PATIENT CHARACTERISTICS: Age: Adult Performance status: SWOG 0-2 Life expectancy: At least 12 weeks Hematopoietic: Absolute neutrophil count greater than 1,500/mm3 Platelet count greater than 100,000/mm3 Hepatic: Bilirubin no greater than 2.0 mg/dL AST no greater than 3.0 times upper limit of normal Renal: Creatinine no greater than 1.5 mg/dL Other: No active infection No other serious systemic disorders No other active malignancies within the past year except curatively treated basal cell skin cancer or carcinoma in situ of the cervix Must have central venous access device (i.e., Infusaport or PASPORT) Not pregnant or nursing Fertile patients must use effective contraception