Comparing the effectiveness of different EGFR-TKIs in patients with EGFR mutant non-small-cell lung cancer: A retrospective cohort study in Taiwan.,International Journal of Cancer

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Comparing the effectiveness of different EGFR-TKIs in patients with EGFR mutant non-small-cell lung cancer: A retrospective cohort study in Taiwan.
International Journal of Cancer ( IF 6.4 ) Pub Date : 2019-12-19 , DOI: 10.1002/ijc.32841
Yao-Yu Hsieh,Wei-Tse Fang,Yu-Wen Lo,Yi-Han Chen,Li-Nien Chien

The study was to compare the effectiveness of different epidermal growth factor receptor—tyrosine kinase inhibitors (EGFR‐TKIs) in patients with advanced non‐small‐cell lung cancer (NSCLC) and received EGFR‐TKIs as first‐line therapy. This retrospective cohort study was conducted using data from real‐world settings. Patients with stage IIIB and IV NSCLC and first received gefitinib, erlotinib, or afatinib between 2011 and 2015 were included. The date of the first claim for EGFR‐TKIs was set as the index date. Study endpoints were all‐cause death and treatment failure that was defined when patients added on or switched to chemotherapy or terminal care. A total of 5,940 patients, including 3,982 (67.0%) receiving gefitinib, 1,207 (20.3%) receiving erlotinib, and 751 (12.7%) receiving afatinib, were eligible for this study. The 1‐year overall survival (OS) rates for gefitinib, erlotinib, and afatinib groups were 74% (95% confidence interval [CI]: 72–75%), 75% (95% CI: 73–77%), and 80% (95% CI: 77–83%), respectively. Compared to gefitinib, afatinib was associated with a lower risk of all‐cause death (adjusted hazard ratio [aHR] = 0.82, 95% CI: 0.72–0.93) but not erlotinib (aHR = 0.95, 95% CI: 0.86–1.05). Similar results were also found regarding the effectiveness of treatment. All the three EGFR‐TKIs showed no differences for both outcomes among patients with an Eastern Cooperative Oncology Group Performance Score of 2. The real‐world data exhibited afatinib was more likely to be used for younger patients in a better condition than other EGFR inhibitors, and observed prolonged OS and treatment effectiveness compared to gefitinib after performing a multivariate Cox regression analysis.

更新日期：2019-12-19

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