- Conditions
- Erectile Dysfunction
- Interventions
- Sildenafil
- Drug
- Lead sponsor
- Pfizer's Upjohn has merged with Mylan to form Viatris Inc.
- Industry
- Eligibility
- 18 Years to 55 Years · Male only
- Enrollment
- 18 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2008
- U.S. locations
- 1
- States / cities
- New Haven, Connecticut
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 are retrieved from ClinicalTrials.gov and synchronized into the directory. Search pages remain noindex by default.
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Showing 1–24
of 177
matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
- Conditions
- Erectile Dysfunction
- Interventions
- Sildenafil Cream, Placebo Cream, Penile Plethysmography (RigiScan)
- Drug · Device
- Lead sponsor
- Strategic Science & Technologies, LLC
- Industry
- Eligibility
- 18 Years to 70 Years · Male only
- Enrollment
- 33 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2015 – 2017
- U.S. locations
- 3
- States / cities
- San Diego, California • New Orleans, Louisiana • New York, New York
- Conditions
- Hypertension, Pulmonary
- Interventions
- PF-00489791, placebo, sildenafil
- Drug
- Lead sponsor
- Pfizer
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 48 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009 – 2010
- U.S. locations
- 8
- States / cities
- Phoenix, Arizona • Gainesville, Florida • Omaha, Nebraska + 2 more
- Conditions
- Fontan Circulation
- Interventions
- Sildenafil, Placebo, Sildenafil 2, Placebo 2
- Drug
- Lead sponsor
- Milton S. Hershey Medical Center
- Other
- Eligibility
- 6 Years to 17 Years
- Enrollment
- 17 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2009 – 2012
- U.S. locations
- 1
- States / cities
- Hershey, Pennsylvania
- Conditions
- Improve Endothelial Function and Decrease Vascular Stenosis
- Interventions
- Sildenafil, Placebo
- Drug · Other
- Lead sponsor
- University of Alabama at Birmingham
- Other
- Eligibility
- 19 Years to 99 Years
- Enrollment
- 4 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2015 – 2018
- U.S. locations
- 1
- States / cities
- Birmingham, Alabama
- Conditions
- Pulmonary Disease, Chronic Obstructive, Emphysema
- Interventions
- sildenafil citrate, Placebo
- Drug
- Lead sponsor
- Kawut, Steven, MD
- Individual
- Eligibility
- 40 Years and older
- Enrollment
- 10 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2005 – 2008
- U.S. locations
- 1
- States / cities
- New York, New York
- Conditions
- Glioblastoma, Recurrent Adult Brain Neoplasm, Malignant Glioma, WHO Grade III Glioma
- Interventions
- sorafenib tosylate, valproic acid, sildenafil citrate
- Drug
- Lead sponsor
- Virginia Commonwealth University
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 47 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2013 – 2023
- U.S. locations
- 1
- States / cities
- Richmond, Virginia
- Conditions
- Female Sexual Arousal Disorder
- Interventions
- Sildenafil, Placebo
- Drug
- Lead sponsor
- Strategic Science & Technologies, LLC
- Industry
- Eligibility
- 21 Years and older · Female only
- Enrollment
- 440 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2021
- U.S. locations
- 51
- States / cities
- Mobile, Alabama • Phoenix, Arizona • Tucson, Arizona + 45 more
- Conditions
- Erectile Dysfunction
- Interventions
- tadalafil
- Drug
- Lead sponsor
- Eli Lilly and Company
- Industry
- Eligibility
- 30 Years to 65 Years · Male only
- Enrollment
- 198 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2005 – 2006
- U.S. locations
- 1
- States / cities
- Indianapolis, Indiana
- Conditions
- Impotence, Prostatic Neoplasms
- Interventions
- Sildenafil therapy plus post-NSRRP HBO2T, Sildenafil therapy plus sham post-NSRRP HBO2T
- Drug
- Lead sponsor
- Hartford Hospital
- Other
- Eligibility
- 40 Years to 65 Years · Male only
- Enrollment
- 100 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009 – 2021
- U.S. locations
- 1
- States / cities
- Hartford, Connecticut
- Conditions
- Hypoactive Sexual Desire Disorder
- Interventions
- Placebo, Sildenafil, Testosterone
- Drug
- Lead sponsor
- Emotional Brain NY Inc.
- Industry
- Eligibility
- 21 Years to 70 Years · Female only
- Enrollment
- 196 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- Started 2011
- U.S. locations
- 14
- States / cities
- San Diego, California • Washington D.C., District of Columbia • Brooksville, Florida + 11 more
- Conditions
- Pulmonary Arterial Hypertension, Children
- Interventions
- Sildenafil citrate, Placebo
- Drug
- Lead sponsor
- Pfizer's Upjohn has merged with Mylan to form Viatris Inc.
