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Alcohol DependencePhase 2/3NCT01182766

New Treatment for Alcohol and Nicotine Dependence

A Phase 2/3 study testing Low-Dose Topiramate and High-Dose Topiramate in people with Alcohol Dependence and Nicotine Dependence, run by University of Virginia at 4 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

This research study aims to test whether topiramate (a drug that is being used for seizure) will help individuals who have problems with both alcohol and nicotine. The investigators believe that individuals taking topiramate will be more successful at abstaining from both alcohol and nicotine than individuals taking… Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Alcohol Dependence, Nicotine Dependence
What is being tested?
Low-Dose Topiramate and High-Dose Topiramate
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
236 participants
Where
4 sitesUnited States
Study dates
1 Nov 2011to 6 Oct 2017
Phase
Phase 2/3
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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Males and females who have given written informed consent
  • Subjects must be above the age of 18
  • Good physical health
  • Diagnostic and Statistical Manual (DSM)-IV diagnosis of mild to severe alcohol use disorder
  • Smoking ≥ 5 cigarettes/day
  • Currently drinking at least 8 standard drink units (SDUs) per week for women and at least 15 SDUs per week in the 30 days prior to randomization
Show all 10Show fewer
  • Subjects must provide evidence of stable residence
  • The pregnancy test for females of child-bearing potential at screen and prior to randomization must be negative. Additionally, women of child-bearing potential must be using an acceptable form of contraception.
  • Literate in English and able to read, understand, and complete the rating scales and questionnaires accurately, follow instructions, and make use of the behavioral treatments
  • Willing to participate in a treatment program for alcohol and nicotine dependence

Who cannot join

  • Please contact site for additional information

Trial locations and contacts

4 sites in 1 country.

United States4 sites
  • University of Virginia Center for Addiction Research & Education

    Charlottesville, Virginia, 22911

  • University of Texas MD Anderson Cancer Center

    Houston, Texas, 77030

  • University of California, San Diego

    La Jolla, California, 92093

  • University of Virginia Center for Addiction Research & Education

    Richmond, Virginia, 23294

Other trials in United States

About this study

Official title: High and Low Dose Topiramate for the Treatment of Alcohol-Dependent Smokers

This research study aims to test whether topiramate (a drug that is being used for seizure) will help individuals who have problems with both alcohol and nicotine. The investigators believe that individuals taking topiramate will be more successful at abstaining from both alcohol and nicotine than individuals taking placebo.

Read the detailed description

We propose a novel pharmacological strategy for treating alcohol and nicotine dependence concomitantly.

The reinforcing effects of both alcohol and nicotine are mediated through the cortico-mesolimbic dopamine (CMDA) system, and the concomitant use of both drugs enhances their pharmacological effects. We propose a better approach to control dopamine (DA) effects by contemporaneous indirect modulation of DA release and its functional expression. Both DA release from its cell bodies in the ventral tegmental area and the expression of its reinforcing effects through the cortico-mesolimbic system are modulated by gamma-aminobutyric acid (GABA) efferents under the tonic control of glutamate-mediated excitatory amino acid pathways. Thus, it is reasonable to hypothesize that a medication that facilitates cortico-mesolimbic GABAergic function and inhibits glutamate action should diminish both nicotine's and alcohol's reinforcing effects by inhibiting the release of midbrain DA and its functional expression through pathways projecting from the nucleus accumbens to the cortex. The promise of this novel approach is exemplified by our recent proof-of-concept demonstration that topiramate compared with placebo significantly improved smoking abstinence rates and decreased serum cotinine levels among alcohol dependent smokers. An important clinical effect of topiramate in alcohol-dependent individuals appears to be that its anti-withdrawal effects promote the gradual tapering of drinking. Hence, due to this unique anti-withdrawal effect of topiramate, we propose to adopt the same methodology for treating alcohol-dependent individuals, as is common practice with smokers, of setting a target quit date (TQD) after which relapse to either drug can be measured. We propose an 18-week, double-blind clinical trial with follow-up visits at 1 month and 3 months, in which alcohol-dependent smokers will receive brief behavioral compliance enhancement treatment (BBCET) plus a smoking self-help manual as their psychosocial treatment, and will be randomized to receive placebo,high-dose topiramate (up to 250 mg/day), or low-dose topiramate (up to 125 mg/day) to prevent relapse to heavy drinking and smoking. Each of the 3 treatment arms shall contain 98 individuals, with a total N of 294.

The TQD will occur at the beginning of the 6th week of treatment. Our primary objective is to determine whether both low- and high-dose topiramate will be more efficacious than placebo at reducing the percentage of heavy drinking days and increasing the continuous abstinence rate for smoking determined by a combination of self-report and carbon monoxide (CO) monitoring after the TQD and in the last 4 weeks of treatment. We also will be able to determine whether a lower dose of topiramate is as efficacious as the higher dose and, therefore, is associated with a lower adverse profile. Our secondary objectives are to test whether topiramate will be more efficacious than placebo at improving quality of life and reducing craving after the TQD and in the last 4 weeks of treatment and whether this improvement will be sustained in the follow-up phase.

