FMT and Fiber in Patients With Metabolic Syndrome

Phase 2

Completed

• Conditions: Metabolic Syndrome; Obesity
• Interventions: Combination Product: Fecal Microbial Transplant; Dietary Supplement: Fiber; Dietary Supplement: Cellulose

• Registration Number: NCT03727321
• Lead Sponsor: University of Alberta

Brief Summary

This study is looking at the safety and effectiveness of stool transplant, also known as Fecal Microbiota Transplantation (FMT) and prebiotic supplementation in the management of metabolic syndrome.

Metabolic syndrome is a common progressive medical condition that is linked to obesity, diabetes, and heart disease. Obesity and metabolic syndrome are associated with abnormalities in gut flora which lead to chronic inflammation. This chronic inflammation is thought to worsen the insulin resistance and heart disease seen with metabolic syndrome. Current treatment strategies have shown limited effect, are expensive, and have side effects with long-term use.

FMT is a one-time treatment that has been shown to replace the abnormal gut flora and improve metabolic disease by increasing anti-inflammatory short chain fatty acid (SCFA) production. However, the effects from FMT are not permanent. Prebiotic supplementation is one strategy that may help to extend the benefits of FMT by helping sustain high SCFA levels. At this point, it is not known how FMT and prebiotics work together to affect SCFA levels in participants with metabolic syndrome.

This study will look at this interaction and answer if prebiotic therapy is effective in prolonging the benefits of FMT in participants with metabolic syndrome.

Detailed Description

3.0 Design This is an exploratory four-arm, parallel design, randomized placebo-controlled intervention study in obese individuals with metabolic syndrome to evaluate whether FMT from lean donors combined with supplementation with prebiotic fiber will have a clinically significant effect on metabolic parameters. The study includes a 2-week screening/baseline period followed by a single FMT and a 6 week study period in which prebiotic fiber or placebo will be added in powdered form to the subject's normal diet for the duration of the trial (Appendix 1). A follow-up visit at 12 weeks will be done to determine if beneficial effects are maintained in the absence of ongoing fiber intake. A parallel arm design was chosen to avoid cross-over effects.

The four groups are:

1. Control (Placebo FMT and cellulose)

2. FMT only (FMT followed by cellulose)

3. Prebiotic only (Placebo FMT and prebiotic fiber)

4. FMT + prebiotic fiber Schedule and Procedures: Subjects will attend a total of 5 clinic appointments throughout the study for anthropometric and blood pressure measurements, dietary intake, hunger and satiety, and quality of life assessment using questionnaires, and for collection of blood and fecal samples (Appendix 2). The intervention will be stopped at 6 weeks. A final follow-up visit will occur at 12 weeks for anthropometric and blood pressure measurements, and collection of blood and stool samples.

3.1 Randomization Subjects will be randomized to one of 4 groups via computer-generated numbers and stratified by gender. Individuals will be blinded as to their group allocation to reduce bias. Randomization concealment will be protected by several levels of security, including our secure website, password protection by only those authorized to randomize and a variable blocked randomization.

3.2 Maintenance

Randomized codes will be maintained in REDCAP. Codes will be broken at the end of the trial.

3.3 Trial Treatment

Fecal microbiome transplant (FMT): 50grams of FMT from a single, universal donor will be administered in 20-30 capsules taken by mouth. These capsules will be frozen at -700C until date of administration on day 1 of the trial. The FMT will be given after individuals have fasted overnight and completes a bowel preparation using Pico-Salax®, a routine colonoscopy preparation. The study will use only one donor to reduce variability in donor profiles unless this donor becomes unavailable at which point backup donors will be available. Placebo FMT will consist of cellulose pills.

Fiber Supplementation:

Soluble corn fiber (PROMITOR®: Tate\&Lyle)

* Women: 4.5 gm of PROMITOR by mouth days 1-3 increased to 9 gm daily from day 4 until trial completion.

* Men: 5.5 gm of PROMITOR by mouth days 1-3 increased to 11 gm by mouth daily from day 4 until trial completion.

Resistant Wheat Starch 4 (Fibersym®: MGP Ingredients):

* Women: 4.5 gm of powdered RS4 by mouth days 1-3 increased to 9 gm by mouth daily from day 4 until trial completion.

* Men: 5.5gm of powdered RS4 by mouth days 1-3 increased to 11 gm by mouth daily from day 4 until trial completion.

Acacia Gum (Pre-Hydrated Gum Arabic: TIC GUMS):

* Women: 4.5 gm of powdered acacia gum by mouth days 1-3 increased to 9 gm by mouth daily from day 4 until trial completion.

* Men: 5.5gm of powdered acacia gum by mouth days 1-3 increased to 11 gm by mouth daily from day 4 until trial completion.

The product will be supplied to patients on a weekly basis in pre-weighed foil packets.

Placebo: Placebo will consist of cellulose powder (Microcrystalline cellulose:Blanver) in identical foil packets.

