Multicenter evaluation of new instruments for Alzheimer's disease clinical trials: Summary of results

J. A. Mackell, S. H. Ferris, R. Mohs, L. Schneider, D. Galasko, P. Whitehouse, F. Schmitt, M. Sano, K. J. Thal

Research output: Contribution to journalArticlepeer-review

18 Scopus citations


The Instrument Development Project of the Alzheimer's Disease Cooperative Study (ADCS) evaluated new assessments in five domains: (a) cognitive function; (b) clinical global change; (c) activities of daily living; (d) behavioral symptoms; and (e) cognition in severely impaired patients. These new instruments demonstrate excellent discrimination between normal controls and patient groups and show adequate validity and reliability. Stability of measurement and sensitivity to longitudinal change were also demonstrated in each of these areas. Examination of several domain-specific questions also contributed new information on the measurement of cognitive function with different subtasks across AD severity levels,the stability of clinical ratings of global change, and the applicability of behavioral assessments across severity levels. The success of this project enhances the state of the art in the measurement of efficacy in AD clinical trials and also provides a basis for future research on improving AD outcome measures.

Original languageEnglish
Pages (from-to)S65-S69
JournalAlzheimer Disease and Associated Disorders
Issue numberSUPPL. 2
StatePublished - 1997


  • AD assessments
  • AD severity
  • Alzheimer's disease
  • Clinical trials

ASJC Scopus subject areas

  • Clinical Psychology
  • Gerontology
  • Geriatrics and Gerontology
  • Psychiatry and Mental health


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