Insulin Resistance and Vessel Function After Meals: Does Early Intervention Make a Difference?

November 29, 2018 updated by: Atheline Major-Pedersen

Insulin Resistance and Postprandial Endothelial Function: Does Early Intervention Make a Difference?

The purpose of this study is to determine whether attenuation/normalization of elevated blood sugar after meals ameliorates vessel wall (endothelial) function in individuals with insulin resistance.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Background:Insulin Resistance (IR) is accompanied by a high incidence and prevalence of cardiovascular disease. IR is present in individuals with pre-diabetes/ type 2 diabetes. Epidemiological data demonstrate a tight relationship between postprandial blood sugar, insulin resistance and cardiovascular disease (CVD). Endothelial dysfunction seems to be the very first sign of CVD.

Purpose: We propose to determine whether attenuation /normalization of post-prandial hyperglycaemia, through the administration of an oral hypoglycaemic agent of ultra rapid action (nateglinide), ameliorates endothelial function in the IR.

We extrapolate that a better endothelial function in the brachial artery reflects regression of atherosclerotic changes in the coronary system.

Method and Study Design: Prospective, open, parallel, group comparison study of 1 intervention group, 1 intervention control group and 1 disease control group. The intervention group and the intervention control group each consist of 30 individuals with IR. Individuals in the intervention group receive an individually adjusted dose of nateglinide 3 times daily during 12 weeks. The third group consists of 10 healthy, young individuals. All groups are followed during 3 months with an otherwise unchanged lifestyle. Endothelial function is measured with the Flow Mediated Dilation method before and after the intervention/observation period.

Study Type

Interventional

Enrollment (Actual)

70

Phase

  • Phase 4

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

  • Denmark
    • Copenhagen NV
      • Bispebjerg Bakke, Copenhagen, Copenhagen NV, Denmark, 2400
        • Endothelial laboratory, Cardiology clinic Y-research, H:S Bispebjerg Hospital

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

Ages Eligible for Study

25 years to 75 years (Adult, Older Adult)

Accepts Healthy Volunteers

N/A

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Insulin resistance, impaired glucose tolerance

Exclusion Criteria:

  • unstable chronic disease, acute disease

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: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Endothelial function

Secondary Outcome Measures

Outcome Measure
Metabolic function

Collaborators and Investigators

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

Sponsor

Atheline Major-Pedersen

Collaborators

Bayer
Novartis

Investigators

  • Study Chair: Christian Torp-Pedersen, MD, DMSc, Bispebjerg Hospital

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

June 1, 2003

Primary Completion (Actual)

March 1, 2006

Study Completion (Actual)

March 1, 2006

Study Registration Dates

First Submitted

November 28, 2005

First Submitted That Met QC Criteria

November 28, 2005

First Posted (Estimate)

November 29, 2005

Study Record Updates

Last Update Posted (Actual)

December 3, 2018

Last Update Submitted That Met QC Criteria

November 29, 2018

Last Verified

November 1, 2018

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 02-005/03

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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