Pfizer/Astellas sNDA Accepted for Xtandi
FDA has accepted for priority review a Pfizer and Astellas Pharma supplemental NDA for Xtandi (enzalutamide) for an expanded indication to include men with non-metastatic castration-resistant prostate cancer (CRPC). The submission is based on data from the Phase 3 PROSPER trial. The agency has set a user fee review action target date in July. Xtandi is currently indicated for treating patients with metastatic CRPC.
The company says the PROSPER trial evaluated Xtandi plus androgen deprivation therapy (ADT) versus ADT alone in 1,401 patients with non-metastatic CRPC. The study met its primary endpoint, “demonstrating that the use of XTANDI plus ADT significantly reduced the risk of developing metastasis or death compared to ADT alone,” it says.