The effects of proactive therapeutic drug monitoring vs reactive therapeutic drug monitoring in a virtual biologic clinic, a retrospective cohort study

Background Proactive therapeutic drug monitoring (proactive-TDM) to optimise maintenance infliximab (IFX) trough levels prior to loss of response reduces the risk of treatment failure, inflammatory bowel disease (IBD)-related surgery and hospitalisation when compared with reactive monitoring (reactive-TDM). Aim The aim of this study is to investigate if proactive-TDM in a virtual biologic clinic (VBC) improves patient disease control determined...