Clinical trials
Synbiotics clinical trials
Below are recruiting synbiotics clinical trials, each written for real people, not researchers. We’re tracking 30 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT05966649Recruiting
Synbiotics for preventing preterm birth in higher-risk pregnancies
This trial tests whether taking synbiotics (a mix of “good” probiotics and “food” for them) can help lower the chance of going into labor too early. It’s for pregnant people with certain risk factors for preterm birth, and it compares outcomes while you follow the study plan.
Edegem, AntwerpenAges 18 years+ - NCT07465497Enrolling by invitation
Preventing Chemo Brain with Prebiotics and Synbiotics
This trial tests whether taking a special blend of prebiotics and synbiotics (friendly bacteria and food for them) can help prevent or reduce memory and thinking problems that sometimes happen during chemotherapy for breast cancer.
Zapopan, JaliscoAges 18 years+ - 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 - NCT07443280Recruiting
Gut health supplement study for dialysis patients
This trial tests whether a special blend of probiotics and prebiotics (called a synbiotic) can improve gut health and reduce harmful waste products in the blood for people on hemodialysis.
Taichung, Wuqi DistrictAges 18 years+ - NCT06544915Recruiting
Synbiotic vs. probiotic for heart and gut health
This study tests whether a synbiotic (a combination of probiotics and prebiotics) is better than a probiotic alone or a placebo for improving gut health and heart health. If you are a healthy adult who hasn't taken antibiotics recently and has few heart disease risk factors, you may be able to join.
Saratoga Springs, New YorkAges 18–60 - NCT07461233Recruiting
Gut Health and Synbiotics in Hemodialysis
This study tests whether taking a special mix of friendly bacteria and prebiotics (called synbiotics) can help improve gut health in people on hemodialysis. It may reduce inflammation and other complications related to kidney disease.
Taichung, Wuqi DistrictAges 18 years+ - NCT07575529Recruiting
Senior Milk Powder and Gut Health in Healthy Aging
This study tests whether a special milk powder containing beneficial bacteria and fiber (called synbiotics) can improve gut health in adults aged 40–65. You'll use a smartphone app and Apple Watch to track your health and provide samples over several weeks.
SingaporeAges 40–65 - NCT04226898RecruitingPhase 2
Synbiotic supplement to lessen schizophrenia symptoms
This Phase 2 trial tests whether a “synbiotic” supplement (a mix of probiotics and prebiotics) can reduce symptoms of schizophrenia or schizoaffective disorder. It may help by targeting gut-related immune and inflammation pathways that could affect brain symptoms.
Batlimore, MarylandAges 18–65 - NCT06901739Recruiting
Synbiotic for mental health in obesity
This trial tests if a synbiotic (a mix of probiotics and prebiotics) can improve mental health in people with obesity. It may help if you have obesity and also struggle with anxiety or depression.
Valencia, ValenciaAges 18–65 - NCT07235228Recruiting
Synbiotic supplement for irritable bowel syndrome
This trial tests whether a synbiotic (a mix of probiotics and prebiotics) called Vivatlac can improve gut health in people with moderate to severe irritable bowel syndrome (IBS). If you have IBS and are not already taking probiotics or antibiotics, you may be able to join.
JarocinAges 18–65 - NCT07355634Recruiting
Terraflora daily care for gut health
This trial tests if a daily probiotic supplement, Terraflora, can improve gut health in people with an imbalance of gut bacteria (dysbiosis). You may join if you're an adult with a stool test showing dysbiosis and are not taking certain other medications or supplements.
Richmond, VirginiaAges 25 years+ - NCT06905223Recruiting
Synbiotics for adults with mild to moderate depression
This pilot study tests whether taking a combination of probiotics and prebiotics (synbiotics) can improve mood in adults with depressive symptoms. It may be an option if you have mild to moderate depression and are looking for a supplement-based approach.
Hong KongAges 18 years+ - NCT06943469Recruiting
Study of special formula for babies with allergy risk
This study tests a special baby formula (partially broken-down protein with added prebiotics and probiotics) to see if it helps strengthen babies' skin barrier and reduce allergy risk. It's designed for newborns who have a family history of allergies.
