LEUKOSITE INC
8-K, 1999-09-03
PHARMACEUTICAL PREPARATIONS
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                       SECURITIES AND EXCHANGE COMMISSION
                               WASHINGTON DC 20549

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

                                    FORM 8-K

                                 CURRENT REPORT
                     Pursuant to Section 13 or 15(d) of the
                         Securities Exchange Act of 1934


        Date of Report (Date of earliest event reported) August 24, 1999
                                                         ---------------

                                 LEUKOSITE, INC.
               --------------------------------------------------
               (Exact Name of Registrant as Specified in Charter)



            DELAWARE                  0-22769                  04-3173859
- ------------------------------------------------------------------------------
(State or Other Jurisdiction        (Commission              (IRS Employer
         of Incorporation           File Number            Identification No.)


                      215 First Street, Cambridge, MA 02142
               ---------------------------------------------------
               (Address of Principal Executive Offices) (Zip Code)


        Registrant's telephone number, including area code (617) 621-9350


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                                      -2-

ITEM 5. OTHER EVENTS.

On August 24, 1999, LeukoSite announced that L&I Partners, L.P., a joint venture
which LeukoSite has with ILEX Oncology, Inc., entered into an agreement with
Schering AG for the marketing and distribution of CAMPATH(TM) in the United
States, Europe and the rest of the world except for Japan and East Asia (where
LeukoSite and ILEX have retained rights). The Agreement is attached hereto as
Exhibit 99.1 and incorporated herein by reference. The foregoing description is
qualified by reference to such exhibit.

ITEM 7. FINANCIAL STATEMENTS, PRO FORMA FINANCIAL INFORMATION AND EXHIBITS.

(C) EXHIBITS.

*99.1 Distribution and Development Agreement between L&I Partners, L.P. and
      Schering AG, dated August 24, 1999


* Confidential treatment requested: material has been omitted and filed
separately with the Commission.

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                                      -3-


                                    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 hereunto duly authorized.

                                        LEUKOSITE, INC.


                              By: /s/ Augustine Lawlor
                                 ----------------------------------------------
                                      Augustine Lawlor,
                                      Chief Operating and Financial Officer and
                                      Senior Vice President, Corporate
                                      Development

Dated:  September 3, 1999



<PAGE>

                             CONFIDENTIAL TREATMENT

                                                                    EXHIBIT 99.1
                                                                 TO FORM 8-K FOR
                                                                 LEUKOSITE, INC.


                     DISTRIBUTION AND DEVELOPMENT AGREEMENT

      This Distribution and Development Agreement ("AGREEMENT") is entered into
as of August 24, 1999 (the "Effective Date") by and between L&I Partners, L.P.,
a Delaware partnership, having its principal place of business at 11550 1H-10
West, Suite 100, San Antonio, Texas 78230 ("L&I") and with Schering AG a German
corporation, having a principal place of business at 13342 Berlin, Germany
(hereinafter "DISTRIBUTOR").

                                   WITNESSETH

      WHEREAS, the parties hereto desire that DISTRIBUTOR engage in the
distribution in the TERRITORY (as hereinafter defined) of the PRODUCT (as
hereinafter defined); and

      WHEREAS, L&I and DISTRIBUTOR desire to set forth in this AGREEMENT the
terms and conditions of such distribution.

      NOW, THEREFORE, the parties hereto agree as follows:


1.    DEFINITIONS

1.1   "AFFILIATE" shall mean with respect to a PARTY any corporation or other
      business entity that directly or indirectly controls, is controlled by, or
      is under common control with such PARTY. Control means ownership or other
      beneficial interest in fifty percent (50%) or more of the voting stock or
      other voting interest of a corporation or other business entity, or the
      power to direct or cause the direction of the management or policies of an
      entity. LEUKOSITE and ILEX are AFFILIATES of L&I as is any corporation or
      business entity that directly or indirectly controls, is controlled by, or
      is under common control with LEUKOSITE or ILEX.

1.2   "AGENCY" shall mean any governmental or regulatory authority in the
      TERRITORY responsible for granting approvals or registrations for
      marketing of PRODUCT in the TERRITORY.

1.3   "APLS" shall mean the Advertising and Promotional Labeling Staff (or
      successor unit) of the FDA's Center for Biologics Evaluation and Research.



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1.4   "APPROPRIATE PERCENTAGE" for PRODUCT for each INDICATION means:

      (i)   ****** of positive EARNINGS. 1
      (ii)  ****** of negative EARNINGS.

1.5   "BERLEX" means DISTRIBUTOR'S US AFFILIATE, Berlex Laboratories, Inc.

1.6   "BI" shall mean Boehringer Ingelheim Pharma KG.

1.7   "BI AGREEMENT" shall mean the Supply Agreement between L&I and BI dated
      June 4th, 1999 with respect to CAMPATH 1H and any amendments thereto.

1.8   "BLA" means a Biologics License Application from the Food and Drug
      Administration.

1.8   "BTG" means British Technology Group Limited.

1.10  "BTG AGREEMENT" means the March 31, 1997 agreement between BTG and
      LEUKOSITE with respect to Campath I-H and any amendments thereto including
      but not limited to the Deed of Variation of Appendix I.

1.11  "BTG CONSENT LETTER" means the letter from BTG to DISTRIBUTOR dated as of
      the Effective Date in the form set out in Appendix H to this AGREEMENT.

1.12  "BTG DEED OF VARIATION" means the Deed of Variation to the BTG Agreement
      made between LEUKOSITE and BTG and dated as of the Effective Date in the
      form set out in Appendix I to this AGREEMENT.

1.13  "BTG ROYALTIES" shall mean the royalties payable by L&I and/or LEUKOSITE
      to British Technology Group Limited pursuant to Section 6 of the BTG
      AGREEMENT in respect of PRODUCT sold or otherwise disposed of by
      DISTRIBUTOR, its AFFILIATES or their SUBDISTRIBUTORS in the TERRITORY.

1.14  "CALENDAR QUARTER" shall mean the period of three consecutive calendar
      months ending on March 31, June 30, September 30 or December 31, as the
      case may be.

1.15  "CLINICAL TRIAL" shall mean CAM 211 pivotal study being presently
      conducted by L&I.

1.16  "CLL INDICATION" means the treatment of chronic lymphocytic leukemia in
      humans.

1.17  "COST OF GOODS" shall mean the aggregate of the following, determined in a
      reasonable manner in accordance with GAAP (i) the amount(s) paid by L&I to
      a THIRD

- ------------------------
      1 "Confidential treatment requested: material has been omitted and filed
separately with the Commission".


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      PARTY(IES) or to the DISTRIBUTOR, if applicable, for (a) manufacture of
      FINAL FORM PRODUCT or FILLED PRODUCT, as applicable; (b) transportation,
      storage and insurance for delivery to DISTRIBUTOR of FINAL FORM PRODUCT
      or, if applicable, FILLED PRODUCT ; and (c) performance of manufacturing
      and quality assurance activities (if any) in relation to the PRODUCT; and
      (ii) any direct expenses incurred by L&I associated with L&I's
      manufacturing and quality assurance activities (if any) in relation to the
      PRODUCT.

1.18  "DEVELOPMENT COMMITTEE" shall mean the Committee of Section 10.

1.19  "DEVELOPMENT EXPENSES" means the aggregate amount of expenses incurred for
      developing and obtaining regulatory approval of PRODUCT for an INDICATION
      in accordance with a DEVELOPMENT PLAN or PRELIMINARY WORK PLAN, as the
      case may be, determined in a reasonable manner in accordance with GAAP,
      including but not limited to: (i) direct labor (salaries, wages and
      employee benefits but excluding any employee benefits associated with
      equity incentive plans); (ii) materials and supplies; (iii) allocated
      maintenance and depreciation costs for building space directly dedicated
      to the development of the PRODUCT but excluding costs and charges relating
      to unused capacity, development of other products, and amortization of
      property, plant and equipment not directly related to development of
      PRODUCT for an INDICATION in accordance with a DEVELOPMENT PLAN or
      PRELIMINARY WORK PLAN; and (iv) payments made to THIRD PARTIES for
      services in connection with such development which are supported by
      invoices describing the work performed; and (v) insurance, telephone
      expenses, training, software amortization costs, travel and supplies. Such
      costs shall not include general overhead costs occurring from units that
      are not directly engaged in the development of the PRODUCT for an
      INDICATION in accordance with a DEVELOPMENT PLAN or PRELIMINARY WORK PLAN.
      If DEVELOPMENT EXPENSES are incurred by an AFFILIATE, they shall be
      determined and charged as set forth in this Section 1.19.

1.20  "DEVELOPMENT PLAN" means a plan for developing PRODUCT in the TERRITORY
      for an OTHER INDICATION that has been approved by the DEVELOPMENT
      COMMITTEE and that includes a budget, design of clinical studies and
      timelines.

1.21  "DISTRIBUTOR BTG LETTER" means the letter from DISTRIBUTOR to BTG dated as
      of the Effective Date in the form set out in Appendix A to this AGREEMENT.

1.22  "EARNINGS" means the positive or negative amount that is calculated for
      PRODUCT for each INDICATION in the PROFIT SHARING TERRITORY, in accordance
      with GAAP, by deducting from NET SALES (if any) thereof the following:

            (i) COST OF GOODS for FINAL FORM PRODUCT that is sold in the PROFIT
      SHARING TERRITORY, charged on a first-in first-out basis,
            (ii) SELLING EXPENSES for PRODUCT in the PROFIT SHARING TERRITORY,


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            (iii) MARKETING EXPENSES for PRODUCT in the PROFIT SHARING
      TERRITORY, provided, however, that MARKETING EXPENSES for a PRODUCT for an
      INDICATION in a YEAR are only deductible against EARNINGS up to the amount
      agreed to by DISTRIBUTOR and L&I pursuant to Section 3.1(c),
            (iv) distribution expenses for PRODUCT in the PROFIT SHARING
      TERRITORY (including monies paid to THIRD PARTIES),
            (v) REIMBURSABLE MARKETING EXPENSES for PRODUCT in the PROFIT
      SHARING TERRITORY,
            (vi) THIRD PARTY ROYALTIES for PRODUCT in the PROFIT SHARING
      TERRITORY,
            (vii) cost of out-of-date, spoiled, lost or destroyed FINAL FORM
      PRODUCT for the PROFIT SHARING TERRITORY.
            (viii) RECALL EXPENSE for PRODUCT in the PROFIT SHARING TERRITORY,
            (ix) insurance premiums payable for PRODUCT for the PROFIT SHARING
      TERRITORY, including product liability insurance but excluding product
      liability expenses, such as the cost of defense, settlement and damage
      awards.
            (x) amounts paid for co-promotion under Section 3.9.

1.23  "EMEA" shall mean the European Medicines Evaluation Agency.

1.24  "FILLED PRODUCT" means PRODUCT manufactured in accordance with the
      SPECIFICATIONS that is filled but not packaged and labeled.

1.25  "FINAL FORM PRODUCT" shall mean PRODUCT in accordance with the
      SPECIFICATIONS that is fully formulated, in final form packaged and
      labeled for ultimate consumer use.

1.26  "FIRM ORDER" means an order for PRODUCT placed with L&I that cannot be
      reduced.

1.27  "FIRST COMMERCIAL SALE" of PRODUCT shall mean the first sale for use or
      consumption by the general public of such PRODUCT in the United States
      after AGENCY approval of the PRODUCT has been granted.

1.28  "GAAP" shall mean United States Generally Accepted Accounting Principles.

1.29  "ILEX" means ILEX Oncology, Inc., a Delaware corporation.

1.30  "INDICATION(S)" means the CLL INDICATION and OTHER INDICATIONS.

1.31  "LEUKOSITE" means LeukoSite, Inc., a Delaware corporation.

1.32  "MAJOR COUNTRIES" means Germany, France, Italy, Spain and United Kingdom.

1.33  "MARKETING COMMITTEE" shall mean the MARKETING COMMITTEE of Section
      3.1(a).


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1.34  "MARKETING EXPENSES" shall mean all costs and expenses incurred by the
      AFFILIATE of DISTRIBUTOR that distributes in the PROFIT SHARING TERRITORY
      for marketing associated with launch, advertising and sales promotion
      (including, without limitation, expenses of patient programs such as those
      involving compassionate use, indigents, uninsured and underinsured,
      training, disease information and management, and compliance; expenses
      related to promotional publications, space or time in various media,
      direct mail campaigns, samples, advertising agency fees and other
      promotional activities); phase IV studies (whether or not required by a
      regulatory agency). Such expenses include allocated maintenance and
      depreciation costs for building space directly dedicated to the marketing
      of a PRODUCT, but exclude costs and charges relating to unused capacity,
      marketing of other products, and amortization of property, plant and
      equipment not directly related to marketing of a PRODUCT, in each case
      determined in accordance with GAAP. MARKETING EXPENSE does not include
      SELLING EXPENSES. In each YEAR, MARKETING EXPENSES deductible against
      EARNINGS shall not exceed the amount in the MARKETING PLAN.

1.35  "MARKETING PLAN" means the MARKETING PLAN of Section 3.1.

1.36  "MSL" means medical science liaison staff members who contact key thought
      leaders in oncology to initiate or conduct medical and scientific dialog
      with respect to PRODUCT.

1.37  "NET SALES" shall mean with respect to PRODUCT that sum determined by
      deducting from the gross amount invoiced by DISTRIBUTOR or its AFFILIATES
      or any of their SUBDISTRIBUTORs for PRODUCT sold for use in the TERRITORY
      in an arms length transaction to customers who are not AFFILIATES of
      DISTRIBUTOR or their SUBDISTRIBUTORs: (i) transportation charges and
      insurance charges relating thereto; (ii) trade, quantity or cash
      discounts, to the extent allowed; (iii) rebates, chargebacks, credits or
      allowances, if any, given or made on account of price adjustments, or
      returns, to the extent made; (iv) any and all Federal, state or local
      government rebates, whether in existence now, or enacted at any time
      during the term of this AGREEMENT, to the extent made; (v) any tax (not
      including income taxes or similar taxes), customs duty, excise or other
      governmental charge upon or measured by the production, sale,
      transportation, delivery or use of the PRODUCT; and (vi) reasonable
      allowance for bad debts not to exceed one percent of gross amount
      invoiced; in each case determined in accordance with DISTRIBUTOR'S normal
      internal accounting practices and GAAP (or, in the case of DISTRIBUTOR'S
      non-United States business, International Accounting Standards.)

      For the purpose of calculating NET SALES, the PARTIES recognize that (a) a
      DISTRIBUTOR'S customers may include entities in the chain of commerce who
      enter into agreements with DISTRIBUTOR as to price even though title to
      the PRODUCT does not pass directly from DISTRIBUTOR to such customers, and
      even though payment for such PRODUCT is not made by such customers
      directly to DISTRIBUTOR; and (b) in such cases chargebacks paid by
      DISTRIBUTOR to or through a THIRD PARTY (such as a wholesaler) can be
      deducted by a DISTRIBUTOR from gross revenue in order to


                                       5
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      calculate a DISTRIBUTOR'S Net Sales. Any deductions listed above which
      involve a payment by a DISTRIBUTOR shall be taken as a deduction against
      aggregate sales for the period in which the payment is made or deduction
      is taken.

      In the event that DISTRIBUTOR or its AFFILIATES sells through or to a
      SUBDISTRIBUTOR, or DISTRIBUTOR sells through an AFFILIATE, then NET SALES
      shall be calculated based on the amount invoiced by DISTRIBUTOR or its
      AFFILIATES or their SUBDISTRIBUTOR to an entity that is not an AFFILIATE
      or SUBDISTRIBUTOR.

1.38  "OPT OUT OPTION" shall have the meaning set forth in Section 12.1 (c)
      (ii).

1.39  "OTHER CANCER INDICATION(S)" means the treatment of cancer, other than a
      CLL INDICATION, in humans. For the avoidance of doubt, it is agreed that
      transplantation procedures in humans for the treatment of cancer
      constitutes an OTHER CANCER INDICATION.

1.40  "OTHER INDICATIONS" means OTHER CANCER INDICATIONS and OTHER NON-CANCER
      INDICATIONS.

1.41  "OTHER NON-CANCER INDICATION(S)" means one or more of the following
      indications: the treatment of rheumatoid arthritis in humans; the
      treatment of multiple sclerosis in humans; therapeutic indications in
      human transplantation (other than for treatment of cancer); and any other
      indications as to which L&I obtains rights under the BTG AGREEMENT, in
      each case other than the CLL INDICATION or OTHER CANCER INDICATIONS.

1.42  "OTHER TERRITORY" shall mean all countries of the TERRITORY other than the
      PROFIT-SHARING TERRITORY.

1.43  "PARTY(IES)" shall mean DISTRIBUTOR and/or L&I, as the case may be.

1.44  "PAYMENT AMOUNT" means for PRODUCT for an OTHER NON-CANCER INDICATION
      ******2 percent of the aggregate of (i) total sales for all PRODUCT for
      such INDICATION in the YEAR that has the highest total sales therefor in
      the United States in any YEAR of the first five YEARS after initial launch
      of a PRODUCT for such INDICATION in the United States and (ii) total sales
      for all PRODUCT for such INDICATION in the YEAR that has the highest total
      aggregate sales therefor in countries of the TERRITORY other than the
      United States in any YEAR of the first five YEARS after initial launch of
      a PRODUCT for such INDICATION in Europe.

- ------------------------
      2 "Confidential treatment requested: material has been omitted and filed
separately with the Commission".

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1.45  "PRELIMINARY DEVELOPMENT PLAN" means a compilation of information and/or
      data of the type that is sufficient to conduct a pre-IND meeting with the
      FDA for PRODUCT for an OTHER NON-CANCER INDICATION.

1.46  "PRELIMINARY WORK PLAN" means a plan for performing non-clinical or
      exploratory clinical research, including a budget, with respect to PRODUCT
      for an OTHER NON-CANCER INDICATION.

1.47  "PRIME" means "prime rate" as publicly announced by the Bank of America
      National Trust and Savings Association in San Francisco as its prime rate
      as set forth on the REUTERS screen (USPRIME1). Interest shall be
      calculated on the actual number of days elapsed over a 365 -day year.

1.48  "PRODUCT" shall mean the humanized antibody directed against CD-52 known
      as Campath 1H and any product containing such antibody as an active
      ingredient.

1.49  "PROFIT SHARING TERRITORY" means the United States of America.

1.50  "RECALL EXPENSE" shall mean the cost and expense for recall or market
      withdrawal of PRODUCT in the PROFIT SHARING TERRITORY required or
      requested by a governmental authority having jurisdiction thereover or as
      a result of a decision of the MARKETING COMMITTEE, including, but not
      limited to, expenses incurred for replacement of PRODUCT, all in
      accordance with GAAP.

1.51  "REIMBURSABLE MARKETING EXPENSES" shall mean the MARKETING EXPENSES
      incurred in the PROFIT-SHARING TERRITORY with respect to PRODUCT for an
      INDICATION prior to launch thereof incurred by the AFFILIATE of
      DISTRIBUTOR that is distributing PRODUCT in the PROFIT-SHARING TERRITORY,
      with one-eighth (1/8) of the aggregate thereof being charged against
      EARNINGS for the PRODUCT for the CLL INDICATION in each of the eight
      CALENDAR QUARTERS after launch thereof. The REIMBURSABLE MARKETING
      EXPENSES for the CLL INDICATION shall not exceed ****** ******3. For OTHER
      INDICATIONS, the maximum amount shall be determined by the MARKETING
      COMMITTEE.

1.52  "SELLING EXPENSES" means the aggregate amount of all direct incremental
      expenses incurred for the sales force and sales force management by the
      AFFILIATE of DISTRIBUTOR that is distributing PRODUCT in the
      PROFIT-SHARING TERRITORY, all in accordance with GAAP and all only as they
      relate to sale of PRODUCT for an INDICATION in the PROFIT-SHARING
      TERRITORY, including but not limited to salaries, commissions, sales
      incentive payments, sales training

- ------------------------
      3 "Confidential treatment requested: material has been omitted and filed
separately with the Commission".



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      expenses, and travel expenses. The SELLING EXPENSES deductible against
      EARNINGS for each YEAR for PRODUCT for the CLL INDICATION shall not exceed
      the lesser of the amount in the MARKETING PLAN or ******3 (proportionately
      adjusted for part of a YEAR) which ******4 limit shall be adjusted by
      applying the following factor:
                                   BA * CPI
                                   --------
                                   BCPI
 BA = ***************************************************5;
      BCPI = the Bureau of Labor Statistics Consumer Price Index for All Urban
      Consumers; All cities; All Items for January 1, 2000; and CPI = the Bureau
      of Labor Statistics Consumer Price Index for All Urban Consumers; All
      cities; All Items for January of the current year.

