Bedside Testing of CYP2C19 Gene for Treatment of Patients With PCI With Antiplatelet Therapy
2016年1月20日 更新者:Imam Abdulrahman Bin Faisal University
Bedside Testing of the CYP2C19 Gene to Asses Effectiveness of Clopidogrel in Coronary Artery Disease Patients Treated With Percutaneous Coronary Intervention : Individualized Antiplatelet Drugs Treatment to Improve Prognosis
Clopidogrel is crucial as antiplatelet treatment in patients undergoing percutaneous coronary intervention (PCI) with stent implantation and during one year after PCI, to prevent atherothrombotic complications.
However, clopidogrel is ineffective in certain patients due to genetic mutation in CYP2C19 gene a specific enzyme in the liver required for metabolism of clopidogrel.
Therefore, the purpose of this study is to test these patients genetically at bedside and prescribe an alternative drug such as Ticagrelor (90 mg twice daily) or prasugrel ( 10mg once daily or 5mg once daily if the patient older than 75 years or a body weight < 60kg) if they are carriers of the allele 2 or 3 of the mutated gene.
研究概览
地位
未知
详细说明
Clopidogrel is crucial as antiplatelet treatment in patients undergoing percutaneous coronary intervention (PCI) with stent implantation and during one year after PCI, to prevent atherothrombotic complications.
Clopidogrel is converted into its active metabolite by Cytochrome P2C19 (CYP2C19).
However 30 % of the Saudi population is carrier of the non functional CYP2C19*2 or *3 alleles having an impaired CYP2C19 capacity, resulting in decreased effectiveness of Clopidogrel.
These patients have a 42% higher risk for major cardiovascular events (MACE) compared to non carriers.
Further 50 % of the MACE occurs in the first 48 hours.
Therefore Ticagrelor (90 mg twice daily) or prasugrel ( 10mg once daily or 5mg once daily if the patient older than 75 years or a body weight < 60kg) whose actions are not dependent on conversion by CYP2C19 may be an alternative only in carriers of the non functional CYP2C19*2 or *3 alleles.
This might be cost effective and prevent patients form MACE. Therefore the objective of this study is to assess the efficacy, complication free survival, safety and cost-effectiveness of the CYP2C19 genotype guided antiplatelet treatment strategy, using clopidogrel or prasugrel (or Ticlid).
All participants will be followed for one year using follow up questionnaires.
研究类型
介入性
注册 (预期的)
1500
阶段
- 第四阶段
联系人和位置
本节提供了进行研究的人员的详细联系信息,以及有关进行该研究的地点的信息。
学习地点
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Al-Hasa、沙特阿拉伯、31982
- 招聘中
- Prince Sultan Cardiac Center
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副研究员:
- Abdullah Alabdulgader, MD
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Al-Khobar、沙特阿拉伯、31441
- 招聘中
- King Fahd University Hospital
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首席研究员:
- Abdullah M Al-Rubaish, MD
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副研究员:
- Fahd A Al-Muhanna, MD
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副研究员:
- Emmanuel Larbi, MD, PhD
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副研究员:
- Abdullah Al-Shehri, MD
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副研究员:
- Akram Al-Khadra, MD
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副研究员:
- Amein Al-Ali, PhD
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副研究员:
- Mohammed Al-Mansory, MD
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Dammam、沙特阿拉伯、31463
- 招聘中
- Saud Al-Babtain Cardiac Center
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副研究员:
- Hamid Al-Omran, MD
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副研究员:
- Mustafa Al-Refaei, MD
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副研究员:
- Najeeb Abdulhamid, MD
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副研究员:
- Shukry Mirza, MD
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副研究员:
- Yousef Alsabeet, MD
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Dammam、沙特阿拉伯、31932
- 招聘中
- King Fahd Military Medical Complex
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副研究员:
- Khalid Al-Fraiedi, MD
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参与标准
研究人员寻找符合特定描述的人,称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。
资格标准
适合学习的年龄
18年 至 70年 (成人、年长者)
接受健康志愿者
不
有资格学习的性别
全部
描述
Male & female age 18-70 years
Inclusion Criteria:
- Patient presents with acute myocardial infarction of more than 30 minutes and less than 12 hours
- Patient eligible for PCI
Exclusion Criteria:
- Life expectancy of less than one year
- Previously Known genotype
- Receiving chemotherapy for malignancy
- On dialysis or receiving immunosuppressive therapy or have autoimmune disease
- Hepatic impairment
- History of bleeding diathesis
- Receiving vitamin K antagonist therapy
- Confirmed hypertension
- Out of normal range platelet count
- History of major surgery
- Severe trauma or fracture
- Pregnancy and lactation
- Concomitant use of simvastatin, cytochrome P450 3A4 inhibitors or inducers
- Hypersensitivity to clopidogrel or ticagrelor or prasugrel
学习计划
本节提供研究计划的详细信息,包括研究的设计方式和研究的衡量标准。
研究是如何设计的?
设计细节
- 主要用途:治疗
- 分配:非随机化
- 介入模型:并行分配
- 屏蔽:无(打开标签)
武器和干预
参与者组/臂 |
干预/治疗 |
|---|---|
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有源比较器:Clopidogrel
CYP2C19 genotyping will be carried out at the end of the study period.
Clopidogrel will be used for treatment for one year according to local protocol.
Patients will receive clopidogrel 75 mg per day.
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Genotyping will be carried out using Spartan genotyping System on all intervention group and those patients who do not carry the CYP2C19 allele 2 or 3 will be given clopidogrel (75 mg per day) while all patients who carry the CYP2C19 allele 2 or 3 will be prescribed Ticagrelor (90 mg twice daily) or prasugrel ( 10mg once daily or 5mg once daily if the patient older than 75 years or a body weight < 60kg) according to local protocol.
其他名称:
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实验性的:Ticagrelor or prasugrel
Ticagrelor (90 mg twice daily) or prasugrel ( 10mg once daily or 5mg once daily if the patient older than 75 years or a body weight < 60kg) according to local protocol.
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ticagrelor (90 mg twice daily) or prasugrel ( 10mg once daily or 5mg once daily if the patient older than 75 years or a body weight < 60kg) according to local protocol.
其他名称:
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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 |
|---|---|---|
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cardiovascular event
大体时间:1 year
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The primary end point is the number of patients who develop adverse major cardiovascular event which include recurrent myocardial infarction, non-fatal stroke, cardiovascular mortality, severe ischemia, major bleeding at 30days after PCI.
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1 year
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次要结果测量
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
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Mortality
大体时间:30 days and 1 year
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Secondary efficacy endpoints are the number of patients who either died , died from cardiovascular death, from cerebrovascular death, developed recurrent MI, stent thrombosis, underwent urgent target vessel revascularization, developed stroke or combination of above
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30 days and 1 year
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合作者和调查者
在这里您可以找到参与这项研究的人员和组织。
调查人员
- 首席研究员:Abdullah M Al-Rubaish, MD、Imam Abdulrahman bin Faisal University
- 研究主任:Amein K Al-Ali, PhD、Imam Abdulrahman bin Faisal University
出版物和有用的链接
负责输入研究信息的人员自愿提供这些出版物。这些可能与研究有关。
研究记录日期
这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查,以确保它们在发布到公共网站之前符合特定的质量控制标准。
研究主要日期
学习开始
2013年3月1日
初级完成 (预期的)
2016年1月1日
研究完成 (预期的)
2016年3月1日
研究注册日期
首次提交
2013年3月19日
首先提交符合 QC 标准的
2013年4月2日
首次发布 (估计)
2013年4月4日
研究记录更新
最后更新发布 (估计)
2016年1月22日
上次提交的符合 QC 标准的更新
2016年1月20日
最后验证
2016年1月1日
更多信息
与本研究相关的术语
其他相关的 MeSH 术语
其他研究编号
- STGUD005
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