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Can we predict who gets severe COVID? luxembourg study seeks answers

NCT ID NCT04380987

Knowledge-focused Sponsor: Luxembourg Institute of Health 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 26, 2026

Summary

This completed study followed 1,366 adults in Luxembourg who tested positive for COVID-19. Researchers tracked symptoms and took blood, swab, and stool samples to identify factors linked to severe disease. The goal was to better predict patient outcomes and improve care.

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 help doctors predict which COVID-19 patients are at risk of severe illness, enabling earlier and more targeted care.
What could go wrong
This is an observational study, not a treatment trial, so it cannot directly improve outcomes. The findings may not apply to other populations or virus variants.

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

1,366 people

The number who actually took part.

Started

May 2020

Finished

Sep 2024

Lead sponsor

A government agency

The lead sponsor is a government body.

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 (≥18 years old) patients with confirmed SARS-CoV-2 infection, hospitalized or at home.

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: * SARS-CoV-2 infection as determined by PCR, performed by one of the certified laboratories in Luxembourg * Signed informed consent form * Age ≥18 years old * Hospitalized or at home Exclusion Criteria: * Patients not understanding French or German * Patients already included in an interventional study on Covid-19 (Discovery or other)

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Conditions

The condition(s) this trial relates to.

COVID-19

As listed by the trial registrant

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

COVID19

Contacts and locations

Locations

  • Luxembourg Institute of Health

    Luxembourg, Luxembourg

More trials for these conditions

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