Eisai and Biogen announced that Eisai has initiated a rolling submission to the FDA of a Biologics License Application (BLA) for lecanemab (BAN2401), the company's investigational anti-amyloid beta (Aβ) protofibril antibody, for the treatment of early Alzheimer's disease (early AD).
The BLA is being submitted under the accelerated approval pathway and is primarily based on clinical, biomarker and safety data from the Phase 2b clinical trial (Study 201) in people with early AD and confirmed amyloid pathology. The lecanemab Phase 2b trial results demonstrated a high degree of Aβ plaque lowering and consistent reduction of clinical decline across several clinical endpoints.
The correlation between the extent of Aβ plaque reduction and effect on clinical endpoints in Study 201 further supports Aβ as a surrogate endpoint that is reasonably likely to predict clinical benefit. AD is a serious, progressive and devastating disease with few treatment options. Eisai is utilizing the accelerated approval pathway after discussion with the FDA and aims to bring a new treatment option to people living with early AD, their families and healthcare professionals.
In June 2021, lecanemab was granted Breakthrough Therapy designation, which is an FDA program intended to expedite the development and review of medicines for serious or life threating conditions. Eisai has an agreement with the FDA to submit the BLA for lecanemab as a rolling submission. This agreement allows completed portions of the application to be submitted to the FDA for review on an ongoing basis. After all portions are submitted to the FDA and the agency accepts the BLA, the Prescription Drug User Fee Act (PDUFA) action date (target date for completion of examination) will be set.
"It is our vision that patients and their families have choice and access to multiple treatment options for Alzheimer's disease. The rolling submission of lecanemab for FDA review under the accelerated pathway is a positive step toward that goal," said Michel Vounatsos, Chief Executive Officer at Biogen. "We believe that treatments directed at amyloid beta reduction in the brain have the potential to transform diagnosis and treatment of Alzheimer's disease. We look forward to continuing to work with Eisai to pioneer science, advance knowledge, and serve the needs of Alzheimer's patients."
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