Endothelial Function and Progenitor Cells in Acute Ischemic Stroke (EPCAS)
研究概览
地位
条件
详细说明
Endothelial dysfunction is a key component of atherosclerosis which contributes to the development of cardio- and cerebrovascular diseases. However, endothelial dysfunction (ED) is not established as a risk factor for ischemic stroke.
As a novelty the proposed trial investigates the following variety of indirect markers of endothelial function in acute ischemic stroke:
circulating endothelial progenitor cells (EPC), endothelial microparticles (EMP), ENDOPAT (RH- PAT ratio) in two regards:
- time after ischemic events (< 48h, Days 4-5, day 7 or at discharge)
- etiological stroke subtypes
It is not known whether these parameters are changed after acute cerebral ischemia and could possibly serve as specific target for treatment.
研究类型
注册 (预期的)
联系人和位置
学习地点
-
-
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Berlin、德国、10117
- 招聘中
- Center for Stroke Research Berlin
-
接触：
- Thomas Liman, MD
- 电话号码：004930450560643
- 邮箱：thomas.liman@charite.de
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首席研究员：
- Thomas Liman, MD
-
-
参与标准
资格标准
适合学习的年龄
接受健康志愿者
有资格学习的性别
取样方法
研究人群
描述
Inclusion Criteria:
- Patients with first ever ischemic stroke
- TIA, or transient symptoms with infarction (TSI)
- Age > or = 18 years old within 24 hours after onset
- Written informed consent to participate
- No evidence for dysphagia
Exclusion Criteria:
- Malignant hematopoietic disease (e.g. leukemia), severe systemic infections, severe immunological disease, renal or hepatic failure
- Pancreatitis, cholecystolithiasis, intestinal malabsorption
- Lactose intolerance
- Increased risk of aspiration
- Pregnancy
- Life expectancy less than 12 months
- Inability to give written informed consent
- Psychosis
- Alcohol dependency
- Abuse of illegal drugs
学习计划
研究是如何设计的？
设计细节
队列和干预
团体/队列 |
|---|
|
first-ever ischemic stroke
first-ever ischemic stroke according to the WHO definition
|
研究衡量的是什么？
主要结果指标
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
Levels of cEPC
大体时间：<48h, day 4-5, discharge or day 7
|
Levels of cEPC (CD34+/CD133+/VEGF2R+/CD31) in % of mononuclear cells using flow cytometry with respect to stroke subtypes.
|
<48h, day 4-5, discharge or day 7
|
次要结果测量
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
Levels of EMP
大体时间：<48h, day 4-5, day 7 or discharge
|
Levels of EMP (Annexin V+/CD31+; CD62E+) using flow cytometry with respect to stroke subtypes.
|
<48h, day 4-5, day 7 or discharge
|
|
ENDOPAT
大体时间：<48h, day 4-5,day 7
|
Digital pulse volume change (with RH PAT as non invasive measurement (PAT-ratio; ENDOPAT, Itamar Medical Ltd.) for non-invasive, peripheral endothelial function
|
<48h, day 4-5,day 7
|
合作者和调查者
调查人员
- 首席研究员：Matthias Endres, MD、Center for Stroke Research Berlin
研究记录日期
研究主要日期
学习开始
初级完成 (预期的)
研究完成 (预期的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (估计)
研究记录更新
最后更新发布 (估计)
上次提交的符合 QC 标准的更新
最后验证
更多信息
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