Medicine Press release

Pfizer and Eisai Commence Co-promotion of "NURTEC(R)" for the Acute Treatment and Prophylaxis (Preventive Treatment) of Migraine
Jul 27, 2026 22:50 JST

Pfizer Japan Inc. (Headquarters: Tokyo, President and Representative Director: Hiroo Igarashi, "Pfizer") and Eisai Co., Ltd. (Headquarters: Tokyo, CEO: Haruo Naito, "Eisai") announced today that the companies will commence the co-promotion of the oral calcitonin gene-related peptide (CGRP) receptor antagonist Nurtec(R) OD Tablet 75mg (generic name: rimegepant sulfate hydrate, hereinafter "Nurtec") in Japan from September 1, 2026.
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Marketing Authorization Application for In-house Developed Insomnia Drug Lemborexant Accepted for Evaluation by European Medicines Agency (EMA)
Jul 17, 2026 23:24 JST

Eisai Co., Ltd. announced today that the European Medicines Agency (EMA) has accepted for evaluation a marketing authorization application (MAA) for its in-house-discovered and developed orexin receptor antagonist lemborexant (generic name) for the treatment of adult patients with chronic insomnia.
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Marketing Authorization Application for In-house Developed Insomnia Drug Lemborexant Accepted for Evaluation by European Medicines Agency (EMA)
Jul 17, 2026 23:24 JST

LEQEMBI(R) Real-World LEADER Study Presented at AAIC(R) 2026 Finds Over 75% of Early Alzheimer's Patients Enrolled in the Study Remained Stable and Nearly 7% Improved Over an Average of 17 Months of Treatment
Jul 15, 2026 23:18 JST

Eisai Co., Ltd. and Biogen Inc. (Nasdaq: BIIB) announced today that results from the real-world Lecanemab in Early Alzheimer's Disease (LEADER) Study show that nearly 83% of early Alzheimer's disease (AD) patients enrolled in the study remained stable (75.9%) or improved (6.6%) while receiving LEQEMBI(R) therapy over an average of 17 months.
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FDA Approves LEQEMBI IQLIK(R) (lecanemab-irmb) Subcutaneous Injection as an Initiation Dose for Early Alzheimer's Disease
Jul 15, 2026 22:51 JST

Eisai Co., Ltd. and Biogen Inc. (Nasdaq: BIIB), announced that the U.S. Food and Drug Administration (FDA) has approved a supplemental Biologics License Application (sBLA) for a once-weekly lecanemab-irmb subcutaneous injection (U.S. brand name:
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FDA Approves LEQEMBI IQLIK(R) (lecanemab-irmb) Subcutaneous Injection as an Initiation Dose for Early Alzheimer's Disease
Jul 15, 2026 22:51 JST

Eisai Presents Latest Findings Showed Etalanetug Reduced Alzheimer's Disease Tau Tangle-Specific Plasma Biomarker MTBR-tau243 at Alzheimer's Association International Conference(R) (AAIC(R)) 2026
Jul 15, 2026 22:21 JST

Eisai Co., Ltd. today announced the latest findings on etalanetug (development code: E2814) showed that this investigational anti-MTBR antibody reduced levels of plasma eMTBRtau243, a key biomarker of Alzheimer's disease (AD) tau tangle pathology.
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