NCT03667846

Brief Summary

This is a double-blind, 2-group randomized controlled trial evaluating the effects of topiramate versus placebo in patients with comorbid PTSD and moderate-to-severe AUD. This trial will provide one of the first rigorous tests of whether the effects of topiramate in AUD generalize to patients with co-occurring PTSD, and one of the first rigorous tests of whether topiramate has beneficial effects on PTSD symptoms in this population. It will be the first study to test whether the rs2832407 genotype predicts clinical response to topiramate for AUD and PTSD in patients with both disorders. Further, it will contribute to the understanding of topiramate's mechanisms of action in the co-morbid AUD/PTSD population, and to the discovery of predictors of treatment response.

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
150

participants targeted

Target at P75+ for phase_2

Timeline
Completed

Started Oct 2019

Longer than P75 for phase_2

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

August 22, 2018

Completed
21 days until next milestone

First Posted

Study publicly available on registry

September 12, 2018

Completed
1.1 years until next milestone

Study Start

First participant enrolled

October 10, 2019

Completed
5.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 31, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

August 31, 2025

Completed
Last Updated

April 1, 2025

Status Verified

March 1, 2025

Enrollment Period

5.9 years

First QC Date

August 22, 2018

Last Update Submit

March 31, 2025

Conditions

Outcome Measures

Primary Outcomes (3)

  • Measure of Time-line Follow-back (TLFB)

    Retrospective estimate of daily alcohol consumption over a time period ranging from 7 days to 24 months prior to initial interview

    Day 1

  • Percent Day Abstinent from Alcohol

    Percentage of day abstinent from alcohol between week 9 and week 12

    Week 9 to Week 12

  • PCL-5 score

    20-item self-report measure that assesses the 20 DSM-5 symptoms of PTSD. The symptom severity score (range - 0-80) can be obtained by summing the scores for each of the 20 items. Each question is measured on a 5-point Likert (0 = "Not at all" to 4 = "Extremely"). A total symptom severity score (range - 0-80; 80 being more severe) can be obtained by summing the scores for each of the 20 items.

    Week 9 to Week 12

Study Arms (2)

Placebo

PLACEBO COMPARATOR

Placebo

Other: Placebo

Topiramate

EXPERIMENTAL

Week 0-1: 25 mg qhs Week 1-2: 25 mg qAM, 25 mg qhs Week 2-3: 25 mg qAM, 50 mg qhs Week 3-4: 50 mg qAM, 50 mg qhs Week 4-5: 50 mg qAM, 75 mg qhs Week 5-6: 75 mg qAM, 75 mg qhs Week 6-7: 75 mg qAM, 100 mg qhs Week 7-8: 100 mg qAM, 100 mg qhs Week 8-10: 100 mg qAM, 100 mg qhs Week 10-12: 100 mg qAM, 100 mg qhs Week 12-14: 2-week taper

Drug: Topiramate

Interventions

Generic topiramate, FDA-approve for clinical use, will be purchased in 25mg, 50mg, and 100mg strengths, and encapsulated.

Also known as: Topamax
Topiramate
PlaceboOTHER

Placebo tablets will be encapsulated in identical capsules.

Placebo

Eligibility Criteria

Age18 Years - 70 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Males and females aged 18-70 years old
  • DSM-5 diagnosis of moderate or severe AUD (using SCID5)
  • Endorse a desire to cut down or stop drinking
  • At least 4 heavy drinking days (4 or more drinks per day for a woman, 5 or more drinks per day for a man) in the 30 days prior to screen
  • DSM-5 current diagnosis of PTSD with the Clinician Administered PTSD Scale OR subPTSD diagnosis (meeting criterion A, F, G, H and at least 6 symptoms across any criteria B-E) with Clinician Administered PTSD Scale (CAPS-5)
  • If of childbearing potential (male or female), are willing to use contraception for duration of the trial
  • Able to provide at least 2 locators
  • Able to provide voluntary informed consent
  • Confirms they are reliably domiciled

You may not qualify if:

  • Current alcohol withdrawal (CIWA-Ar score \>7)
  • DSM-5 diagnosis of schizophrenia, schizoaffective disorder, bipolar disorder I, current significant suicidality (assessed using the C-SSRS), any significant suicidal behavior in the past 12 months, or any history of serious suicide attempts requiring hospitalization, or active homicidality
  • DSM-5 diagnosis of current severe substance use disorder for a substance other than alcohol or nicotine
  • Any history of severe traumatic brain injury (assessed using the OSU TBI-ID modified). If current (past 12 months) mild/moderate TBI and CSI score ≥12 (for either lifetime month or current month), the PI will determine eligibility.
  • Exposure to trauma in the last 30 days, including police duty or military service
  • Significantly impaired liver function defined as a) alanine aminotransferase (ALT) and/or aspartate aminotransferase (AST) \> 5 x upper limit of normal (ULN); b) ALT or AST \> 3 x ULN with concomitant total bilirubin \> 2.0 x ULN; or c) ALT or AST ≥ 3 x ULN with the appearance of fatigue, nausea, vomiting, right upper quadrant pain or tenderness, fever, rash, and/or eosinophilia
  • Other medical conditions which would preclude safe participation in the study
  • Significant laboratory abnormalities, including significantly impaired hepatic function, abnormalities in complete blood count or metabolic panel
  • Current use of medications with the potential for adverse drug-drug interactions including but not limited to CNS depressants specified anticonvulsants (such as: Phenytoin, Carbamazepine and Depakote), metformin, and pharmacologic treatments for addictions including alcohol use disorder ,and other Carbonic Anhydrase inhibitors (i.e. zonisamide, acetazolamide, dichlorphenamide). Oral contraceptives are permitted as long as participants who are on an estrogen and/or estrogen-progesterone form use a double barrier contraceptive. Antidepressant medications are permitted if participants have been on a stable dose for at least 4 weeks prior to screening and the dose may not be changed during treatment phase (weeks 0-14) of the study.
  • Pregnancy or lactation
  • Current treatment for AUD (with the exception of AA/12-step treatment and/or psychosocial treatment initiated more than 2 months prior to the screening visit)
  • Current treatment for methadone or opioid abuse
  • Psychotherapy for PTSD or other psychiatric condition, if initiated within 3 months of screening
  • Allergy or hypersensitivity to topiramate
  • Active legal problems likely to result in incarceration within 12 weeks of treatment initiation
  • +3 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

New York University School of Medicine

New York, New York, 10016, United States

RECRUITING

MeSH Terms

Conditions

Stress Disorders, Post-TraumaticAlcoholism

Interventions

Topiramate

Condition Hierarchy (Ancestors)

Stress Disorders, TraumaticTrauma and Stressor Related DisordersMental DisordersAlcohol-Related DisordersSubstance-Related DisordersChemically-Induced Disorders

Intervention Hierarchy (Ancestors)

FructoseHexosesMonosaccharidesSugarsCarbohydratesKetoses

Study Officials

  • Charles Marmar, MD

    NYU Langone Health

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 22, 2018

First Posted

September 12, 2018

Study Start

October 10, 2019

Primary Completion

August 31, 2025

Study Completion

August 31, 2025

Last Updated

April 1, 2025

Record last verified: 2025-03

Data Sharing

IPD Sharing
Will share

All of the individual participant data collected during the trial, after deidentification.

Shared Documents
STUDY PROTOCOL, SAP, CSR
Time Frame
Data will be made available within twelve months of database lock or following publication of primary manuscript, whichever occurs first. Data will be available indefinitely.
Access Criteria
Anyone who wishes to access the data.

Locations