Clinical trials
Dysbiosis clinical trials
Below are recruiting dysbiosis clinical trials, each written for real people, not researchers. We’re tracking 45 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07453069RecruitingPhase 2
Vaginal microbiome treatment for women with previous failed embryo transfer
This study tests a vaginal treatment (FB301) to see if it helps improve the balance of bacteria in the vagina before a frozen embryo transfer. It may help women who have had a prior failed frozen embryo transfer and have a specific type of vaginal bacterial imbalance.
Wichita, KansasAges 18–45 - NCT06005298Recruiting
Testing SBIRT to help with PrEP and alcohol use
This study looks at whether talking about alcohol use can help people stick with their PrEP routine. It tests a simple program called SBIRT (Screening, Brief Intervention, and Referral to Treatment) to support your health and HIV prevention.
Louisville, KentuckyAges 18–85 - NCT05192499Recruiting
Study gut-and-lung bacteria in very young children with asthma
This study looks at whether differences in the body’s bacteria (in the gut and/or airways) can help predict which toddlers with asthma may develop a more severe form. It may help doctors identify children at higher risk earlier so they can be monitored more closely.
Brest, FinistèreAges 1–3 - NCT06668012Recruiting
Vaginal health study for premenopausal women
This study looks at changes in vaginal bacteria in women before menopause. It aims to understand why some women have higher vaginal pH and how it relates to symptoms.
BarcelonaAges 18–45 - NCT07429227Recruiting
Gut health and heart disease: a probiotic study
This trial tests whether natural extracts and probiotics can improve gut health in people who have had a recent heart attack (Acute Coronary Syndrome). It uses special exams to measure changes in gut bacteria.
Peschiera del Garda, VeronaAges 30–70 - NCT07212361Recruiting
Restoring infant gut bacteria with mother's microbes
This study tests whether giving healthy newborns a special mix of their own mother's friendly bacteria can help build a healthy gut. It is for mothers who had a healthy pregnancy, plan to breastfeed, and live near Helsinki.
HelsinkiAges Up to 50 years - NCT07209007Recruiting
Skin and gut bacteria in healed burn wounds
This study looks at how burns change the bacteria on your skin and in your gut. It may help doctors understand healing better.
SeoulAges 19–65 - NCT07191171Recruiting
Gut bacteria drugs and immunotherapy in lung cancer
This study looks at whether certain drugs (like antibiotics or other gut-bacteria-affecting medications) influence how well immunotherapy works for advanced non-small cell lung cancer. It may help find ways to improve treatment outcomes.
StrasbourgAges 18 years+ - NCT07869498Recruiting
Eye bacteria study for eyelid inflammation
This study looks at the bacteria on the eyelids of people with moderate to severe eyelid inflammation (blepharitis). It aims to understand if these bacteria are linked to the condition, which could lead to better treatments.
Jacksonville, FloridaAges 18 years+ - NCT07828093Enrolling by invitation
Effects of agave on performance and gut health in athletes
This trial studies whether eating agave, a natural sweetener, can improve physical performance and support healthy gut bacteria in athletes. If you are an athlete, this could help you understand how diet affects your training and digestion.
Yautepec, MorelosAges 18–40 - NCT07818109Enrolling by invitation
Risk factors for carrying resistant gut bacteria in the community
This study looks at why some healthy people carry resistant bacteria in their gut (called ESBL-producing bacteria). Researchers will collect stool and urine samples and ask about your daily life to find possible risk factors. You won't receive any treatment, but your participation can help scientists understand how to prevent the spread of these bacteria.
Buenos Aires, Buenos Aires F.D.Ages 18 years+ - NCT07794956RecruitingEarly Phase 1
Memory study for older adults with a care partner
This study tests a dietary product, called LpD3.5, to see if it can help older adults with mild memory problems. You and a care partner would take part together.
