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Progesterone for the Treatment of Cocaine Dependence - 1

2014-08-27 03:49:03 | BioPortfolio

Summary

Past research has demonstrated that cocaine dependent women experience less severe responses to cocaine during the luteal phase of the menstrual cycle, when estrogen and progesterone concentrations are high. The purpose of this study is to determine whether administered progesterone reduces subjective and physiological responses to cocaine in cocaine dependent individuals.

Description

Changes in ovarian hormones across the menstrual cycle impact responses to cocaine in women. Studies have shown that cocaine's effects are dampened during the luteal phase of the menstrual cycle, when estrogen and progesterone concentrations are high, relative to the other phases of the cycle, when concentrations of these hormones are relatively low. The purpose of this study is to determine whether progesterone reduces subjective and physiological responses to cocaine in cocaine dependent individuals. In addition, this study will help to advance the possibility of hormonal progesterone and pharmacologically related drugs as potential treatment components for cocaine abuse.

Participants will undergo two 4-day inpatient periods, totaling 8 days of treatment. For women, the inpatient periods will occur during two consecutive menstrual cycles; for men, they will occur during two consecutive months. On Day 1, participants will receive a first dose of either progesterone or placebo. On Day 2, participants will receive a second and third dose of study medication. They will also participate in an adaptation session, which will familiarize the participant with the smoking equipment that will be used the following day. On Day 3, participants will receive a fourth dose of medication 2 hours prior to a smoking lab session. Prior to beginning the smoking lab session, participants will be asked to rate their current cocaine craving, anxiety level, appetite, and premenstrual symptoms. Participants will then be given a sample of the cocaine dose for the given day. During the smoking lab session, participants will be asked additional cocaine craving questions at pre-determined intervals and will be given the option to trade in previously earned tokens for either money or a dose of cocaine. Following completion of the smoking lab session, participants will receive their fifth dose of medication.

Study Design

Allocation: Randomized, Control: Placebo Control, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double-Blind, Primary Purpose: Treatment

Conditions

Cocaine Abuse

Intervention

Progesterone

Location

University of Minnesota
Minneapolis
Minnesota
United States
55455

Status

Completed

Source

National Institute on Drug Abuse (NIDA)

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:49:03-0400

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An alkaloid ester extracted from the leaves of plants including coca. It is a local anesthetic and vasoconstrictor and is clinically used for that purpose, particularly in the eye, ear, nose, and throat. It also has powerful central nervous system effects similar to the amphetamines and is a drug of abuse. Cocaine, like amphetamines, acts by multiple mechanisms on brain catecholaminergic neurons; the mechanism of its reinforcing effects is thought to involve inhibition of dopamine uptake.

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The purified, alkaloidal, extra-potent form of cocaine. It is smoked (free-based), injected intravenously, and orally ingested. Use of crack results in alterations in function of the cardiovascular system, the autonomic nervous system, the central nervous system, and the gastrointestinal system. The slang term "crack" was derived from the crackling sound made upon igniting of this form of cocaine for smoking.

Steroidal compounds related to PROGESTERONE, the major mammalian progestational hormone. Progesterone congeners include important progesterone precursors in the biosynthetic pathways, metabolites, derivatives, and synthetic steroids with progestational activities.

SMOKING of COCAINE.

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