Gastroenterology
Digestive system clinical trials
Conditions of the stomach, intestines, liver, and the rest of the digestive tract. We’re tracking 7,908 recruiting studies in this area right now.
By phase
- Not applicable4,926
- Phase 21,188
- Phase 1584
- Phase 3466
- Phase 1/Phase 2396
- Phase 4237
- Phase 2/Phase 3111
Top conditions
- Colorectal Cancer492
- Gastric Cancer297
- Pancreatic Cancer292
- Hepatocellular Carcinoma284
- Esophageal Cancer191
- Rectal Cancer176
- Breast Cancer147
- Crohn Disease144
- Ulcerative Colitis141
- Colon Cancer115
- Inflammatory Bowel Diseases108
- Hepatocellular Carcinoma (HCC)106
- Liver Cancer101
- Lung Cancer98
- Pancreas Cancer94
- Esophageal Squamous Cell Carcinoma89
- Ovarian Cancer88
- Cystic Fibrosis78
Leading sponsors
- Fudan University104
- Sun Yat-sen University91
- Mayo Clinic74
- Chinese University of Hong Kong60
- M.D. Anderson Cancer Center58
- Second Affiliated Hospital, School of Medicine, Zhejiang University57
- Assistance Publique - Hôpitaux de Paris55
- Sixth Affiliated Hospital, Sun Yat-sen University50
- National Taiwan University Hospital49
- Cancer Institute and Hospital, Chinese Academy of Medical Sciences48
Where studies are running
- California463
- Arizona177
- Texas148
- Florida135
- Massachusetts127
- New York123
- Alabama122
- Maryland87
- Ohio80
- Pennsylvania72
Recruiting studies7,908 total
- NCT01763125Recruiting
Tumor bank trial for storing your blood sample
This study sets up a “tumor bank,” which means storing and later using your blood sample for future cancer research (or inflammatory disease research). You may be able to join if you currently have exactly one diagnosis—either a cancer or an inflammation condition.
InnsbruckAges 18 years+ - NCT00912717Recruiting
Study of pancreas cancer risk in families and environment
This study looks at factors in the family and the environment that may be linked to pancreatic cancer. It includes people with pancreatic cancer and several types of pancreas-related conditions, as well as some healthy volunteers, and may help researchers understand who is at higher risk.
Pittsburgh, PennsylvaniaAges 18 years+ - NCT00451022Recruiting
Follow-up study for people who received gene-carrying viral vaccines
This is a follow-up study for adults who previously received certain viral vaccines that carry genes (such as vaccinia or fowlpox) through NCI trials or partner sites. The goal is to store and use your leftover samples for future research that may help doctors understand these treatments better.
Bethesda, MarylandAges 18 years+ - NCT00260585Recruiting
Esophageal risk and tissue registry study
This study collects information and, if you already need blood tests or procedures, may take extra small tissue samples (biopsies) to better understand esophageal-related conditions. It may help researchers learn about risk and future management for people with certain esophagus or reflux-related diagnoses.
Pittsburgh, PennsylvaniaAges 18 years+ - NCT00001823Recruiting
Surgery Branch Screening for Cancer Treatment Studies
This is a screening evaluation to see if you might be eligible for cancer treatment research studies at the National Cancer Institute's Surgery Branch. Doctors will review your medical history, imaging, and test results to determine which clinical trials might be right for you.
Bethesda, MarylandAges 18 years+ - NCT00001971Recruiting
Evaluation of patients with liver disease
This research study evaluates people with liver disease or at risk for liver disease, and compares them with healthy volunteers. The goal is to better understand liver disease and improve how doctors diagnose and treat it.
Bethesda, MarylandAges 2–100 - NCT00478712Recruiting
Genetic study of Hirschsprung disease and family members
This study looks at genes in people with Hirschsprung disease and in their first-degree relatives (parents, siblings, and children). It may help researchers understand why Hirschsprung disease happens and how it can vary between families.
New York, New YorkAges 1 week–100 years - NCT00574327Recruiting
Barrett’s and reflux registry at the Kansas City VA
This study follows people with confirmed Barrett’s esophagus (with or without concerning cell changes) and people who have reflux symptoms, to better understand how these conditions progress. It may help by building a Barrett’s registry so doctors can learn which factors predict worsening over time.
Kansas City, MissouriAges 18 years+ - NCT02073500Recruiting
Study of treatments and models for cancer in the belly lining
This study looks at how cancers that spread along the belly lining (“peritoneal surface malignancies”) behave and how different treatment strategies may work. It may help improve how doctors select and test treatments for people who are candidates for CRS-HIPEC, a specific cancer surgery approach.
OsloAges 18 years+ - NCT01650311Recruiting
Study how serotonin signals work in inflammatory bowel disease
This study looks at how the body’s serotonin system behaves in people with Crohn’s disease or ulcerative colitis, compared with healthy people. It may help researchers understand disease biology and why symptoms can differ from person to person.
Hamilton, OntarioAges 19–85 - NCT00345930Recruiting
Study of liver injury after medicines or supplements
This study looks at people (including children over age 2) who develop liver injury that may be caused by a drug or a complementary/alternative medicine (CAM) product. It helps doctors better understand what causes the injury and how to evaluate it.
