Comparison of Prasugrel and Clopidogrel in Very Elderly and Non-Elderly Patients With Stable Coronary Artery Disease (GENERATIONS)
2012年9月27日 更新者：Eli Lilly and Company
A Pharmacokinetic and Pharmacodynamic Comparison of Prasugrel and Clopidogrel in Very Elderly Versus Non-Elderly Aspirin-Treated Subjects With Stable Coronary Artery Disease
The 5-milligram (mg) maintenance dose (MD) of prasugrel in very elderly patients with coronary artery disease produces a pharmacodynamic response within the same therapeutic range as 10-mg MD in non-elderly patients.
研究概览
研究类型
介入性
注册 (实际的)
155
阶段
- 阶段1
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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Dublin、爱尔兰、9
- For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
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Lund、瑞典、22185
- For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
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Malmo、瑞典、20502
- For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
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Florida
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Jacksonville、Florida、美国、32209
- For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
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Maryland
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Baltimore、Maryland、美国、21215
- For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
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Ohio
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Cincinnati、Ohio、美国、45212
- For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
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Nieuwegein、荷兰、3435 CM
- For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
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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
45年 及以上 (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
Inclusion Criteria:
- Participants (Either: at least 45 years of age, but less than 65 years of age OR 75 years of age or older) with a history of stable coronary artery disease who are not currently indicated for treatment with a thienopyridine (that is, prasugrel, clopidogrel, or ticlopidine)
- Provision of written informed consent
- Body weight greater than or equal to 60 kilograms (kg)
- For women of child-bearing potential only (that is, women who are not surgically or chemically sterilised and who are between menarche and 1 year post menopause), test negative for pregnancy (based on a urine or serum pregnancy test to be performed before randomisation) and agree to use a reliable method of birth control during the study
Exclusion Criteria:
- Unstable coronary artery disease
- Myocardial Infarction (MI) within the previous 30 days
- Percutaneous Coronary Intervention (PCI) or Coronary Artery Bypass Graft Surgery (CABG) within the previous 90 days
- History of refractory ventricular arrhythmias within the last 6 months; an implanted defibrillator device; congestive heart failure within 6 months prior to screening; major surgery, or severe trauma, fracture or organ biopsy within 3 months prior to enrollment
- Any planned surgical procedure or any coronary revascularisation (surgical or percutaneous) planned within 60 days following randomisation
- Any known contraindication to treatment with an antiplatelet agent
- Significant hypertension at the time of screening or randomisation
- Clinically significant out-of-range values for platelet count or haemoglobin at screening, in the investigator's opinion, or results of clinical laboratory tests at the time of screening that are judged to be clinically significant for the study population, as determined by the investigator
- Prior history or presence of significant bleeding disorders, abnormal bleeding tendency, or personal history of coagulation or bleeding disorders
- Prior history or clinical suspicion of cerebral vascular malformations, intracranial neoplasm, Transient Ischemic Attack (TIA) or stroke
- Prior history of thrombocytopenia or thrombocytosis
- Use of antiplatelet agents (besides aspirin) within 10 days prior to screening; the use (or planned use) of heparin, oral anticoagulants, or fibrinolytic agents within 30 days of screening; or participants receiving daily treatment with nonsteroidal anti-inflammatory drugs (NSAIDS) or cyclooxygenase-2 (COX-2) inhibitors that cannot be discontinued for the duration of the study
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：随机化
- 介入模型：交叉作业
- 屏蔽：四人间
武器和干预
参与者组/臂 |
干预/治疗 |
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有源比较器：10 毫克普拉格雷
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administered orally, daily for 12 days
其他名称：
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有源比较器：75 毫克氯吡格雷
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口服给药，每天一次，持续 12 天
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实验性的：5 milligrams (mg) prasugrel
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administered orally, daily for 12 days
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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Change in Maximum Platelet Aggregation (MPA) to 20 Micromoles (μM) Adenosine Diphosphate (ADP) as Measured by Light Transmission Aggregometry (LTA) From Baseline to 12 Days of Therapy in the First Treatment Period
大体时间：Baseline, 12 days
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Maximum Platelet Aggregation (MPA) to 20 μM ADP was assessed by light transmission aggregometry (LTA), an assay that measures platelet aggregation by determining the amount of light transmitted through a cuvette containing the platelet-rich plasma stimulated with a platelet activator, such as ADP, relative to platelet-poor plasma (100% light transmittance).
