- Conditions
- Posttraumatic Stress Disorder
- Interventions
- Prazosin, Placebo
- Drug
- Lead sponsor
- VA Office of Research and Development
- Federal
- Eligibility
- 21 Years to 75 Years
- Enrollment
- 87 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2018 – 2026
- U.S. locations
- 1
- States / cities
- Seattle, Washington
Search Results
Search by objective public record fields.
Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results come from ClinicalTrials.gov. When the live registry is unavailable, a clearly labeled stored copy may be shown.
These results were retrieved from the live ClinicalTrials.gov registry. Filters and sort order apply to this result list.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Showing 25–48
of 50
matching trials from the live ClinicalTrials.gov search.
- Conditions
- Alzheimer's Disease, Disruptive Behavior
- Interventions
- Prazosin, Placebo oral capsule
- Drug
- Lead sponsor
- Alzheimer's Disease Cooperative Study (ADCS)
- Other
- Eligibility
- Not listed
- Enrollment
- 35 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2018 – 2022
- U.S. locations
- 14
- States / cities
- Sun City, Arizona • Los Angeles, California • San Diego, California + 10 more
- Conditions
- Cocaine Dependence
- Interventions
- Doxazosin, Placebo
- Drug
- Lead sponsor
- Baylor College of Medicine
- Other
- Eligibility
- 18 Years to 64 Years
- Enrollment
- 96 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010 – 2015
- U.S. locations
- 1
- States / cities
- Houston, Texas
- Conditions
- Alcohol Dependence
- Interventions
- Multi-method Neuroendocrine and Neuroimaging Procedure Scan 1, Multi-method Neuroendocrine and Neuroimaging Procedure Scan 2
- Device
- Lead sponsor
- Yale University
- Other
- Eligibility
- 18 Years to 60 Years
- Enrollment
- 224 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2015 – 2022
- U.S. locations
- 1
- States / cities
- New Haven, Connecticut
- Conditions
- Posttraumatic Stress Disorder
- Interventions
- prazosin hydrochloride, placebo
- Drug
- Lead sponsor
- US Department of Veterans Affairs
- Federal
- Eligibility
- 18 Years to 65 Years
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009 – 2011
- U.S. locations
- 1
- States / cities
- Seattle, Washington
- Conditions
- PTSD, Sleep Disorders
- Interventions
- prazosin, placebo
- Drug · Other
- Lead sponsor
- VA Office of Research and Development
- Federal
- Eligibility
- 18 Years and older
- Enrollment
- 304 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2010 – 2013
- U.S. locations
- 15
- States / cities
- Loma Linda, California • Long Beach, California • Palo Alto, California + 12 more
- Conditions
- Alcohol Dependence, Anxiety
- Interventions
- Doxazosin, Placebo
- Drug
- Lead sponsor
- Brown University
- Other
- Eligibility
- 18 Years to 65 Years
- Enrollment
- 41 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2011 – 2015
- U.S. locations
- 2
- States / cities
- Providence, Rhode Island
- Conditions
- Stress Disorders, Post-Traumatic, Combat Disorders, Sleep Disorders
- Interventions
- prazosin hydrochloride, placebo
- Drug
- Lead sponsor
- Seattle Institute for Biomedical and Clinical Research
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 67 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009 – 2013
- U.S. locations
- 2
- States / cities
- Seattle, Washington • Tacoma, Washington
- Conditions
- Alcoholism, Cocaine Dependence
- Interventions
- Prazosin, placebo
- Drug
- Lead sponsor
- US Department of Veterans Affairs
- Federal
- Eligibility
- 18 Years to 70 Years
- Enrollment
- 8 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2004 – 2009
- U.S. locations
- 1
- States / cities
- Seattle, Washington
- Conditions
- Alzheimer Disease, Psychomotor Agitation
- Interventions
- prazosin, placebo (inert substance)
- Drug
- Lead sponsor
- University of Washington
- Other
- Eligibility
- Not listed
- Enrollment
- 24 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2001 – 2009
- U.S. locations
- 1
- States / cities
- Seattle, Washington
- Conditions
- Erectile Dysfunction
- Interventions
- Tamsulosin and avanafil, Doxazosin and avanafil
- Drug
- Lead sponsor
- VIVUS LLC
- Industry
- Eligibility
- 40 Years to 65 Years · Male only
- Enrollment
- 48 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2010
- U.S. locations
- 1
- States / cities
- Tempe, Arizona
- Conditions
- Alcohol Use Disorder (AUD)
- Interventions
