( -- Median time to pain progression is 6...)Additional Efficacy Data from Satraplatin SPARC Phase 3,Investigational Trial Presented at Annual Meeting of American,Urological Association,Health

MARTINSRIED/MUNICH, Germany, May 21, 2007 /PRNewswire-FirstCall/ -- PRINCETON, N.J., and BOULDER, Colo. -- GPC Biotech AG and Pharmion Corporation today announced the presentation of additional data from the double-blind, randomized satraplatin Phase 3 registrational trial, the SPARC trial (Satraplatin and Prednisone Against Refractory Cancer). The data are being presented today at the Annual Meeting of the American Urological Association (AUA) in Anaheim, California. The SPARC trial is evaluating satraplatin plus prednisone versus placebo plus prednisone in 950 patients with hormone-refractory prostate cancer (HRPC) whose prior chemotherapy has failed. An NDA for satraplatin is currently under priority review by the U.S. FDA.

"Patients with metastatic hormone-refractory prostate cancer frequently suffer from substantial pain associated with bone metastases. Thus, pain control for these patients constitutes a major challenge and is an important goal when caring for them," said Oliver Sartor, M.D., Lank Center for Genitourinary Oncology, Dana Farber Cancer Institute, Associate Professor at Harvard Medical School, Boston, MA, and principal investigator of the SPARC trial, who is presenting the satraplatin data today. "In addition to the very encouraging results for progression-free survival demonstrating a 33% lower risk of progression compared to control, it is exciting to see that the SPARC trial results show that treatment with satraplatin also results in a statistically significant improvement in time to pain progression."

Data presented today showed that the median time to pain progression was 66.1 weeks for the satraplatin arm compared with 22.3 weeks for
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