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UFT plus vinorelbine in advanced non-small cell lung cancer: a phase I and an elderly patient-directed phase II study
Tadashi Igishi1, Yasushi Shigeoka, Kazuhito Yasuda
1Division of Medical Oncology and Molecular Respirology, Faculty of Medicine, Tottori University, Yonago, Japan. igishi@grape.med.tottoriu.ac.jp
Purpose:
The combination of tegafur-uracil (UFT) with vinorelbine has provided synergistic activity against non-small cell lung cancer (NSCLC) in experimental models. The recommended dose of UFT in combination with vinorelbine in NSCLC was determined in a phase I study. The phase II study evaluated efficacy and tolerability of this combination in elderly patients.
Methods:
Vinorelbine was infused on days 1 and 8, and UFT was administered twice daily on days 2 to 6 and days 9 to 13 of a 3-week cycle. UFT and vinorelbine were increased during the phase I study from 400 to 600 mg/d and 20 to 25 mg/m(2), respectively, in 12 patients. In the phase II portion, previously untreated elderly patients were treated with 600 mg/d UFT and 20 mg/m(2) vinorelbine.
Results:
At the dose level of 600 mg/d UFT and 25 mg/m(2) vinorelbine, dose-limiting toxicity of neutropenia or neutropenic fever was observed in two of three patients, determining the recommended dose of 600 mg/d UFT and 20 mg/m(2) vinorelbine. In 30 evaluable elderly patients of the phase II study, the response rate was 27% (8/30). The median survival and progression-free survival time was 11.8 (range 2.7-34.8) and 5.0 (range 0.5-32.5) months, respectively. Grade 3 or grade 4 neutropenia and grade 3 anemia occurred in 40% and 7% of phase II patients, respectively. Gastrointestinal toxicity was frequent but mild. As the most serious toxicity, pneumonitis was observed in three patients.
Conclusion:
This combination of UFT and vinorelbine is both feasible and active in the treatment of elderly patients with advanced NSCLC.
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