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Purpose: To investigate the efficiency and safety of afatinib in combination with bevacizumab in patients with non-small cell lung cancer (NSCLC) harboring epidermal growth factor receptor (EGFR) G719X, S768I, and L861Q mutations.
Patients And Methods: We retrospective studied treatment naïve patients with local advanced or metastatic non-small cell lung cancer harboring EGFR G719X, S768I, and L861Q mutations from January 2017 to August 2021. EGFR tyrosine kinase inhibitors (TKIs) were the first-line treatment in all patients. The demographic, clinical data and treatment results were collected and analyzed.
Results: A total of 12 Chinese patients were studied. There were seven EGFR G719X mutations, three of the seven patients with single mutation and the others with compound mutations. Four patients had EGFR S768I mutations and one of them with single mutation. Four patients had EGFR L861Q/P mutations and one of them with compound mutations. The overall response rate of the EGFR TKIs treatment was 58.33% (7/12). The median progression-free survival (PFS) was 11.0 months, and median overall survival (OS) was 35.40 months. Two of five (40%) patients had required EGFR T790M mutations after TKIs were resistant. The side effects were mild to moderate hand-foot-syndrome, hypertension, and proteinuria.
Conclusion: Afatinib in combination with bevacizumab are effective and safe in the management of patients with NSCLC harboring EGFR G719X, S768I, L861Q/P single or compound mutations.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11606169 | PMC |
http://dx.doi.org/10.2147/IJGM.S485545 | DOI Listing |
Transl Lung Cancer Res
June 2025
Department of Medical Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, China.
Background: In terms of treatment, non-small cell lung cancer (NSCLC) can be classified into driver gene mutation-positive or -negative lung cancer. Compared with adenocarcinoma, lung squamous carcinoma (LUSC) patients with rare driver gene mutations are a small proportion of NSCLC, who experience significantly less benefit from targeted therapies and have limited second-line treatment options and poor prognosis. Immunotherapy is an important treatment strategy for patients with NSCLC.
View Article and Find Full Text PDFInt J Clin Oncol
September 2025
Division of Thoracic Oncology, Shizuoka Cancer Center, 1007 Shimonagakubo, Nagaizumi-cho, Sunto-gun, Shizuoka, Japan.
Background: There are no prospective clinical data on the efficacy of afatinib in patients with non-small cell lung cancer (NSCLC) harboring various uncommon epidermal growth factor receptor (EGFR) mutations detected using next-generation sequencing. We aimed to report the efficacy and safety of afatinib in patients with NSCLC harboring uncommon EGFR mutations detected using next-generation sequencing.
Methods: This was a prospective single-center single-arm phase II study.
Oncol Lett
August 2025
Department of Pulmonary and Critical Care Medicine, Life Science and Clinical Medicine Research Center, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, Guangxi Zhuang Autonomous Region 533000, P.R. China.
Mutations in EGFR (mEGFRs) in non-small cell lung cancer (NSCLC) are key factors driving tumor development and treatment response. The present article aimed to review the classification, characteristics and molecular mechanisms of resistance to third-generation EGFR-tyrosine kinase inhibitors (EGFR-TKIs) associated with mEGFRs. Activating mutations (such as L858R and exon 19 deletions) are the primary markers of sensitivity to EGFR-TKIs, while rare mutations (such as G719X and S768I) require individualized treatment strategies.
View Article and Find Full Text PDFTher Adv Respir Dis
May 2025
Vietnam National Cancer Hospital, Hanoi, Vietnam.
Background: Afatinib is indicated for patients with advanced-stage non-small cell lung cancer (NSCLC) with epidermal growth factor receptor (EGFR) mutations, including uncommon mutations. However, the differences in survival benefits between patients with different types of EGFR mutations remain unclear.
Objectives: This study aimed to compare the effectiveness of afatinib treatment in patients harboring the EGFR-G719X mutation with that in patients carrying other uncommon EGFR mutations.
J Thorac Oncol
September 2025
Division of Medical Oncology, Department of Internal Medicine, Yonsei Cancer Center, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea. Electronic address:
Introduction: Uncommon EGFR mutations comprise 10% to 20% of all EGFR mutations in NSCLC and generally report reduced responsiveness to EGFR tyrosine kinase inhibitors (TKIs). Lazertinib, a third-generation EGFR-TKI, has found efficacy in common EGFR mutations, but its potential in uncommon mutations remains unexplored. This study investigated the efficacy and safety of lazertinib in patients with NSCLC with uncommon EGFR mutations.
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