Gastroenterology
Digestive system clinical trials
Conditions of the stomach, intestines, liver, and the rest of the digestive tract. We’re tracking 7,916 recruiting studies in this area right now.
By phase
- Not applicable4,936
- Phase 21,188
- Phase 1583
- Phase 3465
- Phase 1/Phase 2396
- Phase 4237
- Phase 2/Phase 3111
Top conditions
- Colorectal Cancer493
- Gastric Cancer298
- Pancreatic Cancer292
- Hepatocellular Carcinoma284
- Esophageal Cancer191
- Rectal Cancer176
- Breast Cancer148
- Crohn Disease144
- Ulcerative Colitis140
- Colon Cancer115
- Inflammatory Bowel Diseases108
- Hepatocellular Carcinoma (HCC)107
- Liver Cancer101
- Lung Cancer99
- Pancreas Cancer94
- Esophageal Squamous Cell Carcinoma89
- Ovarian Cancer88
- Cystic Fibrosis78
Leading sponsors
- Fudan University104
- Sun Yat-sen University91
- Mayo Clinic75
- 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
- California461
- Arizona174
- Texas148
- Florida135
- Massachusetts127
- Alabama123
- New York123
- Maryland87
- Ohio80
- Pennsylvania72
Recruiting studies7,916 total
- 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 - NCT00830557Recruiting
Share information and donate tissue samples for pancreatic illnesses
This study collects health information and tissue samples from people with pancreatic cancer or other pancreatic conditions. Your participation may help researchers better understand these diseases and improve future care.
Phoenix, ArizonaAges 18 years+ - NCT00345553Recruiting
Study for children with biliary atresia
This study enrolls children and young adults with biliary atresia (a condition where bile can’t flow properly from the liver) to learn from their care and outcomes over scheduled visits. It may help researchers understand the disease better and improve future treatment.
Los Angeles, CaliforniaAges 6 months–20 years - NCT00404989Recruiting
Pregnancy drug safety registry for people with HIV treatment
This trial is a pregnancy registry that collects information about birth outcomes when certain HIV medicines are taken during pregnancy. It helps detect any major birth defects so future pregnancies can be safer.
Wilmington, North CarolinaAges 12–60 - NCT01313442Recruiting
Give blood and tumor samples for gastrointestinal cancer research
This trial collects blood and tumor tissue from adults with cancer to help researchers study gastrointestinal cancers. If you’re eligible, your participation mainly involves donating samples for research purposes.
Bethesda, MarylandAges 18 years+ - NCT01852448Recruiting
Study genes affecting insulin in people with cystic fibrosis
This study looks at how genes may affect insulin and “incretin” hormones in people with cystic fibrosis. It may help researchers understand why some people develop blood-sugar problems and how to predict or prevent them.
Philadelphia, PennsylvaniaAges 2 years+ - NCT02021604RecruitingPhase 1
Fluorodopa scan for congenital hyperinsulinism and insulinoma
This Phase 1 study tests a special imaging medicine (fluorodopa F 18) to help doctors better understand congenital hyperinsulinism (HI) patterns in the body. It may help guide treatment decisions to prevent dangerous low blood sugar and protect brain function.
Fort Worth, TexasAges Up to 18 years - NCT02070146Recruiting
Collecting long-term data from people with bowel or anal cancer
This study collects information over time from adults with colorectal, small bowel, or anal cancer. It’s an observational project, meaning it doesn’t test a new drug on you, but your data may help improve care for others and future patients.
's-HertogenboschAges 18 years+ - NCT00500123Recruiting
Alpha-1 genetic and blood testing for people at risk
This study checks whether doing alpha-1 screening (genetic test and a blood level test) can help identify alpha-1 antitrypsin deficiency in people at risk. It may be useful if you have symptoms or a family history, but you haven’t had qualifying testing yet.
Gainesville, FloridaAges Any age - NCT01750619Recruiting
Endoscopic removal of early and cancer GI growths
This trial looks at outcomes after doctors remove abnormal or cancerous growths in the digestive tract using an endoscope (a flexible camera passed through the body). It may help improve how safely and effectively these procedures are done.
San Francisco, CaliforniaAges 18 years+ - NCT00692939RecruitingPhase 1/Phase 2
Stem cell transplant for people with Crohn’s who need new options
This trial studies whether an “autologous” stem cell transplant (using your own cells) can improve Crohn’s disease that has not responded to standard treatments. It may help people who have ongoing, hard-to-control Crohn’s even after medicines and/or who have complications that make surgery risky.
Pittsburgh, PennsylvaniaAges 10–60 - NCT02047994RecruitingPhase 4
Testing and treatment for H. pylori to prevent stomach cancer death
This trial studies whether testing for an infection called H. pylori and using simple blood/screening tests (pepsinogen testing) can help prevent stomach cancer and reduce stomach-cancer-related deaths. You would be followed for health outcomes to see if the approach works better than standard care.
RigaAges 40–64 - NCT00747851Recruiting
Study of immune signals in newborns with early inflammation or infection
This study looks at how immune-related “NETs” might protect or possibly harm newborn babies during early inflammation or infection. It may help doctors understand which immune responses are helpful versus risky in the NICU.
Salt Lake City, UtahAges Up to 1 hour - NCT01479608Recruiting
Liver transplant for colon or rectal cancer liver spread
This trial studies whether a liver transplant can help people with colon or rectal cancer that has spread to the liver (but not elsewhere). It aims to improve outcomes by removing the diseased liver when the cancer has responded to chemotherapy and can still be controlled.
OsloAges 18 years+ - NCT01851694Recruiting
Study incretin hormone response in adults with cystic fibrosis
This study tests how the body’s “incretin” hormones affect insulin (sugar control) in adults with cystic fibrosis and certain blood sugar patterns. It may help explain what drives diabetes risk in cystic fibrosis and how the body responds to these hormone signals.
Philadelphia, PennsylvaniaAges 18 years+ - NCT01915225Recruiting
Collecting solid tumor samples during cancer biopsy or surgery
This trial collects tissue (samples) from people who are already scheduled for biopsy or surgery for certain solid cancers. It aims to improve future testing and research while checking that taking the sample is safe and doesn’t add extra risk.
Bethesda, MarylandAges 2 years+ - NCT01851642Recruiting
Study how lung disease affects white blood cells
This study looks at how lung disease changes a type of blood cell called white blood cells. It may help researchers understand what’s happening in the lungs and how to better monitor or treat lung problems.
Gainesville, FloridaAges 18 years+
Common questions
- How many digestive system clinical trials are recruiting?
- Clin2 is tracking 7,916 recruiting gastroenterology studies from the U.S. registry right now, out of 12,516 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.