NCT03733886

Brief Summary

This study will evaluate the effect of Burst spinal cord stimulation (SCS) in the treatment of painful radiculopathy in lower extremity(ies) with or without lower back pain. It is a multicenter double-blinded "n-of-1" RCT with repeated two-week periods of Burst SCS or sham in randomised order.

Trial Health

90
On Track

Trial Health Score

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

Enrollment
10

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Sep 2019

Longer than P75 for not_applicable

Geographic Reach
2 countries

2 active sites

Status
completed

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

November 6, 2018

Completed
1 day until next milestone

First Posted

Study publicly available on registry

November 7, 2018

Completed
10 months until next milestone

Study Start

First participant enrolled

September 9, 2019

Completed
3.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 22, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 22, 2023

Completed
Last Updated

August 30, 2023

Status Verified

August 1, 2023

Enrollment Period

3.8 years

First QC Date

November 6, 2018

Last Update Submit

August 29, 2023

Conditions

Outcome Measures

Primary Outcomes (1)

  • Usual pain intensity in lower extremity(ies)

    Numeric rating scale (0-10); usual pain intensity over the last 24 h (day 7-13) with anchor points 0 = No pain and 10 = Worst imaginable pain.

    Will be measured at day 7 to day 13 in each period (to avoid carry-over effects from previous treatment period)

Secondary Outcomes (12)

  • Highest pain intensity in lower extremity(ies)

    Will be measured at day 7 to day 13 in each period (to avoid carry-over effects from previous treatment period)

  • Lowest pain intensity in lower extremity(ies)

    Time Frame: Will be measured at day 7 to day 13 in each period (to avoid carry-over effects from previous treatment period)

  • Pain intensity in lower extremity(ies)"now"

    Time Frame: Will be measured at day 7 to day 13 in each period (to avoid carry-over effects from previous treatment period)

  • Pain unpleasantness

    Time Frame: Will be measured at day 7 to day 13 in each period (to avoid carry-over effects from previous treatment period)

  • Three individually chosen functions that are inhibited by the pain

    Time Frame: Will be measured at day 7 to day 13 in each 14-day treatment period (to avoid carry-over effects from previous treatment period)

  • +7 more secondary outcomes

Study Arms (2)

Burst SCS

ACTIVE COMPARATOR

In the active comparator the burst SCS system will be turned on according to randomisation. A treatment period is a 2-week period where the patient receives either active treatment or sham. Each patient will go through 6 treatment periods (in total 12 weeks). A treatment cycle is a 4-week period with two treatment periods, one of active treatment and one of sham. Each patient will go through three treatment cycles.

Device: Burst SCS (Abbott Proclaim IPG and single lead Abbott Octrode at level Th9/10)

Sham

SHAM COMPARATOR

In the sham comparator the burst SCS system will be turned off according to randomisation.

Device: Burst SCS (Abbott Proclaim IPG and single lead Abbott Octrode at level Th9/10)

Interventions

Burst SCS implies high frequency SCS treatment in intermittent packets with stimulation below detection level. Abbott BurstDR at default setting: Pulse width 1000 microseconds, frequency 500 Hz/40 Hz, continuous stimulation (no cycling). Pulse amplitude at maximum 60% of sensory threshold

Burst SCSSham

Eligibility Criteria

Age18 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • History, symptoms and clinical findings consistent with painful radiculopathy in lower extremity(ies) ("probable" or "definite") for at least 3 months, with or without lower back pain. The pain in the extremity(ies) must dominate.
  • Understand Norwegian or Swedish language (written and spoken).
  • Usual pain intensity ≥ 3.5 / 10 (NRS 0-10)

You may not qualify if:

  • Absolute
  • Opioid dose \> 100 mg morphine equivalents / day
  • Ongoing litigation
  • Mental / psychiatric disorder that may affect treatment
  • Chronic generalized pain
  • Pregnancy
  • Hypersensitivity to local anesthetics
  • Serious or unclear medical condition such as angina pectoris, severe vascular disorder, infection, malignancy disease, bleeding disorders
  • Laminectomy in or above level for planned epidural access
  • Spine surgery the last 3 months
  • Relative
  • Ongoing medication that affects coagulation or platelet function

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Oslo University Hospital, Department of Pain Management and Research

Oslo, Norway

Location

Uppsala University Hospital, Multidisciplinary Pain Center

Uppsala, Sweden

Location

Related Publications (1)

  • O'Connell NE, Ferraro MC, Gibson W, Rice AS, Vase L, Coyle D, Eccleston C. Implanted spinal neuromodulation interventions for chronic pain in adults. Cochrane Database Syst Rev. 2021 Dec 2;12(12):CD013756. doi: 10.1002/14651858.CD013756.pub2.

MeSH Terms

Conditions

RadiculopathyLow Back Pain

Condition Hierarchy (Ancestors)

Peripheral Nervous System DiseasesNeuromuscular DiseasesNervous System DiseasesBack PainPainNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and Symptoms

Study Officials

  • Bård Lundeland, PhD

    Department of Pain Management and Research, Oslo University Hospital

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
CROSSOVER
Model Details: N-of-1-study. Each patient will go through three treatment cycles each consisting of two weeks of active treatment and two weeks of sham in randomised order. In total the study period will be 12 weeks.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

November 6, 2018

First Posted

November 7, 2018

Study Start

September 9, 2019

Primary Completion

June 22, 2023

Study Completion

June 22, 2023

Last Updated

August 30, 2023

Record last verified: 2023-08

Data Sharing

IPD Sharing
Will share

Deidentified individual participant data collected during the trial will be available to other researchers who provide a methodologically sound proposal, and who fulfill institutional guidelines.

Shared Documents
CSR
Time Frame
All of the individual participant data collected during the trial will be available after deidentification, beginning 9 months and lasting 5 years after publication.
Access Criteria
Applications must fulfill institutional guidelines and requestors will need to sign a data access agreement.

Locations