Donanemab for Alzheimer’s Disease: A Systematic Review of Clinical Trials

Amyloid-β (Aβ) plaques and aggregated tau are two core mechanisms that contribute to the clinical deterioration of Alzheimer’s disease (AD). Recently, targeted-Aβ plaque reduction immunotherapies have been explored for their efficacy and safety as AD treatment. This systematic review critically revi...

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Main Authors: Areeba Rashad, Atta Rasool, Muhammad Shaheryar, Azza Sarfraz, Zouina Sarfraz, Karla Robles-Velasco, Ivan Cherrez-Ojeda
Format: Article
Language:English
Published: MDPI AG 2022-12-01
Series:Healthcare
Subjects:
Online Access:https://www.mdpi.com/2227-9032/11/1/32
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author Areeba Rashad
Atta Rasool
Muhammad Shaheryar
Azza Sarfraz
Zouina Sarfraz
Karla Robles-Velasco
Ivan Cherrez-Ojeda
author_facet Areeba Rashad
Atta Rasool
Muhammad Shaheryar
Azza Sarfraz
Zouina Sarfraz
Karla Robles-Velasco
Ivan Cherrez-Ojeda
author_sort Areeba Rashad
collection DOAJ
description Amyloid-β (Aβ) plaques and aggregated tau are two core mechanisms that contribute to the clinical deterioration of Alzheimer’s disease (AD). Recently, targeted-Aβ plaque reduction immunotherapies have been explored for their efficacy and safety as AD treatment. This systematic review critically reviews the latest evidence of Donanemab, a humanized antibody that targets the reduction in Aβ plaques, in AD patients. Comprehensive systematic search was conducted across PubMed/MEDLINE, CINAHL Plus, Web of Science, Cochrane, and Scopus. This study adhered to PRISMA Statement 2020 guidelines. Adult patients with Alzheimer’s disease being intervened with Donanemab compared to placebo or standard of care in the clinical trial setting were included. A total of 396 patients across four studies received either Donanemab or a placebo (228 and 168 participants, respectively). The Aβ-plaque reduction was found to be dependent upon baseline levels, such that lower baseline levels had complete amyloid clearance (<24.1 Centiloids). There was a slowing of overall tau levels accumulation as well as relatively reduced functional and cognitive decline noted on the Integrated Alzheimer’s Disease Rating Scale by 32% in the Donanemab arm. The safety of Donanemab was established with key adverse events related to Amyloid-Related Imaging Abnormalities (ARIA), ranging between 26.1 and 30.5% across the trials. There is preliminary support for delayed cognitive and functional decline with Donanemab among patients with mild-to-moderate AD. It remains unclear whether Donenameb extends therapeutic benefits that can modify and improve the clinical status of AD patients. Further trials can explore the interplay between Aβ-plaque reduction and toxic tau levels to derive meaningful clinical benefits in AD patients suffering from cognitive impairment.
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spelling doaj.art-56ff5dd8704b48e9bda2a9c763a8aa9c2023-11-16T15:24:36ZengMDPI AGHealthcare2227-90322022-12-011113210.3390/healthcare11010032Donanemab for Alzheimer’s Disease: A Systematic Review of Clinical TrialsAreeba Rashad0Atta Rasool1Muhammad Shaheryar2Azza Sarfraz3Zouina Sarfraz4Karla Robles-Velasco5Ivan Cherrez-Ojeda6Department of Research and Publications, Fatima Jinnah Medical University, Lahore 54000, PakistanDepartment of Research, Services Institute of Medical Sciences, Lahore 54000, PakistanDepartment of Research, Rawal Institute of Health Sciences, Islamabad 45550, PakistanDepartment of Pediatrics and Child Health, The Aga Khan University, Karachi 74800, PakistanDepartment of Research and Publications, Fatima Jinnah Medical University, Lahore 54000, PakistanDepartment of Allergy, Immunology & Pulmonary Medicine, Universidad Espíritu Santo, Samborondón 092301, EcuadorDepartment of Allergy, Immunology & Pulmonary Medicine, Universidad Espíritu Santo, Samborondón 092301, EcuadorAmyloid-β (Aβ) plaques and aggregated tau are two core mechanisms that contribute to the clinical deterioration of Alzheimer’s disease (AD). Recently, targeted-Aβ plaque reduction immunotherapies have been explored for their efficacy and safety as AD treatment. This systematic review critically reviews the latest evidence of Donanemab, a humanized antibody that targets the reduction in Aβ plaques, in AD patients. Comprehensive systematic search was conducted across PubMed/MEDLINE, CINAHL Plus, Web of Science, Cochrane, and Scopus. This study adhered to PRISMA Statement 2020 guidelines. Adult patients with Alzheimer’s disease being intervened with Donanemab compared to placebo or standard of care in the clinical trial setting were included. A total of 396 patients across four studies received either Donanemab or a placebo (228 and 168 participants, respectively). The Aβ-plaque reduction was found to be dependent upon baseline levels, such that lower baseline levels had complete amyloid clearance (<24.1 Centiloids). There was a slowing of overall tau levels accumulation as well as relatively reduced functional and cognitive decline noted on the Integrated Alzheimer’s Disease Rating Scale by 32% in the Donanemab arm. The safety of Donanemab was established with key adverse events related to Amyloid-Related Imaging Abnormalities (ARIA), ranging between 26.1 and 30.5% across the trials. There is preliminary support for delayed cognitive and functional decline with Donanemab among patients with mild-to-moderate AD. It remains unclear whether Donenameb extends therapeutic benefits that can modify and improve the clinical status of AD patients. Further trials can explore the interplay between Aβ-plaque reduction and toxic tau levels to derive meaningful clinical benefits in AD patients suffering from cognitive impairment.https://www.mdpi.com/2227-9032/11/1/32Alzheimer’s diseasedonanemabplaquecognitionelderly care
spellingShingle Areeba Rashad
Atta Rasool
Muhammad Shaheryar
Azza Sarfraz
Zouina Sarfraz
Karla Robles-Velasco
Ivan Cherrez-Ojeda
Donanemab for Alzheimer’s Disease: A Systematic Review of Clinical Trials
Healthcare
Alzheimer’s disease
donanemab
plaque
cognition
elderly care
title Donanemab for Alzheimer’s Disease: A Systematic Review of Clinical Trials
title_full Donanemab for Alzheimer’s Disease: A Systematic Review of Clinical Trials
title_fullStr Donanemab for Alzheimer’s Disease: A Systematic Review of Clinical Trials
title_full_unstemmed Donanemab for Alzheimer’s Disease: A Systematic Review of Clinical Trials
title_short Donanemab for Alzheimer’s Disease: A Systematic Review of Clinical Trials
title_sort donanemab for alzheimer s disease a systematic review of clinical trials
topic Alzheimer’s disease
donanemab
plaque
cognition
elderly care
url https://www.mdpi.com/2227-9032/11/1/32
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