Disease Crohn

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.

Study Design: A Prospective Multicenter Randomized Controlled, Open-label Non-inferiority Study to Investigate the Efficacy of Subcutaneous (SC) Infliximab (IFX) with and without Immunomodulators during Induction treatment in Moderate to Severe Crohn's Disease. Primary endpoint: The proportion of patients in corticosteroid-free clinical remission (as defined by a Crohn's disease activity index (CDAI)\<150) and endoscopic response (as defined by a simple endoscopic score for Crohn's disease (SES-CD) drop of at least 50%) at week 26. Accrual and feasibility: This study will enroll 158 subjects at approximately 20 sites in the Netherlands (peripheral and academic hospitals). The estimated enrollment is 0.5 patient/centre/month leading to an inclusion duration of 16 months once all centres are open. The first enrolment is anticipated in Q1 2021. Treatment, dosage and administration: Eligible patients will be randomized to receive SC IFX monotherapy (240mg at week 0 and week 2 and then 120mg every other week (EOW) OR SC IFX (240mg at week 0 and week 2 and then 120mg EOW) in combination with immunosuppression.