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
- NCT05067595RecruitingPhase 1
Fecal transplant plus fiber for gut graft-versus-host disease
This Phase 1 study tests whether a fecal microbiota transplant (a stool-based treatment from a screened donor) plus a dietary fiber supplement can improve gut symptoms after a bone marrow transplant. It is aimed at people with mild to severe gut graft-versus-host disease (GVHD).
Seattle, WashingtonAges 18 years+ - NCT04014413Recruiting
Fecal transplant for gut and immune-related conditions
This trial studies whether fecal microbiota transplantation (FMT)—a medical procedure using stool from a screened donor to restore gut bacteria—can improve safety and outcomes for people with certain bowel, immune, and metabolic conditions. It may help if your symptoms are thought to be related to an unhealthy gut microbiome, though eligibility is broad and depends on specific safety factors.
Hong Kong, ShatinAges Any age - NCT04038619RecruitingPhase 1
Fecal transplant for immune-therapy diarrhea or bowel inflammation
This early-phase study tests whether stool/fecal microbiota transplant (a fecal transplant) can help people who develop significant diarrhea or colitis after immune-checkpoint therapy. It aims to reduce bowel inflammation and improve symptoms, while carefully checking for infections.
Houston, TexasAges 18 years+ - NCT05790356Recruiting
Fecal transplant to treat rheumatoid arthritis symptoms
This study tests whether transferring stool from a screened healthy donor into the gut can improve rheumatoid arthritis (RA) in people whose RA is in remission or low activity. It’s mainly trying to change the gut bacteria to reduce RA symptoms or flare-ups.
London, OntarioAges 18 years+ - NCT05739825Recruiting
Fecal transplant to change gut bacteria in C. difficile infection
This trial studies whether fecal microbiota transplantation (a procedure that transfers healthy stool bacteria) can change a person’s gut bacteria after repeated C. difficile infection. It may help reduce recurring infections by restoring a healthier balance of gut microbes.
RomaAges 18–90 - NCT07042438RecruitingPhase 2
Fecal transplant to improve CAR T therapy for lymphoma
This study tests whether a fecal transplant (transferring healthy gut bacteria) can improve outcomes for people with certain lymphomas who have taken strong antibiotics and are about to get CAR T-cell therapy (Yescarta). The goal is to see if rebuilding gut bacteria helps the treatment work better.
Duarte, CaliforniaAges 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+ - NCT06058520RecruitingEarly Phase 1
Capsule microbiome transplant for hidradenitis suppurativa
This trial tests whether taking capsules containing healthy gut bacteria (fecal microbiota transplant) can help treat hidradenitis suppurativa. You may qualify if you have HS and haven't taken antibiotics in the last 30 days.
Minneapolis, MinnesotaAges 18 years+ - NCT01905709Recruiting
Fecal transplant to treat recurring C. difficile infection
This trial studies using a fecal microbiota transplant (FMT)—healthy gut bacteria moved from a screened donor—to help treat recurring or hard-to-control C. difficile infection. It may help restore a healthier gut environment when standard treatments keep failing or the infection returns.
Englewood, New JerseyAges 18 years+ - NCT01868373Enrolling by invitationPhase 1
Fecal transplant study for hard-to-treat C. difficile diarrhea
This Phase 1 study tests defined fecal microbiota (healthy gut bacteria) given to people with C. difficile diarrhea that didn’t go away or came back soon after antibiotics. It may help by restoring a healthier balance of gut bacteria so the infection can stop recurring.
Houston, TexasAges 18 years+ - NCT06727877Recruiting
Predicting bowel disease in premature babies using gut bacteria
This study looks at the gut bacteria of premature babies to see if changes can predict a serious bowel condition (ulcero-necrotizing enterocolitis). It aims to use artificial intelligence to help doctors catch it early.
Clermont-FerrandAges Up to 1 day - NCT07348471Recruiting
Gut bacteria transplant for ICU delirium
This study tests whether giving a transplant of healthy gut bacteria (called fecal microbiota transplantation) can help treat delirium in ICU patients. It may improve brain function by restoring gut health.
