Can a simple blood test predict which COVID patients will get worse?

NCT ID NCT04341792

Completed Knowledge-focused Sponsor: University Hospital, Lille Source: ClinicalTrials.gov ↗

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This completed study from France enrolled 373 people who came to the emergency room with suspected COVID-19. Researchers checked routine blood markers to see if any could predict which patients would later get worse and need intensive care. The goal was to find simple, low-risk tests to help hospitals manage resources during the pandemic.

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 quickly identify which COVID-19 patients are likely to worsen, allowing better use of hospital resources.
What could go wrong: This is an observational study, not a treatment trial. It only looks for patterns in existing data, so it cannot prove that any marker directly causes or prevents worsening.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Get updates

Get notified about this study

Sign up to get updates when this study changes or when new studies for CORONAVIRUS are added.

Our safety recommendation!

By submitting, you agree to our Terms of use

Conditions

The condition(s) this trial relates to.

Coronavinae infectious disease COVID-19 viral infectious disease

As listed by the trial registrant

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

CORONAVIRUS COVID-19 INFECTION VIRAL

Contacts and locations

Show contact details

Locations

Hôpital Roger Salengro, CHU Lille

Lille, 59037, France

More trials for these conditions

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