Using Botulinumtoxin A to treat pain in jaw disorders

Botulinumtoxin A as a Treatment for Myalgia and Myofacial Pain in Patient With Temporomandibulardisorders - a Quality Study Associated to a New Treatment Routine

Phase 3 Interventional Region Stockholm · NCT06941636

This study is testing if Botulinumtoxin A injections can help reduce pain and improve life for people with jaw disorders caused by muscle issues.

Quick facts

PhasePhase 3
Study typeInterventional
Enrollment90 (estimated)
Ages18 Years to 50 Years
SexFemale
SponsorRegion Stockholm Government
Locations1 site (Stockholm)
Trial IDNCT06941636 on ClinicalTrials.gov

What this trial studies

This study investigates the effectiveness of Botulinumtoxin A (BTX) injections in the masseter and temporal muscles for patients suffering from myogenous temporomandibular disorders (TMD). The primary goal is to determine if BTX can reduce pain and improve quality of life, while also exploring whether the effects are dose-dependent. Additionally, the study aims to identify differences in treatment outcomes among various sub-groups of myogenous TMD to personalize pain management strategies.

Who should consider this trial

Good fit: Ideal candidates are individuals diagnosed with myalgia or myofascial pain related to temporomandibular disorders, experiencing moderate to severe pain for over three months.

Not a fit: Patients with systemic inflammatory diseases, widespread pain conditions, or those who have received recent treatments for orofacial pain may not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment could significantly alleviate pain and enhance the quality of life for patients with myogenous TMD.

How similar studies have performed: Previous studies have shown promising results with BTX for pain management in similar conditions, suggesting potential for success in this approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Has given a written consent
* Diagnose of myalgia, myofacial pain or myofascial pain with referred pain according
* Average pain due to NRS ≥ 3 for more than three months
* Palpationpain in masseter or temporalis.
* Eventual treatment for orofacial pain \> three months ago.
* Adequate contraceptives and a negative pregnancy test.

Patients will still be included even if they have one or more co-diagnoses

* Discdisplacement with or without reduction
* Degenerative joint disease
* Arthralgia

Exclusion Criteria:

* Treatment with BTX during the last 12 months
* Treatment for orofacial pain within the last 3 months.
* Systemic inflammatory diseases (rheumatoid arthritis, psoriatic arthritis, ankylosing spondylitis)
* Widespread pain e.g., fibromyalgia
* Neuropathic pain
* Neurologic disease (myasthenia gravis)
* Pain of dental origin
* Use of muscle relaxants, or aminoglycoside antibiotics
* Pregnancy or nursing
* Hypersensitivity to BTX
* Neuropsychiatric conditions.
* Difficulties understanding the Swedish language

Where this trial is running

Stockholm

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Temporomandibular Disorder
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.