RTMS and Steroid Joint Steroid Injection in Chronic Spinal Pain
Repetitive Transcranial Magnetic Stimulation Combined with Steroid Joint Injection for the Treatment of Chronic Spinal Pain: Protocol for a Pilot Randomized Controlled Trial
1 other identifier
interventional
40
1 country
2
Brief Summary
Chronic spinal pain (CSP) is one of the most common chronic pain conditions globally. Steroid joint injections (SJI) are a routine treatment option for patients with CLBP that is recalcitrant to other treatments. However, SJI has been shown to have limited long-term efficacy with patients often requiring another injection within months to adequately control pain. One option to prolong the analgesic effects of SJI is to use a type of noninvasive brain stimulation called repetitive transcranial magnetic stimulation (rTMS). Previous studies have shown rTMS may be capable of providing long-term pain relief in patients with chronic back pain. However, the literature on rTMS in patients with CSP is limited and no study has explored rTMS in patients receiving recurrent SJI for pain control. In this pilot randomized controlled trial study, we'll be investigating if combining rTMS with SJI in CSP individuals will enhance or prolong the analgesic effects of SJI alone. The investigators hypothesize that a combined rTMS and SJI intervention will be feasible, tolerable, and safe and will have larger and longer-lasting effects on CSP than a sham rTMS and SJI intervention.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for not_applicable
Started Jun 2023
Typical duration for not_applicable
2 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
April 4, 2023
CompletedFirst Posted
Study publicly available on registry
May 3, 2023
CompletedStudy Start
First participant enrolled
June 20, 2023
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 31, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
December 31, 2025
CompletedFebruary 5, 2025
January 1, 2025
2.1 years
April 4, 2023
February 3, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
Measures of feasibility and tolerability
Data for feasibility, tolerability, and safety will be analyzed using descriptive statistics. Feasibility and tolerability will be measured as (1) the time taken to complete the recruitment of 40 participants, (2) the number of sessions attended by each participant, (3) the number of dropouts in each group, (4) the proportion of participants recruited from the total number screened, and (5) the willingness of each participant to undergo therapy on an 11-point numerical rating scale with 'not at all willing' at 0 and 'very willing' at 10 (measured at baseline).
Through study completion, an average of 24 weeks
Measures for safety
Safety will be presented as any adverse reaction reported on verbal questioning at each session. The assessor will record a description of any adverse reactions along with the severity, duration and how the adverse reaction was managed. The number of participants reporting adverse reactions, and the duration and severity of the adverse reactions will be reported.
Through study completion, an average of 24 weeks
Secondary Outcomes (6)
Pain Numeric Rating Scale
Weeks 1 through 24
Brief Pain Inventory - Short Form (BPI-SF)
Weeks 4, 8, 12, 24
12-Item Short Form (SF-12)
Weeks 4, 8, 12, 24
Oswestry Disability Index (ODI)
Weeks 4, 8, 12, 24
Global Rating of Change Scale (GRC)
Weeks 4 - 24
- +1 more secondary outcomes
Study Arms (2)
active repetitive transcranial magnetic stimulation + steroid joint injection
ACTIVE COMPARATORActive transcranial stimulation will be delivered for a total of 11 sessions. Each session will consist of 40 trains of 5s delivered at 10 Hz, at an intensity of 85% of the resting motor threshold for the first dorsal interosseous muscle and an intertrain interval of 25s (total of 2000 stimulations in a 20-minute session).
sham repetitive transcranial magnetic stimulation + steroid joint injection
SHAM COMPARATORThe sham repetitive transcranial magnetic stimulation coil will be delivered using a Placebo D70mm Air Film Coil of identical colour, size, and shape as the active rTMS coil. The sham coil uses a magnetic shield that blocks the magnetic field from being delivered to the scalp while producing a similar auditory click during discharge. All other aspects of the rTMS protocol will be identical between the active and sham conditions.
Interventions
1-4 weeks after administration of the SJI, participants will attend their first rTMS session. rTMS will be delivered using a biphasic stimulator (DuoMag) and a figure-of-eight coil to the corticomotor representation of the first dorsal interosseous muscle contralateral to the side of worst pain. Recording electrodes will be positioned in a belly-tendon montage over the FDI for electromyography recording. The hotspot and resting motor threshold (rMT) of the FDI will be determined and saved using a Brainsight Neuronavigation system to ensure accurate coil repositioning within and between sessions. The hotspot and rMT will be confirmed and adjusted if needed at each intervention session. Each rTMS session will consist of 40 trains of 5s delivered at 10Hz, at an intensity of 85% of the resting motor threshold for the FDI muscle and an intertrain interval of 25s (total of 2000 stimulations in a 20-minute session).
Sham intervention will follow same protocol as active rTMS using a sham coil that does not deliver actual magnetic stimulation.
Eligibility Criteria
You may qualify if:
- Currently receiving recurrent steroid joint injections for control of chronic spinal pain at the St. Joseph's Health Centre Pain Clinic in London, Ontario, Canada,
- Have pain in the spinal region of an intensity ≥4 out of 10 in the week before your most recent steroid joint injection,
- Have received at least 2 steroid joint injections within the last 12 months at regular intervals
- Have had a consistent medication regimen for the past 3 months.
You may not qualify if:
- Unable to read, understand, and speak English and are not able to give consent
- Known or suspected serious spinal pathology (tumour, fracture, dislocation, scoliosis)
- Spinal surgery in the past 12 months
- History of uncontrolled mental health condition(s)
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (2)
St. Joseph's Health Care London
London, Ontario, N6A4V2, Canada
Parkwood Institute (Main Building)
London, Ontario, N6C 0A7, Canada
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Siobhan Schabrun
London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Professor and William and Lynne Gray Research Chair in Mobility and Activity
Study Record Dates
First Submitted
April 4, 2023
First Posted
May 3, 2023
Study Start
June 20, 2023
Primary Completion
July 31, 2025
Study Completion
December 31, 2025
Last Updated
February 5, 2025
Record last verified: 2025-01
Data Sharing
- IPD Sharing
- Will not share