Prazosin for Treatment of Patients With Alcohol Dependence (AD) and Post Traumatic Stress Disorder (PTSD).
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|ClinicalTrials.gov Identifier: NCT00744055|
Recruitment Status : Completed
First Posted : August 29, 2008
Results First Posted : January 18, 2016
Last Update Posted : April 18, 2016
Prazosin is an alpha-1 adrenergic receptor antagonist that has been used successfully in the treatment of trauma nightmares and sleep disturbance in combat veterans with PTSD, and alcohol dependence.
The objective of this study is to evaluate the efficacy of prazosin (16mg) versus placebo in reducing alcohol consumption and decreasing symptoms of PTSD in patients with comorbid AD and PTSD.
|Condition or disease||Intervention/treatment||Phase|
|Alcohol Dependence Stress Disorders, Post-Traumatic||Drug: Prazosin Drug: Placebo||Phase 3|
There is a high rate of comorbidity with alcohol dependence (AD) and post traumatic stress disorder (PTSD). The rates of PTSD among individuals with AD are at least twice as high as those in the general population. In addition, alcohol dependence is the most common comorbid condition in men with PTSD. Despite this, little is known about how to best treat individuals with comorbid AD and PTSD. The use of an alpha-1 adrenergic receptor antagonist represents a novel approach to treatment that may target symptoms of both AD and PTSD. There is evidence of common neurobiological mechanisms that underlie both AD and PTSD. Prazosin is an alpha-1 adrenergic receptor antagonist that has been used successfully in the treatment of trauma nightmares and sleep disturbance in combat veterans with PTSD, and alcohol dependence.
The objective of this study is to evaluate the efficacy of prazosin (16mg) versus placebo in reducing alcohol consumption and decreasing symptoms of PTSD in patients with comorbid AD and PTSD. Methods: Thirty participants with a current diagnosis of AD and PTSD will be enrolled in a 13-week trial. They will be assigned, in a double-blind fashion, to either prazosin or placebo. Significance: This project will be the first to compare prazosin to placebo as effective treatments for reducing alcohol consumption and PTSD symptoms in patients with both AD and PTSD.
|Study Type :||Interventional (Clinical Trial)|
|Actual Enrollment :||96 participants|
|Intervention Model:||Parallel Assignment|
|Masking:||Triple (Participant, Care Provider, Investigator)|
|Official Title:||The Use of Prazosin for Treatment of Patients With Alcohol Dependence (AD) and Post Traumatic Stress Disorder (PTSD).|
|Study Start Date :||January 2009|
|Actual Primary Completion Date :||October 2014|
|Actual Study Completion Date :||October 2014|
prazosin (16mg/day) 2 times a day
Other Name: Minipress
Placebo Comparator: Placebo
Placebo in identical looking capsule blister packs
- Number of Drinking Days [ Time Frame: 12 weeks ]Using the Timeline Follow Back method, a calendar method for assessing drug and alcohol use
- Clinician-Administered PTSD Scale [ Time Frame: 12 weeks ]Clinician-Administered PTSD Scale for DSM-5 (CAPS-5). A higher score is associated with higher severity of PTSD. The score is interpreted as follows: 0-19=Asymptomatic/few symptoms 20-39=Sub-threshold/mild PTSD 40-59=Threshold PTSD/moderate 60-79=Severe PTSD >80=Extreme PTSD
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00744055
|United States, Connecticut|
|VA Connecticut Healthcare System|
|West Haven, Connecticut, United States, 06516|
|Principal Investigator:||Ismene Petrakis, MD||Yale University|