Trial of Disc Biacuplasty to Treat Chronic Discogenic Low Back Pain

NCT ID: NCT00749554

Last Updated: 2010-06-07

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

TERMINATED

Clinical Phase

PHASE4

Total Enrollment

40 participants

Study Classification

INTERVENTIONAL

Study Start Date

2008-04-30

Brief Summary

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The purpose of this randomized controlled trial is to evaluate the effectiveness of Disc Biacuplasty in relieving pain, reducing medication intake and improving function, satisfaction and quality of life of patients with chronic mechanical discogenic low back pain.

Detailed Description

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Conditions

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Low Back Pain

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

TRIPLE

Participants Caregivers Outcome Assessors

Study Groups

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Disc biacuplasty

Group Type ACTIVE_COMPARATOR

Disc biacuplasty

Intervention Type DEVICE

The lesion duration will be 15 minutes with a ramp rate of 2°C per minute and a peak set temperature of 45°C (Temperature in posterior annulus of disc reaches 65°C).

Sham treatment.

Group Type PLACEBO_COMPARATOR

Sham biacuplasty

Intervention Type DEVICE

Probes not inserted into disc, no RF electricity applied.

Interventions

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Disc biacuplasty

The lesion duration will be 15 minutes with a ramp rate of 2°C per minute and a peak set temperature of 45°C (Temperature in posterior annulus of disc reaches 65°C).

Intervention Type DEVICE

Sham biacuplasty

Probes not inserted into disc, no RF electricity applied.

Intervention Type DEVICE

Other Intervention Names

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TransDiscal Cooled Radiofrequency Intradiscal biacuplasty

Eligibility Criteria

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Inclusion Criteria

* Age \>18 years
* Able to understand the informed consent and baseline/follow-up questionnaires
* Chronic low back pain \> leg pain for longer than 6 months, unresponsive to comprehensive non-operative treatment
* No clinical evidence of SI joint mediated pain
* Concordant pain reproduced on provocative discography at an intensity of \>6/10 at low pressure (\<50 psi) at not more than 2 discs and a negative response at an adjacent control disc
* Preservation of at least 50% height of the symptomatic disc(s)

Exclusion Criteria

* Active radicular pain
* Nucleus pulposus herniation \> 5 mm, extrusion or sequestration on MRI
* Spondylolithesis at the symptomatic level
* Prior surgery at the symptomatic level
* Concomitant cervical or thoracic pain \>2/10 (VAS) in severity
* Other chronic pain conditions (i.e. Fibromyalgia Syndrome)
* Immunosuppression (i.e. Cancer, AIDS, Rheumatoid arthritis)
* Third-party (WSIB, litigation or insurance) involvement
* Psychological issues impeding recovery by history, examination and/or a Beck Depression Inventory score of \>20
* Systemic or localized infection (at the anticipated needle entry sites)
* BMI \> 35 (Obesity)
* Substance or opioid abuse
* Coagulopathy
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University of Alberta

OTHER

Sponsor Role collaborator

Baylis Medical Company

INDUSTRY

Sponsor Role lead

Responsible Party

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University of Alberta

Principal Investigators

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Robert S Burnham, MD

Role: PRINCIPAL_INVESTIGATOR

University of Alberta

Locations

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Lacombe Hospital

Lacombe, Alberta, Canada

Site Status

Countries

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Canada

References

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Kapural L, Ng A, Dalton J, Mascha E, Kapural M, de la Garza M, Mekhail N. Intervertebral disc biacuplasty for the treatment of lumbar discogenic pain: results of a six-month follow-up. Pain Med. 2008 Jan-Feb;9(1):60-7. doi: 10.1111/j.1526-4637.2007.00407.x.

Reference Type BACKGROUND
PMID: 18254768 (View on PubMed)

Kapural L. Intervertebral disk cooled bipolar radiofrequency (intradiskal biacuplasty) for the treatment of lumbar diskogenic pain: a 12-month follow-up of the pilot study. Pain Med. 2008 May-Jun;9(4):407-8. doi: 10.1111/j.1526-4637.2008.00464.x. No abstract available.

Reference Type BACKGROUND
PMID: 18489632 (View on PubMed)

Other Identifiers

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TD-RCT-Burnham

Identifier Type: -

Identifier Source: org_study_id

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