Clinical trials Below are current clinical trials.64 studies in Gastroenterology and Hepatology (open studies only). Filter this list of studies by location, status and more. A Study to Develop a Biorepository of Blood Samples from Cancer Patients Participating in the Gemini (IRB 19-006717) Protocol Jacksonville, Fla., Scottsdale/Phoenix, Ariz. The purpose of this study is to develop a biorepository of blood samples from cancer patients participating in the Gemini (IRB 19-006717) protocol. These samples will be used for future biomarker discovery and other translational studies. A Study to Evaluate the Therapeutic Effectiveness of Rifaximin in Diabetic Gastroparesis Patients Using Bloating as the Primary Endpoint Jacksonville, Fla. The primary purpose of this study is to prospectively assess symptoms of bloating (severity, prevalence) in patients with diabetic gastroparesis. Evaluating Markers which Might be a Predictor of Pancreatic Cancer or Precancer by Analyzing the Secretions (fluid) from a Pancreatic cyst Rochester, Minn. The purpose of this study is to evaluate molecular markers which might be a predictor of pancreatic cancer or precancer by analyzing the secretions (fluid) from a pancreatic cyst, pancreas fluid and tissue from a resected pancreatic cyst. Symptoms During a Gastric Emptying Study Rochester, Minn. To understand the utility of measuring stomach emptying, symptoms during a stomach emptying, and blood markers of body metabolism. Minimally Invasive Molecular Approaches for the Diagnosis of Barrett's Esophagus and Esophageal Adenocarcinoma Rochester, Minn., Mankato, Minn., Jacksonville, Fla., Austin, Minn., Eau Claire, Wis., Scottsdale/Phoenix, Ariz. This study will evaluate if the sponge capsule device can accurately detect the presence of Barrett's Esophagus and prevalent dysplasia/adenocarcinoma detection, in a screening population, with and without chronic gastroesophageal reflux disease. Study of Pembrolizumab (MK-3475) vs Standard Therapy in Participants With Microsatellite Instability-High (MSI-H) or Mismatch Repair Deficient (dMMR) Stage IV Colorectal Carcinoma (MK-3475-177/KEYNOTE-177) Rochester, Minn., Scottsdale/Phoenix, Ariz. In this study, participants with MSI-H or dMMR advanced colorectal carcinoma will be randomly assigned to receive either pembrolizumab or the Investigator's choice of 1 of 6 standard of care (SOC) chemotherapy regimens for the treatment of advanced colorectal carcinoma. The primary study hypothesis is that pembrolizumab will prolong progression-free survival (PFS) or overall survival (OS) compared to current SOC chemotherapy. In-home Versus In-Clinic Subcutaneous Nivolumab Administration Through Connected And Remote Cancer CARE Beyond Walls Jacksonville, Fla. The purpose of this study is to evaluate the impact of the location of SQ Nivo administration, at the infusion center or in the home, on patient preference and acceptability, safety, patient reported outcomes (PROs), and clinical outcomes. 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). Pagination Clinical studies PrevPrevious Page Go to page 44 Go to page 55 Go to page 66 Go to page 77 NextNext Page 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