Randomized phase III trial of S-1 plus cisplatin versus docetaxel plus cisplatin for advanced non-small-cell lung cancer (TCOG0701).

7515 Background: Although molecularly targeted therapy improves outcome of selected patients with advanced non-small-cell lung cancer (NSCLC), most of the patients ultimately become candidates of cytotoxic chemotherapy, which is the cornerstone of patient management. S-1 plus cisplatin (SP) has shown activity and good tolerability in phase II settings. Docetaxel plus cisplatin (DP) is the only third-generation regimen that demonstrated statistically significant improvement of overall survival and quality of life by head to head comparison with a second-generation regimen, vindesine plus cisplatin, in patients with advanced NSCLC. Methods: Patients with previously untreated stage IIIB or IV NSCLC, an ECOG PS of 0-1 and adequate organ functions were randomized to receive either oral S-1 80 mg/m2/day (40 mg/m2 b.i.d.) on days 1 to 21 plus cisplatin 60 mg/m2 on day 8 every 5 weeks or docetaxel 60mg/m2 on day 1 plus cisplatin 80 mg/m2 on day 1 every 3 weeks, both up to 6 cycles. The primary endpoint is overall...