Boston Scientific Initiates Randomized Controlled Trial for the EkoSonic™ Endovascular System

MARLBOROUGH, Mass., Aug. 4, 2021 /PRNewswire/ -- Boston Scientific Corporation (NYSE: BSX) has commenced enrollment in the HI-PEITHO clinical trial, a collaborative research study with the Pulmonary Embolism Response Team (PERT) Consortium and the University Medical Center of the Johannes Gutenberg University of Mainz comparing use of the EkoSonic™ Endovascular System (EKOS) in combination with anticoagulation to anticoagulation alone for the treatment of acute, intermediate-high-risk pulmonary embolism (PE).

Each year nearly one million patients in the U.S. and Europe are affected by PE, a blood clot causing a blockage in one or more pulmonary arteries within the lungs, representing the leading cause of in-hospital death in the United States.^i,ii In intermediate-risk or high-risk cases of PE, the blockage may lead to a strain on the heart's ability to pump blood through the lungs and can be fatal. The current standard of care for PE is anticoagulation, though there are disparate guidelines to direct safe and effective treatment of patients with intermediate-high-risk PE.

"This first-of-its-kind international randomized controlled trial is intended to address current gaps in clinical guidelines and underscores our support of the highest level of research that may enable physicians to make data-based clinical decisions when choosing the best therapy for their patients with PE," said Michael R. Jaff, D.O., chief medical officer and vice president clinical affairs, technology and innovation, Peripheral Interventions, Boston Scientific.

The EKOS system uses ultrasound energy in combination with a thrombolytic drug to dissolve blood clots and restore blood flow in patients with PE and peripheral arterial occlusions. The ultrasound technology used by the EKOS system accelerates thrombolysis – the breakdown of the clot – minimizing the time it takes to treat a patient and lowering the necessary thrombolytic dose, which can result in optimized outcomes and a lower risk of bleeding.

"I am honored to be part of this study's global leadership whose mission is to bring forth guidelines-informing data that will ensure physicians can feel confident in the most appropriate strategy for treating patients with intermediate-high-risk PE," said Stavros Konstantinides M.D., Ph.D., FESC, FRCP (Glasg.), study co-lead principal investigator, professor and medical director, Center for Thrombosis and Hemostasis, University Medical Center of the Johannes Gutenberg University of Mainz, Germany.

The randomized HI-PEITHO trial will enroll up to 544 patients with confirmed acute, intermediate-high-risk PE at as many as 65 sites in the U.S. and Europe. The trial, which will follow patients for one year, will assess whether treatment with the EKOS system in combination with anticoagulation is associated with a significant reduction in adverse events compared to anticoagulation alone, within seven days of randomization. The composite primary endpoint is defined as PE-related mortality, cardiorespiratory decompensation or collapse and non-fatal symptomatic and objectively confirmed recurrence of PE.

"Optimal treatment of PE is still poorly understood and there is a need for a coordinated institutional approach to this complex, life-threatening problem," said Kenneth Rosenfield, M.D., study co-lead principal investigator and section head, Vascular Medicine and Intervention, Division of Cardiology, Massachusetts General Hospital, Boston. "The lead investigators of the trial are pleased to collaborate with the PERT Consortium, which is committed to evidence-driven therapy and is proud to take part in the HI-PEITHO study, aiming to advance the care of patients with PE."

To learn more about the HI-PEITHO clinical trial, please visit https://www.bostonscientific.com/hi-peitho.

About Boston Scientific

Boston Scientific transforms lives through innovative medical solutions that improve the health of patients around the world. As a global medical technology leader for more than 40 years, we advance science for life by providing a broad range of high performance solutions that address unmet patient needs and reduce the cost of healthcare. For more information, visit and connect on Twitter and Facebook.

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ⁱ Wood KE et al. Major pulmonary embolism: review of a pathophysiologic approach to the golden hour of hemodynamically significant pulmonary embolism. Chest 2002;121:877-905

ⁱⁱ Management strategies and determinants of outcome in acute major pulmonary embolism: results of a multicenter registry. Kasper et al., J Am Coll Cardiol, 1997; 30: 1165-1171

SOURCE Boston Scientific Corporation

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