      For all OTHER INDICATIONS, the amount deductible in a YEAR against
      EARNINGS shall not exceed the amount in the MARKETING PLAN.

1.53  "SPECIFICATIONS" shall have the meaning set forth in Section 1.9 of the BI
      AGREEMENT.

1.54  "SUBDISTRIBUTOR" shall mean an entity other than an AFFILIATE through
      which DISTRIBUTOR routinely conducts all of its sales business of PRODUCT
      in a particular country of the TERRITORY, and which entity assumes the
      marketing, promotional, distribution and sales obligations of DISTRIBUTOR
      in any country. SUBDISTRIBUTOR excludes THIRD PARTIES such as wholesalers,
      pharmacists, hospitals, and health management organizations.

1.55  "TERRITORY" shall mean all countries of the world except those of Appendix
      C.

1.56  "THIRD PARTY" shall mean a person or entity other than DISTRIBUTOR, L&I,
      LEUKOSITE, ILEX or their respective AFFILIATES.

1.57  "THIRD PARTY ROYALTIES" shall mean the BTG ROYALTIES and any other
      royalties payable to THIRD PARTIES pursuant to the THIRD PARTY agreements
      listed in Appendix G as of the Effective Date, or subsequently added
      thereto with the consent of the DISTRIBUTOR in respect of sales of the
      PRODUCT by the DISTRIBUTOR, its AFFILIATES and SUBDISTRIBUTORS

1.58  "TRADEMARK" shall mean CAMPATH(R).

- ------------------------
4 /"Confidential treatment requested: material has been omitted anf filed
separately with the Commission".
5"Confidential treatment requested: material has been omitted and filed
separately with the Commission".


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1.59  "YEAR" shall mean the 12-month period beginning on January 1, except that
      the initial YEAR shall extend from the Effective Date until December 31st
      of the calendar year of the Effective Date (such that it may include less
      than 12 months).

2.    APPOINTMENT

2.1   GRANT OF DISTRIBUTION RIGHTS.

      (a)   L&I hereby appoints DISTRIBUTOR as the exclusive distributor of the
            PRODUCT in the TERRITORY for use only in the TERRITORY for the CLL
            INDICATION and for OTHER INDICATIONS, each for the term set forth in
            Article 18 (unless earlier terminated pursuant to this AGREEMENT),
            and DISTRIBUTOR accepts such appointment.

      (b)   DISTRIBUTOR agrees that DISTRIBUTOR (i) will sell and distribute
            PRODUCT in the TERRITORY only for the INDICATIONS for which
            DISTRIBUTOR retains distribution rights under this AGREEMENT; (ii)
            will only sell in the TERRITORY PRODUCT which is purchased from L&I;
            and (iii) will only sell PRODUCT in the TERRITORY under the
            TRADEMARK.

      (c)   DISTRIBUTOR agrees to distribute the PRODUCT for an INDICATION only
            in accordance with the terms, conditions and purposes of this
            AGREEMENT, and, in the PROFIT-SHARING TERRITORY, only in accordance
            with the MARKETING PLAN therefor.

2.2   LIMITATION ON DISCOUNTING.

      DISTRIBUTOR agrees that DISTRIBUTOR will not without L&I's written consent
      discount the selling price of PRODUCT in order to promote the sales of
      other products of DISTRIBUTOR and that it will conduct all price
      negotiations in good faith on an arms length basis provided, however, that
      the foregoing should not be interpreted as permitting L&I to set prices in
      countries of the European Union. It is expressly understood that L&I
      cannot provide such consent unless L&I receives the consent of BTG.

2.3   SALES THROUGH SUBDISTRIBUTORS.

      DISTRIBUTOR intends to sell PRODUCT through its AFFILIATES in countries
      where DISTRIBUTOR has AFFILIATES in the TERRITORY and in Germany through
      DISTRIBUTOR'S existing distributor Medac GmbH. L&I consents to Medac GmbH
      as a SUBDISTRIBUTOR. DISTRIBUTOR can sell product in the TERRITORY through
      SUBDISTRIBUTORs only as follows:

      (i) Without the consent of L&I, through SUBDISTRIBUTORs of DISTRIBUTOR
      that distribute FLUDARA(R) in countries of the TERRITORY (other than MAJOR
      COUNTRIES) where FLUDARA(R) is sold through SUBDISTRIBUTORs; and


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<PAGE>


      (ii) With the consent of L&I, in all countries of the TERRITORY not
      included in Section 2.3(i), which consent shall not be unreasonably
      withheld or delayed.

3.    MARKETING IN THE PROFIT-SHARING TERRITORY

3.1   MARKETING COMMITTEE.

      (a)   The marketing and selling of PRODUCT in the PROFIT SHARING TERRITORY
            for (i) the CLL INDICATION and (ii) OTHER INDICATIONS for which
            DISTRIBUTOR retains distribution rights shall be overseen by a
            committee composed of four members, with DISTRIBUTOR appointing two
            (2) members and L&I two (2) members (the "MARKETING COMMITTEE"),
            with a member appointed by DISTRIBUTOR being Chairman of the
            MARKETING COMMITTEE.

      (b)   The MARKETING COMMITTEE shall meet at the call of the Chairman, but
            not less than once each CALENDAR QUARTER of each YEAR, at the
            offices of BERLEX or such other place designated by the Chairman. A
            quorum for the conduct of business at any meeting of the MARKETING
            COMMITTEE shall consist of at least one representative of
            DISTRIBUTOR and at least one L&I representative. L&I and DISTRIBUTOR
            shall each have one vote and all decisions shall be by unanimous
            vote.

      (c)   By no later than July 1 of each YEAR, commencing with the YEAR in
            which a BLA for the PRODUCT for the CLL INDICATION is obtained,
            DISTRIBUTOR shall submit to the MARKETING COMMITTEE a proposed
            MARKETING PLAN for sales and marketing of each INDICATION for
            PRODUCT which is to be distributed by DISTRIBUTOR in the
            PROFIT-SHARING TERRITORY. The PARTIES will agree to a reasonable
            timetable for the submission of the MARKETING PLAN for the YEAR in
            which initial BLA approval is anticipated. Each MARKETING PLAN shall
            include for the following YEAR: (i) a budget, including an estimate
            of SELLING EXPENSES, MARKETING EXPENSES and other expenses for the
            PRODUCT; (ii) an estimate of PRODUCT to be ordered under Section
            6.1; (iii) a price range for sales of PRODUCT based on a study made
            by an expert selected by the MARKETING COMMITTEE; (iv) an outline of
            marketing and detail strategies and tactics; (v) Phase IV studies,
            if any, for PRODUCT for each INDICATION; and (vi) any other
            information reasonably requested by a member of the MARKETING
            COMMITTEE that is within the possession of DISTRIBUTOR.

            The MARKETING COMMITTEE shall discuss such plan, including any
            proposed amendments and/or additions thereto, and shall decide upon
            a final plan by the end of the third CALENDAR QUARTER of the YEAR in
            which the plan is submitted. The final plan for each INDICATION for
            PRODUCT approved by the MARKETING COMMITTEE is the MARKETING PLAN
            for the following


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<PAGE>

            YEAR. The approved MARKETING PLAN shall provide for a national
            selling effort, inclusion in the BERLEX annual action plan and in
            the BERLEX annual sales incentive compensation plan in a manner that
            does not disadvantage PRODUCT taking into consideration, without
            limitation, PRODUCT profile, size of the market, profit potential,
            approved labeling and reimbursement approval status. Once approved,
            a MARKETING PLAN for a YEAR can only be amended by a decision of the
            MARKETING COMMITTEE.

      (d)   In addition to approval of the MARKETING PLAN, the MARKETING
            COMMITTEE shall discuss, review and monitor marketing of PRODUCT in
            accordance with the MARKETING PLAN therefor, discuss future planning
            for the marketing of PRODUCT for an INDICATION, and coordinate and
            implement any required recall of PRODUCT. It is specifically
            understood, however, that the management and direction of marketing
            and sales activities and the implementation of the MARKETING PLAN
            shall be managed by DISTRIBUTOR rather than the MARKETING COMMITTEE.

            If the MARKETING COMMITTEE fails to reach agreement as to any
            matter, the PARTIES agree to exert all reasonable efforts to arrive
            at a mutually acceptable resolution, including a meeting between the
            Head of the SBU Therapeutics of BERLEX and a manager of the General
            Partner of L&I, and if such resolution is not reached within thirty
            (30) days, and subject to Section 3.2(c), DISTRIBUTOR shall have the
            right to make the final decision except as provided in Sections
            3.1(e), 3.1(f) and 3.1(g), which decisions require the mutual
            consent of DISTRIBUTOR and L&I.

      (e)   DISTRIBUTOR and L&I shall agree to a range of average prices of
            PRODUCT for an INDICATION for a YEAR by no later than November 30th
            of the previous YEAR, and the price charged by DISTRIBUTOR for
            PRODUCT for an INDICATION for a YEAR shall result in an average
            price therefor within the agreed to average price range for such
            YEAR.

      (f)   DISTRIBUTOR and L&I shall agree in writing to the maximum MARKETING
            EXPENSES that can be charged against EARNINGS for PRODUCT for an
            INDICATION in a YEAR by no later than November 30th of the previous
            YEAR.

      (g)   DISTRIBUTOR and L&I shall agree to the maximum PREMARKETING EXPENSES
            and the MAXIMUM SELLING EXPENSES for PRODUCT for each of the OTHER
            INDICATIONS for the purpose of calculating EARNINGS therefor prior
            to BLA approval thereof.

3.2   Marketing Effort of DISTRIBUTOR

      (a) During the term of this AGREEMENT, for each INDICATION for which there
is a MARKETING PLAN, DISTRIBUTOR shall manage and direct the marketing effort
for the PRODUCT pursuant to the MARKETING PLAN approved by the MARKETING


                                       11
<PAGE>


COMMITTEE. DISTRIBUTOR shall exercise commercially reasonable efforts to
promote, market and sell PRODUCT in the PROFIT-SHARING TERRITORY in accordance
with the MARKETING PLAN and shall maintain, at its own cost and expense, an
adequate sales organization for this purpose. DISTRIBUTOR shall keep L&I advised
of general market, economic and regulatory developments that may affect the sale
of such PRODUCT in the PROFIT-SHARING TERRITORY.

      (b)   DISTRIBUTOR agrees to provide L&I with DISTRIBUTOR'S annual sales
            forecast for PRODUCT to be sold in the TERRITORY for each INDICATION
            as to which DISTRIBUTOR retains distribution rights for the purpose
            of assisting L&I in its financial planning. Sales forecasts shall
            not be binding on DISTRIBUTOR.

      (c)   With respect to PRODUCT for the CLL INDICATION in the PROFIT-SHARING
            TERRITORY, the MARKETING PLAN shall provide for efforts with respect
            to marketing and sales that are at least comparable to the efforts
            with respect to FLUDARA(R) prior to expiration of patent protection
            for FLUDARA(R), and in the first twelve (12) months after PRODUCT
            launch for the CLL INDICATION in the PROFIT-SHARING TERRITORY, the
            MARKETING PLAN shall provide for marketing and selling efforts that
            are at least equal to those exerted in the industry with respect to
            oncology products of equivalent potential for such period.


3.3   Earnings Reports.

      (a) In the PROFIT-SHARING TERRITORY, with respect to PRODUCT for the CLL
INDICATION and for each OTHER INDICATION for which DISTRIBUTOR retains
distribution rights, after BLA approval thereof, within thirty (30) days after
the end of each CALENDAR QUARTER of each YEAR, DISTRIBUTOR shall provide L&I
with a separate report of the EARNINGS for PRODUCT for each such INDICATION
(either positive or negative) for the CALENDAR QUARTER. Within sixty (60) days
after the end of each YEAR, DISTRIBUTOR shall provide L&I with a separate report
of EARNINGS for PRODUCT for each INDICATION (either positive or negative) in the
PROFIT-SHARING TERRITORY. Each CALENDAR QUARTER and YEAR report shall contain
the following information:

                  (i) Quantity of PRODUCT sold by DISTRIBUTOR, and its
            AFFILIATES and if applicable, its SUBDISTRIBUTORs.
                  (ii) Total amount invoiced for PRODUCT;
                  (iii) Calculation of NET SALES.
                  (iv) A separate calculation for each of items (i) to (x) to be
            deducted from EARNINGS;
                  (v) Calculation of amount due to or to be paid by L&I under
            Section 3.4 or 3.5, as the case may be; and


                                       12
<PAGE>


                  (vi) Any other information reasonably requested by L&I and
            within the possession of DISTRIBUTOR for determining amount due to
            or to be paid by L&I.

      (b) The reports for each YEAR shall be audited reports and shall be
charged against EARNINGS.

3.4   QUARTERLY PAYMENT OF APPROPRIATE PERCENTAGE.

      (a)   In the PROFIT-SHARING TERRITORY, for each CALENDAR QUARTER in which
            the EARNINGS for PRODUCT for the CLL INDICATION are positive, and
            subject to Section 3.7, for each CALENDAR QUARTER in which the
            EARNINGS for PRODUCT for an OTHER INDICATION for which DISTRIBUTOR
            retains distribution rights are positive, BERLEX shall pay to L&I
            its APPROPRIATE PERCENTAGE of such positive EARNINGS for each such
            INDICATION within sixty (60) days after the end of the applicable
            CALENDAR QUARTER or thirty (30) days after the delivery of the
            report of EARNINGS for such CALENDAR QUARTER, whichever is earlier.

      (b)   For the PROFIT-SHARING TERRITORY for each CALENDAR QUARTER in which
            the EARNINGS for a PRODUCT for the CLL INDICATION are negative and,
            subject to Section 3.7, in each CALENDAR QUARTER in which the
            EARNINGS for PRODUCT for OTHER INDICATIONS for which DISTRIBUTOR
            retains distribution rights are negative, L&I shall pay to
            DISTRIBUTOR the APPROPRIATE PERCENTAGE of such negative EARNINGS for
            each such INDICATION within sixty (60) days after L&I receives the
            report under Section 3.3 that includes such negative EARNINGS.

3.5   YEARLY PAYMENT OF APPROPRIATE PERCENTAGE.

      With respect to the PROFIT-SHARING TERRITORY, within sixty (60) days of
      the end of each YEAR, DISTRIBUTOR shall separately determine EARNINGS for
      PRODUCT for the YEAR for the CLL INDICATION and, subject to Section 3.7,
      for each OTHER INDICATION as to which DISTRIBUTOR retains distribution
      rights and L&I shall receive or pay the APPROPRIATE PERCENTAGE of the
      EARNINGS therefor for the applicable YEAR, adjusted for the aggregate of
      the amounts received and/or paid by L&I under Section 3.4 for the CALENDAR
      QUARTERS of the appropriate YEAR. Any payment due from DISTRIBUTOR shall
      be made within ninety (90) days of the end of the applicable YEAR, or
      thirty (30) days after delivery of the report of EARNINGS for such YEAR,
      whichever is earlier. Any payment due to DISTRIBUTOR shall be made within
      thirty (30) days after L&I receives the yearly report under Section 3.3.


                                       13
<PAGE>


3.6   CREDIT TOWARD LOAN BALANCE.

      For each YEAR in which EARNINGS are positive, beginning five YEARS after
      launch of PRODUCT for an INDICATION in the PROFIT-SHARING TERRITORY, until
      the outstanding portion of the loans made pursuant to Section 9.1(a) and
      the interest thereon is repaid, in addition to the amounts payable under
      Section 3.4 and 3.5, L&I shall be credited with an additional ******6
      percent of positive EARNINGS for PRODUCT for each INDICATION, if any,
      within sixty (60) days after the end of the YEAR, which DISTRIBUTOR shall
      retain and apply to repayment of the outstanding portion of the loan and
      interest thereon made pursuant to Section 9^.1(a).

3.7   PAYMENT IN LIEU OF EARNINGS.

      In the event that L&I does exercise its OPT OUT OPTION with regard to
      development of PRODUCT for an OTHER NON-CANCER INDICATION in the PROFIT
      SHARING TERRITORY, and DISTRIBUTOR continues such funding and BLA approval
      for PRODUCT for such OTHER NON-CANCER INDICATION is obtained, L&I shall
      not be required to make or entitled to receive payments under Sections 3.4
      and 3.5 based on EARNINGS in the PROFIT SHARING TERRITORY, and in lieu
      thereof, L&I shall receive ******7 percent of NET SALES of PRODUCT for
      such OTHER INDICATION in the PROFIT SHARING TERRITORY which shall be due
      and payable with respect to NET SALES thereof in a CALENDAR QUARTER within
      sixty (60) days after the end of the CALENDAR QUARTER. In addition, the
      report due under Section 3.3 for a PRODUCT for such OTHER NON-CANCER
      INDICATION may only include items (i), (ii), (iii) and (vi) and a
      calculation of the amount due under this Section 3.7.




3.8   RECORDKEEPING BY DISTRIBUTOR.

      DISTRIBUTOR shall keep, and shall cause each of its AFFILIATES to keep,
      and if applicable, their SUBDISTRIBUTORs, full and accurate books of
      account containing all particulars that may be necessary for the purpose
      of calculating EARNINGS and NET SALES and all payments payable to L&I in
      the PROFIT-SHARING TERRITORY for PRODUCT sold in the PROFIT-SHARING
      TERRITORY. Such books of account shall be kept at their principal place of
      business and, with all necessary supporting data shall, for the three (3)
      years next following the end of the calendar year to which each shall
      pertain be open for inspection by an independent certified accountant
      selected by L&I

- ------------------------
      6"Confidential treatment requested: material has been omitted and filed
separately with the Commission".

      7/"Confidential treatment requested: material has been omitted and filed
separately with the Commission".


                                       14
<PAGE>

      and reasonably acceptable to DISTRIBUTOR upon reasonable notice during
      normal business hours at L&I's expense for the sole purpose of verifying
      payments or compliance with this AGREEMENT, but in no event (subject to
      Section 13.16) more than once in each YEAR. All information and data
      offered shall be used only for the purpose of verifying payments. In the
      event that such inspection shall indicate that in any YEAR the payments
      which should have been paid by DISTRIBUTOR are at least five percent (5%)
      greater than those which were actually paid by DISTRIBUTOR, or that, in
      the case of negative EARNINGS, the amounts that were paid by L&I to
      DISTRIBUTOR are at least five percent (5%) more than those that should
      have been paid by L&I, then DISTRIBUTOR shall pay the cost of such
      inspection. All underpayments and overpayments are immediately due and
      payable.

3.9   CO-PROMOTION.

      (a)   L&I shall have the right itself and/or to designate one or more of
            either LEUKOSITE or ILEX to co-promote with DISTRIBUTOR or its
            AFFILIATE, as the case may be, in the PROFIT-SHARING TERRITORY,
            PRODUCT for the CLL INDICATION and OTHER CANCER INDICATIONS by
            written notice to DISTRIBUTOR at least six (6) months prior to the
            contemplated initiation of such co-promotion.

      (b)   The co-promoting PARTY shall co-promote such PRODUCT in a YEAR in
            accordance with the approved MARKETING PLAN for such YEAR through
            MSL activities. The number of personnel employed to co-promote shall
            not exceed twelve in the United States, and shall only conduct
            activities similar to those conducted by BERLEX'S MSL staff.
            DISTRIBUTOR and L&I will coordinate the activities of the L&I MSL
            staff to optimize utilization and avoid duplication of effort.

      (c)   For each CALENDAR QUARTER, DISTRIBUTOR shall pay to the co-promoting
            PARTY direct expenses for the MSL force and MSL force management,
            all only as it relates to co-promotion of PRODUCT under this Section
            3.9 which shall be due and payable sixty (60) days after submission
            of an invoice therefor, but shall not exceed the average cost
            incurred by BERLEX for its own MSL staff members assigned to PRODUCT
            for an oncology indication. DISTRIBUTOR shall have the right to
            audit the expenses charged to DISTRIBUTOR pursuant to this Section
            on the same terms set forth in Section 6.12 for L&I's audits of
            DISTRIBUTOR.

      (d)   L&I shall have the right to terminate the co-promotion by six (6)
            months' prior written notice.

3.10  PAYMENT OF INSURANCE PREMIUMS

      DISTRIBUTOR shall pay the cost and expense of insurance premiums for L&I
      with respect to PRODUCT in the PROFIT SHARING TERRITORY, including product


                                       15
<PAGE>



      liability insurance but excluding product liability expenses, such as the
      cost of defense, settlement and damage, within thirty (30) days of invoice
      therefor. The payment made under this Section 3.10 shall be deductible
      against EARNINGS.

4.    MARKETING IN THE OTHER TERRITORY

4.1   SALES FORECAST

      The DISTRIBUTOR agrees to provide L&I with DISTRIBUTOR'S annual sales
      forecast for PRODUCT to be sold in the OTHER TERRITORY for each INDICATION
      as to which DISTRIBUTOR retains distribution rights for the purpose of
      assisting L&I in its financial planning. Sales forecasts shall not be
      binding on the DISTRIBUTOR.

