Sotrovimab (VIR 7831) is a human IgG1κ pan-sarbecovirus monoclonal antibody (mAb), neutralizes SARS-CoV-2, SARS-CoV-1, and multiple other sarbecoviruses. Sotrovimab is developed based on S309, exhibits a long half-life and great bioavailability in the respiratory mucosa. Sotrovimab could result in immune-mediated viral clearance and prevent progression of Covid-19 early in the course of disease.

Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to 24 months.
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20°C. Generally, these will be useable for up to one month. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.