Light therapy for patients with Alzheimer's disease

Phase 2 - The Use of Rhythmic Light Therapy to Entrain Gamma Oscillations and the Circadian System in Patients With Alzheimer's Disease

Not applicable Interventional Icahn School of Medicine at Mount Sinai · NCT05016219

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

PhaseNot applicable
Study typeInterventional
Enrollment120 (estimated)
Ages55 Years and up
SexAll
SponsorIcahn School of Medicine at Mount Sinai Academic / other
Locations2 sites (Menands, New York and 1 other locations)
Trial IDNCT05016219 on ClinicalTrials.gov

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.

Who should consider this trial

Good fit: Ideal candidates are individuals diagnosed with mild cognitive impairment or mild Alzheimer's disease who also experience sleep disturbances.

Not a fit: Patients taking sleep medications or those with severe sleep disorders may not benefit from this study.

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 performed: Other studies have shown promise with light therapy approaches for cognitive and sleep-related issues, suggesting potential for success in this novel application.

Eligibility criteria

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 this trial is running

Menands, New York and 1 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Mild Cognitive ImpairmentLight TreatmentCircadian RhythmsGamma Wave EntrainmentRhythmic LightSleepCognition
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.