Study to Assess Abivertinib in Combination With Abiraterone in Metastatic Castration Resistant Prostate Cancer

This is a phase 2, multicenter, open-label study to evaluate the efficacy of abivertinib with abiraterone in patients with metastatic castration-resistant prostate cancer via assessment of 6-month radiographic progression-free survival. The study will include two cohorts, abiraterone-naive and abiraterone-progressing.