PATIENT CHARACTERISTICS: Age: 18 and over Performance status: Karnofsky 70-100% Life expectancy: Not specified Hematopoietic: WBC at least 3,000/mm3 Lymphocyte count at least 500/mm3 Hepatic: Bilirubin no greater than 1.5 mg/dL SGOT no greater than 1.5 times upper limit of normal (ULN) Alkaline phosphatase no greater than 1.5 times ULN Renal: Not specified Cardiovascular: No New York Heart Association class III or IV heart disease Other: No known immunodeficiency or autoimmune disease No other active malignancies within the past 5 years except nonmelanoma skin cancer No clinically significant peripheral neuropathy Not pregnant or nursing Negative pregnancy test Fertile patients must use effective contraception