Clinical Research Directory

IUS Predicts Guselkumab Efficacy in Patients With Moderate to Severe Crohn's Disease：a Prospective Study

Crohn's disease (CD) is a chronic non-specific intestinal inflammatory disease with incompletely clarified etiology, which can involve multiple organs and systems , and is prone to severe complications such as intestinal obstruction, perforation, and fistula.Currently, the main therapeutic drugs for CD include aminosalicylates, glucocorticoids, immunosuppressants, biological agents, etc. With the development of medical technology, biological agents have begun to be applied to moderate-to-severe Crohn's disease, providing new treatment options for patients with moderate-to-severe Crohn's disease. Guselkumab is a selective inhibitor of the interleukin-23 (IL-23) p19 subunit.The GALAXI2 and GALAXI3 studies demonstrated that guselkumab can better achieve the therapeutic goal of mucosal healing. The clinical remission rates of guselkumab at week 12 were 47.1% and 47.1%, respectively, and the endoscopic response rates were 37.7% and 36.2%, respectively . Intestinal ultrasound lUsnoninvasive, reproducible, convenient, and inexpensive test that can greatly increase the frequency of assessing treatment response and speed up the clinical decision-making process.The 2019 ECCO-ESGAR guidelines recommend intestinalultrasound for disease monitoring in patients with CD. There are no validated indicators to predict the efficacy of guselkumab treatment in patients with moderate-to-severe CD in the currently available studies. Currently, there are no national orinternational studies in which intestinal ultrasound predicts the efficacy of guselkumab therapy. Therefore, we propose for the first time that intestinal ultrasound be used as a method to predict the response to guselkumab in CD patients, with the aiproviding evidence to guide the development of individualized treatment plans.

Efficacy and Safety of Discontinuing 5-ASA in Patients With Inflammatory Bowel Disease

This study aims to evaluate the long-term outcomes of discontinuing 5-ASA in UC and CD patients receiving stable biologic or immunomodulator therapy using a prospective cohort based in the Busan-Ulsan-Gyeongnam region. It seeks to determine whether discontinuing 5-ASA is a safe treatment strategy in modern IBD management.

Study of Efficacy and Adherence to Subcutaneous vs. Intravenous Vedolizumab in Patients With Inflammatory Bowel Disease Using a Novel Remote MONITORing Intervention

The goal of this observational study is to assess the feasibility and effectiveness of a remote monitoring digital health system on adherence, clinical outcomes, and healthcare utilization in patients with inflammatory bowel disease (Crohn's disease, ulcerative colitis, and inflammatory bowel disease type undetermined) initiating therapy with vedolizumab (Entvyio). The main questions it aims to answer are: 1. Assess and compare adherence to intravenous (IV) and subcutaneous vedolizumab maintenance therapy in patients with IBD using a novel remote monitoring system. 2. Assess symptom response to vedolizumab post induction (week 6-8) and during maintenance therapy (week 22) using a novel remote monitoring system. 3. Assess time to response to vedolizumab during induction (weeks 0-6) using a novel remote monitoring system. Researchers will compare medication adherence between participants using IV and subcutaneous vedolizumab maintenance therapy to see if adherence is lower with self-administration. Participants will be asked to register adherence to medication using the novel remote monitoring system each time they take a dose of vedolizumab and to respond to two questions about bowel symptoms weekly for the first 6 weeks after starting vedolizumab then monthly thereafter for 6 months. Additionally, participants will be asked to enter information regarding demographics and social determinants of health at baseline and other variables listed below at baseline and at weeks 2, 6, 14, and 22 post baseline unless otherwise denoted: * MARS-5 * Healthcare utilization (22 weeks only) * Harvey Bradshaw Index (Crohn's disease only) * Simple clinical colitis activity index (Ulcerative colitis only) * PROMIS Global Health Scale * PROMIS Anxiety * PROMIS Depression * PROMIS Sleep Disturbance * PROMIS Pain Interference * PROMIS Physical Function * IBD Self-Efficacy * Attitudinal Survey (22 weeks only)