4.2   MARKETING EFFORTS

      (a)   In MAJOR COUNTRIES, DISTRIBUTOR shall exert reasonable commercial
            efforts to market and sell PRODUCT for each INDICATION in each
            country in which such PRODUCT is approved for sale. Such reasonable
            commercial efforts shall take into consideration, without
            limitation, PRODUCT profile, size of the market, profit potential,
            approved labeling, reimbursement approval status, and other factors
            that a reasonable business person would take into consideration in
            determining the extent of effort to exert in the marketing and
            selling of PRODUCT.

      (b)   In countries of the OTHER TERRITORY which are not MAJOR COUNTRIES,
            DISTRIBUTOR shall notify L&I, in writing, as to whether it intends
            to pursue commercialization of a PRODUCT for an INDICATION as to
            which DISTRIBUTOR retains distribution rights no later than ninety
            (90) days after regulatory approval thereof in Europe. With respect
            to any countries as to which DISTRIBUTOR does not provide such
            written notice, or, having given notice, subsequently notifies L&I
            of an intention not to pursue commercialization, L&I or DISTRIBUTOR
            shall have the right to grant distribution rights in such country to
            a THIRD PARTY by sixty (60) days' prior written notice to the other,
            identifying the country(ies), the THIRD PARTY and the terms and
            conditions thereof. Unless the PARTY receiving the notice provides
            reasonable written objection thereto within such sixty (60) day
            period on the basis that the granting of such rights will adversely
            affect marketing and sale of PRODUCT for such INDICATION in a
            country in which PRODUCT is being, or is to be, distributed by
            DISTRIBUTOR, or to the terms and conditions of the distribution
            rights, then such distribution rights shall be granted to such THIRD
            PARTY and L&I, and DISTRIBUTOR shall share, on a ****** ******8
            basis, respectively, the costs and benefits incurred with respect to
            the granting of such distribution rights.

- ------------------------
      8"Confidential treatment requested: material has been omitted and filed
separately with the Commission".***


                                       16
<PAGE>


      (c)   With respect to PRODUCT for an INDICATION to which SCHERING has
            distribution rights, SCHERING agrees to provide to L&I a separate
            marketing plan for PRODUCT for each INDICATION for each MAJOR
            COUNTRY of the OTHER TERRITORY and an aggregate marketing plan for
            all other countries of the OTHER TERRITORY for each YEAR by October
            1 of the previous YEAR, which marketing plan shall contain
            information similar to that included in marketing plans for
            DISTRIBUTOR'S product in such countries that qualify for primary
            promotion (for example FLUDARA(R)) and within sixty (60) days after
            the end of each YEAR, DISTRIBUTOR shall provide L&I with a written
            report with respect to the results for the applicable YEAR as
            compared to the marketing plan for the applicable YEAR for each
            country in the OTHER TERRITORY for PRODUCT for each INDICATION.

5.    ORPHAN DRUG EXCLUSIVITY.

      (a)   To the fullest extent permitted by law, the PARTIES agree that
            DISTRIBUTOR will have the right to claim and use any taxation
            credits (accruing to DISTRIBUTOR after the Effective Date),
            deductions or other taxation benefits available as a result of
            funding by DISTRIBUTOR, in whole or part, of clinical studies for an
            INDICATION for PRODUCT that has been designated as an orphan
            indication by FDA, and similar taxation benefits available in other
            countries of the TERRITORY. L&I agrees that it will take such
            reasonable actions as DISTRIBUTOR may request to permit DISTRIBUTOR
            to obtain such taxation benefits, including without limitation
            sharing with DISTRIBUTOR ownership of orphan drug petitions,
            designations, and grants of exclusivity; provided, however, that L&I
            shall not be required by this Section to share with DISTRIBUTOR
            ownership or sponsorship of any BLA for PRODUCT. With respect to any
            transfer of rights or ownership under this Section 5, such transfer
            shall be made in a manner such that such rights and/or ownership by
            DISTRIBUTOR is automatically terminated when DISTRIBUTOR'S rights to
            PRODUCT for the applicable INDICATION are terminated under this
            AGREEMENT. For avoidance of doubt, the PARTIES state that if L&I has
            complied with the requirements of this Section, L&I shall have no
            liability to DISTRIBUTOR in the event that DISTRIBUTOR is unable to
            avail itself of favorable taxation treatment contemplated by this
            Section.

      (b)   DISTRIBUTOR shall have the right to nominate one or more of
            DISTRIBUTOR'S AFFILIATES to exercise the rights set forth in this
            section.

6.    PURCHASE OF PRODUCTS

6.1   PURCHASE AND SALE REQUIREMENTS.

      (a)   Subject to Section 6.3 and Section 8, L&I shall sell and DISTRIBUTOR
            shall purchase an amount of FINAL FORM PRODUCT or FILLED PRODUCT as


                                       17
<PAGE>

            applicable for INDICATIONS equal to DISTRIBUTOR'S requirements in
            the TERRITORY.

      (b)   Subject to availability of FINAL FORM PRODUCT or FILLED PRODUCT as
            applicable from L&I, DISTRIBUTOR shall maintain sufficient
            inventories of PRODUCT to enable DISTRIBUTOR to effectively satisfy
            demand for PRODUCT in the TERRITORY.

      (c)   Unless otherwise agreed between the PARTIES, L&I shall sell and
            DISTRIBUTOR shall purchase PRODUCT as FINAL FORM PRODUCT for sale in
            the PROFIT-SHARING TERRITORY and as FILLED PRODUCT for production of
            FINAL FORM PRODUCT for sale in the OTHER TERRITORY.

      (d)   DISTRIBUTOR shall purchase from L&I 60,000 ampoules of FILLED
            PRODUCT in October 1999; 90,000 ampoules of FILLED PRODUCT in
            January 2000, and 60,000 ampoules of FILLED PRODUCT in April 2000.
            With respect to the FILLED PRODUCT purchased under this Section
            6.1(d), title to and risk of loss with respect to FILLED PRODUCT
            shall pass to DISTRIBUTOR when produced by BI. BI shall maintain
            possession of the FILLED PRODUCT until DISTRIBUTOR requests shipment
            thereof as FINAL FORM PRODUCT or FILLED PRODUCT. DISTRIBUTOR shall
            pay to L&I the COST OF GOODS for the FILLED PRODUCT that has been
            incurred as of such time within thirty (30) days of invoice
            therefor, which shall be no earlier than the date that FILLED
            PRODUCT is produced by BI. FILLED PRODUCT purchased under this
            Section 6.1(d) that is to be sold by DISTRIBUTOR in the
            PROFIT-SHARING TERRITORY shall be converted to FINAL FORM PRODUCT by
            BI. FILLED PRODUCT that is purchased by DISTRIBUTOR that is to be
            sold in the OTHER TERRITORY shall be converted to FINAL FORM PRODUCT
            by DISTRIBUTOR. At the time of shipment of PRODUCT to DISTRIBUTOR
            under this Section 6.1(d), DISTRIBUTOR shall pay to L&I the COST OF
            GOODS therefor, less any portion of COST OF GOODS previously paid
            under this Section 6.1(d). The COST OF GOODS of such ampoules sold
            in the PROFIT-SHARING TERRITORY shall be charged against EARNINGS
            when sold. DISTRIBUTOR and L&I agree that they will cooperate with
            each other and use all reasonable efforts to obtain the agreement of
            BI to reduce the quantity that is to be purchased under this Section
            6.1(d). In the event that a surcharge is paid to BI under the BI
            AGREEMENT for failure to make the minimum purchases required by
            Section 2.8 of the BI AGREEMENT in the first full YEAR after launch
            of the PRODUCT, then as to the portion of the minimum purchase
            deficiency that results from the purchase of excess inventory under
            Section 6.1(d), DISTRIBUTOR shall have the right to credit
            one-twentieth of the amount paid by DISTRIBUTOR for such portion
            under Section 8.2(iv) against amounts to be paid to L&I under
            Section 3.4(a) for the first twenty CALENDAR QUARTERS. If EARNINGS
            in any such first twenty CALENDAR QUARTERS should be negative, the
            amount payable by L&I to DISTRIBUTOR pursuant to Section 3.4(b) will
            be increased by one-


                                       18
<PAGE>


            twentieth of the amount paid by DISTRIBUTOR for such portion under
            Section 8.2(iv).

6.2   CERTAIN PACKAGING AND LABELING BY DISTRIBUTOR.

      (a)   In view of DISTRIBUTOR'S expertise in the production and release of
            pharmaceutical products, and taking into account DISTRIBUTOR'S
            experience in dealing with and proximity to BI, it is agreed that
            DISTRIBUTOR shall carry out the following activities in respect of
            PRODUCT to be sold in the OTHER TERRITORY: (i) labeling and
            packaging of FILLED PRODUCT to produce FINAL FORM PRODUCT; and (ii)
            quality assurance and quality control services necessary to provide
            for final release of FINAL FORM PRODUCT. Only DISTRIBUTOR'S direct
            costs and expenses with respect to the activities to be performed
            pursuant to this Section 6 (including loss for normal packaging
            losses) shall be COST OF GOODS for Section 6.7(a)(v).

      (b)   With respect to the services described in Section 6.2(a),
            DISTRIBUTOR warrants and represents that the FINAL FORM PRODUCT to
            be produced by DISTRIBUTOR for L&I hereunder shall be labeled,
            packaged and released in accordance with the SPECIFICATIONS, and
            such services shall be performed according to Good Manufacturing
            Practices standards and known and published standards of EMEA
            applicable as of the time the activities performed by DISTRIBUTOR
            are undertaken, and in accordance with all other laws, rules and
            regulations applicable in the country where the activities are
            performed. DISTRIBUTOR further warrants and represents that the
            activities being performed by DISTRIBUTOR shall not result in any
            lien or claim on PRODUCT which affects title. DISTRIBUTOR makes no
            other warranties and representations with respect to the activities
            to be performed by DISTRIBUTOR pursuant to this Section.

6.3   PRIORITY IN SUPPLY.

      L&I shall use commercially reasonable efforts to satisfy DISTRIBUTOR'S
      requirements for FINAL FORM PRODUCT or FILLED PRODUCT as applicable.
      However, L&I's obligation to supply FINAL FORM PRODUCT or FILLED PRODUCT,
      as applicable, under Section 6.1 hereof shall at all times be subject to
      the condition that L&I is able to obtain a sufficient supply of such
      PRODUCT for sale both inside and outside of the TERRITORY. In the event
      that PRODUCT available to L&I is in short supply, L&I shall notify
      DISTRIBUTOR of such shortage as soon as possible. In the event there is a
      short supply of PRODUCT and L&I cannot supply PRODUCT to DISTRIBUTOR in an
      amount equal to DISTRIBUTOR'S FIRM ORDER, then L&I shall allocate
      available PRODUCT to DISTRIBUTOR in each month that such a shortfall
      exists in an amount equal to the product of (i) the amount of available
      PRODUCT for that month (and in each month thereafter until the shortfall
      to DISTRIBUTOR is remedied) and (ii) a fraction the numerator of which is
      the aggregate quantity of FIRM ORDERS made by DISTRIBUTOR over the
      subsequent twelve (12) month period including the shortfall


                                       19
<PAGE>

      months and (y) the aggregate quantity of PRODUCT over the same twelve (12)
      month period required by L&I outside the TERRITORY by reference to FIRM
      ORDERS placed with THIRD PARTY manufacturers for L&I's requirements.

6.4   TITLE, RISK.

      (a)   Except as provided in Section 6.1(d), title to FINAL FORM PRODUCT or
            FILLED PRODUCT sold hereunder shall pass to DISTRIBUTOR when L&I
            delivers FINAL FORM PRODUCT or FILLED PRODUCT to DISTRIBUTOR. Except
            as provided in Section 6.1(d), risk of loss of or damage to FINAL
            FORM PRODUCT or FILLED PRODUCT shall pass to DISTRIBUTOR upon
            delivery to DISTRIBUTOR. The cost of freight and insurance for
            delivery of PRODUCT (either as FILLED PRODUCT or as FINAL FORM
            PRODUCT to DISTRIBUTOR'S designated destination shall be paid by
            L&I. The common carrier shall be designated by DISTRIBUTOR.

      (b)   In the United States, DISTRIBUTOR shall maintain or cause any person
            or entity that is in possession of PRODUCT to maintain insurance
            against loss or destruction of PRODUCT, or in the alternative have
            in place a reasonable program of self insurance. Insurance premiums
            for such insurance of DISTRIBUTOR may be deducted from EARNINGS.

6.5   SUPERIORITY OF AGREEMENT.

      The PARTIES agree that the provisions of this AGREEMENT shall prevail over
      any inconsistent statements or terms contained in any other documents
      passing between the PARTIES, such as, but not limited to, any purchase
      order, acknowledgement, confirmation or notice.

6.6   PRICE FOR PROFIT-SHARING TERRITORY.

      The price for PRODUCT sold to DISTRIBUTOR for sale in the PROFIT SHARING
      TERRITORY shall be the COST OF GOODS for FINAL FORM PRODUCT, and shall be
      due and payable within thirty (30) days of invoice therefor, which shall
      be no earlier than date of shipment of FINAL FORM PRODUCT.



                                       20
<PAGE>

6.7   PRICE FOR OTHER TERRITORY.

      (a)   The price of PRODUCT to be sold in the OTHER TERRITORY shall be the
            sum of :

                  (i) The COST OF GOODS for FILLED PRODUCT which shall be due
                  and payable within thirty (30) days of invoice therefor, which
                  shall be no earlier than date of shipment of FILLED PRODUCT ;
                  plus

                  (ii) Subject to sub-sections 6.7(a)(iii), (iv) and (v) below,
                  ******9 of NET SALES of PRODUCT for an INDICATION sold in a
                  country in the OTHER TERRITORY.

                  (iii) In the event that L&I exercises its OPT-OUT OPTION in
                  respect of a PRODUCT for an OTHER NON-CANCER INDICATION, the
                  portion of the price to be paid under Section 6.7(a)(ii) shall
                  be reduced to ******10.

                  (iv) In the event that one or more THIRD PARTY(IES) sells a
                  generic equivalent of PRODUCT for an INDICATION in any country
                  of the OTHER TERRITORY in any YEAR in an aggregate amount such
                  that the quantity of units of PRODUCT sold by the generic
                  intruder is equal to at least twenty percent (20%) of
                  DISTRIBUTOR's sales volume of units of PRODUCT for such
                  INDICATION in such country for such YEAR (such test to be
                  calculated using an equivalent volume of PRODUCT per unit, as
                  measured by IMS data, or data of another market research
                  company agreed by the PARTIES if IMS data are not available),
                  the portion of the price to be paid under Section 6.7(a)(ii)
                  above shall be reduced to ******11 for such PRODUCT for such
                  INDICATION in such country of such YEAR or pro-rated part
                  thereof, as applicable. The adjustment required by the
                  preceding portion of this Section 6.7(a)(iv) shall be made by
                  adjusting the payment for the last CALENDAR QUARTER for the
                  applicable YEAR. In the event that DISTRIBUTOR can demonstrate
                  that the portion of the price paid for PRODUCT for an
                  INDICATION in a country in a YEAR under this Section
                  6.7(a)(iv) is more than ******12 times the amount earned by
                  DISTRIBUTOR (calculated in a manner similar to EARNINGS), then
                  the payment for that

- ------------------------
      9 "Confidential treatment requested: material has been omitted and filed
separately with the Commission".
      10 "Confidential treatment requested: material has been omitted and filed
separately with the Commission".
      11 "Confidential treatment requested: material has been omitted and filed
separately with the Commission".
      12 "Confidential treatment requested: material has been omitted and filed
separately with the Commission".



                                       21
<PAGE>


                  YEAR for PRODUCT for that INDICATION in such country under
                  this Section 6.7(a)(iv) shall be adjusted by adjusting such
                  payment for the last CALENDAR QUARTER so that such payments
                  for that YEAR are no greater than ******13 times such
                  earnings. In the event that the circumstances described in
                  Section 6.7(a)(iii) and 6.7(a)(iv) both apply, the payment for
                  the relevant YEAR for PRODUCT in the relevant country and
                  relevant INDICATION shall be the lower of the two rates
                  applicable under such two Sections.

                        (v) In the event that in a CALENDAR QUARTER in a country
                  in the OTHER TERRITORY the sum of the COST OF GOODS (which
                  includes the limitation of Section 6.2(a)) and THIRD PARTY
                  ROYALTIES (including royalties paid pursuant to Section 13.14)
                  for a PRODUCT in such CALENDAR QUARTER exceeds ******14 of NET
                  SALES in such country, then the amount to be paid therefor
                  under Section 6.7(a)(ii) shall be reduced by subtracting
                  therefrom ******15 for each one percent by which such sum
                  exceeds ******16. For example, if the royalty rate is ******17
                  and the sum is ******18, then the ******19 from Section
                  6.7(a)(ii) is reduced to ******20. This Section 6.7(a)(iv) is
                  not applicable to payments under Section 6.7(a)(ii) that have
                  been reduced under Section 6.7(a)(iv) The adjustment required
                  by this Section 6.7(a)(v) shall be made within sixty (60) days
                  after the end of each YEAR for each applicable CALENDAR
                  QUARTER of such YEAR.


6.8   THIRD PARTY ROYALTIES.

      (a)   In addition to any other payments due under this AGREEMENT in the
            TERRITORY, DISTRIBUTOR shall reimburse to L&I all THIRD PARTY
            ROYALTIES for the CLL INDICATION and for OTHER INDICATIONS as to

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

      13 "Confidential treatment requested: material has been omitted and filed
separately with the Commission".
      14 "Confidential treatment requested: material has been omitted and filed
separately with the Commission".
      15 "Confidential treatment requested: material has been omitted and filed
separately with the Commission".
      16 "Confidential treatment requested: material has been omitted and filed
separately with the Commission".
      17 "Confidential treatment requested: material has been omitted and filed
separately with the Commission".
      18 "Confidential treatment requested: material has been omitted and filed
separately with the Commission".
      19 "Confidential treatment requested: material has been omitted and filed
separately with the Commission".
      20 "Confidential treatment requested: material has been omitted and filed
separately with the Commission".


                                       22
<PAGE>

            which DISTRIBUTOR retains distribution rights. L&I shall provide to
            DISTRIBUTOR a schedule specifying when such THIRD PARTY ROYALTIES
            are payable, and DISTRIBUTOR shall make such payments to L&I at
            least fifteen (15) days prior to the time that L&I is required to
            make such THIRD PARTY payment.

      (b)   In the event that it is necessary for L&I to enter into a license
            agreement with a THIRD PARTY in order for DISTRIBUTOR to be able to
            sell or continue to sell PRODUCT in the TERRITORY or for L&I to
            supply PRODUCT to DISTRIBUTOR, L&I shall notify DISTRIBUTOR as soon
            as it becomes aware of such necessity. L&I shall negotiate such
            license agreement in good faith taking into account any comments
            made by DISTRIBUTOR. A THIRD PARTY shall be added to Appendix G only
            with the consent of DISTRIBUTOR, which consent shall not be
            unreasonably withheld or delayed. Any disagreement under this
            Section 6.8(b) as to the reasonableness of adding a THIRD PARTY
            license to Appendix G shall be resolved by arbitration pursuant to
            Section 19.6.

      (c)   In the TERRITORY, L&I agrees to pay royalties to a THIRD PARTY to
            the extent that DISTRIBUTOR has paid L&I royalties pursuant to this
            Section 6.8. Outside of the TERRITORY, L&I shall make royalty
            payments that are due under any license agreement that is included
            in Appendix G.

      (d)   In the event that a THIRD PARTY disputes any royalty payment with
            respect to PRODUCT in the TERRITORY pursuant to a license of
            Appendix G, until such dispute is resolved, DISTRIBUTOR shall pay
            the disputed amount. DISTRIBUTOR and L&I shall cooperate in good
            faith to resolve such dispute so that DISTRIBUTOR is not obliged to
            pay THIRD PARTY ROYALTIES which L&I is not contractually obliged to
            pay under the applicable THIRD PARTY licenses in respect of sales of
            PRODUCT by DISTRIBUTOR, its AFFILIATES or their SUBDISTRIBUTORS in
            the TERRITORY.

6.9   PAYMENT FOR PRODUCT.

      The portion of the price for PRODUCT set forth in Section 6.7(a)(ii) shall
      be paid within sixty (60) days after the CALENDAR QUARTER in which PRODUCT
      is sold.

6.10  DELIVERY OF ACCOUNTING.

      (a) Within sixty (60) days after the end of each CALENDAR QUARTER,
      DISTRIBUTOR shall deliver to L&I a full and accurate accounting with
      respect to PRODUCT sold in the OTHER TERRITORY as follows:

            (i) Quantity of each PRODUCT sold by transaction type (by country)
      by DISTRIBUTOR, and its AFFILIATES and if applicable, it's
      SUBDISTRIBUTORs.

            (ii) Gross Sales.


                                       23
<PAGE>

            (iii) Calculation of NET SALES (by country) in local currency.

            (iv) Exchange rates for converting each local currency into U.S.
      Dollars for each month of the CALENDAR QUARTER.

            (v) NET SALES in U.S. dollars in each country.

            (vi) Calculation of total compensation payable to L&I.

            (vii) COST OF GOODS to the extent that DISTRIBUTOR is claiming a
      reduction under Section 6.7(a)(v).

            (viii) To the extent that an adjustment under Section 6.7(a)(iv) is
      claimed by DISTRIBUTOR, the information and accounting that demonstrates
      that the requirements of Section 6.7(a)(iv) have been met.

            (ix) Any other information reasonably requested by L&I and in the
      possession of DISTRIBUTOR.

      (b)   To the extent that CALENDAR QUARTER gross sales information of
            AFFILIATES and SUBDISTRIBUTORS required by Section 6.10(a) is not
            within the possession of DISTRIBUTOR, then DISTRIBUTOR shall be
            excused from reporting such gross sales on a CALENDAR QUARTERLY
            basis and instead for such countries the following information will
            be submitted in lieu of CALENDAR QUARTERLY gross sales as part of
            the accounting, with the CALENDAR QUARTERLY accounting for the
            fourth CALENDAR QUARTER, DISTRIBUTOR shall report total gross sales
            for the applicable YEAR for at least the MAJOR COUNTRIES and the ten
            (10) additional countries of the OTHER TERRITORY with the highest
            NET SALES of PRODUCT; provided, however, that if the NET SALES of
            the countries of the OTHER TERRITORY for which DISTRIBUTOR reports
            annual gross sales in lieu of CALENDAR QUARTERLY gross sales, and
            the countries of the OTHER TERRITORY for which DISTRIBUTOR reports
            gross sales on a CALENDAR QUARTERLY basis do not equal at least
            seventy-five percent (75%) of the total NET SALES of the OTHER
            TERRITORY, then DISTRIBUTOR shall report annual gross sales of such
            additional countries of the OTHER TERRITORY as shall be necessary
            such that the countries of the OTHER TERRITORY for which DISTRIBUTOR
            is reporting gross sales at least on an annual basis equals or
            exceeds the seventy five percent (75%) test. If the foregoing
            sentence becomes operative for any country of the OTHER TERRITORY,
            then DISTRIBUTOR shall promptly make available to L&I a copy of the
            relevant parts of DISTRIBUTOR'S accounting handbook, which describes
            how controllers within DISTRIBUTOR'S AFFILIATES are to account for
            NET SALES.


                                       24
<PAGE>


6.11  CURRENCY CONVERSION.

      Payments by DISTRIBUTOR to L&I under this Agreement shall be made in U.S.
      dollars. Except for NET SALES in the United States, where payments are
      based on NET SALES in countries other than the member states of the
      European Currency Union, the amount of such payments expressed in the
      currency of each country shall be converted into Euro at the exchange rate
      of the last date of the applicable CALENDAR QUARTER. The applicable
      exchange rate will be the EURO foreign exchange reference spot rate
      published daily by the European Central Bank, Frankfurt / Main. If no EURO
      foreign exchange reference spot rate is determined for the relevant
      currency, the PARTIES shall agree upon another reference rate. Finally,
      the payable EURO amount shall be converted into US Dollars by the EURO
      foreign exchange reference spot rate published by the European Central
      Bank, Frankfurt / Main, at the last day of the applicable CALENDAR
      QUARTER. These EURO foreign exchange reference spot rates are currently
      published by REUTERS on screen "ECB37".

6.12  RECORDKEEPING BY DISTRIBUTOR.

      (a)   DISTRIBUTOR shall keep, and shall cause each of its AFFILIATES to
            keep, and if applicable, their SUBDISTRIBUTORs, full and accurate
            books of account containing all particulars that may be necessary
            for the purpose of calculating NET SALES and all payments payable to
            L&I for PRODUCT in the OTHER TERRITORY. Such books of account shall
            be kept at their principal place of business and, with all necessary
            supporting data shall, for the three (3) years next following the
            end of the calendar year to which each shall pertain be open for
            inspection by an independent certified accountant selected by L&I
            and reasonably acceptable to DISTRIBUTOR upon reasonable notice
            during normal business hours at L&I's expense for the sole purpose
            of verifying payments or compliance with this AGREEMENT, but in no
            event (subject to Section 13.16) more than once in each YEAR. All
            information and data offered shall be used only for the purpose of
            verifying payments. In the event that such inspection shall indicate
            that in any YEAR that the payments which should have been paid by
            DISTRIBUTOR are at least five percent (5%) greater than those which
            were actually paid by DISTRIBUTOR, DISTRIBUTOR shall pay the cost of
            such inspection. All underpayments and overpayments are immediately
            due and payable.

      (b)   At the request of L&I, DISTRIBUTOR shall provide beginning and
            ending inventories for each of up to ten (10) countries of the OTHER
            TERRITORY for a requested YEAR, provided, however, that such request
            shall be made no more than once each YEAR.

6.13  MANUFACTURER OTHER THAN BI.

      (a)   L&I is currently supplying PRODUCT to DISTRIBUTOR that is
            manufactured under the BI AGREEMENT. In the event that L&I intends
            to supply PRODUCT


                                       25
<PAGE>

            to DISTRIBUTOR manufactured by an entity other than BI (either in
            place of PRODUCT manufactured by BI or in addition to PRODUCT
            manufactured by BI), then L&I shall provide written notice thereof
            to DISTRIBUTOR. L&I shall have the right to supply PRODUCT to
            DISTRIBUTOR manufactured by the entity identified in L&I's notice
            unless such entity is unsuitable for at least one of the following
            reasons and within thirty (30) days after receipt of L&I's notice
            DISTRIBUTOR notifies L&I that it objects to receiving PRODUCT
            manufactured by the entity identified in L&I's notice for at least
            one of the following reasons: the proposed manufacturer (i) has a
            documented history of non-compliance with specifications, laws and
            regulations governing the manufacture of pharmaceutical products; or
            (ii) has a documented history of material failure to deliver
            products in accordance with the customer's delivery schedule; or
            (iii) is in litigation with DISTRIBUTOR, or DISTRIBUTOR, at the
            time, in good faith, notifies L&I that DISTRIBUTOR expects to be in
            litigation with such manufacturer . If L&I disagrees with
            DISTRIBUTOR that the asserted ground or grounds is applicable, the
            issue shall be submitted to arbitration under Section 19.6.

      (b)   L&I shall specify, in the notice provided for in sub-section 6.13(a)
            above: (i) its reasons for proposing a change of and/or an
            additional manufacturer; (ii) a reasonable forecast of the aggregate
            cost to L&I therefor, including all costs of obtaining regulatory
            approval of the manufacturer in the TERRITORY; and (iii) the
            financial and other benefits which L&I expects will result from such
            a change of manufacturer. Within sixty days of receipt of such
            notice, DISTRIBUTOR shall notify L&I in writing whether DISTRIBUTOR
            is willing to bear ******21 of the costs of effecting such a change
            of and/or an additional manufacturer. If DISTRIBUTOR is not willing
            to bear ******22 of such costs and L&I nevertheless proceeds to make
            the proposed change, the COST OF GOODS for PRODUCT supplied by such
            new manufacturer shall be deemed to be the same as the average COST
            OF GOODS of PRODUCT supplied by BI in the three calendar years
            preceding such change of and/or an additional manufacturer. If
            DISTRIBUTOR agrees to bear ******23/ of such costs, L&I shall
            consult with DISTRIBUTOR on the negotiation of the agreement with
            the new manufacturer and L&I shall not, without the prior written
            consent of DISTRIBUTOR, enter into any agreement which provides for
            costs to L&I and DISTRIBUTOR in excess of those included in the
            forecast referred to in (ii) above or which includes terms
            materially more adverse in their effect on DISTRIBUTOR than the
            terms of the BI Agreement.

      (c)   If DISTRIBUTOR has objected to the alternative or additional
            manufacturer proposed by L&I pursuant to sub-section 6.13(a) above,
            then the sixty day period

- ------------------------
      21 "Confidential treatment requested: material has been omitted and filed
separately with the Commission".
      22 "Confidential treatment requested: material has been omitted and filed
separately with the Commission".

                                       26
<PAGE>


            specified in sub-section 6.13(b) above shall not start until
            DISTRIBUTOR has withdrawn such objection or an arbitrator has
            decided that DISTRIBUTOR does not have grounds for such objection,
            whichever is the earlier.

      (d)   In the event that there is a new manufacturer as a result of BI
            failing to meet BI's obligations under the BI AGREEMENT and/or BI
            terminating the BI AGREEMENT and/or expiration of the BI AGREEMENT
            and/or BI not having the capacity to produce PRODUCT forecasted by
            L&I and/or DISTRIBUTOR, then notwithstanding Section 6.13(b),
            DISTRIBUTOR shall bear one-third of the cost of effecting a change
            in and/or providing an additional manufacturer.

      (e)   In the event that L&I intends to change the process for
            manufacturing PRODUCT, DISTRIBUTOR shall be provided notice thereof
            as provided in Section 6.13(a). In addition to DISTRIBUTOR'S rights
            under Section 6.13(a), DISTRIBUTOR shall have the right to object to
            a manufacturer and/or a change to the process on the basis that it
            will put the PRODUCT at risk in the marketplace by written objection
            to L&I within thirty (30) days after such notice from L&I. The
            PARTIES shall then exert reasonable efforts to insure that such
            change in process or change in manufacturer does not put the PRODUCT
            at risk in the marketplace.

6.14  ALTERNATE FORECASTING/ORDERING PROCEDURES.

      In the event that L&I is supplying PRODUCT to DISTRIBUTOR that is being
      manufactured for L&I by a manufacturer other than BI, then DISTRIBUTOR
      shall provide forecasts and place orders under this AGREEMENT in a manner
      that is consistent with the manufacturer's requirements.

7.    PAYMENT

7.1   (a)   All payments under this AGREEMENT shall be remitted in immediately
            available funds.

      (b)   In the event that any payment due hereunder is not made when due,
            the payment shall accrue interest beginning on the first day of the
            month following the date when such payment was due, at PRIME plus
            one percent, the interest being compounded on the last day of each
            calendar month; provided that in no event shall said annual rate
            exceed the maximum legal interest rate for corporations. Such
            payment when made shall be accompanied by all interest accrued. Said
            interest and the payment and acceptance thereof shall not negate or
            waive the right of the receiving PARTY to any other remedy, legal or
            equitable, to which the receiving PARTY may be entitled because of
            the delinquency of the payment.

8.    BI AGREEMENT


                                       27
<PAGE>


8.1   ACTIVITIES UNDER BI AGREEMENT.

      (a)   DISTRIBUTOR has been provided with a copy of the BI AGREEMENT and
            acknowledges and agrees that PRODUCT to be supplied by L&I to
            DISTRIBUTOR that will be manufactured and supplied under the BI
            AGREEMENT is subject to the terms and conditions of the BI
            AGREEMENT.

      (b)   L&I and DISTRIBUTOR shall agree to Standard Operating Procedures
            that will give DISTRIBUTOR responsibility for managing logistical
            and operational details with BI with respect to PRODUCT to be
            supplied to DISTRIBUTOR that is manufactured under the BI AGREEMENT.

      (c)   L&I agrees to consult with DISTRIBUTOR as material issues arise in
            the relationship between L&I and BI; provided, however, that L&I
            shall have the right within its sole discretion to decide and make
            all decisions with respect to all aspects thereof provided, however,
            that L&I shall not make any change to the SPECIFICATIONS which could
            have an effect on the quality of the PRODUCT without the prior
            written consent of DISTRIBUTOR, such consent not to be unreasonably
            withheld or delayed. The PARTIES agree that such consultation shall
            occur in the event that L&I is called upon to give its consent to a
            manufacturing subcontractor pursuant to Section 2.4 of the BI
            AGREEMENT, but the final decision with respect thereto is within the
            sole discretion of L&I.

      (d)   Following execution of this AGREEMENT, the PARTIES will endeavor to
            negotiate with BI lower minimum purchase requirements and shorter
            lead times than those currently set forth in the BI AGREEMENT for
            the submission of forecasts and purchase orders. Initiation and
            timing of the approach to BI to commence such negotiations, and
            management of the negotiations, shall be at the sole discretion and
            under the control of L&I.

8.2   FORECASTS; ORDERS; WARRANTIES.

      For the period during which PRODUCT supplied by L&I to DISTRIBUTOR is
      being manufactured under the BI AGREEMENT:

                        (i) DISTRIBUTOR agrees to place orders and to make
                  forecasts for PRODUCT in accordance with the requirements of
                  the BI AGREEMENT and that any claims with respect to defective
                  or non-conforming PRODUCT shall be made in accordance with and
                  are governed and limited by the BI AGREEMENT. In particular
                  and without limitation, rolling forecasts and firm orders are
                  to be placed in accordance with Section 2.5 of the BI
                  AGREEMENT. In making orders, DISTRIBUTOR shall indicate the
                  quantity of PRODUCT being ordered for the PROFIT SHARING
                  TERRITORY and OTHER TERRITORY, respectively. DISTRIBUTOR shall
                  have the rights set forth in Sections 3.2 and 3.3 of the BI
                  AGREEMENT regarding testing of PRODUCT,


                                       28
<PAGE>



                  auditing of BI (subject to the consent of BI), and rejection
                  of defective PRODUCT.

                        (ii) L&I warrants and represents that the PRODUCT to be
                  supplied to DISTRIBUTOR hereunder corresponds to the
                  SPECIFICATIONS and shall be produced according to current Good
                  Manufacturing Practices standards as of the date and time of
                  production and in accordance with all applicable laws, rules
                  and regulations in the country where produced. L&I further
                  warrants and represents that the PRODUCT shall be delivered to
                  DISTRIBUTOR free and clear of liens and claims which affect
                  title. L&I makes no other warranties and representations with
                  respect to the manufacture of PRODUCT. Notwithstanding
                  anything else to the contrary, L&I's liability with respect to
                  any such warranty or representation is limited to the amount
                  and in the manner set forth in Section 3.6 of the BI
                  AGREEMENT. The warranties and representations of L&I set forth
                  in this Section 8.2(ii) shall not apply to the activities of
                  DISTRIBUTOR performed pursuant to Section 6.2; in such case
                  the warranties and representations of L&I shall apply only to
                  FILLED PRODUCT.

                        (iii) L&I agrees to provide DISTRIBUTOR with the
                  documentation provided by BI to L&I under Section 3.8 of the
                  BI AGREEMENT.

                        (iv) In the event that L&I fails to purchase the minimum
                  quantities of PRODUCT specified in Section 2.8 of the BI
                  AGREEMENT and L&I is obligated to pay a surcharge under
                  Section 5.2 of the BI AGREEMENT, then, subject to Section
                  6.13, DISTRIBUTOR shall pay to L&I the amount of such
                  surcharge ("Surcharge"). The Surcharge paid by DISTRIBUTOR,
                  multiplied by the "Fraction" (as hereinafter defined), shall
                  be COST OF GOODS for the PROFIT SHARING TERRITORY for the
                  applicable YEAR and the remainder thereof shall be COST OF
                  GOODS for the OTHER TERRITORY under Section 6.7(b) of this
                  AGREEMENT. The "Fraction" has as a numerator the NET SALES of
                  PRODUCT by DISTRIBUTOR in the PROFIT SHARING TERRITORY in the
                  applicable YEAR and, as the denominator, NET SALES of PRODUCT
                  in the TERRITORY for the applicable YEAR. (v) In the event
                  that a payment is due to BI under Section 8.5 of the BI
                  AGREEMENT, DISTRIBUTOR shall pay ******23 of such amount.

                        (vi) In the event that L&I receives a credit or no
                  charge replacement of PRODUCT from BI for PRODUCT for which
                  L&I has

- ------------------------
23 "Confidential treatment requested: material has been omitted and filed
separately with the Commission".


                                       29
<PAGE>



                  received payment from DISTRIBUTOR, L&I will credit DISTRIBUTOR
                  for such amount. Where DISTRIBUTOR notifies L&I of a claim for
                  such credit or no charge replacement under the BI AGREEMENT,
                  L&I will use all reasonable efforts to obtain such credit or
                  no charge replacement to the extent permitted under the BI
                  AGREEMENT.

9.    LOAN.

9.1   (a) DISTRIBUTOR agrees to make a loan to L&I of Thirty million dollars
      ($30,000,000) in the following amounts and at the following times in order
      to assist L&I in meeting L&I's financial obligations under this AGREEMENT:

            (i)   ******24

            (ii)  ******25

            (iii) ******26

            (iv)  ******27

            (v)   ******28 provided, however that DISTRIBUTOR'S obligation to
                  make the payment contemplated by this subsection shall not
                  become due until DISTRIBUTOR'S option to terminate this
                  AGREEMENT pursuant to Section 11.1(c) has expired without
                  DISTRIBUTOR having terminated this AGREEMENT.

            (vi)  ******29 provided, however, that DISTRIBUTOR'S obligation to
                  make the payment contemplated by this subsection shall not
                  become due until DISTRIBUTOR'S option to terminate this
                  AGREEMENT pursuant to section 11.1(c) has expired without
                  DISTRIBUTOR having terminated this AGREEMENT.

- ------------------------
      24 "Confidential treatment requested: material has been omitted and filed
separately with the Commission".
      25 "Confidential treatment requested: material has been omitted and filed
separately with the Commission".
      26 "Confidential treatment requested: material has been omitted and filed
separately with the Commission".
      27 "Confidential treatment requested: material has been omitted and filed
separately with the Commission".
      28 "Confidential treatment requested: material has been omitted and filed
separately with the Commission".
      29 "Confidential treatment requested: material has been omitted and filed
separately with the Commission".

                                       30
<PAGE>



      (b)   The loans that are made under Section 9.1(a) shall bear interest at
            PRIME plus one percent (1%) PER ANNUM.

      (c)   To the extent that the outstanding principal of any loan made
            pursuant to Section 9(a) has not been reduced under Sections 12.2
            and 12.3, such outstanding principal and any accumulated interest
            are repayable to DISTRIBUTOR out of L&I's portion of positive
            EARNINGS payable to L&I pursuant to Section 3.6.

      (d)   L&I shall have no liability for repayment of the loans except in
            accordance with the provisions of Sections 3.6, 12.2 and 12.3.

10.   DEVELOPMENT COMMITTEE

10.1  (a)   The development of PRODUCT in the TERRITORY for INDICATIONS shall be
            managed and directed by a committee composed of four members, with
            DISTRIBUTOR appointing two (2) members and L&I two (2) members (the
            "DEVELOPMENT COMMITTEE"), with a member appointed by L&I being
            Chairman of the DEVELOPMENT COMMITTEE.

      (b)   The DEVELOPMENT COMMITTEE shall meet at least once each CALENDAR
            QUARTER at the call of the Chairman in person or by telephone. A
            quorum for the conduct of business at any meeting of the DEVELOPMENT
            COMMITTEE shall consist of at least one representative of
            DISTRIBUTOR and at least one L&I representative. Each of L&I and
            DISTRIBUTOR shall have one vote, and all decisions shall be reached
            by a unanimous vote. The PARTIES shall cause the DEVELOPMENT
            COMMITTEE to review and vote on each submitted DEVELOPMENT PLAN,
            PRELIMINARY WORK PLAN and PRELIMINARY WORK PLAN.

      (c)   The DEVELOPMENT COMMITTEE shall review each approved DEVELOPMENT
            PLAN at least once each YEAR or at the request of any member, and
            shall decide whether or not to amend the DEVELOPMENT PLAN.

      (d)   If there is a tie vote in the DEVELOPMENT COMMITTEE as to a
            DEVELOPMENT PLAN or any amendment thereto, or PRELIMINARY
            DEVELOPMENT PLAN or PRELIMINARY WORK PLAN, L&I and DISTRIBUTOR agree
            to exert all reasonable efforts to arrive at a mutually acceptable
            resolution, including a meeting between the Head of the Therapeutics
            SBU of DISTRIBUTOR and a manager of the General Partner of L&I. If
            such a dispute relates to OTHER INDICATIONS and resolution is not
            reached within thirty (30) days, then dispute resolution shall be as
            set forth in Section 12 for the particular INDICATION under
            discussion.



                                       31
<PAGE>


11.   DEVELOPMENT FOR CLL INDICATIONS

11.1  (a)   With respect to PRODUCT for the CLL INDICATION, L&I shall bear the
            cost and expense of the CLINICAL TRIAL and shall exert commercially
            reasonable efforts to complete the CLINICAL TRIAL. If the CLINICAL
            TRIAL is successful, L&I shall bear the cost and expense for filing
            and obtaining approval of a BLA in the United States based on such
            CLINICAL TRIAL, and shall exert commercially reasonable efforts to
            file and obtain such BLA.

      (b)   If the CLINICAL TRIAL is not successful, or if a BLA is not approved
            in the United States based solely on the CLINICAL TRIAL, and
            DISTRIBUTOR and/or L&I reasonably believe that additional clinical
            work should be done to obtain BLA approval for the CLL INDICATION,
            then at the option of L&I, L&I shall either (i) pay the expense of
            such additional clinical work to obtain BLA approval for the CLL
            INDICATION; or (ii) L&I and DISTRIBUTOR shall initiate good-faith
            negotiations to reach agreement with respect to L&I and DISTRIBUTOR
            sharing the expenses of such clinical work and an appropriate
            reduction in the APPROPRIATE PERCENTAGE for PRODUCT for the CLL
            INDICATION.

      (c)   In the event that a BLA is obtained in the United States or a BLA
            equivalent is obtained from the EMEA, in either case for the CLL
            INDICATION, and if DISTRIBUTOR concludes that the labeling is such
            that the PRODUCT that is the subject of such BLA or BLA equivalent
            is not commercially viable, then DISTRIBUTOR shall have the right to
            do one of the following, by written notice to L&I, within thirty
            (30) days after receipt from L&I of notice of such BLA or such BLA
            equivalent approval and a copy of all approval correspondence
            received by L&I from the applicable AGENCY:

                  i) Terminate this AGREEMENT, in which case DISTRIBUTOR shall
            not be required to make the loan payments under (x) Section 9(a)(v)
            , if the termination is made within thirty (30) days after receipt
            from L&I of the notice and correspondence described above relating
            to BLA approval; or (y) under Section 9(a)(vi) if the termination is
            made within thirty (30) days after receipt from L&I of the notice
            and correspondence described above relating to BLA equivalent
            approval; or

                  (ii) Request L&I to perform additional clinical work to extend
            the label for the CLL INDICATION, in which case DISTRIBUTOR shall
            reimburse L&I for ******30 of such DEVELOPMENT EXPENSES on a
            CALENDAR QUARTER basis as such expenses are incurred, within thirty
            (30) days after receipt of an invoice therefor; provided, however,
            that such

- ------------------------
      30 "Confidential treatment requested: material has been omitted and filed
separately with the Commission".


                                       32
<PAGE>


            DEVELOPMENT EXPENSES shall not exceed a total of four million
            dollars ($4,000,000) without the consent of both PARTIES.

      (d)   With respect to PRODUCT for the CLL INDICATION, L&I shall exert
            commercially reasonable efforts to obtain EMEA approval therefor in
            Europe and L&I shall bear the cost and expense thereof. Pricing
            approvals, if any, shall be obtained at the cost and expense of
            DISTRIBUTOR.

      (e)   In Europe, L&I shall use commercially reasonable efforts to obtain
            EMEA approval for PRODUCT for the extension of the CLL INDICATION in
            accordance with Appendix D. L&I shall pay all of the DEVELOPMENT
            EXPENSES therefor, provided, however, that DISTRIBUTOR shall pay to
            L&I ******31 of such DEVELOPMENT EXPENSES on a quarterly basis as
            such expenses are incurred, within thirty (30) days of invoice
            therefor.

      (f)   With respect to PRODUCT for the CLL INDICATION in countries of the
            TERRITORY other than the United States and those countries covered
            by the EMEA, L&I shall exert commercially reasonable efforts to
            develop and obtain regulatory approval therefor in any country where
            DISTRIBUTOR desires to market the PRODUCT. L&I shall pay the
            DEVELOPMENT EXPENSES therefor and DISTRIBUTOR shall reimburse L&I
            for ******32 of such DEVELOPMENT EXPENSES on a quarterly basis as
            such expenses are incurred, within thirty (30) days of receipt of an
            invoice therefor. In the event that L&I materially fails to exert
            commercially reasonable efforts to develop and obtain regulatory
            approval of the PRODUCT for the CLL INDICATION in one or more
            countries of the TERRITORY as provided in this Section 11.1(f),
            DISTRIBUTOR may, after forty-five (45) days prior written notice to
            L&I, undertake such development and approval and complete it at
            DISTRIBUTOR'S own expense if during such notice period L&I has not
            begun to carry out such work in a manner reasonably likely to
            accomplish the desired objective. DISTRIBUTOR shall be entitled to
            commercially reasonable assistance from L&I to accommodate
            DISTRIBUTOR'S efforts, including providing data and study reports in
            the possession of L&I, if necessary to permit the exercise by
            DISTRIBUTOR of its rights under this Section 11.1(f). ******33 of
            all costs reasonably incurred by DISTRIBUTOR in carrying out
            activities under this Section shall be reimbursed to DISTRIBUTOR by
            L&I on a CALENDAR QUARTER basis as such expenses are incurred
            following receipt by L&I of DISTRIBUTOR'S invoice therefor, or may
            be deducted by DISTRIBUTOR

- ------------------------
      31 "Confidential treatment requested: material has been omitted and filed
separately with the Commission".
      32 "Confidential treatment requested: material has been omitted and filed
separately with the Commission".
      33 "Confidential treatment requested: material has been omitted and filed
separately with the Commission".

                                       33
<PAGE>


            from any payments due from DISTRIBUTOR to L&I under this AGREEMENT,
            at the option of DISTRIBUTOR. The remedy provided in this Section
            11.1(f) shall be the sole remedy for L&I's failure to perform L&I's
            obligations under this Section 11.1(f).

12.   DEVELOPMENT FOR OTHER INDICATIONS

12.1  (a)   Any PARTY shall have the right to propose to the DEVELOPMENT
            COMMITTEE that the PRODUCT be studied for an OTHER INDICATION.
            Proposals to the DEVELOPMENT COMMITTEE concerning the study of an
            OTHER CANCER INDICATION shall be initiated by submitting a
            DEVELOPMENT PLAN to the DEVELOPMENT COMMITTEE. Proposals to the
            DEVELOPMENT COMMITTEE concerning the study of an OTHER NON-CANCER
            INDICATION shall be initiated by submitting either a PRELIMINARY
            WORK PLAN or a DEVELOPMENT PLAN to the DEVELOPMENT COMMITTEE.

      (b)   With regard to an OTHER CANCER INDICATION, the PARTIES must both
            agree to the DEVELOPMENT PLAN or the OTHER CANCER INDICATION will
            not be developed. If a DEVELOPMENT PLAN for an OTHER CANCER
            INDICATION is approved by the DEVELOPMENT COMMITTEE, then L&I shall
            perform the work under the DEVELOPMENT PLAN and pay one hundred
            percent (100%) of the DEVELOPMENT EXPENSES. DISTRIBUTOR shall pay to
            L&I ******34 of such DEVELOPMENT EXPENSES on a CALENDAR QUARTER
            basis as such expenses are incurred, within thirty (30) days of
            receipt of L&I's invoice therefor.

      (c)   With regard to an OTHER NON-CANCER INDICATION:

            (i)   If either PARTY submits a PRELIMINARY WORK PLAN for an OTHER
                  NON-CANCER INDICATION to the DEVELOPMENT COMMITTEE, the
                  DEVELOPMENT COMMITTEE shall decide whether to approve the
                  PRELIMINARY WORK PLAN. For the first five (5) YEARS, if the
                  DEVELOPMENT COMMITTEE cannot agree whether to approve such a
                  PRELIMINARY WORK PLAN, then the decision of L&I shall control.
                  After the first five (5) YEARS, work under such a PRELIMINARY
                  WORK PLAN shall not proceed unless the PARTIES agree.
                  Aggregate funding under such PRELIMINARY WORK PLANS for the
                  first five (5) YEARS shall not exceed one million dollars
                  ($1,000,000) per YEAR without the consent of both PARTIES. L&I
                  shall perform the work under the PRELIMINARY WORK PLAN and pay
                  one hundred percent (100%) of the DEVELOPMENT EXPENSES.

- ------------------------
      34 "Confidential treatment requested: material has been omitted and filed
separately with the Commission".


                                       34
<PAGE>



                  DISTRIBUTOR shall pay to L&I ******35 of such DEVELOPMENT
                  EXPENSES on a CALENDAR QUARTER basis as such expenses are
                  incurred, within thirty (30) days of receipt of L&I's invoice
                  therefor.

            (ii)  With respect to OTHER NON-CANCER INDICATIONS, no DEVELOPMENT
                  PLAN shall be submitted to the DEVELOPMENT COMMITTEE in
                  advance of each PARTY being supplied with a PRELIMINARY
                  DEVELOPMENT PLAN. If either PARTY submits such a DEVELOPMENT
                  PLAN to the DEVELOPMENT COMMITTEE, the DEVELOPMENT COMMITTEE
                  shall decide whether to approve the DEVELOPMENT PLAN. During
                  the first five (5) YEARS, if the PARTIES cannot agree the
                  decision of L&I shall control. After the first five (5) years,
                  both PARTIES must agree to such a DEVELOPMENT PLAN. If a
                  DEVELOPMENT PLAN is approved by the DEVELOPMENT COMMITTEE,
                  either because the DEVELOPMENT COMMITTEE reached agreement, or
                  during the first five (5) YEARS, because of the decision of
                  L&I, L&I shall perform the work under the DEVELOPMENT PLAN and
                  pay one hundred percent (100%) of the DEVELOPMENT EXPENSES.
                  DISTRIBUTOR shall pay to L&I ******36 of such DEVELOPMENT
                  EXPENSES on a CALENDAR QUARTER basis as such expenses are
                  incurred, within thirty (30) days of receipt of L&I's invoice
                  therefor. Within thirty (30) days of approval of the
                  DEVELOPMENT PLAN by the DEVELOPMENT COMMITTEE or, at any time
                  thereafter, by ninety (90) days' prior written notice, either
                  PARTY shall have the right to serve notice on the other PARTY
                  that it will not fund its portion of the DEVELOPMENT EXPENSES
                  as described in the previous two sentences (the "OPT OUT
                  OPTION"). If the DISTRIBUTOR chooses to fund its portion of
                  DEVELOPMENT EXPENSES under an approved DEVELOPMENT PLAN, then
                  it shall have equal participation with L&I in the design of
                  clinical protocols and conduct of activities under the
                  DEVELOPMENT PLAN.

            (iii) The decisions of the PARTIES to pay their portion of
                  DEVELOPMENT EXPENSES or to exercise their OPT OUT OPTIONS
                  shall have the following consequences:

      (A)   In the event that DISTRIBUTOR elects to fund DEVELOPMENT EXPENSES
            and L&I exercises its OPT OUT OPTION for PRODUCT for an OTHER
            NON-CANCER INDICATION, then L&I shall perform the work under the
            DEVELOPMENT PLAN for such INDICATION and DISTRIBUTOR shall pay for
            one hundred percent (100%) of the DEVELOPMENT EXPENSES, which

- ------------------------
      35 "Confidential treatment requested: material has been omitted and filed
separately with the Commission".
      36 "Confidential treatment requested: material has been omitted and filed
separately with the Commission".

                                       35
<PAGE>


            shall be due and payable on a CALENDAR QUARTER basis as such
            expenses are incurred, within thirty (30) days after receipt of
            L&I's invoice therefor.

      (B)   In the event that DISTRIBUTOR exercises its OPT OUT OPTION with
            respect to such a DEVELOPMENT PLAN, then any and all rights of
            DISTRIBUTOR under this AGREEMENT for PRODUCT for the OTHER
            NON-CANCER INDICATION of the DEVELOPMENT PLAN shall be terminated
            upon receipt of such notice.

      (C)   Subject to DISTRIBUTOR making the payments due from DISTRIBUTOR
            under Section 12.1(b) and (c)(ii) and (c)(iii)(A), as the case may
            be, L&I shall use commercially reasonable efforts to develop and
            obtain regulatory approval for PRODUCT for each OTHER NON-CANCER
            INDICATION in each country of the TERRITORY for which there is a
            DEVELOPMENT PLAN for PRODUCT for such OTHER NON-CANCER INDICATION,
            all in accordance with the applicable DEVELOPMENT PLAN.

      (D)   If after DISTRIBUTOR exercises it OPT OUT OPTION L&I decides to
            offer rights to a THIRD PARTY for such PRODUCT for such OTHER
            NON-CANCER INDICATION after completion of clinical studies, L&I
            shall provide written notice thereof to DISTRIBUTOR and if
            DISTRIBUTOR is interested in obtaining such rights as evidenced by
            written notice from DISTRIBUTOR within thirty (30) days thereafter,
            then L&I will negotiate with DISTRIBUTOR for a period of one month
            in an attempt to enter into an agreement with DISTRIBUTOR with
            respect to such rights, but neither DISTRIBUTOR nor L&I shall be
            obligated to enter into such an agreement. If the PARTIES have not
            entered into an agreement within thirty (30) days after initiating
            such negotiation, L&I shall have the right to offer or grant rights
            to any person or entity on any terms or conditions within the sole
            discretion of L&I.

      (E)   If after DISTRIBUTOR exercises its OPT OUT OPTION with respect to
            PRODUCT for an OTHER NON-CANCER INDICATION and if prior to
            initiating clinical studies there is a substantial change to the
            DEVELOPMENT PLAN in effect at the time of the election, L&I shall
            provide written notice thereof to DISTRIBUTOR and if DISTRIBUTOR is
            interested in developing PRODUCT for such OTHER NON-CANCER
            INDICATION as evidenced by written notice from DISTRIBUTOR within
            thirty (30) days thereafter, then L&I will negotiate with
            DISTRIBUTOR for a period of one month in an attempt to enter into an
            agreement with DISTRIBUTOR with respect to such rights, but neither
            DISTRIBUTOR nor L&I shall be obligated to enter into such an
            agreement. If the parties have not entered into an agreement within
            thirty (30) days after initiating such negotiation, L&I shall have
            the right to offer or grant rights to any person or entity on any
            terms or conditions within the sole discretion of L&I.


                                       36
<PAGE>


      (F)   At the time of approval of a DEVELOPMENT PLAN for PRODUCT for an
            OTHER NON-CANCER INDICATION which is to be funded by both L&I and
            DISTRIBUTOR, L&I and DISTRIBUTOR shall agree to a plan by which L&I
            or DISTRIBUTOR is to receive a royalty for PRODUCT for such OTHER
            NON-CANCER INDICATION in the event that L&I or DISTRIBUTOR
            exercises, as the case may be, its right to terminate funding of a
            DEVELOPMENT PLAN for PRODUCT for such OTHER INDICATION after an
            agreed to amount of money has been spent under the DEVELOPMENT PLAN
            for such OTHER NON-CANCER INDICATION. It is understood that if L&I
            terminates funding, such royalty shall be in addition to any other
            payments to which L&I is entitled under this AGREEMENT and the
            determined royalty shall be the same for L&I and DISTRIBUTOR.

      (G)   If DISTRIBUTOR exercises its OPT OUT OPTION with respect to PRODUCT
            for an OTHER NON-CANCER INDICATION, L&I's development thereof, if
            any, shall not be subject to the authority of the DEVELOPMENT
            COMMITTEE.

      (H)   Within forty-five (45) days after L&I obtains approval to market
            PRODUCT for an OTHER NON-CANCER INDICATION in the United States or a
            MAJOR COUNTRY of the TERRITORY, whichever is earlier, DISTRIBUTOR
            shall pay to L&I, the PAYMENT AMOUNT for PRODUCT for such OTHER
            NON-CANCER INDICATION, provided that at such time DISTRIBUTOR'S
            right to distribute PRODUCT for such OTHER NON-CANCER INDICATION has
            not been terminated. The amount paid at such time shall be based on
            a good faith estimate at the time of the PAYMENT AMOUNT as made by a
            THIRD PARTY agreed to by L&I and DISTRIBUTOR and the payment shall
            be adjusted upwardly or downwardly at the time that the actual
            PAYMENT AMOUNT can be determined by DISTRIBUTOR by either paying an
            additional amount to L&I or L&I refunding any excess amount paid. It
            is expressly understood that the payment of this Section
            12.1(c)(iii)(H) shall be paid only once for each of the rheumatoid
            arthritis, transplantation and multiple sclerosis INDICATIONS.

      (I)   With respect to a proposed DEVELOPMENT PLAN for an OTHER NON-CANCER
            INDICATION, if the DEVELOPMENT PLAN is directed to developing
            PRODUCT with the same formulation and/or with the same strength as
            PRODUCT for the CLL INDICATION or an OTHER CANCER INDICATION that is
            then being developed or distributed under this AGREEMENT, then L&I
            shall provide objective evidence to DISTRIBUTOR that it is
            commercially unreasonable to develop PRODUCT for such INDICATION
            with a different strength and/or formulation, as the case may be.
            Within thirty (30) days thereafter, DISTRIBUTOR shall notify L&I in
            writing whether or not it agrees with L&I. If DISTRIBUTOR disagrees,
            then DISTRIBUTOR shall provide with such notice the reasons for such
            disagreement. If DISTRIBUTOR and L&I do not resolve such
            disagreement, then either PARTY can submit the disagreement to
            arbitration pursuant to Section 19.6. If DISTRIBUTOR agrees with
            L&I, or L&I's position is determined to be correct in


                                       37
<PAGE>


            an arbitration pursuant to Section 19.6, and DISTRIBUTOR exercises
            its OPT-OUT OPTION, the provisions of Section 13.6(a)(vi) shall not
            be applicable to PRODUCT for such INDICATION, as set forth in such
            DEVELOPMENT PLAN.

      (J)   If DISTRIBUTOR exercises its OPT-OUT OPTION with respect to a
            PRODUCT for an OTHER NON-CANCER INDICATION after initiation of
            development thereof under a DEVELOPMENT PLAN, then the provisions of
            Section 13.6(a)(vi) shall not be applicable to PRODUCT for such
            INDICATION, as set forth in such DEVELOPMENT PLAN.

12.2  LOAN REDUCTIONS

      With respect to any portion of DEVELOPMENT EXPENSES paid by L&I pursuant
      to Section 11 or Section 12 that DISTRIBUTOR is not obligated to reimburse
      pursuant to Sections 11 or 12 ("Non-Reimbursed Portion") to the extent
      that there is any unpaid principal on loans made to L&I pursuant to
      Section 9, DISTRIBUTOR shall forgive the outstanding principal amount of
      such loan and any interest thereon in an amount equal to such
      "Non-Reimbursed Portion" upon receipt of an invoice therefor from L&I.

12.3. FURTHER LOAN REDUCTIONS

      DISTRIBUTOR shall credit to L&I an amount equal to ten percent (10%) of
      DEVELOPMENT EXPENSES paid by L&I under Sections 11 and 12 (whether or not
      reimbursed by DISTRIBUTOR) by reducing the outstanding principal amount of
      any loan made by DISTRIBUTOR to L&I pursuant to Section 9 effective upon
      receipt of an invoice therefor from L&I.

12.4  DISTRIBUTOR AUDIT RIGHTS

      L&I shall keep and shall cause each of its AFFILIATES and its and their
      contractors to keep full and accurate records and books of account
      containing all particulars that may be necessary for the purpose of
      calculating DEVELOPMENT EXPENSES to be charged to DISTRIBUTOR pursuant to
      this AGREEMENT. Such books of account shall be kept at their principal
      places of business and, with all necessary supporting data shall, for the
      three (3) years next following the end of the calendar year to which each
      shall pertain be open for inspection by an independent certified
      accountant selected by DISTRIBUTOR and reasonably acceptable to L&I upon
      reasonable notice during normal business hours at DISTRIBUTOR'S expense
      for the sole purpose of verifying charges in compliance with this
      AGREEMENT, but in no event more than once each calendar year. All
      information and data offered shall be used only for the purpose of
      verifying charges to DISTRIBUTOR. In the event that such inspection shall
      indicate that in any calendar year the charges which were paid by
      DISTRIBUTOR were overstated by at least five percent (5%), then L&I shall
      pay the cost of the inspection. All underpayments and overpayments are
      immediately due and payable.


                                       38
<PAGE>


12.5  L&I shall have the right to have work performed on its behalf under
      Section 12 by a THIRD PARTY provided, however, that L&I shall be
      responsible for the work performed by a THIRD PARTY.

13.   OTHER RESPONSIBILITIES

13.1  COMPLIANCE WITH LAW.

      In distributing marketing and selling of PRODUCT in the TERRITORY,
      DISTRIBUTOR shall comply with all provisions of the laws, rules and
      regulations applicable in the TERRITORY.

13.2  PROHIBITION ON EXPORTS.

      DISTRIBUTOR agrees not to export PRODUCT outside the TERRITORY without the
      express permission of L&I. L&I agrees not to sell or permit the sale in
      the TERRITORY by THIRD PARTIES of PRODUCT for an INDICATION for which
      DISTRIBUTOR has distribution rights in the TERRITORY.

