PURPOSE: Complete androgen blockade (CAB) does not prolong overall survival (OS) in patients with castration refractory prostate cancer (CRPC). Although there is variable clinical benefit with second-line hormone manipulation. we do not know which patients might benefit the most. OBJECTIVES: To identify clinical predictors of benefit of complete androgen blockade. https://www.lightemupsequences.com/mega-super-EB10-3612X24-Elegant-White-Assembled-36x12x24-Wall-Cabinet-super-grab/