Lower MPA values reflect stronger platelet inhibition, whereas higher MPA values reflect weaker inhibition.
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Baseline, 12 days
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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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Change in Vasodilator-associated Stimulated Phosphoprotein (VASP) From Baseline to 12 Days of Therapy
大体时间：Baseline, Day 12
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Vasodilator-associated stimulated phosphoprotein (VASP) phosphorylation levels, expressed as the platelet reactivity index (PRI), reflect the degree of thienopyridine-mediated P2Y12 receptor inhibition.
A lower PRI reflects stronger inhibition of P2Y12, whereas a higher PRI reflects weaker inhibition of P2Y12.
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Baseline, Day 12
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Change in VerifyNow P2Y12 Reaction Units (PRU) From Baseline to 12 Days of Therapy
大体时间：Baseline, Day 12
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The Accumetrics VerifyNow® P2Y12 assay measures platelet aggregation in whole blood and is reported in P2Y12 reaction units (PRU).
PRU report the extent of P2Y12 receptor-mediated platelet aggregation calculated as a function of the rate and extent of platelet aggregation in the presence of adenosine phosphate ADP.
A lower PRU reflects stronger inhibition of P2Y12, whereas a higher PRU reflects weaker inhibition of P2Y12.
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Baseline, Day 12
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Active Metabolite Blood Levels to Drug Exposure as Measured by Pharmacokinetics (PK) Through 4 Hours After Dosing
大体时间：Baseline up to 4 hours post-dose
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A descriptive pharmacokinetic-pharmacodynamic (PK-PD) analysis comparing prasugrel and clopidogrel active metabolite exposures to MPA in response to 20 µM ADP (by LTA) was conducted as originally intended; however, the graphic output from that analysis is not possible here.
Therefore, the PK portion is presented here as AUC and the PD portion is presented in Secondary Outcome Measure #5.
AUC was calculated through the last scheduled sampling time of 4 hours [AUC (0-4)] or through the sampling time of the last quantifiable concentration prior to 4 hours.
AUC values were denoted AUC(0-tlast) in both instances.
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Baseline up to 4 hours post-dose
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Change From Baseline in Maximum Platelet Aggregation (MPA) as Measured by Light Transmission Aggregometry (LTA) From Baseline at Day 12 of Therapy
大体时间：Baseline, Day 12
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Maximum Platelet Aggregation (MPA) to 20 μM ADP was assessed by light transmission aggregometry (LTA), an assay that measures platelet aggregation by determining the amount of light transmitted through a cuvette containing the platelet-rich plasma stimulated with a platelet activator, such as ADP, relative to platelet-poor plasma (100% light transmittance).
A lower MPA reflects stronger platelet inhibition, whereas a higher MPA reflects weaker inhibition.
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Baseline, Day 12
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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。
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
2010年3月1日
初级完成 (实际的)
2011年10月1日
研究完成 (实际的)
2011年10月1日
研究注册日期
首次提交
2010年4月19日
首先提交符合 QC 标准的
2010年4月19日
首次发布 (估计)
2010年4月21日
研究记录更新
最后更新发布 (估计)
2012年10月26日
上次提交的符合 QC 标准的更新
2012年9月27日
最后验证
2012年9月1日
更多信息
此信息直接从 clinicaltrials.gov 网站检索，没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求，请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改，我们的网站上也会自动更新.