Early Feasibility Study (EFS) of the Magenta Elevate™ Percutaneous Left Ventricular Assist Device (pLVAD) System in Patients Undergoing Non-emergent, High-risk Percutaneous Coronary Interventions
试验速览
- 阶段
- 不适用
- 状态
- 招募中
- 入组人数
- 15
- 试验地点
- 4
- 主要终点
- Rate of successful initiation and maintenance of hemodynamic support without Severe Hypotension
研究概览
简要总结
The Elevate™ EFS study is designed to evaluate the safety and feasibility of the Magenta Elevate™ percutaneous Left Ventricular Assist Device (pLVAD) System in patients undergoing non-emergent, high-risk percutaneous coronary interventions.
详细描述
The Elevate™ EFS is planned as a prospective, single-arm, interventional multi-center study enrolling up to 15 subjects.
The Magenta Elevate™ Pump is a catheter-mounted, self-expanding and retrievable pump, designed to unload the left ventricle by actively transporting blood from the left ventricle into the ascending aorta.
The Magenta Elevate™ is a temporary (≤ 6 hours) ventricular support device indicated for use during high-risk percutaneous coronary interventions (PCI) performed electively or urgently in hemodynamically stable patients, with severe coronary artery disease.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 84 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Non-emergent, percutaneous coronary intervention is planned in at least one stenotic lesion of a native coronary artery or bypass graft (de novo or restenosis).
- •Ejection fraction of ≤ 50% and at least one of the following:
- •Intervention on an unprotected left main coronary artery
- •Intervention on a last patent coronary conduit
- •Three-vessel disease (in case of left coronary artery dominance, the combination of a left anterior descending artery (LAD) lesion and a proximal left circumflex artery (LCX) lesion qualifies as three-vessel disease).
- •A heart team that includes a cardiac surgeon has determined that high-risk PCI is the appropriate therapeutic option.
- •Subject signed informed consent.
排除标准
- •Subject age < 18 or ≥ 85 years.
- •Cardiogenic shock (systolic blood pressure < 90 mmHg with evidence of end organ hypoperfusion, such as cool extremities or urine < 30 mL/hour); acutely decompensated pre-existing chronic heart failure; any use of inotropic or vasopressor in the previous 48 hours; or any use of mechanical circulatory support or an extracorporeal membrane oxygenation device within 14 days.
- •Hypertrophic cardiomyopathy, restrictive cardiomyopathy, or constrictive pericarditis
- •Evidence of left ventricular thrombus.
- •Previous aortic valve replacement or repair or a heart-constrictive device.
- •Aortic stenosis
- •Aortic regurgitation (≥ 2+ on a 4-grade scale by Transthoracic Echocardiography).
- •Aortic pathology, such as aortic aneurysms, dissection, extreme tortuosity, calcifications, or prior aortic surgery, that could pose undue additional risk to the placement of a pLVAD device.
- •Left ventricle rupture.
- •Cardiac tamponade.
- •Subject is scheduled for a staged PCI within 90 days of the index procedure
- •Subject has any condition or scheduled surgery that will require discontinuation of the antiplatelet and/or anticoagulant therapy within 90 days of the index procedure.
- •Chronic renal dysfunction (eGFR <30 mL/min/1.73 m²) and patients requiring renal replacement therapy with dialysis.
- •Known or suspected coagulopathy or abnormal coagulation parameters (defined as platelet count ≤ 100,000 or spontaneous INR ≥ 1.5 or known fibrinogen ≤ 1.5 g/L).
- •Infection of the proposed procedural access site or suspected systemic active infection, including any fever.
- •Active COVID-19 infection.
- •Stroke or transient ischemic attack within 6 months of enrollment.
- •Subject participation in another investigational drug or device trial (with the exception of post-market registries and observational studies, subject to Sponsor review and approval).
- •Female subjects who are pregnant or breast-feeding.
- •Any non-cardiac condition with a life expectancy <24 months
- •Subject has other medical, social, or psychological problems that, in the opinion of the Investigator, compromises the subject's ability to provide written informed consent and/or to comply with study procedures.
- •Subject belongs to a vulnerable population defined as individuals with mental disability, persons in nursing homes, children, impoverished persons, homeless persons, nomads, refugees, and those permanently incapable of providing informed consent. Vulnerable populations also may include members of a group with a hierarchical structure such as university students, subordinate hospital and laboratory personnel, employees of the Sponsor, members of the armed forces, and persons kept in detention.
结局指标
主要结局
Rate of successful initiation and maintenance of hemodynamic support without Severe Hypotension
时间窗: From device delivery through device removal (up to 6 hours)
Rate of successful initiation and maintenance of Elevate™ hemodynamic support without Severe Hypotension
Rate of Major Device-Related Adverse Events (MDRAE)
时间窗: From device delivery through device removal (up to 6 hours)
The rate of Elevate™ related Serious Adverse Events
次要结局
- Rate of Major Device-Related Adverse Events (MDRAE)(From hospital discharge through 30-days post device removal)
- Rate of Elevate™ Technical Success(From device delivery through device removal (up to 6 hours))
- Rate of Elevate™ Procedural Success(From device delivery through device removal (up to 6 hours))