Influence of patient characteristics on efficacy and safety of anti-amyloid monoclonal antibodies in Alzheimer’s disease: A systematic review and meta-analysis
Grace H. Shim , Edward C.Y. Lau , Andrew L.H. Huynh , Christine Y. Lu , Edwin C.K. Tan
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引用次数: 0
Abstract
Background
Lecanemab and donanemab are the first anti-amyloid monoclonal antibodies (mAbs) clinically available as disease-modifying therapies for Alzheimer’s disease (AD). However, it remains unclear whether their treatment effects differ across demographic, clinical, or genetic subgroups.
Objective
This systematic review aimed to explore how patient characteristics modify the efficacy, safety and humanistic outcomes of anti-amyloid mAbs lecanemab and donanemab in patients with early AD.
Methods
A systematic search of MEDLINE, Embase, Scopus, Web of Science, and Cochrane Library was conducted from database inception to July 30th, 2025, using a combination of keywords and Medical Subject Heading terms relating to lecanemab and donanemab. Meta-analyses were conducted for safety outcomes where sufficient data was available.
Results
Sixteen studies representing six randomised clinical trials (total N = 5633) were included. Both lecanemab and donanemab showed the greatest slowing of cognitive decline in White/Caucasian patients and apolipoprotein E4 (ApoE4) non-carriers. Amyloid-related imaging abnormalities with edema/effusion (ARIA-E) and microhemorrhages (ARIA-H) were more prevalent in ApoE4 carriers. The risk of ARIA-E was 2.19 times higher (95 %CI:1.91–2.50) and ARIA-H was 3.45 times higher (95 %CI:1.35–8.72) in ApoE4 carriers versus non-carriers. Statistically significant improvements in health-related quality of life were observed with lecanemab in ApoE4 heterozygous participants and in those aged 65–74 years.
Conclusions
The efficacy and safety of anti-amyloid mAbs in AD may differ based on patients’ demographic and genetic factors. These findings highlight the potential for personalised treatment strategies and inform national drug policies. Further research is needed to evaluate long-term outcomes and address under-studied patient populations.
Summary
The efficacy and safety of lecanemab and donanemab varied across patient subgroups, including age, sex, race/ethnicity and genetic factors such as ApoE4 genotype status. The risk of ARIA was higher in ApoE4 carriers, particularly the homozygous.
期刊介绍:
With the rise in average human life expectancy, the impact of ageing and age-related diseases on our society has become increasingly significant. Ageing research is now a focal point for numerous laboratories, encompassing leaders in genetics, molecular and cellular biology, biochemistry, and behavior. Ageing Research Reviews (ARR) serves as a cornerstone in this field, addressing emerging trends.
ARR aims to fill a substantial gap by providing critical reviews and viewpoints on evolving discoveries concerning the mechanisms of ageing and age-related diseases. The rapid progress in understanding the mechanisms controlling cellular proliferation, differentiation, and survival is unveiling new insights into the regulation of ageing. From telomerase to stem cells, and from energy to oxyradical metabolism, we are witnessing an exciting era in the multidisciplinary field of ageing research.
The journal explores the cellular and molecular foundations of interventions that extend lifespan, such as caloric restriction. It identifies the underpinnings of manipulations that extend lifespan, shedding light on novel approaches for preventing age-related diseases. ARR publishes articles on focused topics selected from the expansive field of ageing research, with a particular emphasis on the cellular and molecular mechanisms of the aging process. This includes age-related diseases like cancer, cardiovascular disease, diabetes, and neurodegenerative disorders. The journal also covers applications of basic ageing research to lifespan extension and disease prevention, offering a comprehensive platform for advancing our understanding of this critical field.