PATIENT CHARACTERISTICS: Age: 18 and over Performance Status: WHO 0-2 Life Expectancy: At least 3 months Hematopoietic: ANC at least 2,000/mm3 Platelet count at least 100,000/mm3 Hepatic: Bilirubin no greater than 1.5 mg/dL Liver function tests no greater than 2 times upper limit of normal (ULN) (unless related to liver metastases, then no greater than 5 times ULN) Renal: Creatinine no greater than 1.4 mg/dL Creatinine clearance at least 60 mL/min Cardiovascular: LVEF greater than 50% (measured by MUGA scan) Other: Not pregnant or nursing Effective contraceptive method must be used during study No active bacterial infections No other nonmaliganant diseases No history of alcoholism or drug abuse No psychosis