The following clinicians contributed to this briefing:
Prof Mohammad Ilyas, professor of pathology, Faculty of Medicine and Health Sciences, University of Nottingham. Did not declare any interests.
Dr Anjan Dhar, consultant gastroenterologist, County Durham and Darlington NHS Foundation Trust. Dr Dhar is a lead investigator for the PROFILE trial.
Dr Robert Logan, consultant gastroeneterologist, Kings College Hospital NHS Foundation Trust. Did not declare any interests.
Representatives from the following patient organisations contributed to this briefing:
Crohn's and Colitis UK.