Effect of a Practice-wide Anti-TNF Proactive Therapeutic Drug Monitoring Program on Outcomes in Pediatric Patients

John L Lyles1, Aditi A Mulgund2,3, Laura E Bauman1,4

  • 1Division of Gastroenterology, Hepatology, and Nutrition, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA.

Insights

Implementing proactive therapeutic drug monitoring (TDM) for antitumor necrosis factor (TNF) therapy in inflammatory bowel disease significantly improved sustained clinical remission and reduced antidrug antibodies (ADAs). This quality improvement program demonstrated enhanced patient outcomes in pediatric gastroenterology.

Area of Science:

  • Gastroenterology
  • Immunology
  • Pharmacology

Background:

  • Limited data exists on translating proactive antitumor necrosis factor (TNF) therapeutic drug monitoring (TDM) into practice-wide quality improvement (QI) for inflammatory bowel disease (IBD).
  • Assessing the effectiveness of a TDM QI program in a large academic pediatric gastroenterology practice was the focus.

Purpose of the Study:

  • To determine if a TDM QI program improved clinical outcomes in pediatric IBD patients on anti-TNF therapy.
  • To evaluate the impact of proactive TDM on sustained clinical remission, antidrug antibodies (ADAs), and treatment cessation.

Main Methods:

  • Instituted local anti-TNF TDM guidelines to proactively monitor and optimize drug levels (goal >5 μg/mL).
  • Conducted a retrospective single-center cohort analysis comparing outcomes before (pre-TDM) and after (post-TDM) guideline implementation.
  • Assessed sustained clinical remission (SCR22-52) and analyzed the independent effect using multivariable regression.

Main Results:

  • Sustained clinical remission (SCR22-52) increased from 42% in the pre-TDM group to 59% in the post-TDM group (P = 0.004).
  • The post-TDM group showed increased adjusted odds of achieving SCR22-52 (OR, 2.03; P = 0.003).
  • The adjusted risk of high-titer antidrug antibodies (ADAs) was significantly lower (HR, 0.18; P < 0.001), as was cessation related to ADA (HR, 0.45; P = 0.003).

Conclusions:

  • A practice-wide proactive anti-TNF TDM QI program effectively improved key clinical outcomes in pediatric IBD patients.
  • The program led to better sustained clinical remission and reduced the incidence of high-titer ADAs.
  • TDM QI implementation lowered anti-TNF treatment cessation rates related to ADA.
Abstract

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