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EXHIBIT 10.55   ***Text Omitted and Filed SeparatelyConfidential Treatment
RequestedUnder 17 C.F.R. §§ 200.80(b)(4)
and240.24b-2(b)(1)
 MEMORANDUM OF AGREEMENT
 BY AND BETWEEN THE UNDERSIGNED :
  AND:
  RECITALS :
 1.
    
    Whereas IDM is a biotechnology company incorporated in 1993 that, since inception,
has developed a Know-how and expertise in the field of immunotherapy, and particularly in
the field of ex vivo cancer treatments in humans.2.
    
    Whereas SANOFI-SYNTHELABO is a pharmaceutical company that develops, manufactures
and/or markets pharmaceutical products in the field of human health on a worldwide basis.3.
    
    Whereas IDM and SANOFI-SYNTHELABO signed an agreement on July 13, 1999 defining the
terms and conditions under which SANOFI-SYNTHELABO granted IDM a license to its industrial
property rights relative to the IL-13 cytokine, in return for SANOFI-SYNTHELABOs taking a
stake in IDMs capital and receiving a commercialization option in the event developments
undertaken by IDM under this license are successful.4.
    
    Whereas IDM and SANOFI-SYNTHELABO have expressed their desire to strengthen their
collaboration in the field of ex vivo cellular therapies for humans and have agreed to
such strengthening in the form of a right of first refusal for SANOFI-SYNTHELABO to all
IDM development programs in the field of ex vivo cellular therapies for humans on the
terms and conditions defined in this Memorandum of Agreement.5.
    
    Whereas IDM and SANOFI-SYNTHELABO also decided as part of the redefinition of the
modalities of their collaboration, and as a condition to such
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collaboration, to amend the terms of the 1999 Agreements as defined below, on the terms
and conditions also defined in this Memorandum of Agreement.
 NOW, THEREFORE, THE PARTIES MUTUALLY AGREE AS FOLLOWS:
 ARTICLE 1  DEFINITIONS
  1.1
    
    1999 Agreements shall mean the memorandum of agreement signed by the Parties on July
13, 1999, including all annexes to said Memorandum and, in particular, the Contribution
Agreement, the License Agreement and its Amendment (as these terms are defined in such
agreements)1.2
    
    Affiliate shall mean any entity controlled by a Party, controlling that Party or
under the same control as that Party, in each case either directly or indirectly. For the
needs of this definition, control means the holding (directly or indirectly through an
Affiliate) of more than 50% of the capital or voting rights of a company. The status of an
Affiliate is determined as of the date on which this definition needs to be used.1.3
    
    Antibody shall mean a molecule that is used to arm macrophages, not including
molecules that may be used for the maturation or activation of dendritic cells.1.4
    
    Marketing Authorization shall mean the official authorization to market a Product,
issued by the competent Health Authority in each country of the Territory or each Group of
Countries of the Territory based on the basis of the Applications.1.5
    
    Health Authority shall mean, for each Country or each Group of Countries in the
Territory, the competent administrative body granting Marketing Authorizations in the said
Country.1.6
    
    Patent(s) shall mean any patent application and/or patent that may be applied for and
obtained in the Territory by IDM pertaining to any patentable result developed in the course
of any one of the Development Programs carried out in application of this Memorandum of
Agreement, as well as any patent application and/or patent held by IDM in the Territory and/or
which it has free access to either before or after the date of signature of this Memorandum of
Agreement and that would be necessary for the exploitation of the results of any one of these
Development Programs. The term Patent(s) includes any application for a division, an
application for a continuation, an application for a continuation in part, an application
for an extension and an application for a re-issuance covering the said Patents, and in
particular, any Supplemental Certificate of Protection relative to the Patent(s).1.7
    
    License and Supply Contract shall mean the license and supply contract to be entered
into by IDM and SANOFI-SYNTHELABO pursuant to the provisions of Article 6.3(b) below, in the
event of the exercise of the Option for Exclusive License by SANOFI-SYNTHELABO.
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1.8
    
    Effective Date shall mean the date on which this Memorandum of Agreement shall take
effect in accordance with provisions of Article 10.1 below.1.9
    
    Application(s)shall mean all the documentation necessary to file an application for
a Marketing Authorization with the competent Health Authorities in each Country.1.10
    
    Phase I Study shall mean, within the context of a Development Program, all tolerance
studies of a Product as well as any pharmacodynamic study relative to said Product conducted
by IDM in treated patients.1.11
    
    Phase II Study shall mean, within the context of a Development Program, all studies
conducted by IDM to demonstrate clinical activity of the Product in treated patients.1.12
    
    Phase III Studyshall mean, within the context of a Development Program, all studies
conducted by IDM to confirm the efficacy and evaluate the long-term tolerance of a Product in
order to obtain the Marketing Authorization for the said Product in the Countries.1.13
    
    Development Offer shall mean the offer that IDM must make to SANOFI-SYNTHELABO
pursuant to the provisions of Article 3.2 below in order to enable the later to exercise, or
not, its right for a Development Option.1.14
    
    Development Option shall mean SANOFI-SYNTHELABOs irrevocable option under Article
III of this Memorandum of Agreement guaranteeing it, in the event it exercises its option on a
given Development Offer, the exclusive benefit of the results of the corresponding Development
Program in return for its financing of the costs and expenses relative to said Development
Program.1.15
    
    Exclusive License Option shall mean SANOFI-SYNTHELABOs irrevocable option under
Article V of this Memorandum of Agreement guaranteeing, in the event it exercises its option
on the Final Results of the Development, an exclusive worldwide license for the results of the
corresponding Development Program.1.16
    
    Partiesshall mean SANOFI-SYNTHELABO and IDM collectively (each of the Parties being
individually designated as a Party).1.17
    
    Countryshall mean any country located in the Territory.1.18
    
    Product shall mean a joint collection of a minimum of [. . . *** . . .]
elements and a maximum of [. . . *** . . .] elements.
 (a)
    
    [. . . *** . . .](b)
    
    [. . . *** . . .]
 *Confidential Treatment Requested   under
17 C.F.R. §§ 200.80(b)(4) and   240.24b-2(b)(1)
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1.19
    
    Final Product shall mean a sequence of stages as defined below:
 [. . . *** . . .][. . . *** . . .][. . . *** . . .][. . . *** . . .][. . . *** . . .][. . . *** . . .][. . . *** . . .][. . . *** . . .]Any new stage that may be added to this definition in the future, subject to
relevant evolution of science and technology, between the initial sampling step and
the injection of the Final Product into the treated patient, is also an integral
part of the Final Product.
 1.20
    
    Development Program shall mean, for a given Product in a specified therapeutic
indication, all pre-clinical and clinical studies conducted or to be conducted by IDM and
necessary for the preparation of applications for Marketing Authorizations in the Countries of
the Territory.1.21
    
    Industrial Property of the Productshall mean collectively the Patents, Know-How, as
well as any intellectual property right that might be held by IDM, either before or subsequent
to the date of signature of this Memorandum of Agreement, or of which it might have free
disposal, and that would be necessary to exploit the results of any one of the Development
Programs and, in particular, (i) all copyrights relative to computer software and/or (ii) cell
lines, antigens and/or Antibodies necessary to implement the Development Programs.
 *
    Confidential Treatment Requestedunder
17 C.F.R. §§ 200.80(b)(4) and240.24b-2(b)(1)
 4




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1.22
    
    Permanent Development Resultsshall mean all data, information and results
obtained by IDM upon completion of a Development Program. These results will be assembled
and presented by IDM in accordance with Good International Clinical Practices (ICH).1.23
    
    Know-How shall mean all knowledge, processes, techniques and scientific information
resulting from any of the Development Programs carried out in application of this Memorandum
of Agreement, or that might be owned by IDM either before or subsequent to the date of
signature of this Memorandum of Agreement and/or of which IDM would have free disposal, and
that would be necessary in connection with the development, manufacture, marketing and/or
utilization of a Product. Know-How includes in particular all knowledge of any kind contained
in the Applications.1.24
    
    Territory shall mean all the Countries in the World.1.25
    
    Third partyshall mean any individual or any legal entity except the Parties and
their Affiliates.1.26
    
    European Union shall mean any member Country of the European Union on the date of
signature of this Memorandum of Agreement, as well as any other Country that might become a
member of the European Union during the entire life of this Memorandum of Agreement.
 ARTICLE II  PURPOSE
 2.1
    
    The purpose of this Memorandum of Agreement is to define the terms and conditions under which
IDM grants to SANOFI-SYNTHELABO, on a priority basis with respect to any Third Party, (i) a
specified number of options to Development Programs undertaken by IDM, guaranteeing
SANOFI-SYNTHELABO, in the event it exercises a specified option, the exclusive benefit of the
results of the corresponding Development Program, and (ii) at completion of each Development
Program for which SANOFI-SYNTHELABO has exercised this option, an option for an exclusive
worldwide license for the results of said Development Program.2.2
    
    This Memorandum of Agreement shall be binding between the Parties. It is understood,
however, that the Parties shall use their best efforts to formalize in an application
agreement (the Final Agreement) within four (4) months of the Effective Date of this
Memorandum of Agreement, certain detailed application procedures for the application of this
Memorandum of Agreement, but that the formal signing of this Final Agreement is not considered
by the Parties as a precondition for their mutual acceptance of the provisions of this
Memorandum of Agreement.Consequently, failure to sign to Final Agreement within the above-mentioned period of four
(4) months shall in no way affect the binding nature of the provisions of this Memorandum
of Agreement, which shall be deemed, for all effects and purposes, to constitute the Final
Agreement referred to above.
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The provisions of this Article 2.2 shall apply, mutatis mutandis, to the formalization of
the License and Supply Agreement referred to in Article 6.3 (b) below and the Amendment
to the 1999 Agreements referred to in Article 8 below.
 ARTICLE III  DEVELOPMENT OPTION
 3.1
    
