NCT06180382

Comparison of Vedolizumab Treatment to Adalimumab Dose Intensification in Crohn's Disease Patients With Loss of Response or Biomarker Activity to Adalimumab on First Line With Therapeutic Drug Concentration.

Comparison of Vedolizumab Treatment to Adalimumab Dose Intensification in Crohn's Disease Patients With Loss of Response or Biomarker Activity to Adalimumab on First Line With Therapeutic Drug Concentration: A Randomized, Multicentre, Controlled Trial

• Status: Recruiting
• Phase: Phase 4
• Study type: Interventional
• Enrollment: 220 (estimated)
• Sponsor: Centre Hospitalier Universitaire de Saint Etienne · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

A substantial fraction of IBD patients with an initial response to infliximab or adalimumab later experience re-emerging active disease despite ongoing anti-Tumour Necrosis Factor (TNF) agents maintenance therapy. The optimal intervention in patients with secondary loss-of-response (LOR) is still poorly defined, as there are still scant data on how best to choose the next intervention from among dose-intensification, switch to another anti-TNF or switch out of the anti-TNF class. Moreover, according to STRIDE 2 recommendations and CALM study, optimize patients based solely on lack of biological remission (CRP, calprotectin) can be discuss. If CALM study has showed that the intervention arm based on regular monitoring fecal calprotectin, CRP and/or CDAI to optimize patients under adalimumab was significantly associated to an increase rate of mucosal healing that the standard of care strategy based on only clinical activity, TDM was not available to guide drug optimization strategy.

Detailed description

To address these issues, for IFX or ADA therapy, several studies have proposed some algorithms according to which interventions are based on a combined assessment of IFX or ADA drug level and antibodies-to-IFX or ADA (ATI or AAA) levels at the time of therapeutic failure. Thus, IFX or ADA levels, classified as therapeutic or sub-therapeutic, and detectable or undetectable antibodies, are used to assess if LOR is likely due to immunogenicity, to non-immune-mediated pharmacokinetic problems or due to pharmacodynamic issues, and to guide interventions accordingly. In the last AGA recommendations, the authors suggested that in case of secondary LOR under anti TNF drug with therapeutic levels to switch to another class (such as vedolizumab). However, recent studies showed that optimization of dose regimen of the same anti-TNF in these patients may still be associated with clinical response in 25% of patients. Indeed, in a recent bicentric, retrospective and non-randomized study, the investigators showed that IBD patients under ADA maintenance therapy who experience a secondary loss of response and in whom trough levels are \>4.9µg/mL, swapping to another class was significantly better than optimizing ADA, in term of time without discontinuation of treatment.

Conditions

• Crohn's Disease

Interventions

Type	Name	Description
DRUG	Adalimumab	Administration of adalimumab with optimisation either 80 mg every 14 days by subcutaneous injection, or the same dose of 40 mg every 7 days.
DRUG	Vedolizumab	Strategy B: administration of vedolizumab 300mg by infusion at baseline, 14 days, 42 days and 60 days, followed by a dose of 108mg every fortnight by subcutaneous injection.

Timeline

• Start date: 2024-10-31
• Primary completion: 2026-01-01
• Completion: 2027-01-01
• First posted: 2023-12-22
• Last updated: 2025-11-26

Locations

12 sites across 1 country: France