality of each other's Confidential
                           Information as it would customarily take to preserve
                           the confidentiality of its own Confidential
                           Information. Each Party will return all the
                           Confidential Information disclosed to the other Party
                           pursuant to this Agreement, including all copies and
                           extracts of documents, within sixty (60) days of the
                           request upon the termination of this Agreement except
                           for one (1) copy which may be kept for archival
                           purposes.



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                  4.1.3    ATRIX and Pfizer each represent that all of its
                           employees, and any consultants to such Party,
                           participating in the Research Program who shall have
                           access to Pfizer Confidential Information and ATRIX
                           Confidential Information are bound by agreement to
                           maintain such Confidential Information in confidence.

         4.2      PUBLICATION. Notwithstanding any matter set forth with
                  particularity in this Agreement to the contrary, results
                  obtained in the course of the Research Program may be
                  submitted for publication following scientific review by the
                  Research Committee and subsequent approval by ATRIX's and
                  Pfizer's managements, which approval shall not be unreasonably
                  withheld. After receipt of the proposed publication by both
                  Pfizer's and ATRIX's managements' written approval or
                  disapproval shall be provided within thirty (30) days for a
                  manuscript, within fourteen (14) days for an abstract for
                  presentation at, or inclusion in the proceedings of a
                  scientific meeting, and within fourteen (14) days for a
                  transcript of an oral presentation to be given at a scientific
                  meeting.

         4.3      PUBLICITY. Except as required by law (including disclosure
                  required by applicable federal securities regulations) and the
                  rules of any stock exchange upon which either Party's
                  securities are or may be listed, neither Party may disclose
                  the terms of this Agreement without the prior written consent
                  of the other Party, which consent shall not be unreasonably
                  withheld; provided, however, that, upon execution of this
                  Agreement, Atrix will issue a press release with respect to
                  its contents; and, further provided, that copies of this
                  Agreement may be disclosed in confidence by ATRIX to
                  prospective investors, banks and other sources of financing.

         4.4      DISCLOSURE OF INVENTIONS. Each Party shall promptly inform the
                  other about all Inventions that are conceived, made or
                  developed in the course



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                  of carrying out the Research Program by employees of, or
                  consultants to, either of them solely, or jointly with
                  employees of, or consultants to the other.

         4.5      RESTRICTIONS ON TRANSFERRING MATERIALS.

                  (a)      Pfizer and ATRIX recognize that the biological,
                           synthetic chemical and biochemical materials, which
                           are part of Pfizer Technology, Pfizer Patent Rights,
                           ATRIX Technology, Atrix Patent Rights or Program
                           Technology, represent valuable commercial assets.
                           Therefore, subject to the terms and conditions of the
                           License Agreement, throughout the Contract Period and
                           for [ ** ] years thereafter, ATRIX and Pfizer agree
                           not to transfer the materials included in Program
                           Technology and Inventions and, in the case of Pfizer,
                           the materials included in ATRIX Technology and Atrix
                           Patent Rights and, in the case of ATRIX, the
                           materials included in Pfizer Technology and Pfizer
                           Patent Rights to any third party unless (i) prior
                           written, consent for any such transfer is obtained
                           from the other Party to this Agreement, or (ii) such
                           transfer is pursuant to a subcontractor for work
                           related to the Research Program and such
                           subcontractor is obligated to hold such materials in
                           confidence.

5.       INTELLECTUAL PROPERTY RIGHTS. The following provisions relate to rights
         in the intellectual property developed by ATRIX or Pfizer, or both,
         during the course of carrying out the Research Program.

         5.1      OWNERSHIP. [ ** ]

         5.2      GRANTS OF LICENSES.



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                  5.2.1    ATRIX and Pfizer each grants to the other a
                           nonexclusive, irrevocable, worldwide, royalty-free,
                           perpetual license (the "Research License"), including
                           the right to grant sublicenses to Affiliates, to make
                           and use ATRIX Confidential Information, Pfizer
                           Confidential Information, Inventions, Program
                           Technology, ATRIX Technology, Pfizer Technology,
                           ATRIX Patent Rights, and Pfizer Patent Rights for all
                           research purposes (consistent with the purpose and
                           intent of this Agreement) other than the sale or
                           manufacture for sale of Products or processes.

                  5.2.2    Pfizer grants to ATRIX a nonexclusive, irrevocable,
                           worldwide, royalty-free, perpetual license, including
                           the right to grant sublicenses, to manufacture, use,
                           sell, offer to sale and import products under all
                           Inventions; provided, however, such rights are
                           limited to a license to use, sell, offer for sale and
                           import products with compounds other than the
                           Compounds.

