Eisai Presents New Data on the Continued and Expanding Benefit of LEQEMBI(R) (lecanemab-irmb) Maintenance Treatment in Early Alzheimer’s Disease at CTAD 2025
TOKYO and CAMBRIDGE, Mass., Dec 4, 2025 - (JCN Newswire via SeaPRwire.com) - 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 latest findings on time savings with continued treatment with humanized anti-soluble aggregated amyloid-beta (Aβ) monoclonal antibody lecanemab (generic name, U.S. brand name LEQEMBI®) were presented at the 18th Clinical Trials on Alzheimer's Disease (CTAD) Conference. Additionally, a scientific symposium was held on the subcutaneous formulation (SC-AI), which was approved for maintenance treatment in the United States in August 2025, and the rolling supplemental Biologics License Application (sBLA) for initiation treatment was completed in November 2025. The application for a subcutaneous injectable formulation in Japan was submitted in November 2025.Alzheimer's disease (AD) is a progressive, relentless disease with Aβ and tau as hallmarks, that is caused by a continuous underlying neurotoxic process driven by protofibrils* (PF) that begins before amyloid plaque removal ...
