Severe SARS-CoV-2 infections are frequently associated with the acute respiratory distress syndrome (ARDS), which leads to a mortality of 30-40%. An altered type I interferon (IFN) response has been demonstrated in patients with severe COVID-19, together with a high viral load. The aim of the current work is, in a large cohort of patients with severe COVID-19 admitted in the ICU, to determine the prevalence of patients with positive anti-IFN antibodies and to determine their outcome, as compared to patients having negative anti-IFN antibodies.
Severe SARS-CoV-2 infections are frequently associated with the acute respiratory distress syndrome (ARDS), which leads to a mortality of 30-40%. An altered type I interferon (IFN) response has been demonstrated in patients with severe COVID-19, together with a high viral load. A recent study revealed that 10% of patients admitted in the intensive care unit (ICU) for severe COVID-19 had positive type I anti-IFN antibodies. Such finding has potentially important therapeutic implications, as patients having positive anti-IFN antibodies could benefit from targeted interventions, including plasmapheresis. The aim of the current work is, in a large cohort of patients with severe COVID-19 admitted in the ICU, to determine the prevalence of patients with positive anti-IFN antibodies and to determine their outcome, as compared to patients having negative anti-IFN antibodies.
Study Type
OBSERVATIONAL
Enrollment
1,022
Assistance Publique Hôpitaux de Paris - CHU HENRI MONDOR
Créteil, France
day-28 mortality
comparaison of day-28 mortality in patients having positive versus negative type I anti-IFN antibodies
Time frame: at day-28 of intensive care unit (ICU) admission
rate of positivity of type I anti-IFN antibodies
positivity of type I anti-IFN antibodies measured on a serum sample obtained at any time during ICU stay
Time frame: 3 months of ICU admission
Factors associated with type I anti-IFN antibody positivity
Factors associated with type I anti-IFN antibody positivity available upon hospital admission, identified using uni- and multiple logistic regression analyses
Time frame: 24 hours of ICU admission
hospital mortality
Comparaison of hospital mortality of patients having positive versus negative type I anti-IFN antibodies
Time frame: at day 90.
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