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
- NCT03148743Recruiting
Fecal transplant for gut graft-versus-host disease
This study tests whether a fecal transplant (FMT) can help treat gut graft-versus-host disease (gut GVHD), a condition where donated immune cells attack the intestines. If you have gut GVHD and meet age requirements, you may be eligible to receive this treatment in the trial.
Suzhou, JiangsuAges 10–60 - NCT05911997RecruitingPhase 1
Compare stool treatment options for repeat C. difficile infection
This Phase 1 study tests a stool-based treatment approach for people who keep getting C. difficile diarrhea that returns after antibiotics. The goal is to see whether the treatment is safe and works to stop future episodes.
New York, New YorkAges 18 years+ - NCT07196189Recruiting
Fecal transplant for eating disorders
This study tests whether a fecal microbiota transplant (transferring healthy donor stool into your gut) can help treat eating disorders like anorexia, bulimia, or binge eating disorder. It is for women ages 18 to 50 who have not had antibiotics in the last 3 months.
RouenAges 18–50 - NCT05786404RecruitingPhase 1
Fecal transplant study for people with active ulcerative colitis
This trial tests whether transplanting stool bacteria (called fecal microbiota transplantation, or FMT) can improve symptoms in people with active ulcerative colitis. You may be able to help test a new approach for restoring gut bacteria, while receiving standard ulcerative colitis care from your doctor.
Houston, TexasAges 18 years+ - NCT06423508Recruiting
Testing stool storage methods and gut bacteria differences
This trial will study how different storage methods affect stool samples for gut bacteria analysis. It aims to understand differences in gut bacteria between people over time. Participation involves providing stool samples.
Vienna, State of ViennaAges 18–70 - NCT06393400RecruitingPhase 1
Stool transplant with chemotherapy for advanced pancreatic cancer
This study tests if giving patients a stool transplant (also called FMT) in capsules along with their first chemotherapy can help treat advanced pancreatic cancer that cannot be removed by surgery.
London, OntarioAges 18 years+ - NCT07622849Enrolling by invitation
Fecal Microbiota Transplant for Transplant-Related Intestinal Damage
This trial tests whether transferring healthy gut bacteria from a donor to patients can help heal severe intestinal damage that occurs after bone marrow or stem cell transplants. The goal is to reduce pain, inflammation, and other complications from this serious side effect.
Suzhou, JiangsuAges 15–65 - NCT06478823Recruiting
Healthy stool donors for fecal transplant studies
This trial is looking for healthy stool donors to provide samples for fecal microbiota transplantation, a treatment that uses healthy bacteria from stool to help people with certain gut diseases. As a donor, you would give stool samples regularly to help others.
Paris, ParisAges 18–49 - NCT03787771Recruiting
Fecal transplant registry for donors and recipients
This is a registry that collects information from adults who either receive fecal microbiota transplant (FMT) or plan to receive it, and from people who have donated—or plan to donate—stool for FMT. It helps researchers understand who participates in these gut-microbiome treatments in real life.
Hong KongAges 18 years+ - NCT03819296RecruitingPhase 1
Fecal transplant to treat cancer immunotherapy bowel side effects
This early-phase study tests whether changing your gut bacteria with a fecal transplant can improve diarrhea or colitis caused by cancer immunotherapy. It may help people whose symptoms have not fully settled with standard treatments like steroids and other immune-blocking medicines.
Houston, TexasAges 18 years+ - NCT04970446RecruitingPhase 1/Phase 2
Fecal transplant to restore gut microbes in Crohn’s
This Phase 1/2 study tests whether a fecal microbiome transplant (FMT) can reduce active inflammation in people with Crohn’s disease. It’s designed for people who currently have signs of active bowel inflammation and can attend regular procedure visits.
Melbourne, VictoriaAges 18–70 - NCT05251389RecruitingPhase 1/Phase 2
Fecal microbiome transplant after anti-PD-1 melanoma not working
This trial tests whether a fecal microbiome transplant (FMT) can help your body respond better to anti-PD-1 immunotherapy in advanced skin melanoma. It is for people whose melanoma has progressed despite anti-PD-1 treatment.
AmsterdamAges 18 years+ - NCT05327790RecruitingPhase 2
Fecal transplant to boost new biologic treatment for ulcerative colitis
This trial tests whether fecal microbiota transfer (a stool-based therapy) can improve outcomes when added to starting a new biologic medicine for ulcerative colitis. It compares fecal transplant versus placebo (a sham treatment) to see if symptoms and inflammation improve faster or more strongly.
