European Study Evaluating the EMBLOK Cerebral Embolic Protection System During Transcatheter Aortic Valve Replacement (TAVR)
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 28
- 试验地点
- 4
- 主要终点
- Performance Endpoint
研究概览
简要总结
The primary objective is to evaluate the performance and the treatment effect of the use of the Emblok embolic protection system use during transcatheter aortic valve replacement with respect to procedure-related cerebral embolic burden as determined by DW-MRI.
详细描述
The enrollment of up to thirty subjects with severe native aortic valve stenosis who meet clinically approved indications for transcatheter aortic valve replacement. The primary objective evaluates performance and treatment effect of the use of the EMBLOK. A secondary objective of this study is to analyze the safety profile and the type of captured debris from the Emblok filter after TAVR. Due to the small sample size, the study is not powered to detect a reduction in actual stroke rates. However, the potential risk of stroke will be assessed based on neurological evaluations pre and post procedure. In addition, silent ischemic damage and cerebral embolic burden will be assessed using DW MRI studies.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Other
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 90 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Subject is between 18 and 90 years of age.Subject is scheduled to undergo transcatheter aortic valve replacement (TAVR) procedure on a native aortic valve and is qualified based on pre-operative trans-thoracic echocardiogram (TTE). Subject anatomy is compatible with correct device positioning with: Iliofemoral access compatible with a 12 French arterial access system for the EMBLOK catheter (> 4 mm vessel diameter). Ascending aorta length greater than or equal to 9 cm. Ascending aorta/aortic arch diameter less than or equal to 35mm.
- •Female subjects of child bearing potential must have a negative pregnancy test within 48 hours prior to the index study procedure.Subject agrees to comply with all study required visits. Subject or subject's legal representative completes written Informed Consent.
排除标准
- •Subject requires an emergent procedure. Contraindications to MRI including: Subjects with any non-MRI compatible implantable temporary or permanent pacemaker or defibrillator, metal implants in field of view, metallic fragments, clips, or devices in the brain or eye before TAVI procedure, claustrophobia, planned implantation of non-MRI compatible pacemaker or implantable cardioverter defibrillator within 30 days after TAVR.
- •Subject has experienced a myocardial infarction within 30 days of the planned index procedure.
- •Subject has renal insufficiency, defined as a creatinine level > 2.5 mg/dl at the time of treatment.
- •Subject has documented history of stroke or TIA within prior 3 months. Subject has an ejection fraction of 30% or less. Subject has a history of intolerance, allergic reaction or contraindication to any of the study medications, including heparin, aspirin, clopidogrel or a sensitivity to contrast media or anesthesia which cannot be adequately pre-treated.
- •Subject has known allergy to any materials used in the EMBLOK device or allergy to intravascular contrast agents that cannot be pre-medicated.
- •Subject has active endocarditis or an ongoing systemic infection defined as fever within temperature > 38° C and/ or WBC > 15,000 IU.
- •Subjects undergoing therapeutic thrombolysis. Subject has history of bleeding diathesis or a major coagulopathy. Subject is known or suspected to be pregnant, or is lactating. Subject is currently participating in another drug or device clinical study, or has other medical illnesses that may cause the subject to be non-compliant with the protocol or confound the data interpretation.
研究组 & 干预措施
TAVR + Embolic protection
subjects with severe native aortic valve stenosis who meet the commercially approved indications for transcatheter aortic valve replacement
干预措施: Transcatheter Aortic Valve Replacement (TAVR) (Procedure)
TAVR + Embolic protection
subjects with severe native aortic valve stenosis who meet the commercially approved indications for transcatheter aortic valve replacement
干预措施: EMBLOK filter (Device)
结局指标
主要结局
Performance Endpoint
时间窗: Day 1 to post procedure
successful insertion, placement and removal of the EMBLOK system
次要结局
- Safety Endpoint (Rate of MACCE)(30 days)