Clinical trials
Probiotic clinical trials
Below are recruiting probiotic clinical trials, each written for real people, not researchers. We’re tracking 214 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07334210Recruiting
Gut bacteria in sarcopenia and probiotic development
This study looks at gut bacteria differences between older adults with muscle loss (sarcopenia), healthy older adults, and younger adults. Results may help develop probiotics to support muscle health.
Seongnam-si, Gyeonggi-doAges 20–90 - 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 - NCT06873165Recruiting
Gut bacteria treatment for fatty liver disease
This study tests whether a specially designed gut bacteria treatment can help people with fatty liver disease and related health issues like high blood sugar, high cholesterol, or high blood pressure. It aims to see if the treatment is safe and improves liver health.
TaipeiAges 18–70 - NCT07287306Recruiting
Probiotic study on gut health in healthy adults
This trial tests two probiotics, BLa80 and LRa05, to see how they affect the gut's natural bacteria and related substances. It may help understand how these probiotics support overall health.
Guangzhou, GuangdongAges 18–60 - NCT07268404Recruiting
Women's Hormonal and Metabolic Health Study
This trial tests a program to help women with irregular periods and hormonal imbalance symptoms like mood swings or skin issues. You'll track your symptoms and provide blood samples from home to see if the program improves your health.
San Francisco, CaliforniaAges 18–45 - NCT07258303Recruiting
Probiotic Spray for Gum Disease in Older Adults
This trial tests an oral spray that contains good bacteria (probiotics) to help prevent and treat gum disease in older adults. It may be a simple addition to your daily routine to support gum health.
Hanoi, HanoiAges 35 years+ - NCT07252778RecruitingPhase 2/Phase 3
Probiotics for endurance athletes
This trial tests if taking a probiotic supplement for a short time can help athletes who do endurance sports like rowing. If you are a healthy athlete on a national team, this study might help you understand how probiotics affect performance.
Poznan, WielkopolskaAges 16–50 - NCT07241052Recruiting
Probiotic spray for cavities in kids
This study tests a probiotic spray that you use in your mouth to help stop cavities from getting worse and to prevent new ones. It is for children ages 7–10 who already have at least one cavity.
Hà Nội, Sơn TâyAges 7–10 - NCT07241182Recruiting
Mushroom extract supplement for lung cancer chemo patients
This study tests whether a supplement from a medicinal mushroom (Antrodia cinnamomea, also known as niu zhang zhi) can improve quality of life for people with lung cancer who are receiving platinum-based chemotherapy.
TaipeiAges 18–99 - NCT07231588RecruitingEarly Phase 1
Probiotic for stomach side effects during pelvic radiation
This trial tests an oral probiotic (a mix of 5 good bacteria) to see if it can reduce stomach and bowel side effects from pelvic radiation. It may help people undergoing radiation for certain pelvic cancers.
Cincinnati, OhioAges 18 years+ - NCT07212907Recruiting
Probiotic and Ginger for Stomach Discomfort
This trial tests whether a combination of probiotics and ginger can improve symptoms and quality of life for people with functional dyspepsia (a condition causing ongoing stomach discomfort). Participants will take the supplement for several weeks and report how they feel.
IstresAges 18 years+ - NCT07219498Recruiting
Probiotics for muscle soreness after exercise
This trial tests whether taking a probiotic supplement for 5 weeks can reduce muscle soreness after exercise. If you exercise regularly and are generally healthy, you may be able to join.
Minneapolis, MinnesotaAges 18–30 - NCT06789484Recruiting
Study of gut bacteria in healthy newborns
This study looks at the gut bacteria of healthy, full-term newborns whose parents plan to breastfeed exclusively. It aims to understand how the gut microbiome develops in early life.
HvidovreAges Up to 1 day - NCT07207434RecruitingPhase 2
Probiotic supplement for pregnant women to improve gut health
This trial tests whether taking a probiotic during pregnancy can improve gut health in women living in areas where gut infections are common. It may help reduce harmful bacteria and related health problems for both you and your baby.
Matiari, SindhAges 18–49 - NCT06936137RecruitingPhase 3
Probiotics for weight gain from antipsychotic medication
This trial tests if taking a probiotic supplement can help prevent or reduce weight gain caused by certain antipsychotic medications. It is for people with schizophrenia who have gained significant weight after starting these medications.
Cairo, AbbassiaAges 18–45 - NCT07182890RecruitingPhase 4
Probiotic for anxiety and depression in functional dyspepsia
This trial tests whether a probiotic called Clostridium Butyricum can help reduce anxiety and depression in people with functional dyspepsia (a type of stomach discomfort without a clear cause). If you have mild to moderate anxiety or depression along with your stomach symptoms, this study may offer a potential new treatment option.
Xi’an, ShanxiAges 18–80 - NCT07182942RecruitingPhase 4
Study of Xiqing and Probiotics for Chronic Kidney Disease
This trial tests if taking Xiqing (a Chinese herbal product) and probiotics together can help people with chronic kidney disease (CKD) by improving gut health and making their medication work better. It is for patients with moderate to advanced CKD who do not need dialysis yet.
Wuhan, HubeiAges 18–75 - NCT07167342RecruitingPhase 4
Can a probiotic prevent polyp regrowth after colonoscopy?
This trial tests whether taking a probiotic called Clostridium Butyricum after colon polyp removal can lower the chance of polyps coming back. It is looking for people who had adenomas removed and are not already taking certain supplements or antibiotics.
Qingdao, ShandongAges 18–75 - NCT07168772Recruiting
Probiotic supplement for multiple sclerosis
This study tests whether adding a probiotic supplement to your usual MS treatment (or to no treatment) can help manage relapsing-remitting multiple sclerosis. It aims to see if the probiotic is safe and beneficial as an add-on therapy.
Barcelona, BarcelonaAges 18–60 - NCT07154992Recruiting
Preventing colds in kids with a probiotic
This trial tests if a daily probiotic (Lacticaseibacillus rhamnosus CRL1505) can help prevent upper respiratory infections (like colds and sore throats) in healthy children ages 3 to 12. If your child often gets sick, this supplement might reduce how often they catch a cold.
MurciaAges 3–12 - 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 - NCT07134790RecruitingPhase 2
Probiotics to improve gut health during pregnancy
This trial tests whether taking probiotics during pregnancy can improve gut health in mothers living in areas where gut infections are common. It is for women who are in their first or early second trimester and who have certain bacteria in their stool.
Bobo-DioulassoAges 18 years+ - NCT07094984Recruiting
Clearing resistant gut bacteria: three FMT methods
This trial tests three different ways to clear antibiotic-resistant bacteria from your gut using fecal microbiota transplant (FMT). It may help if you have a confirmed resistant infection and are looking for a treatment to reduce the risk of future infections.
WarsawAges 18 years+ - NCT07076849RecruitingPhase 2
Probiotics for Iron in Pregnancy
This trial tests if taking a probiotic can help improve iron levels and overall blood health in pregnant women who are at risk for iron deficiency. If you are between 10 and 16 weeks pregnant with a single baby and have slightly low iron, this study may help you.
Chicago, IllinoisAges 18–45
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Common questions
- Are there clinical trials for probiotic?
- Yes. Clin2 currently lists 214 recruiting probiotic 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 probiotic 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 probiotic 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.