Abstract
Background: Epidermal Growth Factor Receptor (EGFR) Tyrosine Kinase inhibitor (TKI) can improve progression free survival in patients with treatment naive EGFR mutant metastatic non-small cell lung cancer (NSCLC) compared with platinum-based chemotherapy, but no statistically significant difference is observed in overall survival. The survival time of EGFR mutant NSCLC patients treated with at least two systemic chemotherapy regimens and one EGFR TKI was 34.8 months in a previous study. Objective: The present study was to determine the median survival time of advanced NSCLC patients who received EGFR-TKIs in Chulabhorn Hospital. Materials and Methods: We retrospectively reviewed the medical records of advanced NSCLC cases treated with EGFR TKIs in Chulabhorn Hospital during 2009 to 2011. Results: Among 243 advanced NSCLC cases, 72 patients received EGFR TKIs. EGFR mutation status was positive in 14 (19.17%) patients. The median overall survival time was 30.04 months (95% CI: 18.71 to 49.48 months) in all patients, compared with 49.49 months (95% CI: 15.93 to NR) in EGFR mutation-positive patients (n=14). No statistically significant difference of overall survival was noted between EGFR mutation status groups (p=0.51). Conclusion: The median survival time for Thai patients treated with EGFR TKIs was comparable to historical data and irrespective of EGFR mutation status. Keywords: Metastatic non-small cell lung cancer, EGFR TKIs, Survival
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