Guanfacine for the Treatment of Post Traumatic Stress Disorder (PTSD)
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government.
Read our disclaimer for details.
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.
Condition or disease
Post-Traumatic Stress Disorder
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.
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.
Ages Eligible for Study:
18 Years to 65 Years (Adult)
Sexes Eligible for Study:
Accepts Healthy Volunteers:
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