- Conditions
- Pulmonary Hypertension, Familial Persistent, of the Newborn
- Interventions
- placebo, iv sildenafil
- Drug
- Lead sponsor
- Pfizer's Upjohn has merged with Mylan to form Viatris Inc.
- Industry
- Eligibility
- 0 Days to 4 Days
- Enrollment
- 59 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2013 – 2020
- U.S. locations
- 20
- States / cities
- Little Rock, Arkansas • Sacramento, California • Washington D.C., District of Columbia + 8 more
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 1–24
of 71
matching trials from the live ClinicalTrials.gov search.
- 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
- Cystic Fibrosis
- Interventions
- Sildenafil (Acute-1 hour), Sildenafil (Subchronic-4 weeks), Placebo
- Drug
- Lead sponsor
- Augusta University
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 19 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2014 – 2018
- U.S. locations
- 1
- States / cities
- Augusta, Georgia
- Conditions
- Erectile Dysfunction, Sexual Dysfunction
- Interventions
- Placebo, Dapoxetine, PDE5I (phosphodiesterase-5 inhibitor)
- Drug
- Lead sponsor
- Johnson & Johnson Pharmaceutical Research & Development, L.L.C.
- Industry
- Eligibility
- 18 Years and older · Male only
- Enrollment
- 495 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010 – 2011
- U.S. locations
- 19
- States / cities
- Decatur, Alabama • Huntsville, Alabama • Englewood, Colorado + 16 more
- Conditions
- Heart Failure
- Interventions
- Placebo, Sildenafil
- Drug
- Lead sponsor
- Duke University
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 216 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2008 – 2012
- U.S. locations
- 9
- States / cities
- Phoenix, Arizona • Atlanta, Georgia • Boston, Massachusetts + 6 more
- Conditions
- Neonatal Encephalopathy
- Interventions
- Sildenafil, Ora-Blend
- Drug
- Lead sponsor
- Pia Wintermark
- Other
- Eligibility
- 0 Minutes to 48 Hours
- Enrollment
- 60 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2024 – 2031
- U.S. locations
- 1
- States / cities
- Denver, Colorado
- Conditions
- Fatigue
- Interventions
- Sildenafil, tadalafil, Placebo
- Drug
- Lead sponsor
- The University of Texas Medical Branch, Galveston
- Other
- Eligibility
- 50 Years to 60 Years
- Enrollment
- 30 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2012 – 2015
- U.S. locations
- 1
- States / cities
- Galveston, Texas
- Conditions
- Parkinson's Disease
- Interventions
- sildenafil, Placebo
- Drug
- Lead sponsor
- Loma Linda University
- Other
- Eligibility
- 18 Years to 80 Years
- Enrollment
- 2 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2002 – 2009
- U.S. locations
- 1
- States / cities
- Loma Linda, California
- Conditions
- Edema, Pulmonary, Immersion, Diving
- Interventions
- Sildenafil Citrate, Placebo Oral Tablet
- Drug
- Lead sponsor
- Duke University
- Other
- Eligibility
- 18 Years to 45 Years
- Enrollment
- 18 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2019 – 2021
- U.S. locations
- 1
- States / cities
- Durham, North Carolina
- Conditions
- Cardiac Allograft Vasculopathy
- Interventions
- Sildenafil, Placebo
- Drug
- Lead sponsor
- University of Minnesota
- Other
- Eligibility
- 18 Years and older
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010 – 2015
- U.S. locations
- 1
- States / cities
- Minneapolis, Minnesota
- Conditions
- Impotence
- Interventions
- sildenafil citrate, placebo for sildenafil citrate
- Drug
- Lead sponsor
- Pfizer's Upjohn has merged with Mylan to form Viatris Inc.
- Industry
- Eligibility
- 18 Years and older · Male only
- Enrollment
- 209 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2005 – 2006
- U.S. locations
- 20
- States / cities
- Huntsville, Alabama • San Diego, California • Aurora, Colorado + 17 more
- Conditions
- Stroke
- Interventions
- sildenafil citrate, Placebo
- Drug
- Lead sponsor
- University of Utah
- Other
- Eligibility
- 18 Years to 80 Years
- Enrollment
- 11 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2012 – 2016
- U.S. locations
- 1
- States / cities
- Salt Lake City, Utah
- 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
- Persistent Pulmonary Hypertension, Respiratory Failure
- Interventions
- Intravenous Sildenafil, Placebo
- Drug · Other
- Lead sponsor
- University of Colorado, Denver
- Other
- Eligibility
- Up to 72 Hours
- Enrollment
- 3 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2011 – 2013
- U.S. locations
- 7
- States / cities
- Aurora, Colorado • Chicago, Illinois • Buffalo, New York + 2 more
- Conditions
- Erectile Dysfunction, Diabetes Mellitus, Type 2
- Interventions
- sildenafil, placebo
- Drug
- Lead sponsor
- Pfizer's Upjohn has merged with Mylan to form Viatris Inc.
