Clinical trials

TRESPECT is an international, multicenter, observational registry designed to describe the real-world use, effectiveness, and tolerability of parenteral treprostinil in adults with newly diagnosed pulmonary arterial hypertension (PAH). The registry will include patients who initiated subcutaneous or intravenous treprostinil within 12 months of PAH diagnosis. Both retrospective and prospective data will be collected from routine clinical care. Data will include patient characteristics, PAH treatment patterns, treprostinil dosing and route of administration, functional status, exercise capacity, biomarkers, echocardiographic and hemodynamic parameters, clinical events, and adverse events. Participants will be followed for at least 36 months or until a registry termination criterion is met. The registry is expected to enroll approximately 100 to 300 patients across specialized PAH centers in several European countries.

The goal of this clinical trial is to evaluate safety and tolerability of preservative-free parenteral treprostinil in paediatric patients with PAH (PH Group 1) who are below 18 years of age. The main question it aims to answer is: • if preservative-free parenteral treprostinil is safe and tolerable in the treatment of paediatric PAH in patients who are either prostacyclin-naïve or have been previously treated with commercially available parenteral treprostinil formulations. Participants will receive either subcutaneous (SC) or intravenous (IV) preservative-free treprostinil and will be observed for 5 months (20 weeks ± 1 week).

TripleTRE investigates the effect of initial triple combination therapy (oral endothelin receptor antagonist (ERA) + oral phosphodiesterase tyüe-5 inhibitor (PDE-5i) + parenteral treprostinil) compared to double oral therapy (oral ERA + oral PDE-5i) in pulmonary arterial hypertension (PAH) patients (group I) with intermediate-high risk or patients with intermediate-low risk with severe hemodynamic impairment at baseline in a prospective, randomized, unblinded setting with scope of increasing evidence for optimization of therapy concepts in PAH. The effect of initial triple combination therapy vs initial double oral therapy (standard of care (SoC)) will be measured by primary endpoint: (non)response to the assigned treatment.