NCT07403331

Brief Summary

People with nerve damage can develop nerve pain. The pain can sometimes be severe and unpredictable, causing odd or alarming sensations - for example, lightning-like or electric shock feelings in the area served by the damaged nerve. The investigators will examine a treatment for nerve pain in the legs caused by nerve damage, which can occur after a herniated disc or a bone fracture, with or without surgery. Previous research suggests that spinal cord stimulation can relieve nerve pain in the legs after surgery or injury, but its effectiveness is still debated. Other studies show that multidisciplinary treatment helps people with long-term pain to improve their quality of life and to better cope in life. National and international guidelines recommend this kind of multidisciplinary care for long-term pain. There has yet been published research on spinal cord stimulation combined with multidisciplinary treatment as a bundle intervention. The investigators therefore want to find out whether this combined approach can reduce nerve pain in the legs and improve physical functioning.

Trial Health

77
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
14mo left

Started May 2026

Geographic Reach
1 country

1 active site

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

Study Progress1%
May 2026Jul 2027

First Submitted

Initial submission to the registry

February 4, 2026

Completed
7 days until next milestone

First Posted

Study publicly available on registry

February 11, 2026

Completed
3 months until next milestone

Study Start

First participant enrolled

May 4, 2026

Completed
11 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 1, 2027

Expected
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2027

Last Updated

May 6, 2026

Status Verified

May 1, 2026

Enrollment Period

11 months

First QC Date

February 4, 2026

Last Update Submit

May 4, 2026

Conditions

Outcome Measures

Primary Outcomes (2)

  • Pain intensity in leg(s)

    Assessed using an 11-point Numeric Rating Scale (NRS 0-10) for leg pain the last 24 hours, where 0 = "no pain" and 10 = "worst imaginable pain." Higher scores indicate more severe pain. MCID: decrease of ≥2 points. Measured three times per week during the single-case experimental design phases: baseline (A1), SCS+rehabilitation intervention (B1/B2), and follow-up (FU) .

    From baseline through 12 weeks after start of SCS+rehabilitation and during a 5-week period approximately 6 months after implantation.

  • Physical function (PROMIS-29)

    Assessed using the PROMIS-29 Physical Function domain T-score (mean 50, SD 10 in the reference population). Higher scores indicate better physical function. MCID: increase of ≥5 T-score points. Measured three times per week during the single-case experimental design phases: baseline (A1), SCS+rehabilitation intervention (B1/B2), and follow-up (FU) .

    From baseline through 12 weeks after start of SCS+rehabilitation and during a 5-week period approximately 6 months after implantation.

Secondary Outcomes (18)

  • Pain intensity in the lower back

    From baseline through 12 weeks after start of SCS+rehabilitation and during a 5-week period approximately 6 months after implantation.

  • Pain interference (PROMIS-29)

    From baseline through 12 weeks after start of SCS+rehabilitation and during a 5-week period approximately 6 months after implantation.

  • Pain intensity (PROMIS-29)

    From baseline through 12 weeks after start of SCS+rehabilitation and during a 5-week period approximately 6 months after implantation.

  • Physical function (6-min-walk test)

    Pre-implantation, at end of 12-week SCS+rehabilitation, and at approximately 6 months after implantation.

  • Physical function (sit-to-stand test)

    Pre-implantation, at end of 12-week SCS+rehabilitation, and at approximately 6 months after implantation.

  • +13 more secondary outcomes

Study Arms (1)

Treatment bundle

EXPERIMENTAL

Treatment bundle consisting of spinal cord stimulation plus multidisciplinary rehabilitation

Other: Treatment bundle

Interventions

The intervention is a treatment bundle consisting of spinal cord stimulation plus multidisciplinary rehabilitation. The multidisciplinary rehabilitation consists of excercise therapy, cognitive therapy and individualized programming of the SCS device.

