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
- NCT05579353Recruiting
Study stool and blood markers in colorectal cancer treatment planning
This study looks at special tiny cell-signal particles (called exosomes) and related pathways to understand colorectal cancer. Your results from samples may help researchers learn how these signals relate to the disease after surgery.
Jinan, LixiaAges 18–80 - NCT04637438Recruiting
Fecal transplant for Crohn’s around the small and large bowel
This trial studies fecal microbiota transplantation (a transplant of beneficial gut bacteria from a donor) to help people with Crohn’s disease that is causing narrowing (strictures) and/or abnormal tunnels (fistulas) and who need bowel surgery. You may qualify if you’re an adult, planning ileal/ileocecal surgery, and can complete the colonoscopy while not on certain gut-altering medicines.
TampereAges 18–120 - NCT05451901Recruiting
Direct surgery versus step-by-step drainage for walled pancreatic infection
This study compares two ways to treat a pancreatic infection pocket (walled-off necrosis): removing dead/infected tissue right away versus starting with drainage and escalating if needed. It may help find the safest, most effective approach for getting the infection under control.
Bunkyō-Ku, TokyoAges 18 years+ - NCT05495776Recruiting
Study checks how often Lynch syndrome happens in colon cancer
This registry study looks at how many people with colon cancer also have Lynch syndrome, an inherited condition that can affect cancer risk. If you enroll, your care team collects basic information from your diagnosis to better estimate how common it is.
MoscowAges 18 years+ - NCT02299466Recruiting
Registry for adults on home IV nutrition
This is a registry (a record-keeping study) for adults who receive total parenteral nutrition through an IV at home long term. It may help doctors better understand your care and improve future support for people using home IV nutrition.
Calgary, AlbertaAges 18 years+ - NCT05608213RecruitingPhase 3
Lenvatinib plus radiation seeds vs lenvatinib alone for liver cancer
This Phase 3 trial compares lenvatinib plus implanted radiation seeds versus lenvatinib alone in people with liver cancer that no longer responds to TACE. It aims to improve how long patients can control the cancer inside the liver.
Guangzhou, GuangdongAges 18–75 - NCT04761523Recruiting
Diet fat changes to help prevent pancreatitis coming back
This study looks at whether changing how much dietary fat you eat can lower the chance that pancreatitis returns. It focuses on people who have had pancreatitis more than once and are not already receiving specific meal guidance for a medical reason.
BudapestAges 14 years+ - NCT04871399Recruiting
Right colon cancer surgery with more thorough tissue removal
This trial compares a more complete surgery (removing the right colon and surrounding tissue more thoroughly) versus the usual right-colon surgery. It aims to see if the more thorough approach improves outcomes for people with non-metastatic right colon cancer.
Grosseto, ArezzoAges 18–85 - NCT04688801Recruiting
Chemo plus immunotherapy after surgery for esophageal cancer
This study looks at adding immunotherapy to standard chemotherapy after surgery for certain esophageal or EG-junction cancers. It may help lower the chance the cancer comes back, for people whose cancer can be fully removed.
Jinan, ShandongAges 25–80 - NCT05618821RecruitingPhase 2
Indocyanine green dye during stomach surgery for leftover cancer
This Phase 2 study tests whether using a special light-activated dye (indocyanine green) during laparoscopic stomach surgery can improve surgical outcomes for people with remnant (leftover) stomach cancer that has not spread to distant organs. It may help surgeons better find lymph nodes while operating.
Fuzhou, FujianAges 18–75 - NCT03587480Recruiting
Surgery methods after chemo-radiation for stage 3 rectal cancer
This trial compares two different surgery approaches after chemo-radiation for stage 3 rectal cancer. It aims to see which operation helps control the cancer more effectively while keeping surgery as safe as possible.
Guangzhou, GuangdongAges 18–75 - NCT05331911RecruitingPhase 4
Propofol anesthesia vs sevoflurane for liver tumor surgery
This study compares two types of general anesthesia—propofol-based total intravenous anesthesia versus sevoflurane inhaled anesthesia—during planned surgery to remove liver tumors. The goal is to see whether the anesthesia choice affects long-term outcomes after partial liver removal for hepatocellular carcinoma.
