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
- NCT05697393Recruiting
Testing a pressure band to ease GERD throat and cough symptoms
This study tests whether using an “external Shaker pressure band” can reduce GERD symptoms that affect the throat and airway, like chronic cough, choking, or food coming back up. It also checks whether these people can safely tolerate the study measurements through the nose.
Milwaukee, WisconsinAges 18–85 - NCT05697562Recruiting
Embolization treatment for hemorrhoid bleeding
This trial studies a procedure that blocks blood flow to bleeding hemorrhoids (called superior rectal arterial embolization). It may help people with hemorrhoid bleeding who are being considered for treatment, especially when bleeding is significant.
JetteAges 18 years+ - NCT05697991Recruiting
Study of fatty liver in adults with type 2 diabetes
This study looks at people with type 2 diabetes who also have fatty liver. The goal is to learn more about this condition in a Saudi group and test approaches that could improve care.
Riyadh, Select A State Or ProvinceAges 18–60 - NCT05698745Recruiting
Study of the immune features soon after bowel disease starts
This study looks at immune system changes in people around the time inflammatory bowel disease (IBD) is first diagnosed, and compares different groups (new, very recent, or not found on scope). It may help researchers understand what the immune system looks like early in IBD and later in people who don’t show it on colonoscopy.
Santiago de Compostela, A CoruñaAges 18 years+ - NCT05698992Recruiting
Rehab program after surgery for esophageal or stomach cancer
This trial tests a rehabilitation and recovery program for people with esophageal or stomach cancer who are planning curative surgery at Skåne University Hospital. It may help you regain strength and function after treatment, using a structured recovery approach.
Lund, LundAges 18 years+ - NCT05700825RecruitingPhase 2
Rehab training to improve swallow safety in Parkinson’s
This trial tests a rehabilitation approach aimed at improving airway protection during swallowing in people with Parkinson’s disease. It may help reduce the risk of food or liquid going down the wrong way by improving swallow safety.
West Lafayette, IndianaAges 50–90 - NCT05702229RecruitingPhase 2
Study of combined medicines for advanced stomach cancer with Claudin18.2
This Phase 2 study tests new combination treatments for advanced stomach or stomach-esophagus junction cancer that cannot be removed by surgery. It may help people whose tumors are positive for a marker called Claudin18.2, which the study uses to choose who can receive the treatment.
Los Angeles, CaliforniaAges 18 years+ - NCT05702775Recruiting
Drain gallbladder with ultrasound endoscopy if surgery isn’t possible
This trial compares a new ultrasound-guided way to drain the gallbladder using an endoscope versus non-endoscopic treatments. It’s for adults with acute gallbladder inflammation (from stones) who cannot have surgery, aiming to reduce complications and improve recovery.
Pamplona, NavarreAges Any age - NCT05704413Recruiting
Biobank study using gut tissue in bowel disease
This study collects and stores digestive (bowel) tissue to better understand how gut bacteria may affect diseases like ulcerative colitis or Crohn’s disease. It may help researchers find future ways to improve care for people with these conditions.
ParisAges 18 years+ - NCT05704036RecruitingPhase 4
Estrogen use and bone health in women with cystic fibrosis
This observational study looks at how taking (or not taking) estrogen affects bone health in women with cystic fibrosis (CF). If you may have low estrogen, it also explores whether estrogen levels and symptoms relate to bone density over time.
Baltimore, MarylandAges birth–100 years - NCT05704010Recruiting
Video pill camera test for Lynch syndrome
This trial studies whether a swallowable camera (video capsule endoscopy) can help look inside the small intestine for people with Lynch syndrome. It may help doctors detect problems earlier or more clearly by improving how the small bowel is checked.
Milan, LombardyAges 18 years+ - NCT05704348Recruiting
Test to reduce reflux after sleeve stomach surgery
This study looks at whether a treatment plan called “Sleeve-pex” can reduce heartburn and reflux after sleeve gastrectomy. If you’re planning this surgery and can complete symptom questionnaires, you may be able to join and help compare outcomes between groups.
