Task: Answer Verification
Input (English): Question: Do thiopurine methyl-transferase activity and azathioprine metabolite concentrations predict clinical outcome in thiopurine-treated inflammatory bowel disease patients?
Answer: Our results do not support determination of TPMT activity or 6TGN concentrations to predict treatment outcome, and no useful serum metabolites threshold value to adjust the drug's dose was identified.
Output (English): no