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Lecanemab Confirmatory Phase 3 Clarity AD Study Met Primary Endpoint

24 Sep, 2022

TOKYO and CAMBRIDGE, Eisai Co., Ltd.  & Biogen Inc. announced positive topline results from Eisai’s large global Phase 3 confirmatory Clarity AD clinical trial of lecanemab (development code: BAN2401), an investigational anti-amyloid beta (Aβ) protofibril antibody for the treatment of mild cognitive impairment (MCI) due to Alzheimer’s disease (AD) and mild AD (collectively known as early AD) with confirmed presence of amyloid pathology in the brain. 

  • 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 File for Traditional Approval In The U.S., and to Submit Marketing Authorization Applications in Japan And Europe by the End of Eisai FY2022, Which Ends on March 31, 2023

Lecanemab met the primary endpoint (CDR-SB: Clinical Dementia Rating-Sum of Boxes*) and all key secondary endpoints with highly statistically significant results. Eisai will discuss this data with regulatory authorities in the U.S., Japan and Europe with the aim to file for traditional approval in the US and for marketing authorization applications in Japan and Europe by the end of Eisai’s FY2022, which ends March 31, 2023. Additionally, Eisai will present the Clarity AD study results on November 29, 2022, at the Clinical Trials on Alzheimer’s Congress (CTAD), and publish the findings in a peer-reviewed medical journal.
In March 2022, Eisai began submitting application data, with the exception of Clarity AD data, to Japan’s Pharmaceuticals and Medical Devices Agency (PMDA) under the prior assessment consultation system with the aim of obtaining early approval for lecanemab so that people living with early AD may have access to the therapy as soon as possible.

Eisai serves as the lead of lecanemab development and regulatory submissions globally with both Eisai and Biogen co-commercializing and co-promoting the product and Eisai having final decision-making authority.

Reference: https://www.eisai.com/news/2022/news202271.html 


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