Trigger Point Injections Versus Lidocaine Patch for Myofascial Pain in the Emergency Department

  • End date
    Dec 17, 2024
  • participants needed
  • sponsor
    University of California, Irvine
Updated on 17 December 2021
Accepts healthy volunteers


The aim of this trial is to investigate the efficacy of trigger point injections with 1% lidocaine in reducing myofascial back and neck pain in the Emergency Department compared to lidocaine patches 5%.


After being informed about the study and the potential risks and benefits, all patients will be randomized into either the trigger point injection group with 1% lidocaine, or the 5% lidocaine patch group. Pain scores will be recorded while in the emergency department, and we will have a 5 day follow-up phone call to assess efficacy. Patients who present to UCI Department of Emergency medicine will be screened and recruited prospectively, and information regarding this study will be available on as a method of recruitment.

Condition Myofascial Trigger Point Pain, Myofacial Pain
Treatment Lidocaine patch 5%, Trigger point injection with 1% lidocaine
Clinical Study IdentifierNCT05151510
SponsorUniversity of California, Irvine
Last Modified on17 December 2021


Yes No Not Sure

Inclusion Criteria

years or older
Diagnosed with myofascial pain of the posterior neck or back. The diagnosis of myofascial pain was based on established criteria of having a palpable taut band (trigger point) that when depressed reproduced the patient's pain

Exclusion Criteria

midline spinal tenderness
evidence of radiculopathy
have an allergy to lidocaine
altered or deemed incapable of making informed consent
had signs of infection or skin breakdown over the trigger point
Clear my responses

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Additional screening procedures may be conducted by the study team before you can be confirmed eligible to participate.

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If you are confirmed eligible after full screening, you will be required to understand and sign the informed consent if you decide to enroll in the study. Once enrolled you may be asked to make scheduled visits over a period of time.

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Complete your scheduled study participation activities and then you are done. You may receive summary of study results if provided by the sponsor.

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