Eisai Presents Latest Findings Showed Etalanetug Reduced Alzheimer's Disease Tau Tangle-Specific Plasma Biomarker MTBR-tau243 at Alzheimer's Association International Conference® (AAIC®) 2026
PR Newswire
TOKYO, July 13, 2026
Measuring the plasma eMTBR-tau243 biomarker may serve as a practical, less invasive method of capturing Alzheimer's disease-specific pathological changes and may play an important role in etalanetug's future clinical development TOKYO, July 13, 2026 /PRNewswire/ -- Eisai Co., Ltd. today announced the latest findings on etalanetug (development code: E2814) showed that this investigational anti-MTBR antibody reduced levels of plasma eMTBR-tau243, a key biomarker of Alzheimer's disease (AD) tau tangle pathology. The investigational compound etalanetug may have the potential to bind to the microtubule-binding region (MTBR) of tau protein and prevent the seeding and propagation of tau pathology in the brain. Tau tangles are a hallmark of AD and are believed to be strongly associated with memory loss, cognitive decline, and disease progression.1 The findings were presented during the Featured Research Session, "Mechanisms Beyond Amyloid: Etalanetug Reduces Tau Tangle-Specific Plasma Biomarker eMTBR-tau243 in Dominantly Inherited Alzheimer's Disease (DIAD)," at the Alzheimer's Association International Conference® (AAIC®) 2026 in London and online.
