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
- NCT06515821Recruiting
Improving colorectal cancer screening and diagnosis
This study collects data to improve how colorectal cancer is found and diagnosed. It compares new testing methods (like breath and stool tests) with standard colonoscopy in people with and without cancer or risk factors.
SofiaAges 18 years+ - NCT06515964Recruiting
Long-term study of early esophageal cancer after endoscopic surgery
This study follows people who had early-stage esophageal cancer removed with a minimally invasive procedure (ESD) to see how they do over time. It aims to understand how often the cancer comes back or spreads, and what factors might affect that.
Shanghai, Shanghai MunicipalityAges 15–85 - NCT06516237Recruiting
New imaging for fibrosis in ulcerative colitis
This study looks at new ways to detect scarring (fibrosis) in the bowel using advanced imaging and tests. It may help doctors better understand and monitor ulcerative colitis. If you are already having a colonoscopy, you may be able to join.
Milan, LombardyAges 18 years+ - NCT06516341Recruiting
Predicting bowel recurrence after surgery for chronic inflammation
This study follows patients with Crohn's disease or ulcerative colitis to see how their intestine heals after surgery. It looks for signs that can predict whether inflammation will return or complications will happen.
Milan, ItalyAges 18–69 - NCT06516445RecruitingPhase 2
Short radiation plus targeted drugs before surgery for rectal cancer
This trial tests a new combination of treatments before surgery for locally advanced rectal cancer. You would receive short-course radiation, then an immunotherapy drug (camrelizumab) plus a PARP inhibitor (fluzoparib) and chemotherapy, to shrink the tumor and make surgery more successful.
Wuhan, HubeiAges 18–75 - NCT06518434RecruitingPhase 2
Cannabis oil for advanced liver cancer study
This study tests if cannabis oil can help people with advanced liver cancer that cannot be treated with standard therapies. It is a small pilot study to see if the oil is safe and may improve symptoms or quality of life.
GroningenAges 18 years+ - NCT06519006Recruiting
Pelvic floor exercises after rectal surgery
This trial tests whether doing pelvic floor exercises after a type of rectal surgery called 'low anterior resection' can help prevent bowel problems known as Low Anterior Resection Syndrome (LARS). It may help you maintain better bowel control after surgery.
Banská BystricaAges 19 years+ - NCT06519162Recruiting
Liver-gut link study for liver disease patients and their families
This study looks at how gut bacteria differ in people with specific liver diseases and their household contacts. It may help researchers understand the connection between the liver and gut.
Daejeon, Jung-guAges 19 years+ - NCT06519578Recruiting
Liver Cancer Study: Comparing Two Chemotherapy Drugs via Artery Infusion
This study compares two chemotherapy drugs (raltitrexed and 5-fluorouracil) given directly into the liver's main artery to treat liver cancer. It aims to see which drug works better and is safer for people with hepatocellular carcinoma.
ShanghaiAges 18–75 - NCT06520397RecruitingPhase 4
Combination therapy vs. higher dose ustekinumab for Crohn's
This trial tests whether a combination of two drugs (upadacitinib and ustekinumab) works better than a higher dose of ustekinumab alone for people with active Crohn's disease that hasn't responded well to previous treatments.
Guangzhou, GuangdongAges 18–70 - NCT06520579Recruiting
Behavioral help before and after neck surgery
This trial tests if a simple behavioral program can help adults prepare for and recover from anterior neck surgery (ACDF). It includes extra support and nutrition tips to improve healing.
New York, New YorkAges 21–99 - NCT06520683RecruitingPhase 3
Immunotherapy after surgery for high-risk stage II colorectal cancer
This trial tests whether a drug called an immune checkpoint inhibitor (PD-1 blocker) can help lower the risk of cancer returning after surgery. It is for people with a specific type of colorectal cancer (dMMR or MSI-H) that had certain high-risk features.
