Eisai Submits New Drug Application for Subcutaneous Formulation of “LEQEMBI®” for the Treatment of Early Alzheimer’s Disease in Japan

TOKYO and CAMBRIDGE, Mass., Nov. 27, 2025 (GLOBE NEWSWIRE) -- 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 Eisai has filed a new drug application for “LEQEMBI^®” (brand name, generic name: lecanemab) seeking approval for a subcutaneous formulation (subcutaneous autoinjector: SC-AI) as a new route of administration to Japan’s Pharmaceuticals and Medical Devices Agency (PMDA).

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