    As of the Effective Date of this Memorandum of Agreement and for a period of ten (10) years
following said Effective Date, IDM shall offer to SANOFI-SYNTHELABO, on a priority basis with
respect to any Third Party, and on the terms and conditions defined in this Article III, all
Products that IDM plans to develop as Project Manager.IDM will be considered as Project Manager of any Product for which it controls directly
or indirectly (and therefore either as owner or licensee) the industrial property rights
and Know-how necessary for its development, manufacturing and unrestricted marketing.3.2
    
    In order to validly trigger SANOFI-SYNTHELABOs Development Option pursuant to the provisions
of this Article III, the Development Offer shall mandatorily and cumulatively comply with
three provisions defined in paragraphs (a) to (c) below:
 (a)
    
    The Development Option shall establish, in a reasonably documented manner,
(i) the in vitro proof of concept of the Product, including a demonstration of the
induction of a specific immune response to the relevant antigen or Antibody in a
specified therapeutic indication, and (ii) the in vivo safety data of the Product in
the first six (6) treated patients.(b)
    
    The Development Offer shall include a draft Development Program (including an
implementation timetable and a budget estimate) prepared and submitted to the
Executive Committee by the Development Committee based on data gathered by the
Research Committee and approved by the Executive Committee, for the therapeutic
indication for which the proof of concept referred to above has been established.(c)
    
    The Industrial Property of the Product included in the Development Offer
and/or its future exploitation, shall not be subject to and/or shall not be
subordinated in any manner whatsoever to, any Third Party rights which existence could
have a significant negative impact on the economic potential of the Product for
SANOFI-SYNTHELABO in the event of the exercise by the latter of its Option for
Exclusive License. The Development Offer shall confirm the absence of such Third
Party rights and, more generally, shall identify the Third Party rights whose
existence could have a negative or positive impact on the economic potential of the
Product.Annex 3.2 (c) identifies all third party rights affecting the Industrial Property
of the Products currently undergoing development by IDM. IDM guarantees its
accuracy.
 6




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3.3
    
    IDM shall be free to grant one or more licenses for the industrial property and Know-how
rights that it controls, directly or indirectly, to Third Party Project Managers, in the
sense defined in Article 3.1 above, for their own development projects.It is established, however, that the use of this freedom may never result, after the
execution date of this Memorandum of Agreement, in the assignment or granting to a
Third Party of exclusive rights for any indication or therapeutic use and/or industrial
property rights  or Know-How  directly or indirectly controlled by IDM.By exception to what is set forth in the first paragraph of Article 3.3, and unless prior
written consent was granted by SANOFI-SYNTHELABO, IDM may not grant such licenses to Third
Parties for development programs that (i) rely on the same antigen(s) and/or the same
Antibody (antibodies) or that (ii) involve the same therapeutic indication(s) as an
on-going Development Program, based on the same family of effector MAK or DC cells. It is
stipulated by the Parties that the restrictions specified above in Article 3.3, paragraph
three (ii) shall terminate once a Product is registered for the indication covered by the
Development Program.3.4
    
    SANOFI-SYNTHELABO may exercise its right for a Development Option under this Article III for
up to ten (10) option rights for the first five (5) years following the Effective Date of this
Memorandum of Agreement.At the end of the fifth (5th) year following the Effective Date of this
Memorandum of Agreement, SANOFI-SYNTHELABO may exercise its right for a Development Option
under this Article III for up to two (2) option rights per year. SANOFI-SYNTHELABO
therefore has a credit equal to twenty (20) Development Option rights, including two (2)
Preferential Options as defined in Article 3.8 below.3.5
    
    SANOFI-SYNTHELABO shall be required to exercise its right for a Development Option within two
(2) months after notice was given by IDM to SANOFI-SYNTHELABO of a Development Offer. IDM
shall give such notice of a Development Offer to SANOFI-SYNTHELABO as soon as possible after
the date on which the Executive Committee has approved the corresponding proposed Development
Program, and no later than sixty (60) days after such date. According to the provisions of
Article 3.2 (b), the Research Committee shall submit to the Development Committee the proof of
concept (as defined in Article 3.2 (a) (i)), and the latter shall submit to the Executive
Committee for approval a proposed Development Program including an estimated timetable and
budget, the Executive Committee having a maximum of thirty (30) days from the date of
communication of the corresponding proposal to approve this Development Program.
 (a)
    
    In the event SANOFI-SYNTHELABO were to notify IDM within the above-mentioned
period of two (2) months of its decision not to exercise its right for a Development
Option, or if it fails to give any reply to IDM within that time, IDM shall be
released from any obligation in connection with the development of the Product in the
therapeutic indication specified in the Development Offer, and IDM shall be free to
develop this Product in that
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therapeutic indication either on its own or in collaboration with a Third Party.The non-exercise by SANOFI-SYNTHELABO of its right for a Development Option shall
in no way affect the option right credit it has under Article 3.4 above for the
corresponding period.(b)
    
    In the event SANOFI-SYNTHELABO were to notify IDM within the above-mentioned
period of two (2) months of its decision to exercise its option right,
SANOFI-SYNTHELABO shall assume financing of the corresponding Development Program, for
which IDM will retain operational responsibility, in accordance with provisions of
Article V below.Exercise by SANOFI-SYNTHELABO of its right for a Development Option shall affect
its option right credit pursuant to Article 3.4 above. Such credit shall be reduced
for the corresponding period by one unit for each exercised option right.
 3.6
    
    For each right for a Development Option exercised by SANOFI-SYNTHELABO pursuant to the
provisions of this Article III, SANOFI-SYNTHELABO shall pay IDM an amount not including taxes
of [. . . *** . . .] , subject to the provisions of Article 3.8 below.This amount shall be paid by bank transfer to the bank account whose references will be
provided in due time to SANOFI-SYNTHELABO, within thirty (30) days of the date of receipt
by IDM of the notice from SANOFI-SYNTHELABO of its decision to exercise its right for a
Development Option pursuant to the provisions of Article 3.5 (b) above.3.7
    
    Notwithstanding the foregoing provisions, IDM shall submit to SANOFI-SYNTHELABO as soon as possible following the execution date of this Memorandum of
Agreement, all its on-going Development Programs outstanding at that date for which IDM is
the Project Manager and which are listed in Annex 3.7 (the On-going Programs). IDM shall
transmit to SANOFI-SYNTHELABO, subject to the confidentiality and restricted use
obligations defined in Article IX of this Memorandum of Agreement, all information
necessary to enable SANOFI-SYNTHELABO to evaluate its interest and possibly exercise a
right for a Development Option to such On-going Programs.SANOFI-SYNTHELABO shall have, with respect to these On-going Programs,
the right to exercise, or not, its Development Options on the terms and conditions defined
in this Memorandum of Agreement, and such right may be exercised, at the sole option of
SANOFI-SYNTHELABO and without limitation, for one, several or all of the On-going Programs,
provided, however, that it may not exceed the limit of ten (10) programs specified for the
first five (5) years of this Memorandum of Agreement.SANOFI-SYNTHELABO shall be required to exercise its rights for a Development Option
for the On-gong Programs not later than (i) November 1,
 *
    Confidential Treatment Requestedunder
17 C.F.R. §§ 200.80(b)(4) and240.24b-2(b)(1)
 8




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3.8
    
    IDM grants preferential terms to SANOFI-SYNTHELABO for two (2) rights for a Development
Option (the Preferential Options) among the twenty (20) held by SANOFI-SYNTHELABO pursuant
to Article 3.4 above.Pursuant to the preceding paragraph, preferential terms and conditions shall be understood
to mean that SANOFI-SYNTHELABO, for each of the two (2) Preferential Options, shall be
released from any obligation to pay the amounts specified in Article 3.6, Article 5.4 and
Article 6.4.Consequently, SANOFI-SYNTHELABO shall only be obligated to pay IDM, for each of these
Preferential Options, and solely to the extent it exercises the corresponding Option for
Exclusive License, the amount specified in Article 6.5 below, within the limits defined in
that Article.SANOFI-SYNTHELABO may freely choose the Development Offer for which it decides to exercise
the first of its Preferential Options, but (i) may not exercise the second immediately
after the first, and (ii) may not exercise a Preferential Option for an On-going Program as
defined in Article 3.7 above.3.9
    
    Once IDM has obtained the in vitro proof of concept for a given Product and the tolerance
data on said Product in the first six (6) treated patients but if no collaboration between IDM
and SANOFI-SYNTHELABO has taken place with respect to such Product within the framework of the
provisions of this Memorandum of Agreement (and specifically in the event that, without
prejudice to the provisions of Article 5.7 below, the Parties cannot agree within the
 9




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Executive Committee as to the corresponding Development Program), IDM shall in no way be
able to enter into a collaboration agreement with any Third Party with respect to said
Product on terms that are more favorable than the terms and conditions proposed by IDM to
SANOFI-SYNTHELABO.In order to permit SANOFI-SYNTHELABO to ensure that IDM will duly fulfill its obligation
under this Article 3.9 and solely to that end, IDM shall inform SANOFI-SYNTHELABO in a
timely fashion of any negotiations undertaken by IDM with a Third Party with respect to
such a collaboration agreement, and shall inform it, in any event and prior to the
conclusion of such collaboration agreement, of the final terms and conditions of such
agreement. This information shall be covered by the confidentiality and restricted use
obligations defined in Article IX of this Memorandum of Agreement.In no event shall the provisions of this Article 3.8 be construed as limiting or
restricting in any way the priority right of SANOFI-SYNTHELABO to IDMs Development
Programs on the terms and conditions defined in this Memorandum of Agreement. In no event
shall the provisions of this Article 3.8 be construed as limiting or restricting in any way
whatsoever IDMs property rights to the products excluded from this Memorandum of
Agreement.
 ARTICLE IV  JOINT COMMITTEES
 4.1
    
