ArticleJournal of cancer research and clinical oncology2023
Favorable survival outcomes in epidermal growth factor receptor (EGFR)-mutant non-small cell lung cancer sequentially treated with a tyrosine kinase inhibitor and osimertinib in a real-world setting.
Article in Journal of cancer research and clinical oncology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed, 3 citations in OpenAlex.
- Risk Factors Associated with Suboptimal Real-World Outcomes in Patients with EGFR-Mutated Non-Small Cell Lung Cancer Treated with Front-Line Recommended Therapy.Advances in therapy · 2025Observational
- Flavonoids in the Treatment of Non-small Cell Lung Cancer via Immunomodulation: Progress to Date.Molecular diagnosis & therapy · 2025Review
- Public assistance and survival equality in patients with EGFR mutation-positive lung cancer.Japanese journal of clinical oncology · 2025Article
- Treatment decision-making for leptomeningeal metastasis after TKI resistance in EGFR-mutant lung cancer: a comprehensive review on staging, resistance patterns, and multimodal interventions.Frontiers in neurologyReview
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Authors and funding
18 authors at 6 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
purposeEGFR tyrosine kinase inhibitor (TKI) therapy in EGFR-mutated lung cancer is limited by acquired resistance. In half of the patients treated with first/second-generation (1st/2nd gen) TKI, resistance is associated with EGFR p.T790M mutation. Sequential treatment with osimertinib is highly active in such patients. Currently, there is no approved targeted second-line option for patients receiving first-line osimertinib, which thus may not be the best choice for all patients. The present study aimed to evaluate the feasibility and efficacy of a sequential TKI treatment with 1st/2nd gen TKI, followed by osimertinib in a real-world setting.
methodsPatients with EGFR-mutated lung cancer treated at two major comprehensive cancer centers were retrospectively analyzed by the Kaplan-Meier method and log rank test.
resultsA cohort of 150 patients, of which 133 received first-line treatment with a first/second gen EGFR TKI, and 17 received first-line osimertinib, was included. Median age was 63.9 years, 55% had ECOG performance score of ≥ 1. First-line osimertinib was associated with prolonged progression-free survival (P = 0.038). Since the approval of osimertinib (February 2016), 91 patients were under treatment with a 1st/2nd gen TKI. Median overall survival (OS) of this cohort was 39.3 months. At data cutoff, 87% had progressed. Of those, 92% underwent new biomarker analyses, revealing EGFR p.T790M in 51%. Overall, 91% of progressing patients received second-line therapy, which was osimertinib in 46%. Median OS with sequenced osimertinib was 50 months. Median OS of patients with p.T790M-negative progression was 23.4 months.
conclusionReal-world survival outcomes of patients with EGFR-mutated lung cancer may be superior with a sequenced TKI strategy. Predictors of p.T790M-associated resistance are needed to personalize first-line treatment decisions.
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