CELGENE CORP /DE/
10-K/A, 1999-05-05
COMMERCIAL PHYSICAL & BIOLOGICAL RESEARCH
Previous: APPLIED IMAGING CORP, 10-Q, 1999-05-05
Next: MORGAN STANLEY DEAN WITTER MUNICIPAL INCOME TRUST, N-30D, 1999-05-05



                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


                                   FORM 10-K A-2

         Annual Report Pursuant to Section 13 or 15(d) of the Securities
Exchange Act of 1934 (Fee Required) For the fiscal year ended December 31, 1998

         Transition Report Pursuant to Section 13 or 15(d) of the Securities
Exchange Act of 1934 (No Fee Required) For the transition period from
___________ to ___________

Commission File No. 0-16132


                               CELGENE CORPORATION
             (Exact name of registrant as specified in its charter)


           Delaware                                       22-2711928
- --------------------------------                --------------------------------
(State or other jurisdiction of                 (I.R.S. Employer Identification)
 incorporation or organization)

         7 Powder Horn Drive
         Warren, New Jersey                                 07059
- -----------------------------------------               --------------
(Address of principal executive offices)                  (Zip Code)

                                 (732) 271-1001
             -------------------------------------------------------
              (Registrant's telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:            None

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

                     Common Stock, par value $.01 per share
                                (Title of Class)

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

                                    Yes  X        No
                                        ---

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

Aggregate market value of voting stock held by non-affiliates of registrant as
of March 1, 1999:  $146,007,577

Number of shares of Common Stock outstanding as of March 1, 1999:  16,753,028

<PAGE>

                               CELGENE CORPORATION
                           ANNUAL REPORT ON FORM 10-K

This form 10-K A-2 amends Celgene Corporation's 10K for the fiscal year ended
December 31, 1998 in the following respects: Exhibit 10-17, Agreement between
the Company and EntreMed, Inc., which has been amended in accordance with the
Company's Amended Confidential Treatment Request dated May 5, 1999, is herewith
attached.

                                TABLE OF CONTENTS
                                -----------------
<TABLE>
<CAPTION>
Item No.                                                                            Page
- --------                                                                            ----

Part I

<S>               <C>                                                                <C>
 1.               Business                                                            1
 2.               Properties                                                         25
 3.               Legal Proceedings                                                  25
 4.               Submission of Matters to a Vote of
                     Security Holders                                                25
Part II

 5.               Market for registrant's Common Equity
                     and Related Stockholder Matters                                 26
 6.               Selected Financial Data                                            27
 7.               Management's Discussion and Analysis
                     of Financial Condition and results of Operations                28
 8.               Financial Statements and Supplementary Data                        32
 9.               Changes in and disagreements with Accountants
                     on Accounting and Financial Disclosure                          33

Part III

10.               Directors and Executive Officers of the
                     Registrant                                                      33
11.               Executive Compensation                                             35
12.               Security Ownership of Certain Beneficial
                     Owners and Management                                           39
13.               Certain Relationships and Related
                     Transactions                                                    40
                     Signatures                                                      41
Part IV

14.               Exhibits, Financial Statements, and
                     Reports on Form 8-K                                            F-1
</TABLE>


<PAGE>
                                   SIGNATURES

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

                                                 CELGENE CORPORATION

                                                 By  /s/ Sol J. Barer
                                                     ----------------
                                                     Sol J. Barer
                                                     President and
                                                     Chief Operating Officer

Date: May 5, 1999

<PAGE>

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

<TABLE>
<CAPTION>
Signature                     Title                                     Date
- ---------                     -----                                     ----
<S>                           <C>                                       <C> 
/s/ John W. Jackson           Chairman of the Board and Chief           March 31, 1999
- -------------------           Executive Officer
John W. Jackson               

/s/ Sol J. Barer              Director                                  March 31, 1999
- -------------------
Sol J. Barer

/s/ Jack L. Bowman            Director                                  March 31, 1999
- -------------------
Jack L. Bowman

/s/ Frank T. Cary             Director                                  March 31, 1999
- -------------------
Frank T. Cary

/s/ Arthur Hull Hayes, Jr.    Director                                  March 31, 1999
- -------------------
Arthur Hull Hayes, Jr.

/s/ Gilla Kaplan              Director                                  March 31, 1999
- -------------------
Gilla Kaplan

/s/ Richard C. E. Morgan      Director                                  March 31, 1999
- -------------------
Richard C. E. Morgan

/s/ Walter L. Robb            Director                                  March 31, 1999
- -------------------
Walter L. Robb

/s/ Lee J. Schroeder          Director                                  March 31, 1999
- -------------------
Lee J. Schroeder

/s/ James R. Swenson          Controller (Chief Accounting Officer)     March 31, 1999
- -------------------
James R. Swenson
</TABLE>

The foregoing constitutes a majority of the directors.

                                       41
<PAGE>


(c)      Exhibit Index.

3.1      Certificate of Incorporation of the Company, as amended (incorporated
         by reference to Exhibit 3.1 to the Company's Registration Statement on
         Form S-1, dated July 24, 1987).

3.2      Bylaws of the Company (incorporated by reference to the Company's
         Current Report on Form 8K, dated September 16, 1996).

10.1     Lease Agreement, dated January 16, 1987, between the Company and Powder
         Horn Associates (incorporated by reference to Exhibit 10.17 to the
         Company's Registration Statement on Form S-1, dated July 24, 1987).

10.2     1992 Long-Term Incentive Plan (incorporated by reference to Exhibit A
         to the Company's Proxy Statement, dated May 30, 1997).

10.3     1995 Non-Employee Directors' Incentive Plan (incorporated by reference
         to Exhibit B to the Company's Proxy Statement, dated May 30, 1997).

10.4     Agent's Warrant issued in connection with the placement of 8%
         Convertible Debentures (incorporated by reference to Exhibit 10.2 to
         the Company's Quarterly Report on Form 10Q for the quarter ended June
         30, 1995).

10.5     Agent's Warrant issued in connection with the placement of Series A
         Convertible Preferred Stock (incorporated by reference to the Company's
         Annual Report on Form 10K for the year ended December 31, 1995).

10.6     Form of Lock-Up Warrant issued to certain holders of Series A
         Convertible Preferred Stock (incorporated by reference to the Company's
         Registration Statement on Form S-3 dated November 25, 1997 (No.
         333-38891)).

10.7     Form of Warrant to be issued in connection with the issuance of Series
         B Convertible Preferred Stock (incorporated by reference to Exhibit
         10.2 to the Company's Current Report on Form 8K dated June 10, 1997).

10.8     Rights Agreement, dated as of September 16, 1996, between Celgene
         Corporation and American Stock Transfer & Trust Company (incorporated
         by reference to the Company's Registration Statement on Form 8A, filed
         on September 16, 1996).

10.9     Form of indemnification agreement between the Company and each officer
         and director of the Company (incorporated by reference to Exhibit 10.12
         to the Company's Annual Report on Form 10K for the year ended December
         31, 1996).

10.10    Form of Employment Agreement dated September 30, 1997 between the
         Company and John W. Jackson (incorporated by reference to the Company's
         Registration Statement on Form S-3 dated November 25, 1997 (No.
         333-38891)).

10.11    Form of Employment Agreement dated September 30, 1997 between the
         Company and Sol J. Barer (incorporated by reference to the Company's
         Registration Statement on Form S-3 dated November 25, 1997 (No.
         333-38891)).

                                      F-20
<PAGE>

10.12    Manufacturing Agreement between Penn Pharmaceuticals Limited and the
         Company (incorporated by reference to the Company's Registration
         Statement on Form S-3 dated November 25, 1997 (No.
         333-38891)).

10.13    Celgene Corporation Replacement Stock Option Plan (incorporated by
         reference to Exhibit 99.1 of the Company's Registration Statement on
         Form S-3 dated May 18, 1998 (No. 333-52963)).

10.14    Form of Stock Option Agreement to be issued in connection with the
         Celgene Corporation Replacement Stock Option Plan (incorporated by
         reference to Exhibit 99.2 of the Company's Registration Statement on
         Form S-3 dated May 18, 1998 (No. 333-52963)).

10.15    1998 Long Term-Incentive Plan (incorporated by reference to Exhibit A
         to the Company's Proxy Statement, dated May 18, 1998).

10.16    Stock Purchase Agreement dated June 23, 1998 between the Company and
         Biovail Laboratories Incorporated (incorporated by reference to the
         Company's Current Report on Form 8K filed on July 17, 1998 (No.
         000-16132)).

10.17    Agreement dated December 9, 1998 between the Company and EntreMed, Inc.
         (certain portions of the agreement have been omitted and filed
         separately with the United States Securities and Exchange Commission
         pursuant to a request for confidential treatment.

* 23.1     Consent of KPMG LLP

* 27.      Financial Data Schedule

- -------------
* Previously Filed






["..." indicates material has been omitted pursuant to a Confidential Treatment
Request, which the Company has filed separately with the Securities and Exchange
                                  Commission]






                                    AGREEMENT



                                 by and between



                                 ENTREMED, INC.



                                       and



                               CELGENE CORPORATION






<PAGE>

                                TABLE OF CONTENTS

                                                                    Page
                                                                    ----
SECTION 1 - DEFINITIONS................................................1
      1.1   "AFFILIATE"................................................2
      1.2   "CALENDAR QUARTER".........................................2
      1.3   "CELGENE DEVELOPED INTELLECTUAL PROPERTY"..................2
      1.4   "CELGENE DEVELOPED PATENT RIGHTS"..........................2
      1.5   "CELGENE DEVELOPED TECHNOLOGY RIGHTS"......................2
      1.6   "CELGENE EXISTING INTELLECTUAL PROPERTY"...................3
      1.7   "CELGENE EXISTING PATENT RIGHTS"...........................3
      1.8   "CELGENE EXISTING TECHNOLOGY RIGHTS".......................3
      1.9   "CMCC AGREEMENT"...........................................3
      1.10  "ENTREMED DEVELOPED PATENT RIGHTS".........................3
      1.11  "ENTREMED DEVELOPED TECHNOLOGY RIGHTS".....................4
      1.12  "ENTREMED EXISTING PATENT RIGHTS"..........................4
      1.13  "ENTREMED EXISTING TECHNOLOGY RIGHTS"......................4
      1.14  "ENTREMED INTELLECTUAL PROPERTY"...........................4
      1.15  "FIELD"....................................................5
      1.16  "FIRST COMMERCIAL SALE"....................................5
      1.17  "NCI AGREEMENT"............................................5
      1.18  "NDA"......................................................5
      1.19  "NET SALES"................................................5
      1.20  "PATENT RIGHT(s)"..........................................6
      1.21  "PRODUCT"..................................................7
      1.22  "SUBLICENSEE"..............................................7
      1.23  "TECHNOLOGY RIGHTS"........................................7
      1.24  "TERRITORY"................................................8
      1.25  "THALIDOMIDE"..............................................8
      1.26  "THIRD PARTY(IES)".........................................8
      1.27  "VALID CLAIM"..............................................8


