T-Cell overreaction may worsen COVID-19, small study hints
NCT ID NCT04410432
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looked at 39 hospitalized COVID-19 patients to see if a strong T-cell immune response is linked to worse symptoms. Researchers measured specific immune cells and chemicals in the blood. The goal was to understand why some patients get much sicker, not to test a treatment.
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Study facts
What this study's own registry entry says, in plain language.
- Participants
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39 people
The number who actually took part.
- Started
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Sep 2020
- Finished
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Jan 2021
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
Patients hospitalized for SARS-Cov-2 infection
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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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 Hide 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: * Person having given his or her non-opposition * Patient hospitalized with an SARS-Cov2 infection proven by virological sampling (nasopharyngeal or sputum PCR) less than 8 days old. Exclusion Criteria: * Person subject to a legal protection measure (curatorship, guardianship) * Person subject to a safeguard measure of justice * Pregnant, parturient or breastfeeding woman * Major incapable or incapable of giving consent * Minor
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Chu Dijon Bourogne
Dijon, 21000, France
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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