A Randomized Study to Evaluate FK962 in Subjects With Mild to Moderate Alzheimer's Disease

Inclusion Criteria: * Subject satisfies the criteria for the clinical diagnosis of probable AD * Subject has a score =\< 4 on the Modified Hachinski Ischemia Scale at the screening visit Exclusion Criteria: * Subject has history or evidence of significant neurologic disease other than AD * Subject has a history of stroke * Subject has been treated for schizophrenia or recurrent mood disorder within the previous three years * Subject has a hematologic or solid malignancy diagnosed within five years prior to study entry * Subject has medically unstable COPD or asthma * Subject has end stage CHF (NYHA Class III or IV) or unstable angina * Subject has evidence of significant renal insufficiency * Subject has insulin-dependent diabetes mellitus or HbA1C\>8.5% at screening