Benefits of Tanning in Fibromyalgia Patients

Sponsor
Wake Forest University (Other)
Overall Status
Completed
CT.gov ID
NCT00447083
Collaborator
(none)
19
1
4
40
0.5

Study Details

Study Description

Brief Summary

  • To establish whether ultraviolet light exposure acutely reduces perceptions of pain in patients with fibromyalgia.

  • To establish whether a series of UV light exposures has a cumulative effect on fibromyalgia pain.

Condition or Disease Intervention/Treatment Phase
  • Device: UVB
  • Procedure: Non-UVB
N/A

Detailed Description

Fibromyalgia is a common chronic disorder characterized by widespread pain and fatigue. It occurs primarily in women, especially women of childbearing age. The effectiveness of treatment for this disorder is limited, and alternative medical treatments are commonly used.

Ultraviolet (UV) light exposure gives a sense of relaxation. It is unknown whether UV exposure has any effect on pain, particularly in patients with fibromyalgia. Through studies performed with RO3 funding from the National Institute of Drug Abuse (NIDA), we demonstrated that in frequent tanners, appearance is less important than UV-induced relaxation in motivating tanning behavior. Moreover, we determined that UV light has reinforcing properties apart from any psychosocial benefits of having a tan. One subject in our study reported low back pain relief from the UV exposure condition.

This is a two-year proposal that is the beginning of a long-term plan to assess whether indoor tanning ultraviolet light exposure has a therapeutic effect for patients with chronic pain. To this end, we will determine the effect of UV light on fibromyalgia pain in a controlled, double blind clinical trial of UV exposure. This approach is carefully designed to separate the effects of UV exposure on pain from potential confounds associated with the tanning procedure, including any perceived benefits of having a tan. The results of this study will increase our understanding of the specific influence of UV light on persistence in tanning behavior.

Study Design

Study Type:
Interventional
Actual Enrollment :
19 participants
Allocation:
Randomized
Intervention Model:
Crossover Assignment
Masking:
Double (Participant, Investigator)
Primary Purpose:
Treatment
Official Title:
A Pilot Study of the Effect of Ultraviolet Light on Pain in Persons With Fibromyalgia Syndrome
Study Start Date :
May 1, 2005
Actual Primary Completion Date :
Sep 1, 2008
Actual Study Completion Date :
Sep 1, 2008

Arms and Interventions

Arm Intervention/Treatment
Experimental: UVB First

Subjects with fibromyalgia will undergo 6 tanning sessions (3/week x 2 weeks) at which they will be exposed in tanning beds with UV. The dose of UV (time of exposure) will be progressively increased from 3 minutes to 9 minutes over the 6 visits to acclimate subjects to UV light. Before and after every tanning session the subject will complete the pain questionnaire. Subjects in this group will be randomized to receive UVB tanning bed treatment first, then switch to the non-UVB treatment.

Device: UVB
UVB exposure by a tanning bed
Other Names:
  • Ultraviolet Light
  • Procedure: Non-UVB
    Non-UVB exposure by a tanning bed

    Placebo Comparator: Non-UVB First

    Subjects with fibromyalgia will undergo 6 tanning sessions (3/week x 2 weeks) at which they will be exposed in tanning beds with non-UV bulbs. The time of exposure will be progressively increased from 3 minutes to 9 minutes over the 6 visits to mirror UVB treatment. Before and after every tanning session the subject will complete the pain questionnaire. Subjects in this group will be randomized to receive non-UVB tanning bed treatment first, then switch to the UVB treatment.

    Device: UVB
    UVB exposure by a tanning bed
    Other Names:
  • Ultraviolet Light
  • Procedure: Non-UVB
    Non-UVB exposure by a tanning bed

    Experimental: UVB

    The subjects who complete the acclimation phase of the study will then be randomized to 3 times/week treatments for 6 weeks with a fixed dose (10 min) of UVB.

    Device: UVB
    UVB exposure by a tanning bed
    Other Names:
  • Ultraviolet Light
  • Placebo Comparator: Non-UVB

    The subjects who complete the acclimation phase of the study will then be randomized to 3 times/week treatments for 6 weeks with a fixed dose (10 min) of non-UVB exposure

    Procedure: Non-UVB
    Non-UVB exposure by a tanning bed

    Outcome Measures

    Primary Outcome Measures

    1. Pain Relief Success Rates (Phase I) [2 weeks]

      Percentage of exposures that showed pain relief (2 point improvement in Likert scale) in the 11 point Likert scale.

