8. Patients must meet the following clinical laboratory criteria:Absolute neutrophil count (ANC) >/= 1,000/mm^3 and platelet count >/= 75,000/mm^3. Platelet transfusions to help patients meet eligibility criteria are not allowed within 3 days before study enrollment.Total bilirubin </= 1.5 x the upper limit of the normal range (ULN).Alanine aminotransferase (ALT) and aspartate aminotransferase (AST) </= 3 x ULN.Calculated creatinine clearance >/= 30 mL/min.