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Improvement of Sleep Disorders in Patients With Alzheimer's Disease After Sunlight Exposure Therapy.

An Analysis of the Improvement of Sleep Disorders in Patients With Alzheimer's Disease After Sunlight Exposure Therapy.

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07386808
Enrollment
60
Registered
2026-02-04
Start date
2026-05-13
Completion date
2026-12-31
Last updated
2026-07-17

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Alzheimer's Disease (AD), Sleep Disorders, Circadian Rhythm

Brief summary

This observational study aimed to understand the effect of intervention A on sleep disorders in individuals with Alzheimer's disease receiving sunlight therapy. The primary question of the study was: Does sunlight therapy improve sleep disorders in Alzheimer's disease? Participants will complete a questionnaire, undergo sunlight therapy. They were informed that sun exposure therapy could effectively improve sleep, and behavioral interventions were discussed to develop a health education plan. Patients received monthly telephone support and encouragement from the time of admission until the next follow-up visit. Three months after admission (until the next follow-up visit), patients completed questionnaires including the Pittsburgh Sleep Quality Index (PSQI), the Neuropsychiatric Inventory (NPI), and the Quality of Life-Alzheimer's Disease (QOL-AD) questionnaire.

Interventions

Participants will complete a questionnaire, undergo sunlight therapy. They were informed that sun exposure therapy could effectively improve sleep, and behavioral interventions were discussed to develop a health education plan. Patients received monthly telephone support and encouragement from the time of admission until the next follow-up visit. Three months after admission (until the next follow-up visit), patients completed questionnaires including the Pittsburgh Sleep Quality Index (PSQI), the Neuropsychiatric Inventory (NPI), and the Quality of Life-Alzheimer's Disease (QOL-AD) questionnaire.

Sponsors

National Taiwan University Hospital
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SEQUENTIAL
Primary purpose
SUPPORTIVE_CARE
Masking
NONE

Eligibility

Sex/Gender
ALL
Healthy volunteers
No

Inclusion criteria

1. Diagnosed with Alzheimer's disease 2. CDR: 0.5 - 1 point 3. Conscious and able to cooperate with behavioral interventions and telephone interviews 4. Complaints of sleep disturbances, including: daytime sleepiness, difficulty falling asleep, fragmented sleep, nighttime awakening, nocturnal wandering, and sunset syndrome. 5. A cohabiting family member is required as the primary caregiver, who understands and cooperates with this intervention and has signed a consent form. 6. If the patient is already taking sleeping pills, the maintenance dose will not be adjusted.

Exclusion criteria

1. Individuals with other brain injury conditions, such as cerebral palsy, brain tumors, traumatic brain injury, or stroke. 2. Individuals with visual impairments (assessed by comparing numbers with fingers at a distance of 30 cm upon admission). 3. Institutional residents. 4. Individuals living alone. 5. Individuals unable to cooperate with behavioral interventions and telephone interviews.

Design outcomes

Primary

MeasureTime frameDescription
Pittsburgh Sleep Quality Index, PSQIon enrollment days, three months after admission (until the next follow-up visit).The Pittsburgh Sleep Quality Index (PSQI) assesses sleep quality. It has seven dimensions: sleep quality, sleep latency, sleep duration, sleep efficiency, sleep disturbance, medication use, and daytime activity impairment. A higher PSQI score indicates poorer sleep quality. The total score ranges from 0 to 21, with a minimum score of 0, indicating very good sleep quality over the past month. Lower scores indicate better sleep quality, while a total score of 5 or below is generally considered to indicate fair sleep quality.

Countries

Taiwan

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 18, 2026