An interventional study of Naturalistic LED light and Standard/traditional lighting in Dementia and Cognitive Impairment, sponsored by Zealand University Hospital. Status unknown. Open to participants aged 65 Years and older. Per ClinicalTrials.gov, last updated 2022-09-10.
Sponsored by Zealand University Hospital · Not applicable, Interventional, and Prevention
Light stimulates the human visual system and the biological functions in the retina, also referred to as non-visual responses, e.g. hormone production. Exposure to the correct light composition can produce acute alertness and increase good sleep quality (1).
In this study, subjects will be exposed to 24-hour LED naturalistic lighting (intervention) or traditional lighting (control) during all days of hospitalization. Subjects will be blinded to the intervention as they will not be told if they are admitted to an intervention patient room or a control patient room.
The primary outcome measure is cortisol levels measured in saliva samples. Secondary outcome measures are delirium rates, length of admission, use of constant observation, mortality and adverse advent.
It is estimated that 80 subjects will be included in the study.
During hospitalization, patient rooms are often associated with poor lighting conditions, and patients are often not exposed to outdoor activities. Many patients have difficulties sleeping during hospital admission, which affects health outcomes and potentially leads to prolonged admission and rehabilitation and a higher risk of developing delirium. However, the circadian rhythm can be modified with LED light, as this technology can reach sufficient levels to affect the human melanopic equivalent daylight illuminance (Melanopic EDI). A high melanopic EDI during the day is supportive for alertness and a good night's sleep. A good night's sleep is essential to prevent the development of delirium. LED lighting, which can give melanopic EDI, is called naturalistic light (1,2).
In this study, subjects will be exposed to 24-hour LED naturalistic lighting (intervention) or traditional lighting of fluorescent tubes (control) during all days of hospitalization. Subjects will be blinded to the intervention as they will not be told if they are admitted to an intervention patient room or a control patient room. The study includes subjects who are diagnosed with dementia (mild-moderate) or older adults (+65 years) who have cognitive impairments. Subjects will be screened before inclusion using a mini-mental state examination (MMSE) (3) and clinical examination by trained specialists.
To test the effect of exposure to circadian light, the study is designed as a single-centre exploratory parallel-arm randomized controlled trial. The trial will be thoroughly reported according to the CONSORT (4) statement extended guidelines
The primary outcome measure is cortisol levels measured in saliva samples. The samples are collected two times each day during hospitalization. One sample is collected at \<30 minutes after the subject has woken in the morning (during the morning cortisol peak) and one sample in the evening when the highest level is expected.
Secondary outcome measures are delirium rates, length of admission, need for escape prevention, mortality, use of antipsychotics and adverse advent e.g. patient related fall incidents. Delirium rates are collected by performing a confusion assessment method (CAM) (5) score two times a day. Additional measurements are collected in patient charts.
To reach sufficient power, we estimate that 80 subjects will be included in the study. 40 subjects are admitted to the intervention room (with naturalistic lighting), and 40 are admitted to the control room (traditional/standard lighting conditions).
2,172 studies on the registry are indexed under Dementia; 540 are open to participants now.
This study's planned enrollment of 80 is close to the median of 83 across 1,629 interventional studies indexed under Dementia.
Browse Dementia studies →Zealand University Hospital is the lead sponsor of 234 studies on the registry; 51 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Exclusion Criteria:
Exposure to 24-hour LED naturalistic lighting
Other: Naturalistic LED light
Exposure to standard/traditional lighting setting with fluorescent tubes
Other: Standard/traditional lighting
Naturalistic LED light (bright light therapy) which affects Melanopic Equivalent Daylight Illuminance.
Standard/tradtional lighting environment with fluorescent tubes
Cortisol
Cortisol levels measured in saliva samples
Time frame: During intervention period
Delirium
Delirium measured in CAM score
Time frame: During intervention period
Length of admission
Length of admission collected from patient charts
Time frame: During intervention period
Pharmaceutics
Use of pharmaceutics during hospitalization. Collected from patient charts.
Time frame: During intervention period
Mortality
Mortality rates collected from patient charts
Time frame: During intervention period
Adverse advent
Adverse advent, e.g. patient related fall incidents, collected from patient charts
Time frame: During intervention period
Constant observation
Need of constant observation from health professionals, collected from patient charts
Time frame: During intervention period
No study locations are listed for this record.
Plan to share: No
This study is status unknown, as verified in Aug 2022. You cannot join it, but the record below documents what was studied.
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Zealand University Hospital