SECTION 2 - GRANT......................................................8
      2.1   Grant of ENTREMED EXISTING PATENT RIGHTS
            and ENTREMED EXISTING TECHNOLOGY RIGHTS....................8
      2.2   Grant of ENTREMED DEVELOPED PATENT RIGHTS and 
            ENTREMED DEVELOPED TECHNOLOGY RIGHTS.......................9
      2.3   CELGENE'S Right To Sublicense..............................9
      2.4   Assignment Of Investigational New Drug and Orphan Drug
            Status Applications.......................................10
      2.5   Assignment Of Agreements..................................10
      2.6   Technology Transfer.......................................11
      2.7   Understanding Regarding CMCC AGREEMENT....................11

                                      -i-

<PAGE>


SECTION 3 - DUE DILIGENCE.............................................13
      3.1   In the United States......................................13
      3.2   Outside the United States.................................15
      3.3   For PRODUCTS For Use In Animals...........................16
      3.4   No Other ENTREMED Rights..................................17
      3.5   Co-Promotion By CELGENE And ENTREMED......................17
      3.6   Establishment Of A Scientific Committee...................19


SECTION 4 - ROYALTIES.................................................21
      4.1   Royalty Payments..........................................21
      4.2   Sublicensing Payments and Royalties.......................22
      4.3   Later-Issued VALID CLAIM..................................23
      4.4   No Multiple Royalties.....................................23
      4.5   THIRD PARTY Sales.........................................23
      4.6   Recordkeeping.............................................24
      4.7   Quarterly Payments and Reports............................25
      4.8   Accounting Reports........................................25


SECTION 5 - CONFIDENTIALITY...........................................26
      5.1   Confidential Information..................................26
      5.2   Non-Confidential Information..............................27
      5.3   Disclosure To THIRD PARTIES...............................27
      5.4   Disclosure To Sublicensees................................28
      5.5   Public Statements.........................................28


SECTION 6 - ADVERSE MEDICAL EXPERIENCES...............................28
      6.1   Adverse Medical Experience Reporting......................28


SECTION 7 - PATENTS...................................................29
      7.1   Patent Prosecution........................................29
      7.2   Cooperation In Prosecution................................29
      7.3   Infringement and Declaratory Judgment Actions.............30


SECTION 8 - REPRESENTATIONS AND WARRANTIES............................32
      8.1   By Both Parties...........................................32
      8.2   By ENTREMED...............................................32


SECTION 9 - INDEMNIFICATION AND INSURANCE.............................34
      9.1   By CELGENE................................................34
      9.2   By ENTREMED...............................................35
      9.3   Conditions to Indemnification.............................36

                                      -ii-

<PAGE>

SECTION 10 - ASSIGNMENT AND SUCCESSORS................................37
      10.1  By Either Party...........................................37
      10.2  By CELGENE................................................37
      10.3  CELGENE As Guarantor......................................37
      10.4  Binding Effect............................................37


SECTION 11 - FORCE MAJEURE............................................38


SECTION 12 - TERMINATION..............................................38
      12.1  Term......................................................38
      12.2  By Reason Of FDA Action...................................38
      12.3  Termination Of Royalty Obligations........................38
      12.4  Breach....................................................39
      12.5  Insolvency................................................41
      12.6  Work-In-Progress..........................................41
      12.7  Survival..................................................41
      12.8  Reversion of Rights.......................................41


SECTION 13 - GENERAL PROVISIONS.......................................42
      13.1  Relationship of Parties...................................42
      13.2  Entire Understanding......................................42
      13.3  Governing Law.............................................42
      13.4  Headings..................................................42
      13.5  No Waiver.................................................42
      13.6  Export Controls...........................................42
      13.7  Notices...................................................43
      13.8  Original Counterparts.....................................43

                                     -iii-

<PAGE>




                                    AGREEMENT

      This Agreement is effective this 9th day of December, 1998 (the "EFFECTIVE
DATE") by and between CELGENE CORPORATION, a Delaware corporation located at 6
Powder Horn Drive, Warren, New Jersey 07059 ("CELGENE"), and ENTREMED, INC., a
Delaware Corporation located at 9610 Medical Center Drive, Rockville, Maryland
20850 ("ENTREMED").

      WHEREAS, CELGENE is a company that develops, manufactures, markets and
sells pharmaceutical products for healthcare, and that has developed and owns
certain patents, patent applications, proprietary technology, know-how, and
United States Food and Drug Administration ("FDA") filings relating to PRODUCTS,
as hereinafter defined; and

      WHEREAS, ENTREMED is the owner or exclusive licensee of certain PATENT
RIGHTS as hereinafter defined, TECHNOLOGY RIGHTS, as hereinafter defined, and
FDA filings related to PRODUCTS, and has certain rights and obligations relating
to PRODUCTS pursuant to agreements with THIRD PARTIES, as hereinafter defined;
and

      WHEREAS, CELGENE desires to obtain assignments and/or exclusive rights in
the TERRITORY in and to all of ENTREMED's PATENT RIGHTS, TECHNOLOGY RIGHTS,
rights by agreement, and FDA filings, whether presently existing or subsequently
developed, for the commercial development, use, and sale of PRODUCTS; and

      WHEREAS, ENTREMED is willing to grant the assignments and/or exclusive
rights desired by CELGENE, as set forth herein, in order to transfer its entire
present and future right, title and interest in PRODUCTS to CELGENE.

      NOW, THEREFORE, in consideration of the mutual promises and other good and
valuable consideration, the parties agree as follows:

                            SECTION 1 -- DEFINITIONS

      The terms used in this Agreement have the following meaning:
<PAGE>


1.1   The term "AFFILIATE" as applied to either party shall mean any company or
      other legal entity other than the party in question in whatever country
      organized, controlling controlled by or under common control with that
      party. The term "control" means ownership or control, directly or
      indirectly, of at least fifty percent (50%) of the outstanding stock or
      voting rights entitled to elect directors.

1.2   The term "CALENDAR QUARTER" shall mean the period of three (3) consecutive
      calendar months ending on March 31, June 30, September 30 or December 31,
      as the case may be.

1.3   The term "CELGENE DEVELOPED INTELLECTUAL PROPERTY" shall mean CELGENE
      DEVELOPED PATENT RIGHTS and CELGENE DEVELOPED TECHNOLOGY RIGHTS.

1.4   The term "CELGENE DEVELOPED PATENT RIGHTS" shall mean any United States or
      foreign patents or patent applications filed by CELGENE, or an AFFILIATE,
      successor or assign thereof at any time subsequent to the EFFECTIVE DATE,
      in which CELGENE has a transferrable interest, relating to a modification
      of a PRODUCT described in any ENTREMED INTELLECTUAL PROPERTY or a method
      of using such PRODUCT, which modification is (a) necessary for the
      manufacture, use, or sale of such PRODUCT, and (b) then currently in use
      by CELGENE at the time ENTREMED exercises its rights under Section
      12.4(b), for the manufacture, use, or sale of such PRODUCT.

1.5   The term "CELGENE DEVELOPED TECHNOLOGY RIGHTS" shall mean any TECHNOLOGY
      RIGHTS developed, obtained, or acquired by CELGENE or an AFFILIATE,
      successor or assign thereof at any time subsequent to the EFFECTIVE DATE,
      in which CELGENE has a transferrable interest, relating to a modification
      of a PRODUCT described in any ENTREMED INTELLECTUAL PROPERTY or a method
      of using or use of such PRODUCT, which modification is (a) necessary for
      the


                                      -2-
<PAGE>

      manufacture, use, or sale of such PRODUCT, and (b) then currently in use
      by CELGENE at the time ENTREMED exercises its rights under Section
      12.4(b), for the manufacture, use, or sale of such PRODUCT.

1.6   The term "CELGENE EXISTING INTELLECTUAL PROPERTY" shall mean CELGENE
      EXISTING PATENT RIGHTS and CELGENE EXISTING TECHNOLOGY RIGHTS.

1.7   The term "CELGENE EXISTING PATENT RIGHTS" shall mean the United States and
      foreign patents and patent applications relating to PRODUCTS in which
      CELGENE has an interest, jointly or solely, as owner, assignee, or
      licensee, whether exclusive or nonexclusive, as of the EFFECTIVE DATE.

1.8   The term "CELGENE EXISTING TECHNOLOGY RIGHTS" shall mean any TECHNOLOGY
      RIGHTS developed, obtained, or acquired, solely or jointly, exclusively or
      non-exclusively, by CELGENE or an AFFILIATE, successor or assign thereof
      as of the EFFECTIVE DATE.

1.9   The term "CMCC AGREEMENT" shall mean that certain License Agreement
      entered into by and between ENTREMED and Children's Medical Center
      Corporation ("CMCC"), dated May 26, 1994, as amended to the date hereof,
      attached hereto as Exhibit A.

1.10  The term "ENTREMED DEVELOPED PATENT RIGHTS" shall mean any United States
      or foreign patent applications relating to PRODUCTS assigned to, licensed
      to or filed, solely or jointly, by ENTREMED, or an AFFILIATE, successor or
      assign thereof at any time subsequent to the EFFECTIVE DATE, including any
      United States or foreign patent applications filed pursuant to the CMCC
      AGREEMENT or NCI AGREEMENT, and the patents issuing therefrom, which
      patent applications and patents shall be added to Appendix A and shall be

                                      -3-
<PAGE>

      included in this Agreement as PATENT RIGHTS and licensed to CELGENE in
      accordance with Section 2 of this Agreement.

1.11  The term "ENTREMED DEVELOPED TECHNOLOGY RIGHTS" shall mean any TECHNOLOGY
      RIGHTS developed, obtained, or acquired, solely or jointly, exclusively or
      non-exclusively, by ENTREMED, or an AFFILIATE, successor or assign thereof
      at any time subsequent to the EFFECTIVE DATE, including any TECHNOLOGY
      RIGHTS developed or obtained pursuant to the CMCC AGREEMENT or NCI
      AGREEMENT, which TECHNOLOGY RIGHTS shall be included in this Agreement and
      licensed to CELGENE in accordance with Section 2 of this Agreement.

1.12  The term "ENTREMED EXISTING PATENT RIGHTS" shall mean the PATENT RIGHTS in
      which ENTREMED has an interest, jointly or solely, as owner, assignee, or
      licensee, whether exclusive or nonexclusive, as of the EFFECTIVE DATE.

1.13  The term "ENTREMED EXISTING TECHNOLOGY RIGHTS" shall mean any TECHNOLOGY
      RIGHTS developed, obtained, or acquired, solely or jointly, exclusively or
      non-exclusively, by ENTREMED, or an AFFILIATE, successor or assign thereof
      as of the EFFECTIVE DATE, including without limitation any TECHNOLOGY
      RIGHTS developed or obtained pursuant to the CMCC AGREEMENT or NCI
      AGREEMENT. ENTREMED EXISTING TECHNOLOGY RIGHTS expressly includes any
      regulatory data and filings, including without limitation all FDA
      Investigational New Drug and Orphan Drug Status applications, as set forth
      in Appendix C.

1.14  The term "ENTREMED INTELLECTUAL PROPERTY" shall mean and include ENTREMED
      DEVELOPED PATENT RIGHTS, ENTREMED DEVELOPED TECHNOLOGY RIGHTS, ENTREMED
      EXISTING PATENT RIGHTS, and ENTREMED EXISTING TECHNOLOGY RIGHTS.

