Sildenafil to Tadalafil in Pulmonary Arterial Hypertension (SITAR)

ClinicalTrials.gov ID: NCT01043627

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Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

Assess tolerability, transition methods and clinical effects of transition from sildenafil (Revatio) to tadalafil (Adcirca) for treatment of pulmonary arterial hypertension.

Study identification

NCT ID: NCT01043627
Recruitment status: Completed
Study type: Observational
Phase: Not listed
Lead sponsor: Mayo Clinic; Other
Enrollment: 100 participants

Conditions and interventions

Conditions

Pulmonary Arterial Hypertension

Interventions

Not listed

Eligibility (public fields only)

Age range: 18 Years and older
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: Dec 2009 (Type not available)
Primary completion: Dec 2011 (Actual)
Completion: Dec 2011 (Actual)
Last update posted: Nov 5, 2012

2009 – 2011

United States locations

U.S. sites: 3
U.S. states: 3
U.S. cities: 3

Facility	City	State	ZIP	Site status
Robert Bourge MD	Birmingham	Alabama	35294	—
Ron Oudiz	Torrance	California	90502	—
Charles Burger MD	Jacksonville	Florida	32224	—

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 NCT01043627, 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 Nov 5, 2012 · Synced Nov 14, 2026