A Randomized, Double-blind, Phase 2 Study of BMS-986315 and Nivolumab in Combination With Chemotherapy Versus Nivolumab in Combination With Chemotherapy as First-line Treatment for Participants With Stage IV or Recurrent Non-small Cell Lung Cancer (NSCLC)

Number of Participants With Adverse Events (AEs) for Part 1

时间窗: From first dose through 100 days following last dose of study treatment (assessed for approximately 7 months)

An adverse event (AE) is defined as any new untoward medical occurrence or worsening of a pre-existing medical condition occurring in a clinical investigation participant after signing of informed consent, whether or not considered related to the study intervention. An AE can therefore be any unfavorable and unintended sign (such as an abnormal laboratory test result), symptom, or disease temporally associated with the study intervention.

Number of Participants With Treatment Related Adverse Events (TRAEs) for Part 1

时间窗: From first dose through 100 days following last dose of study treatment (assessed for approximately 7 months)

An adverse event (AE) is defined as any new untoward medical occurrence or worsening of a pre-existing medical condition occurring in a clinical investigation participant after signing of informed consent, whether or not considered related to the study intervention. An AE can therefore be any unfavorable and unintended sign (such as an abnormal laboratory test result), symptom, or disease temporally associated with the study intervention.

Number of Participants With Serious Adverse Events (SAEs) for Part 1

时间窗: From first dose through 100 days following last dose of study treatment (assessed for approximately 7 months)

Serious Adverse Event (SAE) is defined as any untoward medical occurrence that, at any dose results in death, is life-threatening, and requires inpatient hospitalization or causes prolongation of existing hospitalization.

Number of Participants With Adverse Events (AEs) Meeting Protocol-defined Dose-limiting Toxicity (DLT) Criteria for Part 1

时间窗: From first dose (Cycle 1 Day 1) up to day 28

Dose-Limiting Toxicities (DLTs) are treatment effects serious enough to prevent dose increase. Severity grades: 1=Mild, 2=Moderate, 3=Severe, 4=Life-threatening, 5=Death * Grade 2 uveitis or eye pain not improving or require systemic treatment * Grade 2 pneumonitis or interstitial lung disease \>14 days * Grade ≥ 3 uveitis, episcleritis, iritis, pneumonitis, bronchospasm or neurologic toxicity * Grade 3 colitis not responding \>48 hours * Hepatic abnormalities without liver metastases: serum transaminases (AST/ALT) \>5x \& ≤ 8xULN for \>2weeks, AST/ALT \>8xULN regardless of duration, total bilirubin \>3xULN, or concurrent AST/ALT \>3xULN \& total bilirubin \>2xULN * Hepatic abnormalities with liver metastases: AST/ALT \>8x \& ≤10xULN for \>2 weeks, AST/ALT \>10xULN regardless of duration, total bilirubin \> 3xULN, or concurrent AST/ALT \>8xULN \& total bilirubin \>2xULN * Grade 3 (hypersensitivity reaction not resolving to Grade 1 in 6 hours; fatigue \>7 days; nausea, vomiting, or diarrhea \>72 hours)

Number of Participants With Adverse Events (AEs) Leading to Discontinuation for Part 1

时间窗: From first dose through 100 days following last dose of study treatment (assessed for approximately 7 months)

An adverse event (AE) is defined as any new untoward medical occurrence or worsening of a pre-existing medical condition occurring in a clinical investigation participant after signing of informed consent, whether or not considered related to the study intervention. An AE can therefore be any unfavorable and unintended sign (such as an abnormal laboratory test result), symptom, or disease temporally associated with the study intervention.

Number of Participants Who Died in Part 1

时间窗: From first dose through 100 days following last dose of study treatment (assessed for approximately 7 months)

Number of participants who died during the study

Objective Response Rate (ORR) for Part 2

时间窗: From randomization until the date of first objectively documented progression or start of subsequent therapy whichever occurred first (planned for up to approximately 5 years)

Objective response rate (ORR) is defined as the number of participants who achieve a best overall response (BOR) of confirmed complete response (CR) or confirmed partial response (PR), based on blinded independent central review (BICR) assessments using Response Evaluation Criteria in Solid Tumors (RECIST 1.1), divided by the number of all randomized participants. Complete Response (CR): Disappearance of all target lesions. Any pathological lymph nodes (whether target or non-target) must have reduction in short axis to \< 10 mm. Partial Response (PR): At least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters. No participants were enrolled in Part 2 due to the study termination; therefore, no data were collected for this endpoint.