Metabolomic Profiling of Novel Mediators of Vascular Function
NCT ID: NCT00762242
Last Updated: 2016-12-12
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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TERMINATED
48 participants
OBSERVATIONAL
2007-05-31
2018-02-28
Brief Summary
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Detailed Description
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Conditions
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Study Design
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CASE_CONTROL
PROSPECTIVE
Study Groups
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1
Blood sampling and brachial artery ultrasound
blood sampling and brachial artery ultrasound
Intravenous blood sampling will be performed before and 15 seconds, 30 seconds, 1,2,5,10,and 30 minutes following an ischemic stimulus (inflation of a blood pressure cuff to suprasystolic pressure for 5 minutes)
Brachial artery ultrasound imaging will be performed before and 1 minute after a 5 minute ischemic stimulus, to assess endothelium-dependent vasodilation of the brachial artery.
Following completion of blood sampling, an additional "resting" image of the brachial artery will be obtained. Sub-lingual nitroglycerin will be administered, and the artery will be imaged again after 3 minutes, to assess endothelium-independent vasodilation.
Interventions
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blood sampling and brachial artery ultrasound
Intravenous blood sampling will be performed before and 15 seconds, 30 seconds, 1,2,5,10,and 30 minutes following an ischemic stimulus (inflation of a blood pressure cuff to suprasystolic pressure for 5 minutes)
Brachial artery ultrasound imaging will be performed before and 1 minute after a 5 minute ischemic stimulus, to assess endothelium-dependent vasodilation of the brachial artery.
Following completion of blood sampling, an additional "resting" image of the brachial artery will be obtained. Sub-lingual nitroglycerin will be administered, and the artery will be imaged again after 3 minutes, to assess endothelium-independent vasodilation.
Eligibility Criteria
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Inclusion Criteria
* Type 2 diabetes mellitus
Exclusion Criteria
* Type 2 diabetics taking insulin, thiazolidinediones (rosiglitazone or pioglitazone), an amylin analog (Symlin \[pramlintide\]), or incretin mimetics (Byetta \[exenatide\])
* Pregnancy
* Uncontrolled hypertension, \> 180/100 mmHg
18 Years
ALL
Yes
Sponsors
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Brigham and Women's Hospital
OTHER
Responsible Party
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Joshua A. Beckman, MD
Associate Professor of Medicine, Harvard Medical School
Principal Investigators
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Joshua A. Beckman, M.D.
Role: PRINCIPAL_INVESTIGATOR
Brigham and Women's Hospital
Locations
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Brigham and Women's Hospital
Boston, Massachusetts, United States
Countries
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Other Identifiers
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2007P-000669
Identifier Type: -
Identifier Source: org_study_id
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