NCT07386808 · ACTIVE NOT RECRUITING
Improvement of Sleep Disorders in Patients With Alzheimer's Disease After Sunlight Exposure Therapy.
This study is testing whether daily sunlight exposure helps improve sleep problems in people who already have Alzheimer's disease. Researchers will track sleep patterns over 14 days using questionnaires and recordings. It is listed as Phase NA, meaning it is an observational study rather than a controlled drug trial — it is gathering real-world data, not yet proving a treatment works.
You may qualify if
- Diagnosed with Alzheimer's disease
- CDR: 0.5 - 1 point
- Conscious and able to cooperate with behavioral interventions and telephone interviews
- Complaints of sleep disturbances, including: daytime sleepiness, difficulty falling asleep, fragmented sleep, nighttime awakening, nocturnal wandering, and sunset syndrome.
- A cohabiting family member is required as the primary caregiver, who understands and cooperates with this intervention and has signed a consent form.
- If the patient is already taking sleeping pills, the maintenance dose will not be adjusted.
You're excluded if
- Individuals with other brain injury conditions, such as cerebral palsy, brain tumors, traumatic brain injury, or stroke.
- Individuals with visual impairments (assessed by comparing numbers with fingers at a distance of 30 cm upon admission).
- Institutional residents.
- Individuals living alone.
- Individuals unable to cooperate with behavioral interventions and telephone interviews.
The sponsor's own eligibility wording, lightly reformatted. The study team makes the final eligibility decision — worth discussing with your doctor.
Eligibility criteria as of 2026-07-17