Circulating tumor cells <scp>PD‐L1</scp> expression detection and correlation of therapeutic efficacy of immune checkpoint inhibition in advanced non‐small‐cell lung cancer

Abstract

CTCs and tumor tissues reveal heterogeneous expression of PD-L1 in NSCLC patients. Patients with baseline PD-L1 expression on CTCs or tissue showed prolonged mPFS and may help to identify the subsets of patients who potentially benefit from immunotherapy.