    In order to ensure the follow-up of all Development Programs undertaken by the Parties under
this Memorandum of Agreement, the Parties agree to set up :
 (a)
    
    an Executive Committee responsible for approving each Development
Program (as detailed in Article 3.5, paragraph one), prior to their communication to
SANOFI-SYNTHELABO pursuant to the provisions of Article 3.2 (b) above, as well as for
the overall follow-up and approval of any modification to the initial Development
Programs.(b)
    
    a Research Committee responsible for evaluating each Product from the
date the proof of concept is obtained until the Product enters Phase I Development.(c)
    
    a Development Committee responsible for the definition and
supervision of each Development Program subsequent to the date the Proof of Concept is
obtained until the date the corresponding Marketing Authorizations are obtained and
the submission of these Development Programs for approval to the Executive Committee.(d)
    
    a Manufacturing and Supply Committee responsible for supervising all
aspects relative to the manufacturing, supply and cost of the Products (a first
estimate of which shall be submitted to the Executive Committee not later than the end
of Phase II of each Development Program) in the event of the exercise by
SANOFI-SYNTHELABO of one of its rights for Exclusive License Option in accordance with
the provisions of Article VI below, and
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(e)
    
    a Finance Committee responsible for budget control of the Development
Programs undertaken pursuant to this Memorandum of Agreement.
   4.2
    
    The Joint Committees shall be constituted as follows:
 
    
    The Executive Committee shall consist of six (6) permanent
members, three (3) for each of the Parties.
      11




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4.3
    
    Each of the Joint Committees has authority for information, consultation and (i)
recommendation in their respective areas with respect to the Joint Committees other than the
Executive Committee and (ii) decision-making with respect to the Executive Committee. To be
valid, a recommendation and/or a decision, as the case may be, requires that all permanent
members of both Parties are present or represented and that said permanent members present or
represented approve it unanimously. In the event there is no unanimous agreement as to a
recommendation submitted for approval to a meeting of any of the Joint Committees other than
the Executive Committee, the recommendation may be submitted to the Executive Committee
itself, on the initiative of any permanent member of the corresponding Joint Committee. In
the event of any disagreement within the Executive Committee with respect to a decision
submitted to the Executive Committee for approval, that cannot be resolved in application of
the provisions of this Memorandum of Agreement, provisions of Article 5.7 below shall apply.It is understood, however, that in no event may the decisions of any one of the Joint
Committees, including the Executive Committee, have the effect of modifying in any way
whatsoever the rights and obligations of the Parties under this Memorandum of Agreement;
any modification of the terms and conditions of this Memorandum is to be made pursuant to
the provisions of Article 11.2 below. In no event may the joint minutes of the Joint
Committees therefore be deemed as constituting amendments to this Memorandum of Agreement.
 ARTICLE V  DEVELOPMENT
 5.2
    
    Without prejudice to the provisions of Article 3.2
above, and without waiting for a formal Development Offer, IDM shall provide SANOFI-SYNTHELABO, through the Research
Committee, and as soon as possible after obtaining each of them, with (i) the in vitro
proof of concept for any Product under development at IDM, and (ii) the in vivo safety data
for such Product in the first six (6) treated patients.As of providing such information, the Parties (i) shall work together in the appropriate
Joint Committees to prepare the corresponding proposed Development Program (as detailed in
Article 3.5, paragraph one), to be submitted to the Executive Committee for approval and
(ii) shall consult each other, within the Research Committee and the Development Committee,
in connection with IDMs preparation of the Development Offer to be submitted to
SANOFI-SYNTHELABO in accordance with provisions of Article 3.2 above.More generally, IDM shall regularly inform SANOFI-SYNTHELABO, on a priority basis with
respect to any Third Party, during meetings of the Executive Committee, of its entire
research and development policy and of all Product development projects which possible
launch it intends to investigate. For all useful purposes and effects, it is recalled that
the information obtained by SANOFI-SYNTHELABO in this context shall be covered by the
confidentiality and restricted use obligations defined in Article IX.Each of the Parties shall remain responsible for the costs and expenses that it incurs in
relation with this Article 5.1.
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5.2
    
    In the event SANOFI-SYNTHELABO exercises a Development Option for a given Development
Program, IDM agrees to carry out diligently the corresponding Development Program as
potentially amended by the Executive Committee, in strict compliance with applicable laws and
regulations as well as good International Clinical Practices (ICH). IDM shall devote
appropriate material and human resources to properly carry out the Development Program in
compliance with the corresponding implementation timetable and budget. As of the exercise by
SANOFI-SYNTHELABO of a Development Option, IDM may not interrupt a Development Program at any
phase whatsoever, without the prior written approval of SANOFI-SYNTHELABO, subject to the
provisions of Article 5.4 below.The provisions applicable in the event IDM is not in a position to assume its obligations
under the Development Program are defined in Article 5.8 below.Notwithstanding the financing of the Development Program by SANOFI-SYNTHELABO, IDM shall
carry out the corresponding work under its own responsibility. Consequently, IDM waives
any recourse against SANOFI-SYNTHELABO or any one of its Affiliates for any damage that it
might sustain out of the implementation of a given Development Program, and shall hold
SANOFI-SYNTHELABO and/or any of its Affiliates harmless in any Third Party action based on
a damage sustained by that Third Party out of the Development Program.Throughout the implementation period of the Development Program, SANOFI-SYNTHELABO or a
Third Party expert designated by SANOFI-SYNTHELABO and bound by a confidentiality
obligation, may audit, including on the premises of any Third Party to which IDM might
decide to subcontract all of part of the implementation of the Development Program and for
which IDM stands surety under the provisions of this Article, subject to reasonable prior
notice and during normal office hours, all of the development work carried out under the
Development Program, as well as all documents and instruments substantiating the costs and
expenses resulting therefrom for IDM. The information obtained by SANOFI-SYNTHELABO within
the context of such audit shall be covered by the confidentiality and restricted use
obligations defined in Article IX.In the event of the exercise by SANOFI-SYNTHELABO of its right for Exclusive License Option
in light of the Final Development Results, IDM agrees to prepare, pursuant to the rules of
the Art and applicable regulations in the Countries, the necessary Applications required
for filing by SANOFI-SYNTHELABO, its Affiliates and/or its licensees, requests for
Marketing Authorizations for the Countries for which the Exclusive License Option has been
exercised.All results from the implementation of each Development Program shall be the sole property
of IDM and shall be part of the purpose of the Exclusive License Option.IDM, after consulting with SANOFI-SYNTHELABO, shall arrange for the patent protection of
these results, as they are obtained, in its own name and shall be responsible both in
France and abroad for initiating the corresponding patent
 13




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applications procedures, shall manage the procedures from the review of these applications
through the issuance of the Patents, as well as any objection and appeals proceedings. IDM
shall also be responsible for the costs of filing, maintenance and defense with regard to
the Patents filed in the United States of America, Japan and in all States of the European
Union, both during the period relative to the implementation of the developments by IDM and
during the period of commercial exploitation of the corresponding results by
SANOFI-SYNTHELABO. SANOFI-SYNTHELABO, for its part, shall be responsible for the costs of
filing, maintenance and defense relative to Patents filed in any Country other than the
United States of America, Japan and the States comprising the European Union involving
these results, both during the period relative to the implementation of the corresponding
developments by IDM and during the period of commercial exploitation of the corresponding
results by SANOFI-SYNTHELABO.Prior to communication of the summary report of the final results of the studies relative
to the Phase I of each Development Program, IDM shall give to SANOFI-SYNTHELABO the final
study relative to the freedom to exploit the Product covered by said Development Program.
 5.3
    
    SANOFI-SYNTHELABO may permanently at any time without justification and subject only to a
prior notice of three (3) months given to IDM, interrupt each Development Program without
owing any compensation. In the event SANOFI-SYNTHELABO exercises its interruption right, IDM
shall be free to develop the corresponding Product in the therapeutic indication covered by
the interrupted Development Program, either on its own or in collaboration with a Third Party.
SANOFI-SYNTHELABO shall not be subject to giving any prior notice in the event its decision
is made within the context of the provisions of Article 5.4 (c) below.5.4
    
    At the end of Phase I, Phase II and Phase III of each Development Program, IDM shall provide
SANOFI-SYNTHELABO with a summary report of final results of such clinical Phase, this
submission will be made within thirty (30) days from completion of the report. The Executive
Committee shall then meet within one (1) month of the submission to evaluate these final
results.
 (a)
    
    If the Executive Committee decides, based on the results of the clinical
Phase, to pursue the implementation of the Development Program, SANOFI-SYNTHELABO
shall owe IDM, subject to the provisions of Article 3.8 below, the following amounts:
 (i)
    
    In the event of a decision, duly set forth in joint minutes,
and based on a Phase I summary report, to start Phase II work,
SANOFI-SYNTHELABO shall owe IDM an amount equal to [. . . *** . . .]
before taxes.This amount shall be paid by bank transfer to the bank account whose
references shall be provided in a timely manner to SANOFI-SYNTHELABO
within thirty (30) days from the date of the joint minutes referred to
above.
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(b)
    
