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Alcohol DependencePhase 2SweetNalNCT01296646

Sweet Preference and Alcohol Craving

A Phase 2 study testing Naltrexone and Brenda Therapy Sessions in people with Alcohol Dependence and Alcohol Abuse, run by University of North Carolina, Chapel Hill 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

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). Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
Alcohol Dependence, Alcohol Abuse
What is being tested?
Naltrexone and Brenda Therapy Sessions
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
80 participants
Where
1 siteUnited States
Study dates
Jan 2010to Jun 2012
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • 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.

Who cannot join

  • 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.
Show all 11Show fewer
  • 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.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of North Carolina - Chapel Hill

    Chapel Hill, North Carolina, 27599

Other trials in United States

About this study

Official title: Sweet Preference and Alcohol Craving Predict Naltrexone Response in Alcoholism

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:

Read more

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.

Read the detailed description

Participants: There will be 130 alcohol-dependent individuals between 18 and 65 years of age recruited to participate in this randomized placebo-controlled clinical trial. Eighty alcohol-dependent individuals will be randomized into the study and we are allowing for 50 screen failures. Participation in this study will be an alternative to standard treatment. Subjects will be blindly assessed for SL/SDL status to yield 50% representation of each trait.

Procedures (methods): Subjects who meet general inclusion/exclusion criteria based on the screening interview will complete a sweet taste assessment. Results, along with craving score, will be given to the Investigational Drug Services for randomization purposes. The study is a double-blind, randomized, placebo-controlled clinical trial in which participants will receive 50 mg oral naltrexone or matching placebo for a 12-week period. In addition 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.

Being tested
Naltrexone, Brenda Therapy Sessions, Placebo
Keywords
Alcohol, Alcoholics, Substance Abuse, Alcohol Abuse, Alcohol Addiction
Medical subject headings
Alcoholism, Substance-Related Disorders

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • NaltrexoneDrug

    Also called Revia

    50 mg oral naltrexone once/day

  • Brenda Therapy SessionsBehavioural

    Also called Counselling, Therapy Sessions, Medical Management

    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.

  • PlaceboDrug

    Also called "Sugar pill"

    An inactive pill to control for non-pharmacological responses.

Study groups in NCT01296646
Study groupRoleWhat they receive
Arm 1Active comparatorSweet 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
Receives: Drug: Naltrexone; Behavioral: Brenda Therapy Sessions; Drug: Placebo
Arm 2Active comparatorSweet 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
Receives: Drug: Naltrexone; Behavioral: Brenda Therapy Sessions; Drug: Placebo
Arm 3Active comparatorSweet 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
Receives: Drug: Naltrexone; Behavioral: Brenda Therapy Sessions; Drug: Placebo
Arm 4Active comparatorSweet Disliker - Low Craver; half of this group will be on naltrexone the other half on placebo. All subjects will receive Brenda Therapy Sessions
Receives: Drug: Naltrexone; Behavioral: Brenda Therapy Sessions; Drug: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  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.

    Measured: 12 weeks

Secondary outcomes (1)
  1. Percent Days Abstinent

    Percentage of abstinence days as derived from the Timeline Follow-Back (TLFB) for the entire medication period.

    Measured: 12 weeks

Timeline

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

  1. First posted15 Feb 2011 (estimated)
  2. Study startJan 2010
  3. Primary completionJun 2012
  4. Study completionJun 2012

Resources

More details

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

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Factorial
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
80 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01296646
Sponsor's protocol ID
09-0939
Other IDs
1R21AA017503-01A2
Acronym
SweetNal
Status last verified
Oct 2013
First submitted
14 Feb 2011
Last updated
25 Nov 2013
Data monitoring committee
Yes

Publications

  • 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.

    PubMed 27627782

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Naltrexone and Brenda Therapy Sessions in people with Alcohol Dependence and Alcohol Abuse, run by University of North Carolina, Chapel Hill 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 7 inclusion and 11 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 25 Nov 2013. 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.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 25 Nov 2013). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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.

What does the primary outcome measure?

Percent Heavy Drinking Days (time frame: 12 weeks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01296646, which also lists 1 linked publication.

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 25 Nov 2013.

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