- Industry
- Eligibility
- 1 Year to 17 Years
- Enrollment
- 235 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2003 – 2008
- U.S. locations
- 10
- States / cities
- Palo Alto, California • Stanford, California • Aurora, Colorado + 7 more
- Conditions
- Fatigue, Aging
- Interventions
- Placebo sildenafil, Sildenafil
- Drug
- Lead sponsor
- The University of Texas Medical Branch, Galveston
- Other
- Eligibility
- 20 Years to 80 Years · Male only
- Enrollment
- 12 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2010 – 2013
- U.S. locations
- 1
- States / cities
- Galveston, Texas
- Conditions
- Heart Failure
- Interventions
- Sildenafil
- Drug
- Lead sponsor
- University of New Mexico
- Other
- Eligibility
- 18 Years to 99 Years
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2008 – 2011
- U.S. locations
- 1
- States / cities
- Albuquerque, New Mexico
- Conditions
- Cystic Fibrosis
- Interventions
- sildenafil, placebo
- Drug
- Lead sponsor
- National Jewish Health
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 14 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2015 – 2018
- U.S. locations
- 1
- States / cities
- Denver, Colorado
- Conditions
- Erectile Dysfunction
- Interventions
- ASP-001.1, ASP-001.1
- Drug · Device
- Lead sponsor
- Aspargo Labs, Inc
- Industry
- Eligibility
- 20 Years to 70 Years · Male only
- Enrollment
- 12 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2025 – 2026
- U.S. locations
- 1
- States / cities
- New York, New York
- Conditions
- Heart Disease
- Interventions
- Sildenafil by injection
- Drug
- Lead sponsor
- Duke University
- Other
- Eligibility
- 3 Months to 120 Months
- Enrollment
- 21 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2011 – 2012
- U.S. locations
- 1
- States / cities
- Durham, North Carolina
- Conditions
- Cystic Fibrosis
- Interventions
- sildenafil
- Drug
- Lead sponsor
- National Jewish Health
- Other
- Eligibility
- 14 Years and older
- Enrollment
- 36 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2008 – 2012
- U.S. locations
- 1
- States / cities
- Denver, Colorado
- Conditions
- Metabolic Syndrome
- Interventions
- Sildenafil citrate, Placebo Oral Capsule
- Drug
- Lead sponsor
- Vanderbilt University Medical Center
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 15 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2014 – 2016
- U.S. locations
- 1
- States / cities
- Nashville, Tennessee
- Conditions
- Prostatitis
- Interventions
- Viagra (sildenafil citrate)
- Drug
- Lead sponsor
- University of Washington
- Other
- Eligibility
- 18 Years to 65 Years · Male only
- Enrollment
- 30 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2004 – 2007
- U.S. locations
- 1
- States / cities
- Seattle, Washington
- Conditions
- TBI
- Interventions
- Sildenafil citrate, Functional Near Infared Spectroscopy, Hypercapnia Challenge
- Drug · Device · Other
- Lead sponsor
- University of Pennsylvania
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 26 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2016 – 2022
- U.S. locations
- 1
- States / cities
- Philadelphia, Pennsylvania
- Conditions
- Nontuberculous Mycobacterial Infection
- Interventions
- Sildenafil
- Drug
- Lead sponsor
- National Institute of Allergy and Infectious Diseases (NIAID)
- NIH
- Eligibility
- 18 Years and older
- Enrollment
- 10 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2013 – 2014
- U.S. locations
- 1
- States / cities
- Bethesda, Maryland
- Conditions
- Nonarteritic Anterior Ischemic Optic Neuropathy
- Interventions
- PDE5 Inhibitors
- Drug
- Lead sponsor
- Eli Lilly and Company
- Industry
- Eligibility
- 18 Years and older · Male only
- Enrollment
- 345 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010 – 2015
- U.S. locations
- 44
- States / cities
- Birmingham, Alabama • Los Altos, California • National City, California + 40 more
- Conditions
- Erectile Dysfunction
- Interventions
- sildenafil, placebo
- Drug
- Lead sponsor
- Pfizer's Upjohn has merged with Mylan to form Viatris Inc.
- Industry
- Eligibility
- 21 Years and older
- Enrollment
- 300 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2003 – 2004
- U.S. locations
- 31
- States / cities
- Huntsville, Alabama • Little Rock, Arkansas • Beverly Hills, California + 26 more