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New goggles could help ER doctors detect strokes faster in dizzy patients

NCT ID NCT05176015

Diagnosis Sponsor: CHU de Quebec-Universite Laval 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 This study
The trial has finished. Results may not be published yet.
Stopped early
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This status has not been confirmed recently, so it may be out of date.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 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This pilot study tested whether special magnifying goggles (Frenzel lenses) and a step-by-step diagnostic algorithm help emergency doctors better detect nystagmus—a telltale eye movement—in patients with sudden vertigo. The goal is to improve diagnosis of stroke versus benign inner ear conditions. 120 adults with new-onset vertigo were enrolled. The study focused on feasibility and detection rates, not on treatment outcomes.

What this could mean

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

Active substance
Frenzel Lens (magnifying goggles) and a diagnostic algorithm
What this could lead to
If successful, this approach could help emergency doctors quickly tell whether vertigo is from a harmless inner ear problem or a serious stroke, reducing unnecessary scans and delays.
What could go wrong
This is a small pilot study with only 120 participants, so results may not apply to all patients. The tools may not improve detection enough to change current practice.

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

120 people

The number who actually took part.

Started

Jan 2022

Finished

Feb 2025

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 100 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: * New episode of acute vertigo/dizziness/imbalance occuring during the 28 last days * Must be able to consent. Exclusion Criteria: * No traumatic context before symptoms onset * No intoxication context * Glycemia ≤ 3,0 mmol/L * Only one participation is permitted * Not able to speak adequately in French or English. * Reachable for 3 month follow-up

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Conditions

The condition(s) this trial relates to.

cardiovascular disorder pathologic nystagmus stroke disorder

As listed by the trial registrant

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

Nystagmus, acquired Stroke, acute

Contacts and locations

Locations

  • Centre Hospitalier d'Amqui

    Amqui, Quebec, G5J 2K5, Canada

  • Centre Hospitalier de Matane

    Matane, Quebec, G4W 2W5, Canada

  • Centre Hospitalier de Montmagny

    Saint Thomas de Montmagny, Quebec, G5V 3R8, Canada

  • Hopital Notre-Dame-de-Fatima

    Ste. Anne de la Pocatière, Quebec, G0R 1Z0, Canada

  • Hopital St-Georges

    Saint-Georges, Quebec, G5Y4T8, Canada

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