A phase II single-arm study of pembrolizumab with enzalutamide in men with metastatic castration-resistant prostate cancer progressing on enzalutamide alone ============================================================================================================================================================ * Julie N Graff * Tomasz M Beer * Joshi J Alumkal * Rachel E Slottke * William L Redmond * George V Thomas * Reid F Thompson * Mary A Wood * Yoshinobu Koguchi * Yiyi Chen * Emile Latour * Raymond C Bergan * Charles G Drake * Amy E Moran