Clinical trials Below are current clinical trials.66 studies in Gastroenterology and Hepatology (open studies only). Filter this list of studies by location, status and more. A Quality of Life Assessment of Patients with Biliary Obstruction Undergoing Endoscopic or Percutaneous Drainage Rochester, Minn., Scottsdale/Phoenix, Ariz., Jacksonville, Fla. The aim of this study is to compare the quality of life of patients with biliary obstruction who have undergone an endoscopic or percutaneous drainage. The quality of life of patients witll be assessed using the validated "European Quality of Life-5 Dimensions Questionnaire" and the "Intervention-Dependent Questionnaire" which was developed according to current literature as well as the expert opinion of gastroeneterologists. Influence of Diet on Tissue and Body Fluids in Health and Disease Scottsdale/Phoenix, Ariz. This study aims to compare the fatty acid composition of small sample of fat (visceral and subcutaneous) removed at the time of surgery to operative outcomes and the composition calculated from the person’s dietary history and preoperative imaging with MRI/CT scans. This study will also compare the composition of pancreatic fluid collected to that of a sample of fat removed at the time of surgery to drain the collection. Furthermore, we will study the fatty acid composition of drain fluid placed at the time of surgery to that of their fat samples. A Study to Evaluate Encorafenib Plus Cetuximab with/without Chemotherapy to Treat Metastatic Colorectal Cancer Scottsdale/Phoenix, Ariz., Rochester, Minn. The purpose of this study is to evaluate whether encorafenib plus cetuximab (EC), alone or in combination with chemotherapy, can improve clinical outcomes relative to current standard of care chemotherapy in participants with previously untreated BRAF V600E-mutant metastatic colorectal cancer (mCRC). Cohort of Patients With Fatty Liver Disease Jacksonville, Fla. The purpose of this research is to create a registry of patients having or at risk for metabolic liver disease for investigations into the molecular pathogenesis of cirrhosis, liver cancer, and end-stage liver disease. Mucosal and Microbiota Changes During Acute Campylobacteriosis Rochester, Minn. Gastrointestinal (GI) infection with Campylobacter causes inflammation in the bowel and can change bacteria in the gut. Certain individuals with Campylobacter infection are also known to develop chronic bowel problems such as Irritable Bowel Syndrome (IBS). The researchers are doing this study to understand if changes in gut bacteria and gut mucosal lining during an acute infection can help identify individuals who might be at risk for developing problems in the future. A Bio-bank for Patients with Inflammatory Bowel Disease Associated Neoplasia Rochester, Minn. The purpose of this study is to collect blood and stool samples to validate and improve the performance of stool and blood DNA markers for inflammatory bowel disease and colorectal neoplasia critical to the long-term goal of improving effectiveness of neoplasia detection in patients using non-invasive biomarkers to assist colonoscopy and radiographic screening. Pagination Clinical studies PrevPrevious Page Go to page 55 Go to page 66 Go to page 77 Request an appointment Expertise & rankingsResearch July 19, 2025 Share on: FacebookTwitter Mayo Clinic in Rochester, Minnesota, has been recognized as the best Gastroenterology & GI Surgery hospital in the nation by U.S. News & World Report. Learn more about this top honor Gastroenterology and HepatologyDepartmenthomeSectionsOverviewTests & proceduresConditions treatedDoctorsDoctors by location and specialtySpecialty groupsExpertise & rankingsClinical trialsResearchPatient storiesCosts & insuranceNews from Mayo ClinicReferrals Research: It's all about patients Show transcript for video Research: It's all about patients [MUSIC PLAYING] Joseph Sirven, M.D., Professor of Neurology, Mayo Clinic: Mayo's mission is about the patient. The patient comes first. So the mission and research here is to advance how we can best help the patient, how to make sure the patient comes first in care. So in many ways, it's a cycle. It can start with as simple as an idea worked on in a laboratory, brought to the patient bedside, and if everything goes right — and let's say it's helpful or beneficial — then brought on as a standard approach. And I think that is one of the unique characteristics of Mayo's approach to research — that patient-centeredness — that really helps to put it in its own spotlight. SectionsRequest an AppointmentOverviewTests & proceduresConditions treatedDoctorsDoctors by location and specialtySpecialty groupsExpertise & rankingsClinical trialsResearchPatient storiesCosts & insuranceNews from Mayo ClinicReferrals ORG-20308333 Medical Departments & Centers Gastroenterology and Hepatology