NCT02372032

Brief Summary

Lumbar disc herniation (LDH) is a common pathological process leading to spinal surgery. Open discectomy used to be a widespread procedure for surgical treatment for symptomatic LDH. Currently, several minimal invasive surgeries have been uesd widely. Percutaneous lumbar discectomy(PLD) and ozone therapy are two widely used minimal invasive treatment, and ozone therapy combined other minimally invasive treatment could improve other minimally invasive treatment's clinical effectiveness. The effectiveness of which has been proved to be comparable to conventional open discectomy. In this study, a single-blind randomized controlled trial will be performed to evaluate the effectiveness of two minimal invasive discectomy, percutaneous lumbar discectomy combined with ozone and percutaneous lumbar discectomy, for the treatment of symptomatic LDH. Two groups of patients will be investigated; 1) patients diagnosed with lumbar disc herniation undergoing PLD combined with ozone, and 2) patients diagnosed with lumbar disc herniation undergoing PLD. The primary endpoints of the study will be changes in in pain and functional status by the Visual Analog Scale (VAS) and functional status as measured by Oswestry Low Back Disability Questionnaire (Oswestry Disability Index,ODI) and Japanese Orthopaedic Association (JOA) as measured at pre- and post-operation, 1 month, 3 months, 6 months. Secondary outcomes include response evaluation by MacNab response evaluation criteria as measured at pre- and post-operation, 1 month, 3 months, 6 months. Treatment effect is defined as the difference in the mean change from baseline between the two groups. For the first time,the results of this trial will provide scientific evidence as to the relative effectiveness of PLD combined with ozone versus PLD for minimal invasive surgical treatment for symptomatic lumbar disc herniation.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
70

participants targeted

Target at below P25 for phase_3

Timeline
Completed

Started Feb 2015

Geographic Reach
1 country

1 active site

Status
unknown

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

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

February 1, 2015

Completed
5 days until next milestone

First Submitted

Initial submission to the registry

February 6, 2015

Completed
20 days until next milestone

First Posted

Study publicly available on registry

February 26, 2015

Completed
1.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2016

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2016

Completed
Last Updated

July 13, 2016

Status Verified

July 1, 2016

Enrollment Period

1.6 years

First QC Date

February 6, 2015

Last Update Submit

July 12, 2016

Conditions

Keywords

HerniationDiscectomyOzone

Outcome Measures

Primary Outcomes (3)

  • Changes from baseline in Visual Analog Scale(VAS)

    Baseline, post-op 1 month, 3 months, 6 months

  • Changes from baseline in Oswestry Low Back Disability Questionnaire(ODI)

    Baseline, post-op 1 month, 3 months, 6 months

  • Changes from baseline in Japanese Orthopaedic Association Scores(JOA)

    Baseline, post-op 1 month, 3 months, 6 months

Secondary Outcomes (1)

  • Response evaluation measured by MacNab criteria

    post-op 1 month, 3 months, 6 months

Study Arms (2)

PLD combined with ozone

EXPERIMENTAL

Patients diagnosed as lumbar disc herniation undergoing percutaneous lumbar discectomy combined with ozone therapy.

Procedure: percutaneous lumbar discectomyProcedure: ozone therapy

pure PLD

ACTIVE COMPARATOR

Patients diagnosed as lumbar disc herniation undergoing percutaneous lumbar discectomy(PLD).

Procedure: percutaneous lumbar discectomy

Interventions

process percutaneous lumbar discectomy

PLD combined with ozonepure PLD
ozone therapyPROCEDURE

percutaneous intradiscal ozone injection

PLD combined with ozone

Eligibility Criteria

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

You may qualify if:

  • Age older than 18 years.
  • or more weeks low back pain and/or lower-limb radiation pain.
  • MRI and/or CT test confirm diagnosis lumbar disc herniation and level(s).
  • Invalid after Non-steroidal anti-inflammatory medical therapy and physical therapy.
  • Pain level(Visual Analog Scale)≥5.

You may not qualify if:

  • Spinal tumors.
  • Spine infections, fractures, slippage(more than I °) and other deformities.
  • Combining with spinal stenosis, lateral recess stenosis, yellow ligament hypertrophy.
  • Nucleus pulposus herniated too much, dural sac compressed more than 50%;
  • Psychological, cognitive disorders which may affect the reliability of the outcome;
  • Previous lumbar disc surgery;
  • Bleeding tendency or severe cardiovascular disease can not tolerate surgery;
  • Don't accept the trial's informed consent;
  • Possible pregnancy.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Zhongda Hospital,Southeast University

Nanjing, Jiangsu, 210009, China

Location

MeSH Terms

Conditions

Intervertebral Disc DisplacementHernia

Condition Hierarchy (Ancestors)

Spinal DiseasesBone DiseasesMusculoskeletal DiseasesPathological Conditions, AnatomicalPathological Conditions, Signs and Symptoms

Study Officials

  • Gao-jun Teng, Ph.D,MD

    Zhongda Hospital

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
CARE PROVIDER
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor of Radiology & Chair,Department of Radiology

Study Record Dates

First Submitted

February 6, 2015

First Posted

February 26, 2015

Study Start

February 1, 2015

Primary Completion

September 1, 2016

Study Completion

September 1, 2016

Last Updated

July 13, 2016

Record last verified: 2016-07

Locations