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Spinal zap fails to prove brain benefit in rare stroke complication

NCT ID NCT05150002

Knowledge-focused Sponsor: Insel Gruppe AG, University Hospital Bern Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early This study
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

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

Summary

This study looked at whether electrical stimulation of the spinal cord could help widen narrowed brain arteries after a type of stroke called subarachnoid hemorrhage. Only one person was enrolled before the study was stopped early. The goal was to measure changes in blood flow, but no conclusions can be drawn.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

1 person

The number who actually took part.

Started

Jun 2023

Finished

Jan 2026

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 to 75 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Fisher 3 grade subarachnoid hemorrhage at presentation * Secured aneurysm by clipping or coiling * Is 18-75 years of age at the time of enrollment * Cerebral vasospasm: * Cerebral angiography o Narrowing of vessel lumen \> 66% * Transcranial Doppler ultrasound * Mean flow velocity \> 150 cm/s or * Lindegaard Index \> 3 or * increase \> 50 cm/s within 24 hours * Intracranial CT angiography o Narrowing of vessel lumen \> 66% * Intracranial CT perfusion o Time To Drain (TTD) \> 4.7 seconds * Is willing and capable of providing informed consent or existence of the presumed will of the patient by a relative or a legal representative * Written confirmation by a study independent physician to guarantee patient interest * Is willing and capable of complying with the study related requirements, procedures, and visits * No findings on spinal imaging preventing SCS lead implantation * Negative pregnancy test * No breast feeding Exclusion Criteria: * Untreated ruptured aneurysm * Cerebral infarction in the territory of the spastic arteries or massive disseminated infarction * Signs of cerebral herniation * Uncontrollable intracranial pressure * Infection * Coagulation disorder * Is participating in another interventional trial * Circulatory instability * Severe congestive heart failure * Patients with an elevated risk of bleeding * Known allergy to implanted materials (Silicon, Titanium)

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Conditions

The condition(s) this trial relates to.

intracranial vasospasm subarachnoid hemorrhage

As listed by the trial registrant

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

Cerebral vasospasm Subarachnoid hemorrhage

Contacts and locations

Locations

  • Dep. of Neurosurgery, Bern University Hospital

    Bern, 3000, Switzerland

More trials for these conditions

Other studies related to the condition(s) this trial covers.