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Completed Not applicable Interventional Accepts healthy volunteers

Prebiotic Effects of Isomalto-oligosaccharide

ClinicalTrials.gov ID: NCT02433873

Public ClinicalTrials.gov record NCT02433873. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 4, 2026, 11:45 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

The primary purpose of this study is to evaluate the effect of an IMO nutritional supplement on gut microbiome, gut health, and body weight. Two formulations of the supplement will be evaluated; thus, there will be three study arms: Supplement A, Supplement B, and placebo. Stool samples will be analyzed for bacterial DNA. The gut bacterial DNA, body weight, and gut health data will be compared across supplement and placebo groups. Primary Aim 1: To evaluate the effect of the IMO supplement on gut bacterial abundance, diversity, and gene function across intervention and placebo groups, and across two doses of the intervention. Secondary Aim 1: To evaluate the effect of the IMO supplement on gut health across intervention and placebo groups, and across two doses of the intervention. Secondary Aim 2: To evaluate the effect of the IMO supplement on body weight across intervention and placebo groups, and across two doses of the intervention. 60 subjects, randomized to three arms (20 each: Supplement formula A, Supplement formula B or placebo) will take a daily dose of Supplement A, Supplement B, or placebo for 8 weeks. The supplement is a light syrup liquid. Ingredients that are in the supplement are: isomalto-oligosaccharide, water, mannitol, maltose, glucose, and glycerol. Ingredients that are in the placebo are: high maltose corn syrup (Satin Sweet™), water, and mannitol. Dose will be 500 mg during the first 4 weeks and then 1000 mg for second 4 weeks. Subjects will be instructed to take 500 mg/day of the supplement or placebo the first four weeks and 1000 mg/day of the supplement or placebo for the second four weeks. Subjects will be blinded as to whether they are receiving placebo or supplement. After screening and once enrolled, subject involvement includes visits to George Mason University, being weighed, dropping off stool samples, and completing a survey on gut health. Stool samples will be analyzed for bacterial DNA. The gut bacterial DNA, weight, and gut health data will be compared across supplement and placebo groups.

Study identification

NCT ID
NCT02433873
Recruitment status
Completed
Study type
Interventional
Phase
Not applicable
Lead sponsor
George Mason University
Other
Enrollment
54 participants

Conditions and interventions

Conditions

Interventions

Dietary Supplement

Eligibility (public fields only)

Age range
18 Years to 45 Years
Sex
All
Healthy volunteers
Accepts healthy volunteers

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Mar 31, 2015
Primary completion
Oct 31, 2015
Completion
Nov 30, 2016
Last update posted
Mar 22, 2017

2015 – 2016

United States locations

U.S. sites
1
U.S. states
1
U.S. cities
1
Facility City State ZIP Site status
George Mason University Fairfax Virginia 22030

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT02433873, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Mar 22, 2017 · Synced Sep 4, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT02433873 live on ClinicalTrials.gov.

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