- Industry
- Eligibility
- 35 Years to 70 Years · Male only
- Enrollment
- 300 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2002 – 2004
- U.S. locations
- 28
- States / cities
- Huntsville, Alabama • Phoenix, Arizona • Beverly Hills, California + 21 more
- Conditions
- Bronchopulmonary Dysplasia of Newborn
- Interventions
- Sildenafil, Placebo
- Drug
- Lead sponsor
- Christoph Hornik
- Other
- Eligibility
- Up to 29 Weeks
- Enrollment
- 125 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2021 – 2025
- U.S. locations
- 25
- States / cities
- Little Rock, Arkansas • San Diego, California • Washington D.C., District of Columbia + 19 more
- Conditions
- Impaired Glucose Tolerance
- Interventions
- Sildenafil, Placebo, Hyperglycemic clamp, Euglycemic clamp
- Drug · Diagnostic Test
- Lead sponsor
- Vanderbilt University
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 78 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2011 – 2016
- U.S. locations
- 1
- States / cities
- Nashville, Tennessee
- Conditions
- Pediatric Pulmonary Hypertension
- Interventions
- Mono-Therapy with Sildenafil, Duo-Therapy with Sildenafil + Bosentan
- Drug
- Lead sponsor
- Johns Hopkins University
- Other
- Eligibility
- 3 Months to 18 Years
- Enrollment
- 28 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2022 – 2025
- U.S. locations
- 10
- States / cities
- Aurora, Colorado • St. Petersburg, Florida • Baltimore, Maryland + 7 more
- Conditions
- Cystic Fibrosis
- Interventions
- Sildenafil, Placebo
- Drug
- Lead sponsor
- National Jewish Health
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 19 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2015 – 2017
- U.S. locations
- 1
- States / cities
- Denver, Colorado
- Conditions
- Bronchopulmonary Dysplasia
- Interventions
- Sildenafil, Placebo
- Drug · Other
- Lead sponsor
- University of North Carolina, Chapel Hill
- Other
- Eligibility
- 7 Days to 28 Days
- Enrollment
- 109 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2018 – 2025
- U.S. locations
- 14
- States / cities
- Little Rock, Arkansas • Jacksonville, Florida • Chicago, Illinois + 10 more
- Conditions
- Urinary Incontinence
- Interventions
- Sildenafil, Placebo
- Drug
- Lead sponsor
- The University of Texas Medical Branch, Galveston
- Other
- Eligibility
- 50 Years to 80 Years · Female only
- Enrollment
- 24 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2017 – 2028
- U.S. locations
- 1
- States / cities
- Galveston, Texas
- Conditions
- Traumatic Brain Injury
- Interventions
- Sildenafil Citrate low dose, Placebo, Sildenafil medium dose, Sildenafil high dose
- Drug
- Lead sponsor
- University of Pennsylvania
- Other
- Eligibility
- 18 Years to 70 Years
- Enrollment
- 160 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2024 – 2027
- U.S. locations
- 1
- States / cities
- Philadelphia, Pennsylvania
- Conditions
- Hernia, Diaphragmatic, Hypertension, Pulmonary, Hypoplasia, Pulmonary
- Interventions
- sildenafil, Placebo
- Drug
- Lead sponsor
- University of California, San Francisco
- Other
- Eligibility
- 10 Days to 42 Days
- Enrollment
- 9 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2006 – 2013
- U.S. locations
- 3
- States / cities
- Los Angeles, California • San Francisco, California • Chicago, Illinois
- Conditions
- Vascular Diseases
- Interventions
- Sildenafil, Placebo
- Drug · Other
- Lead sponsor
- Montefiore Medical Center
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 50 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2025 – 2029
- U.S. locations
- 1
- States / cities
- The Bronx, New York