This is a trial to evaluate the efficacy, safety, and tolerability of adagrasib plus pembrolizumab plus platinum-doublet chemotherapy versus placebo plus pembrolizumab plus platinum-doublet chemotherapy in participants with previously untreated, locally advanced or metastatic NSCLC with KRAS G12C mutation
Histologically or cytologically confirmed diagnosis of non-squamous NSCLC with evidence of KRAS G12C mutation via tumor sample and/or circulating tumor deoxyribonucleic acid (ctDNA).
Locally advanced or metastatic disease.
Measurable disease via computed tomography (CT) or magnetic resonance imaging (MRI) per RECIST v1.1 criteria of at least 1 lesion.
No prior systemic anti-cancer therapy given for advanced or metastatic disease.
Participants with an active autoimmune or inflammatory disease requiring systemic treatment within 2 years.
Uncontrolled or significant cardiovascular conditions within 6 months prior to enrollment that are ongoing or with risk of recurrence.
Inadequate bone marrow or liver function or electrocardiogram (ECG) abnormalities.
Ongoing treatment with concomitant medication known to cause prolonged QTc interval and that cannot be switched to alternative treatment prior to study entry.