A 24-month, Multicenter, Randomized, Double-blind, Placebo-controlled, Parallel-group, Efficacy, Safety, Tolerability, Biomarker, and Pharmacokinetic Study of AZD3293 in Early Alzheimer's Disease (The AMARANTH Study)
A 24-month, Multicenter, Randomized, Double-blind, Placebo-controlled, Parallel-group, Efficacy, Safety, Tolerability, Biomarker, and Pharmacokinetic Study of AZD3293 in Early Alzheimer's Disease (The AMARANTH Study)
The purpose of this study is to assess the efficacy and safety of lanabecestat compared with placebo administered for 104 weeks in the treatment of early Alzheimer´s disease. The study will test the hypothesis that lanabecestat is a disease-modifying treatment for participants with early Alzheimer´s disease, defined as the continuum of participants with mild cognitive impairment (MCI) due to Alzheimer´s disease and participants diagnosed with mild dementia of the Alzheimer´s type, as measured by change from baseline on the 13-item Alzheimer's Disease Assessment Scale - Cognitive Subscale (ADAS-Cog13) score at week 104 in each of the 2 lanabecestat treatment groups compared with placebo.
Participants who meet other study entry requirements will be required to undergo either an amyloid positron emission tomography (PET) scan or a lumbar puncture for cerebrospinal fluid (CSF) sampling at screening to document presence of abnormal levels of brain and CSF amyloid for study inclusion. The study includes 2 sub-studies: the participants that undergo a PET scan at screening will be included in the PET-substudy, and participants who undergo a lumbar puncture at screening will be included in the CSF substudy until each of these substudies are completed.
Inclusion Criteria:
Exclusion Criteria:
Cologne, North Rhine-Westphalia 50935, Germany
Chuo-ku, Chiba 260-8712, Japan
Iruma-Gun, Saitama 350-0495, Japan
Bunkyo-Ku, Tokyo 113-8603, Japan
Bunkyo-ku, Tokyo 113-8655, Japan
Mitaka-shi, Tokyo 181-0013, Japan
Shinjuku-ku, Tokyo 160-0023, Japan
Shinjuku-ku, Tokyo 162-8666, Japan
Tsukuba, Tokyo 305 8576, Japan
Osaka, 545-8586, Japan
Seogu, Busan 49201, South Korea
Bucheon-si, Gyeonggi-do 14647, South Korea
Namdong, Incheon 21565, South Korea