Being tested
Low-Dose Topiramate, Placebo, High-Dose Topiramate
Keywords
alcohol, alcoholism, nicotine, cigarette
Medical subject headings
Alcoholism, Tobacco Use Disorder

What participants receive

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

  • Low-Dose TopiramateDrug

    Also called Topamax

    Low-dose topiramate (up to 125 mg/day) with brief behavioral enhancement therapy

  • PlaceboDrug

    Also called sugar pill

    Placebo with brief behavioral enhancement therapy

  • High-Dose TopiramateDrug

    Also called Topamax

    High-dose topiramate (up to 250 mg/day) with brief behavioral enhancement therapy

Study groups in NCT01182766
Study groupRoleWhat they receive
Low-Dose TopiramateExperimentalLow-dose topiramate (125 mg) with brief behavioral enhancement therapy
Receives: Drug: Low-Dose Topiramate
High-Dose TopiramateExperimentalHigh-dose topiramate (250 mg) with brief behavioral enhancement therapy
Receives: Drug: High-Dose Topiramate
PlaceboPlacebo comparatorPlacebo with brief behavioral enhancement therapy
Receives: Drug: Placebo

What is being measured

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

  1. Continuous Smoking Abstinence in the Last 4 Weeks of Treatment Continuous Smoking Abstinence in the Last 4 Weeks of Treatment

    No smoking in the last 4 weeks of the 18-week treatment with an expired carbon monoxide level of <10 ppm as the biochemical verification. We used the intent-to-treat assumption, where missing smoking data were considered as smoking.

    Measured: Week 15 - 18 of the 18-week medication treatment

  2. Percentage of Heavy Drinking Days (PHDD) in the Last 4 Weeks of Treatment

    A heavy drinking day is defined as >= 5 standard drinking units for men and >= 4 standard drinking units for women. We calculated the PHDD used the intent-to-treat assumption, where missing drinking data were considered as heavy drinking.

    Measured: Week 15 - 18 of the 18-week medication treatment

Secondary outcomes (2)
  1. Quality of Life in the Last 4 Weeks of Treatment

    We used the Quality of Life Enjoyment and Satisfaction Questionnaire (Q-LES-Q) to measure quality of life in the last 4 weeks of treatment. Scoring involves summing the individual item scores on a 5-point scale, with higher scores indicating greater life satisfaction and enjoyment (better outcome). We report here a percent score of subscales contained within the Q-LES-Q, with higher scores indicating a better outcome. The subscales within the questionnaire have different numbers of items, resulting in different ranges of raw scores, so using a percent score, which used the following formula: (raw_score - scale_min_possible_score) / (scale_max_possible_score - scale_min_possible_score), helped normalize such differences, improving interpretation using the same range (i.e., 0 - 100) between subscales.

    Measured: Week 15 - 18 of the 18-week medication treatment

  2. Craving for Alcohol and Cigarettes in the Last 4 Weeks of Treatment

    We used the Visual Analog Scales (VAS) to assess the craving levels for alcohol and cigarettes, respectively. VAS uses a 100 millimeter line, where 0 mm = no craving (minimum value) and 100 mm = strongest craving ever (maximum value). Participants are asked to make a mark on the line that best represents their current level of craving. Research staff then measure the distance in millimeters from the "No Craving" anchor (0 mm) to the participant's mark, which is their score. A higher score is equal to higher craving (worse outcome). Mean scores of the last 4 weeks of treatment are reported.

    Measured: Week 15 - 18 of the 18-week medication treatment

Timeline

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

  1. First posted17 Aug 2010 (estimated)
  2. Study start1 Nov 2011
  3. Primary completion6 Oct 2017
  4. Study completion6 Oct 2017

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 2/3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
236 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01182766
Sponsor's protocol ID
15597
Other IDs
5R01AA019720-02
Status last verified
Oct 2025
First submitted
10 Aug 2010
Last updated
31 Oct 2025
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 2/3 study testing Low-Dose Topiramate and High-Dose Topiramate in people with Alcohol Dependence and Nicotine Dependence, run by University of Virginia at 4 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 10 inclusion and 1 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 31 Oct 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 4 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 combined 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.

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 31 Oct 2025). 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?

Continuous Smoking Abstinence in the Last 4 Weeks of Treatment Continuous Smoking Abstinence in the Last 4 Weeks of Treatment (time frame: Week 15 - 18 of the 18-week medication treatment). The study lists 2 primary outcomes in all. 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 31 Oct 2025.

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