    If the Executive Committee decides, given the results of the clinical Phase,
that continuation of the work started under the Development Program is subject to
modification of the constituents of the Product as such elements are listed in Article
1.18 of this Memorandum of Agreement, the following provisions shall apply:
 (i)
    
    if the modification applies only to a single constituent of
the Product for which a new element is substituted, the modified Product shall
be considered to be the continuation of the initial Product, as a consequence
of which the decision to continue work within the context of the modified
Development Program shall in no way impact the Development Option right credit
of SANOFI-SYNTHELABO. Any payment made within the context of the initial
Development Program shall, to all effects and purposes, be deemed to have been
made in the context of the modified Development Program.(ii)
    
    if the modification applies to two or more constituents, and
without prejudice to the provisions of Article 5.6 (a) below, the modified
Product shall be considered a new Product which, according to the provisions
of Article 3.2 above, shall require a new Development Offer, on the terms and
conditions defined in said Article 3.2.
 (c)
    
    If the Executive Committee decides, based on the results of the clinical
Phase, not to pursue the implementation of the subsequent Phases of the Development
Program, or if SANOFI-SYNTHELABO decides on its own, based on these results, to
permanently interrupt the Development Program pursuant to the provisions of Article
5.3, IDM shall be free, without any other consideration on its part, to develop the
corresponding Product in the therapeutic indication covered by the interrupted
Development Program, either on its own or in collaboration with a Third Party.(d)
    
    In the event there is no agreement within the Executive Committee as to the
decision submitted to it for approval, the provisions of Article 5.7 below shall apply
if necessary.
 5.5
    
    SANOFI-SYNTHELABO shall cover all the costs and expenses directly linked to the
implementation by IDM of each Development Program, within the limits defined in the budget
estimate for said Development Program.
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5.6
    
    (a) If during the implementation of the given Development Program, it appears to one of the
Parties that a different therapeutic indication (New Indication) or an extended indication
(Extended Indication) may be obtained with the same Product (apart from the initial
therapeutic indication) within the context of a modified Development Program, the Parties
shall negotiate in good faith any change to the Development Program.(b) In the event of a disagreement between the Parties as to the appropriateness or
conditions of this change within two (2) months of the date on which the first-acting Party
shall have notified the other of its decision to start the negotiations specified in
paragraph (a) above, each Party shall be free to undertake by itself, at its sole expense,
the development corresponding to the New Indication or to the Extended Indication (the
Supplemental Development). In such event:
 (i)
    
    Regardless of which Party undertakes this Supplemental Development,
SANOFI-SYNTHELABO shall be released with regard to that party from any obligation to
pay any milestone whatsoever for the different corresponding phases of development, or
upon any regulatory filing with the competent Health Authorities if such development
is successful (and in particular from any payment obligation under Articles 3.6, 5.4,
6.4 and 6.5 of this Memorandum of Agreement).(ii)
    
    If the Party which decided to undertake the Supplemental Development is
SANOFI-SYNTHELABO, IDM shall grant the latter, free of charge, a non-exclusive
license, with the right of sublicense, for IDMs rights to the Industrial Property of
the Product, including the results of work undertaken earlier under the relevant
Development Program, in order to implement or cause to be implemented said
Supplemental Development IDM shall supply SANOFI-SYNTHELABO with the Product at its
full manufacturing cost for the needs of such Supplemental Development.All results of the implementation of the Supplemental Development shall be the
exclusive property of the Party that will have assumed responsibility for it.(iii)
    
    In the event the Supplemental Development makes it possible to obtain from
the competent Health Authorities a New Indication or an Extended Indication for the
Product, the following provisions shall apply:
 
    
    At the end of the Supplemental Development, SANOFI-SYNTHELABO
shall have a worldwide exclusive license option (including vis-à-vis IDM and
its Affiliates), with the right to sublicense, for IDMs rights to the
Industrial Property of the Product in order to sell the Product, cause it to
be sold, exploit it, cause it to be exploited in the Territory in such New
Indication or Extended Indication.
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If the Supplemental Development was done by IDM, the Industrial Property of the
Product covered by this option shall include the results of the Supplemental
Development.
    
    In the event this option is exercised by SANOFI-SYNTHELABO,
it is understood that (1) the exclusive license thus granted would have a term
identical to the term defined in paragraph (x) of Article 6.3 (b) below, (2)
IDM shall supply the Product to SANOFI-SYNTHELABO on terms and conditions
identical to those defined in paragraph (viii) of Article 6.3 (b) below, the
selling price of the Product as defined in this Article being deemed to
include compensation for this exclusive license, and (3) the Party that was
responsible for the Supplemental Development shall receive a specific payment
defined in accordance with the following provisions:
 
    
    If the Supplemental Development was
done by IDM, SANOFI-SYNTHELABO shall pay IDM [. . . *** . . .] of the updated amount, based on the average Euribor
one-year rates determined as of the date of exercise of the
above-mentioned option and then on each anniversary date of such
exercise, of all the costs and expenses directly linked to the
implementation by IDM of the Supplemental Development, plus a
Developer royalty equal to [. . . *** . . .] of Net Sales
(as this term if defined in Article 6 below) of the Product in
such New Indication or Extended Indication.
    
    If the Supplemental Development was done by SANOFI-
SYNTHELABO, IDM shall pay SANOFI-SYNTHELABO a Developer royalty
equal to [. . . *** . . .] of Net Sales (as this term if
defined in Article 6 below) of the Product in such New Indication
or Extended Indication.
 
 5.7
    
    In the event of a disagreement within the Executive Committee as to a decision
submitted for approval that would not permit the Development Program to be pursued
under reasonable conditions (i) that is not resolved in application of the provisions
of this Memorandum of Agreement and in particular Articles 5.6 (b) or 5.8 above, (ii)
that does not result from a unilateral decision by IDM to interrupt the implementation
of a Development Program at the end of any one of its Phases, and/or (iii) that does
not result from the failure by one of the Parties to perform its obligations under
this Memorandum of Agreement, the following provisions shall apply:
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(a)
    
    The disagreement shall be noted in the joint minutes of the corresponding Executive
Committee meeting.A second meeting of the Executive Committee shall be called and shall meet within one
(1) month of the date of the meeting during which this disagreement was noted. At
this second meeting, the members of the Executive Committee shall use their best
efforts to resolve in good faith the difference noted.(b)
    
    In the event of a disagreement that persists after this second meeting of the
Executive Committee, this fact shall again be noted in the corresponding
joint minutes, and the difference shall be submitted for resolution to the
respective General Managements of both Parties (the Chairman of
the Board of Directors for IDM, and either the Chairman of the Board of
Directors or the Director of Research and Development for SANOFI-
SYNTHELABO). General Managements of the Parties shall use their
best efforts to resolve the difference in good faith.
 (i)
    
    In the absence of a friendly agreement between General
Managements of the Parties within sixty (60) days of the date of the second meeting
of the Executive Committee referred to above, the Parties shall designated by
mutual consent an investment bank of international reputation with specific
competence in the field of evaluating pharmaceutical development projects
(hereinafter, the Expert), which shall be responsible for assessing the market
value of commercial rights and the Parties respective revenues derived from the
results of the Development Program at issue, as such commercial rights and revenues
result from the provisions of this Memorandum of Agreement. This assessment shall
be based on a global fair market value for the product related to the development
program and shall be adjusted to reflect the corresponding development risk in
terms of the clinical Phase reached by such Development Program concerned on the
date when this assessment is made.The Expert shall have a period of forty-five (45) days to notify his assessment to
the Parties. Each Party shall be authorized to provide the Expert, as soon as
possible after the start of the experts valuation period, and for information
purposes only, with a copy addressed to the other Party, (i) of its own assessment
of these commercial rights and revenues as well as the substantiation for this
assessment, and (ii) a single critical analysis of the valuation made by the other
Party.Absent an agreement between the Parties as to designation of the Expert, the latter
shall be named by the President of the International Chamber of Commerce of Paris
at the instance of the first-acting Party.The Experts fees and costs shall be shared equally by the Parties.
 (ii)
    Based on the assessment made by the Expert, IDM shall have a right to
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take back any rights granted to SANOFI-SYNTHELABO pursuant to the provisions of
this Memorandum of Agreement regarding the results relative to the said Development
Program, subject to payment by IDM to SANOFI-SYNTHELABO, by way of compensation, of
an amount corresponding to the assessment of the value of SANOFI-SYNTHELABOs
rights by the Expert. IDM shall be required to notify SANOFI-SYNTHELABO of its
decision to exercise its right to take back within three (3) months of the date on
which the Expert notifies the Parties of the results of its evaluation pursuant to
the provisions of paragraph (i) above, payment of the corresponding amount to be
made by bank transfer to the account whose references shall be communicated in a
timely fashion by SANOFI-SYNTHELABO not later than the expiration date of the
above-mentioned period of three (3) months.(iii)
    
    If IDM fails to exercise its right to take back within the above-mentioned
period or if, having exercised such right by the specified deadline, if IDM fails
to pay the amount of the corresponding compensation by that same deadline,
SANOFI-SYNTHELABO shall have an exclusive license option to the results relative to
the said Development Program, subject to the payment by SANOFI-SYNTHELABO to IDM,
by way of compensation, of an amount corresponding to the Experts assessment of
the value of the IDMs rights.
 
    
    SANOFI-SYNTHELABO shall have a period of three (3) months
following the end of the period of three (3) months specified in paragraph (ii)
above in which to exercise, or not, the above-mentioned exclusive license
option.
    
    If SANOFI-SYNTHELABO exercises its exclusive license option
by the above-mentioned deadline, IDM shall grant SANOFI-SYNTHELABO an
exclusive worldwide license (including with respect to IDM and its Affiliates)
with the right to sublicense, for its rights to the Intellectual Property of
the Product, including the results from work previously carried out under the
said Development Program, in order to further carry out or cause to be carried
out the Development Program, to sell, cause to be sold, to exploit, cause to
be exploited, the Product in the therapeutic indication covered by the
Development Program.
    
