The goal of this retrospective study is to learn about dosing patterns in patients starting subcutaneous vedolizumab administration and patient outcomes after starting subcutaneous administration. Patients with IBD who are starting subcutaneous vedolizumab administration between September 1, 2023, and March 31, 2025, as part of normal patient care, will be retrospectively reviewed and analyzed.
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Clinical Remission
Timeframe: baseline with IV dosing, and 3, 6, 9, 12 months after switching to SC