                                      -4-
<PAGE>

1.15  The term "FIELD" shall mean the use of THALIDOMIDE in humans and animals,
      including without limitation any and all diagnostic, prophylactic,
      therapeutic, and research and development uses.

1.16  The term "FIRST COMMERCIAL SALE" shall mean, in each country of the
      TERRITORY, the first sale after the EFFECTIVE DATE in such country to a
      THIRD PARTY in connection with the nationwide introduction of any PRODUCT
      by CELGENE, its AFFILIATES or SUBLICENSEES following marketing and/or
      pricing approval by the appropriate governmental agency for the country in
      which the sale is to be made and, when governmental approval is not
      required, the first sale in that country in connection with the nationwide
      introduction of a PRODUCT in that country.

1.17  The term "NCI AGREEMENT" shall mean that certain Agreement by and between
      the Division of Cancer Treatment at the National Cancer Institute ("NCI")
      and ENTREMED, dated November 16, 1994, and executed on behalf of ENTREMED
      on November 23, 1994, and on behalf of NCI on November 18, 1994, attached
      hereto as Exhibit B.

1.18  The term "NDA" shall mean a New Drug Application filed with the United
      States Food and Drug Administration.

1.19  The term "NET SALES" means the gross amount received by CELGENE or its
      AFFILIATES or SUBLICENSEES for sale of PRODUCT to THIRD PARTIES, less: (i)
      cost of freight, postage, and freight insurance, (if paid by seller); (ii)
      sales taxes, value added taxes, excise taxes, and customs duties; (iii)
      cost of export licenses and any taxes, fees or other charges associated
      with the exportation or importation of PRODUCTS; (iv) rebates accrued,
      incurred or paid to Federal Medicaid and State Medicare and any other
      price reductions required by a governmental agency; (v) rejected
      shipments, returns, and retroactive deductions; (vi) the amount received
      for sales which become the subject of a subsequent temporary or partial
      recall


                                      -5-
<PAGE>

      by a regulatory agency for safety or efficacy reasons outside the control
      of CELGENE; and (vii) customary cash, quantity, and trade discounts;
      provided, however, that a sale or transfer to an AFFILIATE or SUBLICENSEE
      for re-sale by such AFFILIATE or SUBLICENSEE shall not be considered a
      sale for the purpose of this provision but the resale by such AFFILIATE or
      SUBLICENSEE shall be a sale for such purposes. A "sale" shall also include
      a transfer or other disposition for consideration, but not such transfers
      or dispositions, without consideration, for pre-clinical, clinical,
      regulatory or governmental purposes prior to receiving marketing approval
      for the specific indication for which such transfer is made. In the event
      that consideration in addition to or in lieu of money is received for
      PRODUCT, such consideration shall be added to the NET SALES as valued on
      the day of receipt thereof by CELGENE. To the extent that a PRODUCT is
      sold in other than an arms length transaction, NET SALES shall be the fair
      market value of such PRODUCT if sold in an arms length transaction, less
      the costs identified in subsections (i)-(vi) of this Section 1.19. PRODUCT
      shall be considered "sold" at the earlier of (a) the transfer of title in
      such PRODUCT to a person other than an AFFILIATE or SUBLICENSEE of CELGENE
      or (b) the shipment of such PRODUCT from the manufacturing or warehouse
      facilities of CELGENE or its AFFILIATE or SUBLICENSEE to a THIRD PARTY.

1.20 The term "PATENT RIGHT(s)" shall mean:

      (a)   the United States patent applications and patents listed in Appendix
            A;

      (b)   the United States and foreign patents issued from applications
            listed in Appendix A and from divisionals and continuations of such
            applications;

      (c)   claims of United States continuation-in-part applications and of
            equivalent foreign applications, and of the resulting patent(s),
            that


                                      -6-
<PAGE>

            are directed to subject matter described in the United States and
            foreign applications listed in Appendix A;

      (d)   claims of all later-filed foreign patent applications, and of the
            resulting patents, that are directed to subject matter described in
            the United States patents and/or patent applications described in
            the foregoing subsections of this Section 1.20;

      (e)   any reissues, re-examinations or extension of United States patents
            described in the foregoing subsections of this Section 1.20; and

      (f)   ENTREMED DEVELOPED PATENT RIGHTS, when assigned to, licensed to or
            filed, solely or jointly, by ENTREMED, or an AFFILIATE, successor or
            assign thereof, pursuant to Section 1.10 of this Agreement.

1.21  The term "PRODUCT" shall mean any article of manufacture, substance,
      material, chemical, formulation or composition for use in the FIELD which
      is or includes THALIDOMIDE as an active ingredient, including, without
      limitation, a composition that comprises THALIDOMIDE and a non-steroidal
      anti-inflammatory compound(s). PRODUCT expressly excludes THALIDOMIDE
      analogs.

1.22  The term "SUBLICENSEE" shall mean any THIRD PARTY licensed by CELGENE to
      make, have made, use, offer to sell, sell or import any PRODUCT.

1.23  The term "TECHNOLOGY RIGHTS" shall mean any information relating to
      PRODUCTS that is not covered by a patent or patent application, including
      without limitation technical and non-technical information, know-how,
      methods, processes, procedures, compositions, devices, formulae,
      protocols, techniques, software, designs, drawings, plans, diagrams,
      specifications, data, the results of tests or assays, and all other
      information relating to PRODUCTS.

                                      -7-
<PAGE>

1.24  The term "TERRITORY" shall mean all countries of the world.

1.25  The term "THALIDOMIDE" shall mean a compound with the chemical structure
      described as 2-(2,6-Dioxo-3-piperidinyl)-1H-isoindole-1,3(2H)-dione, or as
      otherwise defined in the Merck Index, entry 9390, 12th ed., and
      pharmaceutically acceptable salts thereof.

1.26  The term "THIRD PARTY(IES)" shall mean a person or entity who or which is
      neither a party hereto nor an AFFILIATE of a party hereto.

1.27  The term "VALID CLAIM" shall mean an issued claim of an unexpired patent
      ("ISSUED VALID CLAIM") or a claim of a pending patent application, which
      shall not have been withdrawn, canceled or disclaimed, or held invalid or
      unenforceable by a court of competent jurisdiction in an unappealed or
      unappealable decision. Notwithstanding the foregoing to the contrary, a
      claim of a pending patent application, divisional application or
      continuation-in-part shall cease to be a VALID CLAIM if no patent has
      issued on such claim on or prior to the fifth (5th) anniversary of the
      EFFECTIVE DATE of this Agreement, provided that such claim shall once
      again become a VALID CLAIM on the issue date of a patent that subsequently
      issues and covers such claim.

1.28  The use herein of the plural shall include the singular, and the use of
      the masculine shall include the feminine.


                                SECTION 2--GRANT

2.1   Grant of ENTREMED EXISTING PATENT RIGHTS and ENTREMED EXISTING TECHNOLOGY
      RIGHTS. ENTREMED hereby grants to CELGENE and CELGENE hereby accepts from
      ENTREMED an exclusive, royalty bearing right and license or sublicense, as
      the case may be, under the ENTREMED EXISTING PATENT RIGHTS and the

                                      -8-
<PAGE>

      ENTREMED EXISTING TECHNOLOGY RIGHTS to make, have made, use, offer to
      sell, sell, and import PRODUCTS in the TERRITORY.

2.2   Grant of ENTREMED DEVELOPED PATENT RIGHTS and ENTREMED DEVELOPED
      TECHNOLOGY RIGHTS. ENTREMED hereby grants to CELGENE, to the extent not
      prohibited by the United States Government or by prior contractual
      obligations to any THIRD PARTY, and CELGENE hereby accepts from ENTREMED:

      (a)   an exclusive, royalty bearing right and license under the ENTREMED
            DEVELOPED PATENT RIGHTS and the ENTREMED DEVELOPED TECHNOLOGY RIGHTS
            to make, have made, use, offer to sell, sell, and import PRODUCTS in
            the TERRITORY; and

      (b)   to the extent an exclusive license is not available to CELGENE in a
            country under a particular ENTREMED DEVELOPED PATENT RIGHT or
            ENTREMED DEVELOPED TECHNOLOGY RIGHT, but a non-exclusive license
            would be available, ENTREMED hereby grants CELGENE a nonexclusive,
            royalty bearing right and license under such ENTREMED DEVELOPED
            PATENT RIGHT(s) and ENTREMED DEVELOPED TECHNOLOGY RIGHT(s) to make,
            have made, use, offer to sell, sell, and import PRODUCTS in the
            TERRITORY.

2.3   CELGENE'S Right To Sublicense.

      (a)   In the United States. ENTREMED hereby grants to CELGENE the right to
            sublicense ENTREMED INTELLECTUAL PROPERTY in the United States with
            the consent of ENTREMED, to be exercised in ENTREMED's sole
            discretion.

      (b)   Outside the United States. ENTREMED hereby grants to CELGENE the
            right to sublicense ENTREMED INTELLECTUAL


                                      -9-
<PAGE>

            PROPERTY outside the United States with the written consent of
            ENTREMED, which consent shall not be unreasonably withheld. Outside
            the United States, CELGENE shall use reasonable efforts to negotiate
            sublicensing agreements that are commercially reasonable according
            to contemporaneous prevailing standards within the pharmaceutical
            industry.

2.4   Assignment Of Investigational New Drug and Orphan Drug Status
      Applications. Within ten (10) days of the EFFECTIVE DATE, ENTREMED and
      CELGENE shall notify the Food and Drug Administration ("FDA") of the
      transfer of ENTREMED's rights in PRODUCTS to CELGENE by submitting to the
      FDA letters substantially in the form attached hereto as Exhibit C, and
      ENTREMED shall notify CELGENE of its compliance with this Section 2.4 by
      copies of such letters. ENTREMED shall take all further steps necessary or
      helpful to assign to CELGENE all Orphan Drug Status and Investigational
      New Drug applications filed by ENTREMED as of the EFFECTIVE DATE, as set
      forth in Appendix C. If the FDA declines to allow the assignment of any of
      ENTREMED's Investigational New Drug and/or Orphan Drug Status
      application(s) to CELGENE, for whatever reason, then ENTREMED's rights
      under such application(s) will be included in this Agreement as ENTREMED
      EXISTING TECHNOLOGY RIGHTS and will be licensed to CELGENE in accordance
      with Section 2 of this Agreement.

2.5   Assignment Of Agreements. Within ten (10) days of the EFFECTIVE DATE,
      ENTREMED shall notify CMCC and NCI of the sublicense and transfer,
      respectively, of its rights in PRODUCTS to CELGENE, and shall take all
      steps necessary or helpful to assign to CELGENE the NCI AGREEMENT,
      including without limitation requesting consent to assign ENTREMED's
      obligations and entire right, title, and interest, under such agreement to
      CELGENE, and upon receipt of the consent of NCI to assign the NCI
      AGREEMENT, CELGENE will expressly assume all of


                                      -10-
<PAGE>

      ENTREMED's duties and obligations thereunder. In the event that ENTREMED
      is not permitted to assign its rights under the NCI AGREEMENT to CELGENE,
      ENTREMED's rights in any PATENT RIGHTS or TECHNOLOGY RIGHTS resulting from
      the NCI AGREEMENT will be included in this Agreement as ENTREMED DEVELOPED
      PATENT RIGHTS and ENTREMED DEVELOPED TECHNOLOGY RIGHTS, respectively, and
      will be licensed to CELGENE in accordance with Section 2.2 of this
      Agreement.

