An Investigational Immunotherapy Study of Nivolumab in Combination With Rucaparib, Docetaxel, or Enzalutamide in Metastatic Castration-resistant Prostate Cancer

Inclusion Criteria:

1. Histologic confirmation of adenocarcinoma of the prostate
2. Evidence of stage IV disease on previous bone, CT, and/or MRI scan
3. Ongoing androgen deprivation therapy (ADT) with a gonadotropin-releasing hormone (GnRH) analogue or bilateral orchiectomy
4. Mandatory plasma and fresh or archival tumor tissue must be submitted

Exclusion Criteria:

1. Prior malignancy active within the previous 3 years except for locally curable cancers that have been apparently cured, such as basal or squamous cell skin cancer, superficial bladder cancer, or carcinoma in situ of the breast
2. Participants with active brain metastases
3. Participants must have recovered from the effects of major surgery requiring general anesthesia or significant traumatic injury at least 14 days before treatment arm assignment

Other protocol defined inclusion/exclusion criteria could apply