A Controlled Trial of Topiramate Treatment for Alcohol Dependence in Veterans With PTSD

Inclusion Criteria:

1. Male and female veterans

2. Ages18 to 69 (inclusive)

3. Current DSM-IV diagnosis of PTSD

4. Current (past month) DSM-IV diagnosis of an Alcohol Dependence

5. Level of drinking must meet criteria for "at-risk " or "heavy" drinking by NIAAA
threshold (NIAAA 2007): at least 15 standard drinks per week on average over the 4
weeks prior to study entry for men and at least 8 standard drinks per week on average
for women.

6. Subjects must express a desire to reduce alcohol consumption with the possible
long-term goal of abstinence.

7. Female subjects must have a negative urine pregnancy test and must be either
postmenopausal for at least one year, or practicing an effective method of birth
control (e.g., surgically sterile, spermicide with barrier, male partner
sterilization; or abstinent and agrees to continue abstinence or to use an acceptable
method of contraception, as listed above, should sexual activity commence)

8. Subjects must have a Breath Alcohol Concentration (BAC) of < 0.02% when signing
informed consent.

Exclusion Criteria:

1. Psychotic disorders, bipolar disorder, dementia, or other psychiatric disorders judged
to be unstable.

2. 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 blood urea nitrogen (BUN) or creatinine or an
estimated creatinine clearance of < 60 mL/min

- AST and/or ALT >5 times the upper limit of the normal range and/or an increased
serum bilirubin >2 times the upper limit of normal.

- Seizure disorders

3. History of glaucoma.

4. History of kidney stones.

5. Concurrent participation in another treatment study.

6. Female patients who are pregnant or lactating.

7. Current Topiramate use or use within the past 4 weeks.

8. Current medications for alcohol dependence (disulfiram, naltrexone, or acamprosate) or
use in the past week.

9. 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);

10. Subjects who are legally mandated to participate in an alcohol treatment program.

11. Subjects who have had a suicide attempt in the past 6 months or suicidal ideation in
the 90 days prior to enrollment.

12. 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,

13. Subjects with seizure disorders that require anticonvulsant medications

14. Subjects currently being treated with another anticonvulsant.

15. 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.