- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03954938
Behavioral Effects of Drugs (Inpatient): 38
December 3, 2021 updated by: William Stoops
Influence of Craving Manipulation on Cocaine Self-Administration
The specific aim of this project is to demonstrate that the decisional analysis/craving regulation aspects of CBT reduce cocaine self-administration in subjects with cocaine use disorder through diminished craving responses.
Thirty non-treatment seeking human subjects meeting diagnostic criteria for cocaine use disorder will complete an outpatient, crossover, placebo-controlled study consisting of 1 practice and 9 experimental sessions.
In each experimental session, the reinforcing effects of intranasal cocaine will be determined under one of three regulation of craving conditions that simulate CBT decisional analysis (i.e., negative instruction, positive instruction or a neutral "look" condition).
After sampling the dose of cocaine available in each session, subjects will complete the craving manipulation assigned to that session, they will then rate their craving and finally they will have the opportunity to earn the sampled dose in a progressive-ratio procedure.
We hypothesize that focusing on the negative effects of cocaine use will decrease craving and reduce cocaine self-administration relative to the positive and "look" conditions, and that craving will be positively correlated with self-administration outcomes.
Study Overview
Status
Terminated
Conditions
Intervention / Treatment
Study Type
Interventional
Enrollment (Actual)
2
Phase
- Early Phase 1
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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Kentucky
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Lexington, Kentucky, United States, 40507
- University of Kentucky Laboratory of Human Behavioral Pharmacology
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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
Yes
Genders Eligible for Study
All
Description
Inclusion Criteria:
- Current cocaine use
Exclusion Criteria:
- Abnormal screening outcome (e.g., ECG, blood chemistry result) that study physicians deem clinically significant
- Current or past histories of substance use disorder that are deemed by the study physicians to interfere with study completion
- History of serious physical disease, current physical disease, impaired cardiovascular functioning, chronic obstructive pulmonary disease, history of seizure or current or past histories of serious psychiatric disorder that in the opinion of the study physician would interfere with study participation will be excluded from participation
- Females not currently using effective birth control
- Contraindications to cocaine
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: Basic Science
- Allocation: Randomized
- Interventional Model: Crossover Assignment
- Masking: Triple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Sham Comparator: Neutral-Look
Subjects will be instructed to look at cocaine associated images and respond naturally.
|
Craving will be manipulated based on instructions about cocaine associated images shown to subjects.
The pharmacodynamic effects of cocaine will be determined based on the craving manipulation condition.
The pharmacodynamic effects of placebo will be determined based on the craving manipulation condition.
|
Experimental: Positive
Subjects will be instructed to look at cocaine associated images and anticipate the positive aspects of engaging with the items shown.
|
Craving will be manipulated based on instructions about cocaine associated images shown to subjects.
The pharmacodynamic effects of cocaine will be determined based on the craving manipulation condition.
The pharmacodynamic effects of placebo will be determined based on the craving manipulation condition.
|
Active Comparator: Negative
Subjects will be instructed to look at cocaine associated images and anticipate the negative aspects of engaging with the items shown.
|
Craving will be manipulated based on instructions about cocaine associated images shown to subjects.
The pharmacodynamic effects of cocaine will be determined based on the craving manipulation condition.
The pharmacodynamic effects of placebo will be determined based on the craving manipulation condition.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Number of Times Cocaine Was Selected
Time Frame: One test for each of the craving manipulations for placebo and each cocaine dose level over approximately two weeks of participation.
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The reinforcing effects of cocaine will be determined using a modified progressive ratio procedure (Stoops et al., 2010) in which subjects can make 5 choices for each available cocaine dose.
Reinforcing effects are measured for each cocaine dose during across the craving manipulation conditions.
|
One test for each of the craving manipulations for placebo and each cocaine dose level over approximately two weeks of participation.
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Cocaine Craving
Time Frame: Measured for each of the craving manipulations for placebo and each cocaine dose level over approximately two weeks of participation.
|
Cocaine craving will be assessed using a 10 point craving questionnaire that asks subjects to rate how much they are craving cocaine at that moment.
The minimum craving score is 0 (i.e., no craving), the maximum craving score is 10 (i.e., highest craving).
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Measured for each of the craving manipulations for placebo and each cocaine dose level over approximately two weeks of participation.
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
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 (Actual)
May 15, 2019
Primary Completion (Actual)
December 3, 2021
Study Completion (Actual)
December 3, 2021
Study Registration Dates
First Submitted
May 15, 2019
First Submitted That Met QC Criteria
May 15, 2019
First Posted (Actual)
May 17, 2019
Study Record Updates
Last Update Posted (Actual)
December 6, 2021
Last Update Submitted That Met QC Criteria
December 3, 2021
Last Verified
December 1, 2021
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Physiological Effects of Drugs
- Neurotransmitter Agents
- Molecular Mechanisms of Pharmacological Action
- Central Nervous System Depressants
- Peripheral Nervous System Agents
- Sensory System Agents
- Anesthetics
- Neurotransmitter Uptake Inhibitors
- Membrane Transport Modulators
- Dopamine Agents
- Anesthetics, Local
- Dopamine Uptake Inhibitors
- Vasoconstrictor Agents
- Cocaine
Other Study ID Numbers
- BED In 38
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
NO
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Yes
Studies a U.S. FDA-regulated device product
No
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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