CI

At a glance

ClinicalIndex Comparison Record
Phase 3Active· 133 enrolled
Drug / intervention
Fecal Microbiota Transplantationbiological
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT05174273
NCT05174273Phase 3Active

Understanding the Neurocognitive Effects of Fecal Microbiota Transplantation in Major Depressive Disorder Patients With and Without Irritable Bowel Syndrome

Valerie Taylor·interventional·Posted Dec 30, 2021·Updated Mar 19, 2026

In Brief

A Phase 3 clinical trial evaluating Fecal Microbiota Transplantation for Major Depressive Disorder and Irritable Bowel Syndrome. Active but no longer recruiting, targeting 133 participants across 1 site.

Detailed Summary

This study is a phase 2/3 open-label controlled trial (CT) in which adults with Major Depressive Disorder (MDD) and adults who have MDD plus comorbid Inflammatory Bowel Syndrome (IBS) will be assigned to either receive oral Fecal Microbiota Transplantation (FMT) or to continue with the treatment they are currently receiving in a Treatment As Usual (TAU) arm. An IBS alone group receiving TAU will be recruited as a clinical control group. The primary goals of this study are to determine effectiveness, safety and tolerability of oral FMT in adults with MDD and in MDD who have comorbid IBS. Additional goals are to characterize patterns and progressions of cognitive and neural correlates associated with MDD and with MDD + IBS and to determine if they improve with FMT. It is known that both, individuals with MDD and those with MDD and IBS show cognitive alterations as well as changes in neural structures, but this study is designed to see if those are changed with treatment response to FMT. Additionally, trial feasibility will be monitored via recruitment rate, study visits adherence and participant retention to inform future trial scalability."

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesCanada
Collaborators--

Timeline

Phase 3Active
20222023202420252026
First PostedDec 30, 2021
Enrollment StartApr 6, 2022
Primary CompletionOct 21, 2024
Study CompletionOct 21, 2026
TodayJul 2, 2026
Enrollment to primary: 2.5 yearsPosted 4.5 years ago

Interventions

Fecal Microbiota Transplantationbiological

FMT is a technique in which intestinal microbiota are transferred from a healthy screened donor to a patient, with the goal being to introduce or restore a stable microbial community in the gut.