NCT01766141

Brief Summary

It is expected that mechanical low back pain (LBP) is associated with inflammatory changes localized to the affected tissues. Could such changes be detected in cells involved in the inflammatory process in an in vitro model? The investigators wish to test such a model to compare inflammatory markers in acute and chronic LBP patients and also examine the effect of spinal manipulative treatment (SMT) on changing the level of selected key inflammatory markers. The investigators hypothesize that:

  1. 1.Proinflammatory markers will be elevated while antinflammatory markers will be reduced in acute LBP patients relative to chronic back pain patients as well as in healthy study participants who have no LBP or any inflammatory conditions (controls).
  2. 2.SMT will cause a reduction in the production of proinflammatory markers while anti-inflammatory markers will increase relative to baseline levels as well as relative to controls

Trial Health

87
On Track

Trial Health Score

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

Enrollment
63

participants targeted

Target at P50-P75 for not_applicable low-back-pain

Timeline
Completed

Started Apr 2012

Longer than P75 for not_applicable low-back-pain

Geographic Reach
1 country

1 active site

Status
completed

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

April 1, 2012

Completed
9 months until next milestone

First Submitted

Initial submission to the registry

January 8, 2013

Completed
3 days until next milestone

First Posted

Study publicly available on registry

January 11, 2013

Completed
5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2017

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2017

Completed
Last Updated

August 13, 2021

Status Verified

August 1, 2021

Enrollment Period

5.8 years

First QC Date

January 8, 2013

Last Update Submit

August 12, 2021

Conditions

Keywords

Spinal manipulationTumor necrosis factorInterleukin 1Interleukin 10Inflammatory cytokines

Outcome Measures

Primary Outcomes (1)

  • Determining proinflammatory cytokine (TNFα and IL-1β) levels in acute and chronic low back pain patients and in healthy asymptomatic subjects.

    Supernatants from whole blood cultures are collected 24 or 48 hours postincubation, are dispensed in 0.5-1.0 ml aliquots and stored at 76C. Because subject recruitment occurs over a long period,it is not desirable to process samples sporadically. This approach allows using same-batch reagents/bioassay kits for all samples in an effort to decrease error and enhance internal consistency. Results will be expressed as the difference between the values obtained for acute, chronic and control at baseline.

    Baseline (time zero) determinations to compare acute vs chronic vs control.

Secondary Outcomes (1)

  • Determining if spinal manipulative treatment will cause significant changes in the level of proinflammatory cytokine production in vitro.

    Baseline and 2 weeks i.e on the 7th visit of patients.

Other Outcomes (1)

  • Determining the levels of anti-inflammatory mediators (IL-10, IL-1ra) and chemokines produced in the same cultures.

    Baseline and 2 weeks i.e on the 7th visit of patients.

Study Arms (3)

Acute versus chronic low back pain

NO INTERVENTION

No manipulative intervention. Phlebotomy for inflammatory biomarker determinations to compare acute versus chronic at baseline.

Spinal manipulation (SMT)

EXPERIMENTAL

Inflammatory biomarker determinations after a course of 6 SMT interventions over the period of 2 weeks; a single SMT per treatment.

Other: Spinal manipulation

No treatment controls

NO INTERVENTION

Asymptomatic subjects. Biomarker determinations at time zero and again two weeks later.

Interventions

Spinal manipulation will consist of a single high velocity low amplitude thrust to a hypomobile vertebral segment determined by the treating clinician to contribute to the problem.

Spinal manipulation (SMT)

Eligibility Criteria

Age20 Years - 60 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • For Asymptomatic controls:
  • Adults between the ages of 20 and 60 years
  • No pain of any etiology
  • No inflammatory conditions including musculoskeletal complaints
  • No diabetes
  • No neoplasms
  • No spinal manipulative treatments for the past 4 weeks
  • Willing to sign informed consent
  • For low back patients:
  • Adults between the ages of 20 and 60 years
  • Having low back pain of no longer than 4 weeks (acute) or longer than 12 weeks (chronic), with or without radiation to the lower extremity.
  • No fractures
  • NoInflammatory conditions
  • No other pain complaints
  • No diabetes
  • +2 more criteria

You may not qualify if:

  • \<20 or \>60 years of age.
  • Having experienced low back pain longer than 4 wks but less than 12 wks
  • Experiencing less than 3/10 pain as judged by a VAS score determined at time of presentation to study.
  • Failure of clinician to locate a musculoskeletal indicator that will reproduce/localize the patient's pain (e.g., localized muscle tightness, soft tissue tenderness, reproduction of symptoms on digital joint challenge).
  • Currently experiencing significant pain (sprain/strain) anywhere in the body other than the low back.
  • Having been diagnosed with back pain of non-mechanical origin, including seronegative arthropathies, fibromyalgia, inflammatory joint conditions, infections, and tumors.
  • Having been diagnosed with inflammatory conditions in the past (e.g autoimmune diseases, psoriasis), or currently experiencing any inflammatory condition(s) (e.g. allergies, tooth extraction or other dental work).
  • Having been diagnosed with/experienced any infections in past 4 weeks (including common cold, oral/genital herpes, etc).
  • Having a blood clotting disorder.
  • Having received anti-inflammatory, immunosuppressive, immunostimulatory (e.g. immunization) or anticoagulant medications during the past 2 weeks.
  • Having received a spinal manipulative treatment during the past 4 weeks.
  • Unwilling to sign study consent form.
  • Unwilling/unable to adhere to study schedule. -

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Outpatient clinics, Canadian Memorial Chiropractic College

Toronto, Ontario, M2H 3J1, Canada

Location

Related Publications (1)

  • Teodorczyk-Injeyan JA, Triano JJ, Gringmuth R, DeGraauw C, Chow A, Injeyan HS. Effects of spinal manipulative therapy on inflammatory mediators in patients with non-specific low back pain: a non-randomized controlled clinical trial. Chiropr Man Therap. 2021 Jan 8;29(1):3. doi: 10.1186/s12998-020-00357-y.

MeSH Terms

Conditions

Low Back Pain

Interventions

Manipulation, Spinal

Condition Hierarchy (Ancestors)

Back PainPainNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

Musculoskeletal ManipulationsPhysical Therapy ModalitiesTherapeuticsRehabilitation

Study Officials

  • H. S. Injeyan, PhD, DC

    Canadian Memorial Chiropractic College, Toronto, Ontario, Canada

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor and Chair Department of Pathology and Microbiology

Study Record Dates

First Submitted

January 8, 2013

First Posted

January 11, 2013

Study Start

April 1, 2012

Primary Completion

December 31, 2017

Study Completion

December 31, 2017

Last Updated

August 13, 2021

Record last verified: 2021-08

Locations