Purpose: To standardize imaging studies using florbetapir F 18 PET to provide information on amyloid burden.
Purpose: To evaluate the efficacy and safety of RO4602522 in people with moderate-stage Alzheimer disease who take donepezil or rivastigmine.
Purpose: To determine whether intensive blood pressure lowering will reduce the incidence of all-cause dementia, reduce the decline of global cognitive function in key specific domains, and show changes in brain structure.
Purpose: To determine the safety and efficacy of the experimental drug TRx0237 to treat people with mild Alzheimer's disease.