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  • Title: Double modulation with methotrexate and L-leucovorin of weekly 24- hour fluorouracil infusion in fluorouracil-refractory colorectal cancer.
    Author: Colleoni M, Nelli P, Vicario G, Pancheri F, Sgarbossa G, Manente P.
    Journal: Anticancer Res; 1996; 16(5B):3101-4. PubMed ID: 8920775.
    Abstract:
    No effective second-line therapy has been developed for patients with metastatic colorectal cancer progressive after than fluorouracil(FU)-containing chemotherapy. Encouraging results have been reported with weekly 24-hour FU infusion. The aim of this study was to test the activity of weekly FU infusion plus modulation with methotrexate and L-leucovorin in pretreated colorectal cancer patients. Seventeen patients with metastatic colorectal carcinoma were treated with methotrexate (40 mg/m2 on day 1), L-leucovorin (100 mg/m2 as a 4-hour infusion on day 2), and FU (2,600 mg/m2 as a 24-hour infusion on day 2). All patients had measurable disease and a performance status of ECOG O-2. Two of the 17 evaluable patients achieved partial remission (12%; 95% confidence interval 2-24%), 9 had stable disease, and 6 progressive disease. Median time to progression was 4 months (range, 2-8) and median survival was 7 months (range, 3-12+). Toxicity was generally mild or moderate and consisted of mucositis, diarrhea and neutropenia. Pretreated patients with metastatic colorectal, carcinoma benefit only marginally from this treatment schedule.
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