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Clinical Trial Summary

The purpose of this study is to investigate the processing of cannabis, and to investigate the occurrence of effects of cannabis on the cardiovascular system and the central nervous system; at higher levels of exposure.


Clinical Trial Description

In Europe, cannabis is the most illicit used drug, mainly for its psychoactive properties (becoming "high" or "stoned"). The active compound in cannabis is THC (tetrahydrocannabinol). In recent years the strength of cannabis (marihuana) available on the market in the Netherland has increased (especially "netherweed"). The THC-content has increased from on average 8.6% in 2000 to on average 20.3% in 2004. Experienced users adapt their habit of smoking to the strength of the cannabis sigaret (joint). However, there is also a group of people, mainly young ones, who intent to smoke the joint entirely, and can therefore be exposed to higher levels of THC. Information is lacking about the effects of cannabis at higher levels of exposure. Because of this, the Ministry of Health, Welfare, and Sports of the Netherlands ordered the investigators to perform a study to gain more insight in this issue. ;


Study Design

Allocation: Randomized, Endpoint Classification: Pharmacokinetics/Dynamics Study, Intervention Model: Crossover Assignment, Masking: Double-Blind, Primary Purpose: Prevention


Related Conditions & MeSH terms


NCT number NCT00225407
Study type Interventional
Source UMC Utrecht
Contact Tjeert T Mensinga, MD, PhD
Phone +31 30 2507340
Email tjeert.mensinga@rivm.nl
Status Recruiting
Phase Phase 1
Start date July 2005
Completion date December 2005

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