- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04504721
Effects of Blue-enriched White Light Therapy in Patients With Fibromyalgia
October 18, 2023 updated by: Pei-Shan, Tsai, Taipei Medical University
Effects of Blue-enriched White Light Therapy on Sleep Quality, Depression, Psychomotor Vigilance, and Symptom Severity in Patients With Fibromyalgia
Fibromyalgia is a chronic condition with an unclear etiology.
The syndrome includes symptoms such as chronic musculoskeletal pain, cognitive dysfunctions, fatigue, sleep disorders, and circadian rhythm disturbances.
Fibromyalgia-related pain is associated with a substantial socioeconomic burden including greater health care costs and productivity loss from work.
Light therapy can improve sleep quality and sleep architecture, advance sleep phases and reduce pain sensitivity and that the effect of light therapy on mood and cognitive function have been widely supported.This randomized controlled study aims to examine the effects of light therapy on sleep quality, depressive symptoms, psychomotor vigilance performance, and overall symptom severity in patients with fibromyalgia.
Study Overview
Status
Enrolling by invitation
Conditions
Intervention / Treatment
Detailed Description
Fibromyalgia is a central sensitivity syndrome characterized by chronic widespread pain, cognitive dysfunctions, fatigue, sleep disorders, and circadian dysregulation.
Light therapy can improve sleep quality and sleep architecture, advance sleep phases and reduce pain sensitivity and that the effect of light therapy on mood and cognitive function have been widely supported, research into the effect of light therapy for patients with fibromyalgia who often suffer from sleep and mood disturbance, pain, and cognitive impairments is of both research interest and therapeutic implications.
This study will use a randomized, parallel group, assessor-blind, waiting-list controlled trial design.
The primary outcome is symptom severity.
The secondary outcomes include: sleep quality; depressive symptoms; psychomotor vigilance and attention; and sleep phase changes.
The intervention will take 8 weeks with 30 minutes exposure at awakening to blue-enriched white light.
A total of 80 participants, aged 20 to 64, with a diagnosis of fibromyalgia will be enrolled and randomly assigned into one of the two parallel groups: an intervention and a waiting list group.
For the intervention group, outcomes will be assessed at baseline, immediately after, and 2 months after the 8-week intervention period.
For the waiting list group, outcomes will be assessed at baseline, immediately after the 8-week waiting period, and 2 months after the intervention period.
Study Type
Interventional
Enrollment (Estimated)
80
Phase
- Not Applicable
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
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Taipei, Taiwan
- Bio-Behavior Research Laboratory
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Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
20 years to 64 years (Adult)
Accepts Healthy Volunteers
Yes
Description
Inclusion Criteria:
- Participants must be aged from 20 to 64 years old.
- Participants must read and understand Chinese language.
- Participants must be outpatients.
- Participants must have a confirmed diagnosis of fibromyalgia according to the 2016 American College of Rheumatology diagnostic criteria.
Exclusion Criteria:
- Subjects who are admitted to the hospital.
- Subjects who have other significant chronic disease, past or present psychosis, or bipolar disorder.
- Subjects who have ophthalmic pathology (cataract, macular degeneration, glaucoma, retinitis pigmentosa), eye surgery, diseases affecting the retina (retinopathy, diabetes, herpes, etc.), color blind, or taking photosensitizing medications.
- Subjects who are taking opiates or benzodiazepines.
- Subjects who work night shifts, or travel across more than two time zones in the month prior to enrolling in the study.
- Subjects who are pregnant.
- Subjects who have used light treatment in the last 6 months.
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Crossover Assignment
- Masking: Single
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Light therapy group
The intervention will take 8 weeks with 30 minutes exposure at awakening to blue-enriched white light.
|
The intervention will take 8 weeks with 30 minutes exposure at awakening to blue-enriched white light.
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No Intervention: Waiting list group
Participants who are randomly assigned into the waiting list group will be told that they are on a waiting list to be enrolled in the study.
Participants will be provided with light therapy after the first posttest outcome assessments are completed.
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Fibromyalgia Impact Questionnaire-Revised Version
Time Frame: Baseline
|
Fibromyalgia symptom severity will be measured using the Fibromyalgia Impact Questionnaire-Revised Version (FIQR) .The FIQR contains a total of 21 individual questions in three domains: function, impact and symptom domains.
All questions are based on an 11-point numeric rating scale of 0 to 10, with '0' representing 'no difficulty' and '10' representing 'worst'.
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Baseline
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Fibromyalgia Impact Questionnaire-Revised Version
Time Frame: Immediately after the 8-week intervention period
|
Fibromyalgia symptom severity will be measured using the Fibromyalgia Impact Questionnaire-Revised Version (FIQR) .The FIQR contains a total of 21 individual questions in three domains: function, impact and symptom domains.
All questions are based on an 11-point numeric rating scale of 0 to 10, with '0' representing 'no difficulty' and '10' representing 'worst'.
|
Immediately after the 8-week intervention period
|
Fibromyalgia Impact Questionnaire-Revised Version
Time Frame: 2 months after the 8-week intervention period
|
Fibromyalgia symptom severity will be measured using the Fibromyalgia Impact Questionnaire-Revised Version (FIQR) .The FIQR contains a total of 21 individual questions in three domains: function, impact and symptom domains.
All questions are based on an 11-point numeric rating scale of 0 to 10, with '0' representing 'no difficulty' and '10' representing 'worst'.
|
2 months after the 8-week intervention period
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Sleep quality
Time Frame: Baseline
|
The Pittsburgh Sleep Quality Index (PSQI) is a self-administered questionnaire that assesses sleep quality over a 1-month time interval.
The seven components include subjective sleep quality, sleep latency, total sleep time, habitual sleep efficiency, sleep disorders, use of sleep medications, and daytime dysfunction.
