Randomized, Double-Blind, Placebo-Controlled, Phase II Study Of Intravenous CCI-779 Administered Weekly To Patients With Androgen-Independent Prostate Cancer

OBJECTIVES: I. Determine the safety of CCI-779 in patients with androgen-independent prostate cancer. II. Determine the effects of CCI-779 on prostate-specific antigen levels in these patients. III. Assess the pharmacokinetic parameters of CCI-779 in these patients. IV. Assess the possible pharmacodynamic relationship of CCI-779 with clinical response in these patients. V. Determine the impact of CCI-779 on the quality of life in these patients.

OUTLINE: This is a randomized, double-blind, placebo-controlled, multicenter study. Patients are randomized to 1 of 4 arms. Arm I: Patients receive low-dose CCI-779 IV over 30 minutes weekly. Arm II: Patients receive high-dose CCI-779 IV over 30 minutes weekly. Arm III: Patients receive low-dose placebo IV over 30 minutes weekly. Arm IV: Patients receive high-dose placebo IV over 30 minutes weekly. Treatment continues in the absence of disease progression or unacceptable toxicity. Patients who develop progressive disease while receiving placebo may cross over to the equivalent dose of CCI-779. Quality of life is assessed at baseline; at weeks 4, 8, 12, 24, and 36; and at final/cross-over visit. Patients are followed every 3 months.

PROJECTED ACCRUAL: Approximately 150 patients will be accrued for this study.