6.       ACQUISITION OF RIGHTS FROM THIRD PARTIES. During the Contract Period,
         ATRIX and Pfizer shall each promptly notify each other of any and all
         opportunities to acquire in any manner from third parties, technology
         or patents or information which the Parties mutually agree may be
         useful in or may relate to the Research Program. In each case, Pfizer
         and ATRIX shall jointly decide if such rights should be acquired in
         connection with the Research Program and, if so, whether by ATRIX,
         Pfizer or both. If acquired such rights shall become part of ATRIX
         Confidential Information, Pfizer Confidential Information, ATRIX
         Technology, Pfizer Technology, ATRIX Patent Rights, Pfizer Patent
         Rights, whichever is appropriate, of the acquiring party or Program
         Technology, as the case may be. [ ** ]

7.       OTHER AGREEMENTS. Concurrently with the execution of this Agreement,
         ATRIX and Pfizer shall enter into the License Agreement appended to and
         made part of this Agreement. This Agreement and the License Agreement
         are the sole



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         agreements with respect to the subject matter and supersede all other
         agreements and understandings between the Parties with respect to same.

8.       TERM, TERMINATION AND DISENGAGEMENT.

         8.1      EVENTS OF TERMINATION. The following events shall constitute
                  events of termination ("Events of Termination"):

                  (a)      any written representation or warranty by ATRIX or
                           Pfizer, or any of their respective officers, made
                           under or in connection with this Agreement shall
                           prove to have been incorrect in any material respect
                           when made and concerning which the declaring Party
                           knew or should have known the correct version.

                  (b)      ATRIX or Pfizer shall fail in any material respect to
                           perform or observe any term, covenant or
                           understanding contained in this Agreement or in any
                           of the other documents or instruments delivered
                           pursuant to, or concurrently with, this Agreement,
                           and any such failure shall remain unremedied for
                           sixty (60) days after written notice to the failing
                           Party.

         8.2      TERMINATION.

                  8.2.1    Upon the occurrence of any Event of Termination, the
                           Party not responsible may, by thirty (30) days notice
                           to the other Party, terminate this Agreement.

                  8.2.2    If Pfizer terminates this Agreement pursuant to
                           Section 8.2.1, the License Agreement shall continue
                           according to its terms. If ATRIX terminates this
                           Agreement pursuant to Section 8.2.1, the License
                           Agreement shall terminate immediately.



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                  8.2.3    During the Contract Term, Pfizer may discontinue a
                           Research Program described in a Research Plan. The
                           Termination of any Research Plan will not terminate
                           this Agreement.

         8.3      TERMINATION BY PFIZER.

                  8.3.1    After this Agreement has been in effect for a period
                           of thirty (30) months, Pfizer may terminate this
                           Agreement with six (6) months written notice given on
                           or after the last day of the thirtieth month, with or
                           without cause, to ATRIX. If Pfizer terminates this
                           Agreement pursuant to this Section, Pfizer will make
                           the payments, which would otherwise have been due for
                           such six (6) month period; provided, however, if
                           ATRIX has non-cancellable obligations (pursuant to a
                           Research Plan or otherwise as approved pursuant to
                           this Agreement), then any such termination by Pfizer
                           shall not terminate Pfizer's obligations to continue
                           to reimburse or pay ATRIX for such obligations. Such
                           termination shall not terminate Pfizer's right and
                           obligations pursuant to the License Agreement.

         8.4      Termination of this Agreement by either Party, with or without
                  cause, will not terminate such portions of the Research
                  Licenses granted pursuant to Section 5.2. which by their terms
                  extend beyond termination of this Agreement.

         8.5      Termination of this Agreement for any reason shall be without
                  prejudice to:

                  (a)      any rights and obligations of the Parties which
                           provides for, by virtue of this Agreement, survival
                           after beyond the Contract Term;



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                  (b)      ATRIX's right to receive all payments accrued under
                           Section 3; or

                  (c)      any other remedies which either Party may otherwise
                           have.

         8.6      Expiration or termination of this Agreement shall not relieve
                  the Parties of any obligation accruing prior to such
                  expiration or termination. Except as set forth below or
                  elsewhere in this Agreement, the obligations and rights of the
                  Parties under Articles 3, 4, 5, 6, 8, 11 and 13 shall survive
                  expiration or termination of this Agreement.

         8.7      Within thirty (30) days following the expiration or
                  termination of this Agreement, each Party shall return to the
                  other Party, or destroy, upon the written request of the other
                  Party, any and all Confidential Information of the other Party
                  in its possession and upon a Party's request, such destruction
                  (or delivery) shall be confirmed in writing to such Party by a
                  responsible officer of the other Party. Notwithstanding the
                  provisions of this Section 8.7, either Party may retain one
                  (1) copy of such Confidential Information for the sole purpose
                  of determining its continuing confidentiality obligation to
                  the other Party under this Agreement.

