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Placebo-controlled Trial of Transdiscal Radiofrequency Annuloplasty

NCT00750191 · Status: COMPLETED · Phase: PHASE1 · Type: INTERVENTIONAL · Enrollment: 64

Last updated 2014-01-08

Study results available
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Summary

Each patient was assigned to one of the two groups: IDB or Sham. On the day of the procedure, an IV was inserted in pre-procedural area and patient transported to the procedure room. The procedure will be completed under fluoroscopy in prone position. Patients were given 1-4 mg of midazolam for relaxation before the procedure and, if needed, 50-100 mcg of fentanyl IV during the procedure. The patients was randomly assigned to treatment or placebo using computer-generated codes maintained in sequentially numbered opaque envelopes. The physician performing procedure was informed of the assignment. In IDB group, guided by the fluoroscopic imaging, two transdiscal probes was positioned in the posterior annulus using a posterolateral, oblique approach. First, two electrically insulated 17G transdiscal introducers was used to gain an access to the disc space. Than, two radiofrequency probes will be positioned through each of the introducers bilaterally to create a bipolar configuration. Placement of the transdiscal probes within the disc annulus will be confirmed using oblique, lateral, and anterior-posterior fluoroscopic images. Sham group had their introducers and electrodes positioned just outside of the disc. This was also be documented using fluoroscopy. Investigator attached the electrodes to inactive heater control device that provide a similar auditory and visual experience for the patient. Patients were therefore remain blinded to actual treatment and physician performing procedure was not involved in patient's follow-up. Patients were awake and communicating with the physician conducting the procedure and if pain in legs were present and increased during the procedure, the heating protocol would be stopped. Following completion of procedure the patient was transferred to recovery and monitored for 45 minutes, then discharged home with instructions. The patients were followed over a period of 12 months.

Conditions

  • Lower Back Pain

Interventions

DEVICE

The Transdiscal Radiofrequency Annuloplasty

Adjustment in dosage form, frequency and or duration.

DEVICE

The Transdiscal Radiofrequency Annuloplasty

interventions include adjustment to dosage form,frequency,duration or switching to treatment arm A

Sponsors & Collaborators

  • Baylis Medical Company

    lead INDUSTRY

Principal Investigators

  • Leonardo Kapural, MD · Center for Clinical Research

  • Bruce Vrooman, M.D. · The Cleveland Clinic

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2007-09-30
Primary Completion
2012-09-30
Completion
2012-09-30

Countries

  • United States

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT00750191 on ClinicalTrials.gov