12 studies were found.

1.		Recruiting	Study of Inhaled Nitric Oxide for Preterm Infants Conditions: Respiratory Distress Syndrome; Infant, Premature; Sepsis; Pneumonia; Hypertension, Pulmonary
2.		Recruiting	Inhaled Nitric Oxide and Transfusion Therapy for Patients with Sickle Cell Anemia and Secondary Pulmonary Hypertension Conditions: Sickle Cell Anemia; Pulmonary Hypertension
3.		Recruiting	Secondary Pulmonary Hypertension in Adults with Sickle Cell Anemia Conditions: Pulmonary Hypertension; Sickle Cell Anemia
4.		Recruiting	Phase III Randomized Study of UT-15 in Patients with Primary Pulmonary Hypertension Condition: Pulmonary Hypertension
5.		Recruiting	Genetic and Environmental Pathogenesis of PPH Conditions: Lung Diseases; Hypertension, Pulmonary
6.		Recruiting	The Effect of Tracleer™ on Male Fertility Condition: Hypertension, Pulmonary
7.		Recruiting	Efficacy and Safety of Oral Bosentan in Pulmonary Arterial Hypertension Class II Condition: Pulmonary Hypertension
8.		Recruiting	ARIES - Ambrisentan in Patients with Moderate to Severe Pulmonary Arterial Hypertension (PAH) Condition: Pulmonary Hypertension
9.		Recruiting	A Study to Evaluate the Safety and Pilot Efficacy of Iloprost Inhaled Solution as Add-On Therapy with Bosentan in Subjects with Pulmonary Arterial Hypertension Conditions: Pulmonary Arterial Hypertension; PAH; Pulmonary Hypertension
10.		Recruiting	A Transition Study From Flolan® to Remodulin® in Patients with Pulmonary Arterial Hypertension Conditions: Pulmonary Arterial Hypertension; Pulmonary Hypertension
11.		Recruiting	Development of a Hospital-Based Home Program for the Use of Inhaled Nitric Oxide in the Chronic Management of Severe Cardiopulmonary Diseases Conditions: Pulmonary Hypertension; Lung Disease; Sickle Cell Disease; Cardiac transplant; Lung transplant
12.		Recruiting	Natural History of Sickle Cell Disease and Other Hemolytic Disorders Conditions: Hemoglobin SC Disease; Hematologic Diseases