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Exhibit 10.36
[ENTREMED Letterhead]
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Affymax, Inc.
4001 Miranda Avenue
Palo Alto, California 94304
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February 23, 2007
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Attn:
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Chris Dammann
VP, Business Development
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Re:
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Seventh Extension of Letter
Agreement
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Dear Chris:
I
am writing with reference to the Letter Agreement between Affymax,
Inc. (“Affymax”) and EntreMed, Inc.
(“EntreMed”) dated as of September 20, 2004
(together with each of the exhibits thereto, as amended, the
“Letter Agreement”) and the related First Extension
Letter dated as of August 23, 2005 between Affymax and
EntreMed (the “First Extension Letter”), pursuant to
which EntreMed and Affymax agreed to extend the Term of the Letter
Agreement to December 31, 2005, and the subsequent Second
Extension Letter dated as of December 19, 2005 between Affymax
and EntreMed (the “Second Extension Letter”), pursuant
to which EntreMed and Affymax agreed to further extend the Term of
the Letter Agreement to February 28, 2006, and the subsequent
Third Extension Letter dated as of February 28, 2006 between
Affymax and EntreMed (the “Third Extension Letter”),
pursuant to which EntreMed and Affymax agreed to further extend the
Term of the Letter Agreement to May 31, 2006, and the
su
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