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Heroin DependenceNCT00429767

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

An observational study of Heroin Dependence and Opioid-Related Disorders, run by Wayne State University at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

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). Read more about this study

Who is it for?
Ages 18 to 55 years
How many people
16 participants
Where
1 siteUnited States
Study dates
Jan 2007to Jan 2010
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 55 years
  • All sexes
  • No healthy volunteers
  • Adult

Study population: Heroin dependent and Cocaine abuse or dependent research volunteers.

Who may be able to join

  • 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

Who cannot join

  • 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
Show all 12Show fewer
  • 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

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Wayne State University

    Detroit, Michigan, 48207

Other trials in United States

About this study

Official title: 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.

Read the 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.

Keywords
Opioid, Cocaine, Drug Self Administration
Medical subject headings
Heroin Dependence, Opioid-Related Disorders, Cocaine-Related Disorders

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted1 Feb 2007 (estimated)
  2. Study startJan 2007
  3. Primary completionJan 2010
  4. Study completionJan 2010

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case only
Time perspective
Prospective
Enrolment
16 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00429767
Sponsor's protocol ID
NIDA - 022243
Other IDs
R01DA022243, DPMCDA
Status last verified
Jun 2012
First submitted
30 Jan 2007
Last updated
5 Jun 2012
Results posted
No
Data monitoring committee
Yes

Publications

  • Stoltman JJ, Woodcock EA, Lister JJ, Greenwald MK, Lundahl LH. Exploration of the telescoping effect among not-in-treatment, intensive heroin-using research volunteers. Drug Alcohol Depend. 2015 Mar 1;148:217-20. doi: 10.1016/j.drugalcdep.2015.01.010. Epub 2015 Jan 19.

    PubMed 25630964
  • Greenwald MK, Lundahl LH, Steinmiller CL. Sustained release d-amphetamine reduces cocaine but not 'speedball'-seeking in buprenorphine-maintained volunteers: a test of dual-agonist pharmacotherapy for cocaine/heroin polydrug abusers. Neuropsychopharmacology. 2010 Dec;35(13):2624-37. doi: 10.1038/npp.2010.175. Epub 2010 Sep 29.

    PubMed 20881947

Questions about this trial

What is this clinical trial studying?

An observational study of Heroin Dependence and Opioid-Related Disorders, run by Wayne State University at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 12 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 5 Jun 2012. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00429767, which also lists 2 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 5 Jun 2012.

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