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Novo Nordisk’s Oral Semaglutide Fails to Slow Alzheimer’s in Dual Phase 3 Trials

Full results will be presented at next week’s CTAD meeting after the company canceled a planned one-year extension.

Overview

  • Top-line data from the EVOKE and EVOKE+ studies showed no statistically significant slowing of clinical progression versus placebo on measures such as the CDR‑SB.
  • The randomized, double-blind trials enrolled 3,808 adults with mild cognitive impairment or mild dementia due to Alzheimer’s and tested oral semaglutide (Rybelsus) on top of standard care.
  • Although some Alzheimer’s-related biomarkers improved, those changes did not translate into measurable clinical benefit.
  • Novo Nordisk discontinued a planned one-year extension and characterized the program as a high-risk effort from the outset.
  • Shares fell roughly 9%–12% to multi-year lows following the announcement; fuller datasets are slated for CTAD (Dec 1–4) and AD/PD in March 2026.