Keryx Biopharmaceuticals Announces Poster Presentation Highlighting Preclinical Activity of Single-Agent KRX-0401 (Perifosine) at 2010 American Association for Cancer Research Annual Meeting

NEW YORK, April 20 /PRNewswire-FirstCall/ -- Keryx Biopharmaceuticals, Inc. today announced that preclinical data in neuroblastoma for KRX-0401 (perifosine), the Company’s novel, potentially first-in-class, oral anti-cancer agent that inhibits Akt activation in the phosphoinositide 3-kinase (PI3K) pathway, will be presented at the 101st Annual Meeting of the American Association for Cancer Research (AACR), currently being held in Washington, DC.

Data demonstrating that single agent perifosine targets activation of Akt in neuroblastoma cells and xenografts, significantly inhibited tumor growth in vivo and improved the survival of mice bearing neuroblastoma tumors was originally presented at the 2009 AACR annual meeting by the same group from the Pediatric Oncology Branch of the National Institute of Health.

A copy of the above abstract is currently available and can be viewed on-line through the AACR 2010 Meeting website at: http://www.aacr.org/home/scientists/meetings--workshops/aacr-101st-annual-meeting-2010/abstracts.aspx.

KRX-0401 (perifosine) is in-licensed by Keryx from Aeterna Zentaris Inc. in the United States, Canada and Mexico.

Cautionary Statement

Some of the statements included in this press release, particularly those anticipating future clinical trials and business prospects for KRX-0401 (perifosine), may be forward-looking statements that involve a number of risks and uncertainties. For those statements, we claim the protection of the safe harbor for forward-looking statements contained in the Private Securities Litigation Reform Act of 1995. Among the factors that could cause our actual results to differ materially are the following: our ability to successfully and cost-effectively complete clinical trials for KRX-0401; the risk that the data (both safety and efficacy) from ongoing clinical trials will not coincide with the data analyses from prior pre-clinical and clinical trials previously reported by the Company; and other risk factors identified from time to time in our reports filed with the Securities and Exchange Commission. Any forward-looking statements set forth in this press release speak only as of the date of this press release. We do not undertake to update any of these forward-looking statements to reflect events or circumstances that occur after the date hereof. This press release and prior releases are available at http://www.keryx.com. The information found on our website and the AACR website is not incorporated by reference into this press release and is included for reference purposes only.

Keryx Biopharmaceuticals, Inc.

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