Type 1 Diabetes, Endothelin, and Skeletal Muscle Mitochondrial Dysfunction: The Role of Sirtuin-1 (T-St1M)

January 27, 2025 updated by: Ryan Harris, Augusta University
The proposed study is designed to test the hypothesis that treatment of resveratrol for 12 weeks will improve both endothelin-B receptor (aim 1) and skeletal muscle mitochondrial function (aim 2) in people with type 1 diabetes.

Study Overview

Status

Status

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

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

Preliminary data from the investigators' laboratory demonstrate a negative relationship between hemoglobin A1c (HbA1c) and ETBR function, supporting ETBR may be dysfunctional in the presence of T1D. Using near infrared spectroscopy (NIRS) to non-invasively assess muscle function, the investigators have also observed reduced skeletal muscle mitochondrial function in people with T1D compared to healthy controls. In addition, reduced circulating Sirt1 is associated with both ETBR and skeletal muscle mitochondrial dysfunction in the general population. For the current application, the investigators propose to utilize intradermal microdialysis and NIRS as unique, novel, and minimally invasive methods to investigate ETBR and skeletal muscle mitochondrial function, respectively, in people with T1D. Accordingly, the central hypothesis is that increasing circulating Sirt1 with oral supplementation of resveratrol will improve both ETBR function and mitochondrial skeletal muscle function, reducing overall CVD risk (Figure 1). The investigators will test this hypothesis with the following specific aims:

Aim 1: To test the hypothesis that an increase in Sirt1 will improve ETBR function in people with T1D. The investigators will evaluate ETBR function and circulating Sirt1 at baseline and after a 12-week treatment of resveratrol or placebo. Based on preliminary data, the investigators predict that people with T1D will have ETBR dysfunction compared to controls. In addition, the investigators predict that increasing Sirt1 following resveratrol treatment will improve ETBR function, whereas no change will occur with placebo.

Aim 2: To test the hypothesis that an increase in Sirt1 will improve skeletal muscle mitochondrial function and lower HbA1c in people with T1D. A non-invasive assessment of skeletal muscle function will be performed on people with T1D before and after 12-weeks of treatment with resveratrol or placebo. Compared to controls, the investigators predict that people with T1D will have skeletal muscle dysfunction. Following 12 weeks of resveratrol, the investigators predict that the increase in circulating Sirt1 will improve skeletal muscle function. Additionally, the investigators predict the improved skeletal muscle function will contribute to a subsequent decrease in HbA1c in people with T1D.

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 (Estimated)

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.
24

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.
  • Early Phase 1

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
    • Georgia
      • Augusta, Georgia, United States, 30912
        • Recruiting
        • Augusta University/Georgia Prevention Institute/ Laboratory of Integrative and Exercise Physiology
        • Contact:
        • 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

Description

Inclusion Criteria:

  • Men and premenopausal women
  • All races
  • Clinical diagnosis of insulin-dependent type 1 diabetes (patients only)

Exclusion Criteria:

  • Clinical diagnosis of hepatic, cardiovascular, or renal disease
  • Uncontrolled diabetes (HbA1C >12%)
  • Diabetic complications (i.e. neuropathy)
  • Uncontrolled hypertension (>140/90 mm Hg on therapy)
  • Pregnancy
  • Use of vasoactive medications

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: Treatment
  • 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.
Experimental: Individuals with type 1 diabetes
Individuals with type 1 diabetes will be randomly assigned to 1 of the 2 interventions (Resveratrol or placebo)
Drug: Resveratrol
500 mg of oral trans-resveratrol twice daily (in the morning and evening) for 12-weeks
Other: Placebo
placebo for 12 weeks
No Intervention: Healthy Controls
Healthy individuals who participate will receive no intervention and serve as controls.

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 AUC for ET-1 + BQ-123
Time Frame: Measure taken at Baseline and post 12 weeks
Change in Area Under the Curve (AUC) for Cutaneous Vascular Conductance (CVC) in response to co-perfusion of ET-1 + BQ-123 at 12 weeks. Measured using intradermal microdialysis technique in conjunction with Laser Speckle Contrast Imaging (Moor FLPI-2) and beat-by-beat blood pressure monitoring (Finapres NOVA).
Measure taken at Baseline and post 12 weeks
Skeletal Muscle Mitochondrial Function
Time Frame: Measure taken at Baseline and post 12 weeks
Change in Skeletal Muscle Mitochondrial Function at 12 weeks. Measured using Near Infrared Spectroscopy (NIRS). Values are an index of phosphocreatine recovery expressed as a rate constant (min-1)
Measure taken at Baseline and post 12 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
Change in Percentage Flow-Mediated Dilation (FMD)
Time Frame: Measure taken at Baseline and post 12 weeks
Change in Percentage FMD at 12 weeks. Measured via ultrasound in conjunction with edge detection software. Expressed as %
Measure taken at Baseline and post 12 weeks
Change in Pulse Wave Velocity (PWV)
Time Frame: Measure taken at Baseline and post 12 weeks
Change in PWV at 12 weeks. Measured by Shygmocor Xcel in m/s.
Measure taken at Baseline and post 12 weeks
Change in Post Occlusive Reactive Hyperemia (PORH)
Time Frame: Baseline and post 12 weeks
Change in PORH at 12 weeks. Measured by Laser Speckle Contrast Imager (Moor FLPI-2) in perfusion units (PU). Represents the maximal dilatory response in the microcirculation post 5 minute occlusion.
Baseline and post 12 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.
Augusta 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 (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.
October 14, 2020

Primary Completion (Estimated)

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.
January 1, 2027

Study Completion (Estimated)

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.
July 1, 2027

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).
June 11, 2020

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.
June 23, 2020

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.
June 26, 2020

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.
March 25, 2025

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 27, 2025

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, 2025

More Information

Terms related to this study

Keywords

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.
  • 1595933

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

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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