About this trial
This prospective, single-center, first-in-indication feasibility study will evaluate the safety and preliminary effectiveness of spinal cord stimulation (SCS) for the treatment of severe, treatment-refractory primary Restless Legs Syndrome (RLS). Participants will undergo implantation of the Saluda Medical Evoke® Spinal Cord Stimulation System and will be followed for 24 months with clinical, neurophysiological, and patient-reported outcome assessments.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Age >18 years and older.
Received a medical diagnosis of RLS via first screening with Cambridge Hopkins- RLS questionnaire and confirmed via Hopkins-Hening Diagnostic questionnaire.
IRLS Scale score ≥ 21 (classified as severe) and received a determination of treatment refractory RLS or inadequate response to standard medical treatment for RLS by a sleep medicine physician.
RLS symptoms occur ≥ 3 nights per week.
Disqualifiers
Age <18 years.
Neuropathic pain, other than RLS on DN4 questionnaire.
Any mental or physical limitation that would prevent completing and of the study protocols.
Active medical implant in the body (i.e., pacemaker).
Trial design
Single group
Treatments tested in this trial
Spinal Cord Stimulation
DeviceImplantation of the FDA-approved Saluda Medical Evoke® Spinal Cord Stimulation System with Smartloop® Technology. Two percutaneous epidural leads will be implanted in the thoracic spine (T7-T10 region) and programmed to provide chronic spinal cord stimulation for treatment of severe RLS symptoms.
Treatment groups
Trial outcomes
Primary outcomes
Safety and Adverse Events
Frequency, severity, and relationship of device-, stimulation-, and procedure-related adverse events.
Secondary outcomes
Change in International Restless Legs Syndrome Scale (IRLS)
The IRLS is a validated 10-item patient-reported measure of Restless Legs Syndrome severity. Scores range from 0 to 40, with higher scores indicating worse symptom severity. A decrease in score from baseline indicates improvement.
Clinician Global Impression Improvement Scale (CGI-I)
Patient Global Impression of Improvement (PGI-I)
The PGI-I is a patient-reported global rating of change in symptoms and overall condition following treatment. Scores range from 1 to 7, where 1 = Very much improved and 7 = Very much worse. Lower scores represent a better outcome and greater perceived improvement.
Suggested Immobilization Test (SIT)
Sponsors and contacts
Click on the lead sponsor to view all of their trials.
Marshall Holland
Lead sponsor
University of Alabama at Birmingham
Sponsor institution
National Institute of Neurological Disorders and Stroke (NINDS)
Collaborator
This trial is not recruiting at the moment. You can still explore other options: