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CompletedNCT00018603Updated Jan 21, 2009

Guanfacine for the Treatment of Post Traumatic Stress Disorder (PTSD)

A Phase 1 interventional study of guanfacine in Post-Traumatic Stress Disorder, sponsored by US Department of Veterans Affairs. Completed at 1 site in United States. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2009-01-21.

Sponsored by US Department of Veterans Affairs · Phase 1, Interventional, and Treatment

Phase
Phase 1
Study type
Interventional
Allocation
Randomized
Ages
18 Years to 65 Years
Sex
All
01

Study summary

This is a double-blind, placebo-controlled, randomized study lasting 8 weeks. Purpose of the study is two-fold: first, to use a pharmacological agent to treat symptoms of PTSD, and second, to explore neurobiological mechanisms of action of guanfacine.

Read the detailed description

Subject population is comprised of 100 persons with PTSD. 50 patients will receive guanfacine and 50 patients will receive a placebo. Guanfacine is prescribed at 1 mg/day and may be increased to 2 mg/day. Samples of plasma MHPG will be collected weekly. Clinical ratings of PTSD anxiety and depression, as well as vital signs, will be assessed weekly. Repeated measures analysis of variance will assess significance of main effect of drug, time, and drug by time.

02

Conditions studied

  • Post-Traumatic Stress Disorder

Keywords

  • PTSD
03

In context

Stress Disorders, Traumatic

1,147 studies on the registry are indexed under Stress Disorders, Traumatic; 108 are open to participants now.

Browse Stress Disorders, Traumatic studies →

Lead sponsor

US Department of Veterans Affairs is the lead sponsor of 658 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
No

Eligibility criteria

  • Males and females, age 18-65
  • Diagnosis of PTSD from combat or civilian trauma
  • No major medical problems such as diabetes, cardiovascular disease
  • Taking no psychiatric medication, or taking only one SSRI antidepressant
05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double

Interventions

  • Drugguanfacine
06

Study locations

1 site
  • VA Connecticut Healthcare System
    West Haven, Connecticut 06516, United States
07

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 21, 2009, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
08

Registry details

Key details

Study ID
NCT00018603
Lead sponsor
US Department of Veterans Affairs
First posted
Jul 5, 2001
Start date
Nov 1999
Completion
Oct 2002
Last update
Jan 21, 2009
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Dec 2004. You cannot join it, but the record below documents what was studied.

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