    In return for the payment by SANOFI-SYNTHELABO to IDM of the
above-mentioned compensation, which shall take place within the
above-mentioned period of three (3) months by bank transfer to the account
whose references shall be indicated in a timely fashion by IDM (i)
SANOFI-SYNTHELABO shall not be required to make any milestone payment on the
different corresponding clinical Phases while pursuing the Development
Program, or, upon obtaining any Marketing Authorization for the Product
covered by this Development Program if it is successful, to make any payment
under Articles 3.6, 5.4, 6.4 and 6.5 of this Memorandum of Agreement, (ii) IDM
shall be required to supply the Product to SANOFI-SYNTHELABO, at its own full
manufacturing cost, not only for the needs of the Development
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Program but also, in case it is successful, and at the same full manufacturing
cost, for the needs of the commercial exploitation of the Product by
SANOFI-SYNTHELABO. In the event that, for any reason, IDM proves unable to
supply the Product, the above exclusive license shall, without prejudice to any
other action available to SANOFI-SYNTHELABO as a result of this failure, be
extended without any modification of the terms and conditions of its
compensation, to the right to produce the Product and/or cause it to be
produced, and (iii) SANOFI-SYNTHELABO shall not be required to pay any royalty
of any kind whatsoever in payment of the corresponding exclusive license.
    
    All results of the implementation of the Development Program
shall be the exclusive property of SANOFI-SYNTHELABO.
    
    The exclusive license thus granted shall have a term identical to the
term defined in paragraph (x) of Article 6.3 (b) below.
 5.8
    
    In the event IDM continues in its failure to perform its obligations under any Development
Program thirty (30) days following receipt of the formal notice given by SANOFI-SYNTHELABO to
IDM to remedy this default, and without prejudice, if applicable, to the implementation of the
provisions of Article 5.7 above, SANOFI-SYNTHELABO shall be free to decide to proceed alone to
carry out the Development Program. The same provisions shall apply in the event IDM were to
decide unilaterally to interrupt a Development Program at the end of any of its phases. In
such event:
 (a)
    
    SANOFI-SYNTHELABO shall be released, with respect to continuing the
Development Program, from any obligation to pay any milestone on the corresponding
different phases, or with respect to obtaining any Marketing Authorization for the
Product covered by said Development Program if it is successful, from any payment
obligation under Articles 3.6, 5.4, 6.4 and 6.5 of this Memorandum of Agreement.(b)
    
    IDM shall grant SANOFI-SYNTHELABO an exclusive worldwide license (including
with respect to IDM and its Affiliates), with the right to sublicense, for its rights
to the Intellectual Property of the Product, including the results from work
previously carried out under such Development Program, to further carry out such
Development Program or to cause it to be carried out, to sell the Product, to cause it
to be sold, to exploit it, to cause it to be exploited, in the therapeutic indication
covered by the Development Program. IDM shall supply SANOFI-SYNTHELABO, at its full
cost price, with Product for the needs of the Development of Program.All results of the implementation of the Development Program shall be the sole
property of SANOFI-SYNTHELABO.(c)
    
    the exclusive license thus granted shall have a term identical to the term
defined in paragraph (x) of Article 6.3 (b) below, and IDM shall supply the Product to
SANOFI-SYNTHELABO, in a commercial phase, on terms and conditions identical to those
defined in paragraph (viii) of Article 6.3
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below, the selling price of the Product as defined in this Article being deemed to
include payment for this exclusive license, SANOFI-SYNTHELABO shall also receive a
specific payment equal to, at the choice of IDM:
 
    
    either [. . .***. . .] of the updated amount, based
on the average Euribor one-year rates posted on the exercise date of the above
option, then on each anniversary date, of all the direct costs and expenses
incurred by SANOFI-SYNTHELABO for implementation of the Supplemental
Development, plus a Developer royalty equal to [. . .***. . .]of
Net Sales (as such term is defined in Article 6 below) of the Product in the
therapeutic indication covered by the Development Program,
    
    or a Developer royalty equal to [. . . *** . . .]
of Net Sales (as such term is defined in Article 6 below) of the Product
in the new Indication or Extended Indication concerned.
  5.9.
    
    In the event the Party that chooses not to undertake the Supplemental Development were to
reasonably identify an ethical risk related to the implementation of the Supplemental
Development by the other Party, it may request by registered mail with return receipt
addressed to the other Party (the Request for an Ethical Expert Analysis), the set up of a
committee of experts (the Ethics Commission), staffed as indicated below, in charge of
assessing the compliance of the Supplemental Development with standard ethical rules in the
field of pharmaceutical development applicable to the type of therapeutic indication covered
by the Supplemental Development.If no Request for an Ethical Expert Analysis has been made within one (1) month from the
date on which the Party that decided to undertake the Supplemental Development unilaterally
makes this decision known to the other Party, the latter may no longer take advantage of
the provisions of this paragraph (iv).This Ethics Commission shall include five (5) experts in the field of pharmaceutical
development, two (2) of them being named by SANOFI-SYNTHELABO, two (2) being named by IDM
and the fifth and last, acting as Chairman of the Ethics Commission, being named either by
mutual agreement between SANOFI-SYNTHELABO and IDM or, absent mutual agreement within
fifteen (15) days of the date of notification of the Request for an Ethical Expert
Analysis, by the President of the International Chamber of Commerce, at the request of the
first-acting party. The experts shall be chosen for their international reputation in such
field.The Expert Commission shall submit its opinion, which shall be binding on the Parties,
within a period of forty-five (45) days from the date of the designation of
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5.10.
    
    It is understood by the Parties that in the event SANOFI-SYNTHELABO, after exercising a
Development Option right, were to interrupt the corresponding Development Program,
SANOFI-SYNTHELABO shall have a right of first refusal as to any proposed collaboration
agreement concluded subsequently by IDM with a Third Party pertaining to such Development
Program, or as to any development program substantially similar to such Development Program
(hereinafter the Draft Agreement).This right of first refusal shall apply on the following conditions:
 (a)
    
    SANOFI-SYNTHELABO may use its right of first refusal only up toa maximum of three (3) rights of first refusal actually exercised.(b)
    
    Until the actual exercise by SANOFI-SYNTHELABO of its three (3) rights of
first refusal, IDM shall notify SANOFI-SYNTHELABO, subject to the confidentiality and
restricted use obligations defined in Article IX below, of any firm offer made by a
Third Party in good faith pertaining to a Draft Agreement that shall set forth in
detail all the determining economic and contractual provisions of the projected
collaboration under the said Draft Agreement.
  ARTICLE VI  OPTION for EXCLUSIVE RIGHT
 6.1.
    
    Pursuant to the terms and conditions specified in this Memorandum of Agreement, IDM hereby
grants to SANOFI-SYNTHELABO an irrevocable option (hereinafter the Exclusive License Option)
to obtain, based on the Final Development Results, an exclusive license (including vis-à-vis
IDM and its Affiliates) for its rights to the Industrial Property of the Product in order to
sell the Final Product, to cause it to be sold, to exploit it, to cause it be exploited in the
Territory in the therapeutic indication covered by the corresponding Marketing
Authorization.
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6.2.
    
    SANOFI-SYNTHELABO shall have an Exclusive License Option for each Development Program
carried out to its term in application of this Memorandum of Agreement, or a maximum
possible credit equal to twenty (20) Exclusive License Option rights.6.3.
    
    SANOFI-SYNTHELABO shall be required to exercise its Exclusive License Option within two (2)
months from the date of notification by IDM to SANOFI-SYNTHELABO of the summary report of the
Final Development Results, IDM shall give notice of the Final Development Results as soon as
possible after the date the corresponding Phase III Study is finalized, and not later than
sixty (60) days following such finalization date.
 (a)
    
    In the event SANOFI-SYNTHELABO notifies IDM by the above-mentioned deadline
of two (2) months of its decision not to exercise its option right, or fails to
provide IDM with any reply by that deadline, IDM shall be released from any obligation
with respect to the Final Product in the therapeutic indication covered by the
corresponding Development Program, and IDM shall be free to exploit this Final Product
in that therapeutic indication either on its own or in collaboration with a Third
Party.(b)
    
    In the event SANOFI-SYNTHELABO notifies IDM within the above-mentioned period
of two (2) months of its decision to exercise its Exclusive License Option, it shall
have, subject to the exercise by SANOFI-SYNTHELABO of its right of waiver as defined
in Article 6.5 below, an exclusive license (including vis-à-vis IDM and its
Affiliates) for IDMs rights to the Industrial Property of the Product in order to
sell the Final Product, cause it to be sold, exploit it, cause it to be exploited in
the Territory in the therapeutic indication covered by the corresponding Marketing
Authorization (hereinafter the Exclusive License). The Exclusive License shall
comply with the following terms and conditions, which shall be carried over by the
Parties into a License and Supply Contract that the Parties will formalize within two
(2) months of the date of the exercise by SANOFI-SYNTHELABO of its Exclusive License
Option:
 (i)
    
    Subject to the provisions of the following paragraph,
SANOFI-SYNTHELABO shall determine at its discretion the Countries of the
Territory in which it intends to file an application for an authorization to
market and sell the Product under the Exclusive License. It shall provide IDM
with a list of these Countries within two (2) months following the date on
which it exercises its Exclusive License Option.Notwithstanding the foregoing provisions, SANOFI-SYNTHELABO agrees to file
at least (i) one Marketing Authorization in the United States of America
with the Food and Drug Administration, and (ii) one European Marketing
Authorization with the European Medication Evaluation Agency (EMEA) or,
alternatively, a Marketing Authorization for [. . .***. . .] Major
Countries of the European Union.
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(ii)
    
