NCT02147665|Completed
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Sponsor study identifier
interventional
42
1 country
1
Study Start
March 2013
Date type not reportedThis date has not been verified as actual or estimated.
Primary Completion
March 2016
Actual (reported)Study Completion
March 2016
Actual (reported)This is a pilot study on acute effects of Hookah smoking on the sympathetic neural control of the human cardiovascular system. Hookah smoking is known to transiently increase blood pressure and heart rate while decreasing heart rate variability suggesting - but not proving - sympathetic mediation. Here the investigators will directly measure the acute effects of Hookah smoking on sympathetic nerve activity with microneurography (intraneural microelectrodes) and quantify associated regional changes in vasomotor tone.
Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.
March 2016
Actual (reported)Click on a node to explore related trials.
Some registry-reported names shown below are not yet linked in this graph.
Dates and qualifiers reported by the registry. Estimated dates do not confirm that a milestone has occurred.
March 2013
Date type not reportedThis date has not been verified as actual or estimated.
April 30, 2014
Actual (reported)May 28, 2014
Actual (reported)March 2016
Actual (reported)March 2016
Actual (reported)Sympathetic nerve activity
Multi-unit recordings of sympathetic nerve activity will be obtained with single-use sterile tungsten microelectrodes inserted selectively into muscle or skin nerve fascicles of the peritoneal nerve.
At the initial study visit
Myocardial contrast echocardiography
At the initial study visit
Venous Occlusion Plethysmography
At the initial study visit
Healthy habitual Hookah smokers will undergo microneurography, myocardial contrast echocardiogram or venous occlusion plethysmography before and after Hookah smoking.
Subjects will smoke waterpipe in a controlled research environment.
Registry-reported names are shown in full. Names without a link have not yet been matched to a Syfrah profile.
Cedars-Sinai Medical Center
Los Angeles, California, 90048, United States
Ronald G Victor, MD
Cedars-Sinai Medical Center
42 participants (actual enrollment reported by the registry).
First Submitted
April 30, 2014
First Posted
May 28, 2014
Study Start
March 2013
Date type not reportedThis date has not been verified as actual or estimated.
The Impact of Waterpipe Tobacco Flavors on Waterpipe Smoking Intentions, Perceptions, Patterns, and Toxicant Exposure
Contact the study team to confirm eligibility.
Primary Completion
March 2016
Actual (reported)Study Completion
March 2016
Actual (reported)Last Updated
January 13, 2020
Record last verified: 2015-11
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Source: ClinicalTrials.gov.
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