Edmonton, AlbertaAges 18–75 - NCT05333471RecruitingPhase 1/Phase 2
Fecal transplant for chronic bowel inflammation in CGD
This study tests whether transplanting stool microbiome (fecal microbiota transplant) can improve chronic colitis in people with chronic granulomatous disease (CGD). It aims to reduce bowel inflammation and symptoms by changing gut bacteria.
Bethesda, MarylandAges 10–60 - NCT05516472RecruitingEarly Phase 1
Fecal transplant study for people with frequent kidney stones
This trial tests whether transplanting donated stool microbiome (fecal microbiota transplantation) can change gut bacteria and help reduce harm from frequent kidney stones. You would provide urine and stool samples and have follow-up checks to watch for side effects.
Park City, UtahAges 18–69 - NCT05524649Recruiting
Probiotics for healthy newborns’ poop bacteria balance
This study looks at whether giving probiotics to healthy newborns changes the bacteria in their stool. It may help researchers understand early gut health, but it is only for babies who meet specific health and timing requirements.
Alcaldía Coyoacán, PueblaAges 1 day–3 months - NCT05654753RecruitingPhase 2/Phase 3
Fecal transplant for stubborn axial spondyloarthritis
This trial tests whether transplanting healthy stool bacteria (fecal microbiota transplantation) can reduce symptoms in people with axial spondyloarthritis (including ankylosing spondylitis) who are not improving enough with standard medicines. If you qualify, you may receive study capsules containing processed bacteria and be closely monitored for safety and symptom changes.
Boulogne-BillancourtAges 18–75 - NCT05669846RecruitingPhase 2
FMT plus pembrolizumab for advanced lung cancer after prior treatment
This Phase 2 trial studies whether adding fecal microbiome transplant (FMT) to pembrolizumab can help people with advanced, PD-L1–positive non-small cell lung cancer that has returned or progressed after anti–PD-1/PD-L1 therapy. You may be asked to give new tumor tissue and undergo gut procedures, because the study aims to change gut bacteria to boost the immune response.
Pittsburgh, PennsylvaniaAges 18 years+ - NCT05740319Recruiting
Test stool transplant to treat irritable bowel syndrome
This trial studies fecal microbiota transplantation, which is transferring stool bacteria from a healthy donor to help rebalance gut microbes. If you have irritable bowel syndrome (IBS) that hasn’t improved after several standard treatments, this study may see whether it reduces your symptoms and is safe.
Shanghai, Shanghai MunicipalityAges 18–70 - NCT06311006Recruiting
Safety registry for fecal transplant for C. diff
This registry tracks people who receive a fecal microbiota transplant (FMT) for a serious or repeat C. diff infection. It helps doctors better understand how safe and effective FMT is in real-world use.
ParisAges 18 years+ - NCT05321745Recruiting
Fecal transplant for children with Crohn’s disease
This trial tests whether transferring stool microbes (called fecal microbiota transplantation, or FMT) can improve Crohn’s disease in children who have not gotten better with usual treatments. If you qualify, the study will check symptoms and colon imaging/score changes over the study follow-up.
Wuhan, HubeiAges 2–16 - NCT06388863Recruiting
Fecal transplant for constipation in Parkinson's disease
This study tests whether a treatment called fecal microbiota transplantation (FMT) can help relieve constipation in people with Parkinson's disease. FMT uses healthy donor stool to improve gut bacteria, which may ease constipation and possibly improve Parkinson's symptoms.
Shanghai, Shanghai MunicipalityAges 40–75 - NCT06403111RecruitingPhase 2
FMT with immunotherapy and chemotherapy for advanced lung cancer
This trial tests a combination of fecal microbiota transplantation (FMT), immunotherapy, and chemotherapy as a first treatment for advanced non-small cell lung cancer that does not have a driver gene mutation. The goal is to see if adding FMT can help the immune system fight the cancer better.
ChangzhouAges 18–80 - NCT06405113RecruitingPhase 2
Fecal transplant, chemo, and immunotherapy for advanced stomach cancer
This trial tests a combination of fecal microbiota transplant (FMT), chemotherapy (SOX), and an immunotherapy drug (Sintilimab) as a first treatment for advanced stomach or gastroesophageal junction cancer that cannot be removed by surgery. The goal is to see if this combination can shrink tumors and improve outcomes.
ChangzhouAges 18–80
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.