Could a magnet on the head ease voice spasms?

NCT ID NCT05095740

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

Laryngeal dystonia causes the vocal folds to spasm, leading to a strained or breathy voice. This study tests whether a non-invasive brain stimulation technique called rTMS can calm the overactive brain signals that cause these spasms. Twenty-five adults with laryngeal dystonia will receive either real or sham rTMS, and researchers will measure changes in voice quality and brain activity. The goal is to see if this approach could offer a new, less invasive alternative to Botox injections.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance

repetitive transcranial magnetic stimulation (rTMS)

What this could lead to

If it works, this could point toward a non-invasive treatment option for laryngeal dystonia that reduces voice symptoms without the need for repeated Botox injections.

What could go wrong

This is a very early, small proof-of-concept study with only 25 participants. It tests a single session of rTMS, so any benefits may be short-lived or not work for everyone.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Conditions

The condition(s) this trial relates to.

dystonic disorder focal dystonia spasmodic dystonia

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • Teresa J Kimberley

    RECRUITING

    Boston, Massachusetts, 02129, United States

    Contact

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact