A Randomized, Double-blind, Phase 3 Efficacy Trial of PROSTVAC-V/F +/- GM-CSF in Men With Asymptomatic or Minimally Symptomatic Metastatic Castrate-Resistant Prostate Cancer

BNIT-PRV-301 is a randomized, placebo-controlled, multi-center, global Phase 3 efficacy trial of PROSTVAC in men with asymptomatic or minimally symptomatic, metastatic, castrate-resistant prostate cancer. It is a 3-arm study and will evaluate overall survival in two separate comparisons, PROSTVAC plus adjuvant dose GM-CSF versus controls, and PROSTVAC without GM-CSF versus controls. Patients will be randomized with equal probability into one of three double-blind arms. The intended interventions for randomized patients are: 1. (Arm V+G) PROSTVAC-V/F plus adjuvant dose GM-CSF 2. (Arm V) PROSTVAC-V/F plus GM-CSF placebo 3. (Arm P) Double placebo