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Effects of a Hemp Product on the Pharmacokinetics and Pharmacodynamics of Clopidogrel
RecruitingEarly phase 1Healthy volunteers welcome
Who can join
Ages 21 to 64 · All sexes · Healthy volunteers welcome
Full eligibility criteria
Inclusion Criteria: * 21-64 years old and healthy; * Confirmed by genetic test to be a CYP2C19 normal, rapid, or ultra-rapid metabolizer; * Not taking any medications (prescription and non-prescription, including clopidogrel) or dietary supplements/botanical products known to alter the pharmacokinetics of cannabis and/or clopidogrel; * Have taken hemp or cannabis (in any form) before and tolerated it well; * Willing to abstain from consuming dietary supplements/botanical products and citrus juices for the duration of the study; * Willing to abstain from cannabis/marijuana, hemp, THC- and/or CBD-containing products for several weeks; * Willing to abstain from consuming caffeinated beverages or other caffeine-containing products the evening before and morning of any inpatient day; * Willing to abstain from consuming alcoholic beverages for one day prior to any inpatient day; * Willing to use a secondary method of birth control that does not include the introduction or discontinuance of hormonal-based birth control (such as abstinence, copper IUD, or condoms), continuing for 1 week after completing the study; * Have the ability to and are willing to comply with the requirements of the study; * Geographically located within a 40-mile radius of Spokane and have the time to participate and; * Can read and speak English Exclusion Criteria: * Under the age of 21 or over the age of 64; * Any major illness; * Pregnant or nursing; * History of allergy or intolerance to cannabis or clopidogrel; * Taking concomitant medications, both prescription and non-prescription (including clopidogrel) or dietary supplements/botanical products known to alter the pharmacokinetics of cannabis and/or clopidogrel; * Never taken cannabis (in any form) before; * Presence of a condition or abnormality that, in the opinion of the Investigator, would compromise participant safety or the quality of the data; * Currently using or have recently used drugs or other illicit substances for recreational purposes; * Have used cannabis/marijuana, hemp, THC- and/or CBD-containing products within the last 4 weeks; * Have an out-of-range clinical laboratory value such that the study physician considers participation in the study a health risk, or; * Unable to read and speak English
About the study
The goal of this clinical trial is to determine how two different doses of cannabidiol (CBD), given as a hemp product, change the blood concentrations of the drug clopidogrel in the body. Results will be used to help design future studies and to assist healthcare providers in informing their patients about the safe use of CBD.
What is being tested
- Cannabidiol in the form of hemp (drug)
- Clopidogrel (drug)
Sponsor: Washington State University · Participants: 24 · Started: Jun 20, 2024
Contact the study team
- Mary F Paine, RPh, PhD · Phone: 509-358-7759
Official record on ClinicalTrials.gov — NCT06692933
Locations in the U.S.
| Washington | Washington State University College of Pharmacy and Pharmaceutical Sciences, Spokane |
From ClinicalTrials.gov, data retrieved Sep 30, 2026. Each study sets its own eligibility; the study team decides who can join.