Autologous Fecal Microbiota Transplantation (Auto-FMT) for Prophylaxis of Clostridium Difficile Infection in Recipients of Allogeneic Hematopoietic Stem Cell Transplantation

A Randomized Controlled Trial of Autologous Fecal Microbiota Transplantation (Auto-FMT) for Prophylaxis of Clostridium Difficile Infection in Recipients of Allogeneic Hematopoietic Stem Cell Transplantation

Status

Active, not recruiting

Phases

Phase 2

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT02269150

Enrollment

Registered

2014-10-20

Start date

2014-10-31

Completion date

2026-10-31

Last updated

2025-11-17

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

Conditions

Allogeneic Hematopoietic Stem Cell

Keywords

Recipients, Transplantation

Brief summary

The purpose of this study is to see if fecal microbiota transplantation (FMT) will prevent the future development of CDI. This is also known as fecal bacteriotherapy or stool transplant.

Detailed description

This is a randomized, open-label, controlled study designed to assess the efficacy of autologous fecal microbiota transplantation (auto-FMT) for prevention of Clostridium difficile infection (CDI) in patients who have undergone allogeneic hematopoietic stem cell transplantation (allo-HSCT). Patients will be enrolled prior to allo-HSCT; feces will be collected and stored from all participating subjects prior to the initiation of conditioning regimens, analyzed by deep 16S rRNA gene sequencing, and tested by assay for intestinal pathogens including Clostridium difficile. Later in the course of transplantation, following engraftment (defined as the first day of three consecutive days, that the absolute blood neutrophil count is at above f 500 mm3), subjects will undergo fecal testing for presence of Bacteroidetes by 16S PCR. Subjects will be eligible for study if they have a microbiologically diverse pre-transplant colonic microbiota, and if the post-engraftment specimen contains Bacteroidetes at a prevalence equal to or below (0.1%)

Interventions

BIOLOGICALfecal microbiota transplantation (FMT)

OTHERNo fecal microbiota transplantation (FMT), routine management

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

TREATMENT

Masking

NONE

Eligibility

Sex/Gender

ALL

Age

18 Years to No maximum

Healthy volunteers

Inclusion criteria

* Planned to undergo allo-HSCT * Age ≥ 18 years

Exclusion criteria

* As determined by the study investigators or consenting professionals, prolonged antibiotic treatment, as prevention or suppression of an ongoing infection, where treatment involves gut-perturbing antianaerobic antibiotics * Has severe colitis of any etiology or a history of inflammatory bowel disease (IBD).

Design outcomes

Primary

Measure	Time frame	Description
Clostridium difficile infection (CDI)	up to 1 year following randomization	CDI is defined as diarrheal stool (unformed stool conforming to the shape of a specimen container), and a positive test for toxin-producing C. difficile (either by toxin B gene PCR or cytotoxicity assay).

Countries

United States

Outcome results

None listed

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