Understanding the immune response in COVID-19 patients

Characterization of the IFN-I Response in Subjects Who Experienced Severe or Mild Forms of COVID-19

Not applicable Interventional Hospices Civils de Lyon · NCT06703034

This study is trying to see how the immune response works in people with different severities of COVID-19 and if certain genetic factors affect how well it fights the virus.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment100 (estimated)
Ages18 Years and up
SexAll
SponsorHospices Civils de Lyon Academic / other
Drugs / interventionsrituximab, chemotherapy
Locations1 site (Lyon)
Trial IDNCT06703034 on ClinicalTrials.gov

What this trial studies

This study investigates the type I interferon (IFN-I) response in individuals who have experienced varying severities of COVID-19. It focuses on how genetic mutations and autoantibodies may affect the effectiveness of the IFN-I pathway, which is crucial for the immune system's defense against viral infections. Participants will undergo biological sampling to assess their immune responses and identify potential defects in the IFN-I pathway. The findings could provide insights into the prognosis and treatment of COVID-19.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18 and older who have previously participated in specific COVID-19 related studies and weigh at least 50 kg.

Not a fit: Patients currently experiencing infection symptoms or those with significant immunosuppression will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved understanding and management of COVID-19, particularly for patients with severe forms of the disease.

How similar studies have performed: Other studies have identified defects in the IFN-I response in severe COVID-19 cases, suggesting that this approach has been explored with some success.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Participant aged at least 18 years
* Previously included in the COVID-ser or NOSO-COR IMMUNO study as well as in the RNIPH study (Research Not Involving Human Persons) named MIR-COVID
* Weight of 50 kg or more

Exclusion Criteria:

* Current infection symptoms
* Immunosuppression defined by: bone marrow transplant within the past 24 months, chemotherapy within the past 6 months, HIV infection with CD4 \<200/mm³ or \<15%, corticosteroid therapy for more than 2 weeks with a daily dose over 10 mg of prednisolone equivalent, immunosuppressive treatment administered within the previous 3 months (6 months for rituximab), aplasia, asplenia, or splenectomy
* Pregnant, parturient, or breastfeeding woman
* Person deprived of liberty by judicial or administrative decision
* Person receiving psychiatric care
* Person admitted to a health or social institution for purposes other than research
* Person under guardianship or curators
* Person not affiliated with a social security scheme or similar coverage
* Patient participating in another ongoing interventional research study at inclusion"

Where this trial is running

Lyon

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions COVID-19interferondisease severityprognosisImmune Functional Assays
Last reviewed 2026-06-15 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.