Cited by 66Alzheimer's disease research and treatmentsDementia and Cognitive Impairment ResearchNeuroinflammation and Neurodegeneration Mechanisms

A Primer on the Evolution of Aducanumab: The First Antibody Approved for Treatment of Alzheimer’s Disease

Mukhopadhyay, Sanchari, Banerjee, Debanjan·2021·Journal of Alzheimer s Disease

Abstract

Alzheimer's disease (AD) is the most common form of dementia with global burden projected to triple by 2050. It incurs significant biopsychosocial burden worldwide with limited treatment options. Aducanumab is the first monoclonal antibody recently approved by the US-FDA for mild AD through the accelerated approval pathway. It is the first molecule to be approved for AD since 2003 and carries with it a therapeutic promise for the future. As the definition of AD has evolved from a pathological entity to a Clinico-biological construct over the years, the amyloid-β (Aβ) pathway has been increasingly implicated in its pathogenesis. The approval of Aducanumab is based on reduction of the Aβ load in the brain, which forms a surrogate marker for this pathway. The research populace has, however, been globally divided by skepticism and hope regarding this approval. Failure to meet clinical endpoints in the trials, alleged transparency issues, cost-effectiveness, potential adverse effects, need for regular monitoring, and critique of 'amyloid cascade hypothesis' itself are the main caveats concerning the antibody. With this controversy in background, this paper critically looks at antibody research in AD therapeutics, evidence, and evolution of Aducanumab as a drug and the potential clinical implications of its use in future. While the efficacy of this monoclonal antibody in AD stands as a test of time, based on the growing evidence it is vital to rethink and explore alternate pathways of pathogenesis (oxidative stress, neuroinflammation, cholesterol metabolism, vascular factors, etc.) as possible therapeutic targets that may help elucidate the enigma of this complex yet progressive and debilitating neurodegenerative disorder.

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Registry

Crossref · 10.3233/jad-215065

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68 of 68 references verified0 citation errors · 0 not checkable

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  • From 2003 to 2022, only one new drug, aducanumab, was controversially approved for use in AD.

    “From 2003 to 2022, only one new drug, aducanumab, was controversially approved for use in AD (Mukhopadhyay and Banerjee, 2021).”

    From Drug repurposing for Alzheimer’s disease from 2012–2022—a 10-year literature review (2023) · cites this paper as Mukhopadhyay and Banerjee, 2021

  • Aducanumab demonstrated inconsistent outcomes in its two main Phase III clinical trials, EMERGE and ENGAGE.

    “Aducanumab demonstrated inconsistent outcomes in its two main clinical trials, the Phase III EMERGE and ENGAGE research investigations.”
  • In the EMERGE trial, participants with AD at risk for cognitive deterioration showed a decrease in amyloid-beta plaques.

    “In the EMERGE experiment, when participants with AD were at risk for cognitive deterioration, there was a decrease in the amount of amyloid-beta plaques.”
  • After 79 weeks, lecanemab produced a lower total brain amyloid plaque burden than placebo in Study 201.

    “After 79 weeks, lecanemab was found to have a lower total brain amyloid plaque burden than a placebo (Study 201).”
  • The mean difference in brain amyloid between lecanemab and placebo was −73.5 centiloides and −0.31 SUVR units.

    “In particular, a mean difference of −73.5 centiloides and −0.31 standardized uptake value ratio (SUVR) units was found between the lecanemab and placebo treatment groups.”

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Authors
Mukhopadhyay, S., & Banerjee, D.
Affiliations
National Institute of Mental Health and Neurosciences (IN)
Corresponding author
Banerjee, Debanjan
Venue
Journal of Alzheimer s Disease
Published
2021-10-12
Volume
83
Issue
4
Pages
1537-1552
ISSN
  • 1387-2877 (ISSN-L)
  • 1875-8908
OpenAlex
W3191310544
Cited by
66
References
68
Citations by year
2026: 7 · 2025: 6 · 2024: 8 · 2023: 12 · 2022: 28 · 2021: 5
FWCI
1.77
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Alzheimer s Disease (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
aducanumab, Alzheimer's disease
MeSH terms
Alzheimer Disease, Brain, Humans, United States, United States Food and Drug Administration, Amyloid beta-Peptides, Drug Approval, Antibodies, Monoclonal, Humanized

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