All questions are scored on a 0-3 interval scale.
The global PSQI score is then calculated by totaling the seven component scores, providing an overall score ranging from 0 to 21, where higher scores denote a poorer sleep quality.
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Baseline
|
Sleep quality
Time Frame: Immediately after the 8-week intervention period
|
The Pittsburgh Sleep Quality Index (PSQI) is a self-administered questionnaire that assesses sleep quality over a 1-month time interval.
The seven components include subjective sleep quality, sleep latency, total sleep time, habitual sleep efficiency, sleep disorders, use of sleep medications, and daytime dysfunction.
All questions are scored on a 0-3 interval scale.
The global PSQI score is then calculated by totaling the seven component scores, providing an overall score ranging from 0 to 21, where higher scores denote a poorer sleep quality.
|
Immediately after the 8-week intervention period
|
Sleep quality
Time Frame: 2 months after the 8-week intervention period
|
The Pittsburgh Sleep Quality Index (PSQI) is a self-administered questionnaire that assesses sleep quality over a 1-month time interval.
The seven components include subjective sleep quality, sleep latency, total sleep time, habitual sleep efficiency, sleep disorders, use of sleep medications, and daytime dysfunction.
All questions are scored on a 0-3 interval scale.
The global PSQI score is then calculated by totaling the seven component scores, providing an overall score ranging from 0 to 21, where higher scores denote a poorer sleep quality.
|
2 months after the 8-week intervention period
|
Depressive symptoms
Time Frame: Baseline
|
The Beck Depression Inventory Version 2 (BDI-II) is a self-report 21-item questionnaire in which responses are rated on a 0 to 3 interval scale, with a higher score denoting mire frequent symptoms.
The possible score of BDI-II ranges from 0 to 63, with higher scores representing more sever ratings of depression.
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Baseline
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Depressive symptoms
Time Frame: Immediately after the 8-week intervention period
|
The Beck Depression Inventory Version 2 (BDI-II) is a self-report 21-item questionnaire in which responses are rated on a 0 to 3 interval scale, with a higher score denoting mire frequent symptoms.
The possible score of BDI-II ranges from 0 to 63, with higher scores representing more sever ratings of depression.
|
Immediately after the 8-week intervention period
|
Depressive symptoms
Time Frame: 2 months after the 8-week intervention period
|
The Beck Depression Inventory Version 2 (BDI-II) is a self-report 21-item questionnaire in which responses are rated on a 0 to 3 interval scale, with a higher score denoting mire frequent symptoms.
The possible score of BDI-II ranges from 0 to 63, with higher scores representing more sever ratings of depression.
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2 months after the 8-week intervention period
|
Psychomotor vigilance and attention
Time Frame: Baseline
|
Psychomotor vigilance and attention will be measured using the Psychomotor Vigilance Task (PVT).
The visual stimulus and performance feedback are presented on the device.
|
Baseline
|
Psychomotor vigilance and attention
Time Frame: Immediately after the 8-week intervention period
|
Psychomotor vigilance and attention will be measured using the Psychomotor Vigilance Task (PVT).
The visual stimulus and performance feedback are presented on the device.
|
Immediately after the 8-week intervention period
|
Psychomotor vigilance and attention
Time Frame: 2 months after the 8-week intervention period
|
Psychomotor vigilance and attention will be measured using the Psychomotor Vigilance Task (PVT).
The visual stimulus and performance feedback are presented on the device.
|
2 months after the 8-week intervention period
|
Sleep phase assessment
Time Frame: Baseline
|
The Morningness-Eveningness Questionnaire (MEQ) is used to estimate phase preferences in circadian rhythms based on participants' self-descriptions.
timing.
Questions evaluate the time that individuals get up and go to bed, self-reported preferred times for physical and mental activity, and also the individual's subjective alertness.
MEQ scores can range from 16 to 86, with lower scores indicating eveningness or later circadian timing, and higher scores indicating morningness or earlier circadian timing.
|
Baseline
|
Sleep phase assessment
Time Frame: Immediately after the 8-week intervention period
|
The Morningness-Eveningness Questionnaire (MEQ) is used to estimate phase preferences in circadian rhythms based on participants' self-descriptions.
timing.
Questions evaluate the time that individuals get up and go to bed, self-reported preferred times for physical and mental activity, and also the individual's subjective alertness.
MEQ scores can range from 16 to 86, with lower scores indicating eveningness or later circadian timing, and higher scores indicating morningness or earlier circadian timing.
|
Immediately after the 8-week intervention period
|
Sleep phase assessment
Time Frame: 2 months after the 8-week intervention period
|
The Morningness-Eveningness Questionnaire (MEQ) is used to estimate phase preferences in circadian rhythms based on participants' self-descriptions.
timing.
Questions evaluate the time that individuals get up and go to bed, self-reported preferred times for physical and mental activity, and also the individual's subjective alertness.
MEQ scores can range from 16 to 86, with lower scores indicating eveningness or later circadian timing, and higher scores indicating morningness or earlier circadian timing.
|
2 months after the 8-week intervention period
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Collaborators
Investigators
- Study Chair: Pei-Shan Tsai, PhD, Taipei Medical University
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start (Actual)
May 22, 2020
Primary Completion (Estimated)
May 1, 2024
Study Completion (Estimated)
July 31, 2024
Study Registration Dates
First Submitted
August 6, 2020
First Submitted That Met QC Criteria
August 6, 2020
First Posted (Actual)
August 7, 2020
Study Record Updates
Last Update Posted (Actual)
October 23, 2023
Last Update Submitted That Met QC Criteria
October 18, 2023
Last Verified
October 1, 2023
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- N202003152
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
NO
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
No
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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