    2. Pain Score- Likert Scale(Phase II) [6 weeks]

      Pain will be assessed on an 11-point pain scale where 0=no pain and 10=worst possible pain. A 30% improvement in reported pain will be considered a treatment "success.

    Secondary Outcome Measures

    1. Post-treatment Pain Scores- Likert Scale (Phase I) [2 weeks]

      As a secondary outcome, the post-treatment pain scores between the UV and non-UV exposures given on the first day the dose is given will be compared. Pain will be assessed on an 11-point pain Likert scale where 0=no pain and 10=worst possible pain

    2. Pain Scores of the UV and Non-UV Exposure (Phase II) [4 weeks post-treatment]

      The pain scores were assessed using a Likert Scale. Pain will be assessed on an 11-point pain Likert scale where 0=no pain and 10=worst possible pain.

    Eligibility Criteria

    Criteria

    Ages Eligible for Study:
    25 Years to 60 Years
    Sexes Eligible for Study:
    All
    Accepts Healthy Volunteers:
    No
    Inclusion Criteria:
    • Fibromyalgia patients who meet the fibromyalgia criteria, and who have been diagnosed with fibromyalgia by a board certified rheumatologist. The fibromyalgia criteria {as defined by the American College of Rheumatology (ACR)} require the patient to have: at least 3 months of widespread pain defined as: bilateral; above and below the waist, including axial skeletal pain; and pain to palpation with 4kg of pressure at a minimum of 11 out of 18 predefined tender points.

    • Ideally, patients should not be taking medication for treatment of fibromyalgia, and they should not be taking psychoactive medications on an as needed basis for treatment of fibromyalgia. However, if patients are taking psychoactive or other medications for the treatment of fibromyalgia, then they should be on a stable dose, defined as no change in dosage in the 4 weeks prior to study enrollment.

    • Patients must agree to not partake in tanning bed UV exposure during the study.

    Exclusion Criteria:
    • Fitzpatrick skin type 1 ("never tan, always burn")

    • Past or present skin cancer

    • Current use of photosensitizing drugs (current use of photosensitizing drugs will be evaluated via a patient questionnaire at time of patient enrollment - see Appendix 1),, psychoactive medications (not a stable dose, defined as no change in dosage in the 4 weeks prior to study enrollment), or illicit drugs

    • Pregnant, planning to become pregnant, or breast feeding

    • Significant visual discrimination of UV versus non-UV conditions

    • Greater than 6 indoor tanning sessions over the past year

    • Concurrent photosensitive disease, positive antinuclear antibody test, positive anti-Smith antibody test, or positive anti-dsDNA test.

    Contacts and Locations

    Locations

    Site City State Country Postal Code
    1 Wake Forest University Health Sciences Winston-Salem North Carolina United States 27157

    Sponsors and Collaborators

    • Wake Forest University

    Investigators

    • Principal Investigator: Steven R. Feldman, M.D., Ph.D., Wake Forest University Health Sciences

    Study Documents (Full-Text)

    None provided.

    More Information

    Publications

    None provided.
    Responsible Party:
    Wake Forest University
    ClinicalTrials.gov Identifier:
    NCT00447083
    Other Study ID Numbers:
    • II-CDR-Fibromyalgia
    First Posted:
    Mar 14, 2007
    Last Update Posted:
    Nov 13, 2018
    Last Verified:
    Oct 1, 2018
    Individual Participant Data (IPD) Sharing Statement:
    No
    Plan to Share IPD:
    No
    Studies a U.S. FDA-regulated Drug Product:
    No
    Studies a U.S. FDA-regulated Device Product:
    Yes
    Keywords provided by Wake Forest University
    Additional relevant MeSH terms:

    Study Results

    Participant Flow

    Recruitment Details
    Pre-assignment Detail
    Arm/Group Title Phase I - UVB First Phase I - Non-UVB First Phase II - UVB Exposure Phase II -Non-UVB
    Arm/Group Description Subjects with fibromyalgia will undergo 6 tanning sessions (3/week x 2 weeks) at which they will be exposed in tanning beds with UV. The dose of UV (time of exposure) will be progressively increased from 3 minutes to 9 minutes over the 6 visits to acclimate subjects to UV light. Before and after every tanning session the subject will complete the pain questionnaire. Subjects in this group will be randomized to receive UVB tanning bed treatment first, then switch to the non-UVB treatment. UVB: UVB exposure by a tanning bed Subjects with fibromyalgia will undergo 6 tanning sessions (3/week x 2 weeks) at which they will be exposed in tanning beds with non-UV bulbs. The time of exposure will be progressively increased from 3 minutes to 9 minutes over the 6 visits to mirror UVB treatment. Before and after every tanning session the subject will complete the pain questionnaire. Subjects in this group will be randomized to receive non-UVB tanning bed treatment first, then switch to the UVB treatment. UVB: UVB exposure by a tanning bed Part of the subjects who complete the acclimation phase of the study ( Phase I) will then be randomized to 3 times/week treatments for 6 weeks with a fixed dose (10 min) of UVB. Part of the subjects who complete the acclimation phase of the study ( Phase I) will then be randomized to 3 times/week treatments for 6 weeks with a fixed dose (10 min) of non-UVB exposure in Phase II.
    Period Title: Phase I
    STARTED 10 9 0 0
    COMPLETED 10 9 0 0
    NOT COMPLETED 0 0 0 0
    Period Title: Phase I
    STARTED 0 0 8 8
    COMPLETED 0 0 7 7
    NOT COMPLETED 0 0 1 1

