Finding the best method for fecal microbiota transplantation in IBS patients

The Optimal Route of Fecal Microbiota Transplantation for Irritable Bowel Syndrome

Not applicable Interventional Turku University Hospital · NCT05874830

This study is testing which method of fecal microbiota transplantation works better for adults with irritable bowel syndrome to help improve their symptoms.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment36 (estimated)
Ages18 Years to 70 Years
SexAll
SponsorTurku University Hospital Government
Locations3 sites (Lahti, Paijat-Hame and 2 other locations)
Trial IDNCT05874830 on ClinicalTrials.gov

What this trial studies

This study aims to determine the optimal route for fecal microbiota transplantation (FMT) in patients suffering from irritable bowel syndrome (IBS). Researchers will compare outcomes based on fecal microbiome samples and symptom questionnaires to assess differences in symptom severity between FMT administered via duodenogastroscopy and colonoscopy. IBS is a prevalent condition that significantly impacts quality of life, and this study seeks to explore the efficacy of FMT as a treatment option. The study will include adult participants aged 18-70 with moderate to severe IBS symptoms.

Who should consider this trial

Good fit: Ideal candidates for this study are adults aged 18-70 who have a diagnosis of IBS and experience moderate to severe symptoms.

Not a fit: Patients with other gastrointestinal diagnoses or those currently on antibiotics or probiotics may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide a more effective treatment option for patients with irritable bowel syndrome.

How similar studies have performed: Previous studies on fecal microbiota transplantation for IBS have shown mixed results, but some methods, like FMT via gastroscopy, have demonstrated promising outcomes.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Adult
* 18-70 years
* known of Finnish language
* IBS, (new or old diagnosis according to Roma III or IV criteria), all subtypes
* Informed consent
* Moderate to severe IBS symptoms, IBS-SSS \> 175

Exclusion Criteria:

* Pregnancy
* Antibiotic or probiotic treatment, on-going or previous month
* Abuse of drugs, alcohol or medications
* Other diagnosis besides IBS causing the GI symptoms, such as IBD, microscopic colitis or bile acid diarrhea

Where this trial is running

Lahti, Paijat-Hame and 2 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions IBS - Irritable Bowel SyndromeMicrobial SubstitutionIBSFMTFecal microbiota transplantmicrobiome
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.