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PTSDPhase 4TAPNCT01087736

Topiramate Treatment of Alcohol Use Disorders in Veterans With Post Traumatic Stress Disorder (PTSD): A Pilot Controlled Trial of Augmentation Therapy

A Phase 4 study testing Topiramate in people with PTSD and Alcohol Abuse, run by University of California, San Francisco 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 proposed project aims to: 1. Obtain a preliminary assessment of the efficacy of topiramate treatment in reducing alcohol use in veterans with Post Traumatic Stress Disorder (PTSD) and alcohol dependence; 2. Obtain preliminary assessments of safety/tolerability of topiramate in these patients; 3. Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
PTSD, Alcohol Abuse, Alcoholism
What is being tested?
Topiramate
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
30 participants
Where
1 siteUnited States
Study dates
Apr 2010to Dec 2013
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
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Male and female outpatient veterans.
  • Current DSM-IV diagnosis of PTSD.
  • Current (past month) DSM-IV diagnosis of an Alcohol Use Disorder.
  • Must meet criteria for "heavy" or "at-risk" drinking by NIAAA thresholds.
  • Receiving treatment for PTSD.
  • Must express desire to reduce alcohol consumption.
  • Female subjects must have negative urine pregnancy test and must be either postmenopausal for at least one year, or practicing an effective method of birth control.
  • Must have a BAC of less than 0.02% when signing the informed consent.

Who cannot join

  • Psychotic disorders, bipolar disorder, dementia, or other psychiatric disorders judged to be unstable.
  • Subjects known to have clinically significant unstable medical conditions, including but not limited to: clinically significant renal disease and/or impaired renal function as defined by clinically significant elevation of BUN or creatinine or an estimated creatinine clearance of < 60 mL/min; AST (SGOT) and/or ALT (SGPT) >3 times the upper limit of the normal range and/or an increased serum bilirubin >2 times the upper limit of normal; seizure disorders.
  • Subjects with glaucoma.
  • Subjects with a history of kidney stones.
  • Subjects with a history of renal disease.
  • Concurrent participation in another treatment study.
Show all 16Show fewer
  • Female patients who are pregnant or lactating.
  • Current topiramate use or use within the past 4 weeks.
  • Current medications for alcohol dependence or use within the past 4 weeks.
  • Needing acute medical detoxification from alcohol based on a score of 12 or more on the Clinical Institute Withdrawal Assessment of Alcohol Scale (CIWA-AD);
  • Subjects who are legally mandated to participate in an alcohol treatment program.
  • Subjects who have had a suicide attempt or suicidal ideation in the 6 months prior to enrollment.
  • Subjects who have previously been treated with topiramate for any reason and discontinued treatment due to an adverse event or due to a hypersensitivity reaction to topiramate,
  • Subjects with seizure disorders that require anticonvulsant medications
  • Subjects currently being treated with another anticonvulsant.
  • Subjects who in the opinion of the investigator should not be enrolled in the study because of the precautions,warnings or contraindications outlined in the topiramate package insert.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • San Francisco VA Medical Center

    San Francisco, California, 94121

Other trials in United States

About this study

The proposed project aims to:

  1. Obtain a preliminary assessment of the efficacy of topiramate treatment in reducing alcohol use in veterans with Post Traumatic Stress Disorder (PTSD) and alcohol dependence;
  2. Obtain preliminary assessments of safety/tolerability of topiramate in these patients;
  3. Assess the feasibility of recruitment and retention for topiramate treatment in this comorbid population; and 4) to inform the design of a planned subsequent larger controlled trial of topiramate.
Read more

PRIMARY HYPOTHESIS: Topiramate treatment combined with Medical Management alcohol counseling will be associated with a significant decrease in percent drinking days from baseline to end of treatment.

SECONDARY HYPOTHESIS: There will be significantly less percent drinking days in the topiramate treatment group compared to the placebo group.

Read the detailed description

The goal of the proposed project is to improve the treatment of veterans with co-occurring Post Traumatic Stress Disorder (PTSD) and alcohol dependence. Exposure to the stresses of combat is known to be associated with risk for both PTSD and alcohol and other substance use. PTSD and alcohol use disorders occur frequently among returning OEF/OIF veterans. Alcohol and substance use are risk factors for the development of PTSD, moderators of PTSD symptom severity, and potential consequences of PTSD. Alcohol is by far the most common substance of abuse in patients with PTSD, and its use may represent an attempt by PTSD patients to "self-medicate" symptoms such as hyperarousal. However, to date there has been little research to develop pharmacotherapies that would, ideally, reduce both alcohol use and PTSD symptoms.

