BACKGROUND: To evaluate the efficacy and safety of Icotinib - an orally administered, highly potent selective inhibitor of epidermal growth factor receptor (EGFR) and its active mutations, in the treatment of patients with advanced non-small cell lung cancer (NSCLC). METHODS: A total of 101 patients with stage IIIb/IV NSCLC were treated with 125 mg Icotinib three times a day until disease progression or intolerable toxicity. Response rate was evaluated using response evaluation criteria in solid tumors and progression-free survival (PFS) was collected. RESULTS: The overall response rate (ORR) and disease control rate (DCR) were 37.6% (38/101) and 79.2% (80/101), respectively. The median PFS was 6.5 months. Multivariate analysis showed that female gender (P= 0.048, 95% confidence interval [CI] 1.010-6.016) and occurrence of rash (P= 0.002, 95% CI 1.667-9.809) were the independent predictive factors for ORR, while a performance status (PS) score of 0-1 (P= 0.001, 95% CI 0.024-0.402) and rash (P= 0.042, 95% CI 1.089-76.557) were the independent predictive factors for DCR. In addition, PS scores of 0-1 (P <0.001, 95% CI 0.135-0.509), and non-smoking (P= 0.017, 95% CI 0.342-0.900) were found to be independent influencing factors for PFS. Moreover, patients with EGFR mutations had better PFS than patients with wild type EGFR, while patients with EGFR exon 19 deletion had better survival than those with EGFR exon 21 mutation. The most common adverse effects of Icotinib were rash (35.6%) and diarrhea (17.8%), which was tolerable. CONCLUSION: Treatment of stage IIIb/IV NSCLC patients with Icotinib was effective and tolerable, specifically in patients with EGFR mutation.
BACKGROUND: To evaluate the efficacy and safety of Icotinib - an orally administered, highly potent selective inhibitor of epidermal growth factor receptor (EGFR) and its active mutations, in the treatment of patients with advanced non-small cell lung cancer (NSCLC). METHODS: A total of 101 patients with stage IIIb/IV NSCLC were treated with 125 mg Icotinib three times a day until disease progression or intolerable toxicity. Response rate was evaluated using response evaluation criteria in solid tumors and progression-free survival (PFS) was collected. RESULTS: The overall response rate (ORR) and disease control rate (DCR) were 37.6% (38/101) and 79.2% (80/101), respectively. The median PFS was 6.5 months. Multivariate analysis showed that female gender (P= 0.048, 95% confidence interval [CI] 1.010-6.016) and occurrence of rash (P= 0.002, 95% CI 1.667-9.809) were the independent predictive factors for ORR, while a performance status (PS) score of 0-1 (P= 0.001, 95% CI 0.024-0.402) and rash (P= 0.042, 95% CI 1.089-76.557) were the independent predictive factors for DCR. In addition, PS scores of 0-1 (P <0.001, 95% CI 0.135-0.509), and non-smoking (P= 0.017, 95% CI 0.342-0.900) were found to be independent influencing factors for PFS. Moreover, patients with EGFR mutations had better PFS than patients with wild type EGFR, while patients with EGFR exon 19 deletion had better survival than those with EGFR exon 21 mutation. The most common adverse effects of Icotinib were rash (35.6%) and diarrhea (17.8%), which was tolerable. CONCLUSION: Treatment of stage IIIb/IV NSCLCpatients with Icotinib was effective and tolerable, specifically in patients with EGFR mutation.
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