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Review
. 2024 Jun;20(6):411-417.
doi: 10.1080/17425255.2024.2357637. Epub 2024 May 20.

Pharmacokinetic evaluation of donanemab for the treatment of Alzheimer's

Tanya Song  1 , Yunfei Wang  1 , Bret David Silverglate  1 , George T Grossberg  2
Affiliations
Review

Pharmacokinetic evaluation of donanemab for the treatment of Alzheimer's

Tanya Song et al. Expert Opin Drug Metab Toxicol. 2024 Jun.

Abstract

Introduction: Donanemab is a humanized monoclonal antibody that significantly reduces cerebral amyloid plaques in Alzheimer's Disease (AD). It can delay disease progression and cognitive decline, making it one of the most promising disease-modifying treatments in the current treatment landscape.

Areas covered: This paper covers the current literature available on pharmacokinetics, pharmacodynamics, safety, and tolerability of donanemab. Publications from PubMed and Google were reviewed. A summary of regulatory approvals and current clinical data is also provided.

Expert opinion/commentary: Donanemab as a therapy for AD has more effective disease-modifying effects compared to lecanemab. Donanemab appears generally well-tolerated; however, it may have higher rates of severe side effects, such as amyloid-related imaging abnormalities (ARIA), that could lead to death. Guidelines for frequency of MRI monitoring for ARIA/safety are pending but will be integral to determining its use. Despite some limitations, donanemab is expected to receive FDA approval, giving clinicians access to another disease-modifying drug. Overall, more data is needed about donanemab, especially relating to safety, efficacy, cost, and integration with other treatments, but its development signifies progress in AD treatment.

Keywords: Alzheimer’s disease; Amyloid; LY3002813; disease-modifying; donanemab; immunotherapy; pharmacokinetics.

Plain language summary

Alzheimer’s Disease (AD) is a brain disorder that severely impacts memory, behavior, and thinking. The most common treatments manage symptoms but do not slow disease progression or improve function. Accumulation of proteins called amyloid-beta plaques in the brain are one of the main causes of the disease. Donanemab is an antibody that helps the body remove these plaques. This review summarizes what is currently known about the safety of donanemab, how it works, and the extent to which it can help people with AD.Results suggest that donanemab significantly decreases the amount of plaques in the brain, delays disease progression, and improves cognition. Treatment can prevent reaccumulation of plaques for an extended period of time. There are some side effects associated with treatment, but they are generally manageable and resolve when the drug is stopped. In rare cases, more serious side effects were reported. These require careful monitoring and an evaluation of potential risk compared to benefit. Overall, current information on donanemab is extensive and shows promise. However, to help caregivers and people with AD make informed decisions on using the drug, further research is needed to fully explore donanemab’s safety, cost, and efficacy compared to other therapies in the same class.

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