Gastroenterology
Digestive system clinical trials
Conditions of the stomach, intestines, liver, and the rest of the digestive tract. We’re tracking 7,890 recruiting studies in this area right now.
By phase
- Not applicable4,918
- Phase 21,185
- Phase 1582
- Phase 3465
- Phase 1/Phase 2393
- Phase 4236
- Phase 2/Phase 3111
Top conditions
- Colorectal Cancer491
- Gastric Cancer296
- Pancreatic Cancer290
- Hepatocellular Carcinoma283
- Esophageal Cancer191
- Rectal Cancer176
- Breast Cancer146
- Crohn Disease144
- Ulcerative Colitis141
- Colon Cancer115
- Inflammatory Bowel Diseases108
- Hepatocellular Carcinoma (HCC)106
- Liver Cancer100
- Lung Cancer97
- Pancreas Cancer94
- Esophageal Squamous Cell Carcinoma88
- Ovarian Cancer88
- Cystic Fibrosis78
Leading sponsors
- Fudan University104
- Sun Yat-sen University90
- 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
- Arizona177
- Texas149
- Florida133
- Massachusetts128
- New York123
- Alabama122
- Maryland86
- Ohio80
- Pennsylvania72
Recruiting studies7,890 total
- NCT06273644Recruiting
Carbohydrate-rich diet for acute intermittent porphyria
This trial tests whether a diet high in carbohydrates can help treat acute intermittent porphyria (AIP), a condition that can cause attacks of pain and other symptoms. If you have AIP, this study wants to see if eating more carbs can prevent or manage attacks.
Bodø, NordlandAges 18 years+ - NCT06274190Recruiting
Better bowel symptom tracking after rectal cancer treatment
This study develops an electronic diary to help track and manage bowel symptoms after rectal cancer surgery or active surveillance. It aims to create personalized care plans to improve your quality of life.
Leuven, Vlaams-BrabantAges 18 years+ - NCT06274554RecruitingPhase 3
Testing Antifungal Therapy for Crohn's Disease
This study tests whether adding an antifungal drug (fluconazole) to standard Crohn's disease treatment helps improve symptoms. It's for people with mild to moderate Crohn's who have not used antifungal medications recently.
New York, New YorkAges 18 years+ - NCT06274840Recruiting
COVID-19 antibodies in cystic fibrosis
This study looks at how the body makes antibodies (proteins that fight infection) against COVID-19 in people with cystic fibrosis. It helps doctors understand how well your immune system responds to the virus or vaccine.
LisbonAges Any age - NCT06274879RecruitingPhase 2
Radiofrequency ablation for bile duct cancer
This trial tests a procedure that uses heat (radiofrequency ablation) to treat bile duct cancer that can't be removed by surgery. If you have this type of cancer and are starting standard treatment, this study wants to see if adding this heat treatment is safe and might help.
BernAges 18 years+ - NCT06275204Recruiting
H. pylori test and treat study for young adults
This study tests and treats young adults for H. pylori, a stomach bacteria, to see if treating it reduces future health risks. If you haven't been treated for H. pylori before, you may join.
Zagreb, City of ZagrebAges 30–34 - NCT06275958RecruitingPhase 3
Lower starting chemo dose for older adults with metastatic colorectal cancer
This study tests whether starting with a lower dose of chemotherapy works as well as the standard dose for people aged 70 and older with metastatic colorectal cancer. The goal is to find a treatment that is effective but gentler, with fewer side effects.
's-HertogenboschAges 70 years+ - NCT06277024Recruiting
Combination therapy for advanced HER2-negative stomach cancer
This trial tests a combination of immunotherapy (candenizumab), a targeted therapy (lenvatinib), and chemotherapy (SOX regimen) for advanced HER2-negative stomach or gastroesophageal junction cancer that has not been treated before. The goal is to see if this combination is safe and works better than standard treatments.
Fuzhou, FujianAges 18–75 - NCT06277531Recruiting
Testing bile DNA to diagnose unclear bile duct strictures
This trial looks at whether DNA fragments in bile can help doctors tell if a bile duct stricture is cancerous or not. It may provide a less invasive way to get a clear diagnosis.
Beijing, Beijing MunicipalityAges 18–85 - NCT06280105RecruitingPhase 2
Testing cadonilimab and regorafenib for liver cancer after other treatments fail
This trial tests a combination of two drugs, cadonilimab and regorafenib, for people with liver cancer that has worsened after treatment with camrelizumab and apatinib. The goal is to see if this new combination can help control the cancer.
Fuzhou, FujianAges 18–75 - NCT06280664Recruiting
Closing the hiatal gap for GERD relief
This trial tests if surgically closing a small hiatal defect helps reduce acid reflux (GERD) symptoms. It is for people who are surgical candidates and have confirmed acid exposure on testing.