    Baseline Characteristics

    Arm/Group Title UVB First Non-UVB First Total
    Arm/Group Description Subjects with fibromyalgia will undergo 6 tanning sessions (3/week x 2 weeks) at which they will be exposed in tanning beds with UV. The dose of UV (time of exposure) will be progressively increased from 3 minutes to 9 minutes over the 6 visits to acclimate subjects to UV light. Before and after every tanning session the subject will complete the pain questionnaire. Subjects in this group will be randomized to receive UVB tanning bed treatment first, then switch to the non-UVB treatment. UVB: UVB exposure by a tanning bed Subjects with fibromyalgia will undergo 6 tanning sessions (3/week x 2 weeks) at which they will be exposed in tanning beds with non-UV bulbs. The time of exposure will be progressively increased from 3 minutes to 9 minutes over the 6 visits to mirror UVB treatment. Before and after every tanning session the subject will complete the pain questionnaire. Subjects in this group will be randomized to receive non-UVB tanning bed treatment first, then switch to the UVB treatment. UVB: UVB exposure by a tanning bed Total of all reporting groups
    Overall Participants 10 9 19
    Age (Count of Participants)
    <=18 years
    0
    0%
    0
    0%
    0
    0%
    Between 18 and 65 years
    10
    100%
    9
    100%
    19
    100%
    >=65 years
    0
    0%
    0
    0%
    0
    0%
    Sex: Female, Male (Count of Participants)
    Female
    10
    100%
    9
    100%
    19
    100%
    Male
    0
    0%
    0
    0%
    0
    0%
    Race and Ethnicity Not Collected (Count of Participants)
    Count of Participants [Participants]
    0
    0%
    Region of Enrollment (participants) [Number]
    United States
    10
    100%
    9
    100%
    19
    100%

    Outcome Measures

    1. Primary Outcome
    Title Pain Relief Success Rates (Phase I)
    Description Percentage of exposures that showed pain relief (2 point improvement in Likert scale) in the 11 point Likert scale.
    Time Frame 2 weeks

    Outcome Measure Data

    Analysis Population Description
    [Not Specified]
    Arm/Group Title UVB Exposure Non-UVB Exposure
    Arm/Group Description Subjects with fibromyalgia will undergo 6 tanning sessions (3/week x 2 weeks) at which they will be exposed in tanning beds with UV. The dose of UV (time of exposure) will be progressively increased from 3 minutes to 9 minutes over the 6 visits to acclimate subjects to UV light. Before and after every tanning session the subject will complete the pain questionnaire. Subjects in this group received UVB tanning bed treatment. UVB: UVB exposure by a tanning bed Subjects with fibromyalgia will undergo 6 tanning sessions (3/week x 2 weeks) at which they will be exposed in tanning beds with non-UV bulbs. The time of exposure will be progressively increased from 3 minutes to 9 minutes over the 6 visits to mirror UVB treatment. Before and after every tanning session the subject will complete the pain questionnaire. Subjects in this group received non-UVB tanning bed treatment. UVB: UVB exposure by a tanning bed
    Measure Participants 19 19
    Number [percentage of exposures with relief]
    33
    16
    2. Primary Outcome
    Title Pain Score- Likert Scale(Phase II)
    Description Pain will be assessed on an 11-point pain scale where 0=no pain and 10=worst possible pain. A 30% improvement in reported pain will be considered a treatment "success.
    Time Frame 6 weeks

