Abstract
The majority of patients with completely resected stage II or IIIA non-small-cell lung cancer (NSCLC) require adjuvant chemotherapy to improve survival following surgery. In the present trial, the 2-year disease-free survival (DFS), and the feasibility and safety of S-1 as an adjuvant chemotherapy for advanced lung cancer were evaluated. A total of 40 patients with completely resected stage II or IIIA NSCLC were enrolled and randomized to receive postoperative chemotherapy with either up to 4 cycles of paclitaxel plus carboplatin (arm A) or with up to 1 year of S-1 (arm B). The primary endpoint was 2-year DFS. The secondary endpoints were feasibility and toxicity. A total of 40 patients were enrolled, but 3 were excluded in accordance with the exclusion criteria. The remaining 37 patients were analyzed. The 2-year DFS rate was 54.2% in arm A and 84.2% in arm B. Overall, 15/18 (83.3%) patients completed 4 cycles of paclitaxel plus carboplatin and 13/19 (68.4%) completed 1-year of S-1adjuvant chemotherapy. Of the 18 (16.7%) patients in arm A, 3 experienced grade 3 or 4 adverse events, while none in arm B experienced such events. Therefore, S-1 chemotherapy for patients with completely resected stage II or IIIA NSCLC was a feasible and safe regimen, and it may therefore be considered as a potential adjuvant chemotherapy option for advanced NSCLC.
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