期刊
ALZHEIMERS & DEMENTIA
卷 19, 期 2, 页码 708-720出版社
WILEY
DOI: 10.1002/alz.12773
关键词
Alzheimer's disease; clinical outcome assessments; clinical trial; cognition; preclinical; prodromal
Using the right outcome measure is crucial in clinical trials. However, there has been relatively less progress in the evolution of clinical outcome assessments (COAs) for the early stages of Alzheimer's disease (AD). This paper aims to provide guidance for the design and evaluation of COAs for use in early AD trials and proposes a framework for assessing clinically meaningful changes. Recommendations are also given to facilitate the implementation of more effective cognitive outcome measures in AD trials.
A crucial aspect of any clinical trial is using the right outcome measure to assess treatment efficacy. Compared to the rapidly evolved understanding and measurement of pathophysiology in preclinical and early symptomatic stages of Alzheimer's disease (AD), relatively less progress has been made in the evolution of clinical outcome assessments (COAs) for those stages. The current paper aims to provide a benchmark for the design and evaluation of COAs for use in early AD trials. We discuss lessons learned on capturing cognitive changes in predementia stages of AD, including challenges when validating novel COAs for those early stages and necessary evidence for their implementation in clinical trials. Moving forward, we propose a multi-step framework to advance the use of more effective COAs to assess clinically meaningful changes in early AD, which will hopefully contribute to the much-needed consensus around more appropriate outcome measures to assess clinical efficacy of putative treatments. Highlights We discuss lessons learned on capturing cognitive changes in predementia stages of AD. We propose a framework for the design and evaluation of performance based cognitive tests for use in early AD trials. We provide recommendations to facilitate the implementation of more effective cognitive outcome measures in AD trials.
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