Vagus Nerve Stimulation May Soon Be an Approved Treatment for Autoimmune Diseases

By Wayne Persky

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Autoimmune diseases such as IBDs, rheumatoid arthritis, and multiple sclerosis have long been treated with powerful immune system-suppressing drugs. These medications, while effective, can be expensive, and come with significant side effects, including an increased risk of infections. A possible groundbreaking approach, using vagus nerve stimulation (VNS) may be a promising alternative (Hanilton, 2025, February 3).1

The vagus nerve runs from the brainstem through the body, connecting to major organs like the heart, lungs, liver, gut, and spleen. This nerve is a key component of the autonomic nervous system, helping to regulate inflammation and immune responses. Vagus nerve stimulation involves the use of implanted devices that deliver tiny electrical pulses to the vagus nerve.

The idea that the vagus nerve could control inflammation was discovered over 20 years ago when researchers observed that an experimental drug given to rats not only prevented brain inflammation but also reduced systemic inflammation. Further investigation revealed that the vagus nerve acted as a brake system for inflammation, sending signals that instructed immune cells to reduce cytokine production, thereby preventing excessive immune responses.

SetPoint Medical, a company specializing in bioelectronic medicine, has developed an implantable VNS device that is currently under review by the U.S. Food and Drug Administration (FDA). The agency is expected to make a decision by late 2025. A pivotal study involving 242 rheumatoid arthritis patients demonstrated that after 12 weeks of vagus nerve stimulation:

• Symptoms were significantly reduced
• Disease progression slowed
• Joint damage decreased
• Levels of inflammatory proteins dropped

These promising results suggest that vagus nerve stimulation could provide a drug-free alternative for managing autoimmune diseases.

This treatment would provide many advantages over traditional treatments.

• Unlike immunosuppressive drugs, which can cost tens of thousands of dollars per year and increase infection risks, VNS could provide a cost-effective and safer alternative.
  
• VNS directly influences the body's natural anti-inflammatory reflex, reducing the need for systemic drug exposure.
  
• Vagus nerve stimulators are already FDA-approved for conditions such as epilepsy and depression, making their adaptation to autoimmune diseases a logical next step.

SetPoint Medical is now assessing VNS effectiveness in:

• Multiple sclerosis
  
• Crohn’s disease

VNS provides a way to utilize the body’s own electrical signals to heal itself.

If approved, this technology could revolutionize how autoimmune diseases are treated, offering a non-pharmacological option that harnesses the body's own regulatory systems.

Much of the modern research into VNS and inflammation is being conducted at the Feinstein Institutes for Medical Research. Scientists are mapping the vagus nerve’s pathways and even converting its electrical activity into real-time audio signals, providing unprecedented insights into its role in immune regulation.​

While vagus nerve stimulation is not yet a mainstream treatment, its potential is undeniable. With ongoing research and FDA approval on the horizon, VNS may soon provide a revolutionary step in the management of autoimmune diseases — offering patients an innovative, non-drug-based method to control chronic inflammation and improve their quality of life.

Reference

1. Hanilton, J. (2025, February 3). Vagus nerve stimulation may tame autoimmune diseases. NPR, Retrieved from https://www.npr.org/sections/shots-health-news/2025/02/03/nx-s1-5272748/vagus-nerve-stimulation-may-tame-autoimmune-diseases