Higher-Dose Infliximab Induction Achieves Better Maintenance Trough Levels in a National Pediatric IBD Cohort-A Retrospective Study.

Background: Proactive drug monitoring in our national cohort of children with inflammatory bowel disease suggested that 5 mg/kg dosing of infliximab (IFX) was associated with inadequate trough levels (TLs), thus we commenced empiric 10 mg/kg dosing in 2019.

Methods: This was a retrospective study of patients commenced on 5 or 10 mg/kg IFX between 2018 and 2020. The primary outcome was pre-fourth TL ≥5 µg/mL.