PREdiCCt - The PRognostic effect of Environmental factors in Crohn’s and Colitis

The focus of PREdiCCt is towards understanding how diet, lifestyle and the bacteria in your gut influence flare and recovery in Crohn’s disease and ulcerative colitis. 


Thank you for your interest in this study – this page will be updated when it is re-open for recruiting. In the meantime, please see other opportunities to take part here and follow us on Twitter for the latest updates.

The team at the University of Edinburgh, led by Dr Charlie Lees, are looking to recruit 3,100 people in remission from Crohn’s or Colitis (illness under control). They plan to follow the disease course of these individuals over 2 years whilst collecting information on the food they eat, their lifestyle and their gut bacteria. Accordingly, the team hope to find a link between these factors and the severity of each participant’s symptom flares. Please watch this YouTube video to see a visual explanation of the study.

This study is open to anyone over the age of 6 years who has a confirmed diagnosis of Crohn’s disease or ulcerative colitis thatis currently well controlled.  ​

Joining the study is easy, just visit their website and complete the form at the bottom of the page. For more info, contact the trial team at:

This research study is NOT funded or organised by Crohn's & Colitis UK and, therefore, we cannot take responsibility for your involvement in the research. It is a patient’s choice to take part.