Programmed Death-Ligand 1 Tumor Proportion Score and Overall Survival From First-Line Pembrolizumab in Patients With Nonsquamous Versus Squamous NSCLC
Doroshow DB, Wei W, Gupta S, Zugazagoitia J, Robbins C, Adamson B, Rimm DL. Programmed Death-Ligand 1 Tumor Proportion Score and Overall Survival From First-Line Pembrolizumab in Patients With Nonsquamous Versus Squamous NSCLC. Journal Of Thoracic Oncology 2021, 16: 2139-2143. PMID: 34455068, PMCID: PMC8612948, DOI: 10.1016/j.jtho.2021.07.032.Peer-Reviewed Original ResearchConceptsPD-L1 tumor proportion scoreTumor proportion scoreHigh PD-L1 tumor proportion scoreOverall survivalNonsquamous histologySquamous NSCLCNonsquamous NSCLCPredictive biomarkersProportion scoreDeath ligand 1 (PD-L1) tumor proportion scoreElectronic health record-derived databaseFirst-line pembrolizumab therapyPD-1 expression levelsPD-L1 expression levelsCommunity oncology clinicsMedian OS differenceSingle-agent pembrolizumabImmune checkpoint inhibitorsImproved overall survivalMedian overall survivalPrimary end pointFirst-line pembrolizumabFirst-line therapyPD-L1 expressionPD-L1 testing