AVALON PHARMACEUTICALS INC Uncategorized Contracts & Agreements

AMENDMENT NO. 2 (Filed With SEC on April 2, 2009)

AMENDMENT NO. 1 (Filed With SEC on January 14, 2009)

AVALON PHARMACEUTICALS, INC. (Filed With SEC on October 30, 2008)

Amendment No. 1 to Rights Agreement (Filed With SEC on October 30, 2008)

FORM OF CONTINGENT VALUE RIGHTS AGREEMENT (Filed With SEC on October 30, 2008)

[LETTERHEAD] [LOGO] (Filed With SEC on May 4, 2007)

[LETTERHEAD] [LOGO] May 2, 2007 (Filed With SEC on May 4, 2007)

RIGHTS AGREEMENT Dated as of April 26, 2007 between AVALON PHARMACEUTICALS, INC. and AMERICAN STOCK TRANSFER & TRUST COMPANY 1 TABLE OF CONTENTS (Filed With SEC on April 30, 2007)

Exhibit 10.11B (Filed With SEC on March 30, 2007)

Exhibit 10.10 (B) (Filed With SEC on March 30, 2007)

Exhibit 10.9B (Filed With SEC on March 30, 2007)

Exhibit 10.8B (Filed With SEC on March 30, 2007)

Exhibit 10.7B (Filed With SEC on March 30, 2007)

Exhibit 10.6B (Filed With SEC on March 30, 2007)

Exhibit 10.1 (Filed With SEC on August 2, 2006)

Pilot Study Agreement (Filed With SEC on September 14, 2005)

Avalon Pharmaceuticals, Inc. (Filed With SEC on September 9, 2005)

develop our anticancer therapeutic candidates (Filed With SEC on June 23, 2005)

develop our anticancer therapeutic candidates (Filed With SEC on May 3, 2005)

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AVALON PHARMACEUTICALS INC Uncategorized Contracts & Agreements