Vedolizumab Induces Remission in Two Cases of Ulcerative Colitis With Upper Gastrointestinal Involvement.

Ulcerative colitis (UC) predominantly affects the colon; upper gastrointestinal involvement (UGI) has been reported, but no established treatments exist. We report two cases of UC with concomitant UGI that showed positive responses to vedolizumab therapy. Case 1 involved a 29-year-old man who developed continuous inflammation extending from the stomach to the jejunum 1 month after an initial UC diagnosis. Intravenous prednisolone provided clinical remission; however, maintenance therapy with oral azathioprine was unsuccessful. Vedolizumab was initiated. Three months later, esophagogastroduodenoscopy (EGD) and colonoscopy confirmed the resolution of inflammation. Case 2 involved a 19-year-old man diagnosed with UGI via endoscopy while being evaluated for nausea and fever during UC treatment. 5-aminosalicylic acid and prednisolone therapies were ineffective; therefore, vedolizumab was administered. Three months later, EGD confirmed mucosal healing. Both patients have maintained clinical remission for >2 years. To our knowledge, this is the first report of UC with UGI involvement that was successfully treated with vedolizumab. These findings suggest that vedolizumab is effective and safe for UGI treatment.