The purpose of this study is to assess the safety and efficacy of pemetrexed + platinum chemotherapy + pembrolizumab (MK-3475) with or without lenvatinib (MK-7902/E7080) as first-line intervention in adults with metastatic nonsquamous non-small cell lung cancer.
The primary study hypotheses state that: 1) the combination of lenvatinib + platinum doublet chemotherapy + pembrolizumab prolongs Progression-free Survival (PFS) as assessed by blinded independent central review (BICR) per modified Response Evaluation Criteria in Solid Tumors version 1.1 (RESIST 1.1) compared to matching placebo + platinum doublet chemotherapy + pembrolizumab, and 2) the combination of lenvatinib + platinum doublet chemotherapy + pembrolizumab prolongs Overall Survival (OS) compared to matching placebo + platinum doublet chemotherapy + pembrolizumab.