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Eisai Completes Rolling Submission to US FDA for LEQEMBI® IQLIK™ (lecanemab-irmb) Supplemental Biologics License Application as a Subcutaneous Starting Dose for the Treatment of Early Alzheimer’s Disease Under Fast Track Status

LEQEMBI IQLIK, if approved for initiation dosing, would be the first and only anti-amyloid treatment to offer at-home injection from the start of therapy to help patients and care partners treat this progressive, relentless diseaseTOKYO and CAMBRIDGE, Mass., Nov. 25, 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 tha

articleBiogen Inc.November 25, 202519/company/biogen-inc/news/eisai-completes-rolling-submission-to-us-fda-for-leqembir-iqliktm-lecanemab-irmb-supplemental-biologics-license-application-as-a-subcutaneous-starting-dose-for-the-treatment-of-early-alzheimers-disease-under-fast-track-status
Eisai Completes Rolling Submission to US FDA for LEQEMBI® IQLIK™ (lecanemab-irmb) Supplemental Biologics License Application as a Subcutaneous Starting Dose for the Treatment of Early Alzheimer’s Disease Under Fast Track Status

About this update from Biogen Inc.

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Eisai Co., Ltd.Subcutaneous administrationADtreatment of Alzheimer’s diseaseamyloid plaqueclinical trialsIV administrationclinical trialsBiogen Inc.patientssuperficial siderosis