Gastroenterology
Digestive system clinical trials
Conditions of the stomach, intestines, liver, and the rest of the digestive tract. We’re tracking 7,607 recruiting studies in this area right now.
By phase
- Not applicable4,687
- Phase 21,190
- Phase 1566
- Phase 3457
- Phase 1/Phase 2368
- Phase 4229
- Phase 2/Phase 3110
Top conditions
- Colorectal Cancer480
- Pancreatic Cancer289
- Gastric Cancer283
- Hepatocellular Carcinoma256
- Esophageal Cancer189
- Rectal Cancer168
- Breast Cancer147
- Crohn Disease134
- Ulcerative Colitis129
- Colon Cancer114
- Hepatocellular Carcinoma (HCC)112
- Liver Cancer99
- Lung Cancer95
- Inflammatory Bowel Diseases94
- Ovarian Cancer90
- Pancreas Cancer90
- Esophageal Squamous Cell Carcinoma86
- Cystic Fibrosis76
Leading sponsors
- Fudan University100
- Sun Yat-sen University85
- Mayo Clinic75
- Second Affiliated Hospital, Zhejiang University, School of Medicine56
- Chinese University of Hong Kong55
- M.D. Anderson Cancer Center55
- Assistance Publique - Hôpitaux de Paris53
- Sixth Affiliated Hospital, Sun Yat-sen University51
- National Cancer Institute (NCI)50
- National Taiwan University Hospital45
Where studies are running
- California443
- Arizona189
- Texas140
- Alabama129
- Florida127
- Massachusetts120
- New York120
- Maryland88
- Ohio80
- Illinois69
Recruiting studies7,607 total
- NCT04099134Recruiting
Registry study for pancreatic ductal cancer before treatment
This is a “registry” study that collects health information from adults with pancreatic ductal adenocarcinoma before starting treatment. It may help researchers better understand the disease and how patients are managed in real life.
UlmAges 18 years+ - NCT04025944Recruiting
Study of long-term hepatitis B or C infection
This study looks at people with hepatitis B or C infections that have lasted more than 6 months. It aims to better understand long-term management and how treatments may help over time.
Shanghai, Shanghai MunicipalityAges 18–75 - NCT04037995Recruiting
Real-world study of advanced liver disease in China
This study looks at people with very advanced liver problems to better understand what happens in real life. It may help doctors improve care for advanced cirrhosis and certain liver cancers.
Shanghai, Shanghai MunicipalityAges 18–75 - NCT04012658Recruiting
Study of people with Wilson disease genes and family members
This study follows people who have the genetic cause of Wilson disease, including people who feel well and family members. Researchers want to better understand Wilson disease and what to watch for over time.
FuzhouAges Any age - NCT04036357Recruiting
Study of liver fat disease with heart and metabolism problems
This study looks at people with fatty liver disease and common health issues like obesity, diabetes, high blood pressure, or abnormal cholesterol. It may help researchers understand how liver fat and heart/metabolism problems relate and how they affect health over time.
RomeAges 18–80 - NCT04135664RecruitingPhase 3
Compare surgery vs chemoradiation for early throat cancer
This study compares two ways to treat a type of esophagus cancer: surgical removal (esophagectomy) versus chemoradiation (chemo plus radiation). It is for people with early-stage findings where scans suggest no lymph node spread.
Nanchang, JiangxiAges 18–75 - NCT04140578RecruitingPhase 4
Antibiotic prevention for certain liver disease patients
This trial tests whether taking preventive antibiotics can help people with certain liver conditions avoid infections after an endoscopy-related procedure. It may reduce infection risk, but it also requires that you have no signs of infection and haven’t recently taken antibiotics.
TaipeiAges 20–85 - NCT04172753Recruiting
Online MRI-guided radiation therapy on a 1.5T machine
This trial checks whether it’s practical and safe to deliver radiation treatment using real-time MRI guidance, with the process supported online. It may help patients whose doctors recommend radiation by testing a modern way to plan and deliver treatment more precisely.
Tübingen, Baden-WurttembergAges 18 years+ - NCT04161768RecruitingPhase 3
Antibiotic pill study to prevent repeat belly infection in liver disease
This study tests whether taking norfloxacin plus itopride helps prevent another episode of spontaneous bacterial peritonitis (a serious belly infection) in people with cirrhosis and fluid buildup in the abdomen. It compares that combo to norfloxacin alone to see which approach better lowers repeat infections.
TantaAges Any age - NCT04161053RecruitingPhase 3
Nitazoxanide to prevent repeat liver brain episodes
This Phase 3 trial tests whether nitazoxanide can help stop hepatic encephalopathy (a “liver-to-brain” confusion problem) from coming back. It’s for adults with cirrhosis who have had at least one past episode, aiming to improve safety and prevent recurrence.