2.6   Technology Transfer. As soon as reasonably possible following the
      EFFECTIVE DATE, but in no event later than one (1) month after such date,
      ENTREMED shall transfer to CELGENE all ENTREMED EXISTING TECHNOLOGY RIGHTS
      and ENTREMED DEVELOPED TECHNOLOGY RIGHTS not already in CELGENE's
      possession. ENTREMED agrees to disclose and transfer all ENTREMED
      DEVELOPED TECHNOLOGY RIGHTS to CELGENE promptly, as they are obtained or
      developed. ENTREMED also agrees to provide, upon reasonable notice from
      CELGENE, any technical, scientific, statistical, and/or regulatory support
      necessary or useful to CELGENE's understanding and/or use of ENTREMED
      EXISTING TECHNOLOGY RIGHTS and ENTREMED DEVELOPED TECHNOLOGY RIGHTS.

2.7   Understanding Regarding CMCC AGREEMENT. To the extent TECHNOLOGY RIGHTS
      and/or PATENT RIGHTS licensed to CELGENE under this Agreement are rights
      which ENTREMED has licensed from CMCC under the CMCC AGREEMENT, CELGENE
      and ENTREMED understand and agree as follows:

      (a)   The rights licensed to CELGENE by ENTREMED are subject to the terms,
            limitations, restrictions and obligations of the CMCC AGREEMENT.

                                      -11-
<PAGE>

      (b)   CELGENE will comply with the terms, obligations, limitations and
            restrictions of sublicensees under Articles II, V, VII, VIII, IX, X,
            XII, XIII, and XV of the CMCC AGREEMENT.

      (c)   ENTREMED will, at its own expense, timely pay the milestone payment
            of "..." due to CMCC upon completion of a Phase II clinical trial
            for any indication, pursuant to Section 4.1.3 of the CMCC AGREEMENT.
            ENTREMED shall promptly provide written notice to CELGENE of such
            payment.

      (d)   CELGENE will, at its own expense, timely pay the milestone payment
            of "..." due to CMCC upon completion of a Product License
            Application for any indication, pursuant to Section 4.1.4 of the
            CMCC AGREEMENT, which payment shall be made to ENTREMED and timely
            forwarded by ENTREMED to CMCC; provided, however, that if (i) such
            payment becomes due prior to January 1, 2000, and (ii) CELGENE's
            annual sales in the year such payment becomes due are less than
            "...", CELGENE may notify ENTREMED, in writing, that it wishes
            ENTREMED to pay such amount to CMCC directly, which ENTREMED hereby
            agrees to do, and, by June 30, 2000 CELGENE shall reimburse ENTREMED
            the amount paid to CMCC, plus interest calculated at the annual rate
            of the sum of one percent (1%) plus the prime interest rate quoted
            by Citibank, N.A. on the date said payment is due. ENTREMED shall
            promptly provide written notice to CELGENE of all payments under
            this Section 2.7(d).

      (e)   ENTREMED will comply with the terms, obligations, limitations and
            restrictions of the CMCC AGREEMENT, including, without limitation,
            any provisions relating to due diligence, notification with respect
            to sublicenses, and milestone payments, subject to Sections 2.7(c)
            and (d) of this Agreement.

                                      -12-
<PAGE>

      (f)   The CMCC AGREEMENT and ENTREMED's rights thereunder shall remain in
            full force and effect for the life of the last to expire patent
            issued under the Patent Rights, as defined therein, unless earlier
            terminated pursuant to Article XIII of the CMCC AGREEMENT.


                            SECTION 3--DUE DILIGENCE

3.1   In the United States.

      (a)   CELGENE shall initiate and diligently use reasonable efforts to
            develop, or to file for regulatory approval of or register, and to
            market and sell PRODUCTS in the United States. Reasonable efforts
            with respect to the development and/or pursuit of regulatory
            approval or registration for PRODUCTS in the United States shall be
            demonstrated by CELGENE (i) developing and pursuing regulatory
            approval for PRODUCTS for those uses CELGENE, in good faith,
            determines to be commercially and scientifically reasonable,
            including but not limited to (a) one (1) "...", (b) one (1) "...",
            and (c) one (1) "..."; and (ii) funding and conducting clinical
            trials for PRODUCTS for other uses in order to enhance scientific
            knowledge with regard to such PRODUCTS, including for the
            publication of data and results in scientific journals, whether or
            not such clinical trials result in or facilitate the pursuit of
            regulatory approval.

      (b)   ENTREMED agrees that, subject to Section 3.6 of this Agreement, (i)
            the decision regarding which uses to pursue regulatory approval of
            PRODUCTS for, and/or to fund and conduct clinical trials of PRODUCTS
            for, pursuant to Section 3.1(a) of this Agreement, shall be made by
            and in the sole discretion of CELGENE; and (ii) with respect to the
            manner in which regulatory approval is sought and/or clinical trials
            are funded and conducted, CELGENE shall


                                      -13-
<PAGE>

            have sole discretion, including, without limitation, complete
            control over all regulatory submissions of PRODUCTS to the
            appropriate regulatory agencies worldwide, including whether, when,
            and how to file, maintain, withdraw, or abandon an application for
            regulatory approval of PRODUCTS.

      (c)   Within 90 days after the EFFECTIVE DATE, CELGENE shall draft a
            Development Plan outlining CELGENE'S development objectives for
            PRODUCTS, in accordance with Sections 3.1(a)(i) and (b) of this
            Agreement. CELGENE shall consult with ENTREMED concerning the
            Development Plan. The Development Plan shall include suitable
            clinical milestones which are reasonably intended to lead to
            regulatory approval of PRODUCTS, in accordance with Sections
            3.1(a)(i) and (b) of this Agreement.

      (d)   CELGENE shall provide a written summary report to ENTREMED within
            thirty (30) days after June 30th and December 31st of each calendar
            year concerning the efforts being made in accordance with this
            Section 3.1 with respect to PRODUCTS. CELGENE shall provide ENTREMED
            with any additional information reasonably requested by ENTREMED in
            this respect.

      (e)   At ENTREMED'S reasonable request, CELGENE shall provide ENTREMED
            access to all clinical trial data for PRODUCTS conducted by CELGENE
            in accordance with the Development Plan set forth in this Section
            3.1. In the event that rights are returned to ENTREMED under Section
            3.1(f) of this Agreement, ENTREMED shall have the right to review
            and use the clinical trial data in its own clinical program.

      (f)   In the event that CELGENE fails to meet any of its obligations under
            this Section 3.1 with respect to PRODUCTS in the United


                                      -14-
<PAGE>

            States, and such failure is not cured within sixty (60) days after
            written notice thereof is received by CELGENE from ENTREMED, then
            ENTREMED shall have the right and option to terminate the license
            granted in this Agreement and this Agreement by giving CELGENE sixty
            (60) days prior written notice thereof.

3.2   Outside the United States.

      (a)   Diligence. CELGENE shall initiate and diligently use reasonable
            efforts to develop, or to file for regulatory approval of or
            register, and to market and sell PRODUCTS in Europe, in Canada, and
            in the Pacific Rim, Japan, and Australia (collectively, the "PACIFIC
            RIM"). Reasonable efforts with respect to the development and/or
            pursuit of regulatory approval or registration for PRODUCTS in
            Europe, Canada, and the PACIFIC RIM shall be demonstrated by
            CELGENE, or a sublicensee thereof, pursuing regulatory approval for
            PRODUCTS (i) in Italy, France, the United Kingdom, and Germany (in
            the case of Europe), and in Japan and one other country of the
            PACIFIC RIM (in the case of the PACIFIC RIM), within "..." from the
            date of the first FDA approval of a PRODUCT for an oncology
            indication or Crohn's disease, whichever occurs earlier; and (ii) in
            Canada, within one (1) year from the date of the first FDA approval
            of a PRODUCT for an oncology indication or Crohn's disease,
            whichever occurs earlier.

      (b)   CELGENE's Discretion. ENTREMED agrees that, subject to Section 3.6
            of this Agreement, (i) the decision regarding which uses to pursue
            regulatory approval of PRODUCTS for, and/or to fund and conduct
            clinical trials of PRODUCTS for, pursuant to Section 3.2(a) of this
            Agreement, shall be made by and in the sole discretion of CELGENE;
            and (ii) with respect to the manner in


                                      -15-
<PAGE>

            which regulatory approval is sought and/or clinical trials are
            funded and conducted, CELGENE shall have sole discretion, including,
            without limitation, complete control over all regulatory submissions
            of PRODUCTS to the appropriate regulatory agencies worldwide,
            including whether, when, and how to file, maintain, withdraw, or
            abandon an application for regulatory approval of PRODUCTS.

      (c)   Cooperation. If CELGENE fails to use reasonable efforts in Europe,
            Canada, or the PACIFIC RIM, as set forth in Section 3.2(a) of this
            Agreement, or to sublicense its rights to a THIRD PARTY, then
            ENTREMED shall have the right and option to either (i) terminate the
            licenses granted in the region where such failure has occurred,
            i.e., Europe, Canada, or the PACIFIC RIM, respectively, by giving
            CELGENE sixty (60) days prior written notice thereof, or (ii)
            cooperate with CELGENE to find an appropriate SUBLICENSEE for such
            rights.

3.3   For PRODUCTS For Use In Animals.

      (a)   Diligence. CELGENE shall initiate and diligently use reasonable
            efforts to develop, or to file for regulatory approval of or
            register, and to market and sell PRODUCTS for use in animals. Such
            reasonable efforts shall be demonstrated by CELGENE obtaining
            regulatory approval for the sale of a PRODUCT for use in animals
            within four (4) years of the EFFECTIVE DATE in the United States
            and, outside the United States, in one of the following countries:
            Italy, France, the United Kingdom, or Germany.

      (b)   Cooperation. If CELGENE fails to use reasonable efforts either in
            the United States or outside the United States, as set forth in
            Section 3.3(a) of this Agreement, or to sublicense its rights in
            such regions to a THIRD PARTY, then ENTREMED shall have the


                                      -16-
<PAGE>

            right and option to either (i) terminate CELGENE's rights in the
            region where such failure has occurred, i.e., in the United States
            or outside the United States, respectively, in and to such PRODUCTS
            for use in animals by giving CELGENE sixty (60) days prior written
            notice thereof, or (ii) cooperate with CELGENE to find an
            appropriate SUBLICENSEE for such rights.

3.4   No Other ENTREMED Rights. Except as otherwise expressly provided in this
      Agreement, ENTREMED agrees that it has not retained any rights under
      ENTREMED INTELLECTUAL PROPERTY to PRODUCTS, and that is shall not (i)
      make, use, offer to sell, sell, or import PRODUCTS in the TERRITORY, or
      (ii) collaborate, negotiate, or deal with THIRD PARTIES with respect to
      PRODUCTS.

