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Safety of FMT: OpenBiome Outcomes and Longitudinal Follow-up (STOOL) for Recurrent Clostridium Difficile Infection

Safety of Fecal Microbiota Transplantation: OpenBiome Outcomes and Longitudinal Follow-up (STOOL) for Recurrent Clostridium Difficile Infection

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02403622
Acronym
STOOL
Enrollment
17
Registered
2015-03-31
Start date
2015-03-31
Completion date
2018-06-30
Last updated
2021-02-23

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

Conditions

Clostridium Difficile

Brief summary

The overarching objective of this study is to address the knowledge gap regarding the short-term and long-term safety of fecal microbiota transplants (FMT). The design will be a prospective, open-label, multi-center longitudinal cohort study to assess the short- and long-term safety of FMT as well as the clinical resolution of diarrhea among 150 patients with 3 or more episodes of clostridium difficile infection (CDI defined as 3 unformed stools over 24 hours for 2 consecutive days and either a positive stool test for CDI or pseudomembranes on colonoscopy/sigmoidoscopy). Subjects will be adult outpatients referred to one of the study centers after at least three recurrent episodes of CDI and previous treatment with at least one 10-day course of oral vancomycin or fidaxomicin. After FMT by colonoscopy/sigmoidoscopy or enema, patients will be followed prospectively and monitored for clinical resolution and adverse events at: 3 days (telephone), 3 weeks (clinical assessment), 8 weeks (telephone), 6 months (telephone), and 12 months (telephone) after FMT. Subjects who recur will be offered a second FMT by colonoscopy with a different donor. Microbiome analysis will be conducted from stool samples at baseline and each of the 5 follow-up intervals.

Interventions

DRUGFecal Microbiota Preparation

Frozen processed human fecal material for treating recurrent Clostridium difficile infections.

Sponsors

Brown University
CollaboratorOTHER
Edward Hospital
CollaboratorOTHER
Indiana University
CollaboratorOTHER
Tufts Medical Center
CollaboratorOTHER
Microbiome Health Research Institute
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

* Adult (age 18-75 years old) * Outpatient * Third or further documented CDI episode and * Unable to maintain CDI cure after standard therapy with oral vancomycin or fidaxomicin * Previous treatment with at least one course of tapered/pulse vancomycin or * Inability to taper or stop vancomycin or fidaxomicin without developing diarrhea requiring antibiotic therapy. * Improvement of CDI symptoms on vancomycin or fidaxomicin

Exclusion criteria

* Unable to comply with study follow-up procedures at discretion of MD * Unable to provide informed consent at discretion of MD * Participating in another clinical trial * Pregnant or nursing currently or planned pregnancy in next 1 year * Evidence of toxic megacolon or gastrointestinal perforation * Peripheral white blood cell count \>30 x 10\^9/L and/or temperature \>38 degrees Celsius * Admission to an intensive care unit within prior 7 days for any reason * Previously undergone FMT * Severely immunocompromised patients * HIV infection (any CD4 count) * AIDS-defining diagnoses * Inherited/primary immune disorder * Immunosuppressant medications: * Current or recent (\<3 months) treatment with anti-neoplastic agents * Current or recent (\<3 months) treatment with calcineurin inhibitors (tacrolimus, cyclosporine) * Current or recent (\<3 months) treatment with mycophenolate mofetil * Current or recent (\<3 months) treatment with monoclonal antibodies to B and T-Cells, anti-TNF, glucocorticoids, antimetabolites (azathioprine, 6-mercaptopurine) * Neutropenia with absolute neutrophil count (ANC) \<0.5 x 10\^9/L * Active gastroenteritis due to infectious cause other than CDI * Short gut syndrome * Colostomy * Ascites * End-stage liver disease * Untreated, in-situ colorectal cancer * Irritable bowel syndrome * Inflammatory bowel disease including Crohn's disease and ulcerative colitis * Microscopic colitis including collagenous colitis and lymphocytic colitis * Severe food allergy (anaphylaxis) that cannot be confirmed as having been excluded from a donor's diet within the five days prior to donation * Anorectal disorder/severe rectal sphincter tone abnormality or inability to retain enema material * Unable or unwilling to tolerate colonoscopy/sigmoidoscopy, colonoscopy prep, or enema for any reason at discretion of MD * Severe underlying disease that the patient is not expected to survive for the subsequent 12 months at the discretion of the MD. * Any conditions for which, in opinion of MD, the treatment may pose a health risk

Design outcomes

Primary

MeasureTime frameDescription
Short-term Safety of FMT as Measured by Absence or Presence of Related Serious Adverse Events< 6 weeks post FMTDetermine the short-term safety of FMT for the prevention of further CDI recurrence. Short-term safety was measured by absence or presence of related serious adverse events
Long-term Safety of FMT as Measured by Absence or Presence of Adverse Events> 6 weeks to 1 year post FMTDetermine the long-term safety of FMT for the prevention of further CDI recurrence

Countries

United States

Participant flow

Recruitment details

A total of 17 participants enrolled (signed consents) across four sites during the period between March 27, 2015 and October 4, 2017.

Pre-assignment details

Two enrolled participants withdrew from the study prior to intervention.

Participants by arm

ArmCount
Intervention: Fecal Microbiota Preparation
Open label single arm Dosage form: Screened human donor stool, sourced from human-derived microbes generated by healthy, screened donors. Route of administration: either colonoscopic/sigmoidoscopic FMT or retention enema FMT Dosing Regimen: 250 mL x 1 dose. In the event of a clinical non-response, a repeat single 250 mL dose will occur from a different donor Fecal Microbiota Preparation: Frozen processed human fecal material for treating recurrent Clostridium difficile infections.
17
Total17

Baseline characteristics

CharacteristicIntervention: Fecal Microbiota Preparation
Age, Customized
Age
18 to 35 years
0 Participants
Age, Customized
Age
35 to 55 years
8 Participants
Age, Customized
Age
55 to 75 years
9 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
0 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
17 Participants
Region of Enrollment
United States
17 Participants
Sex: Female, Male
Female
10 Participants
Sex: Female, Male
Male
7 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 15
other
Total, other adverse events
14 / 15
serious
Total, serious adverse events
4 / 15

Outcome results

Primary

Long-term Safety of FMT as Measured by Absence or Presence of Adverse Events

Determine the long-term safety of FMT for the prevention of further CDI recurrence

Time frame: > 6 weeks to 1 year post FMT

Population: Data were not collected therefore could not be reported.

Primary

Short-term Safety of FMT as Measured by Absence or Presence of Related Serious Adverse Events

Determine the short-term safety of FMT for the prevention of further CDI recurrence. Short-term safety was measured by absence or presence of related serious adverse events

Time frame: < 6 weeks post FMT

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Intervention: Fecal Microbiota PreparationShort-term Safety of FMT as Measured by Absence or Presence of Related Serious Adverse Events0 Participants

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