9.       REPRESENTATIONS AND WARRANTIES. ATRIX and Pfizer each represents and
         warrants as follows:

         9.1      It is a corporation duly organized, validly existing and is in
                  good standing under the laws of the State of Delaware, is
                  qualified to do business and is in good standing as a foreign
                  corporation in each jurisdiction in which the conduct of its
                  business or the ownership of its properties requires such
                  qualification and has all requisite power and authority,
                  corporate or otherwise, to conduct its business as now being
                  conducted, to own, lease and operate its properties and to
                  execute, deliver and perform this Agreement.



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         9.2      The execution, delivery and performance by it of this
                  Agreement have been duly authorized by all necessary corporate
                  action and do not (a) require any consent or approval of its
                  stockholders, (b) violate any provision of any law, rule,
                  regulations, order, writ, judgement, injunctions, decree,
                  determination award presently in effect having applicability
                  to it or any provision of its certificate of incorporation or
                  by-laws, or (c) as of the Effective Date, result in a breach
                  of or constitute a material default under any material
                  agreement, mortgage, lease, license, permit or other
                  instrument or obligation to which it is a Party or by which it
                  or its properties may be bound or affected.

         9.3      This Agreement is a legal, valid and binding obligation of it
                  enforceable against it in accordance with its terms and
                  conditions, except as such enforceability may be limited by
                  applicable bankruptcy, insolvency, moratorium, reorganization
                  or similar laws, from time to time in effect, affecting
                  creditor's rights generally.

         9.4      It is not under any obligation to any person, or entity,
                  contractual or otherwise, that is conflicting or inconsistent
                  in any respect with the terms of this Agreement or that would
                  impede the diligent and complete fulfilment of its
                  obligations.

         9.5      To the best of its knowledge and belief as of the Effective
                  Date, it has good and marketable title to or valid leases or
                  licenses for, all of its properties, rights and assets
                  necessary for the fulfilment of its responsibilities under the
                  Research Program.

10.      COVENANTS OF ATRIX AND PFIZER OTHER THAN REPORTING REQUIREMENTS.
         Throughout the Contract Period, ATRIX and Pfizer each shall:



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         10.1     maintain and preserve its corporate existence, rights,
                  franchises and privileges in the jurisdiction of its
                  incorporation, and qualify and remain qualified as a foreign
                  corporation in good standing in each jurisdiction in which
                  such qualification is from time to time necessary or desirable
                  in view of their business and operations or the ownership of
                  their properties.

         10.2     comply in all material respects with the requirements of all
                  applicable laws, rules, regulations and orders of any
                  government authority to the extent necessary to conduct the
                  Research Program, except for those laws, rules, regulations,
                  and orders it may be contesting in good faith.

11.      INDEMNIFICATION. Pfizer will indemnify, defend and hold ATRIX and its
         Affiliates and their respective directors, officers, employees and
         agents (the "ATRIX Indemnitees") harmless from and against any damages,
         liabilities, settlements, costs, legal fees and other expenses incurred
         in connection with a claim against the ATRIX Indemnitees based on any
         action or omission of Pfizer, its agents or employees related to the
         obligations of Pfizer under this Agreement; provided, however, that the
         foregoing shall not apply (i) if the claim is found in a final
         judgement to be based upon the negligence, recklessness or wilful
         misconduct of ATRIX, or (ii) if ATRIX fails to give Pfizer prompt
         notice of any claim it receives within fifteen (15) days of such
         receipt and such failure materially prejudices Pfizer with respect to
         any claim or action to which Pfizer's obligation pursuant to this
         Section applies. Pfizer, in its sole discretion, shall choose legal
         counsel, shall control the defense of such claim or action and shall
         have the right to settle same on such terms and conditions it deems
         advisable; provided, however, Pfizer shall obtain ATRIX's prior written
         consent to such part of any settlement which contemplates payment or
         other action by ATRIX or has a material adverse effect on ATRIX's
         business (which material adverse effect shall include but not be
         limited to, an admission by the ATRIX Indemnitees of any issue, fact,
         allegation or any other aspect of the claim being settled); provided,
         further, that an ATRIX Indemnitee shall have the right to retain its
         own counsel,



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         if representation of such ATRIX Indemnitee by the counsel retained by
         Pfizer would be inappropriate due to actual or potential differing
         interests between Pfizer and any other Party represented by such
         counsel in such proceeding.

