Press Releases

If approved, LEQEMBI IQLIK would be the first and only anti-amyloid treatment to offer at-home injection options for initiation and maintenance dosing for this progressive, relentless disease FDA...

Long-term LEQEMBI treatment suggests potential to delay disease progression from Mild Cognitive Impairment (MCI) to moderate Alzheimer's disease by up to 8.3 years in low-amyloid group who started...

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...

Five-year survival data from pivotal Phase 3 Study 309/KEYNOTE-775 trial evaluating lenvatinib plus pembrolizumab in certain patients with advanced endometrial carcinoma Efficacy outcomes in...

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...

Multiple endometrial carcinoma abstracts to be presented, including long-term follow-up data for lenvatinib plus pembrolizumab in advanced disease from Study 309/KEYNOTE-775 Final bone metastases...

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,...

Long-Term Follow-Up Data from LEAP-002 Offers Insights into Hepatocellular Carcinoma Treatment Pipeline Data in Endometrial Carcinoma Among Studies to be Presented NUTLEY, N.J., May 20, 2025...

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...

-New testing method highlights link between protofibrils and biomarkers for neurodegeneration- -Patient and caregiver perspectives on five-year treatment with lecanemab - - Utilization of blood...

Eisai Co. Ltd (Headquarters: Tokyo, CEO: Haruo Naito, "Eisai") announced today that the company will present the latest findings on its Alzheimer's disease (AD) pipeline and research, including...

In the Phase 3 LEAP-012 trial, KEYTRUDA plus LENVIMA in combination with TACE reduced the risk of disease progression or death by 34% compared to TACE alone Late-breaking first interim analysis...

Late-breaking results from the Phase 3 LEAP-012 trial offer further insight into the treatment of patients with unresectable, non-metastatic hepatocellular carcinoma (HCC); data are selected for...

FOR GLOBAL MEDIA AND JOURNALISTS OUTSIDE THE EMEA REGION In Great Britain, lecanemab is indicated for the treatment of mild cognitive impairment and mild dementia due to Alzheimer's disease (AD)...

TOKYO and CAMBRIDGE, Mass., August 14, 2024 – Eisai Co., Ltd. (Headquarters: Tokyo, CEO: Haruo Naito, “Eisai”) and Biogen Inc. (Nasdaq: BIIB, Corporate headquarters: Cambridge,...

- 51% of No Tau / Low Tau Patients Showed Improved Cognition and Function Over Three Years; Only Lecanemab Has Clinical Data in No Tau / Low Tau Patient Group - Clinical Data and Biomarkers Show...

Latest findings from Eisai's robust Alzheimer's disease (AD) pipeline will be shared, including the importance of continued treatment of AD, which is a progressive neurodegenerative disease that...

Eisai Inc. announced today that screening for Study E2086-A001-101 (Study 101) to assess the efficacy, safety and tolerability of E2086, a novel selective orexin-2 receptor, is now registered on...

Eisai today announced a label update for LENVIMA, the orally available multiple receptor tyrosine kinase inhibitor discovered by Eisai, in the United States to include clinical efficacy data for...

Eisai today announced results from a post-hoc analysis from the Phase 3 REFLECT trial, which looked at efficacy outcomes characterized by depth of response in patients with unresectable...

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

Biomarker Analyses from Pivotal Phase 3 CLEAR Trial in Patients with Advanced Renal Cell Carcinoma Will Be Featured in an Oral Presentation Additional Data From Eisai's Pipeline Provide Insights...

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 the Company will present findings from its robust neurology portfolio, including data from the Phase 3 Clarity AD trial for LEQEMBI® (lecanemab-irmb), Eisai's...

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") announced today that its U.S. subsidiary Eisai Inc. has decided to invest up to 15 million USD in C2N Diagnostics LLC...

Eisai Co., Ltd. (Headquarters: Tokyo, CEO: Haruo Naito, "Eisai") announced today the company will present the latest findings on lecanemab (U.S. brand name: LEQEMBI®), Eisai's anti-amyloid beta...

Data from the Pivotal Phase 3 CLEAR Trial and Phase 2 KEYNOTE-B61 Trial Provide Further Insight into the Role of Lenvatinib Plus Pembrolizumab as a First-Line Treatment Option for Patients with...

Longer-Term Efficacy and Safety Results from the Phase 3 LEAP-002 Trial Offer Additional Information About the First-Line Treatment of Patients with Unresectable Hepatocellular Carcinoma Data on...

