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Joint DiseasesPhase 2TOXARTNCT03726788

Intra Articular Injection of Botulinum Toxin Versus Corticoids in Gonarthrosis

A Phase 2 study testing Botulinum Toxin Type A 100U, Botulinum Toxin Type A 200U and Triamcinolone Hexacetonide Inj Susp 20 MG/ML in people with Joint Diseases and Knee, run by Lille Catholic University at 1 site in France.

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
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Trial summary

We believe we can demonstrate a link between the analgesic action of intra-articular injection of botulinum toxin and synovial inflammation by Dynamic Contrast Enhancement (DCE) perfusion Magnetic Resonance Imaging (MRI). Read more about this study

Who is it for?
Ages 40 to 75 years
Conditions the study is for
Joint Diseases, Knee, Therapeutics
What is being tested?
Botulinum Toxin Type A 100U, Botulinum Toxin Type A 200U and Triamcinolone Hexacetonide Inj Susp 20 MG/ML
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
0 participants
Where
1 siteFrance
Study dates
Sep 2019to Apr 2022
Phase
Phase 2
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 40 to 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Presenting gonarthrosis of degenerative origin, Kellgren/Lawrence Radiological Stage I to III, with a maturity of more than 18 months
  • With pain intensity greater than or equal to 50/100 on an VAS
  • In case of bilateral gonarthrosis, the VAS of the contralateral knee must be less than or equal to 30/100
  • Presenting a failure of conventional per os treatments (non-steroidal anti-inflammatory drugs, analgesics)
  • Affiliated with a social security scheme
  • For women of childbearing age:
  • effective contraception for the duration of the study

Who cannot join

  • Patient presenting at the time of the inclusion visit: an inflammatory attack, septic or inflammatory arthritis, a generalized infectious episode in progress
  • Local or regional local skin lesion
  • Need of an arthroplasty within the next 12 months
  • Having received corticosteroids or other molecules in intra-articular infiltration in the last 6 months
  • History of traumatic knee injury (bone injury in the past 24 months), bone, ligament or meniscal surgery in the past 24 months
  • History of disabling peripheral nerve injury
Show all 14Show fewer
  • Severe bleeding disorders, anticoagulant treatment in progress or double antiplatelet aggregation
  • BMI > 35 kg/m2
  • Coxarthrosis with projected knee pain
  • Pregnant or breastfeeding woman
  • Patient under guardianship and protection of justice
  • Allergy/contraindication to botulinum toxin type A, corticoids
  • Usual contraindication to MRI
  • Allergy to the contrast product

Trial locations and contacts

1 site in 1 country.

France1 site
  • Lille Catholic University

    Lille, 59000

Other trials in France

About this study

Official title: Analysis of Antalgic Efficacy of an Intra Articular Injection of Botulinum Toxin Versus Corticoids in Gonarthrosis by Perfusion MRI:a Superiority, Randomized, Controlled, Double Blind Study

We believe we can demonstrate a link between the analgesic action of intra-articular injection of botulinum toxin and synovial inflammation by Dynamic Contrast Enhancement (DCE) perfusion Magnetic Resonance Imaging (MRI).

Read the detailed description

Knee osteoarthritis is one of the most common causes of joint pain and functional disability in the general population.

Intra-articular infiltrations of corticoids are indicated for painful crisis especially if accompanied of effusion. However, this effect lasts only 2 weeks.

Given the lack of effective long-term medical-infiltrative treatment, we believe that botulinum toxin type A could be used by its direct action on mediators of neuro-gene inflammation at the joint level and its indirect medullary action by retrograde migration.

To date, 2 published randomized controlled trials and one unpublished Phase Ib clinical trial have shown that botulinum toxin injected intraarticularly improves pain and functionality in gonarthrosis.

Dynamic Contrast Enhancement (DCE) Magnetic Resonance Imaging (MRI) demonstrated the correlation between synovial inflammation and pain in gonarthrosis in a cohort of 454 subjects. It has also made it possible, via the monitoring of synovial inflammation, to demonstrate the efficacy of treatments in patients suffering from rheumatoid arthritis in the early phase, juvenile chronic arthritis or osteoarthritis.

