NCT05840354

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

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Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
40

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Jun 2023

Typical duration for not_applicable

Geographic Reach
1 country

2 active sites

Status
recruiting

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

Completed
29 days until next milestone

First Posted

Study publicly available on registry

May 3, 2023

Completed
2 months until next milestone

Study Start

First participant enrolled

June 20, 2023

Completed
2.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 31, 2025

Completed
5 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2025

Completed
Last Updated

February 5, 2025

Status Verified

January 1, 2025

Enrollment Period

2.1 years

First QC Date

April 4, 2023

Last Update Submit

February 3, 2025

Conditions

Keywords

repetitive transcranial magnetic stimulationsteroid joint injectioninflammatory markersinflammationchronic pain

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 COMPARATOR

Active 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).

Device: Magstim Rapid2

sham repetitive transcranial magnetic stimulation + steroid joint injection

SHAM COMPARATOR

The 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.

Device: Placebo D70mm Air Film Coil

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).

Also known as: rTMS
active repetitive transcranial magnetic stimulation + steroid joint injection

Sham intervention will follow same protocol as active rTMS using a sham coil that does not deliver actual magnetic stimulation.

Also known as: sham rTMS
sham repetitive transcranial magnetic stimulation + steroid joint injection

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

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

RECRUITING

Parkwood Institute (Main Building)

London, Ontario, N6C 0A7, Canada

RECRUITING

MeSH Terms

Conditions

InflammationChronic Pain

Condition Hierarchy (Ancestors)

Pathologic ProcessesPathological Conditions, Signs and SymptomsPainNeurologic ManifestationsSigns and Symptoms

Study Officials

  • Siobhan Schabrun

    London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's

    PRINCIPAL INVESTIGATOR

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

Locations