PATIENT CHARACTERISTICS: Age: 18 and over Performance status: ECOG 0-2 Hematopoietic: (within 14 days prior to entry) WBC at least 3,000 Platelets at least 100,000 Hematocrit at least 30% (may be transfused) Hepatic: (within 14 days prior to entry) Bilirubin less than 2.0 mg/dl PT and PTT normal Renal: (within 14 days prior to entry) Creatinine less than 2.0 mg/dl Cardiovascular: No MI within 6 months No medication for arrhythmia No medication for CHF Hypertension that is stable off medication allowed Pulmonary: pO2 at least 60 mm Hg in patients with primary lung cancer or symptomatic pulmonary disease Reasonable respiratory reserve No dyspnea at rest No requirement for supplemental oxygen Other: No familial history of malignant hyperthermia No chronic underlying immunodeficiency disease No HIV seropositivity No active infection requiring antibiotic therapy No other serious intercurrent illness No concurrent malignancy No pregnant or nursing women Adequate contraception required of fertile women