827PClinical outcome with radium-223 (Ra-223) in patients (pts) previously treated with abiraterone (Abi) or enzalutamide (Enza): A retrospective study of real-world (RW) data from pts with metastatic castration-resistant prostate cancer (mCRPC). (23rd October 2018) - Higano, C S; Tombal, B; Miller, K; Saad, F; Sartor, O; Tangirala, K; Jiao, X; Kalinovsky, J; Sternberg, C N