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Pharmacokinetics of anti-SARS-CoV-2 monoclonal antibody SA55 injection in healthy participants

Zhou, Y.; MENG, X.; Li, J.; Wang, J.; Zeng, G.; Cao, Y. R.; Hu, C.; Jin, R.

2025-02-24 infectious diseases
10.1101/2025.02.22.25322730 medRxiv
Show abstract

To explore novel treatment/prevention of COVID-19, a novel broad-spectrum neutralizing antibody injection, anti-SARS-CoV-2 antibody SA55 Injection (SA55 injection) was developed. Pharmacokinetics (PK) characteristics of SA55 injection were evaluated in a randomized, controlled, double-blind phase {square} trial based on healthy participants aged 18-65 years. PK parameters (AUC0-{infty}, AUC0-t, and Cmax) were assessed using one-way ANOVA and the Power model. Results demonstrated that SA55 injection with a Tmax of 12.6 days and a half-life of 103 days. In conclusion, the SA55 injection demonstrates potential for use in the prevention of COVID-19 infection.

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