13.3  NEGATION OF PARTNERSHIP; ETC.

      The appointment of DISTRIBUTOR hereunder shall not create a joint venture,
      or any employer-employee relationship or principal-agency relationship
      between L&I and DISTRIBUTOR. Nothing under this AGREEMENT shall be deemed
      to authorize DISTRIBUTOR to act for, represent, or bind L&I or any of its
      AFFILIATES. Nothing under this AGREEMENT shall be deemed to authorize L&I
      to act for, represent, or bind DISTRIBUTOR or any of its AFFILIATES. This
      AGREEMENT does not create a partnership for United States federal income
      tax purposes (as defined in Section 761 of the United States Internal
      Revenue Code), for any United States state or local jurisdiction, or in
      any country other than the United States. Therefore there is no
      requirement to file Form 1065, United States Partnership Return of Income,
      any similar United States state or local income tax return, or any similar
      document with tax authorities in any other country .

13.4  CONFIDENTIALITY.

      (a)   During the term of this AGREEMENT, it is contemplated that a PARTY
            will disclose to the other PARTY proprietary and confidential
            technology, specifications, technical information and the like which
            are owned or controlled by or licensed to a PARTY ("Confidential
            Information"). The receiving PARTY agrees to retain the disclosing
            PARTY's Confidential Information in confidence and not to disclose
            any such Confidential Information to a THIRD PARTY without the prior
            written consent of the disclosing PARTY and to use the disclosing
            PARTY's Confidential Information only for the purposes of this
            AGREEMENT. The obligations of confidentiality will not apply to
            Confidential Information which:


                                       39
<PAGE>

                        (i) was known to the receiving PARTY or generally known
                  to the public prior to its disclosure hereunder;

                        (ii) subsequently becomes known to the public by some
                  means other than a breach of this AGREEMENT;

                        (iii) is subsequently disclosed to the receiving PARTY
                  by a THIRD PARTY having a lawful right to make such
                  disclosure, or is developed by the receiving PARTY
                  independently of the disclosure of the disclosing PARTY;

                        (iv) is required by law or BONA FIDE legal process to be
                  disclosed provided that the receiving PARTY takes all
                  reasonable steps to restrict and maintain confidentiality of
                  such disclosure and provides reasonable prior notice to the
                  disclosing PARTY;

                        (v) is approved for release by the PARTIES; or

                        (vi) is preclinical or clinical data or other
                  information concerning PRODUCT which DISTRIBUTOR is reasonably
                  required to disclose to consultants (such as advertising
                  agencies, reimbursement experts and marketing research
                  companies), customers, healthcare professionals, consumers or
                  regulatory agencies as part of its routine advertising or
                  promotional activities or medical education, professional
                  services, adverse event investigation and reporting, or
                  PRODUCT quality or complaint investigation and reporting
                  functions, or which is disclosed by DISTRIBUTOR to AFFILIATES
                  and SUBDISTRIBUTORS in order to allow them to market and sell
                  PRODUCT in their respective countries of the TERRITORY as
                  permitted by this AGREEMENT (provided that such AFFILIATES and
                  SUBDISTRIBUTORS agree to be bound by the confidentiality
                  obligations set forth in this Section).

      (b)   Upon termination or expiration of this AGREEMENT, each PARTY shall
            return to the other PARTY all tangible forms of Confidential
            Information furnished by the other PARTY, including all copies
            thereof and all memoranda of oral disclosure, except that each PARTY
            may retain one copy in its files to ensure compliance with any legal
            obligations.

      (c)   This Section shall survive until the tenth anniversary of the
            termination or expiration of this AGREEMENT.

      (d)   With respect to Confidential Information that is know-how under the
            BTG AGREEMENT, DISTRIBUTOR agrees to maintain the confidentiality
            thereof in accordance with the DISTRIBUTOR BTG LETTER.


                                       40
<PAGE>


      (e)   Publicity Review. Neither PARTY shall originate any written
            publicity, news release, or other announcement or statement relating
            to this AGREEMENT, performance hereunder, or the existence of an
            arrangement between the PARTIES (collectively a "Written
            Disclosure"), without the prompt prior review and written approval
            of the other PARTY, which approval shall not be unreasonably
            withheld or delayed. Notwithstanding the foregoing, either PARTY may
            make any public Written Disclosure it believes in good faith based
            upon the advice of counsel is required by applicable law, rule or
            regulation or any listing or trading agreement concerning its or its
            AFFILIATES publicly traded securities; provided, however, that such
            Written Disclosure shall minimize to the extent possible the
            financial information disclosed, and that prior to making such
            Written Disclosure, the disclosing PARTY shall provide to the other
            party a copy of the materials proposed to be disclosed and provide
            the receiving PARTY with an opportunity to promptly review the
            Written Disclosure.

13.5  APPOINTMENT OF AUTHORIZED AGENT.

                  (a) As promptly as possible following the first approval of a
                  BLA for PRODUCT by FDA, L&I shall, to the fullest extent
                  possible, authorize DISTRIBUTOR in writing to represent L&I
                  for purposes of dealing with APLS in regard to all of
                  DISTRIBUTOR'S activities with respect to the distribution of
                  the PRODUCT in the United States (which appointment
                  DISTRIBUTOR shall acknowledge in writing). DISTRIBUTOR'S
                  activities to market and promote the PRODUCT will continue to
                  be conducted as an independent contractor and not as a
                  promotional agent of L&I. To the extent permitted by FDA,
                  DISTRIBUTOR shall have authority to deal with APLS concerning
                  all matters regulated by APLS in connection with DISTRIBUTOR'S
                  activities as distributor of the PRODUCT, including without
                  limitation submission of advertising and promotional materials
                  and responding (orally and in written form) to FDA questions,
                  observations and complaints concerning DISTRIBUTOR'S
                  advertising and promotional materials for PRODUCT. In the
                  event that FDA contacts L&I concerning matters that have been
                  delegated to DISTRIBUTOR pursuant to this Section, L&I shall
                  attempt to refer FDA to DISTRIBUTOR (and if such attempt is
                  unsuccessful, shall immediately notify and, to the extent
                  possible in the circumstances, permit DISTRIBUTOR to intervene
                  with FDA and handle the matter).

                  (b) While acting under Section (a) above, DISTRIBUTOR shall
                  copy L&I on all correspondence to FDA contemporaneously with
                  the submission of such correspondence to FDA (including full
                  copies of all advertising and promotional materials), shall
                  promptly copy L&I on all correspondence received from FDA;
                  shall contact L&I the day of receipt of any communication from
                  FDA that relates to or threatens imposition of any penalty;
                  and shall promptly copy L&I on all contact reports prepared by
                  DISTRIBUTOR concerning any phone calls or meetings with FDA.



                                       41
<PAGE>


                  (c) If at any point DISTRIBUTOR ceases to be the distributor
                  of PRODUCT in the United States, then DISTRIBUTOR shall
                  promptly resign this authority to represent L&I upon written
                  notice from L&I, and L&I shall promptly so notify FDA in
                  writing.

                  (d) If the PARTIES are not successful in having DISTRIBUTOR
                  authorized to represent L&I in these matters before ALPS as
                  set forth in Section 13.5 (a), then this Section 13.5 (d)
                  shall be applicable. L&I shall promptly inform DISTRIBUTOR of
                  communications with FDA concerning DISTRIBUTOR'S advertising
                  and promotional materials and promptly provide DISTRIBUTOR
                  with copies of FDA correspondence. Prior to communicating with
                  FDA about DISTRIBUTOR'S advertising and promotional materials,
                  L&I shall consult with DISTRIBUTOR, and shall transmit the
                  DISTRIBUTOR position on the applicable matter to FDA. To the
                  extent permitted by FDA, L&I shall include DISTRIBUTOR in all
                  meetings and conference calls with FDA relating to
                  DISTRIBUTOR'S advertising and promotional materials, and
                  during such meetings and conference calls shall not make
                  proposals or accede to FDA proposals which have not been
                  previously cleared with DISTRIBUTOR. L&I shall promptly
                  provide to DISTRIBUTOR copies of all L&I contact reports and
                  meeting minutes relating to interaction with FDA relating to
                  DISTRIBUTOR advertising and promotional materials. Written
                  submissions to FDA concerning DISTRIBUTOR'S advertising and
                  promotional materials shall be prepared by DISTRIBUTOR and
                  submitted by L&I. L&I shall keep DISTRIBUTOR promptly informed
                  of the status of matters at FDA involving DISTRIBUTOR'S
                  advertising and promotional materials.

                  (e) The rights and obligations of DISTRIBUTOR under this
                  Section 13.5 shall be exercised by DISTRIBUTOR'S United States
                  AFFILIATE.

13.6  EXCLUSIVITY PROTECTION FOR DISTRIBUTOR.

      (a)   L&I will not:

            (i)   except as permitted by this AGREEMENT, sell PRODUCT in a
                  country for an INDICATION for which DISTRIBUTOR is then
                  distributing the PRODUCT, or for which DISTRIBUTOR is entitled
                  to distribute the PRODUCT, under this AGREEMENT;

            (ii)  encourage in any way the off label use of the PRODUCT in a
                  country for any INDICATION for which DISTRIBUTOR is then
                  distributing the PRODUCT, or for which DISTRIBUTOR is entitled
                  to distribute PRODUCT, under this AGREEMENT;


                                       42
<PAGE>


            (iii) other than for the benefit of and at the express request of
                  DISTRIBUTOR, sponsor or otherwise support medical education or
                  similar programs designed to foster use of the PRODUCT in a
                  country for any INDICATION for which DISTRIBUTOR is then
                  distributing the PRODUCT, or for which DISTRIBUTOR is entitled
                  to distribute the PRODUCT, under this AGREEMENT;

            (iv)  other than for the benefit of and at the express request of
                  DISTRIBUTOR, seek approval in a country of the OTHER
                  NON-CANCER INDICATION by way of a supplement or amendment of
                  any BLA or foreign equivalent under which DISTRIBUTOR is
                  distributing the PRODUCT, or for which DISTRIBUTOR is entitled
                  to distribute the PRODUCT, under this AGREEMENT;

            (v)   market the PRODUCT under the TRADEMARK;

            (vi)  except for the benefit of and at the express request of
                  DISTRIBUTOR, sell PRODUCT for an OTHER NON-CANCER INDICATION
                  by way of a PRODUCT with the same package size as the PRODUCT
                  being distributed by DISTRIBUTOR and subject to Section
                  12.1(c)(iii)(I) and (J) with the same formulation or strength
                  as the PRODUCT being distributed by DISTRIBUTOR.

      (b)   In the event that DISTRIBUTOR can demonstrate by objective proof
            that PRODUCT distributed by L&I or any licensee or distributor of
            L&I other than DISTRIBUTOR is being used for an INDICATION for which
            DISTRIBUTOR retains distribution rights granted by L&I, and that for
            any CALENDAR QUARTER in a country of the TERRITORY such use exceeds
            five percent (5%) of DISTRIBUTOR'S sales of PRODUCT for such
            CALENDAR QUARTER, then within thirty (30) days of such demonstration
            by DISTRIBUTOR and within thirty (30) days of each CALENDAR QUARTER
            thereafter that such use exceeds five percent (5%), L&I shall pay to
            DISTRIBUTOR, a sum equal to ******37 of the gross sales of L&I, or
            the licensee or distributor of L&I, as applicable, of the amount of
            such PRODUCT that is used for such INDICATION in such country for
            such CALENDAR QUARTER. Any dispute arising under this Section shall
            be resolved by binding arbitration pursuant to Section 19.6.
            DISTRIBUTOR'S remedy hereunder is without prejudice to L&I's
            obligations pursuant to Section 13.6(a).

      (c)   L&I will cause its distributors and licensees of any OTHER
            NON-CANCER INDICATION to agree in writing to the terms of Section
            13.6(a) and (b), and will provide a copy of such writing to
            DISTRIBUTOR promptly following its

- ------------------------
      37 "Confidential treatment requested: material has been omitted and filed
separately with the Commission".

                                       43
<PAGE>


            execution. DISTRIBUTOR will be named a third party beneficiary of
            such writing, with the right to seek legal remedies to enforce the
            terms of such writing.

13.7  EXCLUSIVITY PROTECTION FOR L&I.

      (a)   DISTRIBUTOR will not market or sell PRODUCT other than pursuant to
            the rights granted to and retained by DISTRIBUTOR under this
            AGREEMENT.

      (b)   DISTRIBUTOR will not encourage in any way the off label use of the
            PRODUCT sold by DISTRIBUTOR for any INDICATION in any country for
            which DISTRIBUTOR does not have or no longer has distribution rights
            under this AGREEMENT.

      (c)   DISTRIBUTOR will not sponsor or otherwise support medical education
            or similar programs designed to foster use of the PRODUCT in any
            country for any INDICATION for which DISTRIBUTOR does not have or no
            longer has distribution rights under this AGREEMENT.

      (d)   In the event that L&I can demonstrate by objective proof that
            PRODUCT distributed by DISTRIBUTOR is being used for an INDICATION
            in a country for which DISTRIBUTOR no longer has distribution rights
            under this AGREEMENT and that such use of such PRODUCT for such
            INDICATION in such country for any CALENDAR QUARTER exceeds five
            percent (5%) of L&I's (or its distributor's or licensee's) sales of
            PRODUCT for such CALENDAR QUARTER in such country, then within
            thirty (30) days of such demonstration by L&I and within thirty (30)
            days of each CALENDAR QUARTER thereafter that such situation exists,
            DISTRIBUTOR shall pay to L&I, a sum equal to ******38 of the gross
            sales of DISTRIBUTOR of the amount of PRODUCT that is used for such
            INDICATION in such country in such CALENDAR QUARTER. Any dispute
            arising under this Section shall be resolved by binding arbitration
            pursuant to Section 19.6. L&I's remedy hereunder is without
            prejudice to DISTRIBUTOR'S obligations pursuant to Section 13.7(a).

13.8  OWNERSHIP OF REGULATORY LICENSES.

      L&I shall own all regulatory licenses for PRODUCT in the TERRITORY.

13.9  AFFILIATES AND SUBDISTRIBUTORS.

      DISTRIBUTOR and L&I may each perform its obligations and exercise its
      rights under this AGREEMENT personally or thorough one or more AFFILIATES,
      although DISTRIBUTOR or L&I as the case may be shall nonetheless be solely
      responsible for the

- ------------------------
      38 "Confidential treatment requested: material has been omitted and filed
separately with the Commission".


                                       44
<PAGE>


      performance of its AFFILIATES with respect to such obligations performed
      by an AFFILIATE. DISTRIBUTOR shall not permit any of its AFFILIATES to
      commit any act (including any act of omission) which DISTRIBUTOR is
      prohibited hereunder from committing directly. Subject to Section 2.3,
      DISTRIBUTOR may perform its obligations and exercise its rights under this
      AGREEMENT personally or through one or more SUBDISTRIBUTORS, although
      DISTRIBUTOR shall nonetheless be solely responsible for the performance of
      its SUBDISTRIBUTORS. DISTRIBUTOR shall not permit any SUBDISTRIBUTOR to
      commit any act (including any act of omission) which DISTRIBUTOR is
      prohibited hereunder from committing directly. DISTRIBUTOR warrants and
      guarantees that all of its AFFILIATES, and its SUBDISTRIBUTORS will
      perform in accordance with this AGREEMENT as if they were signatories to
      this AGREEMENT. DISTRIBUTOR shall be liable to L&I for any breach of this
      AGREEMENT by any of its AFFILIATES or SUBDISTRIBUTORS. L&I shall not
      permit any of its AFFILIATES to commit any act that L&I is prohibited from
      performing under this AGREEMENT.

13.10 REPORTS.

      (a)   In addition to the reports, record-keeping and accounting required
            by other portions of this AGREEMENT, DISTRIBUTOR covenants and
            agrees that DISTRIBUTOR will provide L&I with the reports,
            information and forecasts required by clauses 6.6, 8.1,16.5.1, and
            16.5.3 of the BTG AGREEMENT to the extent only that such reports,
            information and forecasts relate to PRODUCT for INDICATIONS for
            which DISTRIBUTOR has distribution rights in the TERRITORY. L&I
            shall not, without the prior written consent of DISTRIBUTOR (such
            consent not to be unreasonably withheld or delayed) agree with BTG
            to any amendment to the BTG AGREEMENT which would increase the
            obligations to be assumed by DISTRIBUTOR under this Section 13.10
            beyond those existing on the EFFECTIVE DATE.

      (b)   As soon as practicable following signature of this AGREEMENT, L&I
            shall procure for DISTRIBUTOR the opportunity (together with L&I) to
            explain to BTG DISTRIBUTOR's sales accounting system. L&I and
            DISTRIBUTOR agree to use reasonable commercial efforts to achieve
            agreement with BTG that BTG will accept DISTRIBUTOR's reporting
            of sales information pursuant to Section 6.10 of this AGREEMENT as
            satisfactory performance by DISTRIBUTOR of the obligations of L&I
            pursuant to Section 8.1 of the BTG Agreement.

13.11 PATENT MARKINGS.

      DISTRIBUTOR agrees to include appropriate patent markings specified by L&I
      on FINAL FORM PRODUCT distributed under this AGREEMENT.




                                       45
<PAGE>


13.12 PRECLINICAL AND CLINICAL DATA.

      Promptly following the Effective Date, L&I shall provide to DISTRIBUTOR
      copies of all preclinical and clinical data available to L&I relating to
      PRODUCT. Promptly following BLA filing, L&I shall provide a copy of the
      BLA to DISTRIBUTOR, and following BLA approval, shall promptly provide to
      DISTRIBUTOR any changed sections of the BLA. Thereafter, L&I shall
      promptly provide to DISTRIBUTOR any supplements to the BLA and any
      correspondence with FDA concerning the BLA. The requirements of this
      Section shall also apply to foreign equivalents of the BLA, except that
      duplicate information need not be furnished to DISTRIBUTOR more than once.



13.13 INFRINGEMENT BY THIRD PARTIES.

      In the event that in a country of the TERRITORY a THIRD PARTY is selling
      PRODUCT for an INDICATION for which DISTRIBUTOR retains rights under this
      AGREEMENT, and such sale infringes a patent owned by or licensed to L&I,
      the PARTIES shall consult with each other as to the appropriate action.
      If, after such consultation, DISTRIBUTOR and L&I desire to initiate an
      infringement action, to the extent that L&I has the right to do so, L&I
      shall initiate and prosecute such infringement action taking into account
      DISTRIBUTOR'S comments. The cost and expense of such action and any
      recovery therefrom shall be split between L&I and DISTRIBUTOR on the basis
      of ****** ******39 respectively. If one PARTY wishes to proceed and the
      other PARTY does not, that PARTY may proceed at its own cost, retaining
      all recovery therefrom. To the extent that any patent is licensed under
      the BTG AGREEMENT, this Section 13.13 is subject to clause 19 of the BTG
      AGREEMENT.

13.14 INFRINGEMENT OF THIRD PARTY RIGHTS.

      In the event that any THIRD PARTY brings or threatens to bring an action
      against L&I and/or DISTRIBUTOR (or one of their respective AFFILIATES, or
      in the case of DISTRIBUTOR, a SUBDISTRIBUTOR) alleging that the
      manufacture or sale or use of PRODUCT in the TERRITORY for an INDICATION
      for which DISTRIBUTOR has distribution rights constitutes an infringement
      of such THIRD PARTY'S patent or other intellectual property rights, L&I
      and DISTRIBUTOR shall consult on how best to defend or settle such action.
      L&I shall have the right to handle the defense of such action, but if L&I
      fails to do so, L&I shall permit DISTRIBUTOR to handle such defense. Any
      damages awarded to such THIRD PARTY and all costs of defending such action
      shall be borne (i) by L&I and DISTRIBUTOR in the PROFIT SHARING TERRITORY
      in the ratio of ******40 respectively and (ii) only by DISTRIBUTOR in the
      OTHER


- ------------------------
      39 "Confidential treatment requested: material has been omitted and filed
separately with the Commission".
      40 "Confidential treatment requested: material has been omitted and filed
separately with the Commission".


                                       46
<PAGE>



      TERRITORY, and any royalties paid by DISTRIBUTOR to a THIRD PARTY for the
      OTHER TERRITORY as a result of such action shall be THIRD PARTY ROYALTIES
      under Section 6.7(a)(v). Neither PARTY may enter into a settlement of such
      action without the consent of the other, such consent not to be
      unreasonably withheld or delayed.

13.15 SUPERIORITY OF INDEMNITY PROVISIONS.

      To the extent that any provision of Section 13.14 is inconsistent with the
      indemnity provisions of Section 15, the provisions of Section 13.14 shall
      prevail.

