Clinical and molecular characteristics associated with high PD-L1 expression in EGFR-mutated lung adenocarcinoma.

ABSTRACT:

Objective

Recent evidence suggests that elevated levels of PD-L1 expression may be linked to early resistance to TKI and reduced survival in NSCLC with EGFR mutations. This study aimed to characterize the clinical and molecular features of EGFR-mutated lung adenocarcinomas and determine the prognostic significance associated with high PD-L1 expression.

Materials and methods

We conducted a retrospective chart review of 103 consecutive patients with advanced EGFR-mutated NSCLC, who received treatment between 01/01/2016 and 30/12/2020, at our institution.

Results

Among the tumors, 17% (n = 18) exhibited high PD-L1 expression (≥50% tumor proportion score), which was associated with a lower prevalence of common EGFR mutations (56% vs. 82%, p = 0.03) and a higher frequency

SUBMITTER: Slomka J 

PROVIDER: S-EPMC11542846 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature