About this trial
Transmural healing (TMH) is recognized as a potentially important measure of Crohn's disease (CD) activity but not a formal target. Observational studies suggest that TMH may be associated with better long-term outcomes. The study will evaluate TMH using noninvasive intestinal ultrasound (IUS), a patient-friendly technique that can be performed routinely in clinical practice. The aim of the study is to determine if treating to a target of corticosteroid-free (CS-free) IUS outcomes + clinical symptoms + biomarkers is superior to a target of clinical symptoms + biomarkers alone in achieving CS-free endoscopic remission measured by the Simple Endoscopic Score for Crohn's Disease (SES-CD).
Qualified participants will be randomly assigned in a 1:1 ratio to one of 2 different target treatment groups.
Group 1: Participants will be treated over 48 weeks to achieve a target of corticosteroid-free IUS-based outcomes + clinical remission + biomarker remission. At Week 22 and 30, the IUS-based component of the target will be IUS response and at Week 38, the final treatment target will be TMH. Group 2: Participants will be treated over 48 weeks to achieve a target of corticosteroid-free clinical remission + biomarker remission.
Eligibility criteria
Qualifiers
Adults aged 18 to 80 years, inclusive, at the time of consent;
Moderately to severely active CD at baseline defined by a CDAI score of 220 to 450 inclusive and SES-CD, excluding the presence of narrowing component, ≥6 (or ≥4 for participants with isolated ileal disease);
BWT on IUS of >4.0 mm in the terminal ileum or any colonic segment (excluding the rectum) as assessed by the mean of 2 longitudinal and 2 cross-sectional measurements of the same segment;
Biologic-naïve or have previous exposure (within the last 5 years of the screening date) to no more than 1 advanced therapeutic compound (approved biologic or small molecule drug) for the treatment of their CD. Note: only approximately 15% to 30% of the enrolled population will have had prior exposure to an advanced therapeutic;
Disqualifiers
Current or previous treatment with vedolizumab, etrolizumab, or natalizumab;
Previously exposed to 2 or more compounds or classes of an advanced therapeutic compound (approved biologic or small molecule drug) for the treatment of their CD;
Change to oral corticosteroid therapy dosing within 2 weeks prior to randomization or a corticosteroid dose of >40 mg of prednisone or equivalent at randomization;
Only have inflammation proximal to the terminal ileum that cannot be reached by ileocolonoscopy;
Trial design
Treatments tested in this trial
- Vedolizumab
Treatment groups
Sponsors and collaborators
Alimentiv Inc.
Lead sponsor
Takeda
Collaborator