ER study tests smarter way to diagnose dangerous blood clots
NCT ID NCT07313501
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study looks at whether two simple checklists (PERC and YEARS) can safely reduce the number of CT scans needed to diagnose pulmonary embolism (a blood clot in the lungs). Researchers will review the records of 500 adults who came to the emergency room with suspected clots. If the checklists work, they could speed up diagnosis and cut down on unnecessary imaging.
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 show that using these simple checklists can safely reduce the number of CT scans and waiting times for patients with suspected pulmonary embolism.
- What could go wrong
- This is a small, retrospective study at one hospital, so results may not apply everywhere. The checklists might miss some cases of pulmonary embolism.
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
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About 500 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Feb 2025
- Expected to finish
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Feb 2026
An estimate. End dates often move.
- Lead sponsor
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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
\- Adult patient (≥18 years) admitted to the adult emergency department of the Strasbourg University Hospital over a 6-month period (January to June 2024), for whom a D-dimer test and chest imaging (thoracic CT angiography or ventilation/perfusion scintigraphy) were performed
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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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 Hide 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: * Adult patient (≥18 years) * Patient admitted to the adult emergency department of the Strasbourg University Hospital over a 6-month period (January to June 2024), for whom a D-dimer test and chest imaging (thoracic CT angiography or ventilation/perfusion scintigraphy) were performed Exclusion Criteria: \- No D-dimer test or test performed for another indication, no chest imaging (CT angiography or scintigraphy), long-term anticoagulant treatment.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Service d'Urgences Médico-Chirurgicales Adules - CHU de Strasbourg - France
RECRUITINGStrasbourg, 67091, France
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