Safety and Efficacy of Inhaled Treprostinil as Add-On Therapy to Bosentan in Pulmonary Arterial Hypertension
Richard N. Channick, MD*,*,
Horst Olschewski, MD ,
Werner Seeger, MD ,
Ted Staub, MS ,
Robert Voswinckel, MD and
Lewis J. Rubin, MD*
* UCSD Medical Center, La Jolla, California
Medizinischen Universitaet Graz, Graz, Austria
University of Giessen, Giessen, Germany
LungRx, Satellite Beach, Florida

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Figure 1 Acute effects of inhaled treprostinil followed to 180 min and inhaled nitric oxide in 11 pulmonary arterial hypertension patients. PAPmean = mean pulmonary arterial pressure.
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Figure 2 Individual changes in 6-min walk (6MW) distance from baseline to 12 weeks. Pulmonary capillary hemangiomatosis (PCH) patient is shown and was the only subject to have a decrease in 6MW distance at week 12. * 10% change from baseline.
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