Clinical trials
Gastrointestinal Function clinical trials
Below are recruiting gastrointestinal function clinical trials, each written for real people, not researchers. We’re tracking 41 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06639126Enrolling by invitation
Thyme extract for functional gut issues
This trial tests whether a wild thyme extract can help with functional gastrointestinal disorders (common digestive problems without a clear cause). It focuses on the extract's anti-inflammatory and metabolism-related effects.
Granada, GranadaAges 18–75 - NCT06687057Recruiting
Heart rate training for anxiety and stomach issues
This study tests whether a special breathing and heart-rate training program (called HRV biofeedback) can help people who have both anxiety and a sensitive stomach or bowel (functional gastrointestinal disorder). If you often feel anxious and have belly discomfort without a clear medical cause, this training might improve both your digestion and your mood.
MilanAges 18 years+ - NCT06031025Recruiting
Study of tummy problems in at-risk infants
This study looks at how common stomach and gut issues are in babies who were born early or had problems at birth, and how these issues change over time.
RomaAges 3 months–2 years - NCT06215222Recruiting
Studying gut bacteria in IBS and digestive issues
This study uses a tiny capsule to collect samples from your small intestine to learn about gut bacteria in people with IBS or other functional gut disorders. It could help researchers understand what causes digestive symptoms.
Redwood City, CaliforniaAges 18–70 - NCT07222943Recruiting
Guided Imagery App for Kids with Stomach Pain
This study tests a mobile app that uses guided imagery (a relaxation technique using your imagination) to help children ages 7–12 with stomach pain disorders. The goal is to see if the app is easy to use and helpful for managing pain.
Austin, TexasAges 7–12 - NCT06488274Recruiting
Study of a new infant formula for digestive issues in babies
This trial is testing a new infant formula to see if it helps with common digestive problems like spitting up, colic, or constipation in babies up to 4 months old. It aims to improve symptoms and comfort for infants who are formula-fed.
NiceAges Up to 4 months - NCT07081100Recruiting
Probiotics for stomach and bowel health improvement
This trial tests whether a probiotic supplement can help people with common stomach or bowel issues like indigestion or constipation that are not caused by another disease. You take the probiotic daily to see if it improves your symptoms.
Suzhou, JiangsuAges 18–65 - NCT05880199Recruiting
Test Meal and Monitoring in Teens With GI Symptoms
This study studies how a standardized meal affects digestion using special monitoring in children and young adults with stomach or gut symptom problems (and compares them to healthy controls). It may help doctors understand what causes gut symptoms and guide better treatments.
San Diego, CaliforniaAges 8–25 - NCT05295446Enrolling by invitation
GI symptom registry for adults with functional bowel issues
This study is a registry (a way to collect health information) for adults with certain long-term “functional” gastrointestinal (GI) problems. It may help doctors better understand these conditions and improve future treatments.
Boston, MassachusettsAges 18 years+ - NCT07388264Recruiting
Probiotic for bloating and gut health
This study tests a probiotic (a good bacteria) called Weizmannia coagulans to see if it helps reduce bloating and improves gut health. Researchers will check how your digestion changes by looking at your stool and gut bacteria.
Saint Charles, MissouriAges 18–50 - NCT06863207Recruiting
Testing a new treatment for teens with stomach and nerve problems
This study tests whether a personalized nerve stimulation treatment can help teens with cyclic vomiting syndrome or functional dyspepsia who also have symptoms of autonomic dysfunction, like dizziness, fatigue, or heart palpitations when standing.
Milwaukee, WisconsinAges 11–18 - NCT07000227Recruiting
Low FODMAP diet study for IBS or functional dyspepsia
This study looks at how a low FODMAP diet affects people with irritable bowel syndrome (IBS) or functional dyspepsia (FD). It aims to understand why this diet helps some patients and may offer a way to manage your symptoms.
