(UroToday.com) The field of advanced prostate cancer has rapidly progressed over the past 15 years. Prior to the publication of TAX-327, there were no proven life-prolonging therapies for patients with metastatic castration-resistant prostate cancer (mCRPC). Since that time, there have been many new agents that have proven survival benefits including taxane-based chemotherapy, agents targeting the androgen axis, and bone-targeting agents. The optimal sequencing of these agents is somewhat unclear. Thus, to inform these decisions, Dr. Oliver Sartor and colleagues assessed real-life clinical outcomes in patients with mCRPC treated in the USA who received sequential first-line (1L)/second-line (2L) NAH (abiraterone/enzalutamide or enzalutamide/abiraterone) or switched to a different mechanism of action (alpha-emitter Ra-223) after progression on 1L NAH as presented in a plenary abstract presentation in the Poster Highlights Session: Prostate Cancer session at the 2021 ASCO GU Cancers Symposium.