DCE MRI perfusion therefore appears here as the technique of choice to follow the evolution of synovial inflammation after botulinum toxin injection in patients with symptomatic gonarthrosis.

Being tested
Botulinum Toxin Type A 100U, Botulinum Toxin Type A 200U, Triamcinolone Hexacetonide Inj Susp 20 MG/ML
Keywords
knee, Arthrosis, Botulinum toxin, Magnetic Resonance Imaging
Medical subject headings
Joint Diseases, Osteoarthritis

What participants receive

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

  • Botulinum Toxin Type A 100UDrug

    Also called Botox 100 UNT Injection

    one intra-articular injection of 100 U of botulinum toxin type A, diluted in 2 ml of 0.9% SSI

  • Botulinum Toxin Type A 200UDrug

    Also called Botox 200 UNT Injection

    one intra-articular injection of 200 U of botulinum toxin type A, diluted in 4 ml of 0.9% SSI

  • Triamcinolone Hexacetonide Inj Susp 20 MG/MLDrug

    Also called HEXATRIONE

    one intra-articular injection of 2 ml Triamcinolone Hexacetonide

Study groups in NCT03726788
Study groupRoleWhat they receive
Botulinum Toxin Type A 100UExperimentalone intra-articular injection in the painful knee 30 days after the inclusion visit
Receives: Drug: Botulinum Toxin Type A 100U
Botulinum Toxin Type A 200UExperimentalone intra-articular injection in the painful knee 30 days after the inclusion visit
Receives: Drug: Botulinum Toxin Type A 200U
Triamcinolone Hexacetonide 20 MG/MLActive comparatorone intra-articular injection in the painful knee 30 days after the inclusion visit
Receives: Drug: Triamcinolone Hexacetonide Inj Susp 20 MG/ML

What is being measured

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

  1. Assesment of vascularization by dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) according to the % Area Under the Curve (AUC) of perfusion value

    Measured: one month post-injection

Secondary outcomes (6)
  1. Pain analysis by the visual analogue scale (VAS)

    Evolution kinetics of daily pain collected during the first 3 months post-injection allowing to deduce the onset and duration of analgesic efficacy in number of days. The pain VAS is a continuous scale comprised of a horizontal line, usually 10 centimeters (100 mm) in length, anchored by 2 verbal descriptors, one for each symptom extreme: "no pain" (score of 0) and "pain as bad as it could be" (score of 100 [100-mm scale])

    Measured: during the first 3 months after injection

  2. Joint amplitude measured by goniometry

    To measure range of motion of the knee

    Measured: at 1, 3, 6 month post-injection

  3. Western Ontario McMaster University Osteoarthritis (WOMAC) Index

    An arthritic pain scoring system ranging from 0-no pain/disability to 100-most severe pain/disability

    Measured: at 1, 3, 6 month post-injection

  4. Two minutes walk

    This test measure the distance walked in two minutes

    Measured: at 1, 3, 6 month post-injection

  5. Frequency of consumption of analgesics

    Measured: at 1, 3, 6 month post-injection

  6. Amount of consumption of analgesics

    Measured: at 1, 3, 6 month post-injection

Timeline

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

  1. First posted31 Oct 2018
  2. Study startSep 2019 (estimated)
  3. Primary completionNov 2021 (estimated)
  4. Study completionApr 2022 (estimated)

Why it stopped: discontinuation of the study

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 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
0 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03726788
Sponsor's protocol ID
RC-P0037
Acronym
TOXART
Status last verified
Sep 2025
First submitted
29 Oct 2018
Last updated
10 Sep 2025
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Botulinum Toxin Type A 100U, Botulinum Toxin Type A 200U and Triamcinolone Hexacetonide Inj Susp 20 MG/ML in people with Joint Diseases and Knee, run by Lille Catholic University at 1 site in France.

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 7 inclusion and 14 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: withdrawn, as of the sponsor's last update on 10 Sep 2025. 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 France. 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. 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 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

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 was withdrawn before enrolling participants, so there are no results.

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?

Assesment of vascularization by dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) according to the % Area Under the Curve (AUC) of perfusion value (time frame: one month post-injection). 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 10 Sep 2025.

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