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    Preclinical safety and efficacy of a therapeutic antibody that targets SARS-CoV-2 at the sotrovimab face but is escaped by Omicron (2023)

    Art
    Zeitschriftenartikel / wissenschaftlicher Beitrag
    Autoren
    Kreye, Jakob
    Reincke, Momsen
    Edelburg, Stefan
    Jeworowski, Lara M.
    Kornau, Hans-Christian
    Trimpert, Jakob (WE 5)
    Hombach, Peter
    Halbe, Sophia
    Nölle, Volker
    Meyer, Martin
    Kattenbach, Stefanie
    Sánchez-Sendin, Elisa
    Schmidt, Marie L.
    Schwarz, Tatjana
    Rose, Ruben
    Krumbholz, Andi
    Merz, Sophie
    Adler, Julia Maria (WE 5)
    Eschke, Kathrin
    Abdelgawad, Azza
    Schmitz, Dietmar
    Sander, Leif Erik
    Janssen, Uwe
    Corman, Victor M.
    Prüss, Harald
    Quelle
    iScience
    Bandzählung: 26
    Heftzählung: 4
    Seiten: Artikel 106323
    ISSN: 2589-0042
    Sprache
    Englisch
    Verweise
    URL (Volltext): https://pubmed.ncbi.nlm.nih.gov/36925720/
    DOI: 10.1016/j.isci.2023.106323
    Pubmed: 36925720
    Kontakt
    Institut für Virologie

    Robert-von-Ostertag-Str. 7-13
    14163 Berlin
    +49 30 838 51833
    virologie@vetmed.fu-berlin.de

    Abstract / Zusammenfassung

    The recurrent emerging of novel viral variants of concern (VOCs) with evasion of preexisting antibody immunity upholds severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) case numbers and maintains a persistent demand for updated therapies. We selected the patient-derived antibody CV38-142 based on its potency and breadth against the VOCs Alpha, Beta, Gamma, and Delta for preclinical development into a therapeutic. CV38-142 showed in vivo efficacy in a Syrian hamster VOC infection model after post-exposure and therapeutic application and revealed a favorable safety profile in a human protein library screen and tissue cross-reactivity study. Although CV38-142 targets the same viral surface as sotrovimab, which maintains activity against Omicron, CV38-142 did not neutralize the Omicron lineages BA.1 and BA.2. These results highlight the contingencies of developing antibody therapeutics in the context of antigenic drift and reinforce the need to develop broadly neutralizing variant-proof antibodies against SARS-CoV-2.