WuhanAges 18–80 - NCT07172191Enrolling by invitation
Fecal transplant for adults with blood cancer and infections
This trial tests whether transplanting healthy donor bacteria (fecal microbiota) into the gut can help adults with blood cancers who have stubborn infections, C. diff, or complications after stem cell transplant. It may reduce dangerous germs and improve gut health.
Budapest, BudapestAges Any age - NCT07704255RecruitingPhase 4
Fecal transplant for stubborn H. pylori infection
This study tries a fecal microbiota transplant (placing healthy donor stool into your gut) to get rid of stubborn H. pylori infection that hasn't been cured by standard treatments. It's for people who have failed several rounds of therapy and have a stomach condition that makes eradication important.
Chengdu, SichuanAges 18–80 - NCT02636517Enrolling by invitationPhase 1
Fecal microbiome transplant for repeat C. difficile infection
This Phase 1 study tests whether transferring healthy gut bacteria (a fecal microbiome transplant) can help children with repeated or moderate-to-severe C. difficile infection. It focuses on changing gut bacteria to reduce ongoing infection and symptoms.
Philadelphia, PennsylvaniaAges 3–21 - NCT03983473Recruiting
Testing stool samples to find gut bacteria markers in inflammatory arthritis
This study looks at stool (poop) samples to see whether gut bacteria patterns can help identify certain inflammatory arthritis conditions in people who have Crohn’s disease or axial spondyloarthritis. It’s mainly about matching stool “biomarkers” to diagnoses, which may help doctors recognize these conditions more accurately in the future.
Nancy, LorraineAges 18 years+ - NCT06692179RecruitingPhase 1
Testing a freeze-dried fecal transplant during colon surgery
This trial tests if giving a special freeze-dried mixture of healthy gut bacteria right after colon surgery is safe and possible. It may help patients recover better after the procedure.
Minneapolis, MinnesotaAges 18–75 - NCT04935684RecruitingPhase 2
Fecal transplant after bone marrow transplant to improve gut health
This Phase 2 study tests whether a fecal microbiota transplant (a processed transplant of gut bacteria) after an allogeneic bone marrow transplant is safe and helpful. Participants may benefit by improving recovery in the gut microbiome during the post-transplant period.
AmiensAges 18 years+ - NCT07509450Recruiting
Fecal transplant study for CAR-T and stem cell transplant patients
This pilot study tests whether giving a fecal microbiota transplant before standard CAR-T therapy (for B-cell lymphoma) or reduced-intensity stem cell transplant (for AML or high-risk MDS) can improve treatment outcomes. It aims to see if restoring gut bacteria helps reduce complications.
Toronto, OntarioAges 18 years+ - NCT07243574Recruiting
Night owl sleep study: how sleep affects gut bacteria
This study looks at how different sleep patterns (short or long sleep) affect the bacteria in your gut. You will wear a sleep tracker, record your sleep and diet, and provide stool samples to see if changing your sleep schedule changes your gut health.
Miami, FloridaAges 20–40 - NCT04373473RecruitingPhase 2
Oral stool treatment to prevent ulcerative colitis flare-ups
This study tests whether taking freeze-dried (lyophilized) donor stool material by mouth can help prevent ulcerative colitis from coming back or causing intestinal inflammation. Participants are in remission and stay on their usual treatment while receiving the study product.
Houston, TexasAges 18 years+ - NCT06001333Recruiting
Fecal transplant to clear superbugs from the gut
This study tests whether a fecal transplant (FMT) can remove certain antibiotic-resistant bacteria from your gut. It might help people who carry superbugs like CPE or VRE but aren't currently on antibiotics.
Chuncheon, Gangwon-doAges 20 years+ - NCT05533983Recruiting
Stool transplant plus nivolumab for advanced solid cancers
This study tests whether transferring stool microbiome (“FMT,” stool transplant) along with nivolumab can improve outcomes in people with advanced solid cancers that kept worsening even after anti–PD-1/PD-L1 treatment. It also looks at stool and blood changes to understand why the treatment might work.
SeoulAges 19 years+ - NCT04264975Recruiting
Using gut microbiome tests and stool transfer in immunotherapy cancer
This trial studies whether changes in gut bacteria can help predict how well immunotherapy works for solid cancers. It also tests whether stool (fecal microbiota) from certain immunotherapy-responding people can improve outcomes for others who are not responding well.
Seoul, SeoulAges 19 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.