Clinical trial Recruiting at 1 site Interventional Ages 18 and up

Testing a device to stimulate the vagus nerve after a brain hemorrhage

Official title: Investigating the Tolerability and Feasibility of Transcutaneous Vagus Nerve Stimulation Following Aneurysmal Subarachnoid Haemorrhage

Run by Sheffield Teaching Hospitals NHS Foundation Trust · NCT06374693 · Data updated 2026-11-12

This study is testing whether a device that stimulates the vagus nerve can help people recover better after a brain hemorrhage caused by a burst aneurysm.

Quick facts

Study typeInterventional
Ages18 Years and up
SexAll
Enrollment30 (estimated)
SponsorSheffield Teaching Hospitals NHS Foundation Trust
Academic / other
Locations1 site (Sheffield, South Yorkshire)
StatusRecruiting
StartedApril 17, 2024
Main results expectedMay 30, 2026
Study endsJuly 31, 2026
Registry record updatedMarch 20, 2026
Trial IDNCT06374693 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults over 18 who have been admitted to the neurosurgery department with a confirmed aneurysmal subarachnoid hemorrhage and have undergone aneurysm securing within the last five days.

Probably not a fit

Patients with prior vagus nerve stimulation treatment or certain cardiac conditions may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This pilot study investigates the tolerability and feasibility of transcutaneous vagus nerve stimulation (tVNS) in patients who have recently experienced a subarachnoid hemorrhage from a cerebral aneurysm rupture. Participants will be randomly assigned to receive either active tVNS or a sham treatment for 45 minutes twice daily over five days following their aneurysm securing procedure. The study aims to evaluate the success criteria for tolerability and feasibility while also exploring potential effects on clinical outcomes and mechanisms. This research is significant as it seeks to address complications associated with subarachnoid hemorrhage, which can lead to increased disability and mortality.

Why it matters

Potential benefit: If successful, this approach could reduce complications and improve recovery outcomes for patients following a subarachnoid hemorrhage.

How similar studies have gone: While non-invasive vagus nerve stimulation has been explored for headache relief, this specific application in the acute phase following subarachnoid hemorrhage is novel and has not been extensively tested.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age \>18
* Admitted to STH (Sheffield Teaching Hospital) neurosurgery department
* Confirmed aneurysmal SAH on vascular imaging
* Within 5 days of 'Securing' aneurysm (i.e., successfully coiled or surgically following rupture)

Exclusion Criteria:

* Current or prior use of a vagus nerve stimulation
* Symptomatic bradycardia or PPM insertion
* Complete heart block
* Implantation of any other electrical stimulator (e.g. DBS)

Where it's running

  • University of Sheffield
    Sheffield, South Yorkshire, United Kingdom
    Recruiting

Study contacts

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.