Biogen & Eisai Co and Early Alzheimer's Disease 
From Tokyo and Cambridge, Eisai Co., Ltd. and Biogen Inc. (BIIB) announced positive topline results from Eisai’s large global Phase 3 confirmatory Clarity AD clinical trial of lecanemab. The product is an investigational anti-amyloid beta (Aβ) protofibril antibody for the treatment of mild cognitive impairment (