Kuala Lumpur, Kuala LumpurAges 18 years+ - NCT07589465Recruiting
Lactulose to Help Digestion Recover After Appendix Surgery
This study tests whether taking lactulose (a gentle laxative) after appendix removal helps your stomach and intestines work normally again. The trial compares lactulose to a placebo (inactive pill) to see which helps patients recover bowel function faster.
SichuanAges 18 years+ - NCT07320287Recruiting
Probiotics for babies born by C-section
This trial tests whether a multi-strain probiotic supplement can help with growth, digestion, and gut health in healthy full-term babies who were born by C-section.
HanoiAges birth–1 day - NCT06631001Recruiting
Abdominal massage for digestion in ICU patients on tube feeding
This study tests if gentle abdominal massage can improve digestion in intensive care patients who are on a breathing machine and receiving liquid food through a tube. It might help prevent gastrointestinal issues like bloating or slow digestion.
MersinAges 18 years+ - NCT07148583Recruiting
BioAmicus Complete for tummy troubles in babies
This study tests if a probiotic supplement called BioAmicus Complete can help babies with common digestive issues like colic, reflux, constipation, or loose stools. It might be a good option if your baby has these symptoms and you haven't used other probiotics or antibiotics recently.
Haiphong, Hai PhongAges birth–2 years - NCT07857941RecruitingPhase 2
New treatments for functional dyspepsia symptoms
This trial tests new ways to ease the stomach pain, bloating, or burning that comes with functional dyspepsia—a condition where your stomach feels upset but tests like an endoscopy look normal. The treatment aims to help your gut, liver, and brain work together better, which may reduce your symptoms.
Hualien CityAges 18–64 - NCT06057415Recruiting
Gut nerve stimulation study for high-risk newborns
This study tests whether stimulating the nerves in the gut can help improve digestion in high-risk newborns, specifically those born very early or with a diaphragmatic hernia. It takes place at Amalia Children's Hospital and aims to find a way to help these babies' intestines work better.
NijmegenAges Up to 2 days - NCT07714499Recruiting
Energy use in healthy people vs. those with intestinal failure
This study looks at how the body uses energy (calories) in people with intestinal failure compared to healthy controls. The results may help improve nutritional care.
LjubljanaAges 18–65 - NCT07307495Recruiting
Pain relief after back surgery and its effect on recovery
This study tests a new painkiller, oliceridine fumarate, given through a pump after lumbar spine surgery. The goal is to see if it helps the bowels and stomach recover faster compared to standard pain relief.
Xi'an, ShaanxiAges 18–75 - NCT06514573Recruiting
Butyrate supplement for children with autism and stomach issues
This study tests if a supplement called butyrate can help improve gut health in children aged 3-6 who have autism and ongoing stomach problems like constipation or bloating. It aims to see if this treatment eases their digestive symptoms.
NaplesAges 3–6 - NCT07105865Recruiting
Nickel and LTPs in stomach and bowel issues
This study looks at whether being sensitive to nickel or certain proteins called LTPs is linked to ongoing stomach and bowel problems. It aims to find better ways to diagnose and help people with functional dyspepsia or irritable bowel syndrome.
Naples, NaplesAges 4–65 - NCT07081802Recruiting
Acupuncture and herbs for bowel recovery after surgery
This study tests whether a special type of acupuncture (transcutaneous electrical acupoint stimulation) along with traditional Chinese medicine can help your bowels recover faster after abdominal surgery. It is for people having surgery on the liver, gallbladder, pancreas, stomach, or intestines.
Beijing, Beijing MunicipalityAges 18–80 - NCT06904872RecruitingPhase 2
Testing a diarrhea drug for short bowel syndrome without a colon
This trial tests if crofelemer can reduce diarrhea and fluid loss in people with short bowel syndrome who have a stoma (no colon connection) and need intravenous nutrition or fluids. The goal is to see if it improves gut function and quality of life.
AachenAges 18 years+
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Common questions
- Are there clinical trials for gastrointestinal function?
- Yes. Clin2 currently lists 41 recruiting gastrointestinal function 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 function 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 function 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.