PMID: 11921156Mar 29, 2002Paper

A 24-week, double-blind, placebo-controlled trial of donepezil in patients with Down syndrome and Alzheimer's disease--pilot study

International Journal of Geriatric Psychiatry
Vee PrasherDown syndrome Ageing Study Group

Abstract

Donepezil Hydrochloride (Aricept) is a selective anticholinesterase inhibitor developed for the treatment of Alzheimer's disease (AD). This study investigated the safety and efficacy of the drug to treat Down syndrome (DS) adults with mild to moderate AD. This was a 24-week, double blind, placebo controlled, parallel-group trial. Patients were randomized to receive placebo or donepezil (5 mg per day during the first four weeks, and then 10 mg per day thereafter). Primary efficacy was measured using the Dementia Scale for Mentally Retarded Persons (DMR), and secondary efficacy was measured using the Severe Impairment Battery (SIB), Neuropsychiatric Inventory (NPI) and by the Adaptive Behavior Scale (ABS). A total of 30 DS patients with AD entered the study of which 27 were included in the subsequent data analysis. The donepezil group had non-statistically significant reduction in deterioration in DMR, SIB, and ABS mean scores relative to the placebo group. However NPI scores showed less improvement in the donepezil group when compared to the placebo group. Fifty percent of subjects in the donepezil group showed improvement in mean DMR scores at the end point compared to baseline, when compared to 31% on placebo. There were no li...Continue Reading

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