Gastroenterology
Digestive system clinical trials
Conditions of the stomach, intestines, liver, and the rest of the digestive tract. We’re tracking 7,879 recruiting studies in this area right now.
By phase
- Not applicable4,911
- Phase 21,185
- Phase 1581
- Phase 3465
- Phase 1/Phase 2391
- Phase 4235
- Phase 2/Phase 3111
Top conditions
- Colorectal Cancer491
- Gastric Cancer296
- Pancreatic Cancer289
- 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
- Florida134
- Massachusetts128
- New York123
- Alabama122
- Maryland85
- Ohio79
- Pennsylvania72
Recruiting studies7,879 total
- NCT04088370Recruiting
Testing blood immune cell response in alcohol-related liver disease
This study looks at how immune cells in the blood respond in people with alcoholic hepatitis and in people who drink heavily (with no known liver disease). It may help researchers understand why liver inflammation happens after heavy alcohol use.
Cleveland, OhioAges 21–65 - NCT04089631RecruitingPhase 3
Blood test guides extra treatment after stage II colon cancer surgery
This study uses a blood test called ctDNA to decide whether you need extra (adjuvant) chemotherapy after stage II colon or certain stage II rectal cancer surgery. It may help avoid unnecessary treatment or better target people who still have signs of cancer after surgery.
Dresden, SaxonyAges 18 years+ - NCT04094454Recruiting
Vaginal dilation during pelvic radiation for anal cancer
This trial studies a method to make vaginal dilation easier during pelvic radiotherapy in women with anal cancer. It may help reduce or prevent treatment-related vaginal narrowing and improve comfort and function.
HeidelbergAges 18 years+ - NCT04095299RecruitingPhase 3
Standard vs high-dose radiotherapy for rectal cancer
This Phase 3 trial compares standard-dose and higher-dose radiotherapy given along with chemotherapy in people with rectal cancer. The goal is to see whether a higher dose can improve rectal cancer outcomes while keeping the rectum functioning and avoiding too much harm.
AalborgAges 18 years+ - NCT04095195Recruiting
Pancreatic cancer risk registry for high-risk families
This study builds a registry of people with a higher-than-average risk of pancreatic cancer, based on family history or inherited gene conditions. If you join the extra imaging follow-up, it helps your care team monitor risk earlier.
Rozzano, MilanAges 18–80 - NCT04096014Recruiting
Protein supplement at night to prevent repeat brain episodes
This study tests whether taking extra protein in the late evening or early morning can lower the chance of being readmitted for hepatic encephalopathy, a brain problem that can happen with liver disease. It may help by supporting safer nutrition and reducing the risk of another hospitalization.
Cleveland, OhioAges 18–75 - 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+ - NCT04103567Recruiting
Testing stool and bacteria clues for poor rectal cancer response
This study looks at stool samples to see whether gut bacteria or other microbes help explain why some rectal cancers respond less well to treatment given before surgery. If you have mid or lower rectal cancer and are planning pre-surgery treatment, your information and stool sample may help researchers improve how treatment is chosen.
Montpellier, HéraultAges 18 years+ - NCT04103372Recruiting
MRI check for early rectal cancer or large polyps
This trial uses a special MRI before treatment to better understand early rectal cancer or suspicious large polyps. It may help doctors choose care that avoids bigger surgery when possible.
Reading, BerkshireAges 16–100 - NCT04106518Recruiting
Genetics study of alcohol-related liver disease and cirrhosis
This study looks at genetic differences in people with alcohol-related liver illness, including a recent jaundice episode (alcoholic hepatitis). By following people over time, it may help doctors better predict illness and understand why some people develop worse liver problems.
AngersAges 18 years+ - NCT04107077RecruitingPhase 2
HIPEC surgery plus chemotherapy for advanced stomach cancer
This study tests whether a specialized surgery called HIPEC (heat-treated chemotherapy placed in the belly) can improve outcomes for people with advanced stomach cancer that has reached the lining of the abdomen. It’s given after you’ve already had standard chemotherapy, aiming to better control disease in the belly.