BrugesAges 1 day–2 weeks - NCT05576818RecruitingPhase 3
Synbiotic add-on for people with Parkinson’s disease
This trial tests whether adding a synbiotic (a mix of probiotics and prebiotics) along with standard Parkinson’s medicines can improve symptoms or health outcomes. It’s mainly for adults with Parkinson’s disease at earlier to mid-stages who take dopamine replacement therapy.
Tanta, El GharbiaAges 45–65 - NCT05592886Recruiting
Oral probiotic-and-prebiotic drink to prevent colon polyps returning
This study tests whether an oral synbiotic (a probiotic plus a prebiotic) can reduce the chance that advanced colon growths come back after they were removed. It also looks at changes in stool-related bacterial “gene markers” that may signal lower risk over time.
Hohhot, Inner MongoliaAges 18–90 - NCT05821010RecruitingPhase 2
Synbiotics and fecal transplant for non-alcoholic liver inflammation
This Phase 2 study tests whether taking special gut-helping products (synbiotics) and/or a fecal microbiota transplant can improve non-alcoholic steatohepatitis (NASH), a type of liver inflammation. It may help by changing gut bacteria that may affect liver health, but you must meet specific safety and medical criteria.
Amsterdam, North HollandAges 18–75 - NCT07694791Recruiting
Gut health supplements for people on peritoneal dialysis
This trial tests whether taking probiotic and prebiotic supplements can improve gut health in people receiving peritoneal dialysis at home. It may help with digestion and overall well-being.
Monterrey, Nuevo LeónAges 18 years+ - NCT06389539Recruiting
Probiotic supplement study for bone health in older adults
This study tests whether a daily probiotic supplement can help prevent bone loss in adults aged 60 and older. It is designed for people who have chosen not to take standard osteoporosis medications.
Roslindale, MassachusettsAges 60 years+ - NCT06560385Recruiting
Probiotics for hair loss in breast cancer patients
This study tests whether a special mix of probiotics (good bacteria) can help prevent or reduce hair loss caused by chemotherapy for breast cancer. You would take the probiotic powder every day during chemotherapy.
Hong KongAges 18–60 - NCT06576986Recruiting
Can a supplement prevent mouth sores during chemo?
This trial tests whether a special supplement (synbiotic) can prevent mouth sores caused by chemotherapy in people with colorectal cancer. It's for those starting treatment who live in or near Belo Horizonte, Brazil.
Belo Horizonte, Minas GeraisAges 18 years+ - NCT06585982Recruiting
Synbiotics for MAFLD: gut health and liver fat study
This trial tests whether taking a synbiotic (a mix of helpful bacteria and fiber) can improve insulin levels and reduce inflammation in people with Metabolic Dysfunction-Associated Fatty Liver Disease (MAFLD). It may help by changing the balance of bacteria in your gut.
Semarang, SemarangAges 25–55 - NCT06615986RecruitingEarly Phase 1
Synbiotic supplement test for gut health
This trial tests a synbiotic supplement made from human milk sugars to see if it can improve gut bacteria balance in healthy adults. You might join if you are 18 to 99, generally healthy, and not taking medications that affect your gut.
Bethesda, MarylandAges 18–99 - NCT06647043Recruiting
Can synbiotics help irritable bowel syndrome?
This study tests whether a synbiotic (a mix of good bacteria and fiber) can improve symptoms of irritable bowel syndrome (IBS), especially for people with diarrhea-predominant or mixed type IBS, or functional diarrhea.
Kubang Kerian, KelantanAges 18–70 - NCT06948929Recruiting
Gut health supplement trial for Alzheimer's patients in Hong Kong
This trial tests whether a daily supplement of friendly bacteria and prebiotics (called a synbiotic) can help people with Alzheimer's. It looks at how the supplement affects thinking, behavior, and daily life over time.
ShatinAges 60–90
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Common questions
- Are there clinical trials for synbiotics?
- Yes. Clin2 currently lists 30 recruiting synbiotics 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 synbiotics 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 synbiotics 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.