Placebo
Oral placebo
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The purpose of this study is to determine the pharmacokinetics and pharmacodynamics of oral delta-9-tetrahydrocannabinol (THC) and cannabidiol (CBD) and to evaluate detection of recently smoked THC in oral fluid.
Locally preserved from ClinicalTrials.govOpen ClinicalTrials.govlast source update 2026-09-08
What this record can show
This locally preserved record separates the registered protocol from source-reported registry results. Neither is a treatment recommendation.
Registry facts
This double-blind placebo controlled, within-subject study study will assess testing devices that can measure biochemical markers in oral fluid and neurocognitive-performance markers of recent THC or CBD use. Other pharmacodynamic effects of oral THC or CBD will be determined and the pharmacokinetics of THC, CBD, and respective metabolites will be assessed in whole blood.
Linked local records
Local links use governed condition terms or exact source-reported intervention names. They are navigation candidates, not efficacy claims.
Interventions
Oral placebo
Oral THC (20 mg)
Oral CBD (20 mg)
Oral THC (20 mg) + CBD (20 mg)
Eligibility
primary outcomes
Time frame: 6 hours
Average and peak subjective ratings of drug effects associated with abuse liability as measured using visual analogue scales (VAS; 1-100mm).
Time frame: 6 hours
Peak blood levels of THC, CBD, 11-OH-THC, and THCCOOH as measured in ng/ml
Time frame: 6 hours
Composite score on the DRUID App, a measure of behavioral task performance (range 0-100) where lower scores indicate better performance
Time frame: 6 hours
Liquid chromatography-tandem mass spectrometry
Publications
No exact PMID-linked public article is currently readable locally.