Scientists dive deep into Body's battle with COVID-19 and flu

NCT ID NCT05557539

Completed Knowledge-focused Sponsor: Cliniques universitaires Saint-Luc- Université Catholique de Louvain Source: ClinicalTrials.gov ↗

First seen Jun 26, 2026 · Last updated Jun 26, 2026

Summary

This completed study collected blood, urine, and nasal swab samples from 249 adults—some with COVID-19, some with the flu, and healthy controls—at two time points. Researchers used a systems biology approach to analyze the data, aiming to understand why people respond differently to these infections. The goal is to improve personalized care for future patients.

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 research could help doctors better predict and personalize treatment for patients with COVID-19 or flu based on their unique biological responses.
What could go wrong: This is an observational study that only collected samples and analyzed data—it does not test any treatment. The findings may not lead to immediate clinical changes.

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

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Conditions

The condition(s) this trial relates to.

COVID-19 influenza

As listed by the trial registrant

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

INFLUENZA VIRAL INFECTIONS SARS-COV-2 INFECTION

Contacts and locations

Locations

Cliniques Universitaires Saint-Luc

Brussels, 1200, Belgium

More trials for these conditions

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