~11 spots leftby Sep 2025

Fecal Microbiota Transplant for Irritable Bowel Syndrome

Recruiting in Palo Alto (17 mi)
MG
Overseen byMadhusudan Grover, MBBS
Age: 18+
Sex: Female
Travel: May Be Covered
Time Reimbursement: Varies
Trial Phase: Phase 2
Recruiting
Sponsor: Madhusudan (Madhu) Grover, MBBS
Must not be taking: Immunosuppressants, Antibiotics, NSAIDs, others
Disqualifiers: Immune deficiency, Active cancer, Severe psychiatric disorder, others
Prior Safety Data

Trial Summary

What is the purpose of this trial?

The purpose of this study is to learn the efficacy and safety of fecal microbiota transplantation (FMT) using stool from a donor with low proteolytic activity and containing the bacteria Alistipes putredinis in patients with post-infection irritable bowel syndrome (PI-IBS) and high proteolytic activity. Proteolytic activity is the breakdown of proteins into smaller polypeptides or amino acids.

Will I have to stop taking my current medications?

The trial requires that you stop taking new probiotics, antibiotics, and NSAIDs (non-steroidal anti-inflammatory drugs) at least 4 weeks before joining. You also cannot use treatments that affect bowel movement, except for loperamide.

What data supports the effectiveness of the treatment Fecal Microbiota Transplantation for Irritable Bowel Syndrome?

Research suggests that Fecal Microbiota Transplantation (FMT) can be a promising treatment for irritable bowel syndrome (IBS) by restoring the balance of gut bacteria, which is often disrupted in IBS patients. Studies have shown that FMT can improve symptoms and quality of life, although the effectiveness may vary based on factors like the number of FMT infusions and patient characteristics.12345

Is fecal microbiota transplantation (FMT) safe for humans?

Research indicates that fecal microbiota transplantation (FMT) is generally safe for humans, including those with irritable bowel syndrome (IBS), based on studies that have assessed its safety over periods ranging from 3 months to 3 years.46789

How is fecal microbiota transplantation (FMT) different from other treatments for irritable bowel syndrome (IBS)?

FMT is unique because it involves transferring healthy bacteria from a donor's stool to a patient's gut to restore balance in gut bacteria, which is different from traditional IBS treatments that often focus on managing symptoms with medication or diet changes.12347

Research Team

MG

Madhusudan Grover, MBBS

Principal Investigator

Mayo Clinic

Eligibility Criteria

This trial is for individuals with post-infection irritable bowel syndrome (PI-IBS) who experience moderate to severe symptoms. They must be able to undergo a colonoscopy and not have constipation-dominant IBS. People with recent abdominal surgery, bleeding disorders, low neutrophil count, active cancer, certain GI diseases, or those pregnant or on immune-suppressing drugs cannot participate.

Inclusion Criteria

I do not have constipation-predominant IBS.
I can safely have and agree to a colonoscopy.
My IBS symptoms are moderate to severe.
See 1 more

Exclusion Criteria

Absolute neutrophil count (ANC) <500 IU/ml
I cannot undergo a colonoscopy with sedation due to severe bowel or medical conditions.
Pregnant or lactating
See 10 more

Trial Timeline

Screening

Participants are screened for eligibility to participate in the trial

2-4 weeks

Treatment

Participants receive fecal microbiota transplantation (FMT) using stool from a donor or their own stool

12 weeks

Follow-up

Participants are monitored for safety and effectiveness after treatment

4 weeks

Treatment Details

Interventions

  • Autologous Fecal Microbiota Transplantation (Microbiota Restoration)
  • Donor Fecal Microbiota Transplantation (Microbiota Restoration)
Trial OverviewThe study tests the effectiveness of fecal microbiota transplantation (FMT). Participants will receive stool from a donor with specific bacteria thought to help PI-IBS symptoms versus their own stool. The goal is to see if this can reduce protein breakdown in the gut linked to IBS.
Participant Groups
2Treatment groups
Experimental Treatment
Placebo Group
Group I: Donor Fecal Microbiota Transplantation GroupExperimental Treatment1 Intervention
Subjects will receive a fecal microbiota transplantation (FMT) using stool from a donor
Group II: Autologous Fecal Microbiota Transplantation GroupPlacebo Group1 Intervention
Subjects will receive a fecal microbiota transplantation (FMT) using their own stool

