| Recruiting | N/A | 225 | Europe, Canada, RoW | Colonoscopy, Intestinal biopsies, Confocal laser endomicroscopy, Intestinal ultrasound, Stool, Blood, Saliva, Clinical follow-up | University College Cork, The Leona M. and Harry B. Helmsley Charitable Trust | Crohn Disease | 10/25 | 05/26 | | |