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Treatment for Chronic Myelogenous Leukemia

Update: Synribo (omacetaxine) Now FDA Approved - October 26, 2012

U.S. Food and Drug Administration (FDA) Sets 22 March for Oncologic Drugs Advisory Committee (ODAC) Meeting to Review Omapro

MELBOURNE, Australia & MENLO PARK, Calif.-- Mar 2, 2010 - ChemGenex Pharmaceuticals Limited announced today that the U.S. Food and Drug Administration (FDA) has rescheduled the previously postponed Oncologic Drugs Advisory Committee (ODAC) meeting to 22 March 2010.

The ODAC meeting will consider ChemGenex's application for Omapro (omacetaxine mepesuccinate) for the treatment of adults with chronic myeloid leukemia (CML) who have failed prior therapy with imatinib and who have developed the Bcr-Abl T315I mutation.

As an independent panel of experts the role of the ODAC committee is to review safety and efficacy data and make recommendations to the FDA concerning approval.

"The ODAC meeting is a significant milestone in the review process for Omapro. Our team is well-prepared and we are looking forward to presenting to the ODAC panel," said Greg Collier, PhD, CEO and Managing Director of ChemGenex.

About ChemGenex Pharmaceuticals Limited

ChemGenex is an oncology focused biopharmaceutical company developing small molecules with new mechanisms of action to treat malignancies with significant unmet medical needs. A New Drug Application has been accepted by the U.S. Food and Drug Administration and a Marketing Authorisation Application has been validated by the European Medicines Agency for CML patients who have failed imatinib therapy and have the Bcr-Abl T315I mutation. ChemGenex has established a corporate alliance with Hospira to develop and commercialize omacetaxine in Europe, the Middle East and parts of Africa, and is seeking to establish commercial partnerships in the rest of the world. ChemGenex plans to commercialize omacetaxine itself in North America. ChemGenex trades on the Australian Stock Exchange under the symbol "CXS". For additional information on ChemGenex Pharmaceuticals, please visit the company's website at

Omapro™ is a trademark of ChemGenex Pharmaceuticals Limited.

Safe Harbor Statement

Certain statements made herein (including for this purpose sites to which a hyperlink has been provided) that use the words "estimate", "project", "intend", "expect", "believe" and similar expressions are intended to identify forward-looking statements within the meaning of the US Private Securities Litigation Reform Act of 1995. These forward-looking statements involve known and unknown risks and uncertainties which could cause the actual results, performance or achievements of the company to be materially different from those which may be expressed or implied by such statements, including, among others, risks or uncertainties associated with the development of the company's technology, the ability to successfully market products in the clinical pipeline, the ability to advance promising therapeutics through clinical trials, the ability to establish our fully integrated technologies, the ability to enter into additional collaborations and strategic alliances and expand current collaborations and obtain milestone payments, the suitability of internally discovered genes for drug development, the ability of the company to meet its financial requirements, the ability of the company to protect its proprietary technology, potential limitations on the company's technology, the market for the company's products, government regulation in Australia and the United States, changes in tax and other laws, changes in competition and the loss of key personnel. These statements are based on our management's current expectations and are subject to a number of uncertainties that could change the results described in the forward-looking statements. Investors should be aware that there are no assurances that results will not differ from those projected.

Contact: ChemGenex Information:
ChemGenex Pharmaceuticals Limited
Dr. Greg Collier
CEO and Managing Director
Cell (Australia): +61 419 897501
Cell (USA): +1 650-200-8145
Investor Relations – Australia:
Buchan Consulting
Kyahn Williamson, +61 (0)3 9866 4722
Cell: + 61 (0)401 018 828
Investor Relations – USA:
Blueprint Life Science Group
Remy Bernarda, +1-415-375-3340 ext. 2022
Cell: +1-415-203-6386

Posted: March 2010

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