A Post Market Study on DRG Stimulation in FBSS (SYMPATHY)

A Post Market ObServational StudY on the Effect of DRG StiMulation in PATients witH Chronic Pain Following Surgical Lumbar DiscectomY (Failed Back Surgery Syndrome): SYMPATHY

The purpose of this Post Market Observational Study is to monitor the effect of the Axium® SCS System in the management of chronic pain following surgical lumbar discectomy in subjects whom are routinely scheduled for treatment with the Axium® SCS System.

Study Overview

• Status: Withdrawn
• Conditions: Failed Back Surgery Syndrome

• Study Type: Observational

Contacts and Locations

Study Locations

• Switzerland
  • Vaud
    • Morges, Vaud, Switzerland, 1110
      • Centre d'Antalgie de l'EHC-Hôpital de Morges

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

• Sampling Method: Non-Probability Sample

Study Population

Patients suffering from chronic pain post discectomy surgery

Description

Inclusion Criteria:

1. Subject is at least 18 years old
2. Subject is able and willing to comply with the follow-up schedule and protocol
3. Chronic pain following surgical lumbar discectomy for at least 6 months
4. Failed conservative treatments for chronic pain including but not limited to pharmacological therapy, physical therapy and interventional pain procedures for chronic pain
5. Minimum baseline pain rating of 60 mm on the VAS in the subjects' primary area of pain
6. Subject is able to provide written informed consent

Exclusion Criteria:

1. Female subject of childbearing potential is pregnant/nursing or plans to become pregnant during the course of the study
2. Escalating or changing pain condition within the past month as evidenced by investigator examination
3. Subject has had corticosteroid therapy at an intended site of stimulation within the past 30 days
4. Subject has had radiofrequency treatment of an intended target DRG within the past 3 months
5. Subject currently has an active implantable device including ICD, pacemaker, spinal cord stimulator or intrathecal drug pump
6. Subject is unable to operate the device
7. Subjects with indwelling devices that may pose an increased risk of infection
8. Subjects currently has an active infection
9. Subject has participated in another clinical investigation within 30 days
10. Subject has a coagulation disorder or uses anticoagulants that, in the opinion of the investigator, precludes participation
11. Subject has been diagnosed with cancer in the past 2 years.
12. Subject has an anatomical spinal abnormality which is anticipated to require further surgery

Study Plan

How is the study designed?

Number of groups / cohorts

1

Cohorts and Interventions

Group / Cohort
Treated subjects; All subjects recruited and treated wiht the Axium neurostimulator

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Pain Relief	Assessed by change in pain intensity on a Visual Analogue Scale (VAS) from pre-treatment baseline	Post implantation at; 1 week and 1, 3, 6 and 12 months

Collaborators and Investigators

• Sponsor: Abbott Medical Devices

Study record dates

Study Major Dates

• Study Start: December 1, 2015
• Primary Completion (Actual): November 1, 2016
• Study Completion (Actual): November 1, 2016

Study Registration Dates

• First Submitted: October 23, 2015
• First Submitted That Met QC Criteria: December 15, 2015
• First Posted (Estimate): December 18, 2015

Study Record Updates

• Last Update Posted (Actual): February 4, 2019
• Last Update Submitted That Met QC Criteria: January 31, 2019
• Last Verified: January 1, 2019

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Pathologic Processes; Postoperative Complications; Pain; Neurologic Manifestations; Disease; Back Pain; Syndrome; Failed Back Surgery Syndrome
• Other Study ID Numbers: 26-SMI-2015