ArticleTargeted oncology2024
Impact of PD-L1 Expression on the Overall Survival of Caucasian Patients with Advanced EGFR-Mutant NSCLC Treated with Frontline Osimertinib.
Article in Targeted oncology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Bidirectional coupling among EMT, AXL-RB1 signaling and lineage switch drives resistance to osimertinib and worse clinical outcomes in NSCLC.bioRxiv : the preprint server for biology · 2026Article
- Revisiting Biomarker-Guided Therapy in EGFR-Mutant Non-Small Cell Lung Cancer with High PD-L1 Expression.International journal of molecular sciences · 2026Review
- <p>Immunotherapy after EGFR‑TKI treatment in advanced non‑small cell lung cancer: Current status and future perspectives (Review)</p>.Oncology reports · 2026Review
- Investigating the correlation between IDO1/PD-L1 expression or co-expression and EGFR/KRAS gene mutations in advanced NSCLC.Scientific reports · 2025Article
- Impact of Baseline β-Catenin Comutations on Prognosis in EGFR-Mutant Lung Cancer.JCO precision oncology · 2025Article
- Spatial Heterogeneity of PD-L1 Expression as a Biomarker for Third-Generation EGFR-TKI Response in Advanced EGFR-Mutant NSCLC.Cancer science · 2025Article
- The role of PD-L1 in EGFR-mutant non-small cell lung cancer.Discover oncology · 2025Review
- Optimizing Osimertinib for NSCLC: Targeting Resistance and Exploring Combination Therapeutics.Cancers · 2025Review
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe treatment of advanced non-small cell lung cancer (NSCLC) harboring an oncogenic epidermal growth factor receptor mutation (EGFRm) is currently based on osimertinib, a third-generation tyrosine kinase inhibitor (TKI). High Programmed death ligand 1 (PD-L1) expression ≥ 50% demonstrated to be a negative prognostic factor, mostly among Asian populations treated with 1st/2nd generation TKI.
objectiveWe investigated the impact of PD-L1 expression on the progression free survival (PFS) and overall survival (OS) within a cohort of patients receiving osimertinib as first-line treatment.
methodsOur bi-centre French retrospective study included all newly diagnosed patients with an advanced EGFRm (common and uncommon) NSCLC, between May 2018 and November 2022, treated with osimertinib. The primary endpoint was OS according to tumor proportion score PD-L1 expression (low/intermediate < 50% vs high ≥ 50%). Survival analyses were performed using Kaplan-Meier method and Cox model for adjusted multivariate analysis.
resultsOf 96 patients, median age was 71 (IQR 62-76), 70 were women (72.9%), 81 had a performance status (PS) 0-1 (84.3%). Median follow-up was 22.6 months (95% CI 20.5-24.7). Twenty patients (20.8%) had high PD-L1 expression ≥ 50%. No significant differences in baseline characteristics were observed based on PD-L1 status. Patients with PD-L1 ≥ 50% had significant shorter PFS and OS than those with PD-L1 < 50%, respectively 9.3 vs 17.5 months (p = 0.044 months) and 14.3 vs 26.0 months (p = 0.025). Multivariable adjustment for baseline characteristics found that PS ≥ 2 (HR 2.79, 95% CI 1.12-6.93, p = 0.027), PD-L1 ≥ 50% (HR 2.61, 95% CI 1.31 to 5.22, p = 0.007) and uncommon EGFR mutation (HR 4.59, 95% CI 1.95-10.80, p = <0.001) were associated with a shorter OS. Brain metastases at diagnosis and age ≥ 65 were not, respectively HR 1.66 (95% CI 0.90-3.06, p = 0.11) and HR 0.95 (95% CI 0.50-1.80, p=0.9).
conclusionsOur study found that PD-L1 expression ≥ 50% was associated with a shorter OS in EGFRm NSCLC patients treated with first line osimertinib. Further research is warranted to understand the underlying molecular and cellular mechanisms of this correlation.
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