Cited by 512Alzheimer's disease research and treatmentsDementia and Cognitive Impairment ResearchIntracerebral and Subarachnoid Hemorrhage Research

The DOI matches its Crossref record; 27 of the 27 references it cites were found in a registry or an index.

Amyloid-related imaging abnormalities in patients with Alzheimer's disease treated with bapineuzumab: a retrospective analysis

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Abstract

Background Amyloid-related imaging abnormalities (ARIA) have been reported in patients with Alzheimer's disease treated with bapineuzumab, a humanised monoclonal antibody against amyloid β. ARIA include MRI signal abnormalities suggestive of vasogenic oedema and sulcal effusions (ARIA-E) and microhaemorrhages and haemosiderin deposits (ARIA-H). Our aim was to investigate the incidence of ARIA during treatment with bapineuzumab, and evaluate associated risk factors.Methods Two neuroradiologists independently reviewed 2572 fluid-attenuated inversion recovery (FLAIR) MRI scans from 262 participants in two phase 2 studies of bapineuzumab and an open-label extension study. Readers were masked to the patient's treatment, APOE ɛ4 genotype, medical history, and demographics. Patients were included in risk analyses if they had no evidence of ARIA-E in their pre-treatment MRI, had received bapineuzumab, and had at least one MRI scan after treatment. We used Kaplan-Meier survival analysis to examine the distribution of incident ARIA-E from the start of bapineuzumab treatment and proportional hazards regression models to assess risk factors associated with ARIA.Findings 210 patients were included in the risk analyses. 36 patients (17%) developed ARIA-E during treatment with bapineuzumab; 15 of these ARIA-E cases (42%) had not been detected previously. 28 of these patients (78%) did not report associated symptoms. Adverse events, reported in eight symptomatic patients, included headache, confusion, and neuropsychiatric and gastrointestinal symptoms. Incident ARIA-H occurred in 17 of the patients with ARIA-E (47%), compared with seven of 177 (4%) patients without ARIA-E. 13 of the 15 patients in whom ARIA were detected in our study received additional treatment infusions while ARIA-E were present, without any associated symptoms. Occurrence of ARIA-E increased with bapineuzumab dose (hazard ratio [HR] 2·24 per 1 mg/kg increase in dose, 95% CI 1·40-3·62; p=0·0008) and presence of APOE ɛ4 alleles (HR 2·55 per allele, 95% CI 1·57-4·12; p=0·0001).Interpretation ARIA consist of a spectrum of imaging findings with variable clinical correlates, and some patients with ARIA-E remain asymptomatic even if treatment is continued. The increased risk of ARIA among APOE ɛ4 carriers, its association with high bapineuzumab dose, and its timecourse in relation to dosing suggest an association between ARIA and alterations in vascular amyloid burden.Funding Elan Corporation, Janssen Alzheimer Immunotherapy, Wyeth Pharmaceuticals, and Pfizer.

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Authors
Sperling, R., Salloway, S., Brooks, D. J., Tampieri, D., Barakos, J., Fox, N. C., Raskind, M., Sabbagh, M., Honig, L. S., Porsteinsson, A. P., Lieberburg, I., Arrighi, H. M., Morris, K. A., Lu, Y., Liu, E., Gregg, K. M., Brashear, H. R., Kinney, G. G., Black, R., & Grundman, M.
Affiliations
  • Brigham and Women's Hospital (US)
  • Butler Hospital (US)
  • Imperial College London (GB)
  • McGill University (CA)
  • California Pacific Medical Center (US)
  • UCL Queen Square Institute of Neurology (GB)
  • Columbia University (US)
  • University of Rochester Medicine (US)
  • University of California, San Francisco (US)
  • Janssen Alzheimer Immunotherapy Research & Development (United States) (US)
Corresponding author
Sperling, Reisa
Venue
The Lancet Neurology
Publisher
Elsevier BV
Published
2012-03
Volume
11
Issue
3
Pages
241-249
ISSN
1474-4422 (ISSN-L)
OpenAlex
W2122843800
Cited by
512
References
27
Citations by year
2026: 25 · 2025: 41 · 2024: 51 · 2023: 35 · 2022: 47 · 2021: 32 · 2020: 31 · 2019: 25 · 2018: 22 · 2017: 34 · 2016: 29 · 2015: 47 · 2014: 36 · 2013: 39 · 2012: 17
FWCI
29.81
Type
journal article
Language
en
Open access
Locations
  • The Lancet Neurology (publishedVersion)
  • PubMed (publishedVersion)
  • Amsterdam UMC (VU Amsterdam) - Institutional Repository (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • Digital Academic REpository of VU University Amsterdam (Vrije Universiteit Amsterdam) (submittedVersion)
  • UCL Discovery (University College London) (submittedVersion)
  • Pure Amsterdam UMC (submittedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
Funders
  • National Institute for Health and Care Research (NF-SI-0508-10123)
  • Elan
  • National Institute on Aging (K24AG035007, P50AG005134, P30AG062421)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Health Sciences › Medicine › Clinical Neurology › Intracerebral and Subarachnoid Hemorrhage Research
Keywords
amyloid-related imaging abnormalities, bapineuzumab, Alzheimer's disease, amyloid-beta, ARIA-E, ARIA-H, vasogenic edema, microhemorrhages, APOE ε4, dose-dependent risk, risk factors, FLAIR MRI, adverse events
MeSH terms
Aged, Aged, 80 and over, Alzheimer Disease, Brain, Female, Humans, Magnetic Resonance Imaging, Male, Middle Aged, Retrospective Studies, Risk Factors, Amyloid beta-Peptides, Neuroimaging, Antibodies, Monoclonal, Humanized

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