Guangzhou, GuangdongAges 18–80 - NCT06521541Recruiting
Prehabilitation program for stomach cancer surgery patients
This study tests a program of nutrition, exercise, and emotional support before and during chemotherapy and stomach cancer surgery. It aims to help patients recover faster and have fewer complications.
Qingdao, ShandongAges 18 years+ - NCT06522256Recruiting
HPV and anal cancer risk 10 years later
This study looks at HPV (the virus that can cause anal cancer) and checks if certain types of high-risk HPV are linked to abnormal cells or cancer in the anus, 10 years after joining the IPERGAY trial. It helps researchers understand long-term risks.
LyonAges 18 years+ - NCT06522919RecruitingPhase 2
Immunotherapy and chemotherapy for advanced colorectal cancer
This trial tests a sequence of treatments for people with a specific type of advanced colorectal cancer (called pMMR or MSS) that has not responded to earlier therapies. Patients first receive an immunotherapy combination (pembrolizumab plus a personalized dendritic cell vaccine) followed by a chemotherapy pill (trifluridine/tipiracil) plus bevacizumab. The goal is to see if this sequence can help control the cancer.
Meldola, Forlì CesenaAges 18 years+ - NCT06523374Recruiting
Studying quality of life and cancer risk in Barrett's esophagus
This study looks at how Barrett's esophagus affects your quality of life and fear of cancer. It uses new tests to better predict who might develop esophageal cancer, so you can get the right care sooner.
Edegem, AntwerpenAges 18 years+ - NCT06523608Recruiting
Predicting liver problems in advanced chronic liver disease
This study looks at people with advanced chronic liver disease to find ways to predict when they might get worse or develop liver cancer. Researchers hope to use this information to prevent complications and improve care.
Münster, North Rhine-WestphaliaAges 18 years+ - NCT06523582Recruiting
Genetic study of neuroendocrine tumors in Mexican patients
This study aims to find genetic causes of neuroendocrine tumors in Mexican patients. By understanding your DNA, researchers hope to improve diagnosis and treatment for people with these rare conditions.
Mexico City, Mexico CityAges 18 years+ - NCT06523647Recruiting
Effectiveness of Ustekinumab for Crohn's Disease
This study looks at how well Ustekinumab (Stelara) works for Crohn's disease in people who started the medication in 2024. Researchers want to understand its real-world benefits and safety.
AktobeAges 18 years+ - NCT06524245Recruiting
Predicting Colorectal Cancer Recurrence with Portal Vein Blood
This study looks at blood from a special vein near your liver (portal vein) to find markers that might predict if colorectal cancer will come back. The goal is to create a better way to identify patients who may need closer monitoring after surgery.
Beijing, Beijing MunicipalityAges 18 years+ - NCT06524401Recruiting
New device to prevent skin problems after ostomy surgery
This study tests a new device called the Limpet that is placed over a stoma (an opening in your belly after colon surgery) to help prevent skin problems. It might help people with a new ileostomy or a high-output fistula.
Saint Paul, MinnesotaAges 18 years+ - NCT06524557Recruiting
Ultrasound-based test to tell benign from malignant liver tumors
This study uses ultrasound images to help tell the difference between benign (non-cancerous) and malignant (cancerous) liver tumors without needing a needle biopsy. If you are 18–70, have a liver tumor visible on ultrasound, and are planning a biopsy or surgery to confirm the diagnosis, you may be able to join.
Xi'an, Xi'anAges 18–70 - NCT06525623Recruiting
Early albumin for kidney injury in cirrhosis
This study tests whether giving a common fluid (albumin) early can help protect the kidneys in people with advanced liver disease who have a sudden kidney injury. It aims to see if this simple treatment can improve recovery and prevent the need for dialysis.
Boston, MassachusettsAges 18 years+ - NCT06525753Recruiting
Weaning from IV nutrition in children with intestinal failure
This study looks at children who have stopped needing IV nutrition (parenteral nutrition) for at least a year after having intestinal failure. It aims to understand their long-term health and growth.
Toronto, OntarioAges birth–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.