Effects of GlutenShield, a Prebiotic, Probiotic, and Enzyme Supplement, on the Gut Microbiome of Adults With GI Symptoms

January 17, 2018 updated by: Kaitlyn Webb, East Tennessee State University

Effects of Shield Nutraceuticals GlutenShield on Short Chain Fatty Acid Production, Gut Microbiota, and Markers of Inflammation in Individuals With GI Symptoms

This study evaluates the effects of combination probiotic, prebiotic, and enzyme supplementation on the colonic microbiome of individuals with GI symptoms (e.g. diarrhea, constipation, increased gas). Half of the participants will receive the placebo while the other half will receive the supplement for 28 days.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Unknown

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

The purpose of this research is to identify if there is a relationship between GlutenShield, a combination prebiotic, probiotic, and enzyme supplement, and the gut environment.

The study will be a split, 28-day randomized, partially blinded design. Subjects will be randomly assigned to one of two groups. One group will complete a 28-day treatment period with GlutenShield taken 3x/day with meals. The other group will complete a 28-day placebo period with the placebo taken 3x/day with meals. The placebo will contain Avicel (cellulose) and bentonite powder (to have a similar color as GlutenShield). Participants will be blinded to which group/ treatment they are being given. Serum and fecal samples will be collected at baseline and on day 29. Participants will also complete a gastrointestinal symptoms questionnaire, a food frequency questionnaire and a psychosocial measures of self questionnaire.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Anticipated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
20

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Study Locations

  • United States
    • Tennessee
      • Johnson City, Tennessee, United States, 37614
        • Recruiting
        • East Tennessee State University
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Individuals who express gastrointestinal symptoms more than three times per week as identified through the Gastrointestinal Symptom Questionnaire (such as abdominal pain/ discomfort, heartburn, acid regurgitation, bloating, nausea and vomiting, abdominal distention, eructation (burping), increased gas, decreased passage of stools, increased passage of stools, loose stools, hard stools, urgent need for defecation, or feeling of incomplete evacuation)
  • Healthy with few health complications
  • Adults ages 18 or older

Exclusion Criteria:

  • Anyone under the age of 18
  • Individuals diagnosed with celiacs, IBS, Crohn's disease, ulcerative colitis, or short bowel syndrome
  • Individuals who have previously taken GlutenShield
  • Individuals who are currently taking prebiotics, probiotics, enzymes, non-steroidal anti-inflammatory drugs, fish oil, and/or fiber supplements (unless use is halted in the voluntary 2-week washout period prior to the study)
  • Individuals who are pregnant or intend to become pregnant during the duration of the study

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: BASIC_SCIENCE
  • Allocation: RANDOMIZED
  • Interventional Model: PARALLEL
  • Masking: DOUBLE

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
EXPERIMENTAL: GlutenShield
3 capsules of GlutenShield supplement/day for 28 days
Dietary supplement: GlutenShield
combination probiotic, prebiotic, and enzyme supplement
PLACEBO_COMPARATOR: Placebo
3 capsules of the placebo (Avicel and bentonite powder (for color))/ day for 28 days
Other: Placebo
Avicel (cellulose) and bentonite powder

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Change in Fermentation Profile- Short Chain Fatty Acid Concentration
Time Frame: Baseline and Day 29
Measuring change short chain fatty acid concentrations in fecal matter (analyzed using gas chromatography) from baseline to after 28 days.
Baseline and Day 29
Change in Microbial Population and Concentration
Time Frame: Baseline and Day 29
Measuring change from baseline of fecal microbial populations and concentrations (using genomic sequencing).
Baseline and Day 29
Change in Inflammation
Time Frame: Baseline and Day 29
Measuring change in serum markers of inflammation (IgA and IgG, GM-CSF, IFN-γ, IL-2, IL-4, IL-6, IL-8, IL-10, TNF-α) over 28 days. Values will be used to determine a change in overall inflammatory status.
Baseline and Day 29

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Dietary Intake
Time Frame: Baseline
Identifying typical dietary intake over the past month using Block Food Frequency Questionnaire
Baseline
Physical Activity
Time Frame: Baseline
Identifying typical physical activity over the past month using Block Food Frequency Questionnaire
Baseline
Change in Oxidative Stress
Time Frame: Baseline and Day 29
Measuring changes in serum markers of oxidative stress (8-isoprostaglandin F2a)
Baseline and Day 29
Changes in Psychosocial Measures of Self
Time Frame: Baseline and Day 29
Measuring changes in psychosocial measures of self (Profile of Mood States 2nd Edition survey)
Baseline and Day 29
Changes in Adipokine Response
Time Frame: Baseline and Day 29
Measuring changes in adipokine response (Bio-Plex Pro Human Diabetes Adipsin and Adiponectin assays)
Baseline and Day 29

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
East Tennessee State University

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
East Tennessee State University, College of Clinical and Rehabilitative Health Sciences
East Tennessee State University, College of Public Health, Department of Health Sciences
Shield Nutraceuticals

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Kaitlyn Webb, BS, East Tennessee State University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (ANTICIPATED)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
January 22, 2018

Primary Completion (ANTICIPATED)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
March 31, 2018

Study Completion (ANTICIPATED)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
March 31, 2018

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
January 5, 2018

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 17, 2018

First Posted (ACTUAL)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
January 18, 2018

Study Record Updates

Last Update Posted (ACTUAL)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
January 18, 2018

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 17, 2018

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
January 1, 2018

More Information

Terms related to this study

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 1117.22f

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

There is no plan to share individual participant data. Data will be de-identified.

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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