Personalized Fiber and Insulin Sensitivity

April 22, 2024 updated by: Maastricht University Medical Center

Personalized Microbial Substrates to Prevent Type 2 Diabetes

In this project the investigators intend to study the therapeutic potential of a personalized fibre mixture in individuals at high risk of developing T2DM, and aim to address the following key objectives:

  1. To investigate whether a mixture of fermentable fibres, which differ in DP and side chains, will stimulate a broad range of SCFA-producing bacterial genera, resulting in enhanced chronic SCFA production throughout the whole colon with a large variation between individuals;
  2. To unravel whether providing personalized fibre mixtures, selected based on the individuals' initial microbiota and capacity for SCFA production is crucial to successfully improve host insulin sensitivity and metabolic health

Study Overview

Status

Status

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

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.

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 (Actual)

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.
44

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 Locations

  • Netherlands
    • Limburg
      • Maastricht, Limburg, Netherlands, 5229ER
        • Maastricht University

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

30 years to 70 years (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

Overweight/obese insulin resistant/prediabetic participants (age 30-70 y, BMI ≥ 28 kg/m2 < 40 kg/m2)

Exclusion Criteria:

  • Type 2 diabetes mellitus (defined as fasting plasma glucose ≥ 7.0 mmol/L and 2h glucose ≥ 11.1 mmol/L)
  • Gastroenterological diseases or abdominal surgery;
  • Cardiovascular diseases, cancer, liver or kidney malfunction, disease with a life expectancy shorter than 5 years;
  • Abuse of products; alcohol and drugs, excessive nicotine use defined as >20 cigarettes per day;
  • Plans to lose weight or following of a hypocaloric diet;
  • Regular supplementation of pre- or probiotic products, use of pre- or probiotics 3 months prior to the start of the study;
  • Intensive exercise training more than three hours a week;
  • Use of any medication that influences glucose or fat metabolism and inflammation (i.e. NSAIDs);
  • Regular use of laxation products;
  • Use of antibiotics in the last three months (antibiotics use can alter substantially the gut microbiota composition).
  • Follow a vegetarian diet.

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 Assignment
  • 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.
Active Comparator: isocaloric fermentable oligosaccaride
Dietary supplement: Fermentable oligosaccharide
Supplementation period 12 weeks
Experimental: Personalized fiber mixture
12 g for 2 weeks, followed by 24 g for 10 weeks
Dietary supplement: Personalized fiber mixture
Supplementation period 12 weeks

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
Peripheral insulin sensitivity
Time Frame: Before and 12 week after the start of the intervention
The change of peripheral insulin sensitivity (m-value) as assessed by a hyperinsulinaemic-euglycemic clamp
Before and 12 week after the start of the intervention

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
Energy expenditure (indirect calorimetry)
Time Frame: Before and 12 week after the start of the intervention
The change in energy expenditure as measured via ventilated hood system
Before and 12 week after the start of the intervention
Substrate oxidation (indirect calorimetry)
Time Frame: Before and 12 week after the start of the intervention
The change in substrate oxidation as measured via ventilated hood system
Before and 12 week after the start of the intervention
circulating SCFA
Time Frame: Before and 12 week after the start of the intervention
The change in concentrations of circulating SCFA
Before and 12 week after the start of the intervention
Faecal SCFA
Time Frame: Before and 12 week after the start of the intervention
The change in concentrations of faecal SCFA
Before and 12 week after the start of the intervention
Faecal microbiota composition and in vitro microbial activity testing
Time Frame: Before and 12 week after the start of the intervention
The change in faecal microbiota composition assessing abundances of bacteria and diversity indices as assessed via 16s rRNA gene
Before and 12 week after the start of the intervention
Circulating hormones such as insulin
Time Frame: Before and 12 week after the start of the intervention
The change in concentrations of circulating hormones in peripheral blood
Before and 12 week after the start of the intervention
Circulating metabolites such as glucose
Time Frame: Before and 12 week after the start of the intervention
The change in concentrations of metabolites in peripheral blood
Before and 12 week after the start of the intervention
body fat percentage
Time Frame: Before and 12 week after the start of the intervention
The change in body fat percentage as assessed using DEXA scans
Before and 12 week after the start of the intervention
fat mass
Time Frame: Before and 12 week after the start of the intervention
The change in fat mass in kg as assessed using DEXA scans
Before and 12 week after the start of the intervention
lean mass
Time Frame: Before and 12 week after the start of the intervention
The change in lean mass in kg as assessed using DEXA scans
Before and 12 week after the start of the intervention
visceral fat
Time Frame: Before and 12 week after the start of the intervention
The change in visceral fat in gram as assessed using DEXA scans
Before and 12 week after the start of the intervention
body weight
Time Frame: Before and 12 week after the start of the intervention
The change in body weight in kg using a weight scale
Before and 12 week after the start of the intervention

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.
Maastricht University Medical Center

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 (Actual)

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.
November 5, 2021

Primary Completion (Actual)

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.
April 22, 2024

Study Completion (Actual)

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.
April 22, 2024

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).
May 12, 2022

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.
May 12, 2022

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.
May 18, 2022

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.
April 23, 2024

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.
April 22, 2024

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.
May 1, 2022

More Information

Terms related to this study

Additional Relevant MeSH Terms

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.
  • NL76905.068.21

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

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.

Cookie Settings

We use cookies to ensure that we give you the best experience on our website. For more details carefully read our Privacy and Cookies Policy. ...>>>You can change your preferences or withdraw your consent at any time by deleting the cookies from your website or computer as described in the policy. Please accept it and choose your preferences by ticking the corresponding boxes in the "Manage Settings" section below. Please carefully read our Terms of Service before you proceed with using any part of this website.
«Manage Settings