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AlcoholismPhase 4NCT00369408

Targeted Naltrexone for Problem Drinkers

A Phase 4 study testing Naltrexone in people with Alcoholism and Alcohol Drinking, run by UConn Health 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

The purpose of this study is to determine whether naltrexone, combined with brief coping skills therapy, is effective in the treatment of heavy drinking. Read more about this study

Who is it for?
Ages 18 to 70 years
Conditions the study is for
Alcoholism, Alcohol Drinking, Alcohol Dependence
What is being tested?
Naltrexone
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
163 participants
Where
1 siteUnited States
Study dates
Jun 2003to Mar 2008
Phase
Phase 4
Are there results?
None posted in the registry

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

Who may be able to join

  • Male and female outpatients 18-70 years of age.
  • Participants will have an average weekly ethanol consumption of >=24 standard drinks for men, or >=18 standard drinks for women (i.e., substantially in excess of non-hazardous drinking levels).
  • Participants will be able to read English at the eighth grade or higher level and show no evidence of significant cognitive impairment.
  • If a woman of child-bearing potential (i.e., who has not had a hysterectomy, bilateral oophorectomy, tubal ligation or who are less than two years postmenopausal), participant must be non-lactating, practicing a reliable method of birth control, and have a negative serum pregnancy test prior to initiation of treatment.
  • Participants will be willing to provide signed, informed consent to participate in the study (including a willingness to reduce drinking to non-hazardous levels).

Who cannot join

  • Participants who have a current, clinically significant physical disease or abnormality on the basis of medical history, physical examination, or routine laboratory evaluation, including total bilirubin elevations of >110% or ALT or AST elevations >300% the upper limit of normal or have a diagnosis of Hepatitis B or C infection or AIDS (given the potential for adverse effects of naltrexone on liver function).
  • Participants who have a serious psychiatric illness (i.e., schizophrenia, bipolar disorder, severe major depression, panic disorder, borderline personality states, organic mood or mental disorders, or substantial suicide or violence risk) on the basis of history or psychiatric examination.
  • Participants who have a current Diagnostic and Statistical Manual of Mental Disorders 4th ed (DSM-IV) diagnosis of drug dependence (other than nicotine dependence) or a lifetime DSM-IV diagnosis of opioid dependence.
  • Participants who have a current DSM-IV diagnosis of alcohol dependence that is clinically severe.
  • Participants who have used opioids or other psychoactive medications regularly in the month prior to study enrollment.
  • Participants who have a history of hypersensitivity to naltrexone.
  • Participants who are considered by the investigators to be an unsuitable candidate for receipt of an investigational drug.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Connecticut Health Center

    Farmington, Connecticut, 06030

Other trials in United States

About this study

The purpose of this study is to determine whether naltrexone, combined with brief coping skills therapy, is effective in the treatment of heavy drinking.

Read the detailed description

This is a 12-week, placebo-controlled trial of naltrexone (50 mg orally) in 163 problem drinkers. Problem drinkers are those individuals whose drinking puts them at risk of a variety of psychosocial and medical problems, including alcohol dependence, but who are not physically dependent on alcohol. They are estimated to comprise up to 20% of the general population. The study employed a factorial design in which the effects of medication (naltrexone vs. placebo), schedule of medication administration (i.e., daily vs. targeted), and the interaction of these factors on drinking behavior were examined. Targeted administration refers to the use of medication to cope with anticipated high-risk drinking situations.

The daily monitoring using interactive voice response technology of mood, desire to drink, perceived self-efficacy, and drinking behavior will make it possible to examine in depth the processes by which the study variables exert their effects. Daily monitoring was performed using automated telephone interviews, with in-person follow-up evaluations conducted at 3 and 6 months post-treatment to provide a measure of the durability of treatment effects.

A pharmacogenetic analysis based on preliminary evidence showing that a functional polymorphism in the gene encoding the mu-opioid receptor (OPRM1) affects response to naltrexone will serve to explore an important source of variation in the response to naltrexone treatment. Exploratory analyses involving other potential genetic moderators of the response to naltrexone, such as the gene encoding the delta opioid receptor (OPRD1), will also be conducted, as will the correlation of genotype data with other phenotypes.

Careful evaluation of the study hypotheses will provide important information on the efficacy and mechanism of the effects of targeted naltrexone in problem drinkers. This study will allow us to model effects across multiple levels of analysis in an effort to understand the psychopharmacological mechanisms underlying the therapeutic effects of naltrexone in problem drinkers and to apply novel genetic findings to understanding the pharmacogenetic mechanisms underlying the therapeutic effects of naltrexone in problem drinkers.

Being tested
Naltrexone, placebo
Keywords
Randomized Trial, Medication for Heavy Drinking, Naltrexone Treatment, Daily vs. Targeted Administration
Medical subject headings
Alcoholism, Alcohol Drinking

What participants receive

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

  • NaltrexoneDrug

    Also called ReVia

    naltrexone (50 mg orally) for 12-week treatment period; 3 and 6 months post-treatment follow-up

  • placeboDrug

    placebo for 12-week treatment period; 3 and 6 months post-treatment follow-up

Study groups in NCT00369408
Study groupRoleWhat they receive
1Experimentalnaltrexone (50 mg orally) for 12-week treatment period
Receives: Drug: Naltrexone
2Placebo comparatorplacebo for 12-week treatment period
Receives: Drug: placebo

What is being measured

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

  1. Drinking days and heavy drinking days

    Measured: 12-week trial; 3 and 6 months post-treatment follow-up

Secondary outcomes (2)
  1. Alcohol-related problems

    Measured: 12-week trial; 3 and 6 months post-treatment follow-up

  2. Biological measures of alcohol consumption (i.e., serum GGTP and CDT)

    Measured: 12-week trial; 3 and 6 months post-treatment follow-up

Timeline

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

  1. First posted29 Aug 2006 (estimated)
  2. Study startJun 2003
  3. Primary completionAug 2007
  4. Study completionMar 2008

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 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Triple blind
Who is masked
Participant, Care provider, Investigator
Enrolment
163 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00369408
Sponsor's protocol ID
03-107-2
Other IDs
NIAAA-KRA-P50-03510
Status last verified
Jun 2011
First submitted
24 Aug 2006
Last updated
20 Jun 2011
Results posted
No
Data monitoring committee
Yes

Publications

  • Kranzler HR, Tennen H, Armeli S, Chan G, Covault J, Arias A, Oncken C. Targeted naltrexone for problem drinkers. J Clin Psychopharmacol. 2009 Aug;29(4):350-7. doi: 10.1097/JCP.0b013e3181ac5213.

    PubMed 19593174

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Naltrexone in people with Alcoholism and Alcohol Drinking, run by UConn Health 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 5 inclusion and 7 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 20 Jun 2011. 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. Some participants in this study may receive a placebo. 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 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

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

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Drinking days and heavy drinking days (time frame: 12-week trial; 3 and 6 months post-treatment follow-up). 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 NCT00369408, 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 20 Jun 2011.

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