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Fibromyalgia is a debilitating pain condition that is characterized by the chronic occurrence of pain affecting the musculoskeletal system, a sensitivity to pressure stimuli, and a low threshold to noxious stimuli. The topography of pain is widespread, although it could be more pronounced in some bodily regions. Besides pain, patients suffer from a wide range of symptoms, including fatigue, anxiety and depression manifestations, and altered quality of life. Facing these debilitating symptoms, the available therapeutic strategies for treating pain and associated manifestations are usually faced with limited efficacy and numerous side effects. For these reasons, non-invasive stimulation techniques, namely transcutaneous stimulation by means of Exopulse Mollii suit, might be of help in this context.
The investigators designed a randomized sham controlled double-blind trial to demonstrate the improvement of pain, quality of life, fatigue and mood in adult patients with fibromyalgia following a 2-week intervention of "active" versus "sham" Exopulse Mollii suit. A 2-week washout period should be enough to prevent a potential carry over effect. After this phase (phase 1), a second open label phase (phase 2) will be proposed for patients to understand the effects of Exopulse Mollii suit employed for 4 weeks (7 sessions per week) on the studied outcomes.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Active astimulation | Active Comparator | Active sessions will last 1 hour each. The following parameters will be used for electric stimulation: low frequency (20 Hz), low current intensity (2 mA), with a small pulse width of 25-170 microseconds. |
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| Sham stimulation | Sham Comparator | In the sham condition, the control unit will be programmed to start stimulating for 1 minute then it will shut off. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Exoplulse Mollii suit | Device | Exopulse Mollii suits consists of a body Garments (Jacket and Pants) and a control unit. The body Garments (Jacket and Pants) is a suit with 58 embedded electrodes that can stimulate 40 groups of muscles, conductive wires and connectors to a detachable control unit, whose intended purpose is to transmit electric pulses from the control unit to key nerves and corresponding muscle groups throughout the body. The control unit is a battery powered electrical device which sends low intensity electric pulses through connectors to the Body Garments which in turn transmits the pulses from the connectors to key nerves and corresponding muscle groups throughout the body. |
| Measure | Description | Time Frame |
|---|---|---|
| Change in the Visual Analogue Scale for Pain | VAS consists of rating the symptom on a 10 cm horizontal line going from "no pain" to "worst pain imaginable". | This be assessed at baseline (before intervention) then at 2 weeks, 4 weeks, 6 weeks, 8 weeks and 12 weeks later |
| Measure | Description | Time Frame |
|---|---|---|
| Pain Catastrophizing Scale (PCS) | Pain Catastrophizing Scale (PCS) will be employed, which is a valid and reliable scale that includes 13 items assessing the presence and severity of feelings or thoughts that emerge when experiencing pain. Each item is rated on a 5-point Likert scale ranging from 0 (not at all) to 4 (all the time). It is possible to calculate a total and three subscale scores (i.e., helplessness, magnification, and rumination) |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Samar S. Ayache, MD, PhD | Clinical Neurophysiology department, Henri Mondor Hospital, Creteil, France | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Hopital Henri Mondor | Créteil | 94010 | France |
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| ID | Term |
|---|---|
| D005356 | Fibromyalgia |
| ID | Term |
|---|---|
| D009135 | Muscular Diseases |
| D009140 | Musculoskeletal Diseases |
| D012216 | Rheumatic Diseases |
| D009468 | Neuromuscular Diseases |
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Phase 1: randomized sham controlled crossover study (active versus sham condition)
Phase 2: Open label study (active condition)
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| Exopulse Mollii suit (sham) | Device | In the sham condition, the control unit will be programmed to start stimulating for 1 minute then it will shut off. |
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| This be assessed at baseline (before intervention) then at 2 weeks, 4 weeks, 6 weeks, 8 weeks and 12 weeks later |
| Brief Pain Inventory | The validated French version of the Brief Pain Inventory (BPI) will be used to assess pain severity (4 items) and pain interference (7 items). BPI items are rated on a 10-point scale running from 0 (no pain/does not interfere) to 10 (pain as bad as the participant can imagine/interferes completely). | This be assessed at baseline (before intervention) then at 2 weeks, 4 weeks, 6 weeks, 8 weeks and 12 weeks later |
| Visual Analogue Scale (VAS) for fatigue | Like pain, fatigue will be assessed using VAS which consists of rating the symptom on a 10 cm horizontal line going from "no fatigue" to "worst fatigue imaginable". | This be assessed at baseline (before intervention) then at 2 weeks, 4 weeks, 6 weeks, 8 weeks and 12 weeks later |
| Fibromyalgia Impact Questionnaire (FIQ) | It is an 11-item scale that assesses health status and functional disability by exploring the impact of fibromyalgia on work, wellbeing, fatigue, sleep, stiffness, anxiety, and depression. FIQ scores can range from 0 to 100, with higher scores reflecting worse health status. Scores could be used to classify fibromyalgia as mild (scores: 0-38), moderate (scores: 39-58), and severe (scores: 59-100) | This be assessed at baseline (before intervention) then at 2 weeks, 4 weeks, 6 weeks, 8 weeks and 12 weeks later |
| Hospital Anxiety and Depression Scale (HADS) | It is a 14-item generic scale with good psychometric properties and consists of seven items assessing anxiety and seven others assessing depression. Scores can range from 0 to 21 on each subscale, with higher scores indicating worse symptomatology | This be assessed at baseline (before intervention) then at 2 weeks, 4 weeks, 6 weeks, 8 weeks and 12 weeks later |
| Short Form 36 Health Survey (SF-36) | It is a generic survey that contains 36 items which assess the quality of life and yield eight dimensions: physical functioning, physical role, emotional role, bodily pain, general health, vitality, social functioning, and mental health. The score of each dimension ranges from 0 to 100, with higher scales implying better health status. | This be assessed at baseline (before intervention) then at 2 weeks, 4 weeks, 6 weeks, 8 weeks and 12 weeks later |
| D009422 |
| Nervous System Diseases |