Rucaparib Recruiting Phase 2 Trials for Prostate Carcinoma Metastatic in the Bone / PSA Level Greater Than or Equal to Two / Homologous Recombination Deficiency / Castration Levels of Testosterone / PSA Progression / Stage IV Prostate Adenocarcinoma AJCC v7 / brca2 Gene Mutation / ATM Gene Mutation / BRCA1 Gene Mutation / Castration-Resistant Prostate Carcinoma Treatment