275
Participants
Start Date
October 31, 2002
Study Completion Date
November 30, 2003
sildenafil
sildenafil 40 mg by mouth three times daily (TID), with doses at least 6 hours apart, for 12 weeks
sildenafil
sildenafil 80 mg by mouth three times daily (TID), with doses at least 6 hours apart, for 12 weeks; initially, patients received 40mg TID for one week and were then up-titrated to 80mg TID
placebo
placebo by mouth three times daily (TID), with doses at least 6 hours apart, for 12 weeks
sildenafil
sildenafil 20 mg by mouth three times daily (TID), with doses at least 6 hours apart, for 12 weeks
Pfizer Investigational Site, Brussels
Pfizer Investigational Site, Budapest
Pfizer Investigational Site, Darlinghurst
Pfizer Investigational Site, Copenhagen
Pfizer Investigational Site, Johannesburg
Pfizer Investigational Site, Leuven
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Pfizer Investigational Site, New York
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Pfizer Investigational Site, Glasgow
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Pfizer's Upjohn has merged with Mylan to form Viatris Inc.
INDUSTRY