    Within three (3) months from the date on which IDM receives
the notification from SANOFI-SYNTHELABO referred to in paragraph (i) above,
IDM shall remit to SANOFI-SYNTHELABO the Applications necessary to obtain the
Marketing Authorizations in the said Countries in the name and on behalf of
SANOFI-SYNTHELABO, its Affiliates and/or its licensees. After validation of
these Applications by the Regulatory Affairs Office of SANOFI-SYNTHELABO,
which must be obtained within a period of two (2) months from the date IDM
provides the Applications, SANOFI-SYNTHELABO will file the corresponding
requests with the Health Authorities within a maximum of two (2) months
following such validation.(iii)
    
    In the event SANOFI-SYNTHELABO fails to make the first
commercial sale of the Product in the United States of America within
[. . .***. . .] from the date on which it has, cumulatively, (i) obtained the
corresponding Marketing Authorization, and (ii) has met all local requirements
for marketing the Product, and in particular, all other administrative
authorizations, including any authorization relative to the sales price, IDM
shall have the right, upon simple notification to SANOFI-SYNTHELABO of its
decision, to take back the corresponding commercial rights. In the event IDM
exercises this right, IDM shall then be released from any obligation under the
License and Supply Contract for the United States of America, which would then
be deemed as no longer included in the territory of the Exclusive License and
IDM will be free to exploit this Final Product in the therapeutic indication
either on its own or in collaboration with a Third Party. SANOFI-SYNTHELABO
shall, for its part, not be entitled to any payment of any kind whatsoever.(iv)
    
    In the event SANOFI-SYNTHELABO fails to make the first
commercial sale of the Product in at least [. . .***. . .] Major countries of
the European Union within [. . .***. . .] of the date as of which it has
cumulatively, in each such country, (i) obtained the corresponding Marketing
Authorization and (ii) complied with all local terms and conditions necessary
for marketing the Product and, in particular all other administrative
authorizations, including any authorization relative to the sales price, IDM
shall have the right, upon simple notification of its decision sent to
SANOFI-SYNTHELABO, to take back the corresponding commercial rights within the
limits defined below. In the event of the exercise by IDM of this right, IDM
would then be released from any obligation under the License and Supply
Contract for the Countries of the European Union other than the Countries in
which SANOFI-
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(v)
    
    The Exclusive License shall require payment by
SANOFI-SYNTHELABO to IDM of an additional sum to be paid upon obtaining
Marketing Authorizations for the Product pursuant to the provisions of Article
6.5 below.(vi)
    
    The Product shall be marketed by SANOFI-SYNTHELABO, its
Affiliates or its licensees, under a trade name chosen by joint agreement
between SANOFI-SYNTHELABO and IDM and registered in the name and on behalf of
IDM (hereinafter the Trade Name). In return for the exploitation of the
Trade Name, SANOFI-SYNTHELABO shall pay IDM a royalty equal to
[. . .***. . .] of Net Sales of the Product (as this term is defined below).This royalty shall be included in the Selling Price of the Product (as
this term is defined below) during the life of the Exclusive License.
Upon expiration of the Exclusive Licensed, SANOFI-SYNTHELABO may engage in
the marketing of the Product under its Trade Name in return for the
payment to IDM of the [. . .***. . .] royalty referred to
above
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(vii)
    
    SANOFI-SYNTHELABO may freely decide to sublicense all or
part of the rights licensed by IDM under the Exclusive License to any
Affiliate and/or to any Third Parties.(viii)
    
    IDM shall supply the Product to SANOFI-SYNTHELABO in the form of the Final
Product at a selling price (the Selling Price) equal to
[. . . *** . . .] of Net Sales of the Product, the invoices relative to the Selling
Price of the product being payable thirty (30) days after the end of the
billing month. The Selling Price shall be deemed to be split as follows:
 
    
    Final Product (including any
payment by IDM to a Third Party of royalties linked to the use by
IDM of industrial property rights held by said Third Party[. . .***. . .]
    
    Inventor Royalty to IDM
[. . .***. . .]
    
    Trade Mark royalty (pursuant to the provisions of
paragraph (v) above):
[. . .***. . .]
  (ix)
    
    Each of the Parties may have the component parts as well as
the terms and procedures of calculation of the Final Products complete
manufacturing cost for the elapsed year audited within three (3) months of the
end of each year by an independent Expert (the Independent Expert) chosen by
mutual consent, or in the absence of mutual consent, designated by the
President of the International Chamber of Commerce of Paris at the instance of
the first acting Party:
 
    
    If the full cost price of the Final
Product as audited by the Independent Expert is, for the elapsed
year, more than [. . .***. . .] but not more than
[. . .***. . .] of Net Sales of the Product, the extra
cost shall be fully reflected on the Selling Price of the Product
in the form of an adjustment of
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
    
    If the full cost price of the Final
Product as audited by the Independent Expert is, for the elapsed
year, more than [. . .***. . .] of Net Sales of the
Product, the Parties shall discuss in good faith any adaptation
of the Exclusive License that would permit SANOFI-SYNTHELABO to
continue marketing the Product on terms and conditions of
reasonably satisfactory economic profitability. Absent an
agreement between the Parties within three (3) months from the
date the Independent Expert submits his report, SANOFI-SYNTHELABO may cancel this Exclusive License without paying
any compensation, and IDM shall be free, without paying any
consideration, to develop this Product in this therapeutic
indication either on its own or in collaboration with a Third
Party. In such event, however, it is understood by the Parties
that IDM may not market the Product or cause it to be marketed at
a Selling Price lower than the last price proposed to
SANOFI-SYNTHELABO.
    
    If the full cost price of the Final
Product as audited by the Independent Expert is, for the elapsed
year, less than [. . .***. . .] of Net Sales of the
Product, the resulting savings shall be shared equally by IDM and
SANOFI-SYNTHELABO, in the form of an adjustment of the Product
Selling Price. The corresponding payment, equal therefore to
[. . .***. . .] of this savings, shall be made by IDM
within thirty (30) days of the date on which the Independent
Expert submits his report.
  (x)
    
    Each Exclusive License shall have, Country by Country, a term
equal to the longer of the following two periods: (1) fifteen (15) years from
the date of the first commercial sale of the Product in a Country, or (2) the
expiration date of the last of the Patents covering the Product in such
Country. Upon expiration of the Exclusive License in a given Country,
SANOFI-SYNTHELABO shall have a free non-exclusive license for the Know-How in
that Country, with the right to sublicense valid so long as SANOFI-SYNTHELABO
continues to market the Product.(xi)
    
    SANOFI-SYNTHELABO may cancel each License and Supply Contract at any time,
subject only to a prior notice of twelve (12) months given to IDM, for all or part
of the Countries covered by said License and Supply Contract, and without paying
any
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6.4.
    
    Subject to the provisions of Article 3.8 above and to any use by SANOFI-SYNTHELABO of its
waiver right as defined in Article 6.5 below, for each Exclusive Option right exercised by
SANOFI-SYNTHELABO pursuant to the provisions of this Article 6, SANOFI-SYNTHELABO shall pay
IBM an amount of [. . . *** . . .] before taxes.This amount shall be paid by bank transfer to the bank account which references will be
notified in a timely fashion to SANOFI-SYNTHELABO pursuant to the provisions set forth in
Article 6.5 below.6.5.
    
    The Exclusive License shall include the payment by SANOFI-SYNTHELABO to IDM of an additional
amount if Marketing Authorizations are obtained for the Product in the United States of
America and/or in at least [. . .***. . .] Major Countries of the European Union, for a total
amount equal to not less than [. . . *** . . .] before taxes and not more than
[. . . *** . . .] before taxes, this supplemental amount being broken down on the
basis of [. . . *** . . .] of the total amount for the Marketing Authorization in
the United States of America and the remaining [. . . *** . . .] for the Marketing
Authorization in at least [. . .***. . .] Major Countries of the European Union mentioned
above. For the needs of this paragraph, SANOFI-SYNTHELABO obtaining a Marketing Authorization
for the European Market issued by the European Medication Evaluation Agency (EMEA) shall be
equivalent to obtaining a Marketing Authorization in at least [. . .***. . .] Major Countries
of the European Union.Accordingly, the additional amount to be paid by SANOFI-SYNTHELABO to IDM under this
Article if a Marketing Authorization is obtained in the United States of America, shall be
equal to not less than [. . . *** . . .] before taxes and not more than [. .
        . *** . . .] before taxes.Similarly, the additional amount to be paid by SANOFI-SYNTHELABO to IDM under this Article
if a Marketing Authorization is obtained in at least [. . .***. . .] Major Countries of the
European Union or for the European Market, shall be equal to not less
than [. . . *** . . .] before taxes and not more than [. . . *** . . .] before taxes.The final amount of this additional payment shall be defined by mutual agreement of the
Parties within thirty (30) days following notification by the appropriate Health
Authorities of the corresponding Marketing Authorization, this final amount reflecting the
potential of the Product on the market theoretically targeted, based on the rules of
adjustment as defined in Annex 6.5 attached hereto. Absent agreement between the Parties
by the specified deadline of thirty (30) days, the final amount shall be fixed, within the
specified limits, by a third
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
    
    If SANOFI-SYNTHELABO decides to exercise its right of waiver of the Exclusive
License, it shall notify IDM of its decision within a period of thirty (30) days from
the date on which it is notified by the third party expert or the date on which the
Parties agree on the final amount of the additional payment specified in this Article
6.5. In such case, SANOFI-SYNTHELABO shall be deemed, for all purposes and effects,
never to have exercised its Exclusive License Option right to the corresponding
Development Program, and shall specifically be released from any payment obligation
with respect to the amounts specified in Article 6.4 above and the final amount of the
additional payment specified in this Article 6.5.
    
    If SANOFI-SYNTHELABO does not exercise its waiver right within the
above-mentioned thirty (30) day period, it shall pay IDM simultaneously (i) the amount
specified in Article 6.4 above and (ii) the final amount of the additional payment
mentioned in this Article 6.5 by bank transfer to the bank account which references
shall be notified in a timely fashion to SANOFI-SYNTHELABO, within ten (10) days
following the expiration date of the period of thirty (30) days relative to the right
of waiver detailed above.
 ARTICLE VII  REPRESENTATIONS AND WARRANTIES
  7.1.
    
