Non-Response to Exercise (NRE2)

May 6, 2020 updated by: Dr. Anja Boehm, University Hospital Tuebingen

Non-Response to Exercise - Identification of Factors Contributing to Exercise Non-response.

The purpose of this prospective intervention study is to find biomarkers and underlying pathomechanisms for non-response of improvement in glucose metabolism to exercise.

An additional goal is to identify non-responders at an early stage, where prevention strategies (pharmacologically or by specific training) will be successful.

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.

Detailed Description

At baseline and end of study, an intensive metabolic phenotyping including cerebral insulin sensitivity as well as tissue biopsies are performed in overweight untrained healthy participants at high risk for type 2 diabetes. During the study, an individual exercise training at 80% VO2max is performed for 9 weeks. Before and after the training intervention, acute tissue biopsies after a standardized bout of exercise are obtained.

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.
40

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 Locations

  • Germany
      • Tübingen, Germany, 72076
        • Institute for Diabetes research and Metabolic Diseases of the Helmholtz Center Munich at the University of Tübingen

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 to 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • at least one of the following risk factors for type 2 diabetes:

    • overweight (BMI>27 kg/m2)
    • impaired fasting glucose and/ or glucose tolerance
    • former gestational diabetes
    • family history for type 2 diabetes (first-degree relative)
  • sedentary participant (< 2 exercise bouts/week)

Exclusion Criteria:

  • any kind of metal in or on the body
  • thermosensory or heightened sensitivity to heating
  • heightened sensitivity to loud noise or diseases of the ear
  • claustrophobia
  • Diabetes mellitus
  • current pregnancy or breastfeeding
  • cardiovascular diseases
  • surgery, < 3 months ago
  • participation in other clinical trials
  • acute illness/infection, < 4 weeks ago
  • severe mental illness
  • hemoglobin, women < 11g/dl, men < 13g/dl
  • potentially incompliant subjects and/or inability to absolve the exercise training
  • glucose influencing drugs
  • continuous analgetic drugs
  • use of anticoagulants

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: Prevention
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

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
exercise response with respect to changes in insulin sensitivity from baseline to post-intervention measurement
Time Frame: 11 weeks
insulin sensitivity is measured before and after the training intervention by a 5-point-75g-OGTT and calculated by ISI Matsuda
11 weeks

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
molecular mechanisms of non-response
Time Frame: 11 weeks
molecular mechanisms of non-response in insulin sensitivity in peripheral insulin target tissues (skeletal muscle, adipose tissue)
11 weeks
differences in the adaptation process to exercise in responders versus non-responders
Time Frame: 11 weeks
by assessing the acute inflammatory response in blood samples and tissue biopsies obtained directly after an acute bout of exercise, at the beginning, and the end of the exercise intervention
11 weeks
inflammatory response to exercise
Time Frame: 11 weeks
local (muscle and fat) versus systemic (blood) inflammatory response to exercise
11 weeks
changes in brain insulin sensitivity by exercise, and brain differences in responders vs. non-responders
Time Frame: 11 weeks
changes in brain insulin sensitivity, before and after the intervention
11 weeks
role of visceral fat mass in determining the non-response of insulin sensitivity to exercise
Time Frame: 11 weeks
measured by MRI
11 weeks
identification of serum biomarkers of non-response
Time Frame: 11 weeks
11 weeks

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.
University Hospital Tuebingen

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.
  • Study Director: Hans-Ulrich Häring, Prof., University Hospital Tuebingen

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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.
January 9, 2017

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.
December 31, 2018

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.
December 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).
May 9, 2017

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 11, 2017

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 12, 2017

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.
May 8, 2020

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.
May 6, 2020

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, 2020

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.
  • 446/2016BO2

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

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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