[Combination chemotherapy of cis-diamminedichloroplatinum (CDDP) and 5-fluorouracil (5-FU) in gastrointestinal tumors].

Twenty-five patients with gastrointestinal tumors (stomach 13, colon 8, pancreas 2, liver 2) were treated with a combination chemotherapy regimen consisting of CDDP (30 mg/m2/day d 1, 2) and 5-FU (500 mg/m2/day d 1-3), repeated every 3 or 4 weeks. The patients comprised 14 males and 11 females with a median age of 50 years (range 24-69), and a median performance status of 80% (range 40-100%). Thirteen patients had had prior chemotherapy. Partial response was observed in 2 patients (colon and liver), which lasted for 2 months each, respectively. No objective response was observed in 11 patients evaluable for gastric cancer. Non-hematological toxicities were nausea (92%), vomiting (56%), proteinuria (17%), transient elevation of BUN (8%), and hepatotoxicity (11%). Leukopenia and thrombocytopenia were observed in 71% and 25%, respectively. However, these toxicities were mild to moderate, and generally well tolerated.