    IDM has the capacity and the power to conclude this Memorandum of Agreement, and to carry out
its corresponding obligations. Entering into this Memorandum of Agreement and performing its
obligations were duly authorized by IDMs competent corporate bodies, in application of legal,
regulatory and/or contractual provisions, and no further corporate decision is needed to
authorize the conclusion of the Memorandum of Agreement or the performance of the obligations
specified therein.7.2.
    
    Neither the performance by IDM of its obligations under this Memorandum of Agreement, nor the
performance of the provisions specified thereof (a) contravene any provision whatsoever of IDM
bylaws and/or (b) conflict with any contract whatsoever to which IDM is a party.
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7.3.
    
    On the date of exercise by SANOFI-SYNTHELABO of each Development Option and of each Exclusive
License Option pursuant to this Memorandum of Agreement, the corresponding Industrial Property
of the Product and each of the elements that comprise it shall belong to IDM in full title and
possession, or IDM may dispose of same freely under contracts concluded with Third Parties for
a period equal at least to the term of any License and Supply Contracts concluded with
SANOFI-SYNTHELABO hereunder. IDM warrants that entering into and performing this Memorandum
of Agreement, the exercise by SANOFI-SYNTHELABO of any of the Development Options or Exclusive
License Options and/or executing and performing any License and Supply Contract entered into
in application of this Memorandum shall not violate the rights of any Third Party, including
the industrial property rights of said Third Parties.
 ARTICLE VIII  AMENDMENT TO THE 1999 AGREEMENTS
  ARTICLE IX  CONFIDENTIALITY AND RESTRICTED USE
 9.1.
    
    During the life of this Memorandum of Agreement and for a period of ten (10) years following
its expiration and/or cancellation for any reason whatsoever, each of the Parties agrees,
absent any provision to the contrary in this Memorandum of Agreement, (i) not to disclose to
any Third Party information of any kind received from the other Party within the context of
the execution of this Memorandum of Agreement unless such disclosure is necessary to carry out
the provisions of this Memorandum of Agreement and (ii) not to make use of said information
except for the needs of this Memorandum of Agreement.9.2.
    
    However, the confidentiality and restricted use obligations defined under Article 9.1 above
shall not apply to information:
 
    
    that is publicly disclosed or known, or that comes to be disclosed or known, other
than by the failure by the Party having received same to perform its obligations under
this Article IX,
    
    that was already known to the Party that received it at the time it was disclosed
to it by the other Party,
    
    that the Party receiving same might receive from a Third Party subsequent to its
disclosure by the other Party, absent any failure by said Third Party to comply with
any Confidentiality obligation benefiting it,
    
    that the Party receiving them might develop on its own subsequent to its disclosure
by the other Party, independently and without the use of the information received from
the latter.
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ARTICLE X  CONDITION PRECEDENT  EFFECTIVE DATE  TERM
 10.1.
    
    Unless otherwise expressly provided in this Memorandum of Agreement, the obligations of the
Parties under this Memorandum of Agreement are subject to the cumulative performance, not
later than December 31, 2001, of the following conditions precedent:
 (a)
    
    Approval, on terms reasonably satisfactory to
SANOFI-SYNTHELABO, by the Extraordinary Shareholders Meeting of IDM of the
amended terms and procedures for the exercise of BSA 1 and 2 warrants pursuant
to the provisions of Annex 8 to this Memorandum of Agreement.(b)
    
    Execution by IDM and [. . . *** . . .] of an
Amendment to the [. . . *** . . .] License Contract specified in
paragraph 3 (a) of Annex 3.2 (c) of this Memorandum of Agreement, on terms
reasonably satisfactory to SANOFI-SYNTHELABO, giving advance authorization to
IDM, irrevocably and unconditionally, and without any restriction other than
the term of the [. . . *** . . .] License Contract itself, to
sublicense to SANOFI-SYNTHELABO, for the purposes of this Memorandum of
Agreement, the rights granted by [. . . *** . . .] under the said
Contact.(c)
    
    Execution by IDM and [. . . *** . . .] of an
Amendment to the Exclusive Patent and Know-How License Contract referred to in
paragraph 3 (b) of Annex 3.2 (c) of this Memorandum of Agreement, on terms
reasonably satisfactory to SANOFI-SYNTHELABO, giving advance authorization to
IDM, irrevocably and unconditionally, without any time restriction other than
the term of the Exclusive Patent and Know-How License Contract itself, to
sublicense to SANOFI-SYNTHELABO for the purposes of this Memorandum of
Agreement, the rights granted by [. . .***. . .] Institute under
this Contract.
   10.2.
    
    As of the date of signature of this Memorandum of Agreement, IDM agrees to carry out all the
actions necessary to fulfill the conditions precedent specified in
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10.3.
    
    Article 10.1 above, and shall use its best efforts to obtain such fulfillment. IDM
shall keep SANOFI-SYNTHELABO regularly informed of the progress of these actions, and
agrees to send, as soon as possible, notice to the latter of the fulfillment of the
conditions precedent.In the event the conditions precedent stipulated above have not all been fulfilled by
December 31, 2001, each of the Parties may cancel this Memorandum of Agreement effective
immediately, upon simple notice of its decision sent to the other Party.The cancellation of this Memorandum of Agreement within the context of the provisions of
this Article 10.2 shall not entail the payment of any compensation by one of the Parties to
the other Party, except in the event IDM fails to perform its obligations under this
Article.However, it is expressly agreed by the Parties that these conditions precedent are
stipulated for the benefit of SANOFI-SYNTHELABO and that the latter, and only the latter,
may therefore waive the benefit of one, two or all three conditions precedent by simple
notice of its decision sent to IDM by registered mail with return receipt not later than
December 31, 2001. In such event, the condition precedent for which SANOFI-SYNTHELABO has
exercised its waiver right shall be deemed as met on the date of such waiver, for all
purposes under this Memorandum of Agreement.10.4.
    
    The provisions of Article 10.1 above notwithstanding, IDM agrees, as of the date of
execution of this Memorandum of Agreement and up to and including the Effective Date of this
Memorandum of Agreement (hereinafter, the Intermediate Period), not to take any action whose
purposes and/or consequences could have a negative impact on the rights granted by to
SANOFI-SYNTHELABO under this Memorandum of Agreement, without the prior written approval of
SANOFI-SYNTHELABO.In that respect, IDM specifically agrees during the Intermediate Period, not to undertake
and/or pursue any negotiations whatsoever with a Third party, or to conclude any agreement
whatsoever with said Third Party that (i) would constitute a failure by IDM to perform its
obligations vis-à-vis SANOFI-SYNTHELABO, and in particular failure to perform the
obligations arising from Article III above, assuming that these obligations are in effect
as of the date of signature of this Memorandum of Agreement and/or (ii) that would render
inaccurate any of the representations stipulated in Annex 3.2 (c) of this Memorandum of
Agreement.10.5.
    
    This Memorandum of Agreement shall remain in effect beyond the period of ten (10) years
specified in Article 3.1 above so long as a Development Program carried out pursuant to the
provisions of this Memorandum of Agreement is being implemented and, in the event of the
exercise by SANOFI-SYNTHELABO of its right for Exclusive License for the results of said
Development Program, until the signing of the corresponding License and Supply Contract.
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ARTICLE XI  GENERAL PROVISIONS
 11.1
    
    Notices and Communications  All notices and other communications stipulated in this
Memorandum of Agreement shall be deemed to have been validly made if sent or the following
addresses:For IDM, to:172, rue de Charonne

75011 Paris  France

Attention: Managing DirectorFor SANOFI-SYNTHELABO, to:174, Avenue de France

75013 Paris

Attention: Director of Legal Affairsor to any other address that the intended recipients may indicate pursuant to the
provisions of this paragraph. All notices or communications shall either be delivered in
person in exchange for a signed release dated by the addressee, or sent by registered mail
with return receipt (in both cases with a copy sent by fax for information) and shall be
deemed to have been received on the date specified on the receipt by the addressee, in the
case of personal delivery, or shown on the receipt if sent by registered mail with return
receipt.11.2.
    
    Complete Agreement  This Memorandum of Agreement (including its annexes) expresses
the entire agreement between the Parties relative to its purpose and cancels and replaces any
prior written instrument in existence or that may have existed relative to same purpose.11.3.
    
    Waiver; Amendment  Any modification of this Memorandum of Agreement shall be
validly made only pursuant to the signing of an Amendment to this Memorandum of Agreement
signed by the duly qualified representatives of the Parties. Any waiver of one of the clauses
or provisions of this Memorandum of Agreement shall be set forth in a document signed by the
waiving Party making specific reference to the clause or provision which application is
waived, as well as to the circumstances of such waiver; this waiver may not be considered as
applicable to any other situation involving the same clause or provision, or to any other
clause or provision of this Memorandum of Agreement.11.4.
    
    Interpretation  Any reference made in this Memorandum of Agreement to the articles,
paragraphs or annexes must, unless otherwise indicated, be understood as being a reference to
the articles, the paragraphs or annexes of this Memorandum of Agreement. The preamble and the
annexes are an integral part of this Memorandum of Agreement.11.5.
    
    Independence of Clauses  In the event that a provision of this Memorandum of
Agreement is found to be null and void, in whole or in part, such invalidity shall not affect
the validity of the rest of the Memorandum of Agreement. In such
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event, the Parties shall, if possible, replace the unlawful provision with a lawful
provision corresponding to the spirit and purpose of the provision to be replaced11.6.
    
