Vir Biotