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Effects of Stimulant Dependence on Human Striatal Dopamine System - 15

2014-07-23 22:00:26 | BioPortfolio

Summary

The purpose of this study is to determine whether DAT availability, assessed by WIN binding, in the striatum is altered in cocaine or methamphetamine dependence. To determine whether DA synthesis capacity, assessed by FDOPA uptake, in the striatum is altered in Coc or Meth dependence. To determine whether the PET tracers, WIN or FDOPA, will differentiate Meth induced alterations from those induced by Coc use. To determine whether the PET characterization of striatal alterations observed at 3-5 days since last drug use persists at least 3 months after last drug use.

Description

4-5 Day inpatient study. Participant will have scanned pictures (MRI & PET scans) taken of their brain after being injected with a small amount of WIN, a radioactive substance. Participants give daily urine samples and fill out health related questionnaires. It is important to determine whether the alterations characterized within one week of last drug use persist over a longer time period. Based on results of the studies from aims 1 & 2, we will decide which of the 2 probes, WIN or FDOPA-PET is the more sensitive index of stimulant-dependency-induced changes.

Study Design

Masking: Open Label, Primary Purpose: Treatment

Conditions

Amphetamine-Related Disorders

Location

Friends Research Institute
Los Angeles
California
United States
90025

Status

Active, not recruiting

Source

National Institute on Drug Abuse (NIDA)

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-07-23T22:00:26-0400

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