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Life sciences · Interventional Study
ClinicalTrials.gov · October 20, 2026
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Interventional Study.
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Registry record from ClinicalTrials.gov (NCT07883291). This is a study registration, not published results. Lead sponsor: Penn State University. Recruitment status: NOT_YET_RECRUITING. Phase: NA. Study type: INTERVENTIONAL. Enrollment: 300 participants (ESTIMATED). Conditions: Alzheimer's Disease and Related Dementias, Alzheimer Disease and Related Dementias. Interventions: DEVICE: Smart Environmental Light (SmartEnLite). Primary outcome measures: Agitation level , Week 1:Baseline Week 3:During intervention/control Week 5:Immediately post intervention/control Week 7:2 weeks post intervention/control Week 9:During control/intervention Week 11:During control/intervention Week 13:Immediately post control/intervention; Depression level , Week 1:Baseline Week 3:During intervention/control Week 5:Immediately post intervention/control Week 7:2 weeks post intervention/control Week 9:During control/intervention Week 11:During control/intervention Week 13:Immediately post control/intervention; Apathy level , Week 1:Baseline Week 3:During intervention/control Week 5:Immediately post intervention/control Week 7:2 weeks post intervention/control Week 9:During control/intervention Week 11:During control/intervention Week 13:Immediately post control/intervention; Frequency and Severity of Behavioral and Psychological Symptoms of Dementia (BPSD) , Week 1:Baseline Week 3:During intervention/control Week 5:Immediately post intervention/control Week 7:2 weeks post intervention/control Week 9:During control/intervention Week 11:During control/intervention Week 13:Immediately post control/intervention; Sleep Timing , Week 1:Baseline Week 3:During intervention/control Week 5:Immediately post intervention/control Week 7:2 weeks post intervention/control Week 9:During control/intervention Week 11:During control/intervention Week 13:Immediately post control/intervention; Mood Status , Week 1:Baseline Week 3:During intervention/control Week 5:Immediately post intervention/control Week 7:2 weeks post intervention/control Week 9:During control/intervention Week 11:During control/intervention Week 13:Immediately post control/intervention; Sleep Duration , Week 1:Baseline Week 3:During intervention/control Week 5:Immediately post intervention/control Week 7:2 weeks post intervention/control Week 9:During control/intervention Week 11:During control/intervention Week 13:Immediately post control/intervention; Sleep Quality , Week 1:Baseline Week 3:During intervention/control Week 5:Immediately post intervention/control Week 7:2 weeks post intervention/control Week 9:During control/intervention Week 11:During control/intervention Week 13:Immediately post control/intervention; Sleep stability of rest-activity rhythms , Week 1:Baseline Week 3:During intervention/control Week 5:Immediately post intervention/control Week 7:2 weeks post intervention/control Week 9:During control/intervention Week 11:During control/intervention Week 13:Immediately post control/intervention; Occurrence of Adverse Effects , Week 1:Baseline Week 3:During intervention/control Week 5:Immediately post intervention/control Week 7:2 weeks post intervention/control Week 9:During control/intervention Week 11:During control/intervention Week 13:Immediately post control/intervention. Brief summary: The goal of this clinical trial is to learn if the Smart Environmental Lighting (SmartEnLite) can help improve behaviors and sleep among residents with dementia in nursing homes. The main questions it aims to answer are: * What is the effect of SmartEnLite on mood and behaviors? * What is the effect of SmartEnLite on sleep? * Would the effect of SmartEnLite on sleep affect its effect on mood and behaviors? Researchers will compare the SmartEnLite to the usual light in nursing homes to see if the SmartEnLite works to improve behaviors and sleep in nursing home residents with dementia. Participants will: * Participate in the study for 13 weeks with SmartEnLite for 4 weeks and their usual light. * Wear a sensor for 13 weeks to measure their sleep and light exposure. * Be observed for mood, behaviors, and reactions to the lights every other week.