13.16 COORDINATION OF INSPECTION RIGHTS.

      L&I shall use reasonable efforts to coordinate the inspection rights of
      Sections 3.8 and 6.12 of this AGREEMENT with BTG so that if BTG and L&I
      are to each inspect in a YEAR that such inspection shall occur at the same
      time, provided, however, that under each such section, L&I and BTG may
      each individually and separately conduct inspection once a YEAR.

14.   TRADEMARK AND TRADE DRESS

14.1  DISTRIBUTOR acknowledges L&I's ownership in or license to the TRADEMARK
      and agrees that any and all uses thereof by DISTRIBUTOR in distributing
      PRODUCT under this AGREEMENT shall (i)inure to the benefit of L&I and/or
      its licensor; (ii)be in a manner that does not adversely affect the
      TRADEMARK and/or L&I'S and/or its licensor's interest therein. .

14.2  DISTRIBUTOR agrees that DISTRIBUTOR will not use the TRADEMARK except on
      PRODUCT distributed by DISTRIBUTOR under and in accordance with the terms
      and conditions of this AGREEMENT.

14.3  In any country in the TERRITORY in which DISTRIBUTOR retains distribution
      rights to PRODUCT under this AGREEMENT, L&I will not grant rights to a
      THIRD PARTY to the TRADEMARK and will not use the TRADEMARK with respect
      to any product.

14.4  The packaging and trade dress for PRODUCT shall be consistent with the
      trade dress used by DISTRIBUTOR for distributing DISTRIBUTOR'S other
      products and shall be approved by both L&I and DISTRIBUTOR and shall be in
      accordance with all applicable laws, rules and regulations applicable
      thereto.

14.5  In the event that in any country of the TERRITORY, it is required or
      desirable that DISTRIBUTOR, its AFFILIATES or their SUBDISTRIBUTORS be
      recorded as an authorized user of the TRADEMARK, the PARTIES shall
      cooperate with each other to effect same.

                                       47

<PAGE>


15.   INDEMNITY

15.1  INDEMNIFICATION BY DISTRIBUTOR FOR NEGLIGENCE, WILLFUL MISCONDUCT, OR
      BREACH.

      DISTRIBUTOR shall indemnify and hold harmless L&I and its AFFILIATES
      and their licensors (including, but not limited to, BTG and its licensor)
      and their respective employees, agents, officers, managers, partners and
      directors and each of them (an "L&I Indemnified Party") from and against
      any and all THIRD PARTY claims, causes of action, losses, damages and
      costs (including reasonable attorney's fees) of any nature made or
      asserted against an L&I Indemnified Party or lawsuits or other proceedings
      filed or otherwise instituted against a L&I Indemnified Party, in each
      case by a THIRD PARTY (hereinafter individually and collectively (an) "L&I
      Loss(es)") resulting from or arising out of the packaging, use, marketing
      or sale by DISTRIBUTOR its AFFILIATES or their SUBDISTRIBUTORS of PRODUCT
      in the TERRITORY, but solely to the extent that such L&I Loss(es) arise
      out of or result from the (i) negligence or willful misconduct of
      DISTRIBUTOR, or the breach by DISTRIBUTOR of any of its representations or
      warranties or obligations or covenants hereunder and/or (ii) the
      negligence or willful misconduct of or breach of obligations or covenants
      hereunder by AFFILIATES of DISTRIBUTOR or SUBDISTRIBUTORS of DISTRIBUTOR
      or its AFFILIATES in performing under or pursuant to or exercising rights
      under this AGREEMENT.

15.2  INDEMNIFICATION BY L&I FOR NEGLIGENCE, WILLFUL MISCONDUCT, OR BREACH.

      L&I shall indemnify and hold harmless DISTRIBUTOR and its AFFILIATES
      and their SUBDISTRIBUTORS, and their respective employees, agents,
      officers, managers, partners and directors and each of them (a
      "DISTRIBUTOR Indemnified Party") from and against any and all THIRD PARTY
      claims, causes of action, losses, damages and costs (including reasonable
      attorney's fees) of any nature made or asserted against a DISTRIBUTOR
      Indemnified Party, in each case by a THIRD PARTY (hereinafter individually
      and collectively (a) "DISTRIBUTOR Loss(es)" resulting from or arising out
      of the manufacture, use, marketing or sale of PRODUCT in the TERRITORY but
      solely to the extent that such DISTRIBUTOR Loss(es) arise out of or result
      from (i) the negligence or willful misconduct of L&I, or the breach by L&I
      of any of its representations or warranties or obligations or covenants
      hereunder and/or (ii) the negligence or willful misconduct of or breach of
      obligations or covenants hereunder by AFFILIATES of L&I in performing
      under or pursuant to or exercising rights under this AGREEMENT.

15.3  GENERAL INDEMNIFICATION BY DISTRIBUTOR .

      DISTRIBUTOR shall indemnify and hold harmless any and all L&I Indemnified
      Party(ies) from and against any and all L&I Losses resulting from or
      arising out of the use, marketing or sale by DISTRIBUTOR its AFFILIATES or
      their SUBDISTRIBUTORS of PRODUCT in the TERRITORY to the extent that such
      L&I Loss(es) are not within the provisions of Sections 15.1 or 15.2 and to
      the extent that such


                                       48
<PAGE>

      L&I Loss(es) exceed any amount recoverable by L&I Indemnified Party(ies)
      under any applicable L&I Indemnified Party(ies)' insurance; provided,
      however, that DISTRIBUTOR'S liability under this section 15.3 shall not
      exceed ******41 of such L&I Loss(es) in the PROFIT SHARING TERRITORY and
      ******42 of such L&I Losses in the OTHER TERRITORY.

15.4  GENERAL INDEMNIFICATION BY L&I.

      L&I shall indemnify and hold harmless any and all DISTRIBUTOR Indemnified
      Party(ies) from and against any and all DISTRIBUTOR Loss(es) resulting
      from or arising out of the manufacture, use, marketing, or sale of the
      PRODUCT in the TERRITORY to the extent that such DISTRIBUTOR Loss(es) are
      not within the provisions of Section 15.1 or 15.2 and to the extent that
      such DISTRIBUTOR Loss(es) exceed any amount recoverable by DISTRIBUTOR
      Indemnified Party(ies) under any applicable DISTRIBUTOR Indemnified
      Party(ies) insurance; provided, however, that L&I's liability under this
      section 15.4 shall not exceed ******43 of such DISTRIBUTOR Loss(es) in the
      PROFIT SHARING TERRITORY and ******44 of such DISTRIBUTOR Losses in the
      OTHER TERRITORY.

15.5  CONDITIONS TO INDEMNIFICATION.

      A person or entity that intends to claim indemnification under this
      Section 15 (the "Indemnitee") shall promptly notify the other party (the
      "Indemnitor") of any DISTRIBUTOR Loss(es) or L&I Loss(es) as the case may
      be in respect of which the Indemnitee intends to claim such
      indemnification. Indemnitor shall have the right to control the defense of
      any DISTRIBUTOR Loss(es) or L&I Loss(es) as the case may be as to which
      the obligation to indemnify the Indemnitee has been acknowledged by the
      Indemnitor in writing under Section 15.1 or 15.2. Under Sections 15.3 and
      15.4, L&I shall have the right to control the defense in the PROFIT
      SHARING TERRITORY and DISTRIBUTOR shall have such right in the OTHER
      TERRITORY. The indemnity agreement in this Section 15 shall not apply to
      amounts paid in settlement of any loss, claim, damage, liability or action
      if such settlement is effected without the consent of the Indemnitor,
      which consent shall not be withheld or delayed unreasonably. The failure
      to deliver notice to the Indemnitor within a reasonable time after the
      commencement of any such action, only if prejudicial to its ability to
      defend such action, shall relieve such Indemnitor of any liability to the
      Indemnitee under this Section 15, but the omission so to deliver notice to
      the Indemnitor will not relieve it of any liability that it may have to
      any

- ------------------------
      41 "Confidential treatment requested: material has been omitted and filed
separately with the Commission".
      42 "Confidential treatment requested: material has been omitted and filed
separately with the Commission".
      43 "Confidential treatment requested: material has been omitted and filed
separately with the Commission".
      44 "Confidential treatment requested: material has been omitted and filed
separately with the Commission".


                                       49
<PAGE>

      Indemnitee otherwise than under this Section 15. The Indemnitee under this
      Section 15, its employees and agents, shall cooperate fully with the
      Indemnitor and its legal representatives in the investigations and defense
      of any action, claim or liability covered by this indemnification. The
      Indemnitee shall have the right to participate in the defense of such
      action.

15.6  INSURANCE.

      Each PARTY agrees to obtain and maintain in effect a policy or policies of
      insurance covering its indemnity obligations hereunder. Such policies
      shall be issued by one or more reputable insurers reasonably acceptable to
      the other PARTIES, and shall contain terms of coverage reasonably
      acceptable to the other PARTIES. The policy limits of the policy or
      policies obtained shall be at least one million dollars ($1,000,000). Upon
      the request of any other PARTY to this Agreement, each PARTY shall provide
      evidence of insurance coverage in compliance with this Section to the
      other PARTIES. In lieu of the insurance coverage described above, any
      PARTY shall have the right to undertake a program of self-insurance to
      cover its indemnity obligations hereunder, with financial protection at
      least equivalent to the policy limits described above; provided, however,
      that such program of self-insurance shall be reasonably acceptable to the
      other PARTY to this Agreement. The obligations described in this Section
      shall survive the termination or expiration of this AGREEMENT and continue
      to bind the PARTIES for five (5) years after the expiration date of the
      last PRODUCT commercialized by DISTRIBUTOR in any country of the TERRITORY
      pursuant to this AGREEMENT.


16.   ADVERSE REACTIONS; COMPLAINTS

16.1  PREPARATION OF STANDARD OPERATING PROCEDURE.

      (a) Promptly following the execution of this AGREEMENT the PARTIES agree
          to enter into a standard operating procedure to govern collection,
          investigation and reporting to regulatory authorities of PRODUCT-
          related adverse drug experience reports, quality reports, and
          complaint reports, such that all of the PARTIES can comply with their
          legal obligations worldwide. The standard operating procedure will be
          promptly amended as changes in legal obligations require.

16.2  AGENCY ACTION.

      The PARTIES agree to notify each other as soon as possible of any
      information received by a PARTY regarding any threatened or pending action
      by an AGENCY which may affect the safety or efficacy claims of PRODUCT or
      the continued marketing of such PRODUCT.



                                       50
<PAGE>

16.3  RECALLS.

            (a) If any governmental authority having jurisdiction requires or
            reasonably requests any PARTY to recall any PRODUCT due to a defect
            in the manufacture, processing, packaging or labeling of PRODUCT or
            for any other reason whatsoever, such PARTY shall immediately notify
            all of the other PARTIES to this AGREEMENT. EITHER PARTY shall also
            have the right to initiate this recall procedure absent a request
            from a governmental authority after consultation with the other
            PARTY, provided, however, that if L&I decides to initiate a recall
            in the OTHER TERRITORY and DISTRIBUTOR does not agree to such
            recall, then ******45 of the cost and expense thereof shall be paid
            by L&I and ******46 by DISTRIBUTOR.

      (b)   Prior to commencing any recall, DISTRIBUTOR shall review with
            L&I the proposed manner in which the recall is to be carried out.
            DISTRIBUTOR agrees to follow any reasonable advice of L&I as to the
            manner of completing the recall, so long as such advice is agreeable
            to the governmental authority involved, if any.

            DISTRIBUTOR shall carry out the recall in the manner agreed upon
            between L&I and DISTRIBUTOR in as expeditious a manner as possible
            and in such a way as to cause the least disruption to the sales of
            the PRODUCT and to preserve the goodwill and reputation attached to
            the PRODUCT and to the names of DISTRIBUTOR, LEUKOSITE, ILEX and
            L&I.

      (c)   DISTRIBUTOR agrees that appropriate records and procedures will be
            maintained to permit a recall of PRODUCT.

      (d)   Subject to Section 16.3(a) and deduction against EARNINGS as a
            RECALL EXPENSE, DISTRIBUTOR shall pay for and bear the cost and
            expense of any recall under this Section 16.3.

17.   WARRANTIES

17.1  MUTUAL WARRANTY.

      Each party warrants and represents that it has the full right and
      authority to enter into this AGREEMENT and that it is not aware of any
      impediment which would inhibit its ability to perform the terms and
      conditions imposed on it.

- ------------------------
      45 "Confidential treatment requested: material has been omitted and filed
separately with the Commission".
      46 "Confidential treatment requested: material has been omitted and filed
separately with the Commission".



                                       51
<PAGE>

17.2   L&I WARRANTIES.

      (a)  L&I warrants and represents that

           (i) as of the Effective Date the BTG AGREEMENT is in full force and
      effect; prior to the Effective Date L&I has provided DISTRIBUTOR with an
      accurate and complete copy of the BTG AGREEMENT, including all amendments
      thereto and documents incorporated therein by reference.

           (ii) as of the Effective Date, neither L&I nor LEUKOSITE has received
      any notice from BTG that either LEUKOSITE or L&I is presently in breach of
      the BTG AGREEMENT;

           (iii) during the term of the AGREEMENT neither L&I nor LEUKOSITE will
      amend the BTG AGREEMENT in a manner that materially affects DISTRIBUTOR'S
      rights or obligations under this AGREEMENT without the prior written
      consent of DISTRIBUTOR. For the avoidance of doubt, the PARTIES agree that
      any charge resulting in an increase in payments payable by DISTRIBUTOR
      hereunder shall constitute a change which materially affects DISTRIBUTOR'S
      rights;

           (iv) during the term of this AGREEMENT, L&I and LEUKOSITE will make
      all payments required by the BTG AGREEMENT, when due provided that with
      respect to the BTG AGREEMENT in the TERRITORY, DISTRIBUTOR has met
      DISTRIBUTOR'S obligations under Section 6.8;

           (v) as of the Effective Date, without having made an investigation,
      L&I has no knowledge of a granted patent in the TERRITORY which would be
      infringed by the manufacture, use or sale of PRODUCT for the INDICATIONS
      in the TERRITORY, provided, however, that this warranty is not applicable
      to the patents licensed under the BTG AGREEMENT or to those of Appendix E;

           (vi) as of the Effective Date, L&I has not received any notices of
      infringement of THIRD PARTY patent rights by the manufacture, use or sale
      of PRODUCT for the INDICATIONS in the TERRITORY;

           (vii) as of the Effective Date, L&I has not received an opinion of
      counsel that any patent owned by L&I or licensed to L&I under the BTG
      AGREEMENT relating to the manufacture, use or sale of PRODUCT for the
      INDICATIONS in the TERRITORY is invalid or unenforceable;

           (viii) as of the Effective Date of this AGREEMENT, it has made
      available to DISTRIBUTOR all information in L&I's, LEUKOSITE'S and ILEX'S
      possession or control or of which it is aware as of the Effective Date,
      concerning safety, efficacy, side effects, or toxicity of the PRODUCT, or
      sensitivity reactions to the PRODUCT, associated with any clinical use,
      studies, investigations, or tests of the PRODUCT (animal or human),
      whether or not determined to be attributable to the PRODUCT;

                                       52
<PAGE>

           (ix) it has conducted or has caused its contractors or consultants to
      conduct and will in the future conduct, the preclinical and clinical
      studies of the PRODUCT, which, in all material respects, is in accordance
      with applicable United States law, known or published standards of the FDA
      and EMEA, and the scientific standards applicable to the conduct of
      studies in the United States and the European Union, including without
      limitation for the United States Good Laboratories Practices regulations,
      Good Manufacturing Practices Regulations, and Good Clinical Practices
      guidelines;

           (x) it has not employed (and, to the best of its knowledge, has not
      used a contractor or consultant that has employed) and in the future will
      not employ (or, to the best of its knowledge, use any contractor or
      consultant that employs) any individual or entity debarred by the FDA (or
      subject to a similar sanction of EMEA), or, to the best knowledge of L&I,
      any individual who or entity which is the subject of an FDA debarment
      investigation or proceeding (or similar proceeding of EMEA), in the
      conduct of the preclinical or clinical studies of the PRODUCT; and

           (xi) it is the owner or licensee of the TRADEMARK in the countries
      set forth in Appendix F.

17.3  NEGATION OF OTHER REPRESENTATIONS AND WARRANTIES.

      EXCEPT AS OTHERWISE EXPRESSLY SET FORTH IN THIS AGREEMENT NEITHER PARTY
      MAKES ANY REPRESENTATION OR EXTENDS ANY WARRANTIES OF ANY KIND EITHER
      EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, WARRANTIES OF
      MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR VALIDITY OF ANY
      PATENTS ISSUED OR PENDING.

17.4  THIRD PARTY LICENSES.

      In negotiating THIRD PARTY licenses , L&I will use its commercially
      reasonable efforts to obtain a consent (a "Consent') from L&I's licensors
      of Appendix G. Such Consent shall contain the agreement of such licensor
      to (i) give reasonable written notice to DISTRIBUTOR prior to terminating
      the underlying license or contract; (ii) provide DISTRIBUTOR a reasonable
      period to cure any default under such license or contract; and (iii) if
      the licensor seeks to terminate the license to L&I, to grant the license
      to DISTRIBUTOR on the same terms as it was granted to L&I. The failure to
      obtain such a consent shall not be a breach of this AGREEMENT.

17.5  DISTRIBUTOR PAYMENTS UNDER BTG AGREEMENT.

      (a)   In the event that L&I fails to make a payment that is due and
            payable under the BTG AGREEMENT, and DISTRIBUTOR makes such payment
            to BTG on behalf of L&I, then L&I shall pay such amount to
            DISTRIBUTOR,

                                       53

<PAGE>

            unless such amount is an amount that DISTRIBUTOR should have paid
            and did not pay to L&I under Section 6.8 of this AGREEMENT.

      (b)   In the event that there is a breach of the BTG AGREEMENT or a notice
            of termination thereof, DISTRIBUTOR and L&I shall cooperate with
            each other to cure such breach and/or obtain a withdrawal of the
            notice of termination, as the case may be provided, however, that
            DISTRIBUTOR shall have the right within its sole discretion to
            decide if, when and how to exercise its rights under the BTG CONSENT
            LETTER.

18.   TERM AND TERMINATION

18.1  TERM.

      This AGREEMENT is effective as of the date first above written and, unless
      sooner terminated as provided herein, shall continue for as long as
      DISTRIBUTOR is distributing the PRODUCT in the TERRITORY.

18.2  AGREEMENT TERMINATION.

      This AGREEMENT may be terminated by either PARTY if:

      (a)   (i) the other PARTY fails to observe, perform or otherwise breaches
            any of its material covenants, agreements or obligations under this
            AGREEMENT in any material respect and (ii) such failure continues
            for a period of thirty (30) days after receipt by the other party of
            notice thereof from the party specifying such failure. In the event
            of a non-monetary breach, if the breach is not reasonably capable of
            being cured within the thirty (30) day period, and the breaching
            PARTY is making a good faith effort to cure the breach, the
            notifying PARTY may not terminate this AGREEMENT pursuant to this
            subsection without a further ninety (90) days elapsing from the
            original notice of breach without the breach having been cured.

      (b)   the other party files or institutes bankruptcy, reorganization,
            liquidation, receivership or similar proceedings under any debt
            relief laws or fails for more than sixty (60) days to take steps to
            oppose the initiation of such actions against it.

18.3  USE OF PRODUCT AFTER TERMINATION.

      Upon the termination of this AGREEMENT under Section 18.2 or 18.6 for any
      reason other than for breach of this AGREEMENT by DISTRIBUTOR, DISTRIBUTOR
      shall have the right to sell all PRODUCT in inventory at the time of
      termination. All such sales of PRODUCT shall be subject to the terms of
      this AGREEMENT, as in effect immediately prior to termination. If this
      AGREEMENT terminates for any breach by DISTRIBUTOR, then L&I may at its
      discretion buy back all or part of the PRODUCT that remain in the
      possession of DISTRIBUTOR and are in good condition with a reasonable
      remaining shelf life. All PRODUCT which is not repurchased by L&I within



                                       54
<PAGE>

      four (4) weeks after termination shall be immediately destroyed by
      DISTRIBUTOR at DISTRIBUTOR'S expense. Upon termination of this AGREEMENT,
      DISTRIBUTOR shall discontinue use of the TRADEMARK and discontinue
      marketing and sale of PRODUCT, except in connection with any sale of
      inventory as provided in this Section.

18.4  NO LOAN REPAYMENT.

      Without limiting in any way DISTRIBUTOR's rights to recover damages from
      L&I in contract or tort or otherwise arising out of any breach by L&I of
      this AGREEMENT, upon termination of this AGREEMENT for any reason
      whatsoever, DISTRIBUTOR shall not be entitled to repayment of any loans or
      payments made to L&I under this AGREEMENT, with the outstanding loan
      amounts and any unpaid interest thereon being a fee for termination of
      this AGREEMENT.

