5. Adequate organ function as defined by the following criteria: Serum aspartate transaminase (AST) and serum alanine transaminase (ALT) ≤3 x upper limit of normal (ULN), or AST and ALT ≤5 x ULN if liver function abnormalities are due to underlying malignancy; Total serum bilirubin ≤1.5 x ULN (except for patients with documented Gilbert's syndrome) ; Absolute neutrophil count (ANC) >= 1500/µL; Platelets >= 90,000/µL ; Hemoglobin >= 9.0 g/dL; Serum creatinine ≤2.0 x ULN