A Study to Evaluate the Safety of Nivolumab and Ipilimumab in Subjects With Previously Untreated Advanced or Metastatic Renal Cell Cancer

Number of participants with IMAEs in the following categories: Skin, Endocrine, Gastrointestinal, Hepatic, Renal, Pulmonary and Hypersensitivity

Number of participants with IMAEs in the following categories: Skin, Endocrine, Gastrointestinal, Hepatic, Renal, Pulmonary and Hypersensitivity

Time to onset is defined as the duration of time in weeks from the first dosing to the immune modulating adverse event onset date. Participants experiencing all high grade (CTCAE v4 Grade 3-4 and Grade 5) Immune Mediated Adverse Events (IMAEs) in the following categories will be included: Skin, Endocrine, Gastrointestinal, Hepatic, Renal, Pulmonary and Hypersensitivity. IMAEs are specific events (or groups of preferred terms describing specific events) considered as potential immune-mediated events by investigator, that meet the following definition: (1) those occurring within 100 days of the last dose (2) regardless of causality (3) with no clear alternate etiology based on investigator assessment, or with an immune-mediated component and (4) treated with immune-modulating medication. Grade 3= Severe reaction, Grade 4 = Life-threatening, Grade 5 = Death

Time to resolution is defined as the longest time from IMAE onset date to complete resolution or improvement to the grade at baseline experienced by the participant (the IMAE end date). Participants experiencing all high grade (CTCAE v4 Grade 3-4 and Grade 5) Immune Mediated Adverse Events (IMAEs) in the following categories will be included: Skin, Endocrine, Gastrointestinal, Hepatic, Renal, Pulmonary and Hypersensitivity. IMAEs are specific events (or groups of preferred terms describing specific events) considered as potential immune-mediated events by investigator, that meet the following definition: (1) those occurring within 100 days of the last dose (2) regardless of causality (3) with no clear alternate etiology based on investigator assessment, or with an immune-mediated component and (4) treated with immune-modulating medication. Grade 3= Severe reaction, Grade 4 = Life-threatening, Grade 5 = Death

The number of participants who received immune modulating medication for participants experiencing all high grade (CTCAE v4 Grade 3-4 and Grade 5) Immune Mediated Adverse Events (IMAEs) in the following categories will be included: Skin, Endocrine, Gastrointestinal, Hepatic, Renal, Pulmonary and Hypersensitivity. IMAEs are specific events (or groups of preferred terms describing specific events) considered as potential immune-mediated events by investigator, that meet the following definition: (1) those occurring within 100 days of the last dose (2) regardless of causality (3) with no clear alternate etiology based on investigator assessment, or with an immune-mediated component and (4) treated with immune-modulating medication. Grade 3= Severe reaction, Grade 4 = Life-threatening, Grade 5 = Death

The number of participants who received Hormone Replacement Therapy for experiencing all high grade (CTCAE v4 Grade 3-4 and Grade 5) Immune Mediated Adverse Events (IMAEs) in the following categories will be included: Skin, Endocrine, Gastrointestinal, Hepatic, Renal, Pulmonary and Hypersensitivity. IMAEs are specific events (or groups of preferred terms describing specific events) considered as potential immune-mediated events by investigator, that meet the following definition: (1) those occurring within 100 days of the last dose (2) regardless of causality (3) with no clear alternate etiology based on investigator assessment, or with an immune-mediated component and (4) treated with immune-modulating medication. Grade 3= Severe reaction, Grade 4 = Life-threatening, Grade 5 = Death

The number of participants who received ≥ 40mg of prednisone for high grade (grades 3-5) IMAEs. Participants experiencing all high grade (CTCAE v4 Grade 3-4 and Grade 5) Immune Mediated Adverse Events (IMAEs) in the following categories will be included: Skin, Endocrine, Gastrointestinal, Hepatic, Renal, Pulmonary and Hypersensitivity. IMAEs are specific events (or groups of preferred terms describing specific events) considered as potential immune-mediated events by investigator, that meet the following definition: (1) those occurring within 100 days of the last dose (2) regardless of causality (3) with no clear alternate etiology based on investigator assessment, or with an immune-mediated component and (4) treated with immune-modulating medication. Grade 3= Severe reaction, Grade 4 = Life-threatening, Grade 5 = Death

PFS is defined as the time from first dose to the date of the first documented progressive disease (PD) as determined by the investigator (per RECIST 1.1 criteria or clinical) or death due to any cause whichever occur first. Progressive disease is defined as progression of existing non-target lesions or at least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study (this includes the baseline sum if that is the smallest on study). In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm. The appearance of one or more new lesions is also considered progression.

ORR is defined as the percentage of participants with a best overall response (BOR) of complete response (CR) or partial response (PR) divided by the number of response evaluable participants. Best overall response is defined as the best response recorded from the start of the study treatment until the end of treatment. The participant's best overall response assignment will depend on the findings of both target and non-target disease and will also take into consideration the appearance of new lesions. Partial response is defined as at least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters. Complete response is defined as the disappearance of all lesions and normalization of tumor marker level. All lymph nodes (whether target or non-target) must be non-pathological in size (< 10mm short axis).

TTR is defined as the median percentage of participants with a best overall response (BOR) of complete response (CR) or partial response (PR) divided by the number of response evaluable participants. Best overall response is defined as the best response recorded from the start of the study treatment until the end of treatment. The participant's best overall response assignment will depend on the findings of both target and non-target disease and will also take into consideration the appearance of new lesions. Partial response is defined as at least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters. Complete response is defined as the disappearance of all lesions and normalization of tumor marker level. All lymph nodes (whether target or non-target) must be non-pathological in size (< 10mm short axis).

DOR is defined as the time between the date of first confirmed response to the date of the first documented tumor progression per Response Evaluation Criteria in Solid Tumors (RECIST) 1.1, or death due to any cause, whichever occurs first. DOR will be computed for participants who achieve partial response (PR) or complete response (CR) only. Partial response is defined as at least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters. Complete response is defined as the disappearance of all lesions and normalization of tumor marker level. All lymph nodes (whether target or non-target) must be non-pathological in size (< 10mm short axis).