Los Angeles, CaliforniaAges 2 years+ - NCT01696734RecruitingPhase 3
Domperidone for difficult stomach and reflux problems
This trial studies whether domperidone can help people whose stomach or reflux symptoms did not improve with usual treatments. It focuses on symptoms like slow stomach emptying, hard-to-control acid reflux, or severe indigestion.
Houston, TexasAges 16 years+ - NCT02038517Recruiting
Liver transplant waitlist study for people without diabetes
This study is for people with end-stage cirrhosis who are on the liver transplant waitlist at this hospital. It aims to understand how getting a liver transplant may affect people with and without diabetes-related issues.
Milan, MIAges 18–65 - NCT01401998Recruiting
Study collecting information from people with ARPKD
This study looks at medical records, imaging, and genetic testing for people with autosomal recessive polycystic kidney disease (ARPKD). It may help researchers better understand the condition and how it affects the liver and kidneys.
Washington D.C., District of ColumbiaAges Up to 18 years - NCT00034216Recruiting
Blood Collection Study for Cancer Patients and Healthy Volunteers
This study collects blood samples from people with cancer and healthy volunteers to help researchers understand cancer better. Your blood will be used for laboratory studies that may improve future cancer treatments.
Bethesda, MarylandAges 18 years+ - NCT01102569Recruiting
Genetic research for pancreatic cancer in Ashkenazi Jewish patients
This study looks at genetic (DNA) factors related to pancreatic cancer. It may help researchers understand risks and find ways to improve prevention or treatment for people in the study population.
New York, New YorkAges 18–85 - NCT01048281Recruiting
Study of stomach and esophagus cancer samples
This study looks at stomach (gastric) and esophagus cancer, using clinical information and tissue samples. It may help researchers better understand these cancers and improve future care.
Stanford, CaliforniaAges 18 years+ - NCT01962415RecruitingPhase 2
Reduced-intensity stem cell transplant for non-cancer disorders
This trial tests whether a gentler (reduced-intensity) conditioning treatment before a stem cell transplant works for non-cancer diseases. It uses specific donor stem cell matches and checks heart, lung, liver, and kidney function to help lower transplant stress while still aiming for benefit.
Pittsburgh, PennsylvaniaAges 2 months–55 years - NCT00590239Recruiting
Study for early changes in Barrett’s esophagus
This study focuses on people with Barrett’s esophagus who are coming in for an endoscopy check or for treatment of early surface changes. The goal is to better understand these early warning areas and how to manage them safely.
Kansas City, MissouriAges 18 years+ - NCT00575133Recruiting
Study of people with fatty liver disease
This study follows people who have been confirmed to have fatty liver disease seen on a liver sample. It aims to understand the condition over time and how different causes and health factors may affect it.
Zurich, Canton of ZurichAges 18 years+ - NCT00722228RecruitingPhase 1/Phase 2
Cancer vaccine made from your cells or a donor
This early-phase trial tests a whole-cell cancer vaccine for people with certain metastatic cancers. It aims to help your immune system recognize and fight the cancer, especially when prior chemotherapy hasn’t worked.
JerusalemAges 18 years+ - NCT00943514Recruiting
Study of bronchiectasis and why infections keep coming back
This study follows children (age 5+) and adults with bronchiectasis or ongoing/repeated lung infections to learn what makes infections more likely. It mainly looks at non–cystic fibrosis causes, but may include some related conditions to compare differences.
Bethesda, MarylandAges 5–100 - NCT02000089RecruitingPhase 3
Pancreas screening study for people at high cancer risk
This Phase 3 study tests a structured plan for checking the pancreas early in people with a higher-than-usual risk of pancreatic cancer. The goal is to find changes sooner, when treatment may be easier.
New Haven, ConnecticutAges 18 years+ - NCT01793168Recruiting
Rare disease registry and history study
This study keeps a registry (a structured list) of people with rare diseases and may also track how the condition changes over time. It can help researchers better understand rare illnesses and find gaps in care, which may improve future treatments.
Sioux Falls, South DakotaAges Any age
Common questions
- How many digestive system clinical trials are recruiting?
- Clin2 is tracking 7,908 recruiting gastroenterology studies from the U.S. registry right now, out of 12,480 we cover in this area in total.
- What does “Digestive system” cover here?
- Conditions of the stomach, intestines, liver, and the rest of the digestive tract. We group each study into digestive system based on the conditions it studies, so you can scan the whole therapeutic area at once and drill into a specific condition.
- How do I find a digestive system trial near me?
- Use the search to filter digestive system studies by location and eligibility. Every Clin2 trial page explains the criteria in plain English and offers a short, optional pre-screen for a fit read — the study team makes the final decision.
Other specialties
- Cancer
- Brain & nervous system
- Heart & circulation
- Hormones & metabolism
- Mental health
- Lungs & breathing
- Immune system & allergy
- Women’s health & pregnancy
- Skin
- Blood & lymphatic
- Kidney & urinary
- Infections
- Genetic & congenital
- Bones, joints & muscles
- Pain
- Injuries & trauma
- Mouth & dental
- Eyes & vision
- Ear, nose & throat
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov; specialty groupings are derived from each study’s conditions. Talk with your doctor about whether a specific trial is right for you.