• Ann. Surg. Oncol. · Jun 2014

    Randomized Controlled Trial

    Pemetrexed-carboplatin adjuvant chemotherapy with or without gefitinib in resected stage IIIA-N2 non-small cell lung cancer harbouring EGFR mutations: a randomized, phase II study.

    • Ning Li, Wei Ou, Xiong Ye, Hai-Bo Sun, Liang Zhang, Qin Fang, Song-Liang Zhang, Bao-Xiao Wang, and Si-Yu Wang.
    • Department of Thoracic Surgery, Sun Yat-sen University Cancer Center, Guangzhou, China.
    • Ann. Surg. Oncol. 2014 Jun 1; 21 (6): 2091-6.

    BackgroundEpidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs) show great efficacy in patients with advanced non-small cell lung cancer (NSCLC) with EGFR mutations. The efficacy and safety of gefitinib following adjuvant chemotherapy in patients with EGFR mutation are unknown.MethodsIn this open-label, phase II study, patients with resected stage IIIA-N2 NSCLC harbouring EGFR mutations (either exon 19 deletion or L858R point mutation) were assigned randomly to receive pemetrexed (500 mg/m(2)) and carboplatin (AUC = 5), administered every 21 days for 4 cycles, followed with or without gefitinib (250 mg/day) for 6 months. The primary end point was disease-free survival (DFS).ResultsFrom August 2008 to September 2011, 60 patients were included in our center. DFS was significantly longer among those who received pemetrexed and carboplatin (PC)-gefitinib than among those who received PC alone [hazard ratio (HR), 0.37; 95 % confidence interval (CI) 0.16-0.85; P = 0.014; median, 39.8 vs. 27.0 months]. The rates of 2-year DFS were 78.9 % in the PC-gefitinib group and 54.2 % in the PC alone group. The rates of 2-year overall survival (OS) were 92.4 % in the PC-gefitinib group and 77.4 % in the PC alone group (HR, 0.37; 95 % CI 0.12-1.11, P = 0.076). The most common adverse event was rash (43.3 %, 13/30) in the PC-gefitinib group and the administration of gefitinib following chemotherapy was well tolerated.ConclusionsThe administration of gefitinib following PC adjuvant therapy shows significant improvement in DFS in patients with resected stage IIIA-N2 NSCLC harbouring EGFR mutations.

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