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Clinical 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).


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To date, 2 published randomized controlled trials and one unpublished Phase Ib clinical trial have shown that botulinum toxin injected intraarticularly improves pain and functionality in gonarthrosis.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


Study Design


Related Conditions & MeSH terms


NCT number NCT03726788
Study type Interventional
Source Lille Catholic University
Contact Amélie Lansiaux, MD PhD
Phone 03 20 22 52 69
Email lansiaux.amelie@ghicl.net
Status Not yet recruiting
Phase Phase 2
Start date September 2019
Completion date April 2022

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