NCT01296646

Brief Summary

Purpose: The proposed 2-year investigation will be the first double-blind, placebo-controlled trial examining the hedonic response to sweet taste (HRST) as a phenotypic predictor of naltrexone (NTX) response in alcohol dependence. HRST yields two primary phenotypes-Sweet Likers (SL) and Sweet Dislikers (SDL). Based on preliminary findings, HRST will be examined in conjunction with craving for alcohol to assess whether the two factors together provide a more robust predictor of NTX response. The identification of methods to predict naltrexone response in alcohol dependence is an important goal for alcohol treatment research. Currently naltrexone is not being used nearly as much as it should be, in part because clinicians do not believe it is very effective. The development of tools that would identify which patients are more likely to have a robust response to naltrexone should lead to increased use of the medication. This could help many patients who are not now having the opportunity of trying naltrexone. There are two principal Specific Aims for the study: Specific Aim 1. To test the hypothesis that a combination of SL/SDL status and initial alcohol craving will predict % abstinent days (%ABST) during treatment with naltrexone. Specific Aim 2. To test whether a combination of SL/SDL status and initial alcohol craving predict % heavy drinking days (%HDD) during treatment with naltrexone.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
80

participants targeted

Target at P50-P75 for phase_2

Timeline
Completed

Started Jan 2010

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 1, 2010

Completed
1.1 years until next milestone

First Submitted

Initial submission to the registry

February 14, 2011

Completed
1 day until next milestone

First Posted

Study publicly available on registry

February 15, 2011

Completed
1.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2012

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2012

Completed
1.5 years until next milestone

Results Posted

Study results publicly available

November 25, 2013

Completed
Last Updated

November 25, 2013

Status Verified

October 1, 2013

Enrollment Period

2.4 years

First QC Date

February 14, 2011

Results QC Date

August 12, 2013

Last Update Submit

October 29, 2013

Conditions

Keywords

AlcoholAlcoholicsSubstance AbuseAlcohol AbuseAlcohol Addiction

Outcome Measures

Primary Outcomes (1)

  • Percent Heavy Drinking Days

    Percentage of heavy drinking days as derived from the Timeline Follow-back (TLFB) for the entire medication period. A heavy drinking day is defined as 5 or more standard drinks for a man and 4 or more standard drinks for a woman. A standard drink is 12-14 grams of ethanol or the amount contained in a 12 oz beer, 5 oz of wine or 1 1/2 oz of hard liquor.

    12 weeks

Secondary Outcomes (1)

  • Percent Days Abstinent

    12 weeks

Study Arms (4)

Arm 1

ACTIVE COMPARATOR

Sweet Liker, High Craver Half of this group will be on naltrexone the other half will be on placebo. All subjects will receive Brenda Therapy Sessions

Drug: NaltrexoneBehavioral: Brenda Therapy SessionsDrug: Placebo

Arm 2

ACTIVE COMPARATOR

Sweet Liker - Low Craver Half of this group will be on naltrexone the other half will be on placebo. All subjects will receive Brenda Therapy Sessions

Drug: NaltrexoneBehavioral: Brenda Therapy SessionsDrug: Placebo

Arm 3

ACTIVE COMPARATOR

Sweet Disliker - High Craver. Half of this group will be on naltrexone the other half will be on Placebo. All subjects will receive Brenda Therapy Sessions

Drug: NaltrexoneBehavioral: Brenda Therapy SessionsDrug: Placebo

Arm 4

ACTIVE COMPARATOR

Sweet Disliker - Low Craver; half of this group will be on naltrexone the other half on placebo. All subjects will receive Brenda Therapy Sessions

Drug: NaltrexoneBehavioral: Brenda Therapy SessionsDrug: Placebo

Interventions

50 mg oral naltrexone once/day

Also known as: Revia
Arm 1Arm 2Arm 3Arm 4

participants will meet with a trained therapist for nine 30-minute BRENDA therapy sessions Medical monitoring will also be conducted by study physicians and will consist of review of vital signs, concomitant medication use, and general inquiries into side effects.

Also known as: Counselling, Therapy Sessions, Medical Management
Arm 1Arm 2Arm 3Arm 4

An inactive pill to control for non-pharmacological responses.

Also known as: "Sugar pill"
Arm 1Arm 2Arm 3Arm 4

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Men and women between the ages of 18 and 65 meeting DSM-IV criteria for current alcohol dependence.
  • More than 14 drinks (women) or 21 drinks (men) per week including at least 2 heavy drinking days/week on average (men \> 5 drinks/day; women \> 4 drinks/day) during a consecutive 30-day period within the 90 days prior to screening.
  • Ability to understand and sign written informed consent.
  • Must have a 0.0 gms/dL breathalyzer reading on the day of screening and 0.0 gms/dL on the day of randomization.
  • Must be willing to refrain from drinking for three days prior to randomization day.
  • Express a desire to achieve abstinence or to greatly reduce alcohol consumption.
  • Must have a stable residence and be able to identify an individual who could locate subject if needed.

You may not qualify if:

  • Clinically significant medical disease that might interfere with the evaluation of the study medication or present a safety concern (e.g., cirrhosis, unstable hypertension, seizure disorder, use of opiate medication).
  • Clinically significant psychiatric illness including: any psychotic disorder, bipolar disorder, severe depression, or suicidal ideation.
  • Other substance abuse or dependence disorder other than nicotine or alcohol.
  • Concurrent use of any psychotropic medication including antidepressants, mood stabilizers, antipsychotics, anxiolytics, stimulants, or hypnotics with the exception of stable doses of antidepressants for one month.
  • History of complicated alcohol withdrawal, i.e. withdrawal seizure or delirium tremens.
  • AST, or ALT \> 3 times Upper Limit of Normal (ULN) or bilirubin \> ULN.
  • Positive urine toxicology screen with the exception of cannabis. Individuals with positive cannabis screens will be excluded only if they have a history of cannabis dependence.
  • Pregnant women and women of childbearing potential who do not practice a medically acceptable form of birth control (oral or depot contraceptive, or barrier methods such as diaphragm or condom with spermicidal) and women who are breast feeding.
  • Individuals requiring inpatient treatment or more intense outpatient treatment for their alcohol dependence.
  • Participation in any clinical trial within the past 60 days.
  • Court-mandated participation in alcohol treatment or pending incarceration.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of North Carolina - Chapel Hill

Chapel Hill, North Carolina, 27599, United States

Location

Related Publications (1)

  • Garbutt JC, Kampov-Polevoy AB, Kalka-Juhl LS, Gallop RJ. Association of the Sweet-Liking Phenotype and Craving for Alcohol With the Response to Naltrexone Treatment in Alcohol Dependence: A Randomized Clinical Trial. JAMA Psychiatry. 2016 Oct 1;73(10):1056-1063. doi: 10.1001/jamapsychiatry.2016.2157.

MeSH Terms

Conditions

AlcoholismSubstance-Related Disorders

Interventions

NaltrexoneCounselingPractice Management, MedicalSugars

Condition Hierarchy (Ancestors)

Alcohol-Related DisordersChemically-Induced DisordersMental Disorders

Intervention Hierarchy (Ancestors)

NaloxoneMorphinansOpiate AlkaloidsAlkaloidsHeterocyclic CompoundsHeterocyclic Compounds, Bridged-RingHeterocyclic Compounds, 4 or More RingsHeterocyclic Compounds, Fused-RingPhenanthrenesPolycyclic Aromatic HydrocarbonsPolycyclic CompoundsMental Health ServicesBehavioral Disciplines and ActivitiesCommunity Health ServicesHealth ServicesHealth Care Facilities Workforce and ServicesPractice ManagementProfessional PracticeOrganization and AdministrationHealth Services AdministrationCarbohydrates

Results Point of Contact

Title
James C. Garbutt, M.D., Professor of Psychiatry
Organization
University of North Carolina at Chapel Hill

Study Officials

  • James C Garbutt, M.D.

    University of North Carolina, Chapel Hill

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
FACTORIAL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor of Psychiatry

Study Record Dates

First Submitted

February 14, 2011

First Posted

February 15, 2011

Study Start

January 1, 2010

Primary Completion

June 1, 2012

Study Completion

June 1, 2012

Last Updated

November 25, 2013

Results First Posted

November 25, 2013

Record last verified: 2013-10

Locations