    Outcome Measure Data

    Analysis Population Description
    [Not Specified]
    Arm/Group Title UVB Exposure Non-UVB
    Arm/Group Description The subjects who complete the acclimation phase of the study will then be randomized to 3 times/week treatments for 6 weeks with a fixed dose (10 min) of UVB. The subjects who complete the acclimation phase of the study will then be randomized to 3 times/week treatments for 6 weeks with a fixed dose (10 min) of non-UVB exposure
    Measure Participants 7 7
    Mean (Standard Error) [score on a scale]
    4.55
    (0.29)
    4.95
    (0.24)
    3. Secondary Outcome
    Title Post-treatment Pain Scores- Likert Scale (Phase I)
    Description As a secondary outcome, the post-treatment pain scores between the UV and non-UV exposures given on the first day the dose is given will be compared. Pain will be assessed on an 11-point pain Likert scale where 0=no pain and 10=worst possible pain
    Time Frame 2 weeks

    Outcome Measure Data

    Analysis Population Description
    [Not Specified]
    Arm/Group Title UVB Exposure Non-UVB Exposure
    Arm/Group Description Subjects with fibromyalgia will undergo 6 tanning sessions (3/week x 2 weeks) at which they will be exposed in tanning beds with UV. The dose of UV (time of exposure) will be progressively increased from 3 minutes to 9 minutes over the 6 visits to acclimate subjects to UV light. Before and after every tanning session the subject will complete the pain questionnaire. Subjects in this group received UVB tanning bed treatment. UVB: UVB exposure by a tanning bed Subjects with fibromyalgia will undergo 6 tanning sessions (3/week x 2 weeks) at which they will be exposed in tanning beds with non-UV bulbs. The time of exposure will be progressively increased from 3 minutes to 9 minutes over the 6 visits to mirror UVB treatment. Before and after every tanning session the subject will complete the pain questionnaire. Subjects in this group received non-UVB tanning bed treatment. UVB: UVB exposure by a tanning bed
    Measure Participants 19 19
    Mean (Standard Deviation) [score on a scale]
    4.89
    (2.56)
    5.21
    (2.64)
    4. Secondary Outcome
    Title Pain Scores of the UV and Non-UV Exposure (Phase II)
    Description The pain scores were assessed using a Likert Scale. Pain will be assessed on an 11-point pain Likert scale where 0=no pain and 10=worst possible pain.
    Time Frame 4 weeks post-treatment

    Outcome Measure Data

    Analysis Population Description
    [Not Specified]
    Arm/Group Title UVB Exposure Non-UVB
    Arm/Group Description The subjects who complete the acclimation phase of the study will then be randomized to 3 times/week treatments for 6 weeks with a fixed dose (10 min) of UVB. The subjects who complete the acclimation phase of the study will then be randomized to 3 times/week treatments for 6 weeks with a fixed dose (10 min) of non-UVB exposure
    Measure Participants 7 7
    Mean (Standard Error) [score on a scale]
    4.65
    (.56)
    5.54
    (.32)
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection UVB Exposure, Non-UVB Exposure
    Comments
    Type of Statistical Test Other
    Comments
    Statistical Test of Hypothesis p-Value .1811
    Comments
    Method t-test, 2 sided
    Comments

    Adverse Events

    Time Frame 12 weeks
    Adverse Event Reporting Description
    Arm/Group Title UVB Exposure Non-UVB
    Arm/Group Description The subjects who complete the acclimation phase of the study will then be randomized to 3 times/week treatments for 6 weeks with a fixed dose (10 min) of UVB. The subjects who complete the acclimation phase of the study will then be randomized to 3 times/week treatments for 6 weeks with a fixed dose (10 min) of non-UVB exposure
    All Cause Mortality
    UVB Exposure Non-UVB
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 0/19 (0%) 0/19 (0%)
    Serious Adverse Events
    UVB Exposure Non-UVB
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 0/19 (0%) 0/19 (0%)
    Other (Not Including Serious) Adverse Events
    UVB Exposure Non-UVB
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 0/19 (0%) 0/19 (0%)

    Limitations/Caveats

    [Not Specified]

    More Information

    Certain Agreements

    All Principal Investigators ARE employed by the organization sponsoring the study.

    There is NOT an agreement between Principal Investigators and the Sponsor (or its agents) that restricts the PI's rights to discuss or publish trial results after the trial is completed.

    Results Point of Contact

    Name/Title Steve feldman, MD
    Organization Wake Forest University Health Sciences
    Phone 336-716-3775
    Email sfeldman@wakehealth.edu
    Responsible Party:
    Wake Forest University
    ClinicalTrials.gov Identifier:
    NCT00447083
    Other Study ID Numbers:
    • II-CDR-Fibromyalgia
    First Posted:
    Mar 14, 2007
    Last Update Posted:
    Nov 13, 2018
    Last Verified:
    Oct 1, 2018