Autologous Fecal Microbiota Transplantation is already approved in Canada for the following indications:

🇨🇦
Approved in Canada as Fecal Microbiota Transplantation for:
  • Recurrent Clostridioides difficile infection
  • Research use for IBS

Find a Clinic Near You

Who Is Running the Clinical Trial?

Madhusudan (Madhu) Grover, MBBS

Lead Sponsor

Trials
1
Recruited
40+

Findings from Research

Fecal microbiota transplantation (FMT) showed significant long-term efficacy in reducing IBS symptoms, with response rates of 69.1% and 77.8% for the 30g and 60g treatment groups, respectively, at 2 years, and 64.9% and 71.8% at 3 years, compared to only 26.3% in the placebo group.
No long-term adverse events were reported, indicating that FMT is a safe intervention for IBS, with improvements in quality of life and a decrease in dysbiosis index observed in the treatment groups.
Efficacy of Fecal Microbiota Transplantation for Patients With Irritable Bowel Syndrome at 3 Years After Transplantation.El-Salhy, M., Winkel, R., Casen, C., et al.[2022]
A single stool fecal microbiota transplantation (FMT) significantly improves symptoms in patients with irritable bowel syndrome (IBS), showing reductions in IBS severity scores at multiple time points (1, 3, 6, 24, and 36 months) compared to placebo.
FMT is considered safe, as it does not increase the risk of serious adverse events, and the quality of evidence supporting its efficacy is moderate, although capsule FMT did not show positive effects.
Fecal microbiota transplantation for irritable bowel syndrome: a systematic review and meta-analysis of randomized controlled trials.Wang, M., Xie, X., Zhao, S., et al.[2023]
A systematic review of 8 randomized trials involving 472 IBS patients found that fecal microbiota transfer (FMT) did not significantly improve overall IBS symptom severity compared to placebo, indicating limited efficacy of FMT for IBS treatment.
While the oral route of FMT showed some initial improvement in response rates, this did not translate into a significant reduction in symptom severity, and the benefits appeared to diminish over time, suggesting that alternative bacterial-based treatments may be more effective.
Efficacy and safety of fecal microbiota transplant in irritable bowel syndrome: An update based on meta-analysis of randomized control trials.Abdelghafar, YA., AbdelQadir, YH., Motawea, KR., et al.[2022]

References

Responses to faecal microbiota transplantation in female and male patients with irritable bowel syndrome. [2021]
The Effect of Allogenic Versus Autologous Fecal Microbiota Transfer on Symptoms, Visceral Perception and Fecal and Mucosal Microbiota in Irritable Bowel Syndrome: A Randomized Controlled Study. [2020]
Fecal Microbiota Transplantation for Patients With Irritable Bowel Syndrome: A Meta-Analysis of Randomized Controlled Trials. [2022]
Pre-Antibiotic Treatment Followed by Prolonged Repeated Faecal Microbiota Transplantation Improves Symptoms and Quality of Life in Patients with Irritable Bowel Syndrome: An Observational Australian Clinical Experience. [2022]
Fecal microbiota transplantation in the treatment of irritable bowel syndrome: a single-center prospective study in Japan. [2022]
Efficacy of Fecal Microbiota Transplantation for Patients With Irritable Bowel Syndrome at 3 Years After Transplantation. [2022]
Fecal microbiota transplantation for irritable bowel syndrome: a systematic review and meta-analysis of randomized controlled trials. [2023]
Efficacy and safety of fecal microbiota transplant in irritable bowel syndrome: An update based on meta-analysis of randomized control trials. [2022]
Long-term effects of fecal microbiota transplantation (FMT) in patients with irritable bowel syndrome. [2022]