Press Releases

Eisai Co., Ltd. (Headquarters: Tokyo, CEO: Haruo Naito, "Eisai") and Biogen Inc. (Nasdaq: BIIB, Corporate headquarters: Cambridge, Massachusetts, CEO: Christopher A. Viehbacher, "Biogen")...

Etalanetug demonstrated reduction of eMTBR-tau243, a novel CSF and plasma biomarker that specifically reflects tau tangle pathology, in Phase Ib/II study TOKYO, Dec. 1, 2025 /PRNewswire/ -- Eisai...

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...

Latest findings from Eisai's robust Alzheimer's disease (AD) pipeline explore long-term treatment with lecanemab and estimated time savings over 10 years, safety and potential benefits of...

Eisai Co., Ltd. (Headquarters: Tokyo, CEO: Haruo Naito, "Eisai") and Biogen Inc. (Nasdaq: BIIB, Headquarters: Cambridge, Massachusetts, CEO: Christopher A. Viehbacher, "Biogen") announced today...

New LEQEMBI CompanionTM program launched to expand helpful resources for patients throughout the treatment journey, including Nurse Educators who can provide patients with injection training, and...

Eisai Co., Ltd. (Headquarters: Tokyo, CEO: Haruo Naito, "Eisai") announced today that etalanetug (development code: E2814), an investigational anti-MTBR (microtubule binding region) tau antibody,...

E2086 Showed Potential to Improve Wakefulness in People Living with Narcolepsy Type 1 TOKYO, Sept. 8, 2025 /PRNewswire/ -- Eisai Co., Ltd. (Headquarters: Tokyo, CEO: Haruo Naito, "Eisai")...

Eisai Co., Ltd. (Headquarters: Tokyo, CEO: Haruo Naito, "Eisai") announced today that the company will deliver a total of 11 presentations, including clinical data on the selective orexin 2...

LEQEMBI IQLIK, if approved for initiation dosing, would be the first and only anti-amyloid treatment to offer at-home injection from the start to help patients and care partners treat this...

LEQEMBI IQLIK is the first and only anti-amyloid treatment to offer an at-home injection to help patients and care partners continue to treat this progressive, relentless disease after initial treatment of 18 months

Eisai Co., Ltd. (Headquarters: Tokyo, CEO: Haruo Naito, "Eisai") and Biogen Inc. (Nasdaq: BIIB, Corporate headquarters: Cambridge, Massachusetts, CEO: Christopher A. Viehbacher, "Biogen")...

Lecanemab subcutaneous autoinjector has the potential to become a new expanded treatment option for patients with early Alzheimer's disease, their care partners and healthcare professionals, with...

Data Showed LEQEMBI Slowed Clinical Decline by 1.75 Points on CDR-SB at Four Years Compared to the Natural History of Alzheimer's Disease 56% of Patients with Low Tau Continued to Demonstrate...

Latest findings from Eisai's robust Alzheimer's disease (AD) pipeline include results from lecanemab long-term data, an immunoassay for measuring amyloid-β protofibrils in cerebrospinal fluid,...

Eisai Inc. announced today that the company will present the latest findings from its robust neurology portfolio, including data on real-world experience and continued maintenance dosing with our...

Eisai Co., Ltd. (Headquarters: Tokyo, CEO: Haruo Naito, "Eisai") and Biogen Inc. (Nasdaq: BIIB, Corporate headquarters: Cambridge, Massachusetts, CEO: Christopher A. Viehbacher, "Biogen")...

Once every four weeks maintenance dosing may be easier for patients and care partners to continue treatment Alzheimer's disease progression does not stop after plaque clearance; ongoing treatment...

LEQEMBI is the only FDA-approved anti-amyloid therapy that potentially could offer the convenience of a subcutaneous injection with at-home administration option TOKYO and CAMBRIDGE, Mass., Jan....

Eisai Co., Ltd. (Headquarters: Tokyo, CEO: Haruo Naito, "Eisai") and Biogen Inc. (Nasdaq: BIIB, Corporate headquarters: Cambridge, Massachusetts, CEO: Christopher A. Viehbacher, "Biogen")...

Eisai Co., Ltd. (Headquarters: Tokyo, CEO: Haruo Naito, "Eisai") and Biogen Inc. (Nasdaq: BIIB, Corporate headquarters: Cambridge, Massachusetts, CEO: Christopher A. Viehbacher, "Biogen")...

Eisai Inc. announced today its sponsorship of the upcoming webinar, "Lessons Learned from Central Disorders of Hypersomnolence and Future Directions", a key educational event from the Sleep...

Eisai Co., Ltd. (Headquarters: Tokyo, CEO: Haruo Naito, "Eisai") and Biogen Inc. (Nasdaq: BIIB, Corporate headquarters: Cambridge, Massachusetts, CEO: Christopher A. Viehbacher, "Biogen")...

Eisai Co., Ltd. (Headquarters: Tokyo, CEO: Haruo Naito, "Eisai") and Biogen Inc. (Nasdaq: BIIB, Corporate headquarters: Cambridge, Massachusetts, CEO: Christopher A. Viehbacher, "Biogen")...

-Eisai Initiates Phase II Clinical Study on Sporadic Early Alzheimer's Disease- TOKYO, Oct. 30, 2024 /PRNewswire/ -- Eisai Co. Ltd (Headquarters: Tokyo, CEO: Haruo Naito, "Eisai") announced today...