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AlcoholismPhase 4NCT00329407

The Effects of Topiramate on Alcohol Use in Alcohol Dependent Subjects

A Phase 4 study testing Topiramate (Topamax) in people with Alcoholism, run by Boston University 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

This investigation will assess the effectiveness of topiramate in reducing ethanol consumption by alcohol dependent subjects. It also will seek to establish whether topiramate can be safely used in this population including whether it might be subject to abuse by alcohol dependent individuals. Read more about this study

Who is it for?
Ages 18 to 65 yearsHealthy volunteers can take part
Conditions the study is for
Alcoholism
What is being tested?
Topiramate (Topamax)
Could I receive a placebo?
No, everyone receives an active treatment
How many people
10 participants
Where
1 siteUnited States
Study dates
Sep 2003to Jun 2008
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 65 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • DSM-IV Diagnosis of Alcohol Dependence; Minimal drinking level of 14 drinks per week for women and 20 drinks per week for men over a consecutive 30 day period during the last 90 days
  • Intent to stop drinking
  • Male or female age 18-65
  • Able to maintain sobriety for 3 consecutive days without the use of detoxification medications
  • Able to provide informed consent and to comprehend study procedures.
  • If a woman, then is willing to use an effective means of birth control during throughout the study period. These include: a. barrier (diaphragm or condom) with spermicide b.intrauterine progesterone contraceptive system c. levonorgestrel implant d. medroxyprogesterone acetate contraceptive injection e. complete abstinence

Who cannot join

  • Dependent on or extensive abuse of drugs or substances other than ethanol, nicotine, or caffeine as assessed by urine toxicology (2 out of 3 Dependent on or extensive abuse of drugs or substances other than positive consecutive urines)
  • DSM IV Axis I diagnoses other than ethanol, caffeine, or nicotine dependence severe enough to require treatment with medication or to prevent compliance with the protocol.
  • Currently being treated with disulfiram (Antabuse), naltrexone (ReVia), or acamprosate
  • Currently being treated with any other psychoactive or other CNS medications or a carbonic anhydrase inhibitor (e.g. acetazolamide)
  • In need of medical detoxification from alcohol.
  • Prior history of kidney stones.
Show all 17Show fewer
  • History of liver disease. ALT or AST 3 times higher than upper range of normal values.
  • BUN or serum creatinine outside the normal range
  • Major neurological disorder including seizures
  • Other major diseases including severe hypertension, renal disease, or cardiac disease.
  • Prior participation within 60 days in another clinical study.
  • If female, a positive serum HCG or breast feeding.
  • If female using oral contraceptives as a means of birth control.
  • History of allergic sensitivity to topiramate
  • Pending imprisonment
  • Cardiac pacemaker or metal surgical implant.
  • History of angle closure glaucoma.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Boston University Dept of Psychiatry Clinical Studies Unit

    Boston, Massachusetts, 02118

Other trials in United States

About this study

This investigation will assess the effectiveness of topiramate in reducing ethanol consumption by alcohol dependent subjects. It also will seek to establish whether topiramate can be safely used in this population including whether it might be subject to abuse by alcohol dependent individuals.

A secondary goal of this study is to assess the effects of topiramate on verbal fluency during treatment for alcohol dependence.

Read the detailed description

Alcoholism is a disorder that produces extensive morbidity and mortality. Substantial progress has been made in the development of medications that can help to promote abstinence in alcohol dependent individuals. However, investigations of the most promising drugs, particularly naltrexone and acamprosate, suggest that these agents have at best moderate efficacy and there is a great need for additional medications for the treatment of alcoholism.

The results of a recent study suggest that the administration of the anticonvulsant agent ,topiramate helps alcoholic individuals to maintain abstinence (Johnson et al., 2003). The objectives of this study is to determine whether topiramate will reduce the consumption of alcohol in subjects dependent on this substance, as has been previously reported.Other study objectives are to assess the abuse liability properties of topiramate in alcohol dependent subjects and to examine the effects of chronic topiramate administration on cognitive functioning.

This will be a thirteen week long open label clinical trial of the effects of topiramate administration on ethanol consumption by alcohol dependent subjects.

Subjects will be asked to provide informed consent and then will be screened on the same day to determine if they meet study eligibility criteria. Subjects will be asked to return to provide two urines over the following week.

Baseline measures of mood, craving, withdrawal, cognitive functioning and physical health will be obtained. In the afternoon they will receive their first dose of medication. Their responses to this medication challenge will be assessed over a 3-hour period.

During the drug treatment phase subjects will be asked to come to the clinic weekly for assessment and manual guided therapy during weeks 1-4 and biweekly during weeks 6-8. On day 85 subjects will be seen at the clinic for a termination visit.

Conditions
Alcoholism
Being tested
Topiramate (Topamax)
Keywords
Alcoholism, Heavy Drinking, Alcohol Dependence
Medical subject headings
Alcoholism

What participants receive

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

  • Topiramate (Topamax)Drug

    Medication Dosing Schedule: Days 1-3 50 mg q PM Days 4-7 50 mg BID Days 8-11 50 mg q AM \& 100 mg q PM Days 12-15 100mg BID Days 16-19 100 mg q AM \& 150 mg q PM Days 20-23 150 mg BID Days 24-27 150 mg qAM \& 200 mg q PM Days 28-70 200 mg BID Days 71-77 150 mg BID Days 78-84 100mg BID Days 85-87 50 mg BID Days 88-91 50 mg qPM

Study groups in NCT00329407
Study groupRoleWhat they receive
Topiramate TreatmentActive comparatorIn this open label non-placebo controlled trial all subjects received topiramate, the active medication. Medication Dosing Schedule: Days 1-3 50 mg q PM Days 4-7 50 mg BID Days 8-11 50 mg q AM \& 100 mg q PM Days 12-15 100mg BID Days 16-19 100 mg q AM \& 150 mg q PM Days 20-23 150 mg BID Days 24-27 150 mg qAM \& 200 mg q PM Days 28-70 200 mg BID Days 71-77 150 mg BID Days 78-84 100mg BID Days 85-87 50 mg BID Days 88-91 50 mg qPM
Receives: Drug: Topiramate (Topamax)

What is being measured

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

  1. The Primary Outcome Measure Will be Subjects Ethanol Consumption Over the Course of the Drug Treatment Period as Assessed by the Timeline Followback Method

    The primary outcome was the mean daily consumption of standard alcoholic drinks (14 g per ethanol) during the baseline week compared to week 10, the final week subjects were one maintenance dose of topirmate.

    Measured: 70 days

Secondary outcomes (1)
  1. Phonetic Portion of the Controlled Word Association Test (COWAT)

    Phonetic COWAT is a measure of verbal fluency. Results are in terms of number of words produced starting with a set of particular letters.This involves a comparison of baseline and Week 10 COWAT scores

    Measured: Baseline compared to Week 10

Timeline

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

  1. First posted24 May 2006 (estimated)
  2. Study startSep 2003
  3. Primary completionJun 2008
  4. Study completionJun 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
Non-randomised
Intervention model
Single group
Masking
None (open label)
Enrolment
10 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00329407
Sponsor's protocol ID
H-22296
Status last verified
Aug 2010
First submitted
22 May 2006
Last updated
8 Sep 2010

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Topiramate (Topamax) in people with Alcoholism, run by Boston University 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 17 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 8 Sep 2010. 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 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 Aug 2010). 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?

The Primary Outcome Measure Will be Subjects Ethanol Consumption Over the Course of the Drug Treatment Period as Assessed by the Timeline Followback Method (time frame: 70 days). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 8 Sep 2010.

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