AE=any new unfavorable symptom, sign, or disease or worsening of a preexisting condition that may not have a causal relationship with treatment. SAE=a medical event that at any dose results in death, persistent or significant disability/incapacity, or drug dependency/abuse; is life-threatening, an important medical event, or a congenital anomaly/birth defect; or requires or prolongs hospitalization. Treatment-related=having certain, probable, possible, or missing relationship to study drug. Grade (Gr) 1=Mild, Gr 2=Moderate, Gr 3=Severe, Gr 4= Potentially Life-threatening or disabling. Severe=All Grade 3 or 4 events. Death=during the study and up to 28 days past study discontinuation. AEs graded using the Cancer Therapy Evaluation Program Common Terminology Criteria for Adverse Events (CTCAE), Version 3.0. irAEs=unknown etiology, associated with study drug and consistent with an immune phenomenon. DLT: ≥Gr 3 AE(s) or lab abnormality without alternative explanation other than drug.

Nivolumab in human serum was assayed during the period of known analyte stability and reported as final data for this study by PPD® (Richmond, Virginia) using a cross-validated enzyme-linked immunosorbent assay (ELISA) method. For the single dose (Day 1), serum concentrations of nivolumab were assessed: prior to dosing, at 30 minutes (during dosing), immediately post-dose, and 30 minutes post-infusion end time; at 1, 2, 4, 6, 8, 24, 48, and 72 hours post-infusion end time; and on Days 8, 15, 22, 29, 43, 57, 71, and 85. The pharmacokinetic (PK) parameter of Cmax was measured in micrograms per milliliter (µg/mL).

Nivolumab in human serum was assayed during the period of known analyte stability and reported as final data for this study by PPD® (Richmond, Virginia) using a cross-validated ELISA method. For the single dose (Day 1), serum concentrations of nivolumab were assessed: prior to dosing, at 30 minutes (during dosing), immediately post-dose, and 30 minutes post-infusion end time; at 1, 2, 4, 6, 8, 24, 48, and 72 hours post-infusion end time; and on Days 8, 15, 22, 29, 43, 57, 71, and 85. The PK parameter of Tmax was measured in hours (h).

AUC(0-T): Area under the concentration-time curve from the time of dosing to the time of the last observation. AUC(INF): Area under the curve from the time of dosing extrapolated to infinity. Nivolumab in human serum was assayed during the period of known analyte stability and reported as final data for this study by PPD® (Richmond, Virginia) using a cross-validated ELISA method. For the single dose (Day 1), serum concentrations of nivolumab were assessed: prior to dosing, at 30 minutes (during dosing), immediately post-dose, and 30 minutes post-infusion end time; at 1, 2, 4, 6, 8, 24, 48, and 72 hours post-infusion end time; and on Days 8, 15, 22, 29, 43, 57, 71, and 85. The PK parameters of AUC(0-T) and AUC (INF) were measured in micrograms\*hours per milliliter (µg\*h/mL).

Nivolumab in human serum was assayed during the period of known analyte stability and reported as final data for this study by PPD® (Richmond, Virginia) using a cross-validated ELISA method. For the single dose (Day 1), serum concentrations of nivolumab were assessed: prior to dosing, at 30 minutes (during dosing), immediately post-dose, and 30 minutes post-infusion end time; at 1, 2, 4, 6, 8, 24, 48, and 72 hours post-infusion end time; and on Days 8, 15, 22, 29, 43, 57, 71, and 85. The PK parameter of T-HALF was measured in days.

Nivolumab in human serum was assayed during the period of known analyte stability and reported as final data for this study by PPD® (Richmond, Virginia) using a cross-validated ELISA method. For the single dose (Day 1), serum concentrations of nivolumab were assessed: prior to dosing, at 30 minutes (during dosing), immediately post-dose, and 30 minutes post-infusion end time; at 1, 2, 4, 6, 8, 24, 48, and 72 hours post-infusion end time; and on Days 8, 15, 22, 29, 43, 57, 71, and 85. The PK parameter of CLT was measured in milliliters per hour per kilogram body weight (mL/h/kg).

Nivolumab in human serum was assayed during the period of known analyte stability and reported as final data for this study by PPD® (Richmond, Virginia) using a cross-validated ELISA method. For the single dose (Day 1), serum concentrations of nivolumab were assessed: prior to dosing, at 30 minutes (during dosing), immediately post-dose, and 30 minutes post-infusion end time; at 1, 2, 4, 6, 8, 24, 48, and 72 hours post-infusion end time; and on Days 8, 15, 22, 29, 43, 57, 71, and 85. The PK parameter of Vz was measured in milliliters per kilogram of body weight (mL/kg).

The Best Overall Response Rate (BORR) was defined as the number of participants who had a confirmed complete response (CR) or partial response (PR) during the study divided by the total number of participants evaluated. Response was based on tumor assessment for both target and non-target lesions using: Clinical examination; Chest X-ray; Computed Tomography and Magnetic Resonance Imaging; Bone scan; Ultrasound. Per National Cancer Institute Response Evaluation Criteria in Solid Tumors (RECIST) v1.0, best overall response (BOR) for tumors was confirmed CR or PR. CR=disappearance of all target and non-target lesions; PR=at least a 30% decrease in the sum of the longest diameter of target lesions, taking as reference the screening sum longest diameter. Confidence intervals (CIs) were computed using the Clopper and Pearson method.

The PSA response rate was defined as the number of participants who had at least a 50% decrease of the PSA value from the PSA reference value divided by the total number of participants evaluated (percent of participants). PSA reference value was the PSA concentration measured immediately prior to dosing on Day 1. PSA response was assessed using the Recommendations from the National Cancer Institute Prostate-Specific Antigen Working Group. A PSA response had to be confirmed at least 4 weeks after first response. 95% exact CIs were computed using the Clopper and Pearson method.