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Trial · Interventional

CompletedNot applicableResults postedRegistry data

Effects of Agonists of Glucagon Like Peptide - 1 Receptors (GLP-1R) on Arterial Stiffness, Endothelial Glycocalyx and Coronary Flow Reserve in Patients With Coronary Artery Disease and Patients With Diabetes Mellitus

Overview

Status
Completed
Phase
Not applicable
Enrollment
60 participants (actual)
Sponsor
University of Athens · Other
Design
Randomized · Single masking
Countries
1 country

Greece

Start
Nov 2015
Primary completion
Jun 2017
Completion
Dec 2017
First posted
5 Jan 2017 (estimated)
Last update posted
5 Mar 2021
Conditions
Type 2 Diabetes Mellitus · Coronary Artery Disease

Timeline

1 trial · 1 completed · 1 with posted results

  • Completed
  • Ongoing
  • Not yet recruiting
  • Stopped
  • Estimated dates (est.)
  • Results posted
2015201620172018
  1. N/A

    Effects of Agonists of Glucagon Like Peptide - 1 Receptors (GLP-1R) on Arterial Stiffness, Endothelial Glycocalyx and Coronary Flow Reserve in Patients With Coronary Artery Disease and Patients With Diabetes Mellitus

    NCT03010683

    Nov 2015 to Dec 2017

Registry summary

Text and fields below are the sponsor's entries at ClinicalTrials.gov, shown as posted.

Arterial stiffness is associated with increased risk for cardiovascular disease. Moreover, the integrity of endothelial glycocalyx plays a vital role in vascular permeability, inflammation and elasticity. Agonists of Glucagon like peptide - 1 receptors (GLP-1R) used in the treatment of type 2 diabetes mellitus (T2DM). This category includes exenatide and liraglutide. These drugs lower glucose levels by inhibiting the secretion of glucagon, promoting the release of insulin in response to hyperglycemia, slowing gastric emptying, and augmenting satiety. Clinical studies have shown that GLP-1R agonists have beneficial effects on cardiovascular function in both diabetic patients and healthy subjects. The purpose of this study is to investigate in patients with T2DM without coronary artery disease (CAD), patients with T2DM and CAD and obese patients with abnormal oral glucose tolerance test (OGTT), changes in arterial stiffness, endothelial glycocalyx thickness and coronary reserve flow (CFR) after treatment with metformin or agonist GLP-1R.

Interventions

  • LiraglutideDrug
  • MetforminDrug

Arms2

  • Active comparator

    liraglutide

  • Active comparator

    Metformin

Primary outcomes4

Outcomes the sponsor listed as primary.

  1. Differences in Pulse Wave Velocity at Baseline and 3, 6 and 12 Months After Treatment With Metformin or Agonist GLP-1R.

    Time frame · Baseline, 3 months, 6 months and 12 months

    Registry description

    Differences in carotid-femoral pulse wave velocity (PWV, m/sec) using tonometry at baseline and 3, 6 and 12 months after treatment with metformin or agonist GLP-1R.

  2. Differences in Augmentation Index at Baseline and 3, 6 and 12 Months After Treatment With Metformin or Agonist GLP-1R.

    Time frame · Baseline, 3 months, 6 months, and 12 months.

    Registry description

    Differences in augmentation index (AI, %) using oscillometry at baseline and 3, 6 and 12 months after treatment with metformin or agonist GLP-1R.

  3. Differences in Coronary Flow Reserve at Baseline and 3, 6 and 12 Months After Treatment With Metformin or Agonist GLP-1R.

    Time frame · Baseline, 3 months, 6 months, and 12 months.

    Registry description

    Differences in coronary flow reserve (CFR) using Doppler echocardiography at baseline and 3, 6 and 12 months after treatment with metformin or agonist GLP-1R.

  4. Differences in Endothelial Glycocalyx Thickness at Baseline and 3, 6 and 12 Months After Treatment With Metformin or Agonist GLP-1R.

    Time frame · Baseline, 3 months, 6 months, and 12 months.

    Registry description

    Differences in endothelial glycocalyx thickness as assessed by perfused boundary region (PBR, micrometers) of the sublingual arterial microvessels at baseline and 3, 6 and 12 months after treatment with metformin or agonist GLP-1R. High PBR values represent reduced glycocalyx thickness.

Secondary outcomes(2)
  1. Endothelial Glycocalyx and Pulse Wave Velocity.

    Time frame · Baseline, 3 months, 6 months, and 12 months.