Tampa, FloridaAges 60 years+ - NCT07703371Recruiting
Kodo millet porridge and its effect on gut health and metabolic syndrome
This study tests whether eating Kodo millet porridge every day for 12 weeks can improve gut health and reduce risk factors for metabolic syndrome (like being overweight). If you are between 20 and 60 years old, are overweight or obese, and are willing to eat the porridge daily without changing your diet or exercise, you may be able to join.
Mysore, KarnatakaAges 20–60 - NCT07680816Recruiting
Study of gamma delta T cells in critically ill patients
This study looks at a type of immune cell called gamma delta T cells in patients who are very sick in the ICU, including those with and without sepsis. The goal is to understand how these cells work differently in these patients, which could help find better treatments.
Wuhan, Outside of the USAges 18–80 - NCT07648446Recruiting
Learning About Pulses and Gut Health in Children
This study teaches children ages 6–13 about pulses (beans, lentils, chickpeas) and how they affect gut health. Researchers want to understand whether eating pulses helps children's digestive systems work better.
Tallahassee, FloridaAges 6–13 - NCT07636850Recruiting
How almonds affect gut bacteria in children
This study looks at whether eating almonds changes the helpful bacteria in kids' stomachs and intestines. Researchers will give some children almonds to eat and study how it affects their digestive health.
Tallahassee, FloridaAges 6–13 - NCT06700044Recruiting
Probiotics for high-risk pregnancy
This study tests whether taking a probiotic supplement during pregnancy can help prevent complications in women at risk for preeclampsia. You would take a daily probiotic or placebo pill from about 20 weeks until delivery.
LundAges 18 years+ - NCT06809660Recruiting
Gut bacteria and cancer risk from everyday chemicals
This study looks at how chemicals in the environment (called endocrine disruptors) might affect the natural bacteria in your gut and whether that could play a role in colorectal cancer. If you are having a colonoscopy (endoscopy), you may be able to participate.
PoitiersAges 18 years+ - NCT06161285Recruiting
Gut germs and immune response in infant bronchiolitis
This study looks at how the germs in a baby's gut and their immune system respond to bronchiolitis (a common lung infection). If your baby is under 12 months and gets bronchiolitis during the RSV season, their participation could help us understand why some babies get very sick and others don't.
ClamartAges 1 day–1 year - NCT04853212Recruiting
Study gut microbiome differences in people with spondyloarthritis
This study looks at whether changes in the gut bacteria (called microbiome dysbiosis) are linked to spondyloarthritis. It compares people with the condition to people without it who are already planning a digestive scope for another reason.
Boulogne-BillancourtAges 18 years+ - NCT07259681Recruiting
A study on gut health, pelvic side effects, and ozone therapy
This study looks at the bacteria in your gut (gut microbiome) to see how it is affected by pelvic side effects from cancer treatment, and whether ozone therapy might help. It compares patients who have chronic pelvic side effects and are treated with ozone (cases) to those who do not have these side effects (controls).
Las Palmas de Gran Canaria, Las PalmasAges 18 years+ - NCT05824819Recruiting
Study gut and pelvic microbiome in endometriosis surgery
This study looks at differences in the body’s microbes in people with endometriosis (and sometimes infertility) who are having key procedures through a laparoscopy (a small-camera surgery). It may help doctors better understand what’s going on and improve future treatment choices.
KrakowAges 18–45 - NCT07199998Recruiting
How tampons and cups affect your vaginal health
This study looks at how tampons and menstrual cups affect your body's natural defenses and the healthy bacteria in your vagina. You might join if you are a healthy woman between 18 and 49 who has regular periods and uses or is willing to use these products.
Paris, Île-de-France RegionAges 18–49 - NCT07195006Recruiting
Malnutrition in pregnancy and child growth study
This study looks at how nutrition during pregnancy affects the health of mothers and babies, including gut health and growth. It compares women with low nutrition to those with healthy nutrition.
HarareAges 18 years+
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Dysbiosis trials by state
Studies with a site anywhere in these states.
Common questions
- Are there clinical trials for dysbiosis?
- Yes. Clin2 currently lists 45 recruiting dysbiosis 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 dysbiosis 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 dysbiosis 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.