Plain-English translation of NCT05776641 on ClinicalTrials.gov ↗ · Source last updated · Translation generated · How we translate trials
Read our Alzheimer Disease research guide →This study doesn't follow the usual testing phases — it may be an observational study or a different type of research.
This trial is testing a device called GENUS that delivers light and sound stimulation at specific frequencies to see if it can slow down or prevent Alzheimer's disease in people who are currently thinking clearly but have signs of Alzheimer's buildup in their brains and a family history of the disease. Participants will use the device at home for one year while researchers monitor their brain health through imaging scans, memory tests, and blood work. The goal is to learn whether this non-invasive stimulation can reduce harmful changes in the brain before memory problems start.
Alzheimer's disease begins silently in the brain years before people notice memory problems, and there are currently no proven ways to stop it in people without symptoms. Researchers believe that specific light and sound frequencies may help clear harmful protein buildup in the brain and prevent cognitive decline.
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You will visit Massachusetts General Hospital in Boston 4–6 times over 13 months for baseline assessments, a check-in at 6 months, and final evaluations after 12 months. At home, you will use the GENUS device for 60 minutes each day while sitting in front of a screen with entertainment videos. During each visit, you'll have brain imaging scans (MRI and PET), memory and thinking tests, blood draws, and possibly a spinal fluid sample if you agree. You'll also wear a fitness-tracking watch throughout the study to monitor your sleep and activity, and researchers won't tell you whether your device is delivering active stimulation or a placebo version.
AI-generated summary from trial data · Jun 18, 2026 · Not medical advice
United States