Enrollment Commences in Phase III Clinical Study of Eisai's BACE Inhibitor E2609 in Early Alzheimer's Disease

TOKYO, Oct 31, 2016 - (ACN Newswire) - Eisai Co., Ltd. announced today that enrollment has commenced in MISSION AD, a Phase III clinical program of the beta secretase cleaving enzyme (BACE) inhibitor E2609 in patients with early Alzheimer's disease in the United States. E2609 was discovered by Eisai and is being jointly developed by Eisai and Biogen Inc. as a potential Alzheimer's disease modifying treatment. Regarding the global conduct of the studies, Eisai and Biogen are currently in consultation with the regulatory authorities in the EU and Japan. The first study of the MISSION AD program entitled MISSION AD1 (Study 301) is a global, multicenter, placebo-controlled, double-blind, parallel-group Phase III clinical study aiming to assess the efficacy and safety of E2609 in 1,330 patients with biomarker confirmed early Alzheimer's disease. The treatment group will be administered a dosage of 50 mg of E2609 daily during the treatment period of 24 months, and the primary endpoint will utilize the Clinical Dementia Rating Sum of Boxes (CDR-SB). Discovered in-house by Eisai, E2609 is an investigational next-generation oral candidate for the treatment of AD that is believed to inhibit BACE, a key enzyme in the production of amyloid beta (Abeta). By inhibiting BACE, E2609 may decrease the formation of toxic Abeta peptide aggregates and amyloid plaques in the brain, thereby potentially slowing disease progression. Lynn Kramer, M.D., Chief Clinical Officer and Chief Medical Officer of the Eisai Neurology Business Group, commented, "We are committed to helping those with Alzheimer's through the continued development of clinical studies with our BACE inhibitor targeting the production of Abeta proteins. Through the initiation of MISSION AD1 and similar clinical trials, we hope to demonstrate the value of this compound for those who suffer from early Alzheimer's disease."

About Eisai

Eisai Co., Ltd. (TSE:4523; ADR:ESALY) is a research-based human health care (hhc) company that discovers, develops and markets products throughout the world. Eisai focuses its efforts in three therapeutic areas: integrative neuroscience, including neurology and psychiatric medicines; integrative oncology, which encompasses oncotherapy and supportive-care treatments; and vascular/immunological reaction. Through a global network of research facilities, manufacturing sites and marketing subsidiaries, Eisai actively participates in all aspects of the worldwide healthcare system. For more information about Eisai Co., Ltd., please visit www.eisai.com.

Source: Eisai

Contact:

Public Relations Department,
Eisai Co., Ltd.
+81-3-3817-5120

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