Clinical trials
Gut Microbiota clinical trials
Below are recruiting gut microbiota clinical trials, each written for real people, not researchers. We’re tracking 145 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07450872Recruiting
Gut health and symptoms in childhood cancer survivors
This study looks at how cancer survivors' symptoms (like pain, fatigue, or mood) are connected to the bacteria living in their gut. It aims to understand why some children have different symptom patterns after treatment, which could help doctors provide better care.
Hangzhou, ZhejiangAges 8–18 - NCT07440147Recruiting
Akkermansia and Berberine for night shift workers' insulin sensitivity
This trial tests whether taking a probiotic called Akkermansia muciniphila and a natural plant compound called berberine can improve how your body uses insulin. If you work night shifts regularly, this study may help you find a way to support your metabolic health.
Graz, StyriaAges 21 years+ - NCT07439640Recruiting
PEG laxatives for bowel prep and gut health after gallbladder removal
This study looks at how a common bowel prep medicine (PEG laxatives) affects gut bacteria in people who have had their gallbladder removed compared to those who still have one. It involves collecting stool samples before and after a colonoscopy to track changes over time.
Wuhan, HubeiAges 18–65 - NCT06146608Recruiting
Iron, gut bacteria, and how the body absorbs iron
This study looks at how different types of iron in food affect your gut bacteria and how well your body absorbs iron. It aims to understand the connection between diet, gut health, and iron levels in healthy adults.
Ithaca, New YorkAges 18–40 - NCT05473793Recruiting
Dried vegetables study for constipation and gut bacteria
This study tests whether eating a dried vegetable can improve bowel habits and change gut bacteria. It may help people who feel their bowel function is not working well and have hard or infrequent stools.
Wageningen, GelderlandAges 20–80 - NCT05623007Recruiting
Diet and gut bacteria study for vaccinated teens with COVID
This trial tests whether changing diet can shift gut bacteria in overweight or obese teens after COVID-19 vaccination. The goal is to see if dietary changes can affect health markers related to the gut and immune system.
Jakarta Pusat, DKI JakartaAges 12–17 - NCT07363551Recruiting
Omega-3 for depression in young people
This trial tests if omega-3 fatty acid supplements can improve depression in young people by reducing inflammation and changing gut bacteria. You may be eligible if you are a young person with a current major depressive episode.
Taichung, TaichungAges 13–18 - NCT07369830Recruiting
Probiotics for bowel function after rectal cancer surgery
This trial tests whether taking a probiotic supplement (Clostridium butyricum) can improve gut health and bowel function after surgery for very low rectal cancer. It may help patients who have a temporary ileostomy and are planning to have it reversed within 6 months.
Shanghai, Shanghai MunicipalityAges 18–75 - NCT07342621Recruiting
Testing a special formula for babies with cow's milk allergy
This study tests whether a special formula with added prebiotics, probiotics, and a human milk nutrient helps manage symptoms in infants with cow's milk protein allergy. If your baby is starting a hypoallergenic formula for the first time, this trial may be an option.
Valencia, ValenciaAges Up to 10 months - 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 - NCT07329595Recruiting
Tracking gut bacteria changes after severe burns
This study looks at how severe burns change the bacteria in your gut and your immune system. It will track these changes to better understand recovery and find new ways to help healing.
Debrecen, Hajdú-BiharAges 18–65 - 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 - NCT07306988RecruitingPhase 4
Treating H. pylori to improve metabolic syndrome
This trial tests whether treating H. pylori infection can help improve metabolic syndrome (a group of conditions like high blood sugar, abnormal cholesterol, and high blood pressure). It aims to understand how treatment changes your gut bacteria and overall health.
Nanjing, JiangsuAges 18–65 - NCT07300553RecruitingPhase 2
Gut bacteria and energy metabolism in health and IBD
This study looks at how the bacteria living in your gut affect your body's energy use. It includes both healthy volunteers and people with inactive Crohn's disease or ulcerative colitis.
ParisAges 18–50 - 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 - NCT07264985Recruiting
Gut bacteria and diarrhea in breast cancer patients on pyrotinib
This study looks at how gut bacteria relate to diarrhea in breast cancer patients who are taking a drug called pyrotinib. By understanding this link, doctors hope to better manage side effects in the future.
Wuhan, HubeiAges 18–75 - NCT07264998Recruiting
Gut bacteria study in breast cancer patients on Abemaciclib
This study looks at how gut bacteria changes in people taking Abemaciclib (a breast cancer drug) and whether that relates to diarrhea. It may help find ways to prevent or manage this side effect.
Wuhan, HubeiAges 18–75 - NCT06562842Recruiting
Exercise, Gut Health, and Type 2 Diabetes Study
This study looks at how exercise affects gut bacteria in people with type 2 diabetes. It may help explain why physical activity improves diabetes control.
TrikalaAges 45–65 - NCT07252427Recruiting
Gut bacteria in IBD with or without depression
This study looks at how the bacteria in your gut (gut microbiome) may differ between people with IBD who also have depression and those who don't. It aims to help understand the link between gut health and mood.
Jinan, ShandongAges 18 years+ - NCT07247838Recruiting
Gut bacteria changes in first-time stroke patients
This study looks at how gut bacteria change right after a first-time ischemic stroke. It aims to understand if these changes are linked to recovery or other health factors.
Nantong, JiangsuAges 18 years+ - NCT07229521Recruiting
Nattokinase for heart, gut, sleep, and brain health in metabolic syndrome with sleep issues
This study tests whether a supplement called nattokinase can improve heart health, sleep, thinking, and gut bacteria in people with metabolic syndrome and mild-to-moderate sleep apnea. If you have a larger waist, blood pressure or blood sugar issues, or imbalanced cholesterol, and have been diagnosed with mild or moderate sleep apnea, you may be eligible.
TaipeiAges 18 years+ - NCT07213271Recruiting
Exercise study for obese breast cancer survivors
This study tests whether a physical exercise program can improve metabolism, gut health, fitness, and quality of life in obese women who have completed breast cancer treatment at least one year ago.
BratislavaAges 25–70 - NCT07211321Recruiting
Diet, inflammation, and muscle loss in older adults
This study looks at how diet and gut health relate to muscle loss (sarcopenia) in adults 60 and older. It aims to understand links between inflammation, gut bacteria, and muscle strength so we can find better ways to prevent frailty.
Lanzhou, GansuAges 60 years+ - NCT07182500RecruitingPhase 2
Can probiotics protect your gut while traveling?
This trial tests whether taking a probiotic supplement can help keep your gut bacteria healthy during a short trip abroad. It's a good fit if you are generally healthy and planning a vacation or business trip under a week.
Huangpu, Shanghai MunicipalityAges 18–65
Hear when a new Gut Microbiota trial opens
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Common questions
- Are there clinical trials for gut microbiota?
- Yes. Clin2 currently lists 145 recruiting gut microbiota 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 gut microbiota 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 gut microbiota 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.