Cognitive, global, and functional benefits of donepezil in Alzheimer's disease and vascular dementia: results from large-scale clinical trials.
Alzheimer's disease (AD) and vascular dementia (VaD) are both associated with deficits in cholinergic neurotransmission that are amenable to therapeutic intervention. The cholinesterase inhibitor, donepezil, is clinically effective in both AD and VaD. Results from a 10-study metaanalysis of donepezil (5 or 10 mg/day) in AD and a two-study combined analysis of donepezil (5 or 10 mg/day) in VaD are presented to compare patient characteristics and donepezil treatment outcomes. The analyzed studies were randomized, placebo-controlled, and of up to 24 weeks duration. In both AD and VaD, donepezil provided significant benefits compared with placebo on measures of cognition and global function. Placebo-treated AD patients showed a decline in cognition and global function, whereas placebo-treated VaD patients remained stable, suggesting treatment effects of donepezil in VaD were driven by improvement rather than stabilization or reduced decline. More VaD patients than AD patients received concomitant medications. Cardiovascular adverse events were more common in VaD than AD patients but were not increased by donepezil. In conclusion, although there are differences between AD and VaD patients in comorbid conditions and concomitant medications, donepezil is effective and well tolerated in both types of dementia.
Passmore
A Peter
AP
Department of Geriatric Medicine, Queen's University Belfast, Whitla Medical Building, 97 Lisburn Road, Belfast, BT9 7BL, Ireland.
Bayer
Anthony J
AJ
Steinhagen-Thiessen
Elisabeth
E
D000368:Aged; D000544:Alzheimer Disease / Q000188:drug therapy* / Q000523:psychology; D003071:Cognition / Q000502:physiology; D015140:Dementia, Vascular / Q000188:drug therapy* / Q000523:psychology; D000077265:Donepezil; D005260:Female; D006801:Humans; D007189:Indans / Q000009:adverse effects / Q000627:therapeutic use*; D008297:Male; D015337:Multicenter Studies as Topic; D009483:Neuropsychological Tests; D018697:Nootropic Agents / Q000009:adverse effects / Q000627:therapeutic use*; D010880:Piperidines / Q000009:adverse effects / Q000627:therapeutic use*; D016032:Randomized Controlled Trials as Topic; D016896:Treatment Outcome
D007189:Indans; D018697:Nootropic Agents; D010880:Piperidines; D000077265:Donepezil