FørdeAges 18 years+ - NCT05704530Recruiting
Liquid blood tests for early esophageal cancer
This trial studies how well “liquid biopsy” blood tests can work in people with newly diagnosed, operable esophageal cancer. It may help doctors monitor the cancer and guide treatment planning alongside standard care.
AntwerpAges 18 years+ - NCT05705219Recruiting
3D ultrasound scan to guide treatment decisions in liver cancer
This study tests whether a special 3D ultrasound scan (using contrast) can help support decisions for people with colorectal cancer that has spread to the liver. If you have planned new cancer treatment, the scan may add information to help doctors guide care.
Palo Alto, CaliforniaAges 18 years+ - NCT05706779RecruitingPhase 2
Encorafenib plus cetuximab before surgery for BRAF-mutated colon cancer
This trial tests whether giving encorafenib and cetuximab before surgery can shrink or control BRAF-mutated colon or upper rectal cancer and make surgery more effective. It also checks whether this approach is safe and helps patients do better overall.
ParisAges 18 years+ - NCT05706558Recruiting
Study of esophageal cancer surgery records
This study looks back at past patients’ medical and pathology records from esophageal cancer surgeries. It may help improve how doctors understand which advanced tumors should be treated, by reviewing outcomes in specific tumor stages.
New York, New YorkAges 18 years+ - NCT05708898Recruiting
Testing a throat exerciser to improve swallowing
This trial studies whether using an external throat exerciser helps people with swallowing problems (dysphagia) move food more safely and reduce the risk of choking. You would do swallowing rehab exercises, with the goal of preventing aspiration (food or liquid going into the airway).
Milwaukee, WisconsinAges 18 years+ - NCT05708885Recruiting
Testing a tool to change esophagus muscle movement
This study looks at how a device affects how the esophagus muscles squeeze and relax. It may help people better understand swallowing problems, even if their usual esophagus test looks normal.
Milwaukee, WisconsinAges 18–90 - NCT05708911Recruiting
Testing a throat exercise and swallowing measurements
This study tests a device and exercises designed to improve or assess the swallowing process. It uses measurements taken through the nose to understand how the throat and swallowing muscles work.
Milwaukee, WisconsinAges 18–85 - NCT05709249RecruitingPhase 3
Chinese herbal medicine to help prevent colon cancer return
This Phase 3 study tests whether a Chinese herbal “decoction” (called XLJDOD) given after surgery and chemo can lower the chance that colon cancer comes back. It may help people with higher-risk colon cancer (Stage IIIB or IIIC) stay cancer-free longer.
NanjingAges 20–80 - NCT05710809Recruiting
Exercise and health check study for older colorectal cancer patients
This trial looks at sarcopenia (loss of muscle strength/size) and vertigo (feeling dizzy or off-balance) in older adults with colorectal cancer. It tests whether a structured, exercise-based approach can help these issues alongside cancer care.
CopenhagenAges 65 years+ - NCT05713903Recruiting
Compare keyhole versus open surgery for right colon cancer
This trial compares two surgical approaches—keyhole surgery versus open surgery—for right colon cancer. It aims to see which approach works better and is safer for patients needing planned (elective) tumor removal.
LarissaAges 18–90 - NCT05714111Recruiting
Registry for pancreatic cancer patients and people being evaluated
This is a research registry that collects information from adults with suspected or diagnosed pancreatic cancer. It may help doctors better understand the disease and improve care over time.
MilanAges 18 years+ - NCT05713994Recruiting
Liver cancer treatments together for unresectable liver tumors
This trial tests a combined treatment plan—chemo delivered to the liver, targeted therapy, anti-VEGF therapy, and immunotherapy—to control unresectable hepatocellular carcinoma (HCC). It may help shrink tumors or slow progression when surgery isn’t possible.
Quanzhou, FujianAges 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.