Astellas and Pfizer's Xtandi Meets Primary Endpoint in Ph III Trial of Metastatic Prostate Cancer

Astellas Pharma Inc. (TSE: 4503, President and CEO: Kenji Yasukawa, Ph.D., “Astellas”) and Pfizer Inc. (NYSE: PFE) today announced that the Phase 3 ARCHES trial evaluating Xtandi (enzalutamide) plus androgen deprivation therapy (ADT) in men with metastatic hormone-sensitive prostate cancer (mHSPC) met its primary endpoint, significantly improving radiographic progression-free survival (rPFS) versus ADT alone.