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Infusional 5-Fluorouracil and Mitomycin C: An Effective Regimen in the Treatment of Advanced Gastric Cancer

Background: Weekly infusional 5-fluorouracil (5-FU) and folinic acid (FA) as part of multi-drug chemotherapy regimens in advanced gastric cancer (AGC) has shown to be effective with low toxicity. The present analysis was carried out to evaluate the safety and efficacy of 5-FU/FA in combination with 3-weekly mitomycin C (MMC) in patients with advanced gastric cancer. Patients and Methods: A total of 28 patients with AGC were analysed (first line n = 23). They received weekly 24-h 5-FU 2,600 mg/m2 preceded by 2-h FA 500 mg/m2 for 6 weeks followed by a two week rest period. Bolus MMC 10 mg/m2 was applied on days 1 and 22. Patient characteristics were: m/f 17/11; median age 67 years (43-79). The most common metastatic sites were liver and peritoneum (n = 12, respectively). Results: A median of 3 and a total of 91 cycles were administered. Mean dose intensity in cycle I was: 5-FU 86%, MMC 87%. Responses were observed in 43%, no change was seen in 29% of the patients. Median overall survival was 9.7 months (10.7 months for patients treated first line). Non-haematological toxicities (NCI CTC grades 3 and 4) were observed in 2 patients, leukopenia and thrombocytopenia grades 3/4 were observed in 50 and 25% of the patients, respectively. Conclusions: Infusional 5-FU/FA plus MMC may safely be used in patients with AGC in the routine clinical setting. This regimen yields response rates and survival data comparable to platinum-based regimen.