Association of Serum Levels of Ustekinumab, Vedolizumab, and Faecal Calprotectin in Paediatric Patients with Inflammatory Bowel Diseases: A Prospective Observational Study.

ABSTRACT:

Background and objectives

Ustekinumab (USTE) and vedolizumab (VEDO) are increasingly used in paediatric patients with inflammatory bowel diseases (pIBD). However, data on the usefulness of therapeutic drug monitoring (TDM) in children are scarce. The primary objective of this study was to evaluate the association between disease activity, measured by faecal calprotectin (F-CPT), and serum trough levels (TLs) of USTE and VEDO. Secondary outcomes were to explore factors potentially associated with the outcome and exposure, to determine the optimal USTE or VEDO dose that predicts remission (defined as F-CPT < 250 µg/g), to validate our hypothesis using a proof-of-concept cohort (POCC) and to assess the occurrence of serum antibodies to USTE and VEDO.

Methods

This was a prospect

SUBMITTER: Bronsky J 

PROVIDER: S-EPMC12378899 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature