Crohn's Disease, Active

This is a multicenter non-randomized prospective open label trial of partial enteral nutrition (PEN) among patients with active Crohn's disease (CD) starting standard of care advanced therapy. Our central hypothesis is that combination therapy of PEN and pharmacologic therapy is more efficacious than pharmacologic therapy alone and can be well-tolerated for patients. Participants will choose to either include PEN along with starting their advanced therapy or will choose not to include PEN. 80 participants will be recruited from 15 sites across the United States.

The purpose of this study is to test the effect of an anti-inflammatory diet tailored for patients living in the United States with Crohn's Disease (CD) on clinical symptoms and disease inflammation and to identify biomarkers of response to dietary therapy.

Aim: More insight in pathogenesis of IBS and IBD. Samples are collected in context of an European research project.