- Alanine aminotransferase (ALT) or aspartate amino transferase (AST) >1.2 x ULN; serum creatinine >ULN; hemoglobin <12.0 g/dL; other clinical lab tests (with the exception of ALT, AST, serum creatinine and hemoglobin) outside normal or protocol specified limits that are determined by the Investigator to be clinically significant