NCT00940810

Brief Summary

The purpose of this study is to compare the plasma disc decompression (PDD) procedure to conservative care (physiotherapy) for the treatment of patients with radicular pain originating from a disc protrusion. Treatment efficacy and rate of improvement is evaluated at 8 weeks after treatment start and followed-up for 1 year after treatment start.

Trial Health

90
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
46

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Aug 2007

Longer than P75 for not_applicable

Geographic Reach
3 countries

3 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

August 1, 2007

Completed
2 years until next milestone

First Submitted

Initial submission to the registry

July 15, 2009

Completed
1 day until next milestone

First Posted

Study publicly available on registry

July 16, 2009

Completed
1.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 1, 2010

Completed
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

November 1, 2011

Completed
Last Updated

August 26, 2015

Status Verified

August 1, 2015

Enrollment Period

3.3 years

First QC Date

July 15, 2009

Last Update Submit

August 25, 2015

Conditions

Outcome Measures

Primary Outcomes (1)

  • Pain status change assessed using a visual analogue scale (VAS) for radicular pain intensity.

    8 weeks post treatment start

Study Arms (2)

PDD procedure

EXPERIMENTAL
Procedure: Plasma Disc Decompression/Nucleoplasty

Conservative Care

ACTIVE COMPARATOR
Procedure: Conservative Care (physiotherapy)

Interventions

Subjects assigned to the PDD Group will be scheduled to receive the plasma disc decompression procedure using the Coblation® method. Similarly to in Conservative Care group, subjects will be followed-up at 2, 8 weeks, 6 and 12 months (calculated from the date of the PDD procedure). The follow-up visits will consist of a brief physical examination in the clinic and completion of study questionnaires.

PDD procedure

Subjects assigned to the Conservative Care Group will be scheduled to receive physical therapy according to standard and customary care locally. Subjects will be followed-up at 2, 8 weeks, 6 and 12 months . (Calculated from the time of first going through the individual training programme).The follow-up visits will consist of a brief physical examination in the clinic and completion of study questionnaires.

Conservative Care

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patient has one symptomatic contained, focal herniated lumbar disc.
  • Patient's age should be at least 18 years old and no more than 65 years old.
  • A VAS score for radicular pain of 50 or greater on a scale of 0 to 100.
  • Radicular pain concordant with image findings (MRI/CT not older than 12 months).
  • Disc height greater or equal to 50% of expected height in the range of a patient's normal anatomic variations and expected changes due to age.
  • Patient signs informed consent.

You may not qualify if:

  • Patient is pregnant, or pregnancy is suspected or planned within the study timeframe.
  • Patient has a cardiac pacemaker, automatic defibrillator, or any peripheral stimulator leads in the lumbar area.
  • Allergy to contrast media or drugs to be used in the intended procedure.
  • Medical co-morbidities that preclude surgical intervention.
  • Patient is receiving anti-psychotic therapy.
  • Patient is a prisoner.
  • Patient is incapable of understanding or responding to the study questionnaires.
  • History of previous spinal surgery at, or directly adjacent to, the level to be treated.
  • Patient is morbidly obese (BMI ≥ 40).
  • Patient is simultaneously participating in another device or drug study related to limb/axial pain.
  • Patient has a spinal fracture, tumor or infection.
  • Radicular pain originating from more than one disc level.
  • Axial (back) pain greater than radicular (leg) pain.
  • Clinical evidence of cauda equina syndrome.
  • Progressive neurologic deficit.
  • +3 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (3)

Raahe Hospital

Raahe, 92100, Finland

Location

Storängskliniken

Stockholm, 115 42, Sweden

Location

Pallium Reseach Group; Pain Management, L Ward Seacroft Hospital

Leeds, United Kingdom

Location

MeSH Terms

Interventions

Physical Therapy Modalities

Intervention Hierarchy (Ancestors)

TherapeuticsRehabilitation

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 15, 2009

First Posted

July 16, 2009

Study Start

August 1, 2007

Primary Completion

November 1, 2010

Study Completion

November 1, 2011

Last Updated

August 26, 2015

Record last verified: 2015-08

Locations