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First received: May 09, 2026

Clinical Trial: Upadacitinib in Isolated Small Bowel Versus Non-Small Bowel Crohn's Disease

Study Status: COMPLETED

Recruit Status: COMPLETED

Condition: Crohn Disease
Upadacitinib

Study Type: OBSERVATIONAL


Official Title: Comparable Efficacy of Upadacitinib in Isolated Small Bowel Versus Non-Small Bowel Crohn's Disease: A Retrospective Cohort Study

Brief Summary: Background \& Aims: Isolated small bowel Crohn's disease (CD) is defined by involvement of the ileum, jejunum, or extensive small intestinal segments in the absence of colonic disease. This phenotype presents a therapeutic challenge, as biologic agents demonstrate reduced efficacy in this subgroup. Data on the use of upadacitinib specifically for isolated small bowel CD remain limited. This study aimed to evaluate the efficacy of upadacitinib in patients with this phenotype using the International Bowel Ultrasound…

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