Multicentre UK Study of the Acetylcholinesterase Inhibitor Donepezil in Early Dementia Associated with Parkinson's Disease (MUSTARDD-PD)

Is the cholinesterase inhibitor drug donepezil hydrochloride superior to placebo in improving cognitive function, neuropsychiatric burden and functional ability in people with Parkinson�s disease and mild dementia after 24 months of treatment?