Keryx Biopharmaceuticals Announces PDUFA Goal Date for Zerenex(TM) New Drug Application

NEW YORK, Oct. 21, 2013 (GLOBE NEWSWIRE) -- Keryx Biopharmaceuticals, Inc. (Nasdaq:KERX) announced today that the U.S. Food and Drug Administration (FDA) assigned a Prescription Drug User Fee Act (PDUFA) goal date of June 7, 2014, for the Company's New Drug Application (NDA) for Zerenex^TM (ferric citrate coordination complex), the Company's drug candidate for the treatment of elevated serum phosphorus levels, or hyperphosphatemia, in patients with chronic kidney disease (CKD) on dialysis.

About Keryx Biopharmaceuticals, Inc.

Keryx Biopharmaceuticals is focused on the acquisition, development and commercialization of medically important pharmaceutical products for the treatment of renal disease. Keryx is developing Zerenex (ferric citrate coordination complex), an oral, ferric iron-based compound that has the capacity to bind to phosphate and form non-absorbable complexes. Keryx has completed a U.S.-based Phase 3 clinical program for Zerenex for the treatment of hyperphosphatemia (elevated phosphate levels) in patients with chronic kidney disease on dialysis, conducted pursuant to a Special Protocol Assessment (SPA) agreement with the Food and Drug Administration (FDA), and the Company's New Drug Application is currently under review by the FDA. The Marketing Authorization Application filing with the European Medicines Agency (EMA) is pending submission.
Zerenex is also in Phase 2 development in the U.S. for the management of elevated phosphorus and iron deficiency in anemic patients with Stages 3 to 5 non-dialysis dependent chronic kidney disease. In addition, Keryx's Japanese partner, Japan Tobacco Inc. and Torii Pharmaceutical Co., Ltd. has filed its New Drug Application for marketing approval of ferric citrate in Japan for the treatment of hyperphosphatemia in patients with chronic kidney disease. Keryx is headquartered in New York City.

Cautionary Statement



Some of the statements included in this press release, particularly those relating to the results of clinical trials, the clinical benefits to be derived from Zerenex (ferric citrate coordination complex), regulatory submissions and the timing of any such review, approvals, the commercial opportunity and competitive positioning, and any business prospects for Zerenex, 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:
acceptance of the NDA filing represents only a preliminary evaluation of the application and is not indicative of deficiencies that may be identified during the FDA's review; a PDUFA goal date is subject to change and does not guarantee that the review of the NDA will be completed on a timely basis; the risk that the FDA, EMA, and/or the Japanese Ministry of Health, Labour and Welfare ultimately deny approval of the U.S. NDA, MAA and/or Japanese NDA, respectively; the risk that SPAs are not a guarantee that the FDA will ultimately approve a product candidate following filing acceptance; whether the FDA and EMA will concur with our interpretation of our Phase 3 study results, supportive data, or the conduct of the studies; whether, Zerenex, if approved,
will be successfully launched and marketed; 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 FDA website, is not incorporated by reference into this press release and is included for reference purposes only.

CONTACT: Lauren Fischer

Director - Investor Relations

Keryx Biopharmaceuticals, Inc.

Tel: 212.531.5965

E-mail: [email protected]

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