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Eisai Submits Marketing Authorization Application for Lecanemab as Treatment for Early Alzheimer’s Disease in Europe

TOKYO, Jan 11, 2023 - (JCN Newswire via SEAPRWire.com) - Eisai Co., Ltd. and Biogen Inc. (Nasdaq: BIIB) announced today that Eisai has submitted a marketing authorization application (MAA) for lecanemab (Brand Name in the U.S.: LEQEMBI), an investigational anti-amyloid beta (Abeta) protofibril antibody, for the treatment of early Alzheimer's disease (mild cognitive impairment due to Alzheimer's disease (AD) and mild AD dementia) to the European Medicines Agency (EMA). This application is based on the results of the Phase III Clarity AD study and the Phase IIb clinical study (Study 201), which demonstrated that lecanemab treatment showed a reduction of clinical decline in early AD, and is subject to a validation to determine whether the EMA accepts the application for review.The Clarity AD study met its primary endpoint (CDR-SB(1): Clinical Dementia Rating-Sum of Boxes) and all key secondary endpoints with highly statistically significant results. The most common adverse events (>10%) in the lecanemab group were infusion reactions, ARIA-H (combined cerebral microhemorrhages, cerebral macrohemorrhages, and superficial siderosis), ARIA-E (edema/effusion), headache, and fall.In Nove...