Expanded Access Study of Satraplatin Plus Prednisone in Patients With Hormone Refractory Prostate Cancer (HRPC)

\*\*\*\*\*UPDATE\*\*\*\*\* On October 30th, 2007 GPC Biotech announced topline overall survival results for the Phase III trial in hormone refractory prostate cancer-Satraplatin and Prednisone Against Refractory Cancer (SPARC) trial. The trial evaluated satraplatin plus prednisone versus placebo plus prednisone as a second-line treatment in 950 patients with hormone-refractory prostate cancer (HRPC). The companies reported that the trial did not achieve the endpoint of overall survival (p=0.80, stratified log rank analysis). The median was 61.3 weeks for the satraplatin arm compared to 61.4 weeks for the control group and the hazard ratio was 0.97 (95% CI: 0.83, 1.13). The companies are currently conducting pre-specified subset analyses. Satraplatin is a member of the platinum-based class of chemotherapy drugs. Platinum-based drugs have been clinically proven to be one of the most effective classes of anticancer therapies. Unlike the currently marketed platinum-based drugs, satraplatin can be given orally.