A Study of Nivolumab or Nivolumab Plus Experimental Medication BMS-986205 With or Without Bacillus Calumette-Guerin (BCG) in BCG Unresponsive Bladder Cancer That Has Not Invaded Into the Muscle Wall of the Bladder

Number of Participants Immune-Mediated Adverse Events (IMAEs)

IMAEs are AEs consistent with an immune-mediated mechanism or immune-mediated component for which non-inflammatory etiologies (eg, infection or tumor progression) have been ruled out. IMAEs can include events with an alternate etiology which were exacerbated by the induction of autoimmunity IMAEs are reported using the National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) version 4.03.

Time frame: From first dose to 30 days post last dose of study treatment (an average of 45 weeks up to approximately 64 weeks)

Number of Participants Who Died

Number of participants who died.

Time frame: From first dose to 100 days post last dose of study treatment (an average of 45 weeks up to approximately 74 weeks)

Number of Participants With Specific Liver Laboratory Abnormalities

On-treatment laboratory evaluations are evaluations taken after the day (and time, if collected and not missing) of first dose of study treatment. For participants who are off study treatment, evaluations were within a safety window of 30 days after the last dose of study treatment. ALT = Alanine Aminotransferase AST = Aspartate Aminotransferase ULN = Upper Limit of Normal.

Time frame: From first dose to 30 days post last dose of study treatment (an average of 45 weeks up to approximately 64 weeks)

Number of Participants With Specific Thyroid Laboratory Abnormalities

On-treatment laboratory evaluations are evaluations taken after the day (and time, if collected and not missing) of first dose of study treatment. For participants who are off study treatment, evaluations were within a safety window of 30 days after the last dose of study treatment. TSH = Thyroid Stimulating Hormone LLN = Lower Limit of Normal ULN = Upper Limit of Normal

Time frame: From first dose to 30 days post last dose of study treatment (an average of 45 weeks up to approximately 64 weeks)

Number of Participants With Changes From Baseline Laboratory Values

On-study laboratory parameters include hematology, chemistry, liver function, and renal function. On-study laboratory evaluations are evaluations taken after the day (and time, if collected and not missing) of first dose of study treatment. For participants who are off study treatment, evaluations were within a safety window of 30 days after the last dose of study treatment. On-study lab parameters are reported using the National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) version 4.03.

Time frame: From baseline to 30 days post last dose of study treatment (an average of 45 weeks up to approximately 64 weeks)

Number of Participants With Adverse Events (AEs) by Anti-Drug- Antibody (ADA) Status

An Adverse Event (AE) is defined as any new untoward medical occurrence or worsening of a preexisting medical condition in a clinical investigation participant administered study treatment and that does not necessarily have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign (such as an abnormal laboratory finding), symptom, or disease temporally associated with the use of study treatment, whether or not considered related to the study treatment. An Anti-drug antibody (ADA) is defined as biologic drug-reactive antibody, including pre-existing host antibodies that are cross-reactive with the administered biologic drug. An ADA-positive participant has at least one ADA positive-sample relative to baseline at any time after initiation of treatment An ADA-negative participant doesn't not have an ADA-positive sample after the initiation of treatment.

Time frame: From first dose to 30 days post last dose of study treatment (an average of 45 weeks up to approximately 64 weeks)

Number of Participants With Serious Adverse Events (SAEs) by Anti-Drug- Antibody (ADA) Status

Serious Adverse Event (SAE) is defined as any untoward medical occurrence that, at any dose: * Results in death * Is life-threatening (an event in which the participant was at risk of death at the time of the event; it does not refer to an event which hypothetically might have caused death if it were more severe) * Requires inpatient hospitalization or causes prolongation of existing hospitalization. An Anti-drug antibody (ADA) is defined as biologic drug-reactive antibody, including pre-existing host antibodies that are cross-reactive with the administered biologic drug. An ADA-positive participant has at least one ADA positive-sample relative to baseline at any time after initiation of treatment An ADA-negative participant doesn't not have an ADA-positive sample after the initiation of treatment.

Time frame: From first dose to 30 days post last dose of study treatment (an average of 45 weeks up to approximately 64 weeks)