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  • Title: Postsurgical sequential methotrexate/5-FU and leucovorin on outpatient basis for advanced colorectal carcinoma.
    Author: Tokunaga Y, Kitaoka A, Yagi T, Tokuka A, Ohsumi K.
    Journal: Hepatogastroenterology; 2001; 48(37):128-32. PubMed ID: 11268947.
    Abstract:
    BACKGROUND/AIMS: The present study compared the effects of sequential methotrexate and 5-fluorouracil followed by leucovorin rescue (MFL), as an adjuvant chemotherapy versus a combination of UFT and mitomycin C (MMC), on patient survival and recurrence after surgery for colorectal carcinoma. METHODOLOGY: Between January 1990 and December 1997, a total of 55 patients with advanced colorectal cancer were treated postsurgically by adjuvant chemotherapy using MFL or UFT-MMC. Surgical treatment was performed according to standardized procedures for radical resection of colorectal cancer. The patients were divided into 2 groups after surgery. The MFL regimen consisted of MTX (100 mg/m2) and 5-FU (600 mg/m2) at hour 24, followed by leucovorin rescue. The UFT-MMC regimen consisted of MMC (12 mg/m2) intraoperatively and MMC (6 mg/m2) every other week after surgery for 2 months, and oral UFT (375 mg/m2/day), a combination of tegafur and uracil in a molar ratio of 1:4, was continued for 3 years or longer depending on the patients tolerance. RESULTS: The overall survival rates after surgery were significantly (P < 0.05) higher in the MFL than the UFT-MMC group. Recurrence rates were significantly lower in the MFL than the UFT-MMC group, especially for liver recurrence. Disease-free survival was significantly (P < 0.05) higher in the MFL than the UFT-MMC group. CONCLUSIONS: These results demonstrated the superiority of MFL therapy for improving postsurgical survival in patients with advanced colorectal cancer, in particular those patients with a high risk of recurrence following potential curative resection.
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