Serotonin Selective Reuptake Inhibitor Treatment of Dual Diagnosis Post-traumatic Stress Disorder and Alcohol Problems

Study Results

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE4

Total Enrollment

49 participants

Study Classification

INTERVENTIONAL

Study Start Date

2011-04-30

Study Completion Date

2016-12-31

Brief Summary

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The investigators propose to conduct a clinical trial to evaluate sertraline treatment efficacy in a large sample of military veterans with a dual diagnosis of PTSD and Alcohol Use Disorder who are receiving Cognitive and Behavioral Therapy as part of the VA-system's new dual diagnosis program. The study is designed as an efficacy trial of sertraline used as an adjunct to Cognitive Behavioral Therapy (CBT) in the treatment of PTSD/Alcohol dual diagnosis. There are two outcomes of interest, namely PTSD symptom improvement and also decreased alcohol consumption. The investigators are interested to know whether or not sertraline is superior to placebo in improving the symptoms of either one or both of these two disorders. Even though sertraline is a treatment of choice for PTSD, the investigators expect that the comorbid condition of alcohol dependence will complicate the treatment of PTSD and that the clustered subgroups will show differential treatment response with sertraline. The primary objective of the present study is to identify subgroups of alcohol dependent persons with PTSD who will either benefit or not benefit from treatment with SSRI's. The proposed study will enroll veterans with PTSD and dually-diagnosed alcohol dependence in a 12-week treatment providing sertraline vs. placebo medication as an adjunct to manualized CBT and will specifically test the hypothesis that subtypes of alcohol dependence can be used to predict which patients respond well and which subgroup responds poorly to SSRI treatment.

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Detailed Description

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Experimental Design. The study design is a parallel group, double-blind, placebo-controlled, stratified, randomized medication treatment trial of male and female veterans who experienced "in-theater" trauma and have both a PTSD and Alcohol Use dual diagnosis. All subjects will receive 12 weeks of manualized cognitive \& behavioral therapy as a standard of care. Additionally, subjects will be randomized 1:1 to receive double-blind treatment with Sertraline vs. Placebo as an adjunctive treatment. The manualized therapy provides standard cognitive-behavioral therapy (CBT) addressing alcohol use and prolonged exposure (PE) behavioral therapy targeting PTSD. Sertraline is a common treatment for PTSD and psychiatric disturbance but is hypothesized to have differential efficacy in different subtypes of alcohol drinking patients. A stratified randomization scheme will balance placebo and sertraline assignment to two groups, and a post-hoc clustering approach will be used to determine which subgroups of dual diagnosis patients may benefit from sertraline vs. placebo treatment.

Veterans with PTSD who regularly drink more than 5 standard drinks of alcohol in a day (note one 12oz beer = one standard drink) may be eligible for the study if they meet criteria.

Conditions

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PTSD Alcohol Use Disorder

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

TRIPLE

Participants Investigators Outcome Assessors

Study Groups

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Sertraline

Subjects will receive a fixed dose of 150 mg sertraline per day. Sertraline dose will be gradually increased by giving sertraline subjects capsules filled with 50 mg for the first three days and then capsules filled with 100 mg for 4 days before beginning the 150 mg per day in the second week. After completing the study Visit 12, subjects will be given an additional two week supply of medicine to gradually taper down so as to minimize any withdrawal discomfort.

Subjects in the Sertraline arm also will receive COPE therapy (Concurrent Treatment with Prolonged Exposure)which involves 12 sessions of manualized cognitive and behavioral therapy including exposure therapy for PTSD.

Group Type EXPERIMENTAL

Sertraline

Intervention Type DRUG

A Randomized Controlled Trial Design will randomize subjects to one of two arms. Sertraline is the active medication treatment arm.

Placebo

Matching placebo capsules will be filled with corn starch only on the same schedule as the Sertraline.

Subjects in the Placebo arm also will receive COPE therapy (Concurrent Treatment with Prolonged Exposure)which involves 12 sessions of manualized cognitive and behavioral therapy including exposure therapy for PTSD.

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

A Randomized Controlled Trial Design will randomize subjects to one of two arms. Placebo is the control medication treatment arm.

Interventions

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Sertraline

A Randomized Controlled Trial Design will randomize subjects to one of two arms. Sertraline is the active medication treatment arm.

Intervention Type DRUG

Placebo

A Randomized Controlled Trial Design will randomize subjects to one of two arms. Placebo is the control medication treatment arm.

Intervention Type DRUG

Other Intervention Names

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Zoloft Placebo Control

Eligibility Criteria

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Inclusion Criteria

* 21-65 year old Veterans with PTSD who regularly drink more than 5 standard drinks of alcohol in a day
* who experienced a trauma during deployment and
* who regularly drink more than 5 standard drinks alcohol and
* are interested in coming in once per week for 12 weeks of dual diagnosis individual therapy and
* are willing to participate in a placebo-controlled trial which could include receipt of sertraline (Zoloft).

Exclusion Criteria

* if their PTSD Symptoms are adequately controlled by other medication regimens;
* they require inpatient alcohol detoxification; or currently receive naltrexone, disulfiram, acamprosate, or ondansetron treatment for alcohol dependence; or
* currently have an unstable medical illness; or
* have a bipolar or psychotic disorder; or
* currently are taking and are unwilling to discontinue taking any SSRI, SNRI, MAO inhibitor, tricyclic antidepressant, or anticonvulsant.

Minimum Eligible Age

21 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No