- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01870882
Attention Training for Opioid-maintained Cocaine Users
March 31, 2020 updated by: Yale University
The purpose of this study is to determine the feasibility and preliminary efficacy of attention training using a portable electronic device for opioid-dependent cocaine-users stabilized on methadone.
Study Overview
Status
Completed
Intervention / Treatment
Detailed Description
The investigators propose to test the feasibility and preliminary efficacy of 5-times per week daily attentional retraining (AR) delivered via a portable electronic device (PED) in comparison with a control condition over the course of a 2-3 week training period.
Participants in this study will be cocaine and opioid-dependent individuals stabilized on methadone.
Both cocaine and opioids will be targeted in the AR procedure the investigators will test in this study.
The retraining or control condition, along with a series of assessments, will be delivered on the PED as part of a daily (Monday through Friday) appointment at which time participants will also obtain their daily methadone dose.
Assessments will cover substance use, craving and other issues.
In addition to completing the retraining or control procedure, participants will also be engaged in standard versions of attentional bias tasks (i.e., without retraining) periodically in order to gauge an effect of study condition on attentional bias over time.
Thus, the investigators will be able to track changes in attentional bias over time in a more detailed fashion than has been previously possible.
Following the 3 week training period, there will be another 3 weeks of treatment in which patients will continue to receive methadone and complete limited assessments without any AR or control procedures with the PED.
Study Type
Interventional
Enrollment (Actual)
8
Phase
- Phase 4
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
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Connecticut
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West Haven, Connecticut, United States, 06516
- Department of Veterans Affairs Hospital
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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
Description
Inclusion Criteria:
- Current opioid dependence as evidenced by 1) documentation of prior treatment for opioid dependence or signs of withdrawal, 2) self-reported history of opioid dependence for 12 consecutive months and, 3) a positive urine toxicology screen for opiates.
- Diagnosis of opioid dependence and cocaine dependence as well as laboratory confirmation of recent cocaine use in the form of positive urine toxicology during the month prior to study entry.
- For those who recently participated in a research study involving medications other than methadone, at least 2 weeks of washout period before enrollment. Those already taking methadone would continue with their current course while participating in this study.
- A history of cocaine use, a minimum of 1/2 gram and more than once per week during the preceding 30 days.
- Must be seeking treatment for opioid and cocaine use.
- For women of childbearing age, a negative pregnancy test at screening with agreement to use adequate contraception to prevent pregnancy and monthly pregnancy tests.
- The ability to speak, read, and write in English at an eight-grade literacy level.
Exclusion Criteria:
- Serious medical illnesses including hypertension, tachycardia, bradycardia, or other arrhythmias and major cardiovascular, cerebrovascular, renal, endocrine, or hepatic disorders;
- Serious psychiatric illness, history of psychosis, schizophrenia or bipolar type I disorder.
- Current major depression. Subjects with current depressive symptoms not meeting criteria will be included in the study, with the exception of those endorsing suicidal and homicidal thoughts, will be excluded even if full criteria for major depression are not met.
- Current diagnosis of alcohol or drug dependence other than opiates, cocaine, nicotine and cannabis.
- Current use of over-the-counter or prescription psychoactive drugs (antidepressant, anxiolytics, antipsychotics, mood stabilizers, psychostimulants) or drugs that would be expected to have major interactions with drugs to be tested, e.g., benzodiazepines, codeine, percocet, and other opiate drugs that will interact with methadone.
- Liver function tests (ALT or AST) greater than 3 times normal.
- Self-reported color blindness or (non-corrected) defective vision
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
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Triple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Active Comparator: Retraining
Using the PED, participants repeatedly complete a version of attentional bias task that orients their attention away from drug-related cues.
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Other Names:
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Sham Comparator: Control
Using the PED, participants repeatedly complete versions of the attentional bias task in which their attention is oriented toward and away from drug-related cues on an equal number of trials.
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Attentional bias for cocaine cues
Time Frame: over the course of the 3 week training period
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The tendency to respond more rapidly to a dot probe when the probe replaces a cocaine-related word than when a dot probe replaces a matched, non-drug control word.
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over the course of the 3 week training period
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Attentional bias for opioid cues
Time Frame: over the course of the 3 week training period
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The tendency to respond more rapidly to a dot probe when the probe replaces an opioid-related word than when a dot probe replaces a matched, non-drug control word.
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over the course of the 3 week training period
|
Retention of participants in treatment
Time Frame: at the end of the 3 week training period
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at the end of the 3 week training period
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Mean duration of sessions with the PED
Time Frame: the duration of the 3 week training period
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the duration of the 3 week training period
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Secondary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
self-reported craving for cocaine
Time Frame: assessed on a daily basis during the 3 week training period
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assessed on a daily basis during the 3 week training period
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Self-reported cocaine use
Time Frame: during the 3 week training period
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during the 3 week training period
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Self-reported opioid use
Time Frame: during the 3 week training period
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during the 3 week training period
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self-reported craving for opiates
Time Frame: assessed on a daily basis during the 3 week training period
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assessed on a daily basis during the 3 week training period
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Cocaine urine test results
Time Frame: during the 3 week training period
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during the 3 week training period
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opioid urine test results
Time Frame: during the 3 week training period
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during the 3 week training period
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Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Investigators
- Principal Investigator: Robert F Leeman, Ph.D., Yale University
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
June 1, 2013
Primary Completion (Actual)
December 1, 2014
Study Completion (Actual)
June 1, 2015
Study Registration Dates
First Submitted
June 3, 2013
First Submitted That Met QC Criteria
June 5, 2013
First Posted (Estimate)
June 6, 2013
Study Record Updates
Last Update Posted (Actual)
April 2, 2020
Last Update Submitted That Met QC Criteria
March 31, 2020
Last Verified
March 1, 2020
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- 1303011711
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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