3.5   Co-Promotion By CELGENE And ENTREMED.

      (a)   With Regard To PRODUCTS. If CELGENE, in its sole discretion, decides
            to co-promote any PRODUCT or to seek sales assistance in promoting
            any PRODUCT, including, but not limited to, sales assistance for
            indications not then promoted by CELGENE sales personnel, CELGENE
            shall, in good faith, consider ENTREMED for the opportunity to
            co-promote such PRODUCT(S) for such indications in the United
            States.

            (i)   CELGENE will give ENTREMED due consideration for the
                  opportunity to co-promote such PRODUCT(S) as set forth herein,
                  provided that ENTREMED has a sales force capable of providing
                  the required details to the targeted physician audience, or is
                  capable of assembling such a sales force within six (6)
                  months, and agrees to do so. If and only if ENTREMED either
                  has a sales force capable of providing the required details to
                  the targeted physician audience, or commits to assembling such
                  a sales force


                                      -17-
<PAGE>

                  within six (6) months, the decision to offer ENTREMED the
                  opportunity to co-promote such PRODUCT(s) for such indications
                  in the United States shall be made, in good faith, by CELGENE,
                  and CELGENE shall notify ENTREMED of its decision in writing.

            (ii)  If CELGENE offers ENTREMED the opportunity to co-promote,
                  pursuant to Section 3.5(a)(i) of this Agreement, ENTREMED
                  shall have thirty (30) days to accept such offer by written
                  notice to CELGENE. If ENTREMED accepts such offer to
                  co-promote PRODUCTS, then the parties will negotiate, in good
                  faith, a co-promotion agreement setting forth the substance of
                  this Section 3.5 and other normal and customary conditions
                  within six (6) months of CELGENE's receipt of ENTREMED's
                  acceptance pursuant to this Section 3.5(a)(ii).

            (iii) ENTREMED's co-promotion efforts will focus on detailing
                  (product presentations) the PRODUCT to the targeted physician
                  audience. In such case, ENTREMED's sales representatives will
                  also have the opportunity, from time to time, to participate
                  in seminars, in-service training, group presentations, and
                  other educational and promotional activities initiated by
                  CELGENE in consultations with ENTREMED. In addition, ENTREMED
                  will assign a product manager to participate with the CELGENE
                  marketing team to provide input as appropriate and to be the
                  operational liaison between CELGENE and ENTREMED's sales
                  force.

      (b)   With Regard To Anti-angiogenic Compounds. If ENTREMED, in its sole
            discretion, decides to co-promote an anti-angiogenic compound or a
            composition containing, as an active ingredient, such a compound, or
            to seek sales assistance in promoting any


                                      -18-
<PAGE>

            such anti-angiogenic compound or composition, including, but not
            limited to, sales assistance for indications not then promoted by
            ENTREMED sales personnel, ENTREMED shall, in good faith, consider
            CELGENE for the opportunity to co-promote such anti-angiogenic
            compounds and/or compositions. The decision to offer CELGENE the
            opportunity to co-promote such anti-angiogenic compounds and/or
            compositions shall be made in the sole discretion of ENTREMED, and
            be subject, mutatis mutandis, to the terms and conditions set forth
            in Sections 3.5(a)(ii) and (iii) of this Agreement.

3.6   Establishment Of A Scientific Committee. CELGENE agrees to conduct and
      fund a development program designed to obtain approval to market PRODUCTS,
      in accordance with its obligations under Section 3.1(a)(i) and 3.1(b) of
      this Agreement (the "PROGRAM"). To ensure the continued participation of
      ENTREMED in these development activities, the PROGRAM will be monitored by
      a Scientific Committee as described herein (the "COMMITTEE").

      (a)   Members. Within ten (10) days of the date hereof, ENTREMED and
            CELGENE shall each appoint two (2) persons to serve on the
            COMMITTEE. Each party will have the right to change its
            representation on the COMMITTEE upon written notice to the other.

      (b)   Chairperson. The COMMITTEE will be chaired by one representative of
            CELGENE, who shall be chosen in the sole discretion of CELGENE.

      (c)   Responsibilities. The COMMITTEE will have authority to:

            (i)   act in an advisory role and provide information, including
                  without limitation technical and regulatory information and

                                      -19-
<PAGE>

                  marketing and sales information, helpful in connection with
                  the PROGRAM;

            (ii)  make recommendations regarding the performance of the PROGRAM
                  and the conduct of the work pursuant thereto, and monitor
                  performance thereunder;

            (iii) propose modifications to the PROGRAM;

            (iv)  review any and all proposed publication(s) relating to the
                  PROGRAM and the results therefrom; and

            (v)   review all information and data resulting from the PROGRAM.

      (d)   Meetings. The COMMITTEE will meet not less than four (4) times a
            year during the term of the PROGRAM, at such dates and times as
            agreed to by the parties. The COMMITTEE will prepare written minutes
            of each meeting and a written record of all decisions whether made
            at a formal meeting or not. All decisions made and actions taken by
            the COMMITTEE will be made or taken in the sole discretion of
            CELGENE after good faith consideration of the position or opinion of
            the ENTREMED members.

      (e)   Term and Termination. The PROGRAM will continue until there are no
            longer any ongoing activities in pursuit of regulatory approval, or
            any pending applications for regulatory approval, for PRODUCTS,
            pursuant to Sections 3.1(a)(i) and (b) of this Agreement. Once all
            such activities have been completed and all such regulatory
            approvals have been obtained, CELGENE may, in its sole discretion,
            extend the term of the PROGRAM to include PRODUCTS in clinical
            trials for other uses, as set forth in Sections 3.1(a)(ii) and (b)
            of this Agreement, in which case the PROGRAM will continue until
            such clinical trials have been completed or otherwise terminated or,
            if applicable, until regulatory approval has


                                      -20-
<PAGE>

            been obtained, unless the PROGRAM is sooner terminated by CELGENE.


                              SECTION 4--ROYALTIES

4.1   Royalty Payments.

      (a)   First Twelve Years. CELGENE shall pay to ENTREMED the following
            royalties on the NET SALES of PRODUCTS sold by CELGENE or its
            AFFILIATES in each country of the TERRITORY (i) for the first
            consecutive twelve (12) years from the date of the FIRST COMMERCIAL
            SALE of a PRODUCT in each country of the TERRITORY, and, separately
            and independently, (ii) for the first consecutive twelve (12) years
            from the date of the FIRST COMMERCIAL SALE of each PRODUCT that
            contains, as a second active ingredient, a compound other than
            THALIDOMIDE, in each country of the TERRITORY:

            (i)   "..." of NET SALES up to "..." dollars of such sales;

            (ii)  "..." of NET SALES between "..." dollars and "..." dollars of
                  such sales;

            (iii) "..." of NET SALES between "..." and "..." dollars of such
                  sales; and

            (iv)  "..." of NET SALES over "..." dollars of such sales.

      (b)   After Twelve Years. For each PRODUCT in each country in the
            TERRITORY in which the twelve (12) year period provided for in
            Section 4.1(a) of this Agreement shall have terminated, CELGENE
            shall pay to ENTREMED the following royalties on the NET SALES of
            such PRODUCT covered by an ISSUED VALID CLAIM of the PATENT RIGHTS
            that are sold by CELGENE or its AFFILIATES in such country:

            (i)   "..." of NET SALES up to "..." dollars of such sales;

                                      -21-
<PAGE>


            (ii)  "..." of NET SALES between "..." dollars and "..." dollars of
                  such sales;

            (iii) "..." of NET SALES between "..." and "..." dollars of such
                  sales; and

            (iv)  "..." of NET SALES over "..." dollars of such sales;

            and such royalties under this Section 4.1(b) shall be payable until
            the last to expire PATENT RIGHT containing an ISSUED VALID CLAIM
            covering such PRODUCT sold by CELGENE or its AFFILIATES in such
            country.

4.2   Sublicensing Payments and Royalties.

      (a)   Under CELGENE's Rights. If CELGENE grants a sublicense of its
            exclusive rights under this Agreement, pursuant to Section 2.3 of
            this Agreement, in any country(ies) of the TERRITORY, CELGENE shall
            pay to ENTREMED (i) "..." of any non-royalty consideration,
            including but not limited to any sublicensing and/or milestone
            payments received by CELGENE pursuant to such sublicense and (ii)
            "..." of the royalty income paid by SUBLICENSEES to CELGENE on NET
            SALES of PRODUCTS.

      (b)   CELGENE-ENTREMED Cooperation. If CELGENE grants a sublicense of any
            of its rights under this Agreement in any area of the FIELD or any
            country of the TERRITORY with respect to which ENTREMED and CELGENE
            are cooperating pursuant to Sections 3.2 or 3.3 of this Agreement,
            CELGENE shall pay to ENTREMED "..." of any non-royalty
            consideration, including but not limited to any sublicensing and/or
            milestone payments received by CELGENE pursuant to such sublicense.
            CELGENE shall also pay to ENTREMED, as applicable, the following:
            (i) if CELGENE and ENTREMED are cooperating in any country(ies)
            pursuant to Section 3.2 of this Agreement, "..." of the royalty
            income paid by SUBLICENSEES to CELGENE on NET SALES, in such
            country(ies), of PRODUCTS; and (ii) if CELGENE and


                                      -22-
<PAGE>

            ENTREMED are cooperating in any country(ies) with regard to PRODUCTS
            for use in animals pursuant to Section 3.3 of this Agreement, "..."
            of the royalty income paid by SUBLICENSEES to CELGENE on NET SALES
            in such country(ies) of such PRODUCTS.

4.3   Later-Issued VALID CLAIM. In the event that there is no ISSUED VALID CLAIM
      of a PATENT RIGHT in a country within the TERRITORY on the date the twelve
      (12) year period provided for in Section 4.1(a) of this Agreement expires,
      no royalties shall be owed by CELGENE to ENTREMED under Sections 4.1(b)
      and 4.2 of this Agreement on PRODUCTS sold by CELGENE or its AFFILIATES in
      such country, provided, however, that if a VALID CLAIM of a PATENT RIGHT
      thereafter issues in such country, CELGENE shall pay ENTREMED royalties on
      the NET SALES in such country of PRODUCTS covered by an ISSUED VALID CLAIM
      of the PATENT RIGHTS that are sold by CELGENE or its AFFILIATES, according
      to the royalty rates set forth in Sections 4.1(b) and 4.2 of this
      Agreement, and such royalties under this Section 4.3 shall be payable
      until the last to expire PATENT RIGHT containing an ISSUED VALID CLAIM
      covering the PRODUCTS sold by CELGENE, its AFFILIATES or SUBLICENSEE in
      such country.

4.4   No Multiple Royalties.

      No multiple royalties shall be payable because any PRODUCT, its
      manufacture, use, importation, lease, or sale is or shall be covered by
      more than one PATENT RIGHT.