Chicago, IllinoisAges 18–50 - NCT06280495RecruitingPhase 2/Phase 3
Targeted drugs plus chemo before surgery for colon cancer with liver spread
This trial tests whether adding two targeted drugs (serplulimab and bevacizumab) to standard chemotherapy before surgery can improve outcomes for people with colorectal cancer that has spread to the liver. It is for those whose cancer has certain genetic features and is considered resectable.
Guangzhou, GuangdongAges 18–75 - NCT06281145Recruiting
Stress reduction for breast or colon cancer patients
This study tests a stress-reducing program for people with breast or colon cancer. It uses a technique called heart rate variability biofeedback to help you manage stress during treatment.
BratislavaAges 18 years+ - NCT06281678RecruitingPhase 2
Study of IBI363 for advanced solid tumors
This trial tests a new drug called IBI363 for people with advanced solid tumors. It aims to see if the drug is safe and effective. You may be able to join if you are generally well and have not had other cancer treatments recently.
San Francisco, CaliforniaAges 18 years+ - NCT06282016Recruiting
Risk factors for neuroendocrine tumors in Bavaria
This study looks at medical records from people in Bavaria to find out what might increase the risk of developing neuroendocrine neoplasms (a rare type of tumor). By reviewing routine health data, researchers hope to discover early signs or risk factors that could help with future detection and care.
Nuremberg, BavariaAges Any age - NCT06282575RecruitingPhase 3
Zanidatamab plus chemo for advanced HER2-positive bile duct cancer
This phase 3 trial tests whether adding zanidatamab (a targeted antibody) to standard chemotherapy can improve outcomes for advanced HER2-positive biliary tract cancer. If you have this type of cancer that has spread or can't be removed, and you've had little or no prior treatment, this study might be an option.
Duarte, CaliforniaAges 18 years+ - NCT06283160Recruiting
Pancreatic fistula study after Whipple surgery
This study looks at people having planned Whipple surgery (a type of pancreas surgery) to understand why some develop a leak called a pancreatic fistula. Researchers will study your blood and immune system to find ways to predict and prevent this complication.
BesançonAges 18 years+ - NCT06284577Recruiting
Quality of life and gut health in children with cystic fibrosis
This study looks at how a drug called ETI (a combination of three medicines) affects the quality of life and gut health of children with cystic fibrosis. If you or your child has the right type of CF and is between 2 and 18 years old, this trial may help us understand how treatment improves daily life and digestion.
OsloAges 2–18 - NCT06284876RecruitingPhase 3
Testing Ilaprazole for Preventing NSAID-Related Stomach Ulcers
This study tests a new medicine called Ilaprazole 10 mg to see if it can prevent stomach ulcers caused by NSAIDs (pain relievers like ibuprofen). If you take NSAIDs regularly and have a higher risk of ulcers, this trial may help protect your stomach.
SeoulAges 19 years+ - NCT06286709RecruitingPhase 2
Fecal transplant for PSC and colitis
This trial tests whether a fecal (stool) transplant from a healthy donor can help people with both PSC and inflammatory bowel disease. It aims to see if the treatment can improve liver health and reduce inflammation. You must have early to moderate liver scarring and be on stable medications.
BirminghamAges 18 years+ - NCT06287112Recruiting
Preventing gallbladder inflammation after bile duct drainage
This study tests whether a new drainage method can help prevent acute cholecystitis (inflammation of the gallbladder) in people who need a bile duct procedure. If you are at risk for gallbladder issues, this approach might reduce complications.
SeoulAges 19 years+ - NCT06287814Recruiting
Blood test to detect leftover cancer DNA in colorectal cancer patients
This study uses a simple blood test (liquid biopsy) to look for tiny bits of tumor DNA remaining after colorectal cancer surgery. It aims to see if the test can help predict whether the cancer will come back, especially in people with stage III cancer who will receive chemotherapy.
Montpellier, HéraultAges 18 years+ - NCT06287671Recruiting
Colorectal Surgery Tissue Study for Better Understanding of Disease
This study is collecting tissue samples from people having surgery on their colon or rectum to better understand colorectal diseases. It may help researchers learn more about conditions like cancer, polyps, or inflammatory bowel disease.
HillerødAges 18 years+ - NCT06287723Recruiting
Blood test for cancer DNA after liver surgery in colorectal cancer
This study uses a simple blood test (liquid biopsy) to look for tiny bits of cancer DNA after surgery for colorectal cancer that spread to the liver. It aims to see if this test can find cancer earlier than standard scans, which may help guide future treatment decisions.
MontpellierAges 18 years+
Common questions
- How many digestive system clinical trials are recruiting?
- Clin2 is tracking 7,890 recruiting gastroenterology studies from the U.S. registry right now, out of 12,399 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.