CClinicalTrials.gg
CompletedNCT02800850Updated Jun 17, 2016

Bright Light Therapy for Individuals With Dementia

An interventional study of Bright Light and Placebo Light in Dementia, sponsored by Radford University. Completed. Open to participants aged 60 Years and older. Per ClinicalTrials.gov, last updated 2016-06-17.

Sponsored by Radford University · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
71
Allocation
Randomized
Ages
60 Years and older
Sex
All
01

Study summary

Many older adults with dementia living in long-term care facilities experience depression and agitation, which cause angst and personal suffering. Prior to this research, evidence was inconclusive but indicated that bright light exposure may reduce depression and agitation in long-term care residents with dementia. The purpose of this study was to determine if the degree of improvement in depression and agitation scores over the course of eight weeks was significantly greater in persons with dementia receiving bright light exposure than in persons with dementia receiving placebo light exposure. Sixty individuals participated in the study, with 30 in the bright light group and 30 in the low level light group.

02

Conditions studied

  • Dementia

Browse trials for

Keywords

  • Dementia
  • Depression
  • Agitation
  • Bright Light
03

In context

Dementia

2,172 studies on the registry are indexed under Dementia; 540 are open to participants now.

This study's enrollment of 71 is below the median of 83 across 1,629 interventional studies indexed under Dementia.

Browse Dementia studies →

Lead sponsor

Radford University is the lead sponsor of 4 studies on the registry; 1 is open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
60 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Eligibility criteria

Inclusion criteria were age 60 or older; diagnosis of dementia; ophthalmology screening indicating that the individual was able to perceive light and did not have cataracts, glaucoma, macular degeneration, or retinal problems; able to sit up and keep eyes open; and not too restless to sit for 30 minutes.

Exclusion criteria were age 59 or younger; no diagnosis of dementia; presence of cataracts, glaucoma, macular degeneration, or retinal problems; unable to sit up and keep eyes open; and too restless to sit for 30 minutes.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Investigator, Outcomes assessor)
Enrollment
71 participants (actual)

Study arms

  • Experimental
    Bright Light Group

    Bright Light Exposure

    Behavioral: Bright Light

  • Placebo comparator
    Control Group

    Placebo Light Exposure

    Behavioral: Placebo Light

Interventions

  • BehavioralBright Light
  • BehavioralPlacebo Light
06

What researchers measure

Primary outcomes

  1. Depressive Symptom Assessment for Older Adults

    Time frame: After the eight-week experiment

  2. Cohen-Mansfield Agitation Inventory (Frequency)

    Time frame: After the eight-week experiment

07

Study locations

No study locations are listed for this record.

08

References and documents

Publications

  • Onega LL, Pierce TW, Epperly L. Effect of Bright Light Exposure on Depression and Agitation in Older Adults with Dementia. Issues Ment Health Nurs. 2016 Sep;37(9):660-667. doi: 10.1080/01612840.2016.1183736. Epub 2016 Jun 2. PubMed 27254531 ↗

Individual participant data

Plan to share: No

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jun 17, 2016, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT02800850
Lead sponsor
Radford University
Collaborators
Commonwealth Care of Roanoke, Inc., Virginia Center on Aging (ARDRAF)
Responsible party
Lisa L. Onega (Professor of Nursing, Radford University) — Principal investigator
First posted
Jun 15, 2016
Start date
Jul 2013
Primary completion
Jul 2014
Completion
Jul 2014
Last update
Jun 17, 2016

Study contacts

Lisa L Onega, PhD, RN, MBA
principal investigator · Radford University

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jun 2016. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion