The availability of targeted therapies for molecular aberrations have substantially improved the outcomes of advanced non-small-cell lung cancer (NSCLC) patients harboring sensitive mutations. However, patients harboring uncommon epidermal growth factor receptor (EGFR) mutations such as G719X and L861Q often resulted in a lack of response to the first and third generation of EGFR TKIs. In this study, we reported a 64-year-old female patient, who initially presented with symptoms of pneumonia and showed positive response to anti-infection treatment, eventually diagnosed with stage Ⅳ lung adenocarcinoma (LUAD) harboring a rare EGFR G719X and L861Q compound mutations. The patient received 40 mg/day of afatinib and experienced no severe adverse events. As a result, partial response (PR) was observed based on CT scan and a progression free survival of 24 month was achieved. Her follow-up is still ongoing. The results of the present case support the effectiveness and safety of afatinib in LUAD patients carrying EGFR G719X and L861Q compound mutations.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11736167PMC
http://dx.doi.org/10.1016/j.rmcr.2023.101953DOI Listing

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