Cited by 81Alzheimer's disease research and treatmentsDementia and Cognitive Impairment ResearchNeuroinflammation and Neurodegeneration Mechanisms

Emerge and Engage topline results: Phase 3 studies of aducanumab in early Alzheimer’s disease: Developments in clinical trials and cognitive assessment

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Haeberlein, Samantha Budd, von Hehn, Christian, Tian, Ying, Chalkias, Spyros, Muralidharan, Kumar Kandadi, Chen, Tianle, Wu, Shuang, Skordos, LeAnne +8 more·2020·Alzheimer's & Dementia

Abstract

Abstract Background Aducanumab is a human monoclonal antibody that selectively targets aggregated forms of Aβ, including soluble oligomers and insoluble fibrils. EMERGE and ENGAGE are two 18‐month, randomized, double‐blind, placebo‐controlled, global Phase 3 studies with identical design that evaluated the efficacy and safety of aducanumab in patients aged 50–85 years with early Alzheimer’s disease (MCI due to AD or mild AD dementia). Method Key inclusion criteria included positive amyloid PET, MMSE score of 24–30, CDR Global score of 0.5, and an RBANS‐DMI score ≤85. During the 18‐month placebo‐controlled period, patients were randomized 1:1:1 to low‐dose aducanumab, high‐dose aducanumab, or placebo, administered via IV infusion every 4 weeks. The primary endpoint for EMERGE and ENGAGE was change from baseline at Week 78 on the CDR‐SB. Secondary endpoints included change from baseline on MMSE, ADAS‐Cog13, and ADCS‐ADL‐MCI. Result Following pre‐planned futility analysis, analysis of the data from the final database lock showed that EMERGE met its primary endpoint, based on the pre‐specified statistical analysis plan. Patients treated with high dose aducanumab showed a significant reduction of clinical decline from baseline in CDR‐SB scores at 78 weeks (22% versus placebo, P = 0.01). ENGAGE did not meet its primary endpoint. However, data from patients in ENGAGE who achieved sufficient exposure to high dose aducanumab supported the findings of EMERGE. Conclusion EMERGE met its primary endpoint, based on the pre‐specified statistical analysis plan. Data from a subset of patients in ENGAGE support the results of EMERGE. The safety and tolerability profile of aducanumab in EMERGE and ENGAGE was consistent with previous studies of aducanumab.

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Crossref · 10.1002/alz.047259

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  • The approval of the first mAb against AD was given without a definitively proven clinical benefit based on its effects on AD biomarkers.

    “The approval of the first mAb against AD was given without a definitively proven clinical benefit based on its effects on AD biomarkers [47,62,64,65].”
  • Aducanumab received accelerated approval by the FDA for the treatment of mild cognitive impairment due to AD and mild AD dementia on 7 June 2021.

    “This led to the accelerated approval of Aducanumab by the FDA for the treatment of mild cognitive impairment due to AD and mild AD dementia on 7 June 2021.”

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Authors
Haeberlein, S. B., von Hehn, C., Tian, Y., Chalkias, S., Muralidharan, K. K., Chen, T., Wu, S., Skordos, L., Nisenbaum, L., Rajagovindan, R., Dent, G., Harrison, K., Nestorov, I., Zhu, Y., Mallinckrodt, C., & Sandrock, A.
Affiliations
  • Biogen (United States) (US)
  • Biogen Cambridge MA USA
Corresponding author
Haeberlein, Samantha Budd
Venue
Alzheimer's & Dementia
Publisher
Wiley
Published
2020-12
Volume
16
Issue
S9
ISSN
  • 1552-5260 (ISSN-L)
  • 1552-5279
OpenAlex
W3111988300
Cited by
81
References
0
Citations by year
2026: 4 · 2025: 10 · 2024: 6 · 2023: 7 · 2022: 31 · 2021: 16 · 2020: 6
FWCI
9.02
Type
journal article
Language
en
Open access
Locations
Alzheimer s & Dementia (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, early Alzheimer's disease

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