Light and the Effect on Metabolic Syndrome and Alzheimer's Disease
Light, Metabolic Syndrome and Alzheimer's Disease: A Non-Pharmocological Approach
Light, Metabolic Syndrome and Alzheimer's Disease: A Non-Pharmocological Approach
Sponsor study identifier
interventional
61
1 country
3
Study Start
November 19, 2018
Actual (reported)Primary Completion
May 31, 2025
Actual (reported)Study Completion
May 31, 2025
Actual (reported)This study's main hypothesis is that a delivering a tailored lighting intervention (TLI) will provide a successful means for promoting circadian entrainment and treating metabolic disease and inflammation in patients with mild cognitive impairment (MCI) and Alzheimer's disease (AD) and Alzheimer's disease and related dementias (ADRD). As such, the proposed studies have the potential to provide important insights into the link between AD/ADRD and type 2 diabetes (T2DM) by identifying the disruption of circadian rhythms as a key component in the metabolic impairment. Preliminary data from ongoing studies demonstrates a beneficial effect of light treatment on sleep and depression. If positive results are observed, the potential also exists to transform the manner in which homes, assisted living facilities, and nursing homes are lighted by delivering a simple, practical, non-pharmacological intervention to promote entrainment, improve sleep, and reduce metabolic disease in AD and mild AD MCI patients. This randomized, placebo-controlled, crossover study involving 60 AD/ADRD patients who live in controlled environments (i.e., assisted living facilities and nursing homes), will investigate whether 8 weeks of exposure to a TLI designed to increase circadian entrainment improves sleep, mood, inflammatory markers, and metabolic control, compared to a control, circadian-inactive light.
Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.
May 31, 2025
Actual (reported)Click on a node to explore related trials.
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Dates and qualifiers reported by the registry. Estimated dates do not confirm that a milestone has occurred.
November 19, 2018
Actual (reported)December 12, 2018
Actual (reported)December 17, 2018
Actual (reported)May 31, 2025
Actual (reported)May 31, 2025
Actual (reported)Change in Glucose Area Under the Curve
change in glucose from baseline will be assessed using an oral glucose tolerance test
once during weeks 1 (baseline), 5, 9, 18 (second baseline), 22, and 26
Change in sleep disturbance
once during weeks 1 (baseline), 5, 9, 18 (second baseline), 22, and 26
Tailored Lighting intervention (TLI). The active TLI will provide high circadian stimulation during the day produced by light sources that provide moderate light levels of spectra that are tuned to the sensitivity of the circadian system. The active lighting intervention will be in place for 8 weeks. Following an 8 week washout period, the participants will see the placebo control intervention for 8 weeks.
The placebo lighting intervention is designed to have no effect on the circadian system. The control intervention will be in place for 8 weeks. Following an 8 week washout period, the participants will see the active tailored lighting intervention for 8 weeks.
Lighting Intervention - active or placebo
Registry-reported names are shown in full. Names without a link have not yet been matched to a Syfrah profile.
Rutgers University
New Brunswick, New Jersey, 08854, United States
Icahn School of Medicine at Mount Sinai
Albany, New York, 12204, United States
Icahn School of Medicine
New York, New York, 10029, United States
Mariana Figueiro, PhD
Icahn School of Medicine at Mount Sinai
61 participants (actual enrollment reported by the registry).
First Submitted
December 12, 2018
First Posted
December 17, 2018
Study Start
November 19, 2018
Contact the study team to confirm eligibility.
Primary Completion
May 31, 2025
Actual (reported)Study Completion
May 31, 2025
Actual (reported)Last Updated
May 11, 2026
Record last verified: 2026-05
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Source: ClinicalTrials.gov.
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