Effects of Extracorporeal Shock Wave Therapy and Low Level Laser Therapy in Myofascial Pain Syndrome

February 17, 2018 updated by: Márta Király, Petz Aladar County Teaching Hospital

Comparative Study of Shock Wave Therapy and Low Level Laser Therapy Effect in Patients With Myofascial Pain Syndrome of the Trapezius

This study evaluates the effects of low level laser therapy and extracorporeal shock wave therapy in patients with myofascial pain syndrome of the upper trapezius. Half of the patients receive laser therapy, half of them receive shock wave therapy for three weeks.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Low Level Laser Therapy (LLLT) inducing photochemical and photothermal effect, increases blood flow and vascular permeability and improves cell metabolism. All these lead to muscle recovery. It also activates somatosensory receptors of the skin and reduces local pain and muscle spasm.

The specific mechanisms of extracorporeal shock wave therapy (ESWT) in treating musculoskeletal pain remain unclear. It reduces pain and inflammation by modulating nitrogen-monoxide (NO) and vascular endothelial growth factor (VEGF). It can destroy sensory unmyelinated nerve fibers, and stimulate neovascularization and collagen synthesis in degenerative tissues.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
60

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

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

  • Hungary
      • Győr, Hungary, 9025
        • Petz Aladár County Teaching Hospital

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • patients over 18 years of age with myofascial pain syndrome meeting the Simon's diagnostic criteria (5 major and 1 minor) for at least 8 weeks (chronic pain)
  • no physiotherapy or local injection within 3 months before starting the study

Exclusion Criteria:

  • acute onset of neck pain
  • physiotherapy or local injection within 3 months before starting the study
  • abnormal lab test (ESR, hematology)
  • infection, fever
  • cervical radiculopathy
  • uncontrolled hypertension, anticoagulation or defect in blood coagulation
  • previous cervical operaton

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: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Active Comparator: Extracorporeal shock wave therapy group
Patients in the shock wave therapy group received total of 1000 shock waves for each treatment at the frequency of 10Hz, with 2 Bar pressure and energy flux density (EFD) of 0.25 mJ/mm2 per minute by using BTL-6000 SWT Topline Power® 3 times with a week's interval between the treatments.
Device: Extracorporeal Shock Wave Therapy
shock wave therapy once a week for three weeks, total of 1000 shock waves for each treatment at the frequency of 10Hz, with 2 Bar pressure and energy flux density (EFD) of 0.25 mJ/mm2 per minute using a BTL-6000 SWT Topline Power® device
Active Comparator: Low Level Laser Therapy group
Patients in the laser therapy group received LLLT once a day for three weeks (altogether 15 working days) to the trigger points and around them in the upper trapezius. The type of laser used: PR999 4 Watt (W) scanning laser; Medical Italia®, around trigger points with 3 Joule /centimeter² (J/cm²), power 800 milliwatt (mW), frequency 2000 Hertz (Hz), on trigger points with 9 J/cm², power 2000mW, frequency 5000Hz for total of 2 minutes on each spot.
Device: Low Level Laser Therapy
LLLT once a day for three weeks (altogether 15 working days) using a PR999 4W scanning laser device; around trigger points with 3 J/cm2, power 800 mW, frequency 2000Hz, on trigger points with 9 J/cm², power 2000mW, frequency 5000Hz for total of 2 minutes on each spot

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
change in severity of pain at rest
Time Frame: week 0 and week
change from baseline severity of pain at rest recorded on a 100 mm visual analogue scale, where 0 mm represents no pain, 100 mm represents unbearable pain.
week 0 and week
change in severity of pain at rest
Time Frame: week 0 and week 15
change from baseline severity of pain at rest recorded on a 100 mm visual analogue scale, where 0 mm represents no pain, 100 mm represents unbearable pain.
week 0 and week 15
change in severity of pressure pain
Time Frame: week 0 and week 3
change from baseline severity of pressure pain recorded on a 100 mm visual analogue scale, where 0 mm represents no pain, 100 mm represents unbearable pain.
week 0 and week 3
change in severity of pressure pain
Time Frame: week 0 and week 15
change from baseline severity of pressure pain recorded on a 100 mm visual analogue scale, where 0 mm represents no pain, 100 mm represents unbearable pain.
week 0 and week 15
change in function (percentage of disability)
Time Frame: week 0 and week 3
change from baseline Neck Disability Index (NDI) at week 3. It includes 10 part; pain intensity, personal care, lifting objects, reading, headache, concentration, work, driving, sleeping and entertainments. There are six presumptions; the first is given 0 and the last presumption has the score of 5. The total maximum score is 50, that represents 100% disability. The lower score represents better outcome.
week 0 and week 3
change in function (percentage of disability)
Time Frame: week 0 and week 15
change from baseline Neck Disability Index (NDI) at week 15. It includes 10 part; pain intensity, personal care, lifting objects, reading, headache, concentration, work, driving, sleeping and entertainments. There are six presumptions; the first is given 0 and the last presumption has the score of 5. The total maximum score is 50, that represents 100% disability. The lower score represents better outcome.
week 0 and week 15
change in quality of life
Time Frame: week 0 and week 3
change from baseline quality of life (36-Item Short Form Health Survey /SF-36/) at week 3. It consists of eight scaled scores (vitality, physical functioning, bodily pain, general health perceptions, physical role functioning, emotional role functioning, social role functioning, mental health), which are the weighted sums of the questions in their section. Each scale is directly transformed into a 0-100 scale on the assumption that each question carries equal weight. The lower the score the more the disability, i.e. a score of zero is equivalent to maximum disability.
week 0 and week 3
change in quality of life
Time Frame: week 0 and week 15
change from baseline quality of life (SF-36) at week 15. It consists of eight scaled scores (vitality, physical functioning, bodily pain, general health perceptions, physical role functioning, emotional role functioning, social role functioning, mental health), which are the weighted sums of the questions in their section. Each scale is directly transformed into a 0-100 scale on the assumption that each question carries equal weight. The lower the score the more the disability, i.e. a score of zero is equivalent to maximum disability.
week 0 and week 15

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Petz Aladar County Teaching Hospital

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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 (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
February 1, 2016

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
February 1, 2017

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
September 1, 2017

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
February 11, 2018

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 11, 2018

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
February 19, 2018

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
February 20, 2018

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 17, 2018

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
February 1, 2018

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • PetzAladarCTH

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

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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