Living dossier · Competitive landscape

Tau in Alzheimer's disease

Primary identifiers
5
Sponsors tracked
5
Evidence types
2 of 3
Last refreshed
2026-07-28 · monthly

MightyRayn panel synthesis

OmniRayn’s reading of this landscape — our interpretation, not a registry fact

The most consequential item in this landscape is a dissociation rather than a drug. Post-hoc analysis of a long-running platform trial shows that the phosphorylated-tau species which respond to amyloid removal are not the ones tracking tangle pathology: MTBR-tau243 and p-tau205 keep rising however much plaque is cleared. That reframes tau from a downstream readout of amyloid into a target with its own clock, and it explains why the registry now shows anti-MTBR antibodies and tau imaging running alongside the amyloid programmes rather than behind them. Read the thinness here as a limit of the record, not the field — several tau-directed candidates in the clinic do not state their mechanism, so this page under-counts what is actually running.

Programs and primary evidence

SponsorAssetPhaseMechanismPrimary source
Bristol-Myers SquibbBMS-986446 (TargetTau-1)2anti-MTBR tau monoclonal antibody
  • NCT06268886Global proof-of-concept study of an anti-microtubule-binding-region tau antibody in early Alzheimer's disease
University of Pennsylvania[18F]-PI-2620 tau PET3PET imaging of tau accumulation
  • NCT05456503Imaging tau accumulation in frontotemporal lobar degeneration and atypical Alzheimer's disease
Eli Lilly and CompanyP-tau217 test (ANCHOR-AD)3plasma phosphorylated-tau biomarker for risk stratification
  • NCT07142954Longitudinal study assessing neurocognitive and biomarker change in individuals at risk of Alzheimer's symptoms
Washington University School of MedicineDIAN-TU post-hoc analysisdissociation of soluble p-tau species from tangle pathology
  • 10.1002/alz.70689p-tau217 and p-tau231 track amyloid plaque reduction, while MTBR-tau243 and p-tau205 rise independently of amyloid lowering
Axon NeuroscienceAADvac1active immunotherapy against the microtubule-binding region of tau

Method and limits

Want the analysis behind this landscape?

The public page is the map. The full dossier adds differentiation analysis, kill-tests and the whitespace read for this target — the parts we do not publish.