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Temporomandibular Joint DisordersPhase 4ARTHROBTXNCT04810429

Comparison of Temporomandibular Joint Arthroscopy With Botulinum Toxin Injection Versus Placebo

A Phase 4 study testing Incobotulinumoxin A and TMJ surgical arthroscopy in people with Temporomandibular Joint Disorders, run by Instituto Portugues da Face at 1 site in Portugal.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

There are several studies that have considered Botulinum toxin A (BoNT-A) injections are effective in treating symptoms for Temporomandibular Joint (TMJ) disorders. BoNT-A injections improve the hyper-tonicity of mandibular muscles and its consequent joint load reduction. Read more about this study

Who is it for?
Ages 12 to 60 years
Conditions the study is for
Temporomandibular Joint Disorders
What is being tested?
Incobotulinumoxin A and TMJ surgical arthroscopy
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
15 participants
Where
1 sitePortugal
Study dates
1 Jan 2021to 1 Jun 2022
Phase
Phase 4
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 12 to 60 years
  • All sexes
  • No healthy volunteers
  • Child, Adult

Who may be able to join

  • Patients with TMJ with indication for arthroscopy
  • Age between 12-60 years old
  • Minimum level of pain for inclusion should be 5/10 (on a 0-10 VAS scale)

Who cannot join

  • Previous treatment to TMD
  • Previous use of facial Botulinum Toxin
  • Any contraindication for the use of BTXA according to XEOMIN SmPC

Trial locations and contacts

1 site in 1 country.

Portugal1 site
  • Instituto Português da Face

    Lisbon, 1050-227

Other trials in Portugal

About this study

Official title: Comparison of Temporomandibular Joint Arthroscopy With Botulinum Toxin Injection Versus Placebo: a Randomized Clinical Trial

There are several studies that have considered Botulinum toxin A (BoNT-A) injections are effective in treating symptoms for Temporomandibular Joint (TMJ) disorders. BoNT-A injections improve the hyper-tonicity of mandibular muscles and its consequent joint load reduction. Also injections of BoNT-A, for patients with articular disc displacement, resulted in pain relief and return of the normal movements of the mandible. The main goal of this study is to test the beneficial impact of BoNT-A injections in the masticatory muscles of patients submitted to TMJ surgical arthroscopy.

Read the detailed description

Study Objective:

To investigate the potential performance of incobotulinumtoxin-A (BTXA) in patients submitted to TMJ surgical arthroscopy. Besides the acceptable good outcomes of TMJ arthroscopy, the authors believe that using a single injection of BTXA into the temporalis and masseter muscles could reduce joint loading and pain, improving TMJ arthroscopy results.

The proposed explanation for this study:

TMJ arthroscopy is a minimal invasive surgical technique for different types of temporomandibular joint (TMJ) internal derangements. Besides the acceptable outcomes of TMJ arthroscopy, the authors believe that adding to this treatment a single injection of BTXA into the temporalis and masseter muscles could reduce joint loading, improving TMJ arthroscopic results.

Being tested
Incobotulinumoxin A, TMJ surgical arthroscopy
Keywords
IncobotulinumoxinA, Temporomandibular Joint Disorder, Temporomandibular Joint arthroscopy, Randomized clinical trial
Medical subject headings
Temporomandibular Joint Disorders

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Incobotulinumoxin ADrug

    XEOMIN® (incobotulinumtoxinA) is an approved medication that inhibits the release of acetylcholine and muscle blockage. Xeomin is indicated for the symptomatic treatment of blepharospasm and hemifacial spasm, cervical dystonia of a predominantly rotational type (spasmodic torticollis), spasticity of the upper limbs and chronic sialorrhea due to neurological changes. Xeomin comes as a white powder for solution for injection. When dissolved Xeomin is a clear, colorless solution that does not contain particles. Xeomin is reconstituted before use with sterile sodium chloride 9 mg / ml (0.9%) solution, without preservatives, for injections.

    The active substance is Clostridium botulinum type A neurotoxin (150 kD), without complexing proteins. The other components are human albumin and sucrose.

