Clinical trial Recruiting at 5 sites Observational Ages 18 and up

Understanding the immune response in COVID-19 patients in intensive care

Official title: Study of the Kinetics of the Immune Response During the Intensive Care Unit Stay in Adult Patients Infected With SARS-CoV-2: Multicentric Non Interventional Study

Run by Hospices Civils de Lyon · NCT04392401 · Data updated 2026-11-12

This study looks at how the immune system reacts in adults with severe COVID-19 who are in intensive care to help improve future treatments.

More SARS-CoV-2 trials

Quick facts

Study typeObservational
Ages18 Years and up
SexAll
Enrollment200 (estimated)
SponsorHospices Civils de Lyon
Academic / other
Locations8 sites (Bron and 7 other locations)
StatusRecruiting
StartedMay 11, 2020
Main results expectedApril 2026
Study endsApril 2026
Registry record updatedDecember 17, 2025
Trial IDNCT04392401 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates include adults aged 18 and over who are hospitalized in intensive care for SARS-CoV-2 pneumonia.

Probably not a fit

Patients who are pregnant, lactating, or under legal protection will not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study aims to analyze the immune response kinetics in adult patients hospitalized in intensive care due to SARS-CoV-2 infection. By collecting blood samples within the first 24 hours of ICU admission, researchers will create a biocollection to better understand the inflammatory response and potential immunosuppression associated with COVID-19. The study seeks to fill the knowledge gap regarding the immune dynamics of critically ill COVID-19 patients, which could inform future treatment strategies.

Why it matters

Potential benefit: If successful, this study could lead to improved understanding of immune responses in COVID-19 patients, potentially guiding better treatment protocols.

How similar studies have gone: While there have been studies on COVID-19 immune responses, this specific approach of detailed kinetic analysis in ICU settings is novel and has not been extensively tested.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Man or woman aged 18 or over,
2. Hospitalization in intensive care for Sars-Cov-2 pneumopathy,
3. First hospitalization in intensive care unit,
4. Positive diagnosis of SARS-CoV2 infection carried out by PCR or by another approved method in at least one respiratory sample,
5. Sampling in the first 24 hours after admission to intensive care unit (D0 / D1) feasible,
6. Patient or next of kin who has been informed of the terms of the study and has not objected to participating.

Exclusion Criteria:

1. Pregnant or lactating woman,
2. Person placed under legal protection,

Where it's running

  • Hôpital Pierre Wertheimer
    Bron, France
    Recruiting
  • Hôpital Edouard Herriot
    Lyon, France
    Recruiting
  • Hôpital Edouard Herriot
    Lyon, France
    Recruiting
  • Hôpial de la Croix Rousse
    Lyon, France
    Recruiting
  • Hôpital Lyon Sud
    Pierre-Bénite, France
    Recruiting
  • Hôpital Gabriel Montpied
    Clermont-Ferrand, France
    Not yet recruiting
Show 2 more locations
  • Centre hospitalier universitaire de Grenoble Alpes
    Grenoble, France
    Not yet recruiting
  • CH de St Etienne
    Saint-Etienne, France
    Not yet recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.