INVESTIGATIONAL SUBCUTANEOUS FORMULATION CLEARS 14% MORE PLAQUE THAN IV, PHARMACOKINETICS (AUC) 11% HIGHER, AND SIMILAR ARIA RATES TO IV 76% OF PATIENTS SHOWED NO DECLINE AND 60% SHOWED CLINICAL...

Eisai Inc. and Biogen Inc. are honored to announce today that TIME has selected LEQEMBI® (lecanemab-irmb) as one of the Best Inventions of 2023 in the Medical Care category. LEQEMBI is the first...

Eisai Co. Ltd (Headquarters: Tokyo, CEO: Haruo Naito, "Eisai") announced today that the company will present new data from the phase 3 Clarity AD study for its Alzheimer's disease (AD) treatment...

Data from the Pivotal Phase 3 CLEAR and Study 309/KEYNOTE-775 Trials Provide Valuable Information About the Treatment of Patients with Advanced Renal Cell Carcinoma and Certain Types of Advanced...

Efforts Aimed to Help Sustain the Environment, Boost Employee Health & Wellness NUTLEY, N.J., Aug. 17, 2023 /PRNewswire/ -- Eisai Inc., the United States-based pharmaceutical subsidiary of Eisai...

Further Phase 3 analysis shows benefits of lecanemab on both amyloid-beta and tau, two underlying pathological hallmarks of Alzheimer's disease New data on subcutaneous formulation shows promising...

Eisai Co. Ltd (Headquarters: Tokyo, CEO: Haruo Naito, "Eisai") announced today that the company will present the latest findings on its Alzheimer's disease (AD) pipeline and research, including...

The first and only approved treatment shown to reduce the rate of disease progression and to slow cognitive and functional decline in adults with Alzheimer's disease The Centers for Medicare &...

Peripheral and Central Nervous System Drugs Advisory Committee voted based on data from large global confirmatory Phase 3 Clarity AD clinical trial in patients living with early Alzheimer's...

Final Pre-Specified Overall Survival Analysis from the Pivotal Phase 3 CLEAR Trial in Patients with Advanced Renal Cell Carcinoma Will Be Featured in an Oral Presentation NUTLEY, N.J., May 23,...

Initiative Features Compelling Stories Celebrating That People are "Made of More" Than Their Head and Neck Cancer Diagnosis, Along With Resources to Help People Impacted Find Support and Community...

Treatment with Lecanemab Resulted in a Delay of 2 to 3 Years in the Mean Time to Progression to More Severe Stages of Alzheimer's Disease, Compared with Standard of Care Alone Subgroup Analysis...

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")...

Study Findings in Patients with Recurrent or Advanced Endometrial Carcinoma Who Were Rechallenged With Platinum Chemotherapy Will Be Featured in an Oral Plenary Session Additional Subgroup...

Presentations Explore ARIA with the Use of Antiplatelets or Anticoagulants and Isolated ARIA-H in Patients from Eisai's Lecanemab Phase 3 Confirmatory Clarity AD Study in Early Alzheimer's Disease...

Eisai Co., Ltd. (Headquarters: Tokyo, CEO: Haruo Naito, "Eisai") today announced the publication of updated results from an evaluation estimating the societal value of anti-amyloid-beta (Aβ)...

Confirmatory Phase 3 Clarity AD data to be evaluated by FDA in determining whether to convert accelerated approval of LEQEMBI to a traditional approval Priority Review accelerates FDA review time...

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

Highlights Include an Update from the Dose Escalation Part of a Phase 1 Study Evaluating the Novel Anticancer Agent, E7386, in Advanced Solid Tumors Including Colorectal Cancer Research from the...

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")...

Submission for traditional approval follows FDA accelerated approval of LEQEMBI on the same day, and is based on data from the confirmatory Phase 3 Clarity AD clinical trial TOKYO and CAMBRIDGE, Mass.

Based on hhc (human health care) concept, our corporate philosophy, Eisai is committed to improve patients health outcomes and quality of life, simplify care delivery, increase health system...

LEQEMBI™ (lecanemab-rimb) has the potential to make a difference for people living with early Alzheimer's disease (AD), their loved ones and healthcare professionals, and was recently approved...

