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A new cognitive evaluation battery for Down syndrome and its relevance for clinical trials
Sola, Susana de (Institut Hospital del Mar d'Investigacions Mèdiques)
Torre Fornell, Rafael de la (Centro de Investigación Biomédica en Red de la Fisiopatología de la Obesidad y Nutrición (CIBERobn))
Sánchez-Benavides, Gonzalo (Institut Hospital del Mar d'Investigacions Mèdiques)
Benejam, Bessy (Fundació Catalana Síndrome de Down)
Cuenca-Royo, Aida (Institut Hospital del Mar d'Investigacions Mèdiques)
Hoyo, Laura del (Institut Hospital del Mar d'Investigacions Mèdiques)
Rodríguez, Joan (Institut Hospital del Mar d'Investigacions Mèdiques)
Catuara-Solarz, Silvina (Centre de Regulació Genòmica (Barcelona))
Sánchez-Gutiérrez, Judit (Fundació Espai Salut (Barcelona))
Dueñas-Espin, Ivan (Institut Hospital del Mar d'Investigacions Mèdiques)
Hernandez, Gimena (Institut Hospital del Mar d'Investigacions Mèdiques)
Peña-Casanova, Jordi (Institut Hospital del Mar d'Investigacions Mèdiques)
Langohr, Klaus (Institut Hospital del Mar d'Investigacions Mèdiques)
Videla, Sebastián (Fundació Catalana Síndrome de Down)
Blehaut, Henry (Fondation Jérôme Lejeune (Paris, França))
Farré Albaladejo, Magí (Institut Germans Trias i Pujol. Hospital Universitari Germans Trias i Pujol)
Dierssen, Mara (Networking Center of Biomedical Research in Rare Diseases (CIBERER))
TESDAD Study Group
Universitat Autònoma de Barcelona

Date: 2015
Abstract: Abstract: The recent prospect of pharmaceutical interventions for cognitive impairment of Down syndrome (DS) has boosted a number of clinical trials in this population. However, running the trials has raised some methodological challenges and questioned the prevailing methodology used to evaluate cognitive functioning of DS individuals. This is usually achieved by comparing DS individuals to matched healthy controls of the same mental age. We propose a new tool, the TESDAD Battery that uses comparison with age-matched typically developed adults. This is an advantageous method for probing the clinical efficacy of DS therapies, allowing the interpretation and prediction of functional outcomes in clinical trials. In our DS population the TESDAD battery permitted a quantitative assessment of cognitive defects, which indicated language dysfunction and deficits in executive function, as the most important contributors to other cognitive and adaptive behavior outcomes as predictors of functional change in DS. Concretely, auditory comprehension and functional academics showed the highest potential as end-point measures of therapeutic intervention for clinical trials: the former as a cognitive key target for therapeutic intervention, and the latter as a primary functional outcome measure of clinical efficacy. Our results also emphasize the need to explore the modulating effects of IQ, gender and age on cognitive enhancing treatments. Noticeably, women performed significantly better than men of the same age and IQ in most cognitive tests, with the most consistent differences occurring in memory and executive functioning and negative trends rarely emerged on quality of life linked to the effect of age after adjusting for IQ and gender. In sum, the TESDAD battery is a useful neurocognitive tool for probing the clinical efficacy of experimental therapies in interventional studies in the DS population suggesting that age-matched controls are advantageous for determining normalization of DS.
Note: DURSI/2009SGR131
Note: DURSI/2009SGR718
Note: ISCIII/FISPI11/00744
Note: ISCIII/FI12/00319
Note: MINECO/SAF2010-16427
Rights: Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original. Creative Commons
Language: Anglès
Document: article ; recerca ; publishedVersion
Subject: Down syndrome ; TESDAD neurocognitive battery ; Clinical trials as topic ; Cognition ; Intellectual disabilities
Published in: Frontiers in psychology, Vol. 6 Núm. 708 (June 2015) , ISSN 1664-1078

DOI: 10.3389/fpsyg.2015.00708
PMID: 26089807

14 p, 1.0 MB

The record appears in these collections:
Research literature > UAB research groups literature > Research Centres and Groups (scientific output) > Health sciences and biosciences > Institut d'Investigació en Ciencies de la Salut Germans Trias i Pujol (IGTP)
Articles > Research articles
Articles > Published articles

 Record created 2016-07-25, last modified 2021-01-22

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