4.5   THIRD PARTY Sales. In any country where sales by a THIRD PARTY of a
      PRODUCT(s) for a similar dosage form and/or route of administration:

                                      -23-
<PAGE>

      (a)   are equal to or greater than "..." of the dollar market share for
            such PRODUCT in such country ("MARKET SHARE"), but less than "..."
            of the MARKET SHARE, then the royalty payable to ENTREMED pursuant
            to Sections 4.1 and 4.3 of this Agreement shall be reduced by "...";

      (b)   are equal to or greater than "..." of the MARKET SHARE, but less
            than "..." of the MARKET SHARE, then the royalty payable to ENTREMED
            pursuant to Sections 4.1 and 4.3 of this Agreement shall be reduced
            by "...";

      (c)   are equal to or greater than "..." of the MARKET SHARE, but less
            than "..." of the MARKET SHARE, then the royalty payable to ENTREMED
            pursuant to set Sections 4.1 and 4.3 of this Agreement shall be
            reduced by "..."; and

      (d)   are equal to or greater than "..." of the MARKET SHARE, then the
            royalty payable to ENTREMED pursuant to Sections 4.1 and 4.3 of this
            Agreement shall be reduced by "...";

      provided that royalties payable to ENTREMED shall never be reduced below
      "..." of NET SALES in each royalty bracket. For purposes of this Section
      4.5, oral dosage forms shall include, without limitation, all capsule,
      caplet, tablet, and liquid formulations for oral administration.

4.6   Recordkeeping. CELGENE shall keep, and shall cause each of its AFFILIATES
      and SUBLICENSEES to keep, full and accurate books of account containing
      all particulars relevant to its sales of PRODUCTS that may be necessary
      for the purpose of calculating all royalties payable to ENTREMED. 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 public accountant
      reasonably acceptable to CELGENE, upon reasonable notice


                                      -24-
<PAGE>

      during normal business hours at ENTREMED'S expense for the sole purpose of
      verifying royalty statements or compliance with this Agreement. In the
      event the inspection determines that royalties due ENTREMED for any period
      have been underpaid by five percent (5%) or more, then CELGENE shall pay
      for all costs of the inspection. In all cases, CELGENE shall pay to
      ENTREMED any underpaid royalties promptly and with interest at the prime
      rate available to ENTREMED from its bank plus two percent (2%). All
      information and data reviewed in the inspection shall be used only for the
      purpose of verifying royalties and shall be treated as CELGENE
      CONFIDENTIAL INFORMATION subject to the obligations of this Agreement. No
      audit by an agent of ENTREMED shall occur more frequently than once during
      any twelve (12) month period.

4.7   Quarterly Payments and Reports. In each year the amount of royalty due
      shall be calculated quarterly as of the end of each CALENDAR QUARTER and
      shall be paid quarterly within the forty-five (45) days next following
      such date. Every such payment shall be supported by the accounting
      described in Section 4.8 of this Agreement. All royalties due ENTREMED are
      payable in United States dollars. When PRODUCTS are sold for currency
      other than United States dollars, the earned royalties will first be
      determined in the foreign currency of the country in which such PRODUCTS
      were sold and then converted into equivalent United States funds. The
      exchange rate will be that rate quoted in the Wall Street Journal on the
      last business day of the CALENDAR QUARTER in which such sales were made.

4.8   Accounting Reports. With each quarterly payment, CELGENE shall deliver to
      ENTREMED a full and accurate accounting to include at least the following
      information:

                                      -25-
<PAGE>

      (a)   Quantity of PRODUCT subject to royalty sold, by country, by CELGENE,
            its AFFILIATES or SUBLICENSEES;

      (b)   Total receipts for each PRODUCT subject to royalty, by country and,
            to the extent used in any royalty calculations during such quarter,
            the exchange rate set forth in Section 4.7 of this Agreement;

      (c)   Compensation on PRODUCTS received from SUBLICENSEES pursuant to a
            sublicense of CELGENE's rights under this Agreement; and

      (c)   Total royalties and/or compensation payable to ENTREMED.


                           SECTION 5--CONFIDENTIALITY

5.1   Confidential Information. During the term of this Agreement, it is
      contemplated that each party may disclose to the other, proprietary and
      confidential technology, inventions, technical information, material,
      reagents, biological materials and the like which are owned or controlled
      by the party providing such information or which that party is obligated
      to maintain in confidence and which is designated by the party providing
      such information as confidential ("CONFIDENTIAL INFORMATION"). Each party
      agrees not to disclose the CONFIDENTIAL INFORMATION and to maintain the
      CONFIDENTIAL INFORMATION in strict confidence, to cause all of its agents,
      representatives and employees to maintain 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 not to use such CONFIDENTIAL
      INFORMATION for any purpose other than as provided under this Agreement.
      The secrecy obligations of the parties with respect to


                                      -26-
<PAGE>

      CONFIDENTIAL INFORMATION shall continue for a period ending ten (10) years
      from the termination of this Agreement.

5.2   Non-Confidential Information. The obligations of confidentiality will not
      apply to information that:

      (a)   was known to the receiving party or generally known to the public
            prior to its disclosure hereunder through no fault of the disclosing
            party or any agent, representative or employee thereof; or

      (b)   subsequently becomes known to the public by some means other than a
            breach of this Agreement, including publication and/or laying open
            to inspection of any patent applications or patents;

      (c)   is subsequently disclosed to the receiving party by a THIRD PARTY
            having a lawful right to make such disclosure and who is not under
            an obligation of confidentiality to the disclosing party;

      (d)   is required by law, rule, regulation or bona fide legal process to
            be disclosed, provided that the disclosing party takes all
            reasonable stem to restrict and maintain confidentiality of such
            disclosure and provides reasonable notice to the non-disclosing
            party; or

      (e)   is approved for release by the parties.

5.3   Disclosure To THIRD PARTIES. The obligations of Section 5.1
      notwithstanding, CELGENE or ENTREMED, as the case may be, may disclose the
      CONFIDENTIAL INFORMATION licensed hereunder to THIRD PARTIES

      (a)   who need to know the same in order to obtain regulatory approval for
            a PRODUCT under this Agreement, provided that the actions of such
            THIRD PARTY are not in conflict with CELGENE's rights under this
            Agreement,

                                      -27-
<PAGE>

      (b)   who need to know the same in order to work towards the commercial
            development of PRODUCT on behalf of CELGENE, or

      (c)   for whom the non-disclosing party, ENTREMED or CELGENE, as the case
            may be, has given prior written approval

      provided that such THIRD PARTIES are bound by obligations of
      confidentiality and non-use at least as stringent as those set forth
      herein.

5.4   Disclosure To Sublicensees. CELGENE may disclose ENTREMED's CONFIDENTIAL
      INFORMATION to a SUBLICENSEE without ENTREMED's approval, provided that
      such SUBLICENSEES are bound by obligations of confidentiality and non-use
      at least as stringent as those set forth herein.

5.5   Public Statements. Neither CELGENE nor ENTREMED may issue a public
      statement, including without limitation a press release, with regard to
      this Agreement without the prior written consent of the other party, which
      consent shall not be unreasonably withheld. In accordance with the rules
      and regulations promulgated by the Securities and Exchange Commission, the
      parties will request that this Agreement be treated as confidential.


                     SECTION 6--ADVERSE MEDICAL EXPERIENCES

6.1   Adverse Medical Experience Reporting. CELGENE shall comply fully with all
      applicable medical/adverse experience reporting requirements in all
      countries where CELGENE intends to carry out clinical trials and/or market
      PRODUCT.

                                      -28-
<PAGE>

                               SECTION 7--PATENTS

7.1   Patent Prosecution.

      (a)   ENTREMED shall use reasonable efforts to prepare, file, prosecute
            and maintain patent applications and patents directed to PATENT
            RIGHTS and PRODUCTS through patent counsel selected by ENTREMED and
            reasonably acceptable to CELGENE, who shall consult with and keep
            CELGENE advised with respect thereto.

      (b)   CELGENE shall reimburse ENTREMED for all reasonable costs and
            expenses incurred after the EFFECTIVE DATE for the filing,
            prosecution and maintenance of PATENT RIGHTS.

7.2   Cooperation In Prosecution.

      (a)   With respect to any PATENT RIGHTS, each patent application, office
            action, response to office action, request for terminal disclaimer,
            petition, and request for reissue or reexamination of any patent
            issuing from such application shall be provided to CELGENE
            sufficiently prior to the filing of such application, response,
            petition, or request to allow for review and comment by CELGENE.
            ENTREMED shall have the right to take any action that, in its
            judgement, is necessary to preserve such PATENT RIGHTS.

      (b)   Within a reasonable time from the EFFECTIVE DATE, CELGENE and
            ENTREMED will discuss each party's patent portfolio with regard to
            PRODUCTS, in accordance with prior obligations of confidentiality
            owed by each party to any THIRD PARTY, and will use reasonable
            efforts to coordinate their respective patent portfolio, to the
            extent possible, so as to maximize the patent protection for
            PRODUCTS.

                                      -29-
<PAGE>

7.3   Infringement and Declaratory Judgment Actions.

      (a)   Notification. In the event that either party learns of the
            infringement of any PATENT RIGHT, or the filing of a Declaratory
            Judgement action alleging the invalidity, unenforceability, or
            noninfringement of any PATENT RIGHT ("DJ ACTION"), that party must
            promptly notify the other party of the infringement or DJ ACTION, as
            the case may be, in writing, and must provide reasonable evidence of
            the infringement. Neither party will notify a THIRD PARTY of the
            infringement of any PATENT RIGHT or of the filing of a DJ ACTION
            directed to any PATENT RIGHT without first obtaining consent of the
            other party, which consent shall not be unreasonably withheld.

      (b)   CELGENE's Right To File Infringement Actions. To the extent ENTREMED
            has the right to bring a suit or action to compel the termination of
            infringement of the PATENT RIGHTS, including to the extent provided
            in Article 7 of the CMCC AGREEMENT, ENTREMED hereby grants CELGENE
            the right and option, but not the obligation, to bring an action for
            infringement or to defend against a DJ action, at its sole expense,
            in the name of ENTREMED and/or in the name of CELGENE, and to join
            ENTREMED as a party plaintiff if required. No settlement, consent
            judgment or other voluntary final disposition of a suit that
            adversely affects PATENT RIGHTS may be entered into without the
            consent of ENTREMED, which consent shall not be unreasonably
            withheld.

      (c)   CELGENE's Right To Defend DJ ACTIONS. In the event that a DJ ACTION
            is brought naming CELGENE as a defendant, CELGENE shall have the
            right to proceed with the litigation or settle such action provided,
            however, that no settlement, consent


                                      -30-
<PAGE>

            judgment or other voluntary final disposition of a suit that
            adversely affects PATENT RIGHTS may be entered into without the
            consent of ENTREMED, which consent shall not be unreasonably
            withheld.

      (d)   CELGENE's Recovery. In the event that CELGENE shall undertake the
            enforcement and/or defense of the PATENT RIGHTS by litigation, any
            recovery of damages by CELGENE for any such litigation shall be
            applied first in satisfaction of any unreimbursed expenses and legal
            fees of CELGENE relating to the suit. The balance remaining from any
            such recovery shall, after ENTREMED receives its royalties from lost
            sales, belong to CELGENE.

      (e)   ENTREMED's Right To Litigate. In the event that CELGENE elects not
            to pursue an action for infringement or to defend against a DJ
            action, as the case may be, CELGENE shall notify ENTREMED in writing
            of such election and ENTREMED shall have the right and option, but
            not the obligation, at its cost and expense, to initiate
            infringement litigation and to retain any recovered damages.

