A Clinical Study to Assess Single and Repeat Doses of a New Medication (GSK933776) in Patients With Alzheimer's Disease

"Part A planned doses cohort 1 to cohort 3 0.001 mg/kg, 0.01 mg/kg and 0.1 mg/kg.~Part B planned doses cohort 4 to cohort 7 0.1 mg/kg, 1mg/kg, 3mg/kg and 10 mg/kg"

Part A first 2 cohorts 5 patients per cohort 2 placebo and 3 active third cohort part A 2 placebo 6 active. Part B 8 patients per cohort 2 placebo 6 active.