Fecal Microbiota Transplantation for the Treatment of Diarrhea-Predominant Irritable Bowel Syndrome

Phase 2

Completed

Conditions: Irritable Bowel Syndrome

Interventions: Drug: Placebo capsules
Drug: Fecal microbiota transplantation capsules

Registration Number: NCT02328547

Lead Sponsor: Montefiore Medical Center

Brief Summary: The objectives of this study are (1) to determine the efficacy of fecal microbiota transplantation (FMT), given as oral capsules, compared with placebo for the treatment of refractory diarrhea-predominant irritable bowel syndrome (IBS-D); (2) determine the impact of FMT on the intestinal microbiome of patients with IBS-D; and (3) assess the safety, feasibility, and tolerability of FMT for patients with IBS-D.

Detailed Description: This is a multicenter study including Montefiore Medical Center, Concorde Medical Group PLLC and the Medical Research Center of Connecticut/Yale-New Haven Hospital Langone Medical Center. Patients with IBS-D will be recruited from outpatient gastroenterology clinics at these institutions and referrals from the medical community.

FMT capsules and placebo capsules, provided by OpenBiome, Medford, MA, will be used for this study. Patients will be randomized to undergo FMT using fecal capsules (experimental group) or placebo capsules (control group) via a computer-generated program. All patients will cross-over into the alternate arm of the study at 12 weeks. Therefore, all patients enrolled will receive the experimental drug during the course of the study. Each patient will be enrolled in the study for a total of 6 months.

Intestinal microbiome analyses using DNA sequencing and non-cultivation-based approaches (16S DNA technology) will be performed in all patients in the experimental and control groups to assess stability of the microbiome over time.

Recruitment & Eligibility

Status: COMPLETED

Sex: All

Target Recruitment: 48

Inclusion Criteria

age 19-65 years
established diagnosis of IBS-D as determined by Rome III Criteria
moderate-severe disease activity (as determined by an IBS-Symptom Severity Score ≥175)
persistent symptoms despite conventional therapy
normal colonoscopy with biopsies in the past for work-up of IBS symptoms
negative work-up for celiac disease either by duodenal biopsies or negative serologies

Exclusion Criteria

pregnancy
nursing
cognitive impairment or severe neuropsychiatric comorbidities who are incapable of providing their own informed consent
severely immunocompromised or immunosuppressed patients (e.g., organ transplant recipients, severe neutropenia with an absolute neutrophil count of <500cells/mL, current treatment or treatment within 3 months with anti-neoplastic agents and HIV-positive patients with CD4 counts <200cells/mm^3)
treated with any antibiotics in the 3 months prior to FMT
GI symptoms can be explained by the presence of an underlying organic disease including, underlying inflammatory bowel disease, infectious enteritis, previously established and untreated small intestinal bacterial overgrowth or known motility disorder
previous FMT
severe (anaphylactic) food allergy
unable to comply with protocol requirements
American Society of Anesthesiologists (ASA) Physical Status classification IV and V
acute illness or fever on the day of planned FMT will be excluded (not randomized) with the option of including that subject at a future date
new antidepressant started or dose of antidepressant change <3 months prior to enrollment
elevated ESR or CRP within the past 3 months
baseline laboratory abnormalities on CBC, chemistry or liver tests
pain score >75 on IBS-SSS

Study & Design

Study Type: INTERVENTIONAL

Study Design: CROSSOVER

Arm && Interventions

Group	Intervention	Description
Placebo capsules	Placebo capsules	Intervention: Placebo capsules that do not contain donor stool or any active drug, prepared by OpenBiome, Medford, MA. 25 placebo capsules will be taken on three consecutive days.
FMT capsules	Fecal microbiota transplantation capsules	Intervention: Fecal microbiota transplantation capsules containing extensively screened donor stool, prepared by OpenBiome, Medford, MA. 25 FMT capsules will be take on three consecutive days.

Primary Outcome Measures

Name	Time	Method
Within and Between Group Comparisons of Disease Severity as Determined by Irritable Bowel Syndrome-Symptom Severity Score (IBS-SSS)	Baseline, Week 12 (before cross-over), Week 24	Within and between group comparisons of changes (from baseline) in Irritable Bowel Syndrome-Symptom Severity Score (IBS-SSS), obtained via administration of a Questionnaire, for each of the two arms/groups (FMT capsules first, and placebo capsules first). The scale range was 0-500 (min-max). Scores were averaged among time points to yield an overall mean score. Higher scores were indicative of greater disease severity (worse outcome). Subjects were categorized as having mild (75-175), moderate (175-300), or severe (\>300) irritable bowel syndrome (IBS) based on symptomology. Only the following time points were analyzed: Baseline vs Week 12 and Week 24.

