PATIENT CHARACTERISTICS: Age: 18 and over Performance status: ECOG 0-1 Life expectancy: Not specified Hematopoietic: Absolute neutrophil count at least 1,500/mm3 Platelet count at least 100,000/mm3 Hemoglobin at least 10 g/dL (transfusion allowed) Hepatic: Bilirubin no greater than 1.5 mg/dL SGOT and SGPT no greater than 2 times upper limit of normal (ULN) Alkaline phosphatase no greater than 2 times ULN Renal: Creatinine no greater than 1.2 mg/dL OR Creatinine clearance at least 50 mL/min Calcium no greater than ULN No history of hypercalcemia Other: No active infection No other concurrent malignancy within past 2 years except curatively treated basal cell or squamous cell skin cancer or carcinoma in situ of the cervix No known hypersensitivity to murine proteins Not pregnant or nursing Negative pregnancy test Fertile patients must use effective contraception