A Randomized Phase 2/3 Study of Navlimetostat (BMS-986504) in Combination With Pembrolizumab and Chemotherapy Versus Placebo Plus Pembrolizumab and Chemotherapy in First-line Metastatic Non-small Cell Lung Cancer Participants With Homozygous MTAP Deletion

Inclusion Criteria * Participants must have Metastatic (Stage IV or recurrent) non-small cell lung cancer (NSCLC) (as defined by the American Joint Committee on Cancer, Ninth Edition) with no prior systemic anti-cancer therapy for metastatic disease. * Participants must have histologically confirmed diagnosis of NSCLC and homozygous methylthioadenosine phosphorylase (MTAP) deletion or MTAP loss. * Participants must have an Eastern Cooperative Oncology Group (ECOG) performance status of 0-1. * Participants must have at least 1 measurable lesion as per RECIST v1.1. Exclusion Criteria * Nonsqu…