12.      NOTICES. All notices shall be in writing mailed via certified mail,
         return receipt requested, courier, or facsimile transmission addressed
         as follow, or to such other address as may be designated from time to
         time:

         If to Pfizer:               Pfizer Global Research & Development
                                     Eastern Point Road
                                     Groton, CT  06340
                                     Attn:  Executive Vice President, SOM
                                     Cc: Asst. General Counsel

         If to ATRIX:                To ATRIX at its address as set forth in
                                     the beginning of this Agreement.
                                     Attn:  Charles P. Cox, PhD., MBA, Vice
                                     President, New Business Development

         with copy to:               Morrison & Foerster LLP
                                     5200 Republic Plaza
                                     370 Seventeenth Street
                                     Denver, CO 80202-5638
                                     Attn:  Warren L. Troupe, Esq.

Either Party may by like notice specify or change an address to which notices
and communications shall thereafter be sent. Notices sent by facsimile, computer
mail or other electronic means shall be effective upon confirmation of receipt,
notices sent by mail or overnight delivery service shall be effective upon
receipt, and notices given personally shall be effective when delivered.

13.      MISCELLANEOUS.

         13.1     GOVERNING LAW. This Agreement shall be governed by and
                  construed in accordance with the laws of the State of New
                  York.



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         13.2     BINDING EFFECT. This Agreement shall be binding upon and inure
                  to the benefit of the Parties and their respective legal
                  representatives, successors and permitted assigns.

         13.3     HEADINGS. Paragraph headings are inserted for convenience of
                  reference only and do not form a part of this Agreement.

         13.4     COUNTERPARTS. This Agreement may be executed simultaneously in
                  two or more counterparts, each of which shall be deemed an
                  original.

         13.5     AMENDMENT; WAIVER. This Agreement may be amended, modified,
                  superseded or cancelled, and any of the terms may be waived,
                  only by a written instrument executed by each Party or, in the
                  case of waiver, by the Party or Parties waiving compliance.
                  The delay or failure of any Party at any time or times to
                  require performance of any provisions shall in no manner
                  affect the rights at a later time to enforce the same. No
                  waiver by any Party of any condition or of the breach of any
                  term contained in this Agreement, whether by conduct, or
                  otherwise, in any one or more instances, shall be deemed to
                  be, or considered as, a further or continuing waiver of any
                  such condition or of the breach of such term or any other term
                  of this Agreement.

         13.6     NO THIRD PARTY BENEFICIARIES. No third party, including any
                  employee of any Party to this Agreement, shall have or acquire
                  any rights by reason of this Agreement. Nothing contained in
                  this Agreement shall be deemed to constitute the Parties
                  partners with each other or any third party.

         13.7     ASSIGNMENT AND SUCCESSORS. This Agreement may not be assigned
                  by either Party, except that each Party may assign this
                  Agreement and the rights and interests of such Party, in whole
                  or in part, to any of its



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                  Affiliates, any purchaser of all or substantially all of its
                  assets or to any successor corporation resulting from any
                  merger or consolidation of such Party with or into such
                  corporations.

         13.8     FORCE MAJEURE. Neither Pfizer nor ATRIX shall be liable for
                  failure of or delay in performing obligations set forth in
                  this Agreement, and neither shall be deemed in breach of its
                  obligations, if such failure or delay is due to natural
                  disasters or any causes reasonably beyond the control of
                  Pfizer or ATRIX; provided that the Party whose performance is
                  delayed or prevented shall continue to use good faith diligent
                  efforts to mitigate, avoid or end such delay or failure in
                  performance as soon as practicable.

         13.9     SEVERABILITY. If any provision of this Agreement is or becomes
                  invalid or is ruled invalid by any court of competent
                  jurisdiction or is deemed unenforceable, it is the intention
                  of the Parties that the remainder of the Agreement shall not
                  be affected.

         13.10    COMPLIANCE WITH LAW. In exercising their rights under this
                  Agreement, the Parties shall fully comply with the
                  requirements of any and all applicable laws, regulations,
                  rules and orders of any governmental body having jurisdiction
                  over the exercise of rights under this Agreement.

IN WITNESS WHEREOF, the Parties have caused this Agreement to be executed by
their duly authorized representatives.


             PFIZER INC                        ATRIX LABORATORIES, INC.

By /s/ George M. Milne, Jr.             By /s/ David R. Bethune
   ---------------------------             ------------------------------

Name:  George M. Milne, Jr.             Name: David R. Bethune

Title: Senior Vice President            Title: Chairman and Chief Executive
                                               Officer


cc:      Pfizer Inc, Legal Division, Groton, CT 06340



                                       25
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                                    EXHIBIT A

                               ATRIX PATENT RIGHTS

[ ** ]



                                      A-1
   27

                                    EXHIBIT B

                                  RESEARCH PLAN



                                       B-1
   28

                                    EXHIBIT C

                                   EXCLUSIONS

[ ** ]



                                       C-1