An interventional study of Phototherapy in Dementia, sponsored by Mayo Clinic. Not yet recruiting at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-07-16.
Sponsored by Mayo Clinic · Not applicable, Interventional, and Treatment
The purpose of this research is to determine whether the use of phototherapy can help reduce behavioral and psychological symptoms, including agitation in people with dementia.
2,172 studies on the registry are indexed under Dementia; 541 are open to participants now.
This study's planned enrollment of 70 is below the median of 83 across 1,629 interventional studies indexed under Dementia.
Browse Dementia studies →Mayo Clinic is the lead sponsor of 3,218 studies on the registry; 670 are open to participants now.
Of its 445 completed or terminated interventional studies of FDA-regulated products, 313 (70%) have results posted.
Counted across the registry records on this site, refreshed daily.
Exclusion Criteria:
Patients in the phototherapy arm will receive bright light therapy for 60 minutes, 3 times per day for 5 days.
Other: Phototherapy
Patients in the standard of care group will not receive an intervention.
Bright light therapy will be provided via the Verilux HappyLight. The unit will be placed on a mobile bedside table, at eye level, 60 cm from the patient. Patients will receive phototherapy in 60 minute sessions, 3 times daily for 5 days.
Feasibility of 5-day phototherapy protocol
Feasibility will be defined as the percentage of eligible patients who choose to enroll in the study out of total patients approached.
Time frame: Day 5
Acceptability of 5-day phototherapy protocol
Accessibility will be defined as the percentage of study participants to complete at least one session per day of the 5-day protocol
Time frame: Day 5
Tolerability of 5-day phototherapy protocol
Tolerability will be defined as percentage of patients to rate phototherapy as 'very tolerable' based on being asked "Considering all aspects of your experience, how would you rate the overall tolerability of the phototherapy?" The response options are: very tolerable, somewhat tolerable, neutral, somewhat intolerable, and very intolerable.
Time frame: Day 5
Sleep duration
Sleep duration will be reported by nursing staff in hours.
Time frame: Day 5
Plan to share: No
This study is not yet recruiting, as verified in Jul 2026. You cannot join it, but the record below documents what was studied.
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Mayo Clinic