中文(简体)
Albanian
Arabic
Armenian
Azerbaijani
Belarusian
Bengali
Bosnian
Catalan
Czech
Danish
Deutsch
Dutch
English
Estonian
Finnish
Français
Greek
Haitian Creole
Hebrew
Hindi
Hungarian
Icelandic
Indonesian
Irish
Italian
Japanese
Korean
Latvian
Lithuanian
Macedonian
Mongolian
Norwegian
Persian
Polish
Portuguese
Romanian
Russian
Serbian
Slovak
Slovenian
Spanish
Swahili
Swedish
Turkish
Ukrainian
Vietnamese
Български
中文(简体)
中文(繁體)

Antiplatelet Therapy Effect on Extracellular Vesicles in Acute Myocardial Infarction

只有注册用户可以翻译文章
登陆注册
链接已保存到剪贴板
状态已完成
赞助商
Medical University of Warsaw
合作者
Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)

关键词

抽象

Platelet activation and aggregation leads to myocardial infarction. Platelet P2Y12 receptors are essential for platelet activation. Antagonists against the P2Y12 receptor, which are established in secondary prevention of myocardial infarction, have unexplained anti-inflammatory effects. A novel P2Y12 receptor antagonist ticagrelor reduced infection-related mortality compared to clopidogrel, previous standard treatment for patients with myocardial infarction. Activated platelets release pro-inflammatory and procoagulant platelet extracellular vesicles. The investigators assume that decrease in infection-related mortality in patients treated with ticagrelor may be explained by greater inhibition of the release of platelet vesicles by ticagrelor, compared to clopidogrel. This study is expected to identify an additional mechanism of action of ticagrelor, which might contribute to the observed clinical benefits in patients treated with ticagrelor.

日期

最后验证: 12/31/2019
首次提交: 10/09/2016
提交的预估入学人数: 10/10/2016
首次发布: 10/11/2016
上次提交的更新: 01/24/2020
最近更新发布: 01/27/2020
实际学习开始日期: 12/29/2017
预计主要完成日期: 12/29/2018
预计完成日期: 12/29/2019

状况或疾病

Myocardial Infarction

干预/治疗

Drug: Clopidogrel

Drug: Ticagrelor

相 4

手臂组

干预/治疗
Active Comparator: Ticagrelor
Ticagrelor: oral, 180 mg once (loading dose) followed by 90 mg twice daily (maintenance dose)
Drug: Ticagrelor
Comparison of clopidogrel with another antiplatelet drug (ticagrelor)
Active Comparator: Clopidogrel
Clopidogrel: oral, 300 mg or 600 mg once (loading dose) followed by 75 mg once daily (maintenance dose)
Drug: Clopidogrel
Comparison of ticagrelor with another antiplatelet drug (clopidogrel)

资格标准

有资格学习的年龄 18 Years 至 18 Years
有资格学习的性别All
接受健康志愿者
标准

Inclusion Criteria:

- Age > 18 years

- Informed consent to participate in the study

- Percutaneous coronary intervention with stent implantation due to first ST-elevation myocardial infarction, or first non ST-elevation myocardial infarction

- Administration of a loading dose of clopidogrel

Exclusion Criteria:

- Known coagulopathy

- Known history of bleeding disorder

- Suspicion of intracranial haemorrhage

- Need for oral anticoagulation therapy

- Administration of glycoprotein (GP) IIb-IIIa antagonists

- Cardiogenic shock

- Severe chronic renal failure (estimated glomerular filtration rate [eGFR] < 30 mL/min)

- Severe liver insufficiency

- Chronic dyspnea

- Increased risk of bradycardia

- Autoimmune disease

- Infectious disease

- Neoplasms

- Pregnancy

- Study drug intolerance

- Co-administration of ticagrelor or clopidogrel with strong CYP3A4 inhibitors

- Participation in any previous study with ticagrelor or clopidogrel

结果

主要结果指标

1. Concentration of platelet extracellular vesicles [6 months following the beginning of antiplatelet therapy]

次要成果指标

1. Concentration of extracellular vesicles exposing fibrinogen [6 months following the beginning of antiplatelet therapy]

2. Concentration of extracellular vesicles exposing phosphatidylserine [6 months following the beginning of antiplatelet therapy]

3. Concentration of extracellular vesicles from endothelial cells [6 months following the beginning of antiplatelet therapy]

4. Concentration of extracellular vesicles from leukocytes [6 months following the beginning of antiplatelet therapy]

加入我们的脸书专页

科学支持的最完整的草药数据库

  • 支持55种语言
  • 科学支持的草药疗法
  • 通过图像识别草药
  • 交互式GPS地图-在位置标记草药(即将推出)
  • 阅读与您的搜索相关的科学出版物
  • 通过药效搜索药草
  • 组织您的兴趣并及时了解新闻研究,临床试验和专利

输入症状或疾病,并阅读可能有用的草药,输入草药并查看所使用的疾病和症状。
*所有信息均基于已发表的科学研究

Google Play badgeApp Store badge