Study of Cytokines Serum Levels in Chronic Low Back Pain (cytokine)

October 6, 2009 updated by: Federal University of São Paulo

Analytical Transversal Study of Cytokines Serum Levels in Chronic Low Back Pain Due to Herniated Disk

The purpose of this study is to:

  • evaluate if there is an association between elevated levels of cytokines and chronic pain due to herniated disk disease
  • measured cytokines levels in chronic low back pain and in healthy subjects.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

23 patients with at least three months of back pain due to herniated disk disease were selected Diagnosis was confirmed by magnetic resonance imaging (MRI) or computerized tomography (CT) imaging of the spine for all patients. In addition, pain severity had to be ³ 5 points on the Numerical Rating Scale (NRS) ranging from zero (no pain) to 10 (worst imaginable pain).

The exclusion criteria were defined as one or more of the following: psychiatric disorders, systemic or inflammatory disease, history of allergy, presence of motor deficits, history of blood dyscrasia, pregnancy, active infection, tumor, use of analgesic drugs in the week before or inability to come to the hospital for evaluation.

Study Type

Interventional

Enrollment (Actual)

23

Phase

  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Brazil
    • Bahia
      • Salvador, Bahia, Brazil
        • Universidade Federal da Bahia

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

20 years to 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • 23 patients

    • least three months of back pain due to herniated disk disease
    • pain severity had to be 5 points on the Numerical Rating Scale (NRS)

  • 10 healthy volunteers:

    • without previous history of back pain

Exclusion Criteria:

  • One or more of the following:

    • psychiatric disorders
    • systemic or inflammatory disease
    • history of allergy
    • presence of motor deficits
    • history of blood dyscrasia
    • pregnancy
    • active infection, tumor
    • use of analgesic drugs in the week before
    • inability to come to the hospital for evaluation.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Health Services Research
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Other: cytokine levels
Serum levels of pro-inflammatory cytokines were measured using the Enzyme Linked Immuno Sorbent Assay (ELISA) technique in 23 patients with pain due to herniated disk disease (G1) as well as in 10 control healthy subject
Other: blood collect
Five milliliters of venous blood was drawn in the morning from subjects and immediately centrifuged.
Other Names:
  • serum levels

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
cytokines levels in patients with chronic low back pain and in healthy subjects
Time Frame: 30 days after collect
30 days after collect

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Federal University of São Paulo

Collaborators

Federal University of Bahia

Investigators

  • Principal Investigator: Durval C Kraychet, Federal University of Bahia

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

August 1, 2003

Primary Completion (Actual)

September 1, 2004

Study Completion (Actual)

March 1, 2005

Study Registration Dates

First Submitted

October 6, 2009

First Submitted That Met QC Criteria

October 6, 2009

First Posted (Estimate)

October 7, 2009

Study Record Updates

Last Update Posted (Estimate)

October 7, 2009

Last Update Submitted That Met QC Criteria

October 6, 2009

Last Verified

October 1, 2009

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • cytokine

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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