Sustained Release d-Amphetamine & Buprenorphine on Drug Seeking Behavior in Opioid & Cocaine Dependent Individuals

June 1, 2012 updated by: Mark Greenwald, PhD, Wayne State University

Reducing Cocaine/Heroin Abuse With SR-Amphetamine and Buprenorphine: Study 1

The purpose of this study is to determine whether maintenance on different oral doses of sustained release d-amphetamine (SR-AMP) combined with constant-dose sublingual buprenorphine (BUP) is safe and well tolerated and decreases self-administration of cocaine alone or combined with hydromorphone (HYD). Secondary aims are to determine whether SR-AMP attenuates the subjective and physiological effects of cocaine during drug sampling periods prior to choice opportunities.

Study Overview

Status

Completed

Conditions

Detailed Description

Heroin abusers also frequently abuse cocaine, and concurrent use of these drugs is associated with more severe drug dependence and associated psychiatric and medical problems, greater risk for HIV infection, worse drug abuse treatment outcome, and creates a public health burden. New methods and solutions are needed for this problem.

While human laboratory models exist to study choice of cocaine or opioids individually, studies have not examined choice of cocaine alone or cocaine/opioid combinations by heroin dependent individuals, nor have there been interventions to reduce such drug use. We recently developed a sensitive laboratory-based choice progressive ratio procedure to study drug-seeking behavior for opioids. This study will extend this procedure, in the form of drug combination vs. money choices, to obtain a novel human laboratory model of cocaine/opioid abuse. The purpose of this study is to determine whether maintenance on different doses of sustained release d-amphetamine (SR-AMP) combined with constant-dose buprenorphine (BUP) is safe and well tolerated and decreases self-administration of cocaine alone or combined with HYD. Secondary aims are to determine whether SR-AMP attenuates the subjective and physiological effects of cocaine during drug sampling periods prior to choice opportunities.

One goal of this new study is to develop a human laboratory model of polydrug abuse by allowing participants (who abuse both heroin and cocaine) to choose between drug combinations or money. The second goal of this study is to develop medication treatments to reduce cocaine use by opioid dependent individuals.

Participants in this observational study will take part in multiple trials in which they have the opportunity to choose between drug combinations (cocaine alone or combined with HYD; relative to HYD alone and dual placebo) or money. On the morning of each session, prior to the choice procedure, participants will receive a sample of the drug dose that can be chosen. Participants will be asked to attend to the effects produced by the drug combination because they will be able to choose this relative to money in the choice task in the afternoon session. During the choice procedure, participants will have 12 opportunities to choose either drug or money. Participants will use a computer to earn choices. Respiration rate, oxygen saturation, heart rate, and blood pressure will be monitored throughout the study. Self-report questionnaires will be completed at different times during the study. Participants will be maintained on a constant dose of BUP throughout the study, with a minimum 2-week lead before the experiment, and a fixed 3-week detoxification after study completion. During the experiment they will be maintained on different doses of SR-AMP and on a constant dose of BUP.

Study Type

Observational

Enrollment (Anticipated)

16

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Michigan
      • Detroit, Michigan, United States, 48207
        • Wayne State University

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 55 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Heroin dependent and Cocaine abuse or dependent research volunteers.

Description

Inclusion Criteria:

  • Opioid dependent and Cocaine abuse or dependence, as determined by structured clinical interview for DSM-IV (SCID) and Addiction Severity Index (ASI)
  • Positive urine test for opiates and cocaine
  • Willing to use an adequate form of contraception for the duration of the study
  • Reads and writes English

Exclusion Criteria:

  • Psychiatric illness, as determined by the DSM-IV criteria
  • History of, or current neurological disease, including structural abnormalities, seizures, infectious disease, history of other neurological diseases or head trauma.
  • History of cardiovascular disease, myocardial infarction, chest pain or palpations on exertion or drug use
  • Systolic blood pressure greater than 160 or less than 95 mmHg; Diastolic blood pressure >95 mmHg
  • Clinically abnormal ECG
  • Pulmonary disease, including asthma, obstructive pulmonary disease, cor pulmonale, tuberculosis
  • Systemic disease (e.g., endocrinopathies, liver or kidney failure, myxedema, hypothyroidism, Addison's disease, autoimmune disease)
  • Current alcohol or sedative drug dependence
  • Pregnant or breastfeeding
  • Currently receiving treatment for a Substance Abuse/Dependence Disorder or seeking treatment
  • Been in a research study within the last 30 days
  • Known phobia of injections

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Wayne State University

Collaborators

National Institute on Drug Abuse (NIDA)

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

January 1, 2007

Primary Completion (Actual)

January 1, 2010

Study Completion (Actual)

January 1, 2010

Study Registration Dates

First Submitted

January 30, 2007

First Submitted That Met QC Criteria

January 30, 2007

First Posted (Estimate)

February 1, 2007

Study Record Updates

Last Update Posted (Estimate)

June 5, 2012

Last Update Submitted That Met QC Criteria

June 1, 2012

Last Verified

June 1, 2012

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • NIDA - 022243
  • DPMCDA (Other Identifier: NIDA)
  • R01DA022243 (U.S. NIH Grant/Contract)

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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