    Registry description

    Association of endothelial glycocalyx thickness as assessed by perfused boundary region (PBR, micrometers) of the sublingual arterial microvessels with pulse wave velocity (PWV, m/sec) at baseline and 3, 6 and 12 months after treatment with metformin or agonist GLP-1R.

  2. Endothelial Glycocalyx and Coronary Flow Reserve.

    Time frame · Baseline, 3 months, 6 months, and 12 months.

    Registry description

    Association of endothelial glycocalyx thickness as assessed by perfused boundary region (PBR, micrometers) of the sublingual arterial microvessels with coronary flow reserve (CFR) using Doppler echocardiography at baseline and 3, 6 and 12 months after treatment with metformin or agonist GLP-1R.

Posted results

Values are shown as posted at ClinicalTrials.gov, with their units. PepBank has not converted, pooled or compared them.

Primary outcome results

Primary outcomeMean· Baseline, 3 months, 6 months and 12 months

Differences in Pulse Wave Velocity at Baseline and 3, 6 and 12 Months After Treatment With Metformin or Agonist GLP-1R.

GroupValue (m/s)Spread
Liraglutide11.82.5
Metformin11.23
Primary outcomeMean· Baseline, 3 months, 6 months, and 12 months.

Differences in Augmentation Index at Baseline and 3, 6 and 12 Months After Treatment With Metformin or Agonist GLP-1R.

GroupValue (percentage of the central pulse pressure)
Liraglutide18
Metformin14
Primary outcome· Baseline, 3 months, 6 months, and 12 months.

Differences in Coronary Flow Reserve at Baseline and 3, 6 and 12 Months After Treatment With Metformin or Agonist GLP-1R.

GroupValue
Liraglutidenot posted
Metforminnot posted
Primary outcomeMean· Baseline, 3 months, 6 months, and 12 months.

Differences in Endothelial Glycocalyx Thickness at Baseline and 3, 6 and 12 Months After Treatment With Metformin or Agonist GLP-1R.

GroupValue (micrometers)Spread
Liraglutide2.10.29
Metformin2.130.3
Secondary and other outcome results(2)
Secondary outcomeNumber· Baseline, 3 months, 6 months, and 12 months.

Endothelial Glycocalyx and Pulse Wave Velocity.

GroupValue (Pearson correlation coefficient (r))
Liraglutide0.39
Metformin0.35
Secondary outcome· Baseline, 3 months, 6 months, and 12 months.

Endothelial Glycocalyx and Coronary Flow Reserve.

GroupValue
Liraglutidenot posted
Metforminnot posted

Adverse events, as posted

Adverse events as posted: participants affected out of participants at risk, by group
GroupDeathsSerious eventsOther events
LiraglutideStimulation of glucagon like peptide-1 receptor by liraglutide (Victoza) 1.8 mg once daily as a subcutaneous injection0 / 300 / 300 / 30
MetforminAntidiabetic drug - biguanide class (Glucophage) 1000 mg twice daily per os0 / 300 / 300 / 30

Each cell reads participants affected / participants at risk, as the registry posted them.

Registry data comes from ClinicalTrials.gov. Study results come from studies, not from the registry. How PepBank works

Studies1

Studies that cite this trial.

Studies with results

1 study on this page

Indexing hint: Randomized controlled trial · 2018

9 results

Effects of 6-month treatment with the glucagon like peptide-1 analogue liraglutide on arterial stiffness, left ventricular myocardial deformation and oxidative stress in subjects with newly diagnosed type 2 diabetes.

Lambadiari et al. 2018Cardiovascular diabetologycited by 127

PMID 29310645PMC5759220DOI 10.1186/s12933-017-0646-zPUB-29310645

CC BY9 results

Other registry references

References listed at the registry that are not in PepBank. They link to PubMed.

  • DerivedGnesin F, Thuesen ACB, Kahler LKA, Madsbad S, Hemmingsen B. Metformin monotherapy for adults with type 2 diabetes mellitus. Cochrane Database Syst Rev. 2020 Jun 5;6(6):CD012906. doi: 10.1002/14651858.CD012906.pub2. PMID 32501595

Eligibility

Who could join, as posted.

Sex
All
Age
from 18 Years up to 70 Years
Healthy volunteers
Accepted
Inclusion and exclusion criteria, as posted
Inclusion Criteria: * Patients with type 2 diabetes mellitus (T2DM) without coronary artery disease (CAD) * Patients with T2DM and CAD. * Obese patients (BMI \>30 Kg/m²) with abnormal oral glucose tolerance test (OGTT) Exclusion Criteria: * valvular heart disease * congestive heart failure * peripheral vascular disease * liver or kidney failure * history of alcohol or drug abuse

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