A Study to Assess the Efficacy and Safety of 20, 40, and 80mg of Sildenafil Three Times a Day in the Treatment of Pulmonary Arterial Hypertension

NCT00644605 · clinicaltrials.gov ↗

PHASE3

Phase

COMPLETED

Status

275

Enrollment

INDUSTRY

Sponsor class

Conditions

Hypertension, Pulmonary

Interventions

DRUG: sildenafil
DRUG: sildenafil
DRUG: placebo
DRUG: sildenafil

Sponsor

Pfizer's Upjohn has merged with Mylan to form Viatris Inc.