Efficacy of Spinal Cord Stimulation in Patients With a Failed Back Surgery Syndrome. (HDS)

May 23, 2025 updated by: Dieter Mesotten, Ziekenhuis Oost-Limburg

The Efficacy of Spinal Cord Stimulation in Patients With a Failed Back Surgery Syndrome.

When patients suffer from chronic pain after multiple back surgeries, this is denominated as the 'failed back surgery syndrome'. A possible treatment for these patients is spinal cord stimulation. This is an invasive treatment where no other treatment options (medication, minimal invasive treaments) can offer progress to the patients' health status. In spinal cord stimulation, an electrode will be placed at the spinal cord under local anaesthesia whereas via a battery a painless electrical stimulation will arise. Clinical research have demonstrated that a new way of spinal cord stimulation can improve back and leg pain significantly. This will lead to a better quality of life for the patients and a decreased use of medications. In Ziekenhuis Oost-Limburg, different manners of spinal cord stimulation will be compared to each other.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

The patients in our pain centre are implanted with Medtronic material. This material cannot deliver the 10kHz frequency but can deliver up to 5000 Hz (hereinafter referred to as high density stimulation). This also delivers high energy to the spinal cord without palpable paresthesia, with a beneficial effect on the pain.

We wish to include patients who, in accordance with Belgian regulations, have undergone a normal evaluation period with an external battery and who have subsequently had a definitive system implanted. The implant procedure, evaluation period and the material used are identical to patients outside the study context.

We wish to compare different stimulation modes within a patient population in which an epidural electrode for failed back surgery syndrome (FBSS) has been implanted, in order to evaluate the effectiveness. We will evaluate the modality "high-density", conventional stimulation and sham stimulation in the same patient. This can be easily adjusted by reprogramming the implanted battery. For this study we want to use a relatively new study design, namely: single case design (N-of-1 trial). In this, many variables will be evaluated with a limited number of study subjects in order to determine an effect. We want to investigate to what extent the patient experiences the different stimulation modes and to what extent he can compare or prefer these stimulation modes. The stimulation that the patient prefers as most pleasant can be continued afterwards. If the patient does not experience pain reduction during a certain stimulation mode, he can always fall back on his own pain medication.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
6

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • Belgium
      • Genk, Belgium, 3600
        • Ziekenhuis Oost-Limburg

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 75 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Patients with an implanted neurostimulation system met een FBSS met geïmplanteerd

Exclusion Criteria:

  • no knowledge of the Dutch language
  • Addicted to drugs

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Device Feasibility
  • Allocation: Non-Randomized
  • Interventional Model: Single Group Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Sham Comparator: SHAM
No stimulation will be given
Device: Spinal cord stimulation
Spinal cord stimulation will be given according to the arms of the group (no stimulation, high density stimulation of conventional stimulation)
Experimental: High Density Stimulation
New way of spinal cord stimulation
Device: Spinal cord stimulation
Spinal cord stimulation will be given according to the arms of the group (no stimulation, high density stimulation of conventional stimulation)
Active Comparator: Conventional stimulation
the most used stimulation of the spinal cord
Device: Spinal cord stimulation
Spinal cord stimulation will be given according to the arms of the group (no stimulation, high density stimulation of conventional stimulation)

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Evaluation of pain
Time Frame: 28 days
Pain will be evaluated in the different groups according to a pain scale varying from 1 to 11 with 0 no pain and 11 a lot of pain
28 days

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Need of medication
Time Frame: 28 days
The difference in medication in the different groups will be assessed using a questionnaire
28 days
Quality of sleep
Time Frame: 28 days
Quality of sleep will be assessed according to a questionnaire
28 days
Quality of life and functional outcome
Time Frame: 28 days
Quality of life will be assessed according to a questionnaire
28 days

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Ziekenhuis Oost-Limburg

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Martine Puylaert, MD PhD, Ziekenhuis Oost-Limburg

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
May 1, 2018

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 31, 2022

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
April 1, 2025

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
March 1, 2018

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 9, 2018

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
March 12, 2018

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
May 30, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
May 23, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
May 1, 2025

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • HDS study

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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