NCT02226367

Brief Summary

The purpose of the study is to evaluate if the drug prazosin:

  • will decrease alcohol use in active duty members of the military who served in Iraq and/or Afghanistan and
  • determine if presence or absence of posttraumatic stress disorder affects treatment.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
158

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Jan 2015

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

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

July 15, 2014

Completed
1 month until next milestone

First Posted

Study publicly available on registry

August 27, 2014

Completed
4 months until next milestone

Study Start

First participant enrolled

January 1, 2015

Completed
3.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 20, 2018

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

October 20, 2018

Completed
4.3 years until next milestone

Results Posted

Study results publicly available

February 3, 2023

Completed
Last Updated

February 3, 2023

Status Verified

January 1, 2023

Enrollment Period

3.7 years

First QC Date

July 15, 2014

Results QC Date

November 7, 2022

Last Update Submit

January 17, 2023

Conditions

Keywords

prazosinalcohol use disordersposttraumatic stress disorderPTSDcombat traumamilitaryalpha-1 adrenoreceptor antagonist

Outcome Measures

Primary Outcomes (1)

  • Change in Penn Alcohol Craving Scale Score

    Penn Alcohol Craving Scale (PACS) The PACS is a self-report paper-and-pencil instrument. This five-item, self-report measure includes questions about the frequency, intensity, and duration of craving, the ability to resist drinking, and asks for an overall rating of craving for alcohol for the previous week. Each question is scaled from 0 to 6. Total scores are 0 to 30. Lower scores indicate less alcohol craving. Higher scores indicate more alcohol craving.

    Change at Week 13 from Baseline

Study Arms (2)

prazosin hydrochloride

ACTIVE COMPARATOR

Prazosin hydrochloride taken orally. Titrated to a maximum dose 4 mg in the morning, 6 mg in the afternoon, and 10 mg at bedtime. (20 mg total daily at maximum dose) Dose increase will occur if the participant does not have unacceptable side effects.

Drug: prazosin hydrochloride

placebo

PLACEBO COMPARATOR

Placebo. Oral capsule with comparable appearance to active treatment. Titrated in same manner as active treatment.

Drug: placebo

Interventions

study drug arm prazosin

Also known as: prazosin, Pfizer Minipress
prazosin hydrochloride

study drug arm placebo

Also known as: sugar pill
placebo

Eligibility Criteria

Age21 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Male and female active duty returnees from the conflicts in Iraq and/or Afghanistan over the age of 21 with a current Diagnostic and Statistical Manual of Mental Disorders IV diagnosis of Alcohol Abuse or Dependence or a current Diagnostic and Statistical Manual of Mental Disorders 5 diagnosis of Alcohol Use Disorder
  • Participant in Army Substance Abuse Program (6 or 12 week program)
  • Recent alcohol consumption: more than 14 (women) or 21 (men) drinks per week for at least 2 weeks in the past 60 day period OR at least 2 days of heavy drinking in the past 60 day period (4 or more drinks for women and 5 or more drinks for men)

You may not qualify if:

  • Women of childbearing potential must agree to abstain from sexual relations that could result in pregnancy or use an effective method of birth control acceptable to both participant and the study clinician during the study. Men are not required to use contraception during the study.
  • Concomitant use of naltrexone and/or antabuse must be stable for 2 weeks prior to Baseline
  • Capacity to provide informed consent
  • English fluency
  • Current diagnosis of opioid, methamphetamine, cocaine, marijuana, or other illegal substance dependence or abuse.
  • Signs or symptoms of alcohol withdrawal at the time of initial consent
  • Current diagnosis of schizophrenia, other psychotic disorder, manic phase of bipolar disorder, or cognitive disorder.
  • Suicide attempt or suicidal ideation with intent in the past month.
  • Significant acute or chronic medical illness, including unstable angina, recent myocardial infarction, history of congestive heart failure, preexisting hypotension (systolic \<100) or orthostatic hypotension (defined as a systolic drop \> 20 mmHg after two minutes standing accompanied by lightheadedness or syncope); insulin-dependent diabetes mellitus; chronic renal or hepatic failure, acute pancreatitis, Meniere's disease. Liver function tests more than 5 times the upper limit.
  • Concomitant use of trazodone (due to increased risk of priapism). There will be a two week trazodone washout period before the baseline visit.
  • Concomitant use of an alpha-1 blocker medication or insulin
  • Use of prazosin in the 4 weeks prior to Baseline.
  • History of prazosin sensitivity/allergy

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Madigan Army Medical Center

Tacoma, Washington, 98431, United States

Location

MeSH Terms

Conditions

AlcoholismStress Disorders, Post-TraumaticCombat Disorders

Interventions

PrazosinSugars

Condition Hierarchy (Ancestors)

Alcohol-Related DisordersSubstance-Related DisordersChemically-Induced DisordersMental DisordersStress Disorders, TraumaticTrauma and Stressor Related Disorders

Intervention Hierarchy (Ancestors)

QuinazolinesHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-RingHeterocyclic CompoundsCarbohydrates

Results Point of Contact

Title
Murray Raskind, MD
Organization
VA Puget Sound Health Care System

Study Officials

  • Murray Raskind, MD

    Department of Veterans Affairs Puget Sound Health Care System

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 15, 2014

First Posted

August 27, 2014

Study Start

January 1, 2015

Primary Completion

September 20, 2018

Study Completion

October 20, 2018

Last Updated

February 3, 2023

Results First Posted

February 3, 2023

Record last verified: 2023-01

Locations