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New study compares PET and CT scans to improve stroke imaging

NCT ID NCT04571177

Knowledge-focused Sponsor: University of Alberta 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 This study
Running, but no longer taking on new participants.
Completed
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study looks at 20 adults who had a stroke within the past week. Each person will get both a CT scan and a PET scan of the brain to see which method better shows blood flow and metabolism. The goal is to find the best way to image stroke damage, not to test a new treatment.

What this could mean

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

What this could lead to
If successful, this could help doctors choose the best imaging method to guide stroke treatment.
What could go wrong
This is a very small, early study with only 20 participants, so results may not apply to all stroke patients. It is not testing a treatment.

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.

Participants

About 20 people

The number the study aims to enrol. It can still change while the study runs.

Started

Feb 2016

Expected to finish

Dec 2028

An estimate. End dates often move.

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.

Who is studied

Patients who are older than 18 years of age diagnosed with an acute supratentorial ischemic stroke within 48 hrs of onset will be enrolled into the study. Both male and female patients will be enrolled. We want diversity among participants in order to gain insightful information about acute supratentorial ischemic stroke as possible. A broad range in age, along with enrolling both male and female participants will allow greater diversity.

Ages

18 years and older

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: * Age: \>18 yo * Gender: male or female * Acute (within 7 days from symptom onset) Supratentorial Ischemic Stroke Exclusion Criteria: * 1\) Planned surgical intervention * 2\) Severely abnormal blood glucose level (will be excluded from FDG PET imaging) * 3\) Unable to undergo CTP or PET imaging (i.e. claustrophobia) * 4\) Pregnancy

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Conditions

The condition(s) this trial relates to.

ischemic stroke stroke disorder

As listed by the trial registrant

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

Acute ischemic stroke

Contacts and locations

Locations

  • University of Alberta

    Edmonton, Alberta, T6G2B7, Canada

More trials for these conditions

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