Light Therapy Treatment in Parkinson's Disease Patients With Daytime Somnolence
Effects of Bright Light Treatment on Daytime Sleepiness and Nocturnal Sleep in Patients With Parkinson's Disease
1 other identifier
interventional
27
1 country
1
Brief Summary
Study objectives are to determine the efficacy, safety and tolerability of bright light treatment in Parkinson's Disease (PD) patients with daytime sleepiness. Thirty PD patients will be enrolled and equally randomized to bright light or dim-red light treatment. Objective (actigraphy) and subjective (sleep logs/scales) sleep measures will be collected through the baseline and intervention phases of the study. The primary outcome measure will be the change in the Epworth Sleepiness Scale (ESS) comparing the bright light treatment with dim-red light treatment. Secondary outcome measures will include the Multiple Sleep Latency Test (MSLT), global Pittsburgh Sleep Quality Index (PSQI) score, Parkinson's Disease Sleep Scale (PDSS) score, and actigraphy measures. A variety of exploratory analyses will examine the effects of bright light treatment on fatigue, depression, quality of life, cognition, and motor disability. Hypothesis: Bright light exposure will diminish daytime sleepiness and improve night-time sleep in PD patients with daytime sleepiness.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable
Started Nov 2007
Longer than P75 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
November 1, 2007
CompletedFirst Submitted
Initial submission to the registry
April 18, 2011
CompletedFirst Posted
Study publicly available on registry
April 19, 2011
CompletedPrimary Completion
Last participant's last visit for primary outcome
October 1, 2012
CompletedStudy Completion
Last participant's last visit for all outcomes
October 1, 2012
CompletedResults Posted
Study results publicly available
September 5, 2014
CompletedMarch 1, 2023
February 1, 2023
4.9 years
April 18, 2011
July 22, 2014
February 4, 2023
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Change in the Epworth Sleepiness Scale (ESS) Scores Comparing the Bright Light Exposure With Dim-red Light Exposure.
ESS score range is 0-24; lower ESS scores indicate less daytime sleepiness; higher ESS scores indicate more severe sleepiness ESS will be taken and compared at screening and week 4 visits between the bright light exposure and dim-red light exposure groups.
baseline and 4 weeks
Study Arms (2)
Bright White
ACTIVE COMPARATORExposure to bright white light treatment.
Dim red light
PLACEBO COMPARATORExposure to dim red light treatment.
Interventions
Bright Light Treatment (Sun Ray Sunbox SB-558) using light intensity of 10,000 lux, administered during two 1 hour periods during the day.
Dim red light box administered during two 1 hour periods during the day using
Eligibility Criteria
You may qualify if:
- Diagnosis of idiopathic PD as defined by the United Kingdom Parkinson's Disease Society Brain Bank Criteria
- Hoehn and Yahr stage of 2 to 4 in the "on" state
- Excessive daytime sleepiness as defined by the Epworth Sleepiness Scale (ESS) score of greater than or equal to 12 points
- Stable PD medication regimen for at least 4 weeks prior to study screening
- Willing and able to give written informed consent
You may not qualify if:
- Atypical parkinsonian syndromes
- Significant sleep disordered breathing (defined as an apnea-hypopnea index \>15 events/hr of sleep on screening PSG)
- Significant periodic limb movement disorder (defined as a PLM arousal index\>10 events/hr of sleep on screening PSG) and REM sleep behavior disorder (based on the presence of both clinical symptomatology as well as intermittent loss of REM atonia on screening PSG)
- Cognitive impairment indicated by the mini-mental status examination (MMSE) score of less than 24
- Presence of depression defined as the Beck Depression Inventory (BDI) score \>14
- Untreated hallucinations or psychosis (drug-induced or spontaneous)
- Use of hypno-sedative drugs for sleep or stimulants during the daytime
- Use of antidepressants unless the patient has been on a stable dose for at least three months
- Visual abnormalities that may interfere with light therapy, such as significant cataracts, narrow angle glaucoma or blindness
- Travel through 2 time zones within 90 days prior to study screening
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Northwestern Universitylead
- National Parkinson Foundationcollaborator
Study Sites (1)
Northwestern University
Chicago, Illinois, 60611, United States
Related Publications (35)
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PMID: 28241159DERIVED
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Results Point of Contact
- Title
- Aleksandar Videnovic
- Organization
- Massachusetts General Hospital
Study Officials
- PRINCIPAL INVESTIGATOR
Aleksandar Videnovic, MD, MS
Northwestern University
Publication Agreements
- PI is Sponsor Employee
- No
- Restrictive Agreement
- No
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- TRIPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Assistant Professor of Neurology
Study Record Dates
First Submitted
April 18, 2011
First Posted
April 19, 2011
Study Start
November 1, 2007
Primary Completion
October 1, 2012
Study Completion
October 1, 2012
Last Updated
March 1, 2023
Results First Posted
September 5, 2014
Record last verified: 2023-02