Chicago, IllinoisAges 18 years+ - NCT04108936Recruiting
Long-term study of CRS/HIPEC for cancer spread in the abdomen
This study follows people who have cancer that looks like it has spread along the lining of the abdomen. It looks at outcomes over time for a treatment called CRS/HIPEC, which is designed to remove tumor from the abdomen and bathe it with heated medicine.
Regensburg, BavariaAges 18–80 - NCT04109755RecruitingPhase 2
Pembrolizumab plus radiation before surgery for rectal cancer
This trial tests whether giving pembrolizumab (an immunotherapy medicine) together with short-course radiation before surgery helps people with localized rectal cancer. It is mainly for tumors that are microsatellite stable (MSS).
GenevaAges 18 years+ - NCT04111978RecruitingPhase 3
Maintenance hormone therapy after ovarian cancer responds
This Phase 3 trial tests whether ongoing treatment with an aromatase inhibitor (a hormone-blocking medicine) after initial chemotherapy can help keep epithelial ovarian/fallopian tube/peritoneal cancer from coming back. It is only for certain tumor types that are hormone-receptor positive (ER+).
GrazAges 18 years+ - NCT04114136RecruitingPhase 2
Study tests pembrolizumab or nivolumab plus a diabetes-like drug
This Phase 2 study tests whether adding a metabolic (diabetes-related) medicine to an immune therapy (pembrolizumab or nivolumab) can better control certain solid tumors. It may help people whose standard treatment would usually be pembrolizumab or nivolumab alone.
Pittsburgh, PennsylvaniaAges 18 years+ - NCT04115254Recruiting
MRI-guided focused radiation for certain tumors
This study tests a type of high-precision radiation guided by MRI pictures to treat certain cancers. It may help doctors deliver radiation more accurately while avoiding nearby healthy tissue, but you must be able to safely complete an MRI scan and meet tumor-size and health requirements.
Boston, MassachusettsAges 18 years+ - NCT04119024RecruitingPhase 1
Gene-edited immune cells for advanced melanoma or solid tumors
This Phase 1 study tests a gene-modified immune cell treatment for advanced cancers that don’t have standard curative options. It may help by attacking cancer cells that show a specific marker called IL13Rα2 after patients receive “conditioning” chemotherapy to prepare the immune system.
Duarte, CaliforniaAges 18–75 - NCT04120935Recruiting
Observational study for adults with possible or confirmed bowel cancer
This study mainly watches and records health information from adults with colorectal cancer (or a strong suspicion of it). It collects past tumor tissue and other clinical details to better understand the disease and care.
Biella, BiellaAges 18 years+ - NCT04121806Recruiting
Diet plan for active ulcerative colitis flare-ups
This trial studies whether a specific diet can improve symptoms and reduce inflammation during an active flare of ulcerative colitis. You may be eligible if you have documented active disease and can follow the study diet and medication rules.
Toronto, OntarioAges 18–75 - NCT04130971Recruiting
Testing tumor tissue to understand and predict colorectal cancer response
This study looks at tissue samples from people with colorectal cancer to better understand tumor features and how they may respond to treatment. If you have colorectal cancer, the trial may help researchers match future treatments more effectively.
GothenburgAges 18 years+ - NCT04136132Recruiting
Pancreatic cancer patient database for research
This study collects medical and lab information from adults with pancreatic cancer to help researchers understand care and outcomes. You may be asked for follow-up visits and basic data, and it may be used to improve future treatments.
Montpellier, OccAges 18 years+ - NCT04134559RecruitingPhase 2
Pembrolizumab for kids with liver cancer that came back
This trial studies pembrolizumab (an immune therapy) in children and young people with hepatocellular carcinoma (HCC) that has returned or did not respond to earlier treatment. The goal is to see whether it can shrink tumors and help control the cancer.
San Francisco, CaliforniaAges birth–30 years - 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 - NCT04137133Recruiting
Precision medicine study for young children with cystic fibrosis
This study enrolls newly diagnosed infants with cystic fibrosis to follow them during “precision medicine” care. It may help doctors better understand which treatments and monitoring work best, especially before certain infections develop.
RoscoffAges Up to 18 years
Common questions
- How many digestive system clinical trials are recruiting?
- Clin2 is tracking 7,879 recruiting gastroenterology studies from the U.S. registry right now, out of 12,372 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.