      (f)   Cooperation. In any infringement suit either party may institute to
            enforce or defend the PATENT RIGHTS pursuant to this Agreement, the
            other party hereto shall, at the request of the party initiating
            such suit, cooperate in all respects and, to the extent possible,
            have its employees testify when requested and make available
            relevant records, papers, information, samples, specimens, and the
            like. All reasonable out-of-pocket costs incurred in connection with
            rendering cooperation requested hereunder shall be paid by the party
            requesting cooperation.

                                      -31-
<PAGE>

      (g)   THIRD PARTY Royalty Reduction. In the event that an infringement
            action is brought by a THIRD PARTY against CELGENE alleging that
            CELGENE's making, using, offering to sell, selling, or importing of
            PRODUCTS under the PATENT RIGHTS infringes a THIRD PARTY patent, and
            results in a judgment or settlement requiring royalties to be paid
            by CELGENE to such THIRD PARTY, the royalties owed by CELGENE to
            ENTREMED under Section 4 of this Agreement shall be reduced by an
            amount equal to "..." of the royalties owed to such THIRD PARTY,
            provided that the royalties owed to ENTREMED shall not be reduced
            under this Section 7.3(f) to less than "..." of NET SALES, nor shall
            any specific royalty payment be reduced under this Section 7.3(g) by
            more than "...".


                   SECTION 8--REPRESENTATIONS AND WARRANTIES.

8.1   By Both Parties. Each party hereby represents and warrants that each has
      the full right and authority to enter into this Agreement and that the
      entry into this Agreement does not require the consent of a THIRD PARTY
      whose consent has not been obtained.

8.2   By ENTREMED. ENTREMED represents and warrants as follows:

      (a)   that ENTREMED has not received any notice of infringement of THIRD
            PARTY patents or notice of interfering subject matter; that, without
            having made any special investigation, ENTREMED is not aware of any
            THIRD PARTY patents or patent applications that contain any
            interfering subject matter, or any issued THIRD PARTY patents that
            would be infringed by the making, using, selling, offering for sale,
            or importing by CELGENE of PRODUCTS covered by the ENTREMED EXISTING
            PATENT RIGHTS or the ENTREMED EXISTING TECHNOLOGY RIGHTS in any
            country in the TERRITORY, or by the exercise by


                                      -32-
<PAGE>

            CELGENE of any right granted to it under this Agreement, aside from
            those set forth in Appendix D;

      (b)   that the PATENT RIGHTS set forth in Appendix A and the TECHNOLOGY
            RIGHTS transferred to CELGENE under this Agreement, constitute the
            entirety of ENTREMED EXISTING PATENT RIGHTS and ENTREMED EXISTING
            TECHNOLOGY RIGHTS;

      (c)   that ENTREMED presently has no rights in PRODUCTS, nor any option in
            or expectation of any rights in PRODUCTS, apart from those
            identified in this Agreement and set forth in the agreements listed
            in Appendix B, and that ENTREMED is not in material breach or
            default of any of the agreements set forth in Appendix B, and that
            if ENTREMED acquires any such rights after the EFFECTIVE DATE, the
            agreements setting forth those rights, including all licenses and
            assignments for ENTREMED DEVELOPED PATENT RIGHTS and ENTREMED
            DEVELOPED TECHNOLOGY RIGHTS, shall be redacted to the extent they do
            not relate to CELGENE's rights under this Agreement, and attached
            hereto as independent Exhibits and incorporated herein;

      (d)   that, with regard to PRODUCTS, ENTREMED has no applications filed or
            pending with the FDA as of the EFFECTIVE DATE, including without
            limitation any Investigational New Drug or Orphan Drug Status
            applications, apart from those set forth in Appendix C;

      (e)   that ENTREMED will comply with all obligations and duties with
            regard to PRODUCTS under the CMCC AGREEMENT and, unless and until it
            is assigned to CELGENE pursuant to Section 2.5 of this Agreement,
            the NCI AGREEMENT, including, without


                                      -33-
<PAGE>

            limitation, any notification provisions necessary to maintain in
            effect this Agreement or preserve CELGENE's exclusive or
            non-exclusive rights under this Agreement, including without
            limitation the preservation of CELGENE's rights hereunder in the
            event that ENTREMED shall breach or default on its obligations under
            the CMCC AGREEMENT or the NCI AGREEMENT;

      (f)   that ENTREMED understands and agrees that it has not retained any
            rights under the ENTREMED INTELLECTUAL PROPERTY to PRODUCTS in the
            TERRITORY, and that the licenses and assignments granted in Sections
            2.1, 2.2, 2.4, and 2.5 of this Agreement are exclusive of any
            continuing right of ENTREMED, except as otherwise provided herein;
            and

      (g)   that ENTREMED will not collaborate, negotiate, or deal with THIRD
            PARTIES with respect to PRODUCTS, except as expressly provided
            herein.

8.3   EXCEPT AS OTHERWISE EXPRESSLY SET FORTH HEREIN, ENTREMED MAKES NO
      REPRESENTATIONS OR EXTENDS ANY WARRANTIES OF ANY KIND EITHER EXPRESS OR
      IMPLIED, INCLUDING, BUT NOT LIMITED TO, WARRANTIES OF MERCHANTABILITY,
      FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT OR VALIDITY OF ANY
      ENTREMED PATENT OR OTHER INTELLECTUAL PROPERTY RIGHTS.


                    SECTION 9--INDEMNIFICATION AND INSURANCE

9.1   By CELGENE. CELGENE will defend, indemnify and hold harmless ENTREMED, its
      successors, AFFILIATES and licensors and their employees, agents,
      officers, trustees, shareholders and directors and each of them (the
      "ENTREMED Indemnified Parties") from and against any and all THIRD PARTY
      claims, causes of action and costs (including


                                      -34-
<PAGE>

      reasonable attorney's fees) of any nature made or lawsuits or other
      proceedings filed or otherwise instituted against the ENTREMED Indemnified
      Parties in connection with any claims, suits or judgments arising out of
      any theory of product liability concerning the development, testing,
      manufacture, sale or use of any PRODUCT by CELGENE, its AFFILIATES or its
      SUBLICENSEES.

      9.1.1 CELGENE's indemnification under this Section 9.1 shall not apply to
            any liability, damage, loss or expense to the extent that it is
            directly attributable to the negligent activity, reckless misconduct
            or intentional misconduct of ENTREMED.

      9.1.2 Commencing not later than the date of FIRST COMMERCIAL SALE of a
            PRODUCT, CELGENE shall obtain and carry in full force and effect
            product liability insurance against any claims, judgments,
            liabilities and expenses for which it is obligated to indemnify
            ENTREMED and others under Section 9.1 of this Agreement, in such
            amounts and with such deductibles as are customary at the time for
            companies engaged in a similar business, and shall provide ENTREMED
            with written evidence of such insurance upon request.

9.2   By ENTREMED. ENTREMED will defend, indemnify and hold harmless CELGENE,
      its successors, AFFILIATES and licensors and their employees, agents,
      officers, trustees, shareholders and directors and each of them (the
      "CELGENE Indemnified Parties") from and against any and all THIRD PARTY
      claims, causes of action and costs (including reasonable attorney's fees)
      of any nature made or lawsuits or other proceedings filed or otherwise
      instituted against the CELGENE Indemnified Parties in connection with any
      claims, suits or judgments arising out of any theory of product liability
      concerning the development,


                                      -35-
<PAGE>

      testing, manufacture, sale or use of any PRODUCT by ENTREMED, its
      AFFILIATES or its SUBLICENSEES prior to the EFFECTIVE DATE.

      9.2.1 ENTREMED's represents and warrants that it presently carries, in
            full force and effect, and will continue to carry, product liability
            insurance against any claims, judgments, liabilities and expenses
            incurred in connection with the use of THALIDOMIDE in clinical
            trials by or on behalf of ENTREMED, and shall provide CELGENE with
            written evidence of such insurance upon request.

9.3   Conditions to Indemnification. A person or entity that intends to claim
      indemnification under this Section 9 (the "Indemnitee") shall promptly
      notify the party from whom indemnification is sought (the "Indemnitor"),
      of any loss, claim, damage, liability or action in respect of which the
      Indemnitee intends to claim such indemnification, and the Indemnitor shall
      assume the defense thereof with counsel mutually satisfactory to the
      Indemnitee whether or not such claim is rightfully brought; provided,
      however, that an Indemnitee shall have the right to retain its own
      counsel, with the fees and expenses to be paid by the Indemnitor if
      Indemnitor does not assume the defense, or if representation of such
      Indemnitee by the counsel retained by the Indemnitor would be
      inappropriate due to actual or potential differing interests between such
      Indemnitee and any other person represented by such counsel in such
      proceedings. 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 9, but
      the omission so to deliver notice to the Indemnitor will not relieve it of
      any liability that it may have to any Indemnitee otherwise than under this
      Section 9. The Indemnitee under this Section 9, its employees and agents,
      shall cooperate fully with the Indemnitor and its legal


                                      -36-
<PAGE>

      representatives in the investigations of any action, claim or liability
      covered by this indemnification.


                     SECTION 10--ASSIGNMENT AND SUCCESSORS

10.1  By Either Party. This Agreement shall not be assignable by either party
      without the written consent of the other party, except that either party
      may assign this Agreement to an AFFILIATE, successor in interest or
      transferee of all or substantially all of the portion of the business to
      which this Agreement relates without the consent of the other party.

10.2  By CELGENE. If CELGENE assigns or licenses its rights under this Agreement
      to a SUBLICENSEE or an AFFILIATE, such SUBLICENSEE or AFFILIATE shall be
      bound by the terms and conditions of this Agreement. CELGENE shall advise
      ENTREMED of any such assignment or license and provide ENTREMED with a
      copy of any sublicense within thirty (30) days of execution of such
      sublicense.

10.3  CELGENE As Guarantor. CELGENE shall guarantee and be responsible for the
      payment of all royalties due and the making of reports under this
      Agreement by reason of the development and sales of any PRODUCTS by
      CELGENE, its AFFILIATES and SUBLICENSEES and their compliance with all
      applicable terms of this Agreement. Performance or satisfaction of any
      obligations of CELGENE under this Agreement by any of its AFFILIATES or
      SUBLICENSEES shall be deemed performance or satisfaction of such
      obligation by CELGENE.

10.4  Binding Effect. This agreement shall be binding upon and inure to the
      benefit of said successors in interest and assignees to the parties. Any
      such successor or assignee of a party's interest shall expressly assume in
      writing the performance of all the terms and conditions of this Agreement
      to be performed by said party and such Assignment shall not relieve the
      Assignor of any of its obligations under this Agreement.

                                      -37-
<PAGE>

                           SECTION 11--FORCE MAJEURE

11.1  Neither party shall be liable to the other party for damages or loss
      occasioned by failure of performance by the defaulting party if the
      failure is occasioned by war, fire, explosion, flood, strike or lockout,
      embargo, or any similar cause beyond the control of the defaulting party,
      provided that the party claiming this exception has exerted all reasonable
      efforts to avoid or remedy such event and provided such event does not
      extend for more than six (6) months.


                            SECTION 12--TERMINATION

12.1  Term. Unless earlier terminated as hereinafter provided, this Agreement
      shall remain in full force and effect until CELGENE's obligations to pay
      royalties or other compensation under Section 4 of this Agreement, either
      directly or pursuant to a sublicense, terminate.

