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A Study to Evaluate the Effects of MK-0249 and an Alzheimer's Disease Medication on Cognitive Function in Adults With Alzheimer's Disease (MK-0249-023)

Dementia Clinical Trial

Official title:
A Randomized Clinical Trial To Evaluate the Single Dose Acute Effects of MK-0249 and Donepezil On Cognitive Function In Adult Patients With Alzheimer's Disease

Clinical Trial Summary

This study will evaluate acute symptomatic improvements in cognitive performance in healthy elderly participants with mild-to-moderate Alzheimer's disease. A four-week pilot study will first evaluate the CogState computerized cognitive battery in participants who are not receiving treatment. After completion of the pilot study, participants will be randomized to receive Placebo, Donepezil 5 mg, MK-0249 7.5 mg, and MK-0249 25 mg. After each drug administration the participants will be given the CogState computerized cognitive battery to assess cognitive performance. The primary hypotheses are that cognitive performance in participants with Alzheimer's disease, or in healthy participants, is improved by the administration of a single oral 5 mg dose of Donepezil as compared to placebo.

Clinical Trial Description

n/a

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT00874939
Study type Interventional
Source Merck Sharp & Dohme Corp.
Contact
Status Terminated
Phase Phase 1
Start date April 6, 2009
Completion date April 20, 2009
View Details
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