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Fecal Microbiota Transplant for Patients With Chronic Pouchitis

Safety and Efficacy of Healthy to Inflamed Pouch Fecal Microbiota Transplantation

Status
Recruiting
Phases
Early Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05829109
Enrollment
16
Registered
2023-04-25
Start date
2024-09-01
Completion date
2026-12-31
Last updated
2025-07-15

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Chronic Pouchitis, Pouchitis

Brief summary

The purpose of this research study is to assess the safety and efficacy of fecal microbiota transplant (FMT) in the treatment of chronic pouchitis.

Detailed description

The purpose of this research study is to assess the safety and efficacy of fecal microbiota transplant (FMT) in the treatment of chronic pouchitis. FMT has been successfully used in the treatment of recurrent Clostridiodes difficile infection and has shown benefit in the treatment of ulcerative colitis in clinical trials. The success of FMT in these patients is because of the reconstitution of the recipient's unhealthy gut bacteria with the donor's healthy gut bacteria. Surgery to remove the colon is required in a subset of patients with ulcerative colitis that does not respond to medical therapy. In these patients, an internal pouch is created from small intestine to function as a stool reservoir and avoid an ostomy after the colon is removed. Inflammation of the pouch, pouchitis, is common after surgery and can manifest as diarrhea, pelvic pain, urgency and blood in the stool. Chronic pouchitis occurs in up to 20% of patients and there is no approved treatment. A number of studies have evaluated FMT in patients with chronic pouchitis, but have proven unsuccessful. This is likely because these studies have used stool from patients with a colon and transplanted it into patients with a pouch. This is problematic because the gut bacteria of the colon and pouch are not similar, and putting healthy stool from a colon may not reconstitute a healthy pouch microbiome. The specific purpose of this project is to transplant stool from patients with a healthy pouch to patients with an inflamed pouch.

Interventions

The intervention consists of the following steps: * Step 1: Vancomycin 125 mg orally every 6 hours and metronidazole 250 mg orally every 6 hours for 5 days. * Step 2: Bowel preparation with 10 ounces of magnesium citrate. * Step 3: Two FMT doses will be administered via enema one week apart using stool from donors with a durably healthy pouch.

Sponsors

Maia Kayal
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

This will be a pilot study of 16-18 patients who will each receive FMT.

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Patients age 18 or greater with UC who have undergone TPC with IPAA and have one of the following chronic pouchitis phenotypes, each defined as: * Chronic antibiotic dependent pouchitis: * The need for continuous antibiotic therapy (\>4 weeks) to maintain clinical remission and a history of at least 2 attempts in the last 24 months to stop antibiotic therapy resulting in pouchitis episodes, OR * Active pouchitis with a modified Pouchitis Disease Activity Index (mPDAI) ≥5 and a history of ≥4 antibiotic therapies in the last 12 months * Chronic antibiotic refractory pouchitis: * Active pouchitis with a modified Pouchitis Disease Activity Index (mPDAI) ≥5 with no response to antibiotics * Crohn's disease like pouch inflammation on biologic or small molecule therapy with persistent symptoms: * Pre-pouch ileal inflammation, strictures, and/or fistulae, AND * Active biologic or small molecule therapy, AND * Persistent symptoms with mPDAI clinical sub-score ≥ 2

Exclusion criteria

Patients with UC who underwent TPC with IPAA and meet one of the following criteria will be excluded: * Allergy to vancomycin, metronidazole, or ingredients present in the FMT * Women who are breastfeeding * Women who are pregnant * Participants with fever \> 100.4F/38C or other signs of active illness * Active treatment with biologics (infliximab, adalimumab, golimumab, vedolizumab, ustekinumab) * Active treatment with immunomodulators (azathioprine, 6-mercaptopurine, methotrexate), steroids or any investigational drugs * Crohn's disease like pouch inflammation * Active enteric infection * Isolated cuffitis * Clinically significant strictures of the pouch inlet or outlet * Participation in a clinical trial in the preceding 30 days * Any condition that the physician investigators deems unsafe, including other conditions or medications that the investigator determines will put the participant at greater risk from FMT

Design outcomes

Primary

MeasureTime frameDescription
Number of patients with FMT related adverse events8 weeksThe number of patients with FMT related adverse events through week 8 classified according to the Medical Dictionary for Regulatory Activities (MedDRA) and categorized according to the NIH Criteria for Adverse Events.

Secondary

MeasureTime frameDescription
Number of patients with endoscopic response8 weeksThe number of patients with endoscopic response assessed via pouchoscopy and defined as a decrease from baseline in mPDAI endoscopic subscore \> 2 points at week 8.
Change in recipient fecal microbial diversity via metagenomics analysisBaseline and up to 8 weeksThe change in recipient fecal microbial diversity after FMT relative to baseline assessed via stool collection and using metagenomics analysis.
Change in recipient fecal microbial diversity via strain strain isolationBaseline and up to 8 weeksThe change in recipient fecal microbial diversity after FMT relative to baseline assessed via strain isolation - to isolate and sequence the gut microbial strains from each donor
Change in recipient microbe trackingBaseline and up to 8 weeksThe change in recipient fecal microbial diversity after FMT relative to baseline assessed by recipient microbe tracking.
Number of patients in clinical remission8 weeksThe number of patients in clinical remission assessed via patient interview and defined as mPDAI clinical subscore ≤4 points and no need for antibiotic therapy at week 8.
Change in myeloid cellsBaseline and 8 weeksThe change in the mucosal immune profile before and after FMT as measured by myeloid cells
Change in T cellsBaseline and 8 weeksThe change in the mucosal immune profile before and after FMT as measured by T cells
Change in NK cell subsetsBaseline and 8 weeksThe change in the mucosal immune profile before and after FMT as measured by NK cell subsets
Change in B cellsBaseline and 8 weeksThe change in the mucosal immune profile before and after FMT as measured by B cells

Countries

United States

Contacts

Primary ContactMaia Kayal, MD, MS
Maia.Kayal@mountsinai.org212-241-0150

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026