Topiramate is one of the few medications for alcohol dependence that has also been tested as a potential medication to treat PTSD. Topiramate's efficacy in alcohol dependence has been shown in two recent large controlled trials. Several open trials have suggested that topiramate may be effective in reducing PTSD symptoms while the results of two small controlled trials have been mixed.

A clinical trial of topiramate is therefore indicated in order to achieve the following specific aims:

The primary aim is to obtain a preliminary assessment of the efficacy of topiramate in increasing the percent of days abstinent from alcohol use from baseline to the end of treatment in veterans with PTSD and alcohol abuse/dependence who are drinking heavily.

The secondary aim is to obtain a preliminary assessment of the efficacy of topiramate in increasing the percent of days abstinent from alcohol as compared to placebo.

Additional aims include the following:

  • To obtain a preliminary assessment of the efficacy of topiramate in reducing other measures of alcohol use such as percent heavy drinking days, number of drinks per week, number of drinks per drinking day, and alcohol craving.
  • To obtain a preliminary assessment of the efficacy of topiramate in reducing PTSD symptom severity in veterans with chronic PTSD and alcohol abuse/dependence.
  • Informing the design of a planned subsequent larger controlled trial of topiramate in veterans with chronic PTSD and alcohol abuse/dependence
  • To obtain an estimate of topiramate vs. placebo effect size for future studies. B. To obtain a preliminary assessment of the effects of topiramate treatment on measures of risk-taking behavior in veterans with chronic PTSD and alcohol abuse/dependence.

To achieve these aims, we will conduct a prospective, parallel groups, randomized, double-blind, placebo-controlled flexible-dose pilot clinical trial of topiramate in veterans with PTSD and alcohol abuse/dependence who are already receiving standard treatment for PTSD but still drink heavily. The primary treatment outcome will be percent days abstinent from alcohol; secondary outcomes will include other alcohol use measures, PTSD symptom severity, adverse effects, recruitment and retention rates.

Being tested
Topiramate, Placebo administration
Keywords
PTSD, Alcohol abuse, Alcoholism, Topiramate, Stress Disorder, Post Traumatic, Chronic Post-Traumatic Stress Disorder
Medical subject headings
Stress Disorders, Post-Traumatic, Alcoholism

What participants receive

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

  • TopiramateDrug

    Also called Topamax, Qnexa

    After random assignment, topiramate will be titrated up over 5 weeks. Dosing begins at 25 mg per day, and increase in the second week to 25 mg twice per day; in the third week to 50 mg twice/day; in the fourth week to 75 mg twice/day; in the 5th week to 100 mg twice/day; and in weeks 6-11 increased to and maintained at 100 mg in the morning and 200 mg at night. Patients will receive the highest dose tolerated, not to exceed 300 mg per day. Adjustments are permitted throughout titration. Once maximum tolerated dosage is reached, subjects will be asked to maintain dosage for remainder of the treatment phase. Upon completing the 6 week maintenance period subjects will taper off over a 7-day period (Week 12). If subjects experience significant side effects, the dosage may be adjusted.

  • Placebo administrationOther

    Also called Placebo, Sugar pill

    Placebo pills will be prepared by the UCSF pharmacy which will be indistinguishable from the topiramate pills used in that arm. Both topiramate and placebo will then be delivered to the VA pharmacy. A consulting biostatistician will randomly assign participants to either the topiramate or placebo group. The dosing of placebo pills will follow the same regimen as outlined for the topiramate arm. In the event of a safety issue, there will be a procedure for unblinding only that participant.

Study groups in NCT01087736
Study groupRoleWhat they receive
TopiramateExperimentalParticipants will be randomly assigned to either the topiramate arm or placebo arm. Neither the participant nor the researchers will know which arm the participant is in. Participants in the topiramate arm will be ingesting daily doses of topiramate that will gradually increase to a maximum, and then taper off.
Receives: Drug: Topiramate
PlaceboPlacebo comparatorThe Drug Product Services Laboratory at UCSF will purchase and supply our lab with USP or NF grade topiramate study capsules and matching placebo capsules. Randomization will be done by a consulting biostatistician, who will be the only one to know which participants are assigned to placebo. Dosing will follow the same procedures as with topiramate in that arm of the study. If adverse events occur, there will be a procedure in place for unblinding only that participant.
Receives: Other: Placebo administration

What is being measured

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

  1. Percent Drinking Days (%DD)

    Alcohol consumption was assessed at baseline and weekly during the treatment phase (12 weeks) using the Time Line Follow Back (TLFB) interview which yields number of days of alcohol use (DD).