Kaohsiung CityAges 20–80 - NCT05628701Recruiting
Testing two UC surgery reconstructions after colectomy
This trial compares two ways of reconnecting the bowel after subtotal colectomy and ileostomy in people with ulcerative colitis (UC). It may help determine which surgical option works best when the rectum is calm enough to manage with topical mesalazine alone.
GothenburgAges 18–60 - NCT05625750Recruiting
Study of people diagnosed with fatty liver from not-too-much alcohol
This is an observational study for people diagnosed with nonalcoholic fatty liver disease (fatty buildup in the liver not mainly caused by heavy drinking). It may help researchers better understand this condition, especially how it shows up on tests and how people report relevant health information.
Changsha, HunanAges 18–75 - NCT05356039Recruiting
Study of surgery options and quality of life in pancreatic cancer
This study looks at people with borderline-resectable or locally advanced pancreatic cancer to see how treatment choices affect survival, quality of life, and whether tumors can be removed by surgery. It may help doctors better predict who can benefit from surgical approaches and what outcomes matter most to patients.
UmeåAges 18 years+ - NCT05476432RecruitingPhase 3
One-day versus two-day chemotherapy for unresectable liver cancer
This study compares two schedules of chemotherapy to treat liver cancer that cannot be removed with surgery. It aims to see whether the shorter schedule works about as well, with similar safety.
Foshan, GuangdongAges 18–75 - NCT05642338Recruiting
Testing two sampling methods to monitor Barrett’s esophagus
This study compares two ways of taking tissue samples during endoscopy to check how Barrett’s esophagus is changing. The goal is to improve surveillance, especially for finding early precancer or early cancer changes.
Amsterdam, North HollandAges 18 years+ - NCT05252078RecruitingPhase 2
Anlotinib plus an injection after esophageal cancer surgery
This Phase 2 study tests whether anlotinib tablets combined with an injection (TQB2450) can lower the risk of esophageal squamous cell cancer coming back after surgery. It may help by targeting cancer growth signals and blood-vessel formation to reduce recurrence.
Nanchang, JiangxiAges 18 years+ - NCT05651672RecruitingPhase 2
Pemigatinib for advanced gut cancers with FGFR gene changes
This Phase 2 trial tests pemigatinib, a targeted medicine, for advanced or metastatic gastrointestinal (GI) cancers that have specific FGFR1–3 gene changes. It’s for people whose cancer has grown despite prior standard treatment, and who may benefit if their tumor has the right genetic change.
Tianjin, Tianjin MunicipalityAges 18 years+ - NCT05652621Recruiting
Probiotics for people with ulcerative colitis symptoms
This study looks at whether probiotic pellets help people with inflammatory bowel disease, specifically ulcerative colitis. It may help improve gut symptoms, but the trial will test how well probiotics work for participants like you.
Xinxiang, HenanAges 18–80 - NCT05658081Recruiting
Two surgical stitch methods for Crohn’s bowel surgery
This trial compares two surgical ways of connecting the bowel in people with Crohn’s disease who need bowel resection (removal of a diseased bowel segment) and then reconnect it. If you qualify, the study may help show which method is safer or leads to better recovery.
Nanjing, JiangsuAges 16–60 - NCT05661786Recruiting
Study outcomes for hepatitis B with “indeterminate” disease phase
This trial studies what happens to people with hepatitis B who have hepatitis B surface antigen for more than 6 months, are “HBeAg-negative,” and have certain blood and liver-scarring levels despite normal or near-normal liver inflammation. It may help doctors understand the best care for this specific group before clear treatment phases.
Changzhou, JiangsuAges 18 years+ - NCT04949282Recruiting
Lutetium-177 treatment for advanced somatostatin-positive tumors
This study looks at outcomes for adults with tumors that are advanced (can’t be fully removed or has spread) and are getting worse, where tests show somatostatin receptors. It aims to understand how treatment with lutetium-177 helps people in this situation.
Santiago de Compostela, A CoruñaAges 18–100 - NCT05236972RecruitingPhase 3
PD-1 antibody after colon cancer surgery for dMMR stage III
This phase 3 trial studies a PD-1 antibody medicine given after surgery to help prevent stage III colon cancer from coming back. It is specifically for people whose tumor is mismatch repair–defective (dMMR) or MSI-H, which may make the cancer more responsive to immune-based treatment.
GuangzhouAges 18–75
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.