Treatment
Fecal Microbiota clinical trials
We’re tracking 114 recruiting studies that include Fecal Microbiota, each written for real people, not researchers, below.
Recruiting studies
- NCT06496412Recruiting
Fecal transplant for brain health in type 1 diabetes
This trial tests whether transplanting healthy bacteria into your gut can improve memory and thinking skills in people with long-term type 1 diabetes. If you have had type 1 diabetes for 10 years or more, this study may help find a new way to protect your brain.
Changsha, HunanAges 18–60 - NCT06776029RecruitingPhase 2
Fecal transplant for radiation-induced rectal bleeding
This study tests whether a fecal (stool) transplant can help heal rectal damage caused by pelvic radiation. The treatment may decrease bleeding and improve symptoms for people whose supportive care hasn't worked well.
Guangzhou, GuangdongAges 18–75 - NCT06346093Recruiting
Fecal transplant for advanced stomach cancer
This trial tests whether a fecal transplant (a stool donation from a healthy person) can help patients with advanced stomach cancer respond better to treatment. If you qualify, you would receive the transplant through a colonoscopy, possibly along with other standard therapies.
Shanghai, Shanghai MunicipalityAges 18 years+ - NCT05361785Recruiting
Fecal transplant to help IBS food sensitivity
This study tests whether transferring gut bacteria from a healthy donor to a participant can reduce irritable bowel syndrome (IBS) symptoms related to food sensitivity. You may be asked to follow a low-FODMAP diet and receive a fecal microbiota transplant if you meet the study’s safety and health requirements.
Helsinki, Helsinki and UusimaaAges 18–75 - NCT03819803RecruitingPhase 3
Fecal transplant for gut graft-versus-host disease
This study tests whether restoring healthy gut bacteria using a fecal microbiota transplant can improve steroid-refractory gut graft-versus-host disease (aGvHD) after stem cell transplant. If your gut symptoms are your first episode and your stool bacteria diversity is low, this trial may be an option worth screening for.
Graz, StyriaAges 18–70 - NCT02543866RecruitingPhase 1
Fecal transplant to clear resistant gut bacteria in children
This Phase 1 study tests whether transferring stool microbiome (a fecal microbiota transplant) can help clear antibiotic-resistant bacteria living in the gut. It’s meant for children and teens who have had infections from these resistant bacteria and who can safely take the study’s planned treatment.
Seattle, WashingtonAges 7–21 - NCT07364617RecruitingPhase 2
Fecal transplant for steroid-resistant gut GVHD
This study tests if a fecal transplant (transferring healthy bacteria from a donor's stool into your gut) can help people with severe gut graft-versus-host disease that hasn't responded to steroids. It's for patients who have had a stem cell transplant and now have ongoing, severe gut symptoms.
TaoyuanAges Any age - NCT05967871RecruitingPhase 1
Testing poop-based therapy for kids with SIBO
This early study tests whether fecal microbiota transplant (a stool donation placed into the gut) is safe and practical for children with small intestinal bacterial overgrowth (SIBO). It may help reduce SIBO symptoms, but the main goal is to see if the treatment and study steps work well.
Hamilton, OntarioAges 3–18 - NCT06641778Recruiting
Fecal transplant for drug-resistant Klebsiella pneumonia
This trial tests whether transplanting healthy donor stool into the lungs can help treat a severe pneumonia caused by a bacteria that is resistant to many antibiotics. It may offer a new option for people whose infection is not responding to standard treatments.
Wuhan, HubeiAges 18–75 - NCT05502913RecruitingPhase 2
Fecal transplant plus cancer immunotherapy for lung cancer
This trial studies whether giving a fecal microbiota transplant (a stool-based sample from a carefully screened donor) alongside immune checkpoint inhibitors can improve outcomes in people with lung cancer. It aims to change the gut bacteria to help the immune system work better against the cancer.
BeershebaAges 18 years+ - NCT05803993Recruiting
Fecal transplant to ease constipation in irritable bowel syndrome
This trial tests whether transferring stool bacteria to the gut (fecal microbiota transplantation) can reduce symptoms of irritable bowel syndrome with constipation. It may help by changing the gut microbiome, but you must meet safety and health requirements.
RomaAges 18 years+ - NCT05803980Recruiting
Fecal transplant to ease IBS diarrhea symptoms
This study tests whether fecal microbiota transplantation (a stool-based treatment to change gut bacteria) can reduce symptoms of irritable bowel syndrome (IBS) that comes with diarrhea. You may be eligible if you’re an adult with diarrhea-predominant IBS and recent colonoscopy results that rule out other intestinal diseases.
RomaAges 18 years+ - NCT06290258RecruitingPhase 1/Phase 2
Fecal transplant for autism with stomach issues
This study tests if transplanting healthy bacteria into the gut can help children and young adults with autism who also have stomach problems. It aims to improve both digestive and behavioral symptoms.
