Condition · Evidence Hub
Vagus Nerve Stimulation for Multiple Sclerosis
Does vagus nerve stimulation help with multiple sclerosis? 9 human studies have investigated VNS for multiple sclerosis, including 1 systematic review, 4 controlled trials, and 3 narrative reviews, published between 2005 and 2024, with 4 published since 2022. Studies use transcutaneous auricular (taVNS), implanted (iVNS), and transcutaneous cervical (tcVNS) stimulation. Findings vary by study design and population; the studies below are ranked by evidence strength so you can weigh the research directly.
1 systematic review · 4 controlled trials · 3 narrative reviews · 1 case report
Evidence by Tier
strongest → weakest
- 1Systematic reviews & meta-analyses
- 4Controlled clinical trials
- 3Narrative & scoping reviews
- 1Case reports & series
Stimulation Method
- 7taVNS
- 1iVNS
- 1tcVNS
Research Momentum
4 of 9 studies (44%) published since 2022 — an actively growing evidence base.
The studies
9 studies · strongest evidence firstThe Vagus Nerve Somatosensory-evoked Potential in Neural Disorders: Systematic Review and Illustrative Vignettes
Leon-Ariza et al. · Clinical EEG and neuroscience · 2022 · n = 297
systematic reviewstaVNSVagus nerve stimulation enhances remyelination and decreases innate neuroinflammation in lysolecithin-induced demyelination
Bachmann et al. · Brain stimulation · 2024
controlled trialstcVNSPaired vagus nerve stimulation drives precise remyelination and motor recovery after myelin loss
Huang et al. · bioRxiv : the preprint server for biology · 2024
controlled trialstaVNSAnti-inflammatory effects of vagus nerve stimulation in pediatric patients with epilepsy
Kaur et al. · Frontiers in immunology · 2023
controlled trialstaVNS[Intestinal flora and neurological disorders]
Tang et al. · Sheng wu gong cheng xue bao = Chinese journal of biotechnology · 2021
controlled trialstaVNSReview of the treatment options for epilepsy in tuberous sclerosis complex: towards precision medicine
Schubert-Bast et al. · Therapeutic advances in neurological disorders · 2021
narrative reviewstaVNSModulatory effects of α7 nAChRs on the immune system and its relevance for CNS disorders
Kalkman et al. · Cellular and molecular life sciences : CMLS · 2016
narrative reviewstaVNSVagus nerve stimulation (VNS) is effective in treating catastrophic 1 epilepsy in very young children
Zamponi et al. · Neurosurgical review · 2008
narrative reviewsiVNSVagal nerve stimulation effects on cerebellar tremor in multiple sclerosis
Marrosu et al. · Neurology · 2005
case reportstaVNS
Registered trials — results pending
2 registered protocols with no published results yet. Listed for context; not counted in the evidence total.
Effect of non-invasive transcutaneous auricular vagus nerve stimulation (taVNS) on non-motor symptoms in multiple sclerosis: study protocol for a randomised, controlled trial
Herr et al. · 2025 · protocol
Effect of non-invasive transcutaneous auricular vagus nerve stimulation on cerebral motor excitability-Study protocol for a randomized, sham controlled trial
Herr et al. · 2023 · protocol