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Efficacy of Non-invasive Vagus Nerve Stimulation for Axial Spondyloarthritis Resistant to Biotherapies
Sponsor: Assistance Publique - Hôpitaux de Paris
Summary
The primary objective of the study is to study the change in SpA disease activity, according to ASAS20 definition (Anderson et al., 2001), after 8 weeks of VNS treatment versus placebo non-specific stimulation (control group). The secondary objectives of the Clinical Investigation are to show differences in disease evolution between the active and placebo periods of 8 weeks treatment with active VNS versus placebo VNS of the following items: 1. Change in disease activity according to "ASAS40" criteria 2. Obtaining a partial remission according to the ASAS definition 3. Change in BASFI 4. Change in C-reactive protein (CRP)serum level and erythrocytes sedimentation rate (ESR), 5. Change in ASDAS\_CRP and ASDAS\_ESR 6. Difference in levels of circulating cytokines, IL-6, IL-23, IL-17, IL-33 and of matrix metallopeptidases (MMP3-8-9). 7. Change in quality of life : assessment according to the following indexes: SF-36, AS Quality of Life (ASQOL) 8. Change in Health Index of patient with SpA (ASAS HI) and of the Productivity at Work Index (WPI) 9. Change in fatigue (BASDAI 1st question) and global pain 10. Change in Anxiety and Depression Assessment (HAD) 11. Change in BASMI 12. Change in non-steroidal anti-inflammatory drugs (NSAID) intake score.
Official title: Randomized Cross Over Study Assessing the Effectiveness of Non-invasive Vagus Nerve Stimulation in Patients With Axial Spondyloarthritis Resistant to Biotherapies
Key Details
Gender
All
Age Range
18 Years - 90 Years
Study Type
INTERVENTIONAL
Enrollment
120
Start Date
2025-09
Completion Date
2026-12
Last Updated
2025-04-27
Healthy Volunteers
No
Conditions
Interventions
active stimulation then placebo stimulation
The active VNS stimulation will be applied in the hollow of the left outer ear on the auricular branch of the vagus nerve (cymba conchae), a session of 1 hour of stimulation per week, at a weak intensity value (between 2 to 5 mA), depending on the tolerance of each patient. A transcutaneous vagus nerve stimulator Tens Eco Plus SCHWA MEDICO™ France with the Garches Azabou-Bao vagal electrode (the G electrode) will be used in this Clinical Investigation. VNS placebo stimulation will be performed under the same conditions and parameters as active VNS stimulation, but at a different site: the left ear lobule according to previously published methods (Fang et al. 2017, Frangos et al. 2015). The two stimulation periods will be separated by a 4 weeks wash-out period.
placebo stimulation then active stimulation
VNS placebo stimulation will be performed under the same conditions and parameters as active VNS stimulation, but at a different site: the left ear lobule according to previously published methods (Fang et al. 2017, Frangos et al. 2015). The active VNS stimulation will be applied in the hollow of the left outer ear on the auricular branch of the vagus nerve (cymba conchae), a session of 1 hour of stimulation per week, at a weak intensity value (between 2 to 5 mA), depending on the tolerance of each patient. A transcutaneous vagus nerve stimulator Tens Eco Plus SCHWA MEDICO™ France with the Garches Azabou-Bao vagal electrode (the G electrode) will be used in this Clinical Investigation. The two stimulation periods will be separated by a 4 weeks wash-out period.
Locations (1)
Neurophysiology and Neuromodulation Unit, Department of Physiology, Raymond Poincaré Hospital, APHP
Garches, Hauts-de-seine, France