- Serum glutamic oxaloacetic transaminase (SGOT) (aspartate aminotransferase [AST]) and serum glutamate pyruvate transaminase (SGPT) (alanine aminotransferase [ALT]) =< 2.5 x ULN in patients without liver or bone metastases; < 5 x ULN in patients with liver or bone metastases obtained =< 14 days prior to randomization