The purpose of this study is to evaluate safety and efficacy of abiraterone acetate plus
leuprolide acetate and prednisone, versus leuprolide acetate alone in male participants with
prostate cancer (a disease in which cells in the prostate gland become abnormal and start to
grow uncontrollably, forming tumors) who are suitable candidates for prostatectomy (surgery
to remove all or part of the prostate gland).