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J Microbiol Immunol Infect . Clinical efficacy and safety of SARS-CoV-2-neutralizing monoclonal antibody in patients with COVID-19: A living systematic review and meta-analysis

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  • J Microbiol Immunol Infect . Clinical efficacy and safety of SARS-CoV-2-neutralizing monoclonal antibody in patients with COVID-19: A living systematic review and meta-analysis

    J Microbiol Immunol Infect


    . 2023 Jul 31;S1684-1182(23)00128-7.
    doi: 10.1016/j.jmii.2023.07.009. Online ahead of print. Clinical efficacy and safety of SARS-CoV-2-neutralizing monoclonal antibody in patients with COVID-19: A living systematic review and meta-analysis

    Su-Yeon Yu 1 , Miyoung Choi 2 , Chelim Cheong 3 , Seungeun Ryoo 4 , Kyungmin Huh 5 , Young Kyung Yoon 6 , Jungwoo Choi 2 , Sun Bean Kim 7



    AffiliationsFree article Abstract

    This study evaluated the efficacy and safety of neutralizing monoclonal antibodies (mAbs) with usual care in patients with coronavirus disease 2019 (COVID-19). Randomized controlled trials comparing the efficacy and safety of neutralizing mAb treatment in patients with COVID-19 were identified using electronic database searches through March 10, 2023. This systematic review was conducted following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Overall, 13 trials (23 articles) involving 25,646 patients were included in this systematic review. Compared with usual care, neutralizing mAbs were associated with significantly reduced all-cause mortality in outpatients with COVID-19 (pooled risk ratios [RR], 0.41; 95% confidence interval (CI), 0.20-0.83; 12 studies), but not in inpatients. In the subgroup analysis, only outpatients infected prior to the emergence of Delta variant or those with mAb-VOC match had significantly reduced mortality, while no significant benefit was observed in patients infected with Delta and post-Delta variants or mAb-VOC mismatch. Moreover, the rate of hospitalization and number of hospital visits had significantly reduced only in outpatients infected prior to the emergence of the Delta variant and those with mAb-VOC match. Our systematic review used majority of the high-certainty evidence. Our study found neutralizing mAbs were beneficial for outpatients infected prior to Delta variant or mAb-VOC match. In the face of the continuous emergence of new COVID-19 variants, additional clinical data are needed to determine whether neutralizing mAb treatment will be effective for the newly emerging variants.

    Keywords: COVID-19; GRADE; Meta-analysis; Neutralizing monoclonal antibody; Systematic review.

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