12.2  By Reason Of FDA Action. If the FDA withdraws or recalls THALIDOMIDE from
      the market permanently, or in any other way revokes or terminates
      CELGENE's regulatory approval to market and sell THALIDOMIDE and/or
      PRODUCTS, CELGENE shall promptly notify ENTREMED in writing, and this
      Agreement and all of CELGENE's and ENTREMED's rights and obligations
      hereunder shall terminate upon receipt by ENTREMED of such notice.

12.3  Termination Of Royalty Obligations. Upon termination of CELGENE's
      obligation to pay royalties and other compensation hereunder with respect
      to a specific country and specific PRODUCT as to which CELGENE's license
      is then in effect, the license granted to CELGENE with respect to such
      country and such PRODUCT pursuant to Section 2 shall be deemed to be fully
      paid and CELGENE shall thereafter have a royalty free, exclusive right to
      use the PATENT RIGHTS to make, have made, use, offer to sell, sell and
      import such PRODUCT in such country.

                                      -38-
<PAGE>

12.4  Breach.

      (a)   By Either Party. This Agreement shall be terminable upon the
            material breach or default of either party. In the event of a
            material breach or default by a party ("Defaulting Party"), the
            other party ("Non-Defaulting Party") shall give the Defaulting Party
            written notice of the default. The Defaulting Party will then have
            sixty (60) days to cure the breach. If cure has not been affected
            within said sixty (60) days, the Non-Defaulting Party shall have the
            right to terminate this Agreement.

      (b)   By CELGENE.

            (i)   Payments. If and only if CELGENE materially breaches this
                  Agreement by failure to pay royalties and/or sublicensing or
                  milestone payments due under Section 4 of this Agreement, and
                  fails to cure such material breach within sixty (60) days of
                  receiving written notice thereof pursuant to Section 12.4(a)
                  of this Agreement then:

                  a)    CELGENE's rights under this Agreement to ENTREMED
                        INTELLECTUAL PROPERTY shall terminate; and
            
                  b)    CELGENE shall grant to ENTREMED, to the extent not
                        prohibited by the United States Government or by prior
                        contractual obligations to any THIRD PARTY, an
                        exclusive, worldwide, royalty-free license, with the
                        right to sublicense, under CELGENE DEVELOPED
                        INTELLECTUAL PROPERTY to make, use, offer to sell, sell,
                        and import PRODUCTS in the TERRITORY.

            (ii)  Diligence. If and only if ENTREMED exercises its right and
                  option to terminate the license granted to CELGENE in


                                      -39-
<PAGE>

                  the entire TERRITORY, pursuant to Section 3.1(f) of this
                  Agreement, or ENTREMED exercises its right and option to
                  terminate the license granted to CELGENE in Europe, Canada, or
                  the PACIFIC RIM, pursuant to Section 3.2(c)(i) of this
                  Agreement, then, either in the entire TERRITORY or in the
                  region in which such termination has occurred, i.e., Europe,
                  Canada, or the PACIFIC RIM, as applicable:

                  a)    CELGENE's rights under this Agreement to ENTREMED
                        INTELLECTUAL PROPERTY shall terminate; and

                  b)    CELGENE shall grant to ENTREMED, to the extent not
                        prohibited by the United States Government or by prior
                        contractual obligations to any THIRD PARTY, an
                        exclusive, worldwide, royalty-free license, with the
                        right to sublicense, under CELGENE DEVELOPED
                        INTELLECTUAL PROPERTY to make, use, offer to sell, sell,
                        and import PRODUCTS.

            The grant of rights by CELGENE to ENTREMED under this Section 12.4
            expressly excludes rights in any CELGENE EXISTING INTELLECTUAL
            PROPERTY.

      (c)   Termination under this Section 12.4 will be effective upon the date
            specified in the written notice. All termination rights shall be in
            addition to and not in substitution for any other remedies that may
            be available to the Non-Defaulting Party. Termination pursuant to
            this Section 12.4 shall not relieve the Defaulting Party from
            liability and damages to the Non-Defaulting Party for default.
            Waiver by either party of a single default or a succession of
            defaults shall not deprive such party of any right to terminate or
            convert this Agreement arising by reason of any subsequent default.

                                      -40-
<PAGE>

12.5  Insolvency. Either party to this Agreement may terminate this Agreement
      upon receipt of notice that the other party has become insolvent or has
      suspended business in all material respects hereof, or has consented to an
      involuntary petition purporting to be pursuant to any reorganization or
      insolvency law of any jurisdiction, or has made an assignment for the
      benefit of creditors or has applied for or consented to the appointment of
      a receiver or trustee for a substantial part of its property, by giving
      written notice to the other party, and termination of this Agreement will
      be effective upon receipt of such notice.

12.6  Work-In-Progress. Upon termination of this Agreement, CELGENE shall be
      entitled to, but shall not be obligated to finish any work-in-progress at
      the time of termination and sell the same as well as all completed
      inventory of PRODUCTS which remains on hand as of the date of the
      termination, so long as CELGENE pays to ENTREMED the royalties applicable
      to said subsequent sales in accordance with the same terms and conditions
      as set forth in this Agreement.

12.7  Survival. The obligations of Sections 5 and 9, as well as Sections 12.6,
      12.7, 12.8, and 13.3, shall survive any termination of this Agreement.

12.8  Reversion of Rights. Upon termination of this Agreement or of the rights
      and licenses granted to CELGENE in any country of the TERRITORY, CELGENE
      agrees not to use the TECHNOLOGY RIGHTS or PATENT RIGHTS or information or
      technology derived therefrom for the manufacture, use or sale of PRODUCTS
      in any country other than those countries in which CELGENE retains a
      license under this Agreement. In addition, all rights to the TECHNOLOGY
      RIGHTS and PATENT RIGHTS in such country shall revert to ENTREMED and may
      be used by ENTREMED without restriction in any country other than those
      countries in which CELGENE retains a license under this Agreement.

                                      -41-
<PAGE>


                         SECTION 13--GENERAL PROVISIONS

13.1  Relationship of Parties. The relationship between ENTREMED and CELGENE is
      that of independent contractors. ENTREMED and CELGENE are not joint
      venturers, partners, principal and agent, master and servant, employer or
      employee, and have no relationship other than as independent contracting
      parties. ENTREMED shall have no power to bind or obligate CELGENE in any
      manner. Likewise, CELGENE shall have no power to bind or obligate ENTREMED
      in any manner.

13.2  Entire Understanding. This Agreement sets 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 these Agreements, except by a written
      document which is signed by both parties.

13.3  Governing Law. This Agreement shall be construed and enforced in
      accordance with the laws of the State of Delaware, U.S.A. without
      reference to its choice of law principles.

13.4  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 or section or
      paragraph.

13.5  No 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.

13.6  Export Controls. In conducting any activities under this Agreement or in
      connection with the manufacture use or sale of PRODUCT, CELGENE shall
      comply with all applicable laws and regulations including, but not


                                      -42-
<PAGE>

      limited to, all Export Administration Regulations of the United States
      Department of Commerce.

13.7  Notices. Any notices given pursuant to this Agreement shall be in writing
      and shall be deemed delivered upon the earlier of (i) when received at the
      address set forth below, or (ii) three (3) business days after mailed by
      certified or registered mail postage prepaid and properly addressed, with
      return receipt requested, or (iii) when sent, if sent by facsimile, as
      confirmed by certified or registered mail. Notices shall be delivered to
      the respective parties as indicated below:

      If To ENTREMED        EntreMed, Inc.
                            9610 Medical Center Drive
                            Rockville, MD 20850
                            Attn:  CEO
                            Fax:  (301) 217-9594

      If To CELGENE:        Celgene Corporation
                            6 Powder Horn Drive
                            Warren, NJ 07059
                            Attn:  President
                            Fax:  (732) 805-3931

13.8  Original Counterparts. This Agreement may be executed in any number of
      separate counterpart, each of which shall be deemed to be an original, but
      which together shall constitute one and the same instrument.

                                      -43-
<PAGE>


      IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date set forth above.

ENTREMED, INC.                            CELGENE CORPORATION


By:    /s/  Edward R. Gubish              By:    /s/  John W. Jackson
      -----------------------                   ----------------------

Name:  Edward R. Gubish                   Name:  John W. Jackson      
      -----------------------                   ----------------------

Title: Sr. V.P. R & D                     Title: Chairman & CEO      
      -----------------------                   ----------------------


                                      -44-
<PAGE>


                                   APPENDIX A
                                   ----------

United States Patent No. 5,629,327
United States Patent No. 5,593,990
United States Patent Application Serial No. 08/025,046
United States Patent Application Serial No. 08/168,817
United States Patent Application Serial No. 08/371,987
United States Patent Application Serial No. 08/468,792
United States Patent Application Serial No. 08/918,610
United States Patent Application Serial No. 08/955,638
United States Patent Provisional Application Serial No. 60/028,708
United States Patent Application Serial No. 08/963,058
United States Patent Application Serial No. 09/107,578
United States Patent Application Serial No. 09/126,542


                                      -45-
<PAGE>

                                   APPENDIX B
                                   ----------

1.    That certain License Agreement entered into by and between ENTREMED and
      Children's Medical Center Corporation ("CMCC"), dated May 26, 1994, as
      amended to the date hereof, attached as Exhibit A to this Agreement.

2.    That certain Agreement by and between the Division of Cancer Treatment at
      the National Cancer Institute ("NCI") and ENTREMED, dated November 16,
      1994, and executed on behalf of ENTREMED on November 23, 1994, and on
      behalf of NCI on November 18, 1994, attached as Exhibit C to this
      Agreement.


                                      -46-
<PAGE>

                                   APPENDIX C
                                   ----------


Orphan Drug Designation Application (ODA) 97-1011     Primary Brain Malignancies
Orphan Drug Designation Application (ODA) 98-1149     Kaposis Sarcoma
Orphan Drug Designation Application (ODA) 98-1143     Prostate Cancer

Investigational New Drug Application 46,591           Ophthalmology
Investigational New Drug Application 55,966           Oncology


                                      -47-
<PAGE>

                                   APPENDIX D
                                   ----------

United States Patent No. 5,605,684 to Piacquadio
United States Patent No. 5,443,824 to Piacquadio
United States Patent No. 5,731,325 to Andrulis, Jr. et al.
United States Patent No. 5,654,312 to Andrulis, Jr. et al.
United States Patent No. 5,643,915 to Andrulis, Jr. et al.
United States Patent No. 5,434,170 to Andrulis, Jr.


                                      -48-
<PAGE>


                                    EXHIBIT A
                                 CMCC AGREEMENT




                                      -49-
<PAGE>


                                    EXHIBIT B
                                  NCI AGREEMENT


                                      -50-
<PAGE>


                                    EXHIBIT C
                      LETTER TO FDA INDICATING TRANSFER OF
                       RIGHTS IN INVESTIGATIONAL NEW DRUG
                   AND ORPHAN DRUG APPLICATIONS TO CELGENE


                                      -51-


© 2022 IncJournal is not affiliated with or endorsed by the U.S. Securities and Exchange Commission