- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00524420
Transcranial Magnetic Stimulation for Treating Women With Chronic Widespread Pain
Transcranial Magnetic Stimulation (TMS) in the Treatment of Chronic Widespread Pain (CWP)
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Chronic widespread pain is characterized by musculoskeletal pain that lasts for at least 3 months, pain above and below the waist, pain on both the right and left sides, and pain in the head, neck, spine, or back. In addition to fatigue, chronic widespread pain is a hallmark feature of fibromyalgia. Significant physical and emotional effects usually accompany chronic widespread pain and fibromyalgia, making the development of effective treatments a priority. rTMS involves a neurophysiologic technique that directs a current into the brain by using a magnetic field to pass the scalp and skull safely and painlessly. Stimuli are applied to the same brain area several times per second during several consecutive seconds. rTMS has been found to be effective for treating certain types of chronic pain. The purpose of this study is to determine the effectiveness of rTMS treatment in reducing bodily pain associated with chronic widespread pain and/or fibromyalgia in women.
Participants in this study will undergo a diagnostic interview, physical and neurological exam, electrocardiogram, magnetic resonance imaging, and blood and urine collection for screening purposes. Eligible participants will then be randomly assigned to receive either rTMS treatment or sham rTMS treatment. One-hour daily treatment sessions will occur over 15 days. After every five treatment sessions, participants will be interviewed about their pain and depression symptoms, and they will fill out questionnaires about pain, depression, fatigue, sleep, and exercise. Participants will also undergo pain threshold and tolerance testing of their right thumb. On a daily basis, participants will rate their level of pain using a 0 to 20 scale. Follow-up evaluations will occur 1, 4, and 12 weeks after treatment and will include a repeat interview and testing. After the follow-up evaluations, any participants who did not respond to the sham treatment will be offered a series of 15 real rTMS treatment sessions.
Study Type
Enrollment (Actual)
Phase
- Phase 2
Contacts and Locations
Study Locations
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Washington
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Seattle, Washington, United States, 98104
- Harborview Medical Center
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Diagnosis of chronic widespread pain as defined by the 1990 American College of Rheumatology guidelines: chronic musculoskeletal pain for at least 3 months; pain above and below the waist; pain on both right and left sides; pain at one axial site (e.g., head, neck, spine, or back)
- Willing to remain on a stable medical regimen during the entire 6-week course of Phase 1 treatment and 8 weeks prior to rTMS treatment
- Willing to undergo random assignment and able to attend treatment sessions
- Willing to remain on a stable psychotherapy regimen if currently receiving psychotherapy that has been ongoing for at least 3 months prior to study entry
Exclusion Criteria:
- Unable to maintain treatment as usual at stable doses for any medical or psychiatric conditions for 8 weeks prior to and during the study
- Another medical condition associated with significant pain (e.g., diabetic neuropathy, systemic lupus erythematosus, Rheumatoid arthritis, severe degenerative joint disease)
- Any condition that might increase the risk of seizures from TMS
- History of a seizure disorder or family history of a seizure disorder
- Previous use of TMS
- Involvement in litigation or disability that is related to fibromyalgia, chronic widespread pain, or depression
- Current use of proconvulsant medications (e.g., bupropion)
- Metal in the body that would prevent magnetic resonance imaging (MRI) or TMS (e.g., aneurysm clips, pacemakers, neurostimulators)
- History of head injury associated with loss of consciousness for more than 15 minutes, brain surgery, or lithium toxicity
- History of bipolar disorder, schizophrenia, obsessive compulsive disorder, panic disorder, or post-traumatic stress disorder
- Current substance abuse or dependence
- Active suicidal intent or plan
- Severe claustrophobia that would prevent MRI
- Major depression with psychotic features or a current major depressive episode lasting longer than 5 years
- Pregnant
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Quadruple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Active rTMS
Active rTMS involves administration of real rTMS to the patient.
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10 Hz, 4-second trains, 26-second intertrain interval, 75 trains/session, 15 sessions at 120% motor threshold rTMS to left dorsolateral prefrontal cortex
Other Names:
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Sham Comparator: Sham rTMS
Sham rTMS is a placebo or inactive form of rTMS for study control and comparison purposes.
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10 Hz, 4-second trains, 26-second intertrain interval, 75 trains/session, 15 sessions of sham rTMS
Other Names:
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Gracely Box Intensity Rating Scale
Time Frame: Measured weekly
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The BIRS is reliable, valid, and sensitive measure that has been used in a number of studies of analgesics and studies of changes of pain intensity over time and was selected as the primary outcome variable.
Each scale is a 20 point scale that has clear anchor points.
Patients will be classified as responders if they have a 4 point drop or more on the BIRS.
In order to be randomized, subjects were to have had a BIRS score of at least 8. Lower scores indicate less pain and higher scores indicate more pain.
This measure was administered once a week at Baseline, at the end of weeks 1, 2, and 3 of TMS treatment, and 1 week post-TMS treatment.
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Measured weekly
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Gracely Box Unpleasantness Scale
Time Frame: Measured weekly
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The BURS is reliable, valid, and sensitive measure that has been used in a number of studies of analgesics and studies of changes of pain unpleasantness over time.
Each scale is a 20 point scale that has clear anchor points.
Pain unpleasantness is different from pain intensity in that it assesses the affective and not the somatic aspect of the pain.
Lower scores indicate less unpleasantness of pain and higher scores indicate more unpleasantness of pain.
This measure was administered at Baseline, after weeks 1, 2, and 3 of TMS treatment, and 1 week post-TMS.
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Measured weekly
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Hamilton Depression Rating Scale
Time Frame: Measured weekly
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The research coordinator administered the Hamilton Depression Rating Scale-17 item to assess the level of depression on a weekly basis at baseline, weeks 1, 2, 3 of TMS treatment and 1 week post-TMS treatment.
Higher scores indicate a higher level of depression.
Scores range from 0-50 and scores greater than 20 generally indicate moderate depression.
Scores between 0-7 are considered normal.
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Measured weekly
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Adverse Events
Time Frame: Measured daily
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Adverse events (AEs) were collected by open report of emergent symptoms or illness during the study.
This form is filled out during baseline, daily before each TMS session by the trained physician administering the TMS, and at each follow-up visit.
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Measured daily
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Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: David H. Avery, MD, University of Washington
Publications and helpful links
Helpful Links
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- 32656-D
- R21AR053963 (U.S. NIH Grant/Contract)
- 1R21AR053963-01 (U.S. NIH Grant/Contract)
- 06-2407-D 01 (Other Identifier: UW Human Subjects Division ID)
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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