18.5  REPURCHASE OF CERTAIN PRODUCT.

      (a)   L&I shall purchase from DISTRIBUTOR any PRODUCT that was purchased
            by DISTRIBUTOR from L&I under Section 6.1(d) that is in the
            possession of DISTRIBUTOR at COST OF GOODS therefor in the event
            that (a) DISTRIBUTOR terminates this AGREEMENT under Section 11.1(c)
            or Section 18.6 or under Section 18.2 as a result of a breach
            thereof by L&I ; or, (b) if this AGREEMENT is not terminated in the
            event that any such PRODUCT cannot be commercially sold.

      (b)   If L&I is obligated to purchase PRODUCT under Section 18.5(a), L&I
            shall have the right to pay such amount in twelve (12) equal
            consecutive CALENDAR QUARTERLY installments commencing on the date
            that is thirty (30) days after (i) the date of DISTRIBUTOR'S
            termination notice; or (ii) if the AGREEMENT is not terminated the
            date of DISTRIBUTOR'S notice to L&I that the PRODUCT cannot be sold,
            as applicable, plus interest on the unpaid balance at PRIME plus one
            percent. If this AGREEMENT has not been terminated to the extent
            that any such PRODUCT can be reworked and relabeled in accordance
            with applicable law, rules or regulation, DISTRIBUTOR and L&I shall
            use reasonable efforts to rework and relabel such PRODUCT (at the
            expense of L&I) and if as reworked and relabeled, the PRODUCT
            lawfully can be commercially sold in the United States; L&I shall
            not be required to purchase such PRODUCT.

18.6  TERMINATION OF BTG AGREEMENT.

      (a)   In the event that the BTG AGREEMENT is terminated and DISTRIBUTOR
            exercises the rights granted to DISTRIBUTOR by BTG under the BTG
            CONSENT LETTER to become a licensee of BTG, then this AGREEMENT
            shall remain in full force and effect and DISTRIBUTOR and L&I shall
            make such amendments to this AGREEMENT as are required to meet
            DISTRIBUTOR'S obligations under the BTG AGREEMENT to enable
            DISTRIBUTOR to continue to sell the PRODUCT under the AGREEMENT
            while preserving the economic



                                       55
<PAGE>

            terms of this AGREEMENT for both L&I and SCHERING. In the event that
            the BTG Agreement is terminated and DISTRIBUTOR does not exercise
            its rights to become a licensee of BTG pursuant to the BTG CONSENT
            LETTER, then DISTRIBUTOR shall have the right to terminate this
            AGREEMENT.

      (b)   A termination of the BTG AGREEMENT shall not be a breach of this
            AGREEMENT and L&I shall have no liability to DISTRIBUTOR for a
            termination of the BTG AGREEMENT.

      (c)   In the event that the BTG AGREEMENT is terminated and DISTRIBUTOR
            becomes a licensee of BTG pursuant to the terms of the BTG CONSENT
            LETTER, then to the extent permitted by the license between
            DISTRIBUTOR and BTG, L&I shall have the right to manufacture or have
            PRODUCT manufactured for sale to DISTRIBUTOR.

      (d)   If DISTRIBUTOR exercises its rights to become a licensee of BTG,
            DISTRIBUTOR acknowledges that it is becoming such a licensee under
            the terms and conditions of the BTG AGREEMENT and agrees that it
            will not amend the BTG AGREEMENT in a manner that materially affects
            L&I's rights or obligations under this AGREEMENT without the prior
            written consent of L&I.

18.7  EFFECT ON OUTSTANDING OBLIGATIONS.

      The termination of this AGREEMENT shall not affect any then outstanding
      obligations of DISTRIBUTOR or L&I hereunder, including but not limited to
      any payments owed under the provisions of this AGREEMENT while it was in
      effect and payment for binding and partially binding orders under Section
      6 and 8.2(i) (but subject to Section 18.5), nor preclude either PARTY from
      pursuing all rights and remedies it may have at law or in equity with
      respect to any breach of this AGREEMENT nor prejudice either PARTY's right
      to obtain performance of any obligation provided for in this AGREEMENT
      that survives termination of this AGREEMENT. Any such amount owed to a
      party shall be paid within thirty (30) days of the termination of this
      AGREEMENT. For the avoidance of doubt, DISTRIBUTOR is not required to make
      any loan that is not due to be made under Section 9.1(a) as of the
      effective date of termination. The provisions of Sections 3.8, 6.12, 12.4,
      13.3, 13.4, 13.5(c), 13.10(a), 14.1, 14.2, 15, 18.3, 18.4, 18.5, 18.6,
      18.7, and 19 and any other provisions, which by their intent are meant to
      survive termination of this AGREEMENT, shall survive the termination of
      this AGREEMENT for the longest period permitted by applicable law.

18.8  TERMINATION BY DISTRIBUTOR WITHOUT CAUSE.

      At any time after five (5) years after the Effective Date, DISTRIBUTOR
      shall have the right to terminate this AGREEMENT in the entirety or its
      distribution rights with respect to PRODUCT in the PROFIT-SHARING
      TERRITORY or in all countries of the OTHER TERRITORY by eighteen (18)
      months' prior written notice to L&I. For avoidance of doubt the PARTIES
      state that the earliest point at which DISTRIBUTOR



                                       56
<PAGE>

      may terminate this AGREEMENT pursuant to this Section 18.8 is by a
      termination notice delivered to L&I forty-two months following the
      Effective Date, terminating this AGREEMENT as of the fifth (5th)
      anniversary of the Effective Date.

19.   MISCELLANEOUS PROVISIONS

19.1  CHOICE OF LAW; VENUE.

      This AGREEMENT shall be governed by and construed in accordance with the
      laws of the State of Delaware without giving effect to its conflict of law
      rules and regulations. Any legal action arising under this AGREEMENT shall
      be brought in the United States District Court located in Delaware.
      DISTRIBUTOR and L&I hereby submit and consent to jurisdiction in the State
      of Delaware and hereby consent to venue in such court.

19.2  INTEGRATION;  AMENDMENT.

      This AGREEMENT and appendices referred to herein and the agreement of
      Appendix J set forth the entire agreement and understanding between the
      PARTIES as to the subject matter thereof and supersedes all prior
      agreements in this respect. There shall be no amendments or modifications
      to this AGREEMENT, except by a written document which is signed by both
      PARTIES.

19.3  HEADINGS.

      The headings in this AGREEMENT have been inserted for the convenience of
      reference only and are not intended to limit or expand on the meaning of
      the language contained in the particular article or section.

19.4  WAIVER.

      Any delay in enforcing a party's rights under this AGREEMENT or any waiver
      as to a particular default or other matter shall not constitute a waiver
      of a party's right to the future enforcement of its rights under this
      AGREEMENT, excepting only as to an expressed written and signed waiver as
      to a particular matter for a particular period of time.

19.5  INVALIDITY.

      In the event any provision of this AGREEMENT should be held invalid,
      illegal or unenforceable, the remaining provisions shall not be affected
      or impaired and the PARTIES will use all reasonable efforts to replace the
      applicable provision with a valid, legal and enforceable provision which
      insofar as practical implements the purposes hereof, provided, however,
      that if the PARTIES fail to reach such agreement within sixty (60) days, a
      PARTY whose rights or obligations are materially affected as a result of a
      provision being held invalid, illegal or unenforceable may terminate this
      AGREEMENT.


                                       57
<PAGE>

19.6  ARBITRATION.

      In the event the PARTIES are unable to reach agreement with respect to any
      matter which is to be subject to arbitration in accordance with Section
      6.8(b), 6.13, 12.1(c)(iii)(I), 13.6 or 13.7, such will be determined
      through binding arbitration in accordance with the Commercial Rules of
      Arbitration of the American Arbitration Association. The site of the
      arbitration shall be New York, New York.

      The arbitration panel shall be comprised of three (3) arbitrators. Each
      PARTY shall be entitled to appoint one arbitrator. The PARTIES shall
      appoint their respective arbitrators within thirty (30) days after
      submission for arbitration. If either PARTY shall fail to make timely
      appointment of its arbitrator, the arbitration shall be heard and decided
      by the sole arbitrator duly appointed by the other PARTY. Where both
      PARTIES have timely appointed their respective arbitrators, the two
      arbitrators so appointed shall agree on the appointment of the third
      arbitrator from the list of arbitrators maintained by the American
      Arbitration Association. If the PARTIES' appointed arbitrators shall fail
      to agree within thirty (30) days from the date both PARTIES' arbitrators
      have been appointed, on the identity of the third arbitrator, then such
      arbitrator shall be appointed by the appropriate administrative body of
      the American Arbitration Association.

      Within ten (10) days of appointment of the full arbitration panel, the
      PARTIES shall exchange their final proposed positions with respect to the
      matters to be arbitrated, which shall approximate as closely as possible
      the closest positions of the PARTIES previously taken in the negotiations.
      Within thirty (30) days of appointment of the arbitration Panel, each
      PARTY shall submit to the arbitrators a copy of the proposed position
      which it previously delivered to the other PARTY, together with a brief or
      other written memorandum supporting the merits of its proposed position.
      The arbitration panel shall promptly convene a hearing, at which time each
      PARTY shall have one (1) hour to argue in support of its proposed
      position. The PARTIES will not call any witnesses in support of their
      arguments.

      The arbitration panel shall select either of the PARTY's proposed position
      on the issue as the binding final decision to be embodied as an agreement
      between the PARTIES. In making their selection, the arbitrators shall not
      modify the terms or conditions of either PARTY's proposed position; nor
      will the arbitrators combine provisions from both proposed position. In
      making their selection, the arbitrators shall consider the terms and
      conditions of this AGREEMENT, the relative merits of the proposed position
      and the written and oral arguments of the PARTIES. In the event the
      arbitrators seek the guidance of the law of any jurisdiction, the law of
      the State of Delaware shall govern.

      The arbitrators shall make their decision known to the PARTIES as quickly
      as possible by delivering written notice of their decision to both
      PARTIES. Such written notice need not justify their decision. The PARTIES
      will execute any and all papers necessary to obligate the PARTIES to the
      position selected by the arbitration Panel within five (5) days of receipt
      of notice of such selection. The decision of the arbitrators shall be
      final

                                       58
<PAGE>

      and binding on the PARTIES, and specific performance may be ordered by any
      court of competent jurisdiction.

      The PARTIES will bear their own costs in preparing for the arbitration.
      The costs of the arbitrators will be equally divided between the PARTIES.

20.   FORCE MAJEURE

20.1  Neither party shall be liable to the other for any default hereunder,
      which is not a payment default, which is due to cause beyond the control
      of the party in default, including but not limited to the actions or
      inactions of any government agency or instrumentality; breakdown of plant
      or machinery or shortages of labor, fuel, transportation of materials,
      fires, floods, earthquakes, war, riots or instructions. If either party
      shall seek to rely on Force Majeure it shall give written notice to the
      other indicating the details of the act which it claims has put due
      performance of its obligations beyond its control. In addition, the
      affected party shall exert all reasonable efforts to eliminate or cure any
      Force Majeure event and to resume performance with all possible speed. In
      the event this cannot be done within six (6) months, the parties shall
      either resolve the matter by mutual agreement or terminate this AGREEMENT.
      Each PARTY shall retain its legal remedies notwithstanding the operation
      of this Section.

21.   SUCCESSORS

21.1  Subject to Section 22, the rights and obligations included in this
      AGREEMENT shall be binding upon the parties hereto and their successors
      and assigns.

22.   ASSIGNMENT

22.1  This AGREEMENT may not be assigned by either PARTY without the written
      consent of the other PARTY, provided, however, that either PARTY shall
      have the right to assign this AGREEMENT in connection with the sale or
      transfer of all or substantially all of its assets or in the connection
      with a merger or consolidation or similar transaction, and further, with
      respect to L&I a transfer of its assets to one or more of its partners or
      a sale of the partnership.

23.   NOTICES

23.1  Any notice to be given under this AGREEMENT shall be effective when
      received at the address set forth below by registered or certified mail or
      an express delivery service. Notices shall be delivered to the respective
      PARTIES at the addresses set forth below:

      To L&I:  L&I Partners, L.P.
               c/o ILEX Oncology, Inc.
               11550 IH-10 West, Suite 100
               San Antonio, TX  78230



                                       59
<PAGE>

                                    and

               L&I Partners, L.P.
               c/o Leukosite, Inc.
               215 First Street
               Cambridge, MA  02142

      Copy to: Carella, Byrne, Bain, Gilfillan,
               Cecchi, Stewart & Olstein
               6 Becker Farm Road
               Roseland, New Jersey 07068
               Fax: (973) 994-1744
               ATTN: Elliot M. Olstein, Esq.

      To SCHERING:
               Schering Aktiengesellschaft
               13342 Berlin
               Germany
               Attention:  Head of Oncology SBU

      Copy to:
               Schering Aktiengesellschaft
               13342 Berlin
               Germany
               Attention:  Legal Department


Each PARTY shall have the right to designate a separate address for receipt of
purchase orders, forecasts, acknowledgements, invoices and other routine
correspondence relating to supply of PRODUCT.

24.   LIMITATION ON COMMITTEE ACTIVITY.

         Notwithstanding the creation of the DEVELOPMENT COMMITTEE or MARKETING
COMMITTEE, or any subcommittees thereof, each PARTY to this AGREEMENT shall
retain the rights, powers, and discretion granted to it hereunder, and neither
the DEVELOPMENT COMMITTEE, MARKETING COMMITTEE, nor any subcommittees thereof
shall be delegated or vested with any such rights, powers, or discretion unless
such delegation or vesting is expressly provided for herein or the PARTIES
expressly so agree in writing. Neither the DEVELOPMENT COMMITTEE, MARKETING
COMMITTEE, nor any subcommittee shall have the power to amend or modify this
AGREEMENT which may be amended or modified only as provided in Section 19.2.



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<PAGE>

25.   AMBIGUITIES.

         Ambiguities, if any, in this AGREEMENT shall not be construed against
either PARTY, irrespective of which PARTY may be deemed to have authored the
ambiguous provision.
























                                       61
<PAGE>


         IN WITNESS WHEREOF, the parties hereto have caused this AGREEMENT to be
executed by their respective representatives hereunto duly authorized as of the
day and year first above-written.

SCHERING, A.G.                         L&I PARTNERS, L.P.


By: /s/ Klaus Pohle                    By: /s/ Christopher K. Mirabelli
   -----------------------------          ---------------------------------
Name:   Klaus Pohle                    Name:   Christopher K. Mirabelli
     ---------------------------            -------------------------------
Title:  Vice Chairman                  Title:  President
     ---------------------------            -------------------------------
        Executive Board of Directors
     ---------------------------


By: /s/ Gunter Stock
   -----------------------------
Name:   Prof. Gunter Stock
     ---------------------------
Title:  Member, Executive
     ---------------------------
        Board of Directors
     ---------------------------









                                       62
<PAGE>

                                TABLE OF CONTENTS

<TABLE>
<CAPTION>

                                                                       PAGE
<S> <C>                                                                 <C>
1.  DEFINITIONS..........................................................1
2.  APPOINTMENT..........................................................9
    2.1      Grant of Distribution Rights................................9
    2.2      Limitation on Discounting...................................9
    2.3      Sales Through SUBDISTRIBUTORS...............................9
3.  MARKETING IN THE PROFIT-SHARING TERRITORY...........................10
    3.1      Marketing Committee........................................10
    3.2      Marketing Effort of DISTRIBUTOR............................11
    3.3      Earnings Reports...........................................12
    3.4      QUARTERLY Payment of APPROPRIATE PERCENTAGE................13
    3.5      YEARLY Payment of APPROPRIATE PERCENTAGE...................13
    3.6      Credit Toward Loan Balance.................................14
    3.7      Payment in Lieu of EARNINGS................................14
    3.8      Recordkeeping by DISTRIBUTOR...............................14
    3.9      Co-Promotion...............................................15
    3.10     Payment of Insurance Premiums..............................15
4.  MARKETING IN THE OTHER TERRITORY....................................16
    4.1      Sales Forecast.............................................16
    4.2      Marketing Efforts..........................................16
5.  ORPHAN DRUG EXCLUSIVITY.............................................17
6.  PURCHASE OF PRODUCTS................................................17
    6.1      Purchase and Sale Requirements.............................17
    6.2      Certain Packaging and Labeling by DISTRIBUTOR..............19
    6.3      Priority in Supply.........................................19
    6.4      Title, Risk................................................20
    6.5      Superiority of AGREEMENT...................................20
    6.6      Price for PROFIT-SHARING TERRITORY.........................20
    6.7      Price for OTHER TERRITORY..................................21
    6.8      THIRD PARTY Royalties......................................22
    6.9      Payment for PRODUCT........................................23
</TABLE>

                                       i
<PAGE>

<TABLE>
<S> <C>                                                                 <C>
    6.10     Delivery of Accounting.....................................23
    6.11     Currency Conversion........................................25
    6.12     Recordkeeping by DISTRIBUTOR...............................25
    6.13     Manufacturer other than BI.................................25
    6.14     Alternate Forecasting/Ordering Procedures..................27
7.  PAYMENT.............................................................27
8.  BI Agreement........................................................27
    8.1      Activities Under BI AGREEMENT..............................28
    8.2      Forecasts;  Orders;  Warranties............................28
9.  LOAN................................................................30
10. DEVELOPMENT COMMITTEE...............................................31
11. DEVELOPMENT FOR  CLL INDICATIONS....................................32
12. DEVELOPMENT FOR OTHER INDICATIONS...................................34
    12.2     Loan Reductions............................................38
    12.3.    Further Loan Reductions....................................38
    12.4     DISTRIBUTOR Audit Rights...................................38
13. OTHER RESPONSIBILITIES..............................................39
    13.1     Compliance with Law........................................39
    13.2     Prohibition on Exports.....................................39
    13.3     Negation of Partnership;  Etc..............................39
    13.4     Confidentiality............................................39
    13.5     Appointment of Authorized Agent............................41
    13.6     Exclusivity Protection For DISTRIBUTOR.....................42
    13.7     Exclusivity Protection For L&I.............................44
    13.8     Ownership of Regulatory Licenses...........................44
    13.9     AFFILIATES and SUBDISTRIBUTORS.............................44
    13.10    Reports....................................................45
    13.11    Patent Markings............................................45
    13.12    Preclinical and Clinical Data..............................46
    13.13    Infringement by Third Parties..............................46
    13.14    Infringement of Third Party Rights.........................46
    13.15    Superiority of Indemnity Provisions........................47
    13.16    Coordination of Inspection Rights..........................47
</TABLE>

                                       ii
<PAGE>

<TABLE>
<S> <C>                                                                 <C>
14. TRADEMARK AND TRADE DRESS...........................................47
15. INDEMNITY...........................................................48
    15.1     Indemnification by Distributor for Negligence, Willful
             Misconduct, or Breach......................................48
    15.2     Indemnification by L&I for Negligence, Willful
             Misconduct, or Breach......................................48
    15.3     General Indemnification by DISTRIBUTOR ....................48
    15.4     General indemnification by L&I.............................49
    15.5     Conditions to Indemnification..............................49
    15.6     Insurance..................................................50
16. ADVERSE REACTIONS; COMPLAINTS.......................................50
    16.1     Preparation of Standard Operating Procedure................50
    16.2     Agency Action..............................................50
    16.3     Recalls....................................................51
17. WARRANTIES..........................................................51
    17.1     Mutual Warranty............................................51
    17.2     L&I Warranties.............................................52
    17.3     Negation of other Representations and Warranties...........53
    17.4     Third Party Licenses.......................................53
    17.5     DISTRIBUTOR Payments Under BTG AGREEMENT...................53
18. TERM AND TERMINATION................................................54
    18.1     Term.......................................................54
    18.2     Agreement Termination......................................54
    18.3     Use of PRODUCT after Termination...........................54
    18.4     No Loan Repayment..........................................55
    18.5     Repurchase of Certain Product..............................55
    18.6     Termination of BTG AGREEMENT...............................55
    18.7     Effect on Outstanding Obligations..........................56
    18.8     Termination by DISTRIBUTOR Without Cause...................56
19. MISCELLANEOUS PROVISIONS............................................57
    19.1     Choice of Law; Venue.......................................57
    19.2     Integration;  Amendment....................................57
    19.3     Headings...................................................57
    19.4     Waiver.....................................................57
    19.5     Invalidity.................................................57
    19.6     Arbitration................................................58
20. FORCE MAJEURE.......................................................59
21. SUCCESSORS..........................................................59
22. ASSIGNMENT..........................................................59
23. NOTICES.............................................................59
24. LIMITATION ON COMMITTEE ACTIVITY....................................60
25. AMBIGUITIES.........................................................61
</TABLE>

                                      iii




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