A Confirmatory Trial of SK-PC-B70M in Mild to Moderate Alzheimer's Disease

Inclusion Criteria: * Clinical diagnosis of probable Alzheimer's disease(DSM-IV and NINCDS-ADRDA criteria) * MRI within the last 12 months consistent with a diagnosis of AD * MMSE score of 10 to 26 and CDR of 1 or 2 * AChEI or memantine was not taken at least 3 months prior to screening Exclusion Criteria: * Other central nervous disease * Hypothyroidism, Vitamin B12/ Folic acid deficiency, Hypercalcemia, Neurosyphilis, AIDS * T.I.A or Major infarction within the last 12 months * Any serious disorder that could limit the ability of the patient to participate in the study * COPD or asthma * Any condition which would make the patient or the caregiver, in the opinion of the investigator, unsuitable for the study