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Pharmacogenetics. 2002 Jul;12(5):415-20.

Presence or absence of at least one epsilon 4 allele and gender are not predictive for the response to donepezil treatment in Alzheimer's disease.

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1
Hôpital Broca, Paris, France. anne-sophie.rigaud@brc.ap-hop-paris.fr

Abstract

The objective was to evaluate the effects of the apolipoprotein E (ApoE) genotype and gender on the response to donepezil treatment in Alzheimer's disease. ApoE genotyping was performed on 117 patients with mild to moderate Alzheimer's disease who were included in a 36-week open label trial of donepezil therapy. Of these 117 patients, who constituted the intent-to-treat population (ITT), 80 completed the trial, and constituted the evaluable population. Patients were treated blindly in relation to ApoE genotype. Outcome measures were Alzheimer's disease Assessment Scale-Cognitive Component (ADAS-Cog), the Mini Mental State Examination, Instrumental Activities of Daily Living, and the Caregiver-rated Clinical Global Impression of Change. ITT analysis did not reveal significant differences between the responses of epsilon 4- and epsilon 4+ carriers according to the ADAS-Cog (P = 0.28). No differences were found either between the responses of men and women (P = 0.81), and there was no significant interaction between genotype and gender (P = 0.09). Other outcome measures all exhibited similar patterns of change to those seen using the ADAS-Cog. Consequently, these results do not support the hypothesis that the ApoE phenotype and gender are predictors of the response to donepezil in Alzheimer's disease patients.

PMID:
12142731
[Indexed for MEDLINE]
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