Neuropsychological, neuropsychiatric, and quality-of-life assessments in Alzheimer's disease patients treated with plasma exchange with albumin replacement from the randomized AMBAR study.


Journal

Alzheimer's & dementia : the journal of the Alzheimer's Association
ISSN: 1552-5279
Titre abrégé: Alzheimers Dement
Pays: United States
ID NLM: 101231978

Informations de publication

Date de publication:
07 2022
Historique:
revised: 02 07 2021
received: 12 03 2021
accepted: 11 08 2021
pubmed: 3 11 2021
medline: 20 7 2022
entrez: 2 11 2021
Statut: ppublish

Résumé

We report the effects of plasma exchange (PE) with albumin replacement on neuropsychological, neuropsychiatric, and quality-of-life (QoL) outcomes in mild-to-moderate Alzheimer's disease (AD) patients in a phase 2b/3 trial (Alzheimer's Management by Albumin Replacement [AMBAR] study). Three hundred forty-seven patients were randomized into placebo (sham-PE) and three PE-treatment arms with low/high doses of albumin, with/without intravenous immunoglobulin (IVIG). Specific test measurements were performed at baseline; month 2 (weekly conventional PE); months 6, 9, and 12 (monthly low-volume PE [LVPE]); and month 14. The PE-treated mild-AD cohort improved their language fluency and processing speed versus placebo at month 14 (effect sizes: >100%; P-values: .03 to .001). The moderate-AD cohort significantly improved short-term verbal memory (effect sizes: 94% to >100%; P-values: .02 to .003). The progression of the neuropsychiatric symptoms of PE-treated was similar to placebo. Mild-AD patients showed improved QoL (P-values: .04 to .008). PE-treated AD patients showed improvement in memory, language abilities, processing speed, and QoL-AD. No worsening of their psychoaffective status was observed.

Identifiants

pubmed: 34726348
doi: 10.1002/alz.12477
pmc: PMC9540900
doi:

Substances chimiques

Albumins 0
Methacrylates 0

Types de publication

Clinical Trial, Phase II Clinical Trial, Phase III Journal Article Randomized Controlled Trial Research Support, Non-U.S. Gov't

Langues

eng

Sous-ensembles de citation

IM

Pagination

1314-1324

Informations de copyright

© 2021 The Authors. Alzheimer's & Dementia published by Wiley Periodicals LLC on behalf of Alzheimer's Association.

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Auteurs

Mercè Boada (M)

Research Center and Memory Clinic, Fundació ACE, Institut Català de Neurociències Aplicades-Universitat Internacional de Catalunya, Barcelona, Spain.
Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos III, Madrid, Spain.

Oscar L López (OL)

Departments of Neurology and Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA.

Javier Olazarán (J)

Neurology Service, Hospital General Universitario Gregorio Marañón, Madrid, Spain.
Memory Disorders Clinic, HM Hospitales, Madrid, Spain.

Laura Núñez (L)

Alzheimer's Research Group, Grifols, Barcelona, Spain.

Michael Pfeffer (M)

Medical Services, Allied Biomedical Research Institute, Inc., Miami, Florida, USA.

Orlando Puente (O)

Center for Prevention of Alzheimer's Disease, Miami Dade Medical Research Institute, Miami, Florida, USA.

Gerard Piñol-Ripoll (G)

Cognitive Disorders Unit, Clinical Neuroscience Research, IRB Lleida-Hospital Universitari Santa Maria, Lleida, Spain.

José E Gámez (JE)

Psychiatry Department, Galiz Research, Hialeah, Florida, USA.

Fernando Anaya (F)

Nephrology Service, Hospital General Universitario Gregorio Marañón, Madrid, Spain.

Dobri Kiprov (D)

Apheresis Care Group and Fresenius Medical Care, San Francisco, California, USA.

Montserrat Alegret (M)

Research Center and Memory Clinic, Fundació ACE, Institut Català de Neurociències Aplicades-Universitat Internacional de Catalunya, Barcelona, Spain.

Carlota Grifols (C)

Alzheimer's Research Group, Grifols, Barcelona, Spain.

Miquel Barceló (M)

Alzheimer's Research Group, Grifols, Barcelona, Spain.

Jordi Bozzo (J)

Alzheimer's Research Group, Grifols, Barcelona, Spain.

Zbigniew M Szczepiorkowski (ZM)

Department of Pathology and Laboratory Medicine, Dartmouth Hitchcock Medical Center, Lebanon, New Hampshire, USA.
Institute of Hematology and Transfusion Medicine, Warsaw, Poland.

Antonio Páez (A)

Alzheimer's Research Group, Grifols, Barcelona, Spain.

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