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Showing 1-14 of 14 trials
NCT05584722
Pulmonary arterial hypertension (PAH) is a severe disease with a delayed diagnosis and markedly elevated mortality. High-risk populations, such as those with known genetic defects, provide a unique opportunity to determine the features of susceptibility and resilience to PAH. This proposal will fundamentally overturn the prevailing understanding of PAH by creating molecularly-driven signatures of susceptibility and resilience, provide novel insight into disease severity, and potentially identify new therapeutic targets. Funding Source - FDA OOPD
NCT05493371
The aim of the study is to determine whether conducting a randomized placebo-controlled clinical trial is feasible, safe for the patient and whether the treatment is well tolerated in patients with idiopathic pulmonary arterial hypertension.
NCT06587074
This study will be performed based on a retrospective analysis of the cases of 150-170 patients with IPAH observed at the Research Institute of Clinical Cardiology over the past 10 years, for a comparative assessment of the survival of groups of patients with IPAH diagnosed in the period 2004-2013 and 2014-2023. The demographic, clinical, functional, hemodynamic characteristics of patients, comorbidity, blood biomarker levels, received PAH-specific and symptomatic therapy will be assessed in order to determine the clinical characteristics of patients with IPAH. The prospective part of study will include 50 patients with IPAH.
NCT05767918
Pulmonary Arterial Hypertension is a progressive disease that has no cure. Patients die young and are limited in their daily activity. Current treatments only treat the symptoms of the disease rather than the underlying cause. At least 1 in 5 patients has a change in a gene called the bone morphogenetic type 2 protein (or BMPR2). Extensive evidence supports the concept of addressing the reduced levels of the BMPR2 protein to reverse disease. Through work already undertaken by this group, two potential therapies which increase BMPR2 have been identified for use in a future randomised control trial. In order for a clinical trial to be informative we need an accurate way of measuring the protein or the effects of the protein (known as a biomarker). This study will use blood samples taken from 17 patients and 30 healthy participants over various time-points (2-5 visits over 5 weeks for healthy controls; 2 visits, approximately four months apart for patients). Laboratory work will help identify the best biomarkers for subsequent therapy studies. By defining the best biomarkers we can speed up the drug development in this rare disease.
NCT02565030
This study will help to provide more up to date prognostic data on the natural history of untreated proximal CTEPH which will be helpful in discussions regarding surgical versus medical treatment and by exploring the similarities and differences between distal CTEPH and IPAH the investigators hope to get insights into disease mechanisms in patients with distal CTEPH.
NCT03069716
This study proposes the use of a mobile health intervention (utilizing a smart phone app) to encourage increased exercise in PAH patients. The study will be a randomized trial to examine feasibility of an mHealth (mobile device) Fitbit Charge HR and cell phone application intervention to improve step counts and increase participants activity level as compared to no intervention. The Fitbit Charge Heart Rate (HR) monitors activity and the cell phone application provides encouragement notifications to half the subjects while the other half do not receive encouragements.
NCT01613287
This clinical investigation is a medical device trial to examine the safety and efficacy of TheraSorb® Ig flex adsorber treatment (as an add-on to conventional treatment) used exclusively with the LIFE 18® apheresis system for extracorporeal application for IA therapy (5 treatments) performed over 5 to 8 consecutive days in patients with Idiopathic Pulmonary Arterial Hypertension and WHO functional classification III.
NCT00626028
The primary purpose of this study is to compare the number of participants with reversible pulmonary hypertension (vasoreactivity) due to nitric oxide for inhalation and oxygen as compared to 100% oxygen.
NCT01645826
The purpose of this study is to determine if cardizem is effective in the treatment of nitric oxide non-responder pulmonary arterial hypertension.
NCT02790450
Actual studies suggest that a calcium activated chlorid channel (TMEM16A) may play a relevant role in the pathogenesis of pulmonary arterial hypertension (PAH). The inhibition of this channel led to pulmonary vasorelaxation in preclinical studies. Benzbromarone is a well known inhibitor of the TMEM16A channel and is used in patients with gout. In this pilot study the investigators plan to investigate if Benzbromarone has an acute effect on the pulmonary arteries in humans. This will be investigated within the frame of a right heart catheterization performed in patients with known PAH due to clinical reasons. The investigators hypothesize that the application of Benzbromarone leads to pulmonary vasodilation, which can be recognized by the decrease in pulmonary vascular resistance. In addition, the change in pulmonary and systemic arterial pressure, pulmonary arterial wedge pressure, heart rate and arterial oxygen saturation will be assessed. Due to clinical reasons patients will receive NO (15 ppm) during right heart catheterization. Hemodynamic changes upon NO and Benzbromarone may be compared.
NCT02108743
The purpose of this study is to determine if dynamic hyperinflation seen in patients with idiopathic pulmonary artery hypertension (iPAH) improves with albuterol therapy.
NCT01288651
Patients with idiopathic pulmonary arterial hypertension (IPAH) and iron deficiency were previously shown to have a decreased six-minute walking distance. Therefore the investigators hypothesized that intravenous iron administration would improve exercise capacity in iron deficient IPAH patients. 30 patients will be recruited for iron infusions. At baseline and after 12 weeks (endpoint)exercise test will be performed.
NCT00641836
Recent researches indicate that impairment of vascular and endothelial homeostasis plays a major role in the initiation and development of IPAH.We have recently reported the safety and feasibility data for autologous endothelial progenitor cells (EPCs) injection in patients with IPAH. Yet many questions remain unanswered: what is the ideal quantity of EPCs for therapy, the duration of the therapeutic effect, and moreover, the potential toxicity of such therapy. To help answer these questions, we designed the one year follow-up to investigate the safety and efficacy of autologous EPCs injection in patients with IPAH.
NCT00257413
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 infusion of autologous EPCs in patients with idiopathic pulmonary arterial hypertension.