Overview Safety Study of Continued Enzalutamide Treatment In Prostate Cancer Patients Status: Active, not recruiting Trial end date: 2024-05-31 Target enrollment: Participant gender: Summary The purpose of this study is to determine if continued treatment with Enzalutamide is effective in patients with metastatic prostate cancer. Phase: Phase 4 Details Lead Sponsor: Medivation, Inc.PfizerCollaborators: Astellas Pharma IncMedivation is now a wholly owned subsidiary of Pfizer Inc.Medivation LLC, a wholly owned subsidiary of Pfizer Inc.Treatments: Abiraterone AcetatePrednisolonePrednisone