A Study to Assess Whether PDE5 Inhibitors Increase the Chance of Triggering the Onset of Acute NAION
Public ClinicalTrials.gov record NCT00759174. 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
Case Crossover Study of PDE5 Inhibitor Exposure as a Potential "Trigger Factor" for Acute NAION
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
The objective of this non-interventional study is to examine whether use of Phosphodiesterase Inhibitors (PDE5s), including use of sildenafil, vardenafil, or tadalafil, triggers the onset of acute NAION.
Study identification
- NCT ID
- NCT00759174
- Recruitment status
- Completed
- Study type
- Observational
- Phase
- Not listed
- Enrollment
- 673 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 45 Years and older
- Sex
- Male
- 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
- Oct 31, 2008
- Primary completion
- Sep 30, 2012
- Completion
- Sep 30, 2012
- Last update posted
- Jan 31, 2021
2008 – 2012
United States locations
- U.S. sites
- 69
- U.S. states
- 32
- U.S. cities
- 60
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Pfizer Investigational Site | Birmingham | Alabama | 35294 | — |
| Pfizer Investigational Site | Mobile | Alabama | 36606 | — |
| Pfizer Investigational Site | Anchorage | Alaska | 99501 | — |
| Pfizer Investigational Site | Little Rock | Arkansas | 72205-7199 | — |
| Pfizer Investigational Site | Little Rock | Arkansas | 72212 | — |
| Pfizer Investigational Site | Loma Linda | California | 92354 | — |
| Pfizer Investigational Site | Long Beach | California | 90813 | — |
| Pfizer Investigational Site | Los Angeles | California | 90033 | — |
| Pfizer Investigational Site | Los Angeles | California | 90095 | — |
| Pfizer Investigational Site | Oceanside | California | 92056 | — |
| Pfizer Investigational Site | Pasadena | California | 91105 | — |
| Pfizer Investigational Site | Aurora | Colorado | 80045 | — |
| Pfizer Investigational Site | New Haven | Connecticut | 06510 | — |
| Pfizer Investigational Site | Southbury | Connecticut | 06488 | — |
| Pfizer Investigational Site | Waterbury | Connecticut | 06708 | — |
| Pfizer Investigational Site | Washington D.C. | District of Columbia | 20007 | — |
| Pfizer Investigational Site | Washington D.C. | District of Columbia | 20037 | — |
| Pfizer Investigational Site | Bradenton | Florida | 34208 | — |
| Pfizer Investigational Site | Miami | Florida | 33136 | — |
| Pfizer Investigational Site | Tampa | Florida | 33612 | — |
| Pfizer Investigational Site | Atlanta | Georgia | 30322 | — |
| Pfizer Investigational Site | Augusta | Georgia | 30909 | — |
| Pfizer Investigational Site | Lisle | Illinois | 60532 | — |
| Pfizer Investigational Site | Dubuque | Iowa | 52002 | — |
| Pfizer Investigational Site | Prairie Village | Kansas | 66208 | — |
| Pfizer Investigational Site | Lafayette | Louisiana | 70503 | — |
| Pfizer Investigational Site | Lafayette | Louisiana | 70506 | — |
| Pfizer Investigational Site | Ruston | Louisiana | 71270 | — |
| Pfizer Investigational Site | Baltimore | Maryland | 21204 | — |
| Pfizer Investigational Site | Baltimore | Maryland | 21287 | — |
| Pfizer Investigational Site | Beverly | Massachusetts | 01915 | — |
| Pfizer Investigational Site | Boston | Massachusetts | 02114 | — |
| Pfizer Investigational Site | North Dartmouth | Massachusetts | 02747 | — |
| Pfizer Investigational Site | Ann Arbor | Michigan | 48105 | — |
| Pfizer Investigational Site | Detroit | Michigan | 48202 | — |
| Pfizer Investigational Site | Minneapolis | Minnesota | 55455 | — |
| Pfizer Investigational Site | St Louis | Missouri | 63104 | — |
| Pfizer Investigational Site | Omaha | Nebraska | 68198 | — |
| Pfizer Investigational Site | Reno | Nevada | 89502 | — |
| Pfizer Investigational Site | Lebanon | New Hampshire | 03756 | — |
| Pfizer Investigational Site | Manchester | New Hampshire | 03104 | — |
| Pfizer Investigational Site | Chester | New Jersey | 07930 | — |
| Pfizer Investigational Site | Newark | New Jersey | 07103 | — |
| Pfizer Investigational Site | Roseland | New Jersey | 07068 | — |
| Pfizer Investigational Site | Teaneck | New Jersey | 07666 | — |
| Pfizer Investigational Site | Latham | New York | 12110 | — |
| Pfizer Investigational Site | Rochester | New York | 14642 | — |
| Pfizer Investigational Site | Stony Brook | New York | 11794 | — |
| Pfizer Investigational Site | Troy | New York | 12180 | — |
| Pfizer Investigational Site | Woodbury | New York | 11788 | — |
| Pfizer Investigational Site | Durham | North Carolina | 27705 | — |
| Pfizer Investigational Site | Cincinnati | Ohio | 45242 | — |
| Pfizer Investigational Site | Columbus | Ohio | 43215 | — |
| Pfizer Investigational Site | Portland | Oregon | 97239 | — |
| Pfizer Investigational Site | Lancaster | Pennsylvania | 17602 | — |
| Pfizer Investigational Site | Philadelphia | Pennsylvania | 19104 | — |
| Pfizer Investigational Site | Philadelphia | Pennsylvania | 19107 | — |
| Pfizer Investigational Site | Philadelphia | Pennsylvania | 19114 | — |
| Pfizer Investigational Site | Pittsburgh | Pennsylvania | 15212 | — |
| Pfizer Investigational Site | Charleston | South Carolina | 29425 | — |
| Pfizer Investigational Site | Greenville | South Carolina | 29615 | — |
| Pfizer Investigational Site | Spartanburg | South Carolina | 29302 | — |
| Pfizer Investigational Site | Spartanburg | South Carolina | 29306 | — |
| Pfizer Investigational Site | Austin | Texas | 78705 | — |
| Pfizer Investigational Site | Houston | Texas | 77030 | — |
| Pfizer Investigational Site | Salt Lake City | Utah | 84132 | — |
| Pfizer Investigational Site | Richmond | Virginia | 23226 | — |
| Pfizer Investigational Site | Richmond | Virginia | 23298 | — |
| Pfizer Investigational Site | Seattle | Washington | 98104 | — |
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 36 non-U.S. sites.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT00759174, 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 Jan 31, 2021 · Synced Sep 25, 2026
Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.
Open the official record
The complete protocol, eligibility criteria, and contact information for NCT00759174 live on ClinicalTrials.gov.