Clinical trials
Gastrointestinal Symptoms clinical trials
Below are recruiting gastrointestinal symptoms clinical trials, each written for real people, not researchers. We’re tracking 32 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07551401Recruiting
Music, breathing, and virtual reality for cesarean recovery
This study tests whether music therapy, breathing exercises, and virtual reality can help women feel better and recover faster after a cesarean section. It may reduce pain and improve digestion after birth.
Konya, KonyaAges 18 years+ - NCT07858110Recruiting
Wheat flour milling and blood sugar response
This study tests whether bread made from wheat milled in different ways affects blood sugar levels and stomach comfort. If you join, you will eat study breads for 14 days and wear a glucose monitor to track your body's response.
Bergen, VestlandAges 20–40 - NCT07453823Recruiting
Synbiotic for gut health in overweight adults
This trial tests a combination supplement (a synbiotic) to see if it can improve gut function and gut bacteria in middle-aged and older adults who are overweight and have constipation. If eligible, you take the supplement daily and report how your digestion feels.
Cork, BlackpoolAges 50–70 - 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 - NCT06190730Recruiting
Remote symptom collection for better recovery after surgery
This trial uses a phone or computer app to track your symptoms after gastrointestinal tumor surgery. It aims to improve your recovery by keeping your care team informed remotely.
Baltimore, MarylandAges 18 years+ - NCT06846359Recruiting
Hypnotherapy for Upper Gut Symptoms
This study tests whether hypnotherapy sessions, delivered through a smartphone app, can help relieve upper digestive symptoms like nausea, bloating, and indigestion. It's for people whose symptoms are not caused by a known disease and who have already had normal stomach-emptying tests.
Rochester, MinnesotaAges 18 years+ - 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 - NCT07865052Recruiting
Psychological support before complex stomach or intestinal surgery
This study tests whether a psychological program before major abdominal surgery can help reduce distress and improve recovery. Participants will receive extra mental health support to prepare for their operation.
Chicago, IllinoisAges 18 years+ - NCT06952920RecruitingPhase 3
Acupuncture for nausea from chemo in breast cancer
This trial tests whether adding acupuncture to standard care can help manage nausea, vomiting, and other stomach symptoms caused by chemotherapy in people with early-stage breast cancer. It is for those about to start their first round of strong chemo.
Xining, QinghaiAges 18–75 - NCT07816809Recruiting
Phage therapy for gut discomfort
This trial tests whether taking special capsules with friendly viruses (phages) can help reduce stomach pain, bloating, constipation, or diarrhea by balancing the bacteria in your gut.
Fort Collins, ColoradoAges 18–75 - 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+ - NCT07590895Recruiting
Low-FODMAP Diet for Endometriosis Pain and Bowel Symptoms
This study tests whether a low-FODMAP diet (a way of eating that limits certain hard-to-digest foods) can reduce pelvic pain, improve quality of life, and help bowel symptoms in women with endometriosis. Endometriosis is a condition where tissue similar to the uterine lining grows outside the uterus, often causing pain and digestive problems.
MilanAges 18–45 - 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 - NCT04919265Recruiting
Mother and baby health study from early pregnancy
This study follows pregnant people and their babies from the first few months of pregnancy through at least one year after birth. It aims to learn how health and development turn out, especially for mothers who can keep coming to the same clinic for follow-up.
Kajang, SelangorAges 18–45 - NCT07471490Enrolling by invitation
Stool test study for inflammatory bowel disease vs. irritable bowel syndrome
This study collects stool samples and health information to help develop a new test that may tell the difference between inflammatory bowel disease (IBD) and irritable bowel syndrome (IBS). If you have not been diagnosed with a chronic gut disorder, you may be able to join.
Minneapolis, MinnesotaAges 2 years+ - NCT07421596Recruiting
Dietary supplement study for gut and digestive health
This trial tests whether a dietary supplement system can improve gut and digestive health over 8 weeks. You may be eligible if you have digestive symptoms like bloating, stomach pain, or diarrhea.
San Francisco, CaliforniaAges 18–80 - NCT07402226Recruiting
Diet study for bloating with scleroderma
This study tests whether a special diet can help reduce bloating and stomach discomfort in people with scleroderma (systemic sclerosis). You'll follow a specific meal plan to see if it improves your digestive symptoms.
Ann Arbor, MichiganAges 18 years+ - NCT07370740Recruiting
Bloat relief study for healthy women with frequent bloating
This trial tests a supplement called 'Bloat' to see if it reduces post-meal bloating in healthy women who often feel bloated. If you're a woman aged 18–65 with regular bloating, this study might help find a gentle solution.
London, OntarioAges 18–65 - NCT07293624Enrolling by invitation
Diet and inflammation after weight-loss surgery
This study looks at how your diet affects inflammation and stomach symptoms after weight-loss surgery. You'll fill out food records and have blood tests to see how your eating habits relate to your health.
Istanbul, UskudarAges 18–65 - NCT07253155Enrolling by invitation
Probiotics for preventing gut symptoms in overweight adults
This study tests whether taking probiotics can help prevent stomach and gut discomfort in people who are overweight or have obesity. You may be eligible if you are at a certain weight and age, eat a balanced diet, and do not have chronic gut issues.
ColeraineAges 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 - NCT07112014Recruiting
Digestive symptoms in eating disorder recovery by diet
This study looks at how different eating plans affect stomach and bowel symptoms in people with anorexia or bulimia nervosa during weight recovery. It aims to understand how symptoms change over time to improve care.
Bad BevensenAges 12 years+ - NCT06937814Recruiting
Effect of Humiome Post LB on Gut Comfort in Healthy Adults
This study tests a supplement called Humiome Post LB to see if it helps with mild digestive discomfort like bloating, irregular stools, and urgency. If you have frequent but not severe bowel issues (10-20 movements per week with loose stools) and are generally healthy, this may be for you.
London, OntarioAges 18–75 - NCT06451913RecruitingPhase 4
Probiotic for gut health during Lyme disease antibiotics
This trial tests if a probiotic (Saccharomyces boulardii) can help maintain healthy gut bacteria while you take antibiotics for the early skin rash of Lyme disease (erythema migrans). You'll take amoxicillin for 14 days, plus either the probiotic or a placebo.
LjubljanaAges 18 years+
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Common questions
- Are there clinical trials for gastrointestinal symptoms?
- Yes. Clin2 currently lists 32 recruiting gastrointestinal symptoms 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 symptoms 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 symptoms 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.