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PURPOSE: This phase III trial of concurrent thoracic radiotherapy (TRT) was conducted to compare third-generation chemotherapy with second-generation chemotherapy in patients with unresectable stage III non-small-cell lung cancer (NSCLC). PATIENTS AND METHODS: Eligible patients received the following treatments: A (control), four cycles of mitomycin (8 mg/m(2) on day 1)/vindesine (3 mg/m(2) on days 1, 8)/cisplatin (80 mg/m(2) on day 1) plus TRT 60 Gy (treatment break for 1 week); B, weekly irinotecan (20 mg/m(2))/carboplatin (area under the plasma concentration-time curve AUC 2) for 6 weeks plus TRT 60 Gy, followed by two courses of irinotecan (50 mg/m(2) on days 1, 8)/carboplatin (AUC 5 on day 1); C, weekly paclitaxel (40 mg/m(2))/carboplatin (AUC 2) for 6 weeks plus TRT 60 Gy, followed by two courses of paclitaxel (200 mg/m(2) on day 1)/carboplatin (AUC 5 on day 1). RESULTS: The median survival time and 5-year survival rates were 20.5, 19.8, and 22.0 months and 17.5%, 17.8%, and 19.8% in arms A, B, and C, respectively. Although no significant differences in overall survival were apparent among the treatment arms, noninferiority of the experimental arms was not achieved. The incidences of grade 3 to 4 neutropenia, febrile neutropenia, and gastrointestinal disorder were significantly higher in arm A than in arm B or C (P < .001). Chemotherapy interruptions were more common in arm B than in arm A or C. CONCLUSION: Arm C was equally efficacious and exhibited a more favorable toxicity profile among three arms. Arm C should be considered a standard regimen in the management of locally advanced unresectable NSCLC.
Yamamoto et al. (Tue,) studied this question.