Vagus Nerve Stimulation for Fibromyalgia

(R61VNS Trial)

This trial explores whether stimulating the vagus nerve through the skin can relieve pain and other symptoms in people with fibromyalgia. Fibromyalgia is a chronic condition causing widespread pain and fatigue, and scientists are still investigating its causes. Participants will receive either the actual nerve stimulation treatment, known as Transcutaneous Vagus Nerve Stimulation (tVNS), or a sham version to compare effects. Ideal candidates for this trial have been diagnosed with fibromyalgia for at least three months and regularly experience significant pain. As an unphased trial, this study offers a unique opportunity to contribute to groundbreaking research that could lead to new treatment options for fibromyalgia.

Research has shown that using a device on the skin to stimulate the vagus nerve, known as transcutaneous vagus nerve stimulation (tVNS), is generally safe for people with fibromyalgia. Studies have found that tVNS, a noninvasive treatment, can help reduce pain in those with fibromyalgia. These studies reported no serious side effects. Some minor side effects, such as difficulty swallowing or temporary changes in voice, were noted but did not last long. Overall, tVNS appears to be a promising and safe option for managing pain in fibromyalgia.¹²³⁴⁵

Unlike the standard treatments for fibromyalgia, which typically involve medications like antidepressants, anticonvulsants, and pain relievers, Transcutaneous Vagus Nerve Stimulation (tVNS) offers a non-drug approach. Researchers are excited about tVNS because it uses electrical impulses to stimulate the vagus nerve through the skin, potentially reducing pain and improving mood without the side effects associated with medication. This technique targets the nervous system directly, which may provide relief more efficiently and with fewer side effects than conventional drug therapies. Additionally, its non-invasive nature means it could be a more accessible and safer option for patients.

Research has shown that transcutaneous vagus nerve stimulation (tVNS), a treatment participants in this trial may receive, might help people with fibromyalgia by reducing pain and improving quality of life. Studies have found that tVNS can significantly decrease pain levels in patients and enhance overall well-being and muscle strength. This treatment likely works by calming the nervous system and reducing inflammation, both of which are issues in fibromyalgia. Overall, tVNS appears to be a promising, safe, and effective way to manage fibromyalgia symptoms.⁶⁷⁸⁹¹⁰