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Convalescent plasma therapy for B-cell-depleted patients with protracted COVID-19.


ABSTRACT: Anti-CD20 monoclonal antibodies are widely used for the treatment of hematological malignancies or autoimmune disease but may be responsible for a secondary humoral deficiency. In the context of COVID-19 infection, this may prevent the elicitation of a specific SARS-CoV-2 antibody response. We report a series of 17 consecutive patients with profound B-cell lymphopenia and prolonged COVID-19 symptoms, negative immunoglobulin G (IgG)-IgM SARS-CoV-2 serology, and positive RNAemia measured by digital polymerase chain reaction who were treated with 4 units of COVID-19 convalescent plasma. Within 48 hours of transfusion, all but 1 patient experienced an improvement of clinical symptoms. The inflammatory syndrome abated within a week. Only 1 patient who needed mechanical ventilation for severe COVID-19 disease died of bacterial pneumonia. SARS-CoV-2 RNAemia decreased to below the sensitivity threshold in all 9 evaluated patients. In 3 patients, virus-specific T-cell responses were analyzed using T-cell enzyme-linked immunospot assay before convalescent plasma transfusion. All showed a maintained SARS-CoV-2 T-cell response and poor cross-response to other coronaviruses. No adverse event was reported. Convalescent plasma with anti-SARS-CoV-2 antibodies appears to be a very promising approach in the context of protracted COVID-19 symptoms in patients unable to mount a specific humoral response to SARS-CoV-2.

SUBMITTER: Hueso T 

PROVIDER: S-EPMC7702482 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature

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Convalescent plasma therapy for B-cell-depleted patients with protracted COVID-19.

Hueso Thomas T   Pouderoux Cécile C   Péré Hélène H   Beaumont Anne-Lise AL   Raillon Laure-Anne LA   Ader Florence F   Chatenoud Lucienne L   Eshagh Déborah D   Szwebel Tali-Anne TA   Martinot Martin M   Camou Fabrice F   Crickx Etienne E   Michel Marc M   Mahevas Matthieu M   Boutboul David D   Azoulay Elie E   Joseph Adrien A   Hermine Olivier O   Rouzaud Claire C   Faguer Stanislas S   Petua Philippe P   Pommeret Fanny F   Clerc Sébastien S   Planquette Benjamin B   Merabet Fatiha F   London Jonathan J   Zeller Valérie V   Ghez David D   Veyer David D   Ouedrani Amani A   Gallian Pierre P   Pacanowski Jérôme J   Mékinian Arsène A   Garnier Marc M   Pirenne France F   Tiberghien Pierre P   Lacombe Karine K  

Blood 20201101 20


Anti-CD20 monoclonal antibodies are widely used for the treatment of hematological malignancies or autoimmune disease but may be responsible for a secondary humoral deficiency. In the context of COVID-19 infection, this may prevent the elicitation of a specific SARS-CoV-2 antibody response. We report a series of 17 consecutive patients with profound B-cell lymphopenia and prolonged COVID-19 symptoms, negative immunoglobulin G (IgG)-IgM SARS-CoV-2 serology, and positive RNAemia measured by digita  ...[more]

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