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Pharmacological Interaction Between Clonidine and Methylenedioxymethamphetamine (MDMA)

Substance-Related Disorders Clinical Trial

Official title:
Pharmacological Interaction Between Clonidine and 3,4-methylenedioxymethamphetamine (MDMA, Ecstasy)

Clinical Trial Summary

The purpose of this study is to determinate the effect of a pre-treatment with centrally acting alpha2-receptor agonist clonidine on the pharmacodynamics and pharmacokinetics of 3,4-methylenedioxymethamphetamine (MDMA, "Ecstasy"). The investigators hypothesize that clonidine will attenuate the subjective and cardiovascular response to MDMA.

Clinical Trial Description

3,4-methylenedioxymethamphetamine (MDMA, "ecstasy") is widely used by young people for its euphoric effects. MDMA releases serotonin (5-HT), norepinephrine (NE), and dopamine. It is unknown which of these monoamines mainly contributes to the subjective and physiological effects of MDMA in humans. Clonidine is a centrally acting alpha2-receptor agonist and sympatholytic which attenuates the release of NE from presynaptic nerve terminals and also lowers NE plasma concentration. To determine the role of NE in the response to MDMA in humans we test the effects of a clonidine pretreatment on the pharmacodynamics and pharmacokinetics of MDMA. We use a randomized double-blind placebo-controlled cross-over design with four experimental sessions. Clonidine (150 μg) or placebo will be administered 1 h before the administration of MDMA (125 mg) or placebo to 16 healthy volunteers. Subjective and cardiovascular responses will be repeatedly assessed throughout the experiments and plasma samples are collected for pharmacokinetics. We hypothesize that clonidine will significantly attenuate predominantly the cardiovascular response to MDMA. ;

Study Design

Allocation: Randomized, Endpoint Classification: Pharmacokinetics/Dynamics Study, Intervention Model: Crossover Assignment, Masking: Double Blind (Subject, Investigator), Primary Purpose: Basic Science

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT01136278
Study type Interventional
Source University Hospital, Basel, Switzerland
Contact
Status Completed
Phase Phase 1
Start date July 2010
Completion date December 2010
View Details
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