Light therapy for patients with Alzheimer's disease
Official title: Phase 2 - The Use of Rhythmic Light Therapy to Entrain Gamma Oscillations and the Circadian System in Patients With Alzheimer's Disease
Run by Icahn School of Medicine at Mount Sinai · NCT05016219 · Data updated 2026-11-12
This study is testing if special blue light therapy can help improve sleep and thinking skills in people with mild Alzheimer's disease and mild cognitive impairment.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 55 Years and up |
| Sex | All |
| Enrollment | 120 (estimated) |
| Sponsor | Icahn School of Medicine at Mount Sinai Academic / other |
| Locations | 2 sites (Menands, New York and 1 other locations) |
| Status | Recruiting |
| Started | August 22, 2023 |
| Main results expected | March 31, 2027 |
| Study ends | July 31, 2027 |
| Registry record updated | May 29, 2026 |
| Trial ID | NCT05016219 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are individuals diagnosed with mild cognitive impairment or mild Alzheimer's disease who also experience sleep disturbances.
✕Probably not a fit
Patients taking sleep medications or those with severe sleep disorders may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This study investigates the effects of rhythmic light therapy on patients with mild cognitive impairment and mild Alzheimer's disease. Participants will be randomly assigned to one of four groups to experience different lighting conditions, including both active and placebo light treatments. The intervention involves exposure to narrowband blue light designed to stimulate circadian rhythms, compared to a placebo red light. Assessments will be conducted weekly over an 8-week period to evaluate cognitive function and sleep quality.
Why it matters
Potential benefit: If successful, this therapy could improve cognitive function and sleep quality in patients with Alzheimer's disease.
How similar studies have gone: Other studies have shown promise with light therapy approaches for cognitive and sleep-related issues, suggesting potential for success in this novel application.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Participants must be diagnosed with mild cognitive impairment or mild Alzheimer's disease, as defined by a Montreal Cognitive Assessment score between 17 and 25; * Have sleep disturbance indicated by a score \>5 on the Pittsburgh Sleep Quality Index * Participants must reside in their homes, independent living, or assisted living facilities Exclusion Criteria: * Participants taking sleep medication * Residence in a skilled nursing facility or long-term care * Obstructing cataracts, macular degeneration, and blindness * Severe sleep apnea or restless leg syndrome * History of severe epilepsy
Where it's running
-
Light and Health Research Center
Menands, New York, United States Recruiting -
Icahn School of Medicine at Mount Sinai
New York, New York, United States Recruiting
Study contacts
- Principal investigator: Mariana Figueiro, PhD — Icahn School of Medicine at Mount Sinai
- Study coordinator: Barbara Plitnick, BSN
- Email: barbara.plitnick@mountsinai.org
- Phone: 518-242-4603
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.