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CompletedNCT01024543Updated Dec 2, 2009

Role of Angiotensin II in Insulin-induced Microvascular Activity

An interventional study of Angiotensin II and Phenylephrine in Insulin Sensitivity and Microcirculation, sponsored by Maastricht University Medical Center. Completed at 1 site in Netherlands. Open to participants aged 18 Years to 60 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2009-12-02.

Sponsored by Maastricht University Medical Center · Not applicable, Interventional, and Basic science

Phase
Not applicable
Study type
Interventional
Enrollment
18
Allocation
Randomized
Ages
18 Years to 60 Years
Sex
All
01

Study summary

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?

02

Conditions studied

  • Insulin Sensitivity
  • Microcirculation

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Keywords

  • Angiotensin II
03

In context

Insulin Resistance

1,960 studies on the registry are indexed under Insulin Resistance; 306 are open to participants now.

This study's enrollment of 18 is below the median of 40 across 1,536 interventional studies indexed under Insulin Resistance.

Browse Insulin Resistance studies →

Lead sponsor

Maastricht University Medical Center is the lead sponsor of 835 studies on the registry; 122 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 60 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

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

Exclusion criteria

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
05

Study design

Phase
Not applicable
Primary purpose
Basic science
Allocation
Randomized
Intervention model
Crossover assignment
Masking
Double (Participant, Investigator)
Enrollment
18 participants (actual)

Study arms

  • Sham comparator
    Placebo

    Placebo

    Drug: Placebo

  • Experimental
    Angiotensin II

    Angiotensin II

    Drug: Angiotensin II

  • Active comparator
    Phenylephrine

    Phenylephrine

    Drug: Phenylephrine

Interventions

  • DrugAngiotensin II

    Angiotensin II

  • DrugPhenylephrine

    Phenylephrine

  • DrugPlacebo
06

What researchers measure

Primary outcomes

  1. functional recruitment of capillaries in the skin

    Time frame: January 2009

Secondary outcomes

  1. perfused capillary density in the nailfold

    Time frame: January 2009

  2. Endothelium- (in)dependent vasodilatation of finger skin microcirculation

    Time frame: January 2006

  3. Insulin sensitivity

    Time frame: January 2009

07

Study locations

1 site
  • Maastricht University Medical Centre
    Maastricht, P.o. Box 5800, Netherlands, 6202 AZ, Netherlands
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Dec 2, 2009, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT01024543
Lead sponsor
Maastricht University Medical Center
First posted
Dec 2, 2009
Start date
Oct 2006
Primary completion
Nov 2009
Completion
Nov 2009
Last update
Dec 2, 2009

Study contacts

CDA Stehouwer, Prof
study chair · Maastricht University Medical Centre

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Dec 2009. You cannot join it, but the record below documents what was studied.

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