Study of Effects of Sildenafil on Patients With Fontan Heart Circulation
Public ClinicalTrials.gov record NCT01815502. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Response to Sildenafil in Patients With Fontan Physiology, A Pressure-volume Loop Analysis
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
The study will investigate the cardiovascular effects of sildenafil on patients with Fontan circulation. Recent studies suggest that sildenafil may improve exercise in patients with Fontan circulation. However, why this occurs is not known. The study will used specialized catheters to measure pressure and volume. The measure of pressure and volume leads to more detailed analysis of heart function. Patients will receive either sugar pill or sildenafil prior to catheterization. It is believed that sildenafil will improve relaxation and contraction of the heart.
Study identification
- NCT ID
- NCT01815502
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 4
- Enrollment
- 20 participants
Conditions and interventions
Eligibility (public fields only)
- Age range
- 3 Years to 40 Years
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Jan 31, 2013
- Primary completion
- Nov 30, 2014
- Completion
- Nov 30, 2014
- Last update posted
- Dec 6, 2018
2013 – 2014
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Medical University of South Carolina | Charleston | South Carolina | 29425 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT01815502, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Dec 6, 2018 · Synced Sep 4, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT01815502 live on ClinicalTrials.gov.