FOR GLOBAL MEDIA AND JOURNALISTS OUTSIDE THE EMEA REGION 

In Great Britain, lecanemab is indicated for the treatment of mild cognitive impairment and mild dementia due to Alzheimer's disease (AD) in adult patients that are apolipoprotein E ε4 (ApoE ε4)* heterozygotes or non-carriers1

Great Britain becomes the first country in Europe to authorize the medicine, which targets an underlying cause of AD1

TOKYO and CAMBRIDGE, Mass., Aug. 22, 2024 /PRNewswire/ -- Eisai Co., Ltd. (Headquarters: Tokyo, CEO: Haruo Naito, "Eisai") and Biogen Inc. (Nasdaq: BIIB, Corporate headquarters: Cambridge, Massachusetts, CEO: Christopher A. Viehbacher, "Biogen") announced today that the humanized amyloid-beta (Aβ) monoclonal antibody "Leqembi®" (brand name, generic name: lecanemab) has been granted a Marketing Authorization by the Medicines and Healthcare products Regulatory Agency (MHRA) in Great Britain.1 Lecanemab is indicated for the treatment of mild cognitive impairment (MCI) and mild dementia due to Alzheimer's disease (AD) in adult patients that are apolipoprotein E ε4 (ApoE ε4)* heterozygotes or non-carriers.1 Lecanemab becomes the first treatment for early AD (MCI and mild dementia due to AD)2 that targets an underlying cause of the disease, to be authorized in a country in Europe.1