##  [Novartis Study Shows QTI571 Significantly Improved Walking Distance in Patients with Life-Threatening Pulmonary Arterial Hypertension](/us-en/news/media-releases/novartis-study-shows-qti571-significantly-improved-walking-distance-patients-life-threatening-pulmonary-arterial-hypertension-0 "Novartis Study Shows QTI571 Significantly Improved Walking Distance in Patients with Life-Threatening Pulmonary Arterial Hypertension") 

  Sep 25, 2011