- Conditions
- None Volunteer
- Interventions
- sildenafil
- Drug
- Lead sponsor
- Pfizer's Upjohn has merged with Mylan to form Viatris Inc.
- Industry
- Eligibility
- 18 Years to 75 Years
- Enrollment
- 4 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2008
- U.S. locations
- 1
- States / cities
- Cambridge, Massachusetts
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 177
matching trials from the live ClinicalTrials.gov search.
- Conditions
- Cystic Fibrosis
- Interventions
- Sildenafil 40mg oral capsule, Placebo Oral capsule
- Drug
- Lead sponsor
- National Jewish Health
- Other
- Eligibility
- 9 Years and older
- Enrollment
- 31 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2019 – 2024
- U.S. locations
- 2
- States / cities
- Denver, Colorado • Augusta, Georgia
- Conditions
- Brain Tumor
- Interventions
- Asciminib, Sildenafil, Surgical resection or biopsy
- Drug · Procedure
- Lead sponsor
- Washington University School of Medicine
- Other
- Eligibility
- 18 Years to 39 Years
- Enrollment
- 12 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2026 – 2028
- U.S. locations
- 1
- States / cities
- St Louis, Missouri
- 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
- Cirrhosis
- Interventions
- IV bolus injection of Sildenafil
- Drug
- Lead sponsor
- University of Maryland, Baltimore
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 2 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2014 – 2015
- U.S. locations
- 1
- States / cities
- Baltimore, Maryland
- Conditions
- Pulmonary Arterial Hypertension, Idiopathic Pulmonary Fibrosis, Interstitial Lung Disease, Pulmonary Hypertension
- Interventions
- sildenafil
- Drug
- Lead sponsor
- University of California, Los Angeles
- Other
- Eligibility
- Not listed
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2007 – 2009
- U.S. locations
- 1
- States / cities
- Los Angeles, California
- Conditions
- Duchenne Muscular Dystrophy
- Interventions
- Tadalafil and Sildenafil
- Drug
- Lead sponsor
- Cedars-Sinai Medical Center
- Other
- Eligibility
- 7 Years to 15 Years · Male only
- Enrollment
- 12 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- Started 2012
- U.S. locations
- 1
- States / cities
- Los Angeles, California
- Conditions
- Sexual Dysfunctions, Psychological, Sexual Arousal Disorder
- Interventions
- sildenafil
- Drug
- Lead sponsor
- Pfizer's Upjohn has merged with Mylan to form Viatris Inc.
- Industry
- Eligibility
- 18 Years and older · Female only
- Enrollment
- 267 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2003 – 2004
- U.S. locations
- 82
- States / cities
- Huntsville, Alabama • Anchorage, Alaska • Tucson, Arizona + 68 more
- 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
- Traumatic Brain Injury
- Interventions
- Growth Hormone, Sildenafil, Placebo
- Drug
- Lead sponsor
- The University of Texas Medical Branch, Galveston
- Other
- Eligibility
- 18 Years to 60 Years
- Enrollment
- 34 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2014 – 2017
- 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
- Penile Cancer, Erectile Dysfunction, Radical Prostatectomy
- Interventions
- Placebo QHS and sildenafil and questionnaires, Sildenafil and questionnaire, Trimix combination (Papavarine 30mg/mL Phentholamine 1mg/mL Prostaglandin E1 10 mcg/mmL) and questionnaires
- Drug
- Lead sponsor
- Memorial Sloan Kettering Cancer Center
- Other
- Eligibility
- 18 Years and older · Male only
- Enrollment
- 76 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009 – 2020
- U.S. locations
- 1
- States / cities
- New York, New York
- Conditions
- Metabolic Syndrome, Obesity
- Interventions
- Sildenafil, Placebo
- Drug
- Lead sponsor
- Vanderbilt University Medical Center
- Other
- Eligibility
- 18 Years to 60 Years · Female only
- Enrollment
- 46 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2011 – 2013
- U.S. locations
- 1
- States / cities
- Nashville, Tennessee
- Conditions
- Pulmonary Arterial Hypertension
- Interventions
- Imatinib, Sildenafil, Bosentan
- Drug
- Lead sponsor
- Novartis Pharmaceuticals
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 21 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2011 – 2012
- U.S. locations
- 3
- States / cities
- Tampa, Florida • Weston, Florida • Mineola, New York
- Conditions
- Congenital Disorders
- Interventions
- Not listed
- Lead sponsor
- Children's Healthcare of Atlanta
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 48 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 1996 – 2008
- U.S. locations
- 1
- States / cities
- Atlanta, Georgia
- Conditions
- Pulmonary Hypertension
- Interventions
- sildenafil
- Drug
- Lead sponsor
- University of Chicago
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 10 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2003 – 2006
- U.S. locations
- 1
- States / cities
- Chicago, Illinois
- Conditions
- Impotence
- Interventions
- Viagra (Sildenafil Citrate) 100 mg
- Drug
- Lead sponsor
- Pfizer's Upjohn has merged with Mylan to form Viatris Inc.
- Industry
- Eligibility
- 18 Years to 70 Years · Male only
- Enrollment
- 355 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2005 – 2006
- U.S. locations
- 33
- States / cities
- Birmingham, Alabama • Homewood, Alabama • Hoover, Alabama + 30 more
- 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
- Pulmonary Arterial Hypertension
- Interventions
- PDE5 inhibitor, Endothelin Receptor Antagonists
- Drug
- Lead sponsor
- Brigham and Women's Hospital
- Other
- Eligibility
- 65 Years and older
- Enrollment
- 13,021 participants
- Timeline
- 2021 – 2022
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Arthritis, Rheumatoid, Atherosclerosis
- Interventions
- Sildenafil, Placebo
- Drug · Other
- Lead sponsor
- Kimberly Liang
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 25 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2017 – 2020
- U.S. locations
- 1
- States / cities
- Pittsburgh, Pennsylvania
- Conditions
- Vascular System Injuries, Concussion, Brain, Post-Concussion Syndrome
- Interventions
- Sildenafil Citrate, Placebo oral capsule
- Drug
- Lead sponsor
- University of Texas Southwestern Medical Center
- Other
- Eligibility
- 18 Years to 35 Years · Male only
- Enrollment
- 22 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2018 – 2019
- U.S. locations
- 1
- States / cities
- Dallas, Texas
- 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
- Prostate Cancer, Erectile Dysfunction Following Radical Prostatectomy, Erectile Dysfunction Following Simple Prostatectomy, Erectile Dysfunction
- Interventions
- Cognitive-behavioral Meetings, sildenafil citrate, Vacuum Constriction Device
- Behavioral · Drug · Device
- Lead sponsor
- Case Comprehensive Cancer Center
- Other
- Eligibility
- 21 Years and older · Male only
- Enrollment
- 34 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2013 – 2016
- U.S. locations
- 1
- States / cities
- Cleveland, Ohio
- Conditions
- Congestive Heart Failure, Renal Dysfunction
- Interventions
- low dose Nesiritide, nesiritide, Sildenafil
- Drug
- Lead sponsor
- Mayo Clinic
- Other
- Eligibility
- 18 Years to 90 Years
- Enrollment
- 1 participant
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009 – 2010
- U.S. locations
- 2
- States / cities
- Rochester, Minnesota