3.4 Duration

The study duration is 12 weeks. Subjects will be seen in the clinic at recruitment, and then at 2 and 6 weeks following FMT. Intervention will be from 1-6 weeks. A final follow-up visit will occur at 12 weeks (Appendix 1)

Basic Information
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Recruitment & Eligibility
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Study & Design
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Trial Locations

Study Timeline

• Study Start: 2018-07-01
• Study First Submitted: 2018-10-24
• Study First Submitted QC: 2018-10-30
• Study First Posted: 2018-11-01
• Primary Completion: 2020-01-16
• Study Completion: 2020-01-16
• Status Verified: 2020-05
• Last Update Submitted: 2020-05-01
• Last Update Posted: 2020-05-05

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 68

Inclusion Criteria

• • Age ≥ 18 and < 65 years at the time of screening

  • BMI > 30

  • Total body weight fluctuation over the last 6 months less than 10%

  • Fasting plasma glucose > 5.6 mmol/L OR HgbA1c ≥5.5% OR patients receiving an antidiabetic medication

  • At least one of the following:

    • Fasting triglyceride ≥1.7 mmol/L OR receiving dyslipidemia medication
    • HDL cholesterol <1.03 mmol/L in males or <1.29 mmol/L in females OR receiving dyslipidemia medication
    • Known diagnosis of hypertension OR systolic blood pressure ≥130 or diastolic blood pressure ≥85 mmHg OR receiving antihypertension medication

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Exclusion Criteria

• • Systolic blood pressure ≥180 or diastolic blood pressure ≥110 mmHg at screening.

  • Triglyceride ≥6 mmol/L.
  • Acute infectious or inflammatory condition over the presiding 4 weeks.
  • Current or recent use (Previous 6 months) of insulin for diabetes control.
  • History of oropharyngeal or significant esophageal dysphagia, inflammatory bowel disease, colon cancer, or colonic polyps with high grade dysplasia.
  • History of autoimmune conditions or chronic inflammatory condition, such as rheumatoid arthritis, chronic active hepatitis B or C, HIV, chronic pancreatitis, advanced NASH, or liver cirrhosis.
  • Active malignancy.
  • Active substance abuse or excessive EtOH (defined as >2 X 8oz drinks/d).

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Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Fecal Microbial Transplant and cellulose	Fecal Microbial Transplant	1. Fecal Microbial Transplant - Fecal microbiome transplant (FMT): 50grams of FMT from a single, universal donor will be administered in 20-30 capsules taken by mouth. 2. Cellulose x 6weeks
Fecal Microbial Transplant and cellulose	Cellulose	1. Fecal Microbial Transplant - Fecal microbiome transplant (FMT): 50grams of FMT from a single, universal donor will be administered in 20-30 capsules taken by mouth. 2. Cellulose x 6weeks
Fiber	Fiber	Soluble corn fiber (PROMITOR®: Tate\&Lyle), Resistant Wheat Starch 4 (Fibersym®: MGP Ingredients), Acacia Gum (Pre-Hydrated Gum Arabic: TIC GUMS).
Fecal Microbial Transplant and Fiber	Fecal Microbial Transplant	1. Fecal Microbial Transplant 2. Soluble corn fiber (PROMITOR®: Tate\&Lyle), Resistant Wheat Starch 4 (Fibersym®: MGP Ingredients), Acacia Gum (Pre-Hydrated Gum Arabic: TIC GUMS).
Fecal Microbial Transplant and Fiber	Fiber	1. Fecal Microbial Transplant 2. Soluble corn fiber (PROMITOR®: Tate\&Lyle), Resistant Wheat Starch 4 (Fibersym®: MGP Ingredients), Acacia Gum (Pre-Hydrated Gum Arabic: TIC GUMS).
Placebo	Cellulose	Placebo: Placebo will consist of cellulose powder (Microcrystalline cellulose:Blanver) in foil packets.

Primary Outcome Measures

Name	Time	Method
Insulin Sensitivity Assessment	12 weeks	The homeostasis Model Assessment-Insulin Resistance (HOMA-IR) is a mathematical model to predict the interaction between glucose and insulin dynamics across a range of glucose plasma levels assuming a feedback circuit between the liver and β-cells in the pancreas

Secondary Outcome Measures

Name	Time	Method
Dietary Intake	12 week	Dietary intake will be assessed for each clinic using MyFitnessPal.
Gastrointestinal tolerance	12 weeks	Assessed via the standardized gastrointestinal tolerance questionnaire (categorical variables with no analog scale)
Health-related quality of life (HRQL): EQ-5D Index	12 week	Assessment of the current health related quality of life will be accomplished by conducting standardized interviews and by using the validated questionnaires EQ-5D Index. Participants will report perceived health outcomes using this validated survey, and rank overall perceived health from 0 (low)- 100 (high).
Inflammatory markers	12 week	. Levels of leptin, ghrelin, adiponectin, TNFα, IL-6, LPS (lipopolysaccharide), LPS-binding protein and zonulin will be determined using currently accepted laboratory techniques.
Anthropometric Measurements	12 weeks	BMI (kg/m2)
Stool Microbiome	12 weeks	Stool microbiome will be analyzed for Operational Taxonomic Unit determination.
Fasting lipid profile	12 weeks	Changes in Fasting lipid profile between baseline and 6 and 12 weeks
Glucose Tolerance Assessment	12 weeks	The oral glucose tolerance test (OGTT) is a dynamic test that reflects the efficiency of the body to dispose of glucose after an oral load. It is commonly used in clinical scenarios to diagnose glucose intolerance and diabetes. \[33\] After overnight fast (\> 8 h), blood samples for determination of glucose and insulin concentration will be taken at -5, 0, 30, 60, and 120 min following a standard oral glucose load.
Hunger and Satiety Assessment	12 weeks	Assessed via the standardized hunger and satiety questionnaire (categorical variables with no analog scale)

Trial Locations

Locations (2)

University of Alberta Hospital; 🇨🇦 Edmonton, Alberta, Canada

Royal Alexandra Hospital; 🇨🇦 Edmonton, Alberta, Canada