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Fujirebio to Seek Year-End Approval for Japan’s First Alzheimer’s Blood Test

The company plans an adjunct diagnostic that infers amyloid buildup from two plasma proteins, offering a less burdensome option than PET or spinal-fluid exams.

Overview

  • Fujirebio said it will apply to Japan’s Ministry of Health, Labour and Welfare before the end of 2025 for approval of its blood-based Alzheimer’s diagnostic.
  • If cleared, the product would become the first domestically approved blood test for Alzheimer’s-type pathology in Japan.
  • The assay quantifies two plasma proteins and their ratio to estimate amyloid-beta accumulation associated with Alzheimer’s disease.
  • Fujirebio Holdings said blood testing reduces patient burden and can be performed more easily than amyloid PET imaging or cerebrospinal-fluid sampling.
  • The planned filing follows a U.S. decision in May 2025 that authorized a similar blood test as an adjunct diagnostic for adults 50 and older with cognitive symptoms.