P609 Uncertain usefulness of infliximab trough levels for therapeutic decision-making in inflammatory bowel disease patients on infliximab maintenance therapy

It has been suggested that infliximab (IFX) trough levels (ITL) may be useful in different clinical settings in inflammatory bowel disease (IBD) such as secondary loss of response, prevention of primary non-response or even in clinically stable patients on maintenance therapy. However, to date, no controlled study has demonstrated its usefulness in clinical practice. Our aim was to assess the economic and clinical impact of the additional use of...