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[Multihospital randomized study on adjuvant chemotherapy with mitomycin C and futraful or UFT in gastric cancer--(Part 2). Comparisons between futraful and UFT. North Kyushu Co-operative Study Group for Cancer Chemotherapy].

A comparative multicenter study was carried out on postoperative adjuvant chemotherapy on 243 gastrectomy patients from October 1983 to December 1985. The medications were assigned at random to 2 groups of patients by the envelope method: group A (administered 20 mg of MMC on the day of surgery and 10 mg of MMC on the day after surgery, and started on tegafur at a dose of 600 mg/day 2 weeks after surgery); group B (similarly treated with MMC and started on UFT at a dose of 600 mg/day 2 weeks after surgery). Further, patients presenting in stage IV were administered MMC intravenously every 3 months, starting 4 weeks after surgery. The final drug effect evaluations were made in 210 patients excluding 33 dropouts (13.6%). The incidence of side effects was somewhat higher in group B than in group A, but their frequency was low and no serious symptoms were observed. For patients with poorly differentiated adenocarcinoma and were carried out curative operation, the 3-year survival rate was significantly higher in group B than in group A.