  • TMJ surgical arthroscopyProcedure or surgery

    TMJ arthroscopy is a minimal invasive surgical technique for different types of temporomandibular joint (TMJ) internal derangements. Besides the acceptable outcomes of TMJ arthroscopy, the authors believe that adding to this treatment a single injection of BTXA into the temporalis and masseter muscles could reduce joint loading, improving TMJ arthroscopic results.

Study groups in NCT04810429
Study groupRoleWhat they receive
PlaceboPlacebo comparatorTMJ arthroscopy and Saline solution NaCl 0,9% in 2 syringes with 1 ml each. Injected in Right Masseter (0.5ml), Left Masseter (0.5ml), Right Temporalis (0.5ml) and Left Temporalis (0.5ml).
Receives: Procedure: TMJ surgical arthroscopy
IncobotulinumoxinAActive comparatorTMJ arthroscopy and Dose of IncobotulinumoxinA to be injected 100 U distributed in 2 syringes with 1 ml each: 25U (0.5ml) in Right Masseter / 25U (0.5ml) in Left Masseter / 25U (0.5ml) in Right Temporalis / 25U in Left Temporalis.
Receives: Drug: Incobotulinumoxin A; Procedure: TMJ surgical arthroscopy

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. VAS score

    Improvement in TMJ pain: measured by the patient using a Visual Analogue scale (VAS), with a range from 0 to 10, with 0 being no pain and 10 having maximum unbearable pain. VAS score will be measured every week before surgery and in the fifth week after surgery.

    Measured: 5 weeks after injection and TMJ arthroscopy

Secondary outcomes (5)
  1. Palpable joint click

    Yes or No

    Measured: 5 weeks after injection and TMJ arthroscopy

  2. Diet consistency tolerated

    regular diet, basic diet, liquid diet

    Measured: 5 weeks after injection and TMJ arthroscopy

  3. Muscle Tenderness

    Masseter muscle, temporalis muscle, temporalis tendon, and lateral capsule of the TMJ) - Muscle sensitivity scale (0-3)

    Measured: 5 weeks after injection and TMJ arthroscopy

  4. Maximum Mouth Opening

    in cm

    Measured: 5 weeks after injection and TMJ arthroscopy

  5. GICS

    Global Impression of change by the subject

    Measured: 5 weeks after injection and TMJ arthroscopy

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted23 Mar 2021
  2. Study start1 Jan 2021
  3. Primary completion31 Dec 2021
  4. Study completion1 Jun 2022

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Model description
For this randomized clinical trial an appropriate number of sealed envelopes will be prepared: 15 for placebo and 15 for the treated group. Patients with inclusion criteria will be seen in an orofacial pain session and assessed for pain using the VAS scale, by scoring the degree of pain between 0 (absence of pain) and 10 (maximum pain). Then the patients are proposed for TMJ arthroscopy. The nurse enters the room with the patient and asks to the patient to choose an envelope. In this moment, the envelope is placed on a table and the patient writes his name. The nurse accompanies the patient to the doctor's office. Alone, the nurse opens the envelope and sees the code and the indication of PLACEBO or BTXA. Then, she will prepare in her room, isolated from the whole team, 2 syringes. She will put the envelope in a bag and deliver a tray with 2 syringes for treatment and a code to identify the patient in the treatment room. The doctor injects the syringes according to the protocol.
Masking
Single blind
Who is masked
Investigator
Enrolment
15 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04810429
Sponsor's protocol ID
Eudrac: 2020-005610-18
Acronym
ARTHROBTX
Status last verified
Jun 2022
First submitted
11 Mar 2021
Last updated
21 Oct 2022
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: A study Protocol and clinical study report will be avaiable in the end of the study.

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Incobotulinumoxin A and TMJ surgical arthroscopy in people with Temporomandibular Joint Disorders, run by Instituto Portugues da Face at 1 site in Portugal.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 21 Oct 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Portugal. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

VAS score (time frame: 5 weeks after injection and TMJ arthroscopy). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 21 Oct 2022.

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