Flashing lights and tones could stop Alzheimer's before it starts
NCT ID NCT05776641
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether a device that flashes light and plays sound at 40Hz can prevent Alzheimer's disease in people at risk. 200 adults aged 55-90 with a family history of Alzheimer's will use the device at home for 60 minutes daily over 12 months. Researchers will measure changes in brain amyloid and tau proteins using PET scans to see if the stimulation slows or stops disease progression.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
GENUS light and sound device (40Hz gamma entrainment)
What this could lead to
If it works, this could point toward a simple, non-invasive way to prevent Alzheimer's disease in people with a family history.
What could go wrong
This is an early-stage study with no phase designation, so results are uncertain. The device may not reduce amyloid or tau buildup in humans as it did in mice, and daily use for a year may be challenging.
Disclaimer
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the original study
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Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
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Study contacts
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
Locations
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Massachusetts General Hospital
RECRUITINGBoston, Massachusetts, 02114, United States
Contact Phone: •••-•••-•••• Email: •••••@•••••
Contact
Contact Phone: •••-•••-•••• Email: •••••@•••••
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Massachusetts Institute of Technology
RECRUITINGCambridge, Massachusetts, 02139, United States