Ulcer Size After Induction Therapy Performs Better Than Symptom Assessment for Prediction of One Year Endoscopic Remission in Crohn's Disease: A Post Hoc Analysis.

Crohn's disease patients with ulcers ≥5 mm after induction therapy are less likely to achieve 1-year ER. Postinduction PRO severity does not offer additional prognostic information. This may suggest that objective measures of disease such as endoscopic ulcer size should be considered over symptom assessments for determining clinical response to therapy and utilized in trials for maintenance therapy.