    DD: day on which alcohol was consumed Standard alcoholic drink defined as containing 13.6 g of pure alcohol.

    Measured: Weekly, weeks 1-12, average

Timeline

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

  1. First posted16 Mar 2010 (estimated)
  2. Study startApr 2010
  3. Primary completionSep 2012
  4. Study completionDec 2013

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
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
30 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01087736
Sponsor's protocol ID
H5220-34690-01
Other IDs
DAMD17-03-1-0532
Acronym
TAP
Status last verified
May 2014
First submitted
15 Mar 2010
Last updated
3 Jun 2014
Data monitoring committee
Yes

Publications

  • Alderman CP, McCarthy LC, Condon JT, Marwood AC, Fuller JR. Topiramate in combat-related posttraumatic stress disorder. Ann Pharmacother. 2009 Apr;43(4):635-41. doi: 10.1345/aph.1L578. Epub 2009 Mar 31.

    PubMed 19336652
  • Anton RF, O'Malley SS, Ciraulo DA, Cisler RA, Couper D, Donovan DM, Gastfriend DR, Hosking JD, Johnson BA, LoCastro JS, Longabaugh R, Mason BJ, Mattson ME, Miller WR, Pettinati HM, Randall CL, Swift R, Weiss RD, Williams LD, Zweben A; COMBINE Study Research Group. Combined pharmacotherapies and behavioral interventions for alcohol dependence: the COMBINE study: a randomized controlled trial. JAMA. 2006 May 3;295(17):2003-17. doi: 10.1001/jama.295.17.2003.

    PubMed 16670409
  • Anton RF, Moak DH, Latham P. The Obsessive Compulsive Drinking Scale: a self-rated instrument for the quantification of thoughts about alcohol and drinking behavior. Alcohol Clin Exp Res. 1995 Feb;19(1):92-9. doi: 10.1111/j.1530-0277.1995.tb01475.x.

    PubMed 7771669
  • Baker F, Johnson MW, Bickel WK. Delay discounting in current and never-before cigarette smokers: similarities and differences across commodity, sign, and magnitude. J Abnorm Psychol. 2003 Aug;112(3):382-92. doi: 10.1037/0021-843x.112.3.382.

    PubMed 12943017
  • Batki SL, Dimmock JA, Wade M, Gately PW, Cornell M, Maisto SA, Carey KB, Ploutz-Snyder R. Monitored naltrexone without counseling for alcohol abuse/dependence in schizophrenia-spectrum disorders. Am J Addict. 2007 Jul-Aug;16(4):253-9. doi: 10.1080/10550490701389732.

    PubMed 17661192
  • Beckham JC, Crawford AL, Feldman ME. Trail making test performance in Vietnam combat veterans with and without posttraumatic stress disorder. J Trauma Stress. 1998 Oct;11(4):811-9. doi: 10.1023/A:1024409903617.

    PubMed 9870231
  • Berlant J, van Kammen DP. Open-label topiramate as primary or adjunctive therapy in chronic civilian posttraumatic stress disorder: a preliminary report. J Clin Psychiatry. 2002 Jan;63(1):15-20. doi: 10.4088/jcp.v63n0104.

    PubMed 11838620
  • Berlant JL. Prospective open-label study of add-on and monotherapy topiramate in civilians with chronic nonhallucinatory posttraumatic stress disorder. BMC Psychiatry. 2004 Aug 18;4:24. doi: 10.1186/1471-244X-4-24.

    PubMed 15315714

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Topiramate in people with PTSD and Alcohol Abuse, run by University of California, San Francisco 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 8 inclusion and 16 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 3 Jun 2014. 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?

Yes. Results are posted in the registry (first posted 3 Jun 2014). 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 Drinking Days (%DD) (time frame: Weekly, weeks 1-12, average). 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 NCT01087736, which also lists 8 linked publications.

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 3 Jun 2014.

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