459 Phase 3 study of first-line pembrolizumab with and without vibostolimab (anti-TIGIT) in patients with PD-L1–positive metastatic NSCLC

Vibostolimab (MK-7684) is a humanized monoclonal antibody (mAb) that binds to the T-cell immunoreceptor with immunoglobulin and ITIM domains (TIGIT), blocking the interaction between TIGIT and its ligands, CD112 and CD155. Pembrolizumab, an anti–PD-1 mAb, significantly improves OS versus chemotherapy in patients with PD-L1–positive advanced non–small-cell lung cancer (NSCLC). In the first-in-human study (NCT02964013), the combination of …