Also known as: Spinal cord stimulation, Rehabilitation, Excercise therapy, Acceptance and commitment therapy, Cognitive therapy, Physiotherapy
Treatment bundle

Eligibility Criteria

Age18 Years - 60 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • Peripheral neuropathic pain in one or both legs for \>6 months due to:
  • (1) Post Spinal Pain Syndrome (type 1 or 2).
  • (2) Localized nerve damage.
  • The area of the neuropathic pain in the leg(s) must be the dominant pain component.
  • Age ranges from 18-60 years.
  • Previous standard conservative (or surgical) treatment attempted.
  • Opioid use within permissible limits at implantation time (daily opioid dose \<50 mg OMEQ).
  • Willingness to actively participate in the treatment bundle.
  • Living within reasonable travelling distance from Oslo.
  • Proficiency in understanding oral and written Norwegian, essential to benefit from the program that relies on mutual comprehension, nuanced conversation, and emotional expression, which are language-dependent.
  • Cognitive capacity to provide informed consent.
  • Ability to master the technical aspects of the SCS system (switching programs on the remote control).

You may not qualify if:

  • Currently undergoing the claims process for health benefits (e.g., disability pensions from NAV (Norwegian Labour and Welfare Administration).
  • Presenting a psychological or psychiatric disorder that may impact treatment efficacy.
  • Chronic generalized pain conditions.
  • Other pain conditions in the affected area, such as osteoarthritis.
  • Pregnancy.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Department of pain management and research, Oslo university hospital

Oslo, Norway

RECRUITING

MeSH Terms

Conditions

Neuralgia

Interventions

Spinal Cord StimulationRehabilitationAcceptance and Commitment TherapyCognitive Behavioral TherapyPhysical Therapy Modalities

Condition Hierarchy (Ancestors)

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

Intervention Hierarchy (Ancestors)

Electric Stimulation TherapyTherapeuticsAftercareContinuity of Patient CarePatient CareHealth ServicesHealth Care Facilities Workforce and ServicesBehavior TherapyPsychotherapyBehavioral Disciplines and Activities

Study Officials

  • Lars-Petter Granan, Ph.D

    Department of pain management and research, Oslo university hospital

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Christopher Ekholdt, PhD-student

CONTACT

Lars-Petter Granan, Ph.D

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Model Details: The study examines a treatment bundle consisting of spinal cord stimulation plus multidisciplinary rehabilitation. The study uses a single-case experimental design (SCED) ,based on N-of-1 trials: each participant acts as their own control. A long baseline period with many measurement points establishes a stable baseline. The same is done during the intervention, and at 6-month followup. This structure is repeated across10 participants, and combine individual effects to estimate a pooled treatment effect while keeping within-person precision. Timepoint for intervention start is randomized (wait time from when the SCS-system is implanted to the start of the treatment (SCS+rehabilitation), creating a multiple-baseline design to strengthen causal inference. See the Study destription for details. There is no separate control group; each participant's baseline serves as the comparison. SCEDs suit this study because the intervention is complex, and because chronic pain also is complex.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Head of Department, Department for pain management and research. Ph.D.

Study Record Dates

First Submitted

February 4, 2026

First Posted

February 11, 2026

Study Start

May 4, 2026

Primary Completion (Estimated)

April 1, 2027

Study Completion (Estimated)

July 1, 2027

Last Updated

May 6, 2026

Record last verified: 2026-05

Data Sharing

IPD Sharing
Will share

Individual participant data for all collected variables, generated during the study and fully documented in an accompanying data dictionary (detailing variable names, codes, values, units, and derivations), will be made available upon reasonable request from qualified researchers after publication Access will be restricted to qualified researchers who submit an application and obtain approval from the relevant ethics committee and data protection authority. Direct and indirect identifiers-including names, exact dates, and other re-identification risks-will be systematically removed or transformed (such as index-adjusting dates to retain intervals while preventing linkage), ensuring the dataset supports robust secondary analyses while upholding participant privacy. The study protocol is planned to be published.

Locations