A Study to Compare the Efficacy of Nivolumab and Relatlimab Plus Chemotherapy vs Pembrolizumab Plus Chemotherapy for Stage IV/Recurrent Non-squamous Non-small Cell Lung Cancer With PD-L1 Expression ≥ 1%

Inclusion Criteria * Participants must have histologically confirmed Stage IV or recurrent Non-small Cell Lung Cancer (NSCLC) of non-squamous (NSQ) histology with no prior systemic anti-cancer therapy given as primary therapy for advanced or metastatic disease. * Participants must have measurable PD-L1 ≥ 1% Tumor Cell (TC) score by the investigational PD-L1 immunohistochemistry (IHC) assay VENTANA PD-L1 (SP263) CDx Assay conducted by central laboratory during the screening period prior to randomization. * Participants must have measurable disease by computed tomography (CT) or magnetic resonance imaging (MRI) per RECIST v1.1 criteria. * Participants must have an Easter Cooperative Oncology Group (ECOG) performance status of ≤ 1 at screening. * Participants must have a life expectancy of at least 3 months at the time of randomization. Exclusion Criteria * Participants must not be pregnant and/or breastfeeding. * Participants with epidermal growth factor receptor (EGFR), anaplastic lymphoma kinase (ALK), or ROS-1 mutations that are sensitive to available targeted inhibitor therapy. Participants with unknown EGFR, ALK, or ROS-1 status are excluded. * Participants with known BRAFV600E mutations, that are sensitive to available targeted inhibitor therapy; participants with known activating rearranged during transfection (RET) mutations or neurotrophic tyrosine receptor kinase (NTRK) fusion gene alterations are excluded. Participants with unknown or indeterminate BRAF mutation, …