What are the evidence-based recommendations and/or expert opinions about the practice of therapeutic drug monitoring (TDM) of infliximab (IFX) or adalimumab (ADA) in IBD?
Therapeutic drug monitoring is a useful tool for clinical practice, but longitudinal intervention studies are still needed to confirm its effectiveness.
Mitrev N, Vande Casteele N, Seow CH, et al; IBD Sydney Organisation and the Australian Inflammatory Bowel Diseases Consensus Working Group. Review article: consensus statements on therapeutic drug monitoring of anti-tumour necrosis factor therapy in inflammatory bowel diseases. Aliment Pharmacol Ther. 2017 Dec;46(11–12):1037–53. https://www.ncbi.nlm.nih.gov/pubmed/29027257
Following a systematic literature review of anti-TNF therapy and TDM in IBD with evidence graded according to the Australian NHMRC* guidelines, the 5-member steering committee developed an initial set of statements which were revised throughout a modified Delphi process. Selected based upon their publications, expertise, and leadership, the 25 voting members (steering committee and panellists), participated in the first 2 rounds of online voting while only 22 participated in the third in-person round. Consensus (≥80% agreement) was reached on 22 of 24 statements.
Based upon the evidence and recommendations, the authors also proposed clinical algorithms incorporating TDM for patients on anti-TNF with active and quiescent disease. Briefly:
Study Design: Systematic literature review, recommendations developed using a modified Delphi with 3 iterations
Funding: Gastroenterological Society of Australia (GESA)
Level of Evidence: 2b (Oxford Levels of Evidence)
The summary and conclusion in this issue of E-mentoring in IBD pertains to the manuscript(s) being reviewed, and should be considered in the context of what is already known surrounding the topic and incorporated into practice as deemed appropriate by the individual learner.