Taoyuan CityAges 7–30 - NCT07746635Recruiting
Fecal transplant for obese women with polyendocrine metabolic ovarian syndrome
This study tests whether a fecal microbiota transplant (a transfer of healthy gut bacteria) can help women with polyendocrine metabolic ovarian syndrome who are also overweight or obese and planning a frozen embryo transfer. It aims to see if this treatment can improve hormone balance and possibly increase the chance of a successful pregnancy.
Shanghai, Shanghai MunicipalityAges 20–40 - NCT04997733RecruitingPhase 3
Stool transplant to maintain Crohn’s remission after stopping anti-TNF
This Phase 3 study tests whether transplanting stool bacteria can help people with Crohn’s stay in remission after they stop an anti-TNF medicine. It may help some patients who are currently doing well but need to come off anti-TNF treatment.
ParisAges 18–74 - NCT03562741Recruiting
Tracking outcomes of fecal transplant for repeated C. difficile
This study looks at how fecal microbiota transplantation (a transplant of healthy gut bacteria) works for people who get C. difficile infection repeatedly. It also focuses on collecting follow-up information to better understand which patients benefit and how.
Worcester, MassachusettsAges 16 years+ - NCT05266807RecruitingPhase 3
Capsule fecal transplant to prevent C. difficile coming back
This study tests whether taking a capsule form of fecal microbiota transplant (FMT) can help adults with their first C. difficile infection—or a first relapse—get better and reduce repeat episodes. Participants also take specific antibiotics for C. difficile as part of the study process.
Basel, BaselAges 18 years+ - NCT05321758Recruiting
Stool transplant as first treatment for kids with Crohn’s
This study tests whether transferring healthy gut bacteria from stool into the colon can work as a first treatment for children newly diagnosed with mild-to-moderate Crohn’s disease. It may help reduce inflammation and improve symptoms, and it requires regular colonoscopy to monitor progress.
Wuhan, HubeiAges 2–16 - NCT06192693RecruitingPhase 3
Fecal transplant to improve diabetes after weight loss surgery
This trial tests whether transferring healthy stool bacteria from a lean donor can help improve blood sugar control in people with type 2 diabetes who still have high blood sugar 1-5 years after weight loss surgery.
ParisAges 18–65 - NCT07387952Recruiting
Fecal transplant with nutrition help for chronic constipation
This trial tests if a fecal microbiota transplant combined with nutritional support can improve chronic constipation that hasn't gotten better with standard treatments. It's a small early study to see if the approach is safe and works.
BeijingAges 18–70 - NCT05664113RecruitingPhase 1
Fecal transplant for gut problems after stem cell transplant
This study tests whether transplanting healthy donor stool into the gut can help children and young adults with ongoing digestive issues after a stem cell transplant. It may improve symptoms like diarrhea or the need for feeding tubes.
Memphis, TennesseeAges Up to 22 years - NCT03895593Recruiting
Fecal transplant for stubborn intestinal infections
This study looks at “rescue” fecal microbiota transplantation (FMT), which replaces gut microbes using stool from a screened donor, for intestinal infections that have not improved with standard care. It may help patients whose infection keeps coming back or doesn’t respond to treatment.
Nanjing, JiangsuAges Any age - NCT07401680RecruitingPhase 1
Stool transplant for active ulcerative colitis
This trial tests whether a stool transplant (fecal microbiota transplantation) can help manage active ulcerative colitis. You would receive a transplant from a healthy donor to see if it improves your symptoms.
Calgary, AlbertaAges 18 years+ - NCT07276100RecruitingPhase 2
Fecal transplant to help liver cancer that worsened on first treatment
This trial tests whether transplanting healthy stool bacteria into your gut can help your own immune system fight liver cancer that has stopped responding to the standard first combination treatment (atezolizumab + bevacizumab). It is for patients whose liver cancer has started growing quickly despite that treatment.
Bologna, BOAges 18 years+
Common questions
- Are there clinical trials studying Fecal Microbiota?
- Yes. Clin2 currently lists 114 recruiting studies that include Fecal Microbiota, drawn from the U.S. registry and rewritten for real people so you can see what each is testing and who it's for.
- How do I know if I qualify for a Fecal Microbiota trial?
- Each study lists its own eligibility criteria — rules about condition, age, and prior treatments. On every Clin2 trial page we explain these in plain language and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Is Fecal Microbiota an approved treatment?
- A drug being studied in a trial may be investigational (still being tested) or already approved and being studied for a new use. Each study page explains what phase it's in. Clin2 does not provide medical advice — talk with your doctor about whether Fecal Microbiota or a specific trial is right for you.
Related treatments
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. A drug appearing here is being studied in a trial and may be investigational. Talk with your doctor about whether a specific treatment or trial is right for you.