Bright Light Therapy as Possible Treatment Option for MS-Fatigue
Study Details
Study Description
Brief Summary
This study aims to investigate the effect of a 2-week trial of bright light therapy (BLT, 10.000 lx) on fatigue in multiple sclerosis (MS) patients. In this randomised placebo-controlled trial, the effect of bright light therapy will be compared to dim red light. MS-fatigue is quantified by patients using a visual analogue scale (VAS) and activity levels, subjective and objective sleep parameters and daytime sleepiness are measured.
Condition or Disease | Intervention/Treatment | Phase |
---|---|---|
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N/A |
Detailed Description
Materials and methods:
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visual analogue scale (4x/day for 6 weeks; measuring fatigue)
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wrist actigraphy (6 weeks)
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sleep diaries (6 weeks)
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polysomnography (2x)
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multiple sleep latency test (2x)
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4 subtests of the TAP (Testbatterie zur Aufmerksamkeitsprüfung; Alertness, Vigilance, Go/No-Go, Split Attention)
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questionnaires (Fatigue Severity Scale, Epworth Sleepiness Scale, Pittsburgh Sleep Quality Index, Beck Depression Inventory, Beck Anxiety Inventory, Modified Fatigue Impact Scale, Morningness-Eveningness Questionnaire)
Study Design
Arms and Interventions
Arm | Intervention/Treatment |
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Experimental: Bright white light
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Device: bright light therapy
using a bright light therapy device (10.000 lux) for 30min every morning for two weeks
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Placebo Comparator: Dim red light
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Device: dim red light
using the same device as the active group, but with an installed filter that dims light to <300 lux for 30min every morning for two weeks
|
Outcome Measures
Primary Outcome Measures
- Change in fatigue levels [Day 1, Day 14, Day 30, Day 46]
Improvement of MS-fatigue symptoms as measured with questionnaires (Fatigue Severity Scale; FSS, Modified Fatigue Impact Scale; MFIS and a visual analogue scale)
- Change in fatigue levels [Day 15, Day 31]
Improvement of MS-fatigue symptoms as measured with psychological testing (Testbatterie zur Aufmerksamkeitsprüfung; TAP)
Other Outcome Measures
- Change in nighttime sleep [Day 14, Day 30]
Improvement in nighttime sleep as measured with polysomnography (PSG)
- Change in daytime sleepiness [Day 15, Day 31]
Improvement of sxcessive daytime sleepiness as measured using a multiple sleep latency test (MSLT) and Epworth Sleepiness Scale (ESS)
- Change in activity levels [Day 1 through day 46]
Rapprochement of activity levels according to circadian rhythms
- Change in psychological well-being [Day 1, Day 14, Day 30, Day 46]
Improvement in depression and anxiety scores as measured by Beck Depression Inventory (BDI) and Beck Anxiety Inventory (BAI)
Eligibility Criteria
Criteria
Inclusion Criteria:
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MS patients who suffer from fatigue
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Age between 18 and 65 years old
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FSS Score of 36 or greater
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ESS Score of 12 or greater
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MEQ Score between 31 and 69
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BDI Score lower than 19
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BAI Score lower than 27
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EDSS lower than 4
Exclusion Criteria:
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sleep disorders (periodic limb movement disorders, obstructive or central sleep apnea, REM sleep behavior disorders)
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change of antidepressive/fatigue influencing/sleep influencing/photosensizing/MS medication within the preceding 4 weeks
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clinical MS-relapse within the preceding 4 weeks
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consumption of alcohol: more than 1 glass per day
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consumption of caffeine: more than 4 cups per day
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current shift work
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Jet lag (travelled across two or more time zones within 90 days before study screening
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Retinopathy or other visual diseases/abnormalties
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Traumatic brain injury within the preceding 5 years
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pregnant or lactating
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Participation in another clinical trial at the same time
Contacts and Locations
Locations
Site | City | State | Country | Postal Code | |
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1 | Medical University of Vienna | Vienna | Austria | 1090 |
Sponsors and Collaborators
- Medical University of Vienna
- National Bank of Austria
Investigators
None specified.Study Documents (Full-Text)
None provided.More Information
Publications
None provided.- AP18005ONB