Ph. 2 Sorafenib + Protracted Temozolomide in Recurrent GBM

STUDY ACTIVITIES AND POPULATION GROUP: This is an open-label, non-randomized, single center phase 2 trial. A treatment cycle will consist of 4 weeks of therapy. Sorafenib will be administered at a set dose of 400 mg (2 x 200 mg tablets) twice daily, without food (at least 1 hour before or 2 hours after eating). Temozolomide will be administered at a set dose of 50 mg/m2 once daily without food (at least 1 hour before or 2 hours after eating). Thirty-two (32) patients will be enrolled in this single-stage study. DATA ANALYSIS AND RISK/SAFETY ISSUES: After 16 patients with recurrent GBM are treated, an interim analysis will be conducted. If 6 or more patients have experienced unacceptable toxicity, accrual of patients in this patient group will be terminated. Otherwise, patient accrual will continue. If 9 or more of the total 32 patients experience unacceptable toxicity, the treatment regimen will be considered to have an unacceptable toxicity profile. The type I and II error rates associated with this testing are 0.053 and 0.053, respectively.