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New scan could spot dangerous lung clots faster

NCT ID NCT04179539

Diagnosis Sponsor: University Hospital, Brest 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study tested whether a special PET/CT scan (V/Q PET/CT) can accurately diagnose pulmonary embolism (a blood clot in the lungs) compared to the standard CT scan. About 100 adults with suspected first-time clots took part. The goal was to see how sensitive and specific the new scan is, which could lead to a safer, radiation-reducing diagnostic option.

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

100 people

The number who actually took part.

Started

Dec 2019

Finished

Nov 2024

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 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: * Patient with suspected first episode of acute PE, * Age ≥ 18 years . * Insured patient. Exclusion Criteria: * Patients with a clinically suspected massive PE. * Contraindication to contrast media (including renal insufficiency with creatinine clearance \< 30 ml/min). * Inability to perform CTPA and V/Q PET/CT within 24 hours. * History of deep vein thrombosis or PE * Unable/unwilling to give informed consent. * Pregnancy / breast-feeding. * Patient under guardianship or curatorship

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Conditions

The condition(s) this trial relates to.

pulmonary embolism

As listed by the trial registrant

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

Pulmonary embolism

Contacts and locations

Locations

  • CHRU de BREST

    Brest, France

More trials for these conditions

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