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.roneverhart.com/BenQ-Zowie-XL2546X-24-5-FHD-Fast-TN-Gaming-Monitor-240Hz-DyAc-2-Technology-Dual-Backlight-Design-Auto-Game-Mode-HDMI-/