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Spinal Cord Stimulation and Physiotherapy for Treatment of Neuropathic Pain

Not Applicable
Terminated
Conditions
Neuropathic Pain
Interventions
Device: Spinal Cord Stimulation (SCS)
Other: Physiotherapy
Registration Number
NCT03740763
Lead Sponsor
Göteborg University
Brief Summary

The study evaluates the combined effect of optimized pharmacological treatment, spinal cord stimulation and physiotherapy on pain relief, health-related quality of life and physical function in patients with neuropathic pain. All patients will receive optimized pharmacological treatment before start of spinal cord stimulation treatment. Half of the participants will be randomized to physiotherapy before start of spinal cord stimulation treatment while the other half will start physiotherapy after spinal cord stimulation treatment.

Detailed Description

Previous studies have indicated that almost half of the patients with moderate-severe pain receive inadequate pain relief. Neuropathic pain is a common pain condition, affecting 1.5-8% of the population. Conventional pharmacological treatment reduces pain but is often insufficient. Spinal cord stimulation (SCS) is associated with improved pain relief and health-related quality of life compared to conventional medical management. Despite SCS treatment, only half of the patients report \>50% pain relief. Other studies have indicated that active, specific physiotherapy led by professionals reduces pain in chronic pain conditions. The aim of the study is to access the combined effect of optimized pharmacological treatment, SCS and physiotherapy on pain relief, health-related quality of life and physical function in patients with neuropathic pain. Furthermore, the study evaluates when it is most effective to start the physiotherapy.

Recruitment & Eligibility

Status
TERMINATED
Sex
All
Target Recruitment
48
Inclusion Criteria
  • Neuropathic pain > 6 months
  • Pain intensity ≥ 5 according to NRS (for neuropathic pain component to be treated with SCS)
  • Known cause of the pain
  • Neuroanatomical correlation to the pain
  • ≥50% of the painful area is to be treated with SCS
  • The patient has a physical and psychological health status that allows the patient to participate in physiotherapy and undergo SCS implantation.
Exclusion Criteria
  • Not able to undergo SCS implantation
  • Inadequate knowledge of the Swedish language
  • Alcohol or substance abuse
  • Severe untreated psychiatric disorders including psychiatric disease and/or psychological conditions which are the primary determinant to the patient's pain condition
  • Incapacitating pain conditions of other causes than neuropathic pain
  • Pregnancy
  • Insufficient compliance
  • Malignant disease with short expected survival

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Spinal Cord Stimulation (SCS)Spinal Cord Stimulation (SCS)Spinal Cord Stimulation (SCS) 1. Pharmacological analgetic treatment and treatment with SCS for 3 months 2. Add-on physiotherapy for 6 months to SCS and pharmacological analgetic treatment 3. Pharmacological analgetic treatment, SCS treatment and add-on self management physical activity for 12 months
PhysiotherapySpinal Cord Stimulation (SCS)Physiotherapy 1. Pharmacological analgetic treatment for 3 months 2. Physiotherapy for 3 months and pharmacological analgetic treatment 3. Add-on SCS in combination with physiotherapy and pharmacological analgetic treatment for 3 months 4. Pharmacological analgetic treatment, SCS treatment and add-on self management physical activity for 12 months
PhysiotherapyPhysiotherapyPhysiotherapy 1. Pharmacological analgetic treatment for 3 months 2. Physiotherapy for 3 months and pharmacological analgetic treatment 3. Add-on SCS in combination with physiotherapy and pharmacological analgetic treatment for 3 months 4. Pharmacological analgetic treatment, SCS treatment and add-on self management physical activity for 12 months
Spinal Cord Stimulation (SCS)PhysiotherapySpinal Cord Stimulation (SCS) 1. Pharmacological analgetic treatment and treatment with SCS for 3 months 2. Add-on physiotherapy for 6 months to SCS and pharmacological analgetic treatment 3. Pharmacological analgetic treatment, SCS treatment and add-on self management physical activity for 12 months
Primary Outcome Measures
NameTimeMethod
Pain intensity according to numeric rating scale (NRS)3 months after implantation

Number of patients who report ≥50% pain reduction (pain intensity) according to numeric rating scale (score from 0 to 10, where 0 is described as "no pain" and 10 as "worst pain imaginable") with regard to neuropathic pain.

Secondary Outcome Measures
NameTimeMethod
Pain intensity according to NRS21 months after implantation

Number of patients who report ≥50% pain reduction (pain intensity) according to numeric rating scale (score from 0 to 10, where 0 is described as "no pain" and 10 as "worst pain imaginable") with regard to neuropathic pain.

Days of sick-leave21 months

Number of days of sick-leave

Patient treatment satisfaction according to NRS21 months after implantation

Self-reported treatment satisfaction with regard to pain relief, how acceptable the patient finds the treatment and hospital care. Numeric rating scale (score from 0 to 10, where 0 is described as "not satisfied at all" and 10 as "very satisfied") and numeric rating scale (score from 0 to 10, where 0 is described as "not acceptable at all" and 10 as "very acceptable").

Health Related Quality of Life (HRQL) according to SF3621 months after implantation

Assessed with RAND Short Form 36 (SF36). The 36 items in the questionnaire are grouped into eight subscale scores: physical functioning, role limitations caused by physical problems, bodily pain, general health, energy/vitality, social functioning, role limitations caused by emotional problems and mental health. The subscale scores range from 0-100, the higher score, the better health related quality of life.

Return to work21 months

Number of patients who return to work part time or full time.

Number of hospital and primary care visits21 months

Number of hospital and primary care visits

Physical activity21 months

Assessed with accelerometer

Health Related Quality of Life (HRQL) assessed with EQ-5D21 months after implantation

Assessed with EQ-5D-5L. The questionnaire comprises five dimensions: mobility, self-care, usual activities, pain/discomfort and anxiety/depression. Each dimension has 5 levels: no problems, slight problems, moderate problems, severe problems and extreme problems. The patient is asked to indicate his/her health state by ticking the box next to the most appropriate statement in each of the five dimensions. This decision results in a 1-digit number that expresses the level selected for that dimension. The digits for the five dimensions can be combined into a 5-digit number that describes the patient's health state.

The EQ VAS records the patient's self-rated health on a vertical visual analogue scale, where the endpoints are labelled 'The best health you can imagine' and 'The worst health you can imagine'. The VAS can be used as a quantitative measure of health outcome that reflect the patient's own judgement.

Medicine consumption21 months

Number of pills and dosage.

Trial Locations

Locations (1)

Pain center, Sahlgrenska University Hospital

🇸🇪

Göteborg, Sweden

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