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Alcohol DependencePhase 3NCT00183196

Effectiveness of Gabapentin When Used With Naltrexone to Treat Alcohol Dependence Compared to Placebo and Naltrexone Alone

A Phase 3 study testing Naltrexone and Naltrexone plus Gabapentin in people with Alcohol Dependence, run by Medical University of South Carolina 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, after a period of abstinence, adding 6 weeks of gabapentin (a medication approved to treat seizures) to a standard 16-week naltrexone (an opiate blocking agent approved for the treatment of alcohol dependence) treatment protocol is helpful in decreasing relapse to… 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 and Naltrexone plus Gabapentin
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
150 participants
Where
1 siteUnited States
Study dates
Jan 2003to Jun 2009
Phase
Phase 3
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

  • Meet criteria for primary alcohol dependence including loss of control of drinking
  • No more than one previous inpatient medical detoxification
  • Consumes on average 5 standard drinks for men and 4 standard drinks for women
  • Able to maintain sobriety for 4 days (with or without detox medications).
  • Able to read and understand questionnaires and Informed Consent
  • Lives within 50 miles of the study site

Who cannot join

  • Currently meets DSM-IV criteria for any other psychoactive substance dependency disorder except nicotine dependence
  • Ever abused opiates
  • Any psychoactive substance abuse, except marijuana and nicotine within the last 30 days as evidenced by subject report, collateral report, or urine drug screen.
  • Meets DSM-IV criteria for current Axis I disorder of major depression, panic disorder, obsessive-compulsive disorder, post-traumatic stress syndrome, bipolar affective disorder, dissociative disorder or eating disorder, schizophrenia, or any other psychotic disorder or organic mental disorder.
  • Has current suicidal or homicidal ideation
  • Need for maintenance or acute treatment with any psychoactive medication including antiseizure medications.
Show all 14Show fewer
  • Current use of disulfiram.
  • 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 of abstinence.
  • Sexually active females of child bearing potential who are pregnant (by urine HCG), nursing or who are not using 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 and a reliable source of collateral reporting.
  • Has taken an opiate antagonist drug in the last month.
  • Has taken gabapentin in the last month or has experienced adverse effects from it at any time in the past.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Medical University of South Carolina, Center for Drug and Alcohol Programs

    Charleston, South Carolina, 29425

Other trials in United States

About this study

Official title: Gabapentin as an Adjunct to Naltrexone for Alcoholism

The purpose of this study is to determine whether, after a period of abstinence, adding 6 weeks of gabapentin (a medication approved to treat seizures) to a standard 16-week naltrexone (an opiate blocking agent approved for the treatment of alcohol dependence) treatment protocol is helpful in decreasing relapse to drinking compared to naltrexone alone or placebo. All participants will receive alcohol counseling.

Read the detailed description

Subjects will enter the trial after maintaining 4 days of abstinence. During this period multiple assessments will be collected. After entering the double blind treatment portion of the study, they will be evaluated weekly for the first month, then bi-weekly until week 12 and again at week 16. There will be two follow-up visits at weeks 28 and 40. Urinary riboflavin and pill counts will be utilized to determine compliance with the medication regime.

Comparison(s): Naltrexone (50 mg/day) alone for 16-weeks; naltrexone (50 mg/day) for 16-weeks plus gabapentin (up to 1200 mg/day in divided doses) for the first 6 weeks, or inactive placebos. All subjects will receive up to 20 sessions of individual alcohol counseling.

Being tested
Naltrexone, Naltrexone plus Gabapentin, Inactive Placebo
Keywords
Alcohol dependence, Alcoholism, Heavy drinking
Medical subject headings
Alcoholism

What participants receive

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

  • NaltrexoneDrug

    Naltrexone (50 mg/day) plus gabapentin placebo in divided doses for the first 6weeks. Naltrexone (50 mg/day) for rest of 16-weeks

  • Naltrexone plus GabapentinDrug

    naltrexone (50 mg/day) for 16-weeks plus gabapentin (up to 1200 mg/day in divided doses) for the first 6 weeks

  • Inactive PlaceboOther

    Placebo

Study groups in NCT00183196
Study groupRoleWhat they receive
1Active comparatorNaltrexone plus placebo
Receives: Drug: Naltrexone
2Active comparatornaltrexone + gabapentin
Receives: Drug: Naltrexone plus Gabapentin
3Sham comparatorPlacebo plus placebo
Receives: Other: Inactive Placebo

What is being measured

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

  1. Time to Relapse to Drinking

    Time to relapse drinking which is 5 standard drinks perday for males and 4 standard drinks per day for females. Subjects had a minimum of 4 days of abstinence prior to being entered into the protocol.

    Measured: 16 weeks

Timeline

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

  1. First posted16 Sep 2005 (estimated)
  2. Study startJan 2003
  3. Primary completionDec 2008
  4. Study completionJun 2009

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 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Factorial
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
150 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00183196
Sponsor's protocol ID
NIAAAANT09568-2005a
Other IDs
5R01AA009568-14, NIH RO1 AA09568
Status last verified
May 2018
First submitted
13 Sep 2005
Last updated
7 Jun 2018
Data monitoring committee
No

Publications

  • Anton RF, Myrick H, Wright TM, Latham PK, Baros AM, Waid LR, Randall PK. Gabapentin combined with naltrexone for the treatment of alcohol dependence. Am J Psychiatry. 2011 Jul;168(7):709-17. doi: 10.1176/appi.ajp.2011.10101436. Epub 2011 Mar 31.

    PubMed 21454917

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Naltrexone and Naltrexone plus Gabapentin in people with Alcohol Dependence, run by Medical University of South Carolina 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 6 inclusion and 14 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 7 Jun 2018. 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 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

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 30 May 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?

Time to Relapse to Drinking (time frame: 16 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 NCT00183196, 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 7 Jun 2018.

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