Secondary Outcome Measures

Name	Time	Method
Depression as Measured by the Hospital Anxiety and Depression Scale (HADS). HADS-D (Depression)	Baseline, Week 12 (before cross-over), Week 24	Depression at baseline and at the time of cross-over (Week 12) as measured by Hospital Anxiety and Depression Scale (HADS). HADS-D (Depression) The Hospital Anxiety and Depression Scale (HADS) is a fourteen item scale which was administered via questionnaire. Seven of the items relate to anxiety (HADS-A) and seven relate to depression (HADS-D). Each item on the questionnaire is scored from 0-3 and this means that a person can score between 0 and 21 for either anxiety or depression. The HADS uses a scale and therefore the data returned from the HADS is ordinal. Higher HADS scores are indicative of more severe depression and anxiety. Only the following time points were analyzed: Baseline vs Week 12
Within and Between Group Comparisons of Quality of Life as Determined by the Irritable Bowel Syndrome-Quality of Life (IBS-QOL) Score	Baseline, Week 12 (before cross-over), Week 24	Within and between group comparisons of changes (from baseline) in Irritable Bowel Syndrome-Quality of Life (IBS-QOL), obtained via administration of a Questionnaire, for each of the two arms/groups (FMT capsules first, and placebo capsules first). Irritable Bowel Syndrome-Quality of Life (IBS-QOL) is administered via a questionnaire of 34 items each with an individual five-point response scale. The responses to these items are summed and averaged for a total score and then transformed to a 100-point scale for ease of interpretation based on a validated method. IBS-QOL is measured on a scale range of 0-100. Higher IBS-QOL scores are indicative of a better IBS-specific quality of life. Only the following time points were analyzed: Baseline vs Week 12
Intestinal Microbiota Composition Pre- and Post-FMT (Fecal Microbiota Transplantation)	Baseline and Week 1	Microbiota composition before and after FMT were assessed among FMT responders and FMT non-responders. Only patients who received FMT capsules at the start of this clinical trial were included. Placebo capsule recipients were not included in these analyses. Data were analyzed up to 12 weeks and not beyond. Microbiome data following cross-over were not analyzed because of the potential for carry-over and order effects in the second half of the trial. Outcomes assessed included alpha and beta diversity (Jensen-Shannon divergence) and abundance of Bacteroidetes, Firmicutes and Prevotella. All of the microbiome data that were analyzed are included in the table below. No additional microbiome data from this clinical trial were analyzed. Information on abundance of Prevotella was only available at baseline and week 1.
Anxiety as Measured by the Hospital Anxiety and Depression Scale (HADS). HADS-A (Anxiety)	Baseline, Week 12 (before cross-over), Week 24	Anxiety at baseline and at the time of cross-over (Week 12) as measured by Hospital Anxiety and Depression Scale (HADS). HADS-A (Anxiety) The Hospital Anxiety and Depression Scale (HADS) is a fourteen item scale which was administered via questionnaire. Seven of the items relate to anxiety (HADS-A) and seven relate to depression (HADS-D). Each item on the questionnaire is scored from 0-3 and this means that a person can score between 0 and 21 for either anxiety or depression. The HADS uses a scale and therefore the data returned from the HADS is ordinal. Higher HADS scores are indicative of more severe depression and anxiety. Only the following time points were analyzed: Baseline vs Week 12
Bowel Consistency as Measured by the Bristol Stool Form Scale (BSFS)	Baseline, Week 12 (before cross-over), Week 24	Bowel consistency as measured by the Bristol Stool Form Scale on a daily basis. The Bristol Stool Form Scale was administered via questionnaire. This scale is a diagnostic medical tool designed to classify the form of human feces into seven categories. Assigned categories range from 1-7 based on appearance of the stool. Type 1 and 2 stools indicate constipation. Type 4 are the ideal stools as they are easy to defecate while not containing excess liquid, Type 5 tends towards diarrhea, and Types 6 and 7 indicate diarrhea. Only the following time points were analyzed: Baseline vs Week 12
Number of Participants With Adverse Events as a Measure of Safety and Tolerability	All AEs over 24 weeks	The total number of participants in each of the arms/groups (FMT and Placebo) who experienced at least one adverse event (AE) as recorded in patient diaries.
Satisfaction With Fecal Microbiota Transplantation (FMT)	Week 12 following administration of FMT	Weekly assessments of satisfaction with the Fecal Microbiota Transplantation (FMT) will be recorded in patient diaries.
Change in Bowel Habits and Abdominal Pain After Fecal Microbiota Transplantation (FMT)	Week 12 following administration of FMT	Degree of improvement in bowel habits and abdominal pain will be recorded in patient diaries.
Number of Doctor or Emergency Department (ED) Visits Post-Fecal Microbiota Transplantation (Post-FMT) for Irritable Bowel Syndrome-D (IBS-D) Related Symptoms	Week 12 following administration of FMT	The number of doctor or ED visits post-Fecal Microbiota Transplantation for Irritable Bowel Syndrome-D (IBS-D) related symptoms will be recorded in patient diaries.
Initiation of New Medications Post-FMT for the Treatment of IBS-D Symptoms	Week 12 following administration of FMT	Initiation of new medications post-FMT for the treatment of IBS-D symptoms will be recorded in patient diaries.
Patient Attitudes Towards Fecal Microbiota Transplantation (FMT)	Week 12 following administration of FMT	Patient attitudes towards Fecal Microbiota Transplantation (FMT) will be recorded in patient diaries.
Tolerability of Fecal Microbiota Transplantation (FMT)	Week 12 following administration of FMT	Tolerability of Fecal Microbiota Transplantation (FMT) will be maintained in patient diaries.

Trial Locations

Locations (3): Medical Research Center of Connecticut
🇺🇸
Hamden, Connecticut, United States
Concorde Medical Group
🇺🇸
New York, New York, United States
Montefiore Medical Center
🇺🇸
Bronx, New York, United States