Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Oct 18, 2026, 8:35 PM EDT

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Showing 1–5 of 5 matching trials from the live ClinicalTrials.gov search.
Conditions
Hypertension, Pulmonary
Interventions
PF-00489791, placebo, sildenafil
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
8
States / cities
Phoenix, Arizona • Gainesville, Florida • Omaha, Nebraska + 2 more
Conditions
Diabetic Nephropathies
Interventions
PF-00489791, Placebo
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
256 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2013
U.S. locations
63
States / cities
Huntsville, Alabama • Glendale, Arizona • Tempe, Arizona + 46 more
Completed Phase 2 Interventional Results available

PF-00489791 For The Treatment Of Raynaud's

NCT01090492
Conditions
Raynaud's Disease, Peripheral Vascular Disease
Interventions
PF-00489791
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 65 Years
Enrollment
243 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
23
States / cities
Redwood City, California • Farmington, Connecticut • Washington D.C., District of Columbia + 19 more
Conditions
Hypertension
Interventions
placebo, PF-00489791
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 70 Years
Enrollment
135 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
20
States / cities
Los Angeles, California • Santa Ana, California • Tustin, California + 15 more
Conditions
Postherpetic Neuralgia
Interventions
pregabalin, pregabalin/PF-00489791, Placebo
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008
U.S. locations
39
States / cities
Huntsville, Alabama • Tallassee, Alabama • Chandler, Arizona + 29 more