10,000 relatives to be tracked in quest to predict Crohn's disease

This study aims to validate a risk score that predicts Crohn's disease in first-degree relatives (parents, siblings, children) of people with the condition. Researchers will collect blood samples and lifestyle information from 10,000 participants aged 16-35 across seven European countries. Participants will be followed every six months to see if they develop symptoms. The goal is to identify who is at highest risk so that early monitoring or prevention strategies can be developed.