Donepezil 23 mg in Asian patients with moderate‐to‐severe Alzheimer's disease
2017
Background
Ethnic diversity between different populations may affect treatment safety and efficacy.
Aims and methods
A subanalysis to a global trial (study 326) was carried out to ascertain the safety and efficacy of donepezil 23 mg/day compared with donepezil 10 mg/day in Asian patients with moderate-to-severe Alzheimer's disease. Changes in cognition and global functioning were measured by the Severe Impairment Battery (SIB) and Clinician's Interview-Based Impression of Change Plus Caregiver Input (CIBIC-Plus), respectively, at week 24.
Results
Cognitive improvement measured by SIB score was greater with donepezil 23 mg than with donepezil 10 mg (+1.36 vs −1.56]; difference, 2.92). There was no difference between the groups in global function measured by the CIBIC-Plus (3.94 and 3.95, respectively). Overall, 119 patients (82.1%) receiving donepezil 23 mg and 56 (71.8%) receiving donepezil 10 mg experienced ≥1 treatment emergent adverse events (TEAEs). In the donepezil 23 mg group, the incidence of TEAEs was higher among patients of lower weight (<55 kg) at baseline than in those of higher weight (64 of 75 patients [85.3%] vs 55 of 70 patients [78.5%]).
Conclusions
The benefits and risks associated with donepezil 23 mg in Asian patients are comparable to those of the global study population.
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