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Clinical Trial Summary

Cannabis is commonly used globally. It is associated with psychiatric problems, but the effects on the cardiovascular system are unclear. In this project, the investigators plan to study the effects of cannabis on the cardiovascular system. This will be done by using a non-invasive test to measure blood vessel function and by using blood samples to measure inflammation. As a control for this project, the investigators would like to test the blood vessel function and inflammation levels of participants who do not use cannabis. This study will provide important information on the long term cardiovascular effects of cannabis.


Clinical Trial Description

Cannabis is the most commonly used illicit drug in the world, but the investigators do not know the long-term effects on the cardiovascular system in humans. The investigators have data from cell culture and small animal studies that cannabis is toxic to the cardiovascular system. Recently legalized in Canada, the long-term effects of cannabis use on the cardiovascular system may not be apparent for several decades. The purpose of this study is to test the effect of cannabis use on the vascular system. Using a non-invasive test of vascular function, the investigators would like to assess the effects of cannabis on chronic cannabis users. The investigators would also like to test if cannabis use by smoking and/or vaping causes adverse cardiovascular effects acutely. Lastly, the investigators would like to test blood from chronic cannabis users for inflammatory cytokines, which could further support our hypothesis that cannabis damages the cardiovascular system via inflammation. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT05581368
Study type Observational
Source Lawson Health Research Institute
Contact Mark Chandy, MD, PhD
Phone 5196612111
Email mark.chandy@lhsc.on.ca
Status Recruiting
Phase
Start date December 1, 2023
Completion date December 2024

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