Real-World Effectiveness of Sotrovimab in Patients Infected With SARS-CoV-2 Omicron Subvariant BA.2 in Western Sydney, Australia
Kalo, Eric, Basyouni, Ziad, Meyerowitz Katz, Gideon, Karkvandi, Vahid, Watson, Leanne, Crowther, Helen, Read, Scott, O'Sullivan, Matthew N.V., Ellis, Jasmin, Medlin, Joanne, and Ahlenstiel, Golo (2025) Real-World Effectiveness of Sotrovimab in Patients Infected With SARS-CoV-2 Omicron Subvariant BA.2 in Western Sydney, Australia. Journal of Medical Virology, 97 (2). e70235.
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Abstract
Laboratory-based findings suggest that Sotrovimab is significantly less effective against emerging CARS-CoV-2 variants, however, clinical data is lacking. Here we examined the effectiveness of sotrovimab, in preventing emergency department (ED) presentation and subsequent hospitalization in high-risk subgroups of patients during the SARS-CoV-2 Delta and Omicron waves in Western Sydney, Australia (n = 515). Risk for ED attendance was comparable in Omicron patients, whether BA.1 or BA.2, compared to Delta patients (hazard ratio of 0.97 [0.36–2.64]). These findings highlight the need for caution when using in vitro findings to drive clinical practice, especially when the consequence is to withhold potentially lifesaving treatment.