TantaAges 20–65 - NCT04168099RecruitingPhase 3
Oral gemifloxacin versus IV cefotaxime for peritonitis
This trial compares two antibiotic treatments for spontaneous bacterial peritonitis—one taken by mouth (gemifloxacin) versus one given through a vein (cefotaxime). It may help find the best way to treat this infection and improve recovery.
TantaAges 18 years+ - NCT04217733RecruitingPhase 3
Ethosuximide plus pentoxifylline for IBS belly pain
This Phase 3 study tests whether two medicines (ethosuximide and pentoxifylline) can reduce belly pain from irritable bowel syndrome (IBS). It may help people whose IBS pain has been moderate to severe recently and who can keep their current IBS treatment steady.
TantaAges 18 years+ - NCT03732131Recruiting
Study of stool bacteria transplant to help people with infections
This study looks at fecal microbiota transplantation (FMT), which is a stool bacteria transplant, to help adults whose symptoms persist or return, often from C. difficile infection. If you’re already planning or receiving FMT for certain conditions, this trial may add information on how it helps and who benefits.
LahtiAges 18–120 - NCT03894228Recruiting
Study of Crohn’s and colitis medicines during pregnancy and breastfeeding
This registry study tracks outcomes for mothers with inflammatory bowel disease (IBD) and their babies during pregnancy and breastfeeding while using IBD medicines. It aims to better understand the safety of these medicines so future pregnancies can be managed more confidently.
Santiago de Compostela, A CoruñaAges 18 years+ - NCT04340817Recruiting
Study of fatty liver in Nordic countries
This study looks at people with non-alcoholic fatty liver disease (fat buildup in the liver without heavy alcohol use). It may also include healthy volunteers for comparison, helping researchers understand the condition better.
Hvidovre, Capital Region DenmarkAges 18 years+ - NCT03853447Recruiting
Study of inflammation changes from pancreas flare to chronic disease
This trial studies how “inflammation” in the pancreas changes over time—going from a first or repeated attack to long-term (chronic) pancreatitis. It may help doctors understand what drives progression and identify people at higher risk for chronic disease.
Hvidovre, Capital Region DenmarkAges 18–70 - NCT04371042Recruiting
Study of liver disease and genes in people with fatty liver
This study collects information about metabolic and unexplained (cryptogenic) liver disease and looks at “omics” tests, which are lab tests that measure patterns in blood or tissue to learn what drives the disease. It may help researchers better understand fatty liver and related serious complications, like liver scarring and liver cancer.
Roma, Rome/lazio/italyAges 18 years+ - NCT04365751Recruiting
Microwave ablation versus surgery for liver cancer
This trial compares two ways to treat hepatocellular carcinoma (a type of liver cancer): microwave ablation and laparoscopic hepatectomy (keyhole liver surgery). It may help find which option works better for tumor control and recovery in people with limited, non-spread cancer.
Beijing, Beijing MunicipalityAges 18 years+ - NCT04307901Recruiting
Test a capsule that checks the colon when colonoscopy isn’t finished
This trial tests whether a swallowable camera capsule can safely check the colon and find possible tumor-related issues when a standard colonoscopy can’t be completed. It may help people who can’t or don’t want another colonoscopy right away.
SvendborgAges 18 years+ - NCT04415983RecruitingPhase 3
Nitazoxanide for stomach infection in children
This trial studies nitazoxanide to treat Helicobacter pylori, a common stomach infection, in children. If you test positive for this infection and haven’t been treated for it before, you may be able to join.
TantaAges Up to 18 years - NCT04288999RecruitingPhase 3
Surgery plus chemo versus chemo-radiation then surgery for recurrent rectal cancer
This study compares two treatment plans for locally recurrent rectal cancer: (1) surgery plus chemo, or (2) chemo plus radiation first, then surgery, followed by chemo. It aims to see which approach works better in controlling the cancer and helping patients recover.
ChibaAges 20–80 - NCT04150744RecruitingPhase 2
New immune drug plus immunotherapy for liver cancer
This Phase 2 trial tests whether adding a new drug (RFA) to an immunotherapy medicine (carrizumab) works better than carrizumab alone for hepatocellular carcinoma, a type of liver cancer. It may help people whose tumors cannot be removed or transplanted and who have not started whole-body (systemic) cancer treatment yet.
Hangzhou, ZhejiangAges 18–75 - NCT04477967Recruiting
Creating a liver transplant biobank for children
This trial sets up a long-term collection of medical information and samples from children who have had a liver transplant. It helps doctors study outcomes over time and improve care for future patients.
Chongqing, Chongqing MunicipalityAges 1 month–18 years - NCT03643718Recruiting
Emergency surgery and trauma patient registry online
This trial is a web-based registry that collects information about people who need emergency surgical or non-surgical treatment for sudden (acute) problems. Your information can help doctors better understand and improve emergency care and decision-making.
PisaAges Any age
Common questions
- How many digestive system clinical trials are recruiting?
- Clin2 is tracking 7,607 recruiting gastroenterology studies from the U.S. registry right now, out of 11,926 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.