ArticleESMO open2023
Comparison of clinical outcomes of osimertinib and first-generation EGFR-tyrosine kinase inhibitors (TKIs) in TKI-untreated EGFR-mutated non-small-cell lung cancer with leptomeningeal metastases.
Article in ESMO open, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed, 10 citations in OpenAlex.
- Delayed Occurrence of Lung Cancer Leptomeningeal Metastasis and Era-Associated Post-LM Survival: A 14-Year Single-Center Cohort Study.Thoracic cancer · 2026Article
- Increasing incidence and improved survival of leptomeningeal metastasis in advanced lung cancer: a 10-year real-world cohort study.Translational lung cancer research · 2026Article
- Review
- Survival outcomes and a prognostic nomogram in EGFR-mutant non-small cell lung cancer with leptomeningeal metastasis: a real-world cohort study.Journal of neuro-oncology · 2026Article
- Clinical predictors of leptomeningeal metastasis from lung adenocarcinoma based on retrospective analysis.Oncology letters · 2026Article
- Duration of systemic therapy in patients with metastaticTranslational lung cancer research · 2026Article
- Efficacy and safety of aumolertinib in EGFR-mutated non-small cell lung cancer with leptomeningeal metastasis: a single‑center retrospective study.Journal of neuro-oncology · 2025Article
- Changing Treatment and Metastatic Disease Patterns in Patients with EGFR Mutated NSCLC: An Academic Thoracic Medical Investigator's Consortium Registry Analysis.JTO clinical and research reports · 2025Article
- EGFR and PI3K Signalling Pathways as Promising Targets on Circulating Tumour Cells from Patients with Metastatic Gastric Adenocarcinoma.International journal of molecular sciences · 2024Article
- Article
- Treatment Advances in Lung Cancer with Leptomeningeal Metastasis.Current cancer drug targets · 2024Review
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Authors and funding
10 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundLeptomeningeal metastases (LM) are devastating complications of epidermal growth factor receptor (EGFR)-mutated non-small-cell lung cancer (NSCLC). Although osimertinib, a third-generation EGFR-tyrosine kinase inhibitor (TKI), has better penetration into the central nervous system than first-generation EGFR-TKIs, data on the distinct activity of EGFR-TKIs in untreated advanced EGFR-mutated NSCLC with LM are lacking. PATIENTS AND
methodsWe retrospectively reviewed patients treated with EGFR-TKIs for TKI-untreated common EGFR-mutated NSCLC with LM between July 2002 and July 2021 at the National Cancer Center Hospital. The patients were divided into two groups: patients treated with osimertinib (Osi group) and those treated with gefitinib or erlotinib [first-generation (1G)-TKI group].
resultsOf the 967 patients, 71 were eligible, including 29 in the Osi group and 42 in the 1G-TKI group. The median progression-free survival (PFS) and overall survival (OS) in the Osi group were better than those in the 1G-TKI group (PFS: 16.9 months versus 8.6 months, P = 0.007, and OS: 26.6 months versus 20.0 months, P = 0.158). The LM-overall response rate (ORR) and LM-PFS were significantly better in the Osi group than in the 1G-TKI group (LM-ORR: 62.5% versus 25.7%, P = 0.007; LM-PFS: 23.4 months versus 12.1 months, P = 0.021). In the subgroup analysis of EGFR mutation status, LM-PFS for patients with exon 19 deletion was significantly longer in the Osi group than in the 1G-TKI group (32.7 months versus 13.4 months, P = 0.013), whereas those with L858R mutation in exon 21 did not differ between the two groups. In the multivariate analysis, osimertinib and exon 19 deletion were significant factors for better LM-PFS and OS.
conclusionOsimertinib can be more effective for untreated common EGFR-mutated NSCLC patients with LM, especially those with exon 19 deletion, compared to first-generation TKIs.
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