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Clinical Trial Summary

The purposes of this study are 1) to determine if the administration of different low doses of CBD (5 mg, 20 mg, 50 mg and 100 mg) result in detectable subjective pleasant drug effect compared to placebo and 2) to qualitatively explore whether low dose CBD is associated with effects that are not detected with the available research tools.


Clinical Trial Description

Cannabis contains over 100 cannabinoids, the two most prominent being Δ-9-tetrahydrocannabinol (THC) and cannabidiol (CBD). A growing body of evidence exists surrounding the effects of both THC and CBD, however, less is known about the specific effects of CBD concentrations alone. Most existing data regarding the effects of CBD come from studies where this compound is administered in high doses in a therapeutic context, and where the subject can be administered either CBD, THC or both together. These contexts are not representative of the current use by many consumers. Indeed, several available products contain CBD at much lower doses. The overall objective of this study is to evaluate the acute behavioral and biological effects of low doses of CBD (between 5-100mg) and placebo in occasional cannabis users. Potential outcomes not detected with usual assessment tools designed to evaluate THC-induced effects will also be explored. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT05320367
Study type Interventional
Source Centre hospitalier de l'Université de Montréal (CHUM)
Contact Pamela Lachance, PhD
Phone 514-890-8000
Email pamela.lachance-touchette.chum@ssss.gouv.qc.ca
Status Not yet recruiting
Phase Phase 1/Phase 2
Start date October 2024
Completion date November 2025

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