- Conditions
- Emphysema
- Interventions
- Sildenafil 20 MG, Placebo Oral Tablet, Pulse wave velocity, Carotid artery compliance and stiffness, Pressure wave reflection
- Drug · Diagnostic Test
- Lead sponsor
- Eric A. Hoffman
- Other
- Eligibility
- 21 Years to 65 Years
- Enrollment
- 162 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2018 – 2024
- U.S. locations
- 1
- States / cities
- Iowa City, Iowa
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.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Showing 1–6
of 6
matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
- 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
- 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
- Traumatic Brain Injury
- Interventions
- Sildenafil Citrate 50Mg Tab, functional Near-infrared Spectroscopy (fNIRS), Carbon Dioxide (CO2) 5%, Neuropsychological Assessments, Gadolinium contrast infusion, Blood sample collection for research purposes, Structural brain Magnetic Resonance Imaging (MRI
- Drug · Device · Other + 1 more
- Lead sponsor
- Uniformed Services University of the Health Sciences
- Federal
- Eligibility
- 18 Years to 55 Years
- Enrollment
- 1 participant
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2019 – 2020
- U.S. locations
- 1
- States / cities
- Bethesda, Maryland
- 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
- Prostate Cancer, Male Erectile Disorder, Stage I Prostate Cancer, Stage II Prostate Cancer
- Interventions
- sildenafil citrate, alprostadil, robotic-assisted laparoscopic surgery, quality-of-life assessment, questionnaire administration
- Drug · Procedure · Other
- Lead sponsor
- City of Hope Medical Center
- Other
- Eligibility
- 18 Years to 65 Years · Male only
- Enrollment
- 110 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2006 – 2012
- U.S. locations
- 1
- States / cities
- Duarte, California