Alzheimer’s patients could be treated with nasal spray, study finds

July 23, 2025

A new study conducted by Wake Forest University School of Medicine found that an insulin nasal spray can help treat Alzheimer's patients. Wake Forest University reported the results in a press release.

Key findings:

  • The spray delivered insulin to “11 key brain regions associated with memory and cognition.”
  • Participants that were classified as “cognitively normal” responded to the insulin nasal spray differently.
  • Those classified as experiencing mild cognitive impairment showed “rapid initial uptake followed by quicker clearance” during treatment.
  • ptau217 levels and cardiovascular factors influenced how women responded to the insulin nasal spray.
  • Side effects were mild: minor headaches were experienced by two participants.