    Non-transferability  Neither of the Parties may transfer or assign to a Third Party
all of part of the rights and obligations it has under this Memorandum of Agreement without
the prior written agreement of the other Party, which may not be withheld without
substantiated reason, except (i) as regards SANOFI-SYNTHELABO, transfer within the context of
a partial contribution of assets or split including the entire branch of activity to which the
rights covered by this Memorandum of Agreement are attached or (ii) in case of a merger or
takeover, and (iii) as regards IDM, in case of a merger or takeover. SANOFI-SYNTHELABO may
also freely assign this Memorandum of Agreement, or all or part of the rights arising under
this Memorandum of Agreement, to any of its Affiliates whatsoever.11.7.
    
    Force majeure  Neither of the Parties may be deemed responsible if it is not in a
position to perform its contractual obligations due to the occurrence of a force majeure
event. By force majeure event is meant any unforeseeable and irresistible cause external to
said Party, including but not limited to: fires, explosions, natural disasters, earthquakes,
floods, abnormal atmospheric conditions, wars, civil disorders, injunctions and decisions of
the administrative, regulatory or government authorities.The Party faced with a force majeure event shall advise the other Party, as soon as
possible after the date of occurrence of the force majeure event, of the causes of any
delay and the necessary extensions and postponements in the deadlines for the performance
of this Memorandum of Agreement and shall use its best efforts to avoid and/or eliminate
any cause of delay in order to pursue the performance of this Memorandum of Agreement.11.8.
    
    Press Release  Each of the Parties agrees not to issue any press release whatsoever
relative to the transactions specified in this Memorandum of Agreement without the prior
written approval of the other Party as to the terms of such release.11.9.
    
    Reinforced Cooperation and Expertise Clause  This Memorandum of Agreement contains
clauses that make reference (i) to the reimbursement by one of the Parties of the costs and
expenses linked to the implementation of the development programs incurred by the other Party
and/or (ii) the determination of the full cost price of the Final Products. It is understood
that for the determination of the terms and procedures of calculation of the amount of these
elements, each of the Parties shall give the other Party total access to the information
needed for such determination and shall provide any substantiating document or additional
information necessary for such determination upon request.Absent agreement between the Parties on the terms and procedures of calculation and/or the
amount of any one of these elements within one (1) month of the date on which the
corresponding amount should normally be determined in execution of the corresponding
clause, these terms and procedures of calculation and/or amount(s) shall be determined by a
third party expert designated by the
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President of the International Chamber of Commerce at the request of the first acting
Party.The costs and fees of the third party expert shall be share equally by the Parties.
 ARTICLE XII  DISPUTES
   IDM
    
    
    
    SANOFI-SYNTHELABO/s/ Jean-Loup Romet-Lemonne
    
    
    
    /s/ Jean-Claude LeroyBy: Jean-Loup Romet-Lemonne
    
    
    
    By: Jean-Claude LeroyPresident
    
    
    
    Senior Vice President, Strategyand Business Development/s/ Bernard Brigonnet
    
    
    
    /s/ José FerrerBy: Bernard Brigonnet
    
    
    
    By: José FerrerManaging Director
    
    
    
    Director Legal Affairs Operations
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LIST OF ANNEXES  TO THE MEMORANDUM OF AGREEMENT
 ANNEX 3.2 (C):
    
    THIRD PARTIES RIGHTS TO IDMs INDUSTRIAL PROPERTY ON THE EXECUTION DATE OF THE
MEMORANDUM OF AGREEMENTANNEX 3.7:
    
    LIST OF ON-GOING DEVELOPMENT PROGRAMS ON THE EXECUTION DATE OF THE MEMORANDUM OF
AGREEMENTANNEX 4.1:
    
    DEFINITION OF THE EXECUTIVE COMMITTEE MISSIONSANNEX 6.5:
    
    RULES FOR ADJUSTMENT OF THE ADDITIONAL AMOUNT
REFERRED TO IN ARTICLE 6.5 OF THE MEMORANDUM
OF AGREEMENTANNEX 8.1:
    
    CONDITIONS APPLICABLE TO THE AMENDMENT TO THE 1999 AGREEMENTS
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Annex 3.2 (c)
 THIRD PARTIES RIGHTS TO IDMs INDUSTRIAL PROPERTY ON THE EXECUTION
DATE OF THE MEMORANDUM OF AGREEMENT
 1.
    
    IDM is the holder of and/or has full freedom to use all industrial property rights and
Know-How it requires for the implementation of its development programs, subject solely to
the obtaining of the product and process claims for patents which review procedures are not
completed;To IDMs knowledge, no element is reasonably likely to oppose the obtaining of these
claims.2.
    
    To IDMs knowledge, industrial property rights and Know-How referred to in paragraph 1
above are not dependent on any industrial property right held by any Third Party for which
IDM does not have a development and commercial exploitation license, subject only to the
exceptions specified below:
 (a)
    
    [. . . *** . . .](b)
    
    [. . . *** . . .]
 3.
    
    IDM may freely sublicense for the purpose of development and exclusive commercial
exploitation, the industrial property rights and Know-How which it can freely use as
licensee, subject only to the exceptions described below:
 (a)
    
    [. . .***. . .](b)
    
    [. . .***. . .]
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(c)
    
    [. . .***. . .](d)
    
    [. . .***. . .](e)
    
    [. . .***. . .]
 4.
    
    IDM has not entered into any commitment with any Third Party in application of which, in a
given territory and/or in any therapeutic indication whatsoever IDM (i)
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5.
    
    IDM guarantees the accuracy of the statements set forth in this Annex both (i) on the date of
execution of this Memorandum of Agreement and (ii) on the Effective Date of this Memorandum, these
statements being deemed as reiterated as of such date.
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Annex 3.7:
 LIST OF ON-GOING DEVELOPMENT PROGRAMS ON THE EXECUTION DATE OF THE MEMORANDUM OF AGREEMENT
 See attached table
 [. . .***. . .]
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[. . .***. . .]
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[. . .***. . .]
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Annex 4.1:
 DEFINITION OF THE EXECUTIVE COMMITTEEs MISSIONS
 
    
    To define the research and development strategy within the
context of the collaboration in the field of ex vivo cell therapies in humans.
    
    To approve, or not, each of the proposed Development Programs,
including the corresponding estimated timetable and budget, prior to
their submission to SANOFI-SYNTHELABO for a decision as to whether or
not it will exercise its Development Option right.
    
    To supervise the implementation of the Development Programs.
    
    To approve, or not, changes in the Development Programs.
    
    To approve, or not, based on the results of each Development Program,
continued implementation of such Development Program.
    
    To define missions of Joint Committees other than the Executive
Committee, pursuant to provisions of Article 4.1 of the Memorandum of
Agreement.
    
    To resolve any disputes arising in Joint Committees other than the
Executive Committee.
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Annex 6.5:
 RULES FOR DETERMINING THE ADDITIONAL AMOUNT
SPECIFIED IN ARTICLE 6.5 OF THE MEMORANDUM OF AGREEMENT
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Annex 8.:
 CONDITIONS APPLICABLE TO THE AMENDMENT  TO THE 1999 AGREEMENTS
  1.1.
    
    SANOFI-SYNTHELABO irrevocably waives the benefit of its exclusive marketing option right
under Article 2.1.2 of the Amendment, as such term is defined in the 1999 Agreements.1.2.
    
    The Parties agree to reduce from [. . . *** . . .] to [. . . *** . . .]
the royalty rate payable by IDM to SANOFI-SYNTHELABO under Article 4 of the Amendment as such
term is defined in the 1999 Agreements.1.3.
    
    Provisions for the exercise of Option 1 and Option 2 as defined in the 1999 Agreements are
amended as follows:1.3.1.
    
    For any Product within the meaning of the 1999 Agreements for which SANOFI-SYNTHELABO has
exercised a Development Option and for which the four following cumulative conditions have
been met:
 (i)
    
    One of the elements of the product consists of Dendritophages obtained using
IL-13,(ii)
    
    The Executive Committee has decided to undertake the corresponding Product
Development program in Phase III(iii)
    
    SANOFI-SYNTHELABO has not decided to permanently interrupt such Development
Program in application of Article 5.3 of the 2001 Memorandum of Agreement,(iv)
    
    Option 1 has not been exercised as of yet under the 1999 Agreements.
   1.3.2.
    
    For any Product under the 1999 Agreements for which SANOFI-SYNTHELABO has exercised a
Development Option and for which the three following cumulative conditions have been met :
 (i)
    
    One of the elements of the Product consists of Dendritophages obtained
using IL-13,
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(ii)
    
    SANOFI-SYNTHELABO has exercised its
Exclusive License Option right,(iii)
    
    Option 2 has not as yet been exercised
under the 1999 Agreements.
   1.4.
    
    More generally, in no way shall the provisions of this Memorandum of Agreement, including
this Annex, be able to be construed as modifying in any way whatsoever to the detriment of
SANOFI-SYNTHELABO, the provisions for the attribution and/or exercise by SANOFI-SYNTHELABO of
the warrants obtained in application of the 1999 Agreements, the latter remaining unchanged,
subject to the provisions of this Annex, in all their provisions, and SANOFI-SYNTHELABO shall
continue to benefit from same within the context of the development of any Product pursuant to
the 1999 Agreements, whether or not it has exercised as to that Product a Development Option
within the meaning of this Memorandum of Agreement.1.5.
    
    Pursuant to the provisions of Article 10.1 (a) of this Memorandum of Agreement, the
obligations of the Parties under that Memorandum are concluded subject to the condition
precedent of the approval, on terms reasonably satisfactory to SANOFI-SYNTHELABO, by the
Extraordinary Shareholders Meeting of IDM, of the modified terms and procedures of the
provisions for exercise of BSA 1 and 2 warrants pursuant to the provisions of paragraph 1.3
above.
 
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