• E E Vokes, L C Drinkard, B L Samuels, P C Hoffman, S Watson, J D Bitran, D J Haraf, M F Ferguson, and H M Golomb.
• Department of Medicine, University of Chicago Medical Center, IL 60637-1470.
• Semin. Oncol. 1994 Oct 1; 21 (5 Suppl 10): 79-83; discussion 83-4.

AbstractIn a randomized phase II study by the Cancer and Leukemia Group B, the cisplatin/5-fluorouracil/leucovorin (PFL) combination produced a 29% response rate in advanced, unresectable non-small cell lung cancer. Vinorelbine (Navelbine; Burroughs Wellcome, Co, Research Triangle Park, NC; Pierre Fabre Médicament, Paris, France), a semisynthetic vinca alkaloid, has also demonstrated single-agent activity in this disease. Therefore, a phase I-II study was designed to investigate the addition of vinorelbine in escalating doses to the PFL combination. The objectives of this study were to establish the maximum tolerated dose of vinorelbine in combination with PFL, and to define the overall response rate in a cohort of patients treated with the maximum tolerated dose. The regimen consisted of vinorelbine in escalating doses starting at 20 mg/m2/d intravenously on days 1 and 5, followed by leucovorin 100 mg orally every 4 hours on days 1 to 5,5-fluorouracil 800 mg/m2/d intravenous continuous infusion days 2 to 5 (96 hours), and cisplatin 100 mg/m2 intravenously 12 to 24 hours after administration of the first dose of vinorelbine. Cycles were repeated every 3 weeks. No dose-limiting toxicity was observed in the first five patients treated with the initial vinorelbine dose. Increasing the dose of vinorelbine to 25 mg/m2 in a second cohort of two patients, however, resulted in grade 4 granulocytopenia in both, and grade 4 diarrhea in one. It was concluded that this dose level was not feasible. During a preliminary analysis, one complete response and three partial responses were observed in 16 patients evaluated; one of these patients had a pathologic complete remission. This early analysis indicates activity for the regimen.

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