阿尔茨海默病的临床重要差异最小:快速审查
Ryan T Muir1,2, Michael D Hill1,2, Sandra E Black3,4
1Department of Clinical Neurosciences and Department of Community Health Sciences, Calgary, Alberta, Canada.
概括
这次审查确定了阿尔茨海默病 (AD) 试验终点的临床重要差异 (MCIDs) 的最小值. 根据疾病严重程度,MCIDs有所不同,当前的治疗效果可能无法达到这些值.
科学领域:
- 神经学 神经学
- 临床试验 临床试验
- 生物统计学 生物统计学
背景情况:
- 阿尔茨海默病 (AD) 临床试验需要标准化的终点来衡量治疗疗效.
- 最小临床重要差异 (MCID) 定义了患者认为有益的结果指标中最小的变化.
- 确定AD试验终点的MCID对于解释试验结果和指导治疗开发至关重要.
研究的目的:
- 进行快速的系统审查,以确定关键阿尔茨海默病 (AD) 试验终点的已确定的MCID.
- 为了合成不同阶段的AD的MCID值,包括轻度认知障碍 (MCI) 和轻度至中度/重度的AD.
- 将已识别的MCID与最近AD临床试验中观察到的平均治疗效果进行比较.
主要方法:
- 从开始到2023年6月4日,在EMBASE,MEDLINE和PubMed进行了系统的文献搜索.
- 两个独立的审查者选了搜索结果,并提取了针对AD试验终点的MCIDs数据.
- 确定的终点包括阿尔茨海默氏病评估尺度-认知子尺度 (ADAS-Cog),临床痴呆症评级尺度和框 (CDR-SB),综合阿尔茨海默氏病评级尺度 (iADRS) 和迷你精神状态检查 (MMSE).
主要成果:
- 综述中包括了10篇文章,为各种AD阶段和终点提供了MCID值.
- 随着疾病的严重程度,MCIDs通常会增加;例如,ADAS-Cog MCIDs在MCI中为+2到+3,在轻度AD中为+3.
- 在最近的抗粉样抗体试验中,平均治疗效果似乎低于先前为AD建立的MCID.
结论:
- 本综述巩固了现有的对常用的AD试验终点的MCID,为临床试验解释提供了基准.
- 这些发现表明,在AD试验中观察到的治疗效果和临床上有意义的改善之间存在潜在的差距.
- 未来的研究应优先考虑纳入患者和护理人员的观点,以获得更相关和更有意义的MCID和试验终点.
相关概念视频
Alzheimer's Disease: Overview
469
Alzheimer's Disease (AD) is a continually advancing neurodegenerative disorder, distinguished by escalating memory loss, cognitive dysfunction, and dementia. The disease unfolds in three stages: preclinical, mild cognitive impairment (MCI), and dementia. Its onset is insidious, and the progression gradual, with the cause not well explained by other disorders.
The clinical diagnosis of AD hinges on the presence of memory and other cognitive impairments. Biomarkers, such as changes in Aβ...
The clinical diagnosis of AD hinges on the presence of memory and other cognitive impairments. Biomarkers, such as changes in Aβ...
469
Alzheimer's Disease: Treatment
184
Alzheimer's Disease (AD), a neurodegenerative disorder, is pathologically identified by amyloid plaques and neurofibrillary tangles composed of tau protein. AD pharmacotherapy aims to manage cognitive symptoms, delay disease progression, and treat behavioral symptoms. The treatment is primarily symptomatic and palliative, with no definitive disease-modifying therapy available. Cholinesterase inhibitors, including donepezil (Aricept), rivastigmine (Exelon), and galantamine (Razadyne), are...
184


