Role of Angiotensin II in Insulin-induced Microvascular Activity

December 1, 2009 updated by: Maastricht University Medical Center
In this study we hypothesize infusion of Angiotensin II improves the insulin-induced microvascular dilatation and therefore insulin-mediated glucose uptake. Objectives: Does infusion of Angiotensin II increase insulin-mediated glucose uptake via enhanced insulin-mediated microvascular function in healthy subjects?

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

18

Phase

  • 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

  • Netherlands
      • Maastricht, P.o. Box 5800, Netherlands, Netherlands, 6202 AZ
        • Maastricht University Medical Centre

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

18 years to 60 years (Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

1.18-60 years 2.Caucasian 3.Blood pressure <140/90 mmHg.

Exclusion Criteria:

  1. Obesity (BMI>27kg/m2)
  2. Cardiovascular disease (stroke, coronary artery disease, peripheral vascular disease, heart failure)
  3. Impaired glucose tolerance or diabetes mellitus according to the criteria of the ADA
  4. Smoking
  5. Alcohol use >4U/day
  6. Use of medication (antihypertensive drugs, lipid lowering drugs, corticosteroids, NNSAIDs)
  7. Pregnancy
  8. Wearing contact lenses

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: Crossover Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Sham Comparator: Placebo
Drug: Placebo
Experimental: Angiotensin II
Drug: Angiotensin II
Angiotensin II
Active Comparator: Phenylephrine
Drug: Phenylephrine
Phenylephrine

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
functional recruitment of capillaries in the skin
Time Frame: January 2009
January 2009

Secondary Outcome Measures

Outcome Measure
Time Frame
perfused capillary density in the nailfold
Time Frame: January 2009
January 2009
Endothelium- (in)dependent vasodilatation of finger skin microcirculation
Time Frame: January 2006
January 2006
Insulin sensitivity
Time Frame: January 2009
January 2009

Collaborators and Investigators

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

Sponsor

Maastricht University Medical Center

Investigators

  • Study Chair: CDA Stehouwer, Prof, Maastricht University Medical Centre

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

October 1, 2006

Primary Completion (Actual)

November 1, 2009

Study Completion

November 1, 2009

Study Registration Dates

First Submitted

November 30, 2009

First Submitted That Met QC Criteria

December 1, 2009

First Posted (Estimate)

December 2, 2009

Study Record Updates

Last Update Posted (Estimate)

December 2, 2009

Last Update Submitted That Met QC Criteria

December 1, 2009

Last Verified

December 1, 2009

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • MEC 06-2-074

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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