Disease progression patterns and association of prostate-specific antigen level with risk of progression in nonmetastatic castration-resistant prostate cancer

Darolutamide plus ADT reduced the risk of metastatic progression and improved overall survival versus placebo plus ADT without changing patterns of disease progression through Month 24. Metastasis occurred without PSA progression in approximately 30% of metastatic events overall. Undetectable PSA with darolutamide was associated with reduced radiological progression that was maintained over time. These results highlight the importance of both imaging and PSA monitoring to identify disease progression in patients with nmCRPC.