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Kappa-PET Imaging and Naltrexone in Alcohol Drinking Behaviors

Primary Purpose

Alcohol Drinking

Status
Completed
Phase
Phase 1
Locations
United States
Study Type
Interventional
Intervention
Naltrexone
Sponsored by
Yale University
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Alcohol Drinking focused on measuring Alcohol, Drinking, Drinkers, Alcohol Drinking, Naltrexone, Alcohol Dependence, Alcohol Abuse, Alcohol-Related Disorders, Ethanol, Alcoholism

Eligibility Criteria

21 Years - 50 Years (Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

  • Ages 21-50
  • Able to read English at 6th grade level or higher and to complete study evaluations
  • Regular alcohol drinker

Exclusion Criteria:

  • Individuals who are seeking alcohol treatment
  • Medical conditions that would contraindicate the use of study medication
  • Regular use of other substances

Sites / Locations

  • Sac, Cmhc

Arms of the Study

Arm 1

Arm Type

Experimental

Arm Label

Naltrexone

Arm Description

Outcomes

Primary Outcome Measures

Occupancy of KOR by NTX and Drinking
To determine the degree to which occupancy of KORs by a 100 mg/day dose of NTX mediates (influences the strength of) responsivity to NTX treatment in all heavy drinkers.
Relationship Between NTX Responsivity and Occupancy of KOR
To determine whether the relationship between NTX responsivity and occupancy of KOR is different in family history positive vs. family history negative heavy drinkers. Evaluations were done with a logistic regression which included years of drinking (a covariate), family history status, and occupancy of KOR. The logistic model calculated a probability of response, defined as a 50% or greater reduction in drinking after naltrexone, for every participant. Reported outcome is the area under the ROC produced by the model. The closer the value is to 100 percent probability, the better the model is at correctly classifying the observations.

Secondary Outcome Measures

Baseline KOR Differences
To determine if baseline levels of KOR differ between family history positive (FHP) and family history negative (FHN) heavy drinkers and to determine if baseline KOR level is related to either baseline drinking or responsivity to NTX.

Full Information

First Posted
June 19, 2012
Last Updated
August 8, 2022
Sponsor
Yale University
Collaborators
National Institute on Alcohol Abuse and Alcoholism (NIAAA)
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1. Study Identification

Unique Protocol Identification Number
NCT01625611
Brief Title
Kappa-PET Imaging and Naltrexone in Alcohol Drinking Behaviors
Official Title
Kappa-PET Imaging and Naltrexone in Alcohol Drinking Behaviors
Study Type
Interventional

2. Study Status

Record Verification Date
August 2022
Overall Recruitment Status
Completed
Study Start Date
February 2011 (undefined)
Primary Completion Date
June 30, 2021 (Actual)
Study Completion Date
June 30, 2021 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Yale University
Collaborators
National Institute on Alcohol Abuse and Alcoholism (NIAAA)

4. Oversight

Data Monitoring Committee
Yes

5. Study Description

Brief Summary
The primary purpose of the study is to increase our knowledge of receptor function in the brains of people who are heavy drinkers and taking naltrexone (NTX), a medication that has been approved for the treatment of alcohol dependence. Receptors are special molecules in the brain to which other molecules (neurotransmitters) attach during the normal every-day workings of the brain. Drugs can bind to those receptor molecules as well. Recent evidence suggests that kappa opioid receptors (KOR's) may play an important role in alcohol drinking behavior. This study will try to determine if naltrexone's ability to attach to these receptors is related to its effectiveness. We will use PET (positron emission tomography) for this study. PET is a type of imaging device found in nuclear medicine. It is used for tracking the presence of injected radioactive materials in the body.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Alcohol Drinking
Keywords
Alcohol, Drinking, Drinkers, Alcohol Drinking, Naltrexone, Alcohol Dependence, Alcohol Abuse, Alcohol-Related Disorders, Ethanol, Alcoholism

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 1
Interventional Study Model
Single Group Assignment
Masking
None (Open Label)
Allocation
N/A
Enrollment
59 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Naltrexone
Arm Type
Experimental
Intervention Type
Drug
Intervention Name(s)
Naltrexone
Other Intervention Name(s)
Revia
Intervention Description
Naltrexone 100 mg titrated over one week
Primary Outcome Measure Information:
Title
Occupancy of KOR by NTX and Drinking
Description
To determine the degree to which occupancy of KORs by a 100 mg/day dose of NTX mediates (influences the strength of) responsivity to NTX treatment in all heavy drinkers.
Time Frame
6-8 days after treatment with naltrexone
Title
Relationship Between NTX Responsivity and Occupancy of KOR
Description
To determine whether the relationship between NTX responsivity and occupancy of KOR is different in family history positive vs. family history negative heavy drinkers. Evaluations were done with a logistic regression which included years of drinking (a covariate), family history status, and occupancy of KOR. The logistic model calculated a probability of response, defined as a 50% or greater reduction in drinking after naltrexone, for every participant. Reported outcome is the area under the ROC produced by the model. The closer the value is to 100 percent probability, the better the model is at correctly classifying the observations.
Time Frame
6-8 days after treatment with naltrexone
Secondary Outcome Measure Information:
Title
Baseline KOR Differences
Description
To determine if baseline levels of KOR differ between family history positive (FHP) and family history negative (FHN) heavy drinkers and to determine if baseline KOR level is related to either baseline drinking or responsivity to NTX.
Time Frame
at baseline prior to treatment with naltrexone

10. Eligibility

Sex
All
Minimum Age & Unit of Time
21 Years
Maximum Age & Unit of Time
50 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: Ages 21-50 Able to read English at 6th grade level or higher and to complete study evaluations Regular alcohol drinker Exclusion Criteria: Individuals who are seeking alcohol treatment Medical conditions that would contraindicate the use of study medication Regular use of other substances
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Suchitra Krishnan-Sarin, Ph.D.
Organizational Affiliation
Yale University
Official's Role
Principal Investigator
Facility Information:
Facility Name
Sac, Cmhc
City
New Haven
State/Province
Connecticut
ZIP/Postal Code
06519
Country
United States

12. IPD Sharing Statement

Citations:
PubMed Identifier
31399255
Citation
de Laat B, Goldberg A, Shi J, Tetrault JM, Nabulsi N, Zheng MQ, Najafzadeh S, Gao H, Kapinos M, Ropchan J, O'Malley SS, Huang Y, Morris ED, Krishnan-Sarin S. The Kappa Opioid Receptor Is Associated With Naltrexone-Induced Reduction of Drinking and Craving. Biol Psychiatry. 2019 Dec 1;86(11):864-871. doi: 10.1016/j.biopsych.2019.05.021. Epub 2019 Jun 8.
Results Reference
derived

Learn more about this trial

Kappa-PET Imaging and Naltrexone in Alcohol Drinking Behaviors

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