Study to Assess the Longterm Safety of Sildenafil Citrate in Patients With Pulmonary Arterial Hypertension
Public ClinicalTrials.gov record NCT00159887. 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.
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Official title
A Multi-Centre, Multinational, Long-Term Extension Study, to Assess the Safety and Toleration of Subject Optimised Treatment Regimens of Oral Sildenafil Citrate for Pulmonary Arterial Hypertension in Subjects Who Have Completed Study A1481140.
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
Open label extension study to the pivotal efficacy study to assess the safety of sildenafil citrate in patients with pulmonary arterial hypertension
Study identification
- NCT ID
- NCT00159887
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 3
- Enrollment
- 260 participants
Conditions and interventions
Conditions
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 2002 (Type not available)
- Primary completion
- Not listed
- Completion
- Feb 2007 (Actual)
- Last update posted
- Feb 1, 2021
2002 – 2007
United States locations
- U.S. sites
- 24
- U.S. states
- 13
- U.S. cities
- 16
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Pfizer Investigational Site | Birmingham | Alabama | 35233 | — |
| Pfizer Investigational Site | Birmingham | Alabama | 35294-0006 | — |
| Pfizer Investigational Site | Birmingham | Alabama | 35294 | — |
| Pfizer Investigational Site | La Jolla | California | 92037 | — |
| Pfizer Investigational Site | La Jolla | California | 92093 | — |
| Pfizer Investigational Site | Los Angeles | California | 90024 | — |
| Pfizer Investigational Site | Los Angeles | California | 90033 | — |
| Pfizer Investigational Site | Los Angeles | California | 90073 | — |
| Pfizer Investigational Site | Los Angeles | California | 90095 | — |
| Pfizer Investigational Site | San Diego | California | 92103-8320 | — |
| Pfizer Investigational Site | Torrance | California | 90502 | — |
| Pfizer Investigational Site | Denver | Colorado | 80220 | — |
| Pfizer Investigational Site | Denver | Colorado | 80262 | — |
| Pfizer Investigational Site | Chicago | Illinois | 60637 | — |
| Pfizer Investigational Site | Baltimore | Maryland | 21287 | — |
| Pfizer Investigational Site | Boston | Massachusetts | 02111 | — |
| Pfizer Investigational Site | Ann Arbor | Michigan | 48109 | — |
| Pfizer Investigational Site | Rochester | Minnesota | 55905 | — |
| Pfizer Investigational Site | New York | New York | 10032 | — |
| Pfizer Investigational Site | Durham | North Carolina | 27710 | — |
| Pfizer Investigational Site | Nashville | Tennessee | 37232-5735 | — |
| Pfizer Investigational Site | Nashville | Tennessee | 37232 | — |
| Pfizer Investigational Site | Houston | Texas | 77030 | — |
| Pfizer Investigational Site | Milwaukee | Wisconsin | 53215 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
Non-U.S. locations
This page focuses on the U.S. directory. The official record also lists 41 non-U.S. sites.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT00159887, 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 Feb 1, 2021 · Synced Nov 4, 2026
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Open the official record
The complete public registry record, listed eligibility criteria, and available contact information for NCT00159887 live on ClinicalTrials.gov.