Clinical trials
Gastrointestinal Health clinical trials
Below are recruiting gastrointestinal health clinical trials, each written for real people, not researchers. We’re tracking 43 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06720558Recruiting
Placebo probiotic effects on gut health in mild GI symptoms
This study tests whether a placebo probiotic can improve gut health and overall well-being in people with mild digestive issues like gas, bloating, or irregularity. If you have mild symptoms that don't stop your daily activities, this trial may help understand if believing you're taking a probiotic can make you feel better.
MilanAges 20–65 - NCT07437911Recruiting
Can a Supplement Help with Nutrient Gaps for GLP-1 Users?
This study tests whether a daily supplement can help fill nutrient gaps and improve gut health for people who are already taking GLP-1 weight-loss medications (like Ozempic or Wegovy). Participants must be on a stable dose for at least 8 weeks and be generally healthy without other chronic conditions.
Santa Monica, CaliforniaAges 18–59 - NCT03740503Recruiting
Study genes in people who respond unusually to treatment
This study looks at stored tumor samples to understand why some people respond much better or much worse than expected. The goal is to learn what the tumor’s genes might be telling doctors about response to treatment.
Toronto, OntarioAges 18 years+ - NCT07639853Enrolling by invitation
Doctor feedback survey on Concerto Versa coils
This study gathers feedback from doctors who use Concerto Versa detachable coils (small metal devices that help treat brain aneurysms). The survey helps improve how these coils work and are used.
El Paso, TexasAges 22 years+ - NCT04674267Recruiting
REACH study for older adults with GI cancer and support needs
This study looks at how to improve health and care support for people age 70 and older with gastrointestinal (GI) cancer. It may help by offering a structured way to address practical and emotional challenges that can affect aging and cancer care.
Boston, MassachusettsAges 70 years+ - NCT05846802Recruiting
Gastroparesis and stomach symptoms registry for adults
This registry is for adults with long-lasting stomach emptying problems or related symptoms, helping researchers better understand patterns of nausea, pain, and fullness. You may be able to join if you meet specific symptom and test results, and can complete a stomach-emptying scan.
Scottsdale, ArizonaAges 18–85 - NCT02906943Recruiting
Testing cancer tissue to guide targeted treatment choices
This trial studies advanced solid tumors by using stored tumor samples to look for molecular clues. The goal is to help doctors better choose cancer treatments that may work for your specific tumor.
Hamilton, OntarioAges 18 years+ - NCT07524114Recruiting
Tracking cancer recurrence risk after treatment
This study uses advanced blood tests to detect tiny amounts of cancer DNA after you've completed cancer treatment. The goal is to catch any signs of cancer coming back as early as possible, which may help doctors intervene sooner.
Toronto, OntarioAges 18 years+ - NCT05989763Recruiting
Constipation study for people with systemic sclerosis
This study looks at why people with systemic sclerosis (a disease that can affect connective tissues) develop constipation. It will use special tests to measure how well the colon moves waste, and it may help doctors find better treatments.
Houston, TexasAges 18 years+ - NCT06810232Enrolling by invitation
Health factors and longer hospital stay after endoscopy
This study looks at how general health factors (like age and other medical conditions) might affect how long you need to stay in the hospital after a routine stomach or bowel exam called an endoscopy. The goal is to understand which patients may need extra care so hospitals can plan better.
IstanbulAges 18 years+ - NCT07591584Recruiting
Digestive Enzyme Blend for Bloating and Gas Relief
This study tests whether a daily digestive enzyme supplement designed to break down certain hard-to-digest foods can reduce bloating and belly pain. You'll use a smartphone app to track your symptoms over several weeks to see if the enzyme helps.
Los Angeles, CaliforniaAges 18 years+ - NCT05443321Enrolling by invitation
Health information sharing during hospital transfers
This trial studies whether sharing patients’ health information between hospitals during transfers can improve outcomes. You may be included if you are moved from a specific partner hospital to Brigham and Women’s Hospital and admitted to certain hospital units.
Boston, MassachusettsAges 18 years+ - NCT03298334RecruitingPhase 1/Phase 2
Testing vaginal bacteria transfer to newborns after C-section
This study looks at whether they can safely place “healthy vaginal bacteria” from the mother into the newborn after a scheduled C-section, and whether it improves the baby’s health. It only enrolls certain mothers and babies based on infection testing and other health factors.
Falls Church, VirginiaAges birth–50 years - NCT06731998Recruiting
Improving pain control after cancer surgery
This study compares different methods of managing pain after minimally invasive surgery for abdominal cancers. It aims to find which approach works best to reduce pain and improve recovery.
Pittsburgh, PennsylvaniaAges 18–89 - NCT05804331Recruiting
Endoscopy treatment study for large upper stomach/throat lesions
This trial studies a specialized endoscopy procedure to remove larger abnormal growths in the upper digestive tract. It may help people whose lesion size and depth make certain removal techniques a better fit.
Sydney, New South WalesAges 18 years+ - NCT06200259Recruiting
Reducing Bowel Side Effects in Prostate Cancer Proton Therapy
This study tests a way to reduce stomach and bowel side effects of proton therapy for prostate cancer. It uses special software to place the proton beam more carefully, which may protect nearby organs.
Knoxville, TennesseeAges 18 years+ - NCT07344506RecruitingPhase 4
Cure H. pylori: New combination therapy for stomach infection
This trial tests a new combination of medications to treat H. pylori, a common stomach infection that can cause ulcers. It aims to find a more effective treatment with fewer side effects.
KarachiAges 18 years+ - NCT07001592RecruitingPhase 1
Injection of a modified virus for advanced GI and peritoneal cancers
This trial tests a modified virus injected directly into tumors to treat metastatic gastrointestinal and peritoneal cancers. It aims to see if this approach can shrink tumors or slow their growth.
Pittsburgh, PennsylvaniaAges 18–69 - NCT01793168Recruiting
Rare disease registry and history study
This study keeps a registry (a structured list) of people with rare diseases and may also track how the condition changes over time. It can help researchers better understand rare illnesses and find gaps in care, which may improve future treatments.
Sioux Falls, South DakotaAges Any age
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Common questions
- Are there clinical trials for gastrointestinal health?
- Yes. Clin2 currently lists 43 recruiting gastrointestinal health studies from the U.S. registry, each rewritten for real people, not researchers, so you can see what it’s testing and who it’s for.
- How do I know if I qualify for a gastrointestinal health trial?
- Each study lists its eligibility criteria — rules about age, diagnosis, and prior treatments. On every Clin2 trial page we explain these in words written for real people and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Does it cost anything to join a gastrointestinal health trial?
- Using Clin2 is always free. Many trials cover the cost of the study treatment and related visits; some reimburse travel. The study team explains exactly what’s covered before you decide.
Related conditions
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. Talk with your doctor about whether a specific trial is right for you.