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Pulmonary Arterial Hypertension Clinical Trials

A listing of Pulmonary Arterial Hypertension medical research trials actively recruiting patient volunteers. Search for closest city to find more detailed information on a research study in your area.


Found (11) clinical trials

The Combination Ambrisentan Plus Spironolactone in Pulmonary Arterial Hypertension Study

A prospective, double blind, placebo-controlled clinical study involving 30 patients with World Health Organization (WHO) Group 1 pulmonary arterial hypertension being treated with ambrisentan randomized to receive placebo or spironolactone (50 mg/d) for 90 days using a cross-over trial design. Eligible participants will be randomized to receive placebo or spironolactone ...


Long Term Safety and Efficacy of APD811 in Pulmonary Arterial Hypertension

This study is an open-label extension study to determine the long-term safety and tolerability of APD811 in patients with WHO Group 1 PAH who have completed the Phase 2 study, APD811-003. Patients must have completed the APD811-003 study and must meet eligibility criteria for APD811-007.


Early Treatment of Borderline Pulmonary Arterial Hypertension Associated With Systemic Sclerosis (SSc-APAH)

Treatment naïve patients with SSc-APAH will be included in the investigator initiated trial (IIT) to assess efficacy and safety of ambrisentan. As patients life-expectancy after diagnosis of untreated patients is only one year we put forward a screening to identify borderline PAH patients and treat them before PH manifests. Therapy ...


The Expression and Significance of MiRNA

You will be asked to donate blood when you have your right heart catheterization and also at the 3-4 month follow-up visit. The amount of blood collected during your heart catheterization is about 20cc (about 4 teaspoons). This blood is discarded as part of the clinical catheterization procedure, but we ...

Phase N/A

Pharmacogenomics in Pulmonary Arterial Hypertension

This study will make use of a large population of well defined patients with Pulmonary Arterial Hypertension who were enrolled in Encysive Pharmaceutical's STRIDE clinical trials or who have received bosentan or ambrisentan for 4 months or longer. This international study constitutes the largest clinical study of this deadly disease ...

Phase N/A

Hemodynamic Response After Six Months of Sildenafil

Pulmonary arterial hypertension is a chronic devastating disease. There are few approval oral treatments. Sildenafil, a phosphodiesterase 5 inhibitors, has been recently approved for patients on functional class II and III showing hemodynamic benefits after 12 weeks of treatment. Long term hemodynamic evaluation after sildenafil treatment has not been evaluating ...


Safety and Efficacy Study of Transplantation of EPCs to Treat Idiopathic Pulmonary Arterial Hypertension

Experimental data suggest that transplantation of endothelial progenitor cells (EPCs) attenuates monocrotaline-induced pulmonary hypertension in rats and dogs. In addition, clinical studies suggest that autogolous progenitor cells transplantation is feasible and safe in patients with ischemic disease. This study will investigate the feasibility, safety, and initial clinical outcome of intravenous ...

Phase N/A

A Study of Tadalafil in Pediatric Participants With Pulmonary Arterial Hypertension (PAH)

The main purpose of this study is to evaluate the safety and efficacy of tadalafil in pediatric participants with pulmonary arterial hypertension. Participants will receive study treatment for 6 months in the double-blind period (Period 1), and then will be eligible to enroll into an open-label 2 year extension period ...


Effects of Oral Sildenafil on Mortality in Adults With PAH

This is a blinded study in adult patients with PAH evaluating the relative effects of sildenafil on mortality when administered at the three doses (80 mg, 20 mg or 5 mg, all three times per day [TID]). In addition, the relative effects on clinical worsening and 6-minute walking distance (6MWD) ...


OPsumit USers Registry

Prospective observational drug registry developed to characterize the safety profile (including primarily potential serious hepatic risks) and to describe clinical characteristics and outcomes of patients newly treated with Opsumit in the post-marketing setting.

Phase N/A