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COVID-19's hidden impact on blood clot recovery revealed

NCT ID NCT04465656

Knowledge-focused Sponsor: Hospital St. Joseph, Marseille, France 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 study tracked 88 adults diagnosed with pulmonary embolism (a serious blood clot in the lungs) during April 2020, the peak of the COVID-19 pandemic in France. Researchers compared complications like recurrence of clots, lung scarring, and death over 6 to 12 months between patients who had COVID-19 and those who did not. The goal was to understand how the virus affects recovery, using serology tests to confirm past infection.

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 study could clarify how COVID-19 affects recovery from pulmonary embolism, guiding future treatment.
What could go wrong
This is an observational registry with only 88 participants, so findings may not apply broadly. It does not test a new 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

88 people

The number who actually took part.

Started

Jul 2020

Finished

Sep 2022

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

Patient diagnosed and / or hospitalized for PE in April 2020 (the COVID-19 pandemic peak)

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: * Aged ≥ 18 years, * Diagnosed for pulmonary embolism between April 1st and April 30th, 2020; (treated by ambulatory care or hospitalized), * Having given free and informed written consent, * Being affiliated with or benefiting from a social security scheme. Exclusion Criteria: * Subject to a measure for the protection of justice.

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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

  • Hôpital Saint Joseph Marseille

    Marseille, France

More trials for these conditions

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