Submassive and Massive Pulmonary Embolism Treatment With Ultrasound Accelerated Thrombolysis Therapy
Trial ID or NCT#
The purpose of this study is to determine if the EKOS EkoSonic® Endovascular Device when used in conjunction with recombinant tissue plasminogen activator (t-PA) as a treatment for acute PE will decrease the ratio of right ventricle (RV) to left ventricle (LV) diameter within 48 =/- 6 hours in participants with massive or submassive PE.
A Prospective, Single-Arm, Multi-Center Trial of EkoSonic® Endovascular System and Activase for Treatment of Acute Pulmonary Embolism (PE)
- - Computed tomography (CT) evidence of proximal PE (filling defect in at least one main or segmental pulmonary artery) - PE symptom duration less than or equal to (<=)14 days - Informed consent can be obtained from participant or Legally Authorized Representative (LAR) - Massive PE (syncope, systemic arterial hypotension, cardiogenic shock, or resuscitated cardiac arrest) or - Submassive PE (RV diameter-to-LV diameter greater than or equal to [>=] 0.9 on contrast-enhanced chest CT)
- - Stroke or transient ischemic attack (TIA), head trauma, or other active intracranial or intraspinal disease within one year - Recent (within one month) or active bleeding from a major organ - Hematocrit less than (<) 30 percent (%) - Platelets < 100 thousand/microliter (mcL) - International Normalized Ratio (INR) greater than (>) 3 - Activated partial thromboplastin time (aPTT) >50 seconds on no anticoagulants - Major surgery within seven days of screening for study enrollment - Serum creatinine >2 milligrams/deciliter (mg/dL) - Clinician deems high-risk for catastrophic bleeding - History of heparin-induced thrombocytopenia (HIT) - Pregnancy - Catheter-based pharmacomechanical treatment for pulmonary embolism within 3 days of study enrollment - Systolic blood pressure less than 80 mm Hg despite vasopressor or inotropic support - Cardiac arrest (including pulseless electrical activity and asystole) requiring active cardiopulmonary resuscitation (CPR) - Evidence of irreversible neurological compromise - Life expectancy <30 days - Use of thrombolytics or glycoprotein IIb/IIIa antagonists within 3 days prior to inclusion in the study - Previous enrollment in the SEATTLE study
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William Kuo, MD
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