Accelerated Approval is based on Phase 2 data showing a reduction in amyloid-beta plaques in early AD patients treated with LEQEMBI™ Treatment with LEQEMBI should be initiated in patients with...

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”) announced today that it has entered into an agreement to transfer the United States (U.S.) commercial rights for the...

Eisai Co., Ltd. (Headquarters: Tokyo, CEO: Haruo Naito, "Eisai") announced today that Eisai and Washington University School of Medicine in St. Louis have entered into a comprehensive research...

Eisai announced today that new study results on its in-house discovered and developed anticancer agent eribulin mesylate (HALAVEN®, "eribulin") will be presented during the 2022 San Antonio...

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 Co., Ltd. (Headquarters: Tokyo, CEO: Haruo Naito, "Eisai") announced today that the company will have a total of 34 posters, including the latest data on its in-house discovered and...

Eisai Co., Ltd. (Headquarters: Tokyo, CEO: Haruo Naito, "Eisai") will present the efficacy, safety and biomarker findings from the company's Phase 3 confirmatory Clarity AD clinical trial for...

Data Include Provider-Reported Best Overall Response (BOR), Progression-Free Survival and Overall Survival in U.S. Patients NUTLEY, N.J., Oct. 21, 2022 /PRNewswire/ -- Eisai today announced final...

ALL KEY SECONDARY ENDPOINTS ALSO MET, DEMONSTRATING HIGHLY STATISTICALLY SIGNIFICANT RESULTS PROFILE OF AMYLOID-RELATED IMAGING ABNORMALITIES (ARIA) INCIDENCE WAS WITHIN EXPECTATIONS EISAI AIMS TO...

RAHWAY, N.J. and NUTLEY, N.J., Sept. 10, 2022 – Merck (NYSE: MRK), known as MSD outside of the United States and Canada, and Eisai today announced the first presentation of results from the...

Analysis Evaluates Efficacy of Eribulin in Metastatic HER2-low Breast Cancer Across Three Studies (Presentation: #259P) NUTLEY, N.J., Sept. 10, 2022 /PRNewswire/ -- Eisai announced today results...

Late-Breaking Presentation on the Phase 3 LEAP-002 Study Investigating the Lenvatinib plus Pembrolizumab Combination Versus Lenvatinib Monotherapy in Patients With Unresectable Hepatocellular...

C2N Diagnostics and Eisai Inc. today announced the Companies have entered into a memorandum of understanding that will seek to build awareness about how blood-based assays for cognitive...

State-of-the-art Eisai US hhceco Center underscores New Jersey as the premier life science hub NUTLEY, N.J., Aug. 18, 2022 /PRNewswire/ -- Eisai Inc., the U.S. pharmaceutical subsidiary of Eisai...

Campaign Provides Educational Resources on Liver Cancer and Encourages People to Make Some Daily Adjustments to Help Support Liver Health NUTLEY, N.J., Aug. 4, 2022 /PRNewswire/ -- Baseball legend...

Eisai Co., Ltd. (Headquarters: Tokyo, CEO: Haruo Naito, "Eisai") and Biogen Inc. (Nasdaq: BIIB, Corporate headquarters: Cambridge, Massachusetts, CEO: Michel Vounatsos, "Biogen") announced that...

RAHWAY, N.J. and NUTLEY, N.J., August 3, 2022 – Merck (NYSE: MRK), known as MSD outside the United States and Canada, and Eisai today announced that the Phase 3 LEAP-002 trial investigating...

Thomas D. Fagan Jr. Appointed Vice President, U.S. Alzheimer's Disease Commercial at Eisai Inc. NUTLEY, N.J., July 27, 2022 /PRNewswire/ -- Eisai Inc., the U.S. pharmaceutical subsidiary of Eisai...

Eisai Co. Ltd (Headquarters: Toyoko, CEO: Haruo Naito, "Eisai") announced today that the company will present research from its Alzheimer's disease (AD) pipeline, including new data for lecanemab...

Eisai Co., Ltd. (Headquarters: Tokyo, CEO: Haruo Naito, “Eisai”) announced today that lecanemab, an anti-amyloid-β protofibril antibody being developed by Eisai, has no connection regarding...

Eisai Co., Ltd. (Headquarters: Tokyo, CEO: Haruo Naito, "Eisai") and Biogen Inc. (Nasdaq: BIIB, Corporate headquarters: Cambridge, Massachusetts, CEO: Michel Vounatsos, "Biogen") announced today...