Eisai Co., Ltd. announced today that three oral presentations and eight poster presentations, highlighting the latest data on its Alzheimer’s disease / dementia pipeline including anti-amyloid beta (Abeta) protofibril antibody BAN2401, orexin receptor antagonist lemborexant and a simple blood diagnostic for Alzheimer’s disease (AD), will be given at the 12th Clinical Trials on Alzheimer’s Disease (CTAD) conference taking place in San Diego, California in the United States, from December 4 to 7, 2019. BAN2401 is being jointly developed by Eisai and Biogen Inc. In addition, the simple blood diagnostics for AD are being jointly developing by Eisai and Sysmex Corporation. For BAN2401, the persistance of brain Abeta levels in patients with early AD at the beginning of the open label extension phase of the Phase II study (Study 201) will be presented in Late-Breaking Oral Communications Session. Study 201 is a first late-stage study which successfully demonstrated the potential disease-modifying effects on both clinical function and Abeta accumulation in the brain. In addition, the study design and current status of ongoing Clarity AD (Study 301) will be presented. Meanwhile, for the investigational sleep-wake regulation agent lemborexant, the further data analysis results from Phase II clinical study (Study 202) for AD patients with irregular sleep-wake rhythm disorder (ISWRD) will be given. In addition, regarding the creation of the simplified blood diagnostics for AD, jointly developed with Sysmex, the latest data of the fully automated protein assay system using the Sysmex’s automated protein measurement immunoassay platform HISCLTM series will be presented. Eisai is aiming to realize prevention and cure of dementia through a holistic approach to dementia drug discovery research based on a foundation of over 35 years of experience of drug discovery activities in the area of Alzheimer’s disease / dementia. Eisai is striving to create innovative medicines as soon as possible in order to further contribute to addressing the unmet medical needs of, as well as increasing the benefits provided to, patients and their families.