Recommended cognitive outcomes in preclinical Alzheimer's disease: Consensus statement from the European Prevention of Alzheimer's Dementia project
Corresponding Author
Karen Ritchie
Institut National de la Sante et de la Recherche Medicale, U1061 Neuropsychiatrie, Montpellier, France
University of Montpellier, Montpellier, France
Centre for Dementia Prevention, University of Edinburgh, Edinburgh, UK
Joint first authors.
Corresponding author. Tel.: +33 4 99614560; Fax: +33 4 99614579.
E-mail address: [email protected]
Search for more papers by this authorMichael Ropacki
Clinical Research, Neurosciences, Janssen, South San Francisco, CA, USA
Joint first authors.
Search for more papers by this authorBruce Albala
Clinical Research, Neuroscience and General Medicine, Eisai Inc, Woodcliff Lake, NJ, USA
Search for more papers by this authorJohn Harrison
Metis Cognition Ltd, Kilmington Common, UK
Alzheimer Center VUmc, Amsterdam, Holland
Search for more papers by this authorJeffrey Kaye
Neurology and Biomedical Engineering, Oregon Health and Science University, Portand, OR, USA
Search for more papers by this authorJoel Kramer
Department of Neurology Memory and Ageing Centre, University of California at San Francisco, San Francisco, CA, USA
Search for more papers by this authorChristopher Randolph
Department of Neurology, Loyola University Medical Center, Maywood, IL, USA
Search for more papers by this authorCraig W. Ritchie
Centre for Dementia Prevention, University of Edinburgh, Edinburgh, UK
Search for more papers by this authorCorresponding Author
Karen Ritchie
Institut National de la Sante et de la Recherche Medicale, U1061 Neuropsychiatrie, Montpellier, France
University of Montpellier, Montpellier, France
Centre for Dementia Prevention, University of Edinburgh, Edinburgh, UK
Joint first authors.
Corresponding author. Tel.: +33 4 99614560; Fax: +33 4 99614579.
E-mail address: [email protected]
Search for more papers by this authorMichael Ropacki
Clinical Research, Neurosciences, Janssen, South San Francisco, CA, USA
Joint first authors.
Search for more papers by this authorBruce Albala
Clinical Research, Neuroscience and General Medicine, Eisai Inc, Woodcliff Lake, NJ, USA
Search for more papers by this authorJohn Harrison
Metis Cognition Ltd, Kilmington Common, UK
Alzheimer Center VUmc, Amsterdam, Holland
Search for more papers by this authorJeffrey Kaye
Neurology and Biomedical Engineering, Oregon Health and Science University, Portand, OR, USA
Search for more papers by this authorJoel Kramer
Department of Neurology Memory and Ageing Centre, University of California at San Francisco, San Francisco, CA, USA
Search for more papers by this authorChristopher Randolph
Department of Neurology, Loyola University Medical Center, Maywood, IL, USA
Search for more papers by this authorCraig W. Ritchie
Centre for Dementia Prevention, University of Edinburgh, Edinburgh, UK
Search for more papers by this authorAbstract
The Horizon 2020/IMI European Prevention of Alzheimer's Dementia (EPAD) project will undertake large-scale proof-of-concept trials in predementia Alzheimer's disease (AD). Within EPAD, the monitoring of cognitive trajectories in the preclinical period will constitute a central outcome measure; however, there are currently no clear guidelines as to how this should be achieved as most measures have been developed for the period around dementia diagnosis. The EPAD Scientific Advisory Group for Clinical and Cognitive Outcomes identified appropriate cognitive measures based on a literature search covering both cognitive correlates of preclinical brain changes from imaging studies and cognitive changes observed over time in nondementia population cohorts developing incident dementia. These measures were evaluated according to the following criteria: validity, coherence with biomarker changes, psychometric properties, cross-cultural suitability, availability of alternative forms, and normative data limited practice effects. The resulting consensus statement provides recommendations for both future drug trials and research into preclinical Alzheimer's disease.
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