A Study Versus E2020 10mg Followed by an Open-label Extension Phase to Explore the Safety of E2020 SR 23 mg in Japanese Subjects With Severe Alzheimer's Type Dementia
2014年8月5日 更新者:Eisai Inc.
A Randomized, Double Blind, Parallel-Group Comparison Study Versus E2020 10mg Followed by an Open-label Extension Phase to Explore the Safety of E2020 SR 23 mg in Japanese Subjects With Severe Alzheimer's Type Dementia
The purpose of this study is to compare 23 mg donepezil sustained release (SR) to the currently marketed formulation of 10 mg donepezil immediate release (IR) in patients with severe Alzheimer's disease.
研究概览
研究类型
介入性
注册 (实际的)
45
阶段
- 阶段2
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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Akita、日本
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Fukuoka、日本
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Saitama、日本
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Fukuoka
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Kitakyushu、Fukuoka、日本
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Gifu
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Mizunami、Gifu、日本
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Kanagawa
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Yokosuka、Kanagawa、日本
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Niigata
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Sanjo、Niigata、日本
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Okayama
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Kurashiki、Okayama、日本
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Shizuoka
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Fuji、Shizuoka、日本
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Tokyo
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Hachioji、Tokyo、日本
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Kodaira、Tokyo、日本
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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
50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
- Diagnostic evidence of probable Alzheimer's disease (AD) consistent with the Diagnostic and Statistical Manual for Mental Disorders-version IV (DSM-IV)
- Hachinski Ischemic Score
- Functional Assessment Staging (FAST) scale greater than or equal to 6 at Screening.
- Mini-Mental State Examination (MMSE) score of 1 to 12 at Screening
- Subjects who are on a stable Aricept- dose of 10 mg immediate release (IR), taken as a single, daily dose for 3 months prior to the Screening Visit
- Evidence consistent with Alzheimer's disease (AD) on any cranial image on magnetic resonance imaging (MRI) or computed tomography (CT) scan or etc. obtained within 24 months prior to the Screening Visit. Subjects who have any observations of dementia other than Alzheimer's type after the last image diagnosis should be reconfirmed.
- Age 50 years
- Written informed consent is to have been obtained from the subject (if possible) or from the subject's legal guardian or other representative
Exclusion Criteria
- Subjects with dementia other than Alzheimer's type
- Subjects with significant neurological or psychiatric disorders such as stroke, brain tumor, schizophrenia, epilepsy, normal pressure hydrocephalus, mental retardation, a history of head injury with loss of consciousness, or a history of brain surgery followed by persistent deficits
- Subjects with allergy to donepezil hydrochloride or piperidine derivatives
- Subjects with a cause of Alzheimer's disease (AD) which is supported by any laboratory tests such as Vitamin B12, folate levels, triiodothyronine, free triiodothyronine, thyroxine, thyroid stimulating hormone (TSH) or serologic test for syphilis
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:并行分配
- 屏蔽:四人间
武器和干预
参与者组/臂 |
干预/治疗 |
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实验性的:1个
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Patients will take study medication orally, once daily, for 2 weeks according to a double-dummy design in the double blind phase: 23 mg donepezil sustained release (SR) concurrently with placebo identical in appearance to the 10 mg donepezil immediate release (IR) formulation
10 mg donepezil immediate release (IR) concurrently with placebo identical in appearance to the 23 mg donepezil sustained release (SR) formulation.
All patients who complete the double blind phase will take 23 mg donepezil sustained release (SR) orally, once daily, for 52 weeks in the Open-label Extension phase.
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有源比较器:2个
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Patients will take study medication orally, once daily, for 2 weeks according to a double-dummy design in the double blind phase: 23 mg donepezil sustained release (SR) concurrently with placebo identical in appearance to the 10 mg donepezil immediate release (IR) formulation
10 mg donepezil immediate release (IR) concurrently with placebo identical in appearance to the 23 mg donepezil sustained release (SR) formulation.
All patients who complete the double blind phase will take 23 mg donepezil sustained release (SR) orally, once daily, for 52 weeks in the Open-label Extension phase.
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研究衡量的是什么?
主要结果指标
结果测量 |
大体时间 |
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Maximum Observed Plasma Concentration (Cmax) of E2020 on Visits 2 and 3
大体时间:Visit 2 [Day1] and Visit 3 [Day 15]
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Visit 2 [Day1] and Visit 3 [Day 15]
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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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Cmax of E2020 on Visits 2 and 3 According to Cytochrome P450 2D6 (CYP2D6) Phenotype Status
大体时间:Visit 2 [Day1] and Visit 3 [Day 15]
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All subjects were identified as Extensive Metabolizer [EM] or Intermediate Metabolizer [IM] predicted from their CYP2D6 phenotypes.
Ultra-rapid Metabolizer (UM) and Poor Metabolizer (PM) were not identified in any subject.
Since the analysis population i
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Visit 2 [Day1] and Visit 3 [Day 15]
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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。
赞助
调查人员
- 研究主任:Naoki Kubota、Neuroscience Clinical Development Section. JAC PCU. Eisai Co., Ltd.
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
2011年1月1日
初级完成 (实际的)
2012年4月1日
研究完成 (实际的)
2012年4月1日
研究注册日期
首次提交
2011年1月12日
首先提交符合 QC 标准的
2011年1月12日
首次发布 (估计)
2011年1月13日
研究记录更新
最后更新发布 (估计)
2014年8月8日
上次提交的符合 QC 标准的更新
2014年8月5日
最后验证
2014年8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.