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临床试验/NCT03832153
NCT03832153撤回不适用

Pan-Cardio-Genetics Clot Assessment in Acute Coronary Syndromes

Aristotle University Of Thessaloniki1 个研究点 分布在 1 个国家开始时间: 2019年1月20日最近更新:
适应症

试验速览

阶段
不适用
状态
撤回
试验地点
1
主要终点
Fold changes of differentially-expressed microRNA from peripheral blood from patients suffering from STEMI (measured in log2 scale)

研究概览

简要总结

Acute myocardial infarction with ST elevation (STEMI) is one of the leading causes of mortality. Although the presence of thrombus in STEMI patients has been linked to adverse outcomes, routine thrombus aspiration has not been proven effective. A potential explanation could be that patients with STEMI should be risk-stratified. Thus, a more personalized approach in treating these patients is stressfully required. This proposal aims to establish the required interdisciplinary infrastructure for developing a risk-stratification model by implementing clinical, laboratory and angiographic data with molecular knowledge obtained by using innovative technologies, such as data from nano/micro-Computed tomography and circulating microRNAs. Two hundred consecutive patients with STEMI undergoing thrombus aspiration will be enrolled in the study and will be followed-up for one year for Major Adverse Cardiac and Cerebrovascular events (MACCE). The proposed approach will shed light on the pathophysiological mechanisms and broaden the investigator's understanding of the complex cellular and molecular interactions in the STEMI setting that, along with clinical parameters, affect patient outcomes. Furthermore, it will enable the identification of certain circulating micro-RNAs as cardiovascular disease biomarkers and it will help clinicians to better stratify the cardiovascular and cerebrovascular risk of patients with STEMI. As part of the work, important characteristics of aspirated thrombi will be assessed for the first time (such as volume, density and shape) and will be linked to patient outcomes. All this information will be incorporated into one in-vitro model, which will be developed using bioprinting and microfluidics methodologies. The in-vitro model will facilitate: (i) the in-depth exploration of the pathophysiological mechanisms in patients with STEMI; and (ii) the therapeutic optimization of innovative nanocarriers/nanomedicines with thrombolytic efficacy. Clearly, the study improves personalized cardiovascular medicine approaches, by considering individual patient clinical assessment in a way that empowers the precision in diagnosis and therapy.

研究设计

研究类型
Observational
观察模型
Case Only
时间视角
Prospective

入排标准

年龄范围
18 Years 至 —(Adult, Older Adult)
性别
All
接受健康志愿者

入选标准

  • Patients with symptoms of myocardial ischemia lasting for more than 30 minutes
  • Definite ECG changes indicating STEMI
  • Patients undergoing primary PCI within 12 hours from symptom onset
  • Possibility to perform thrombus aspiration
  • Written informed consent

排除标准

  • Treatment with fibrinolytic therapy for qualifying index STEMI event
  • Patients with known intolerance to aspirin, ticagrelor or heparin
  • Patients with active internal bleeding
  • Patients with a recent history of intracranial hemorrhage

结局指标

主要结局

Fold changes of differentially-expressed microRNA from peripheral blood from patients suffering from STEMI (measured in log2 scale)

时间窗: 12 months

The expression profiles of the total number of microRNAs that exist in the peripheral blood of patients suffering from STEMI will be analyzed using Next Generation Sequencing (NGS). Blood samples collected from the patients will be used to extract microRNAs through the application of suitable microRNA isolation kit (miRNeasy Serum/Plasma kit). Following, the miRNA library construction will be prepared using commercially available reagents (QIAseq miRNA Library kit). The quantification of miRNAs will be done by the Qubit dsDNA HS assay kit in the Qubit fluorometer before the cDNA library generation.Statistical analyses of differentially expressed miRNAs will be carried out using EdgeR by the generalized linear model. Fold changes of differentially-expressed microRNA will be measured in log2 scale.

Volume of aspirated thrombus burden

时间窗: 12 months

The volume of aspirated thrombi will be quantified (in mm3) using micro-CT.

次要结局

  • Association between fold changes of microRNA expression and post-procedural Thrombolysis in Myocardial Infarction (TIMI) flow(12 months)
  • Association between fold changes of microRNAs expression and volume of aspirated thrombus.(12 months)
  • Association between fold changes of microRNA expression (measured in log2 scale) with distal embolization(12 months)
  • Association between fold changes of microRNA expression and Major Adverse Cardiovascular and Cerebrovascular Events (MACCE)(12 months)

研究者

申办方类型
Other
责任方
Principal Investigator
主要研究者

Karagiannidis Efstratios

Medical Doctor (resident physician, Cardiology Department, AHEPA University hospital), PhD candidate, Principal Investigator

Aristotle University Of Thessaloniki

研究点 (1)

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