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Alcohol DependencePhase 4NCT00920829

Genetic and Brain Mechanisms of Naltrexone's Treatment Efficacy for Alcoholism

A Phase 4 study testing Naltrexone 50 Mg in people with Alcohol Dependence, run by Medical University of South Carolina at 2 sites 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 overarching aim of this trial is to evaluate naltrexone's efficacy in light of genetic variation and brain response to alcohol cues utilizing a neuroimaging paradigm. This trial has four specific aims. Read more about this study

Who is it for?
Ages 18 to 70 years
Conditions the study is for
Alcohol Dependence
What is being tested?
Naltrexone 50 Mg
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
358 participants
Where
2 sitesUnited States
Study dates
Jun 2009to Dec 2015
Phase
Phase 4
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 70 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Age 18 70
  • Subjects will meet criteria for primary alcohol dependence
  • Consumes, on average, at least 5 standard drinks per day for men and 4 drinks per day for women in the 90 days pre-screening. Has at least 50% of days as heavy drinking days (as defined above).
  • Able to maintain sobriety for four days (with or without the aid of alcohol detoxification medications) as determined by self report and breathalyzer measurements
  • Able to read and understand questionnaires and informed consent
  • Lives within approximately 50 miles of the study site

Who cannot join

  • Currently meets DSM IV criteria for any other psychoactive substance dependence disorder except nicotine dependence
  • Any psychoactive substance abuse, except marijuana, nicotine, and cocaine, within the last 30 days as evidenced by subject report, collateral report, or urine drug screen. May meet cocaine abuse criteria, but not dependence, and also must have two sequential urines free of illicit substances
  • Meets DSM IV criteria for current and active axis I disorders of major depression, panic disorder, obsessive compulsive disorder, post traumatic stress syndrome, bipolar affective disorder, schizophrenia, or any other psychotic disorder or organic mental disorder
  • Meets DSM IV current criteria for dissociative disorder or eating disorders
  • Has current suicidal ideation or homicidal ideation
  • Need for maintenance or acute treatment with any psychoactive medication, except a stable dose (at least one month) of antidepressants
Show all 18Show fewer
  • Need for maintenance on anti-seizure medications (including topiramate and gabapentin)
  • Use of disulfiram, acamprosate, or naltrexone in the last two weeks
  • Clinically significant medical problems such as cardiovascular, renal, GI, or endocrine problem that would impair participation or limit medication ingestion
  • Hepatocellular disease indicated by elevations of SGPT (ALT) and SGOT (AST) of at least 3.0 times normal at screening and/or after 5 days abstinence
  • Sexually active female of child-bearing potential who is pregnant (by urine HCG), nursing, or who is not willing to use a reliable form of birth control
  • Has current charges pending for a violent crime (not including DUI-related offenses)
  • Does not have a stable living situation
  • African American heritage due to low prevalence of Asp40 (also see Inclusion of Women and Minorities section)
  • Having metal objects in the body that are deemed unsafe in the MRI environment.
  • Severe claustrophobia that cannot be managed with support and encouragement.
  • Morbid obesity such that placement in the MRI scanner is impossible.
  • History of significant head injury leading to unconsciousness.

Trial locations and contacts

2 sites in 1 country.

United States2 sites
  • Medical University of South Carolina, Center for Drug and Alcohol Programs

    Charleston, South Carolina, 29425

  • Medical University of South Carolin

    Charleston, South Carolina, 29425

Other trials in United States

About this study

Official title: Genetic and Brain Mechanisms of Naltrexone?s Treatment Efficacy for Alcoholism

The overarching aim of this trial is to evaluate naltrexone's efficacy in light of genetic variation and brain response to alcohol cues utilizing a neuroimaging paradigm. This trial has four specific aims. First, this trial will evaluate whether the presence of the OPRM1 Asp40 allele substitution is associated with improved treatment response to naltrexone in treatment-seeking alcoholics. Second, it will evaluate whether there is a difference in the naltrexone dampening of the alcohol cue-induced brain activation dependent on OPRM1 genotype. Third, it will explore whether alcohol cue-induced brain activation dampening by naltrexone might be a mediating factor in the treatment effects of naltrexone, the OPRM1 gene, or their interaction that might be observed in the first aim. Finally, this trial will evaluate the effect of medication compliance, or adverse effects, on the observed medication by genotype treatment response. A secondary aim will measure medication compliance and side effects based on OPRM1 genotype.

Being tested
Naltrexone 50 Mg, Placebo
Keywords
Alcohol Dependence, Alcoholism, Naltrexone, Substance Abuse, Genetics
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.

  • Naltrexone 50 MgDrug

    Naltrexone 25 or 50 mg per titration schedule

  • PlaceboDrug

    placebo

Study groups in NCT00920829
Study groupRoleWhat they receive
A118G A/A with NaltrexoneActive comparatorIndividuals with the OPRM1 genotype Asn40 are given naltrexone 50 mg after 2 days at 25 mg for 16 weeks with Medication Management 9 visits in 16 weeks
Receives: Drug: Naltrexone 50 Mg
A118G A/A with PlaceboPlacebo comparatorIndividuals with the OPRM1 genotype Asn40 are given Placebo for 16 weeks with Medication Management in 16 weeks
Receives: Drug: Placebo
A118G Any G with NaltrexoneActive comparatorIndividuals with the OPRM1 genotype Any G (Asp) are given naltrexone 50 mg after 2 days of naltrexone 25 mg for 16 weeks with Medication Management 9 visits in 16 weeks
Receives: Drug: Naltrexone 50 Mg
A118G Any G with PlaceboPlacebo comparatorIndividuals with the OPRM1 genotype Any G (Asp) are given 50 mg naltrexone after 2 days at 25 mg for 16 weeks with Medication Management 9 visits in 16 weeks
Receives: Drug: Placebo

What is being measured

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

  1. Percent Heavy Drinking Days by mu Opioid Receptor Gene

    Measured: Time Line Follow-Back drinking collected at each of 9 visits (weeks 1, 2, 3, 4, 6, 8, 10, 12 and 16)

Timeline

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

  1. First posted15 Jun 2009 (estimated)
  2. Study startJun 2009
  3. Primary completionDec 2015
  4. Study completionDec 2015

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
Factorial
Masking
Triple blind
Who is masked
Participant, Care provider, Investigator
Enrolment
358 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00920829
Sponsor's protocol ID
ANTON-1R01AA017633-01A1
Status last verified
Jun 2018
First submitted
11 Jun 2009
Last updated
10 Jul 2018
Data monitoring committee
Yes

Publications

  • Schacht JP, Randall PK, Latham PK, Voronin KE, Book SW, Myrick H, Anton RF. Predictors of Naltrexone Response in a Randomized Trial: Reward-Related Brain Activation, OPRM1 Genotype, and Smoking Status. Neuropsychopharmacology. 2017 Dec;42(13):2640-2653. doi: 10.1038/npp.2017.74. Epub 2017 Apr 14.

    PubMed 28409564

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Naltrexone 50 Mg in people with Alcohol Dependence, run by Medical University of South Carolina at 2 sites 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 6 inclusion and 18 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 10 Jul 2018. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites 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?

Yes. Results are posted in the registry (first posted 4 Jun 2018). 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 by mu Opioid Receptor Gene (time frame: Time Line Follow-Back drinking collected at each of 9 visits (weeks 1, 2, 3, 4, 6, 8, 10, 12 and 16)). 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 NCT00920829, 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 10 Jul 2018.

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