- Doxazosin, Placebo
- Drug
- Lead sponsor
- Brown University
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 184 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2019 – 2026
- U.S. locations
- 1
- States / cities
- Providence, Rhode Island
- Conditions
- Alcohol Abuse, Posttraumatic Stress Disorder
- Interventions
- Prazosin, Placebo medication
- Drug
- Lead sponsor
- Seattle Institute for Biomedical and Clinical Research
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 30 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009 – 2012
- U.S. locations
- 1
- States / cities
- Seattle, Washington
- Conditions
- Anxiety Disorders, Mood Disorders, Insomnia, Nightmares
- Interventions
- Behavioral Sleep Intervention, Prazosin, Placebo
- Behavioral · Drug
- Lead sponsor
- University of Pittsburgh
- Other
- Eligibility
- 18 Years to 55 Years
- Enrollment
- 50 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2006 – 2011
- U.S. locations
- 1
- States / cities
- Pittsburgh, Pennsylvania
- Conditions
- Magnetic Resonance Imaging, Cerebrovascular Circulation
- Interventions
- MRI, Prazosin, Placebo
- Device · Drug
- Lead sponsor
- University of Wisconsin, Madison
- Other
- Eligibility
- 20 Years to 40 Years
- Enrollment
- 36 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2025 – 2027
- U.S. locations
- 1
- States / cities
- Madison, Wisconsin
- Conditions
- Cigarette Smoking, Alcohol Use Disorders
- Interventions
- Varenicline, Prazosin, Placebo
- Drug
- Lead sponsor
- Yale University
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 5 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2014 – 2015
- U.S. locations
- 1
- States / cities
- New Haven, Connecticut
- Conditions
- Smoking
- Interventions
- Doxazosin 4mg/day, Placebo, Doxazosin 8mg/day
- Drug
- Lead sponsor
- Yale University
- Other
- Eligibility
- 18 Years to 60 Years
- Enrollment
- 35 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2013 – 2016
- U.S. locations
- 1
- States / cities
- New Haven, Connecticut
- Conditions
- Alcohol Use Disorders, Stress Disorders, Posttraumatic, Combat Disorders
- Interventions
- prazosin hydrochloride, placebo
- Drug
- Lead sponsor
- Seattle Institute for Biomedical and Clinical Research
- Other
- Eligibility
- 21 Years and older
- Enrollment
- 158 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2015 – 2018
- U.S. locations
- 1
- States / cities
- Tacoma, Washington
- Conditions
- Cocaine Dependence
- Interventions
- Doxazosin, Placebo
- Drug
- Lead sponsor
- VA Office of Research and Development
- Federal
- Eligibility
- 18 Years to 64 Years
- Enrollment
- 43 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2014 – 2017
- U.S. locations
- 1
- States / cities
- Houston, Texas
- Conditions
- PTSD
- Interventions
- doxazosin, Perindopril, Placebo
- Drug
- Lead sponsor
- Baylor College of Medicine
- Other
- Eligibility
- 18 Years to 55 Years
- Enrollment
- 30 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2012 – 2014
- U.S. locations
- 1
- States / cities
- Houston, Texas
- Conditions
- Posttraumatic Stress Disorder
- Interventions
- Prazosin, Placebos
- Drug
- Lead sponsor
- University of Colorado, Denver
- Other
- Eligibility
- 18 Years to 50 Years · Female only
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2020 – 2021
- U.S. locations
- 1
- States / cities
- Aurora, Colorado
- Conditions
- Stress Disorders, Post-Traumatic, Bulimia Nervosa
- Interventions
- Prazosin, Placebo
- Drug
- Lead sponsor
- Milton S. Hershey Medical Center
- Other
- Eligibility
- 18 Years to 45 Years · Female only
- Enrollment
- 9 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2015 – 2018
- U.S. locations
- 1
- States / cities
- Hershey, Pennsylvania
- Conditions
- Alcohol Dependence
- Interventions
- Prazosin Tablet, Placebo Tablet
- Drug
- Lead sponsor
- Yale University
- Other
- Eligibility
- 18 Years to 70 Years
- Enrollment
- 100 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009 – 2019
- U.S. locations
- 1
- States / cities
- New Haven, Connecticut
- Conditions
- Post-Traumatic Stress Disorder, Sleep Initiation and Maintenance Disorders
- Interventions
- Prazosin, Placebo, Psychotherapy
- Drug · Behavioral
- Lead sponsor
- Seattle Institute for Biomedical and Clinical Research
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 20 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2003 – 2010
- U.S. locations
- 1
- States / cities
- Seattle, Washington