ArticleCurrent oncology (Toronto, Ont.)2025
Rebiopsy Enhances Survival with Afatinib vs. Osimertinib in EGFR Exon 19 Deletion Non-Small Cell Lung Cancer: A Multicenter Study in Taiwan.
Article in Current oncology (Toronto, Ont.), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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5 authors.
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Abstract
backgroundAfatinib and Osimertinib are first-line treatments for EGFR-mutated advanced non-small cell lung cancer (NSCLC), but their comparative efficacies and the patient groups that benefit the most remain unclear. This multicenter retrospective study evaluated the efficacy of first-line Afatinib and Osimertinib in NSCLC patients with EGFR 19del and no brain metastases at diagnosis.
methodsThe primary endpoints were time on treatment (ToT) and overall survival (OS). Survival analyses were performed for three groups: Afatinib followed by Osimertinib, Afatinib followed by other therapies, and Osimertinib (alone or followed by other therapies). Rebiopsy practices, including T790M mutation detection, were also analyzed in patients with disease progression on Afatinib.
resultsAmong 97 Afatinib-treated and 60 Osimertinib-treated patients, Osimertinib showed a significantly longer ToT (23.3 vs. 16.5 months;
conclusionsIn this real-world study, Osimertinib achieved a significantly longer ToT compared to Afatinib in NSCLC patients with EGFR 19del and no brain metastases. The sequential use of Afatinib followed by Osimertinib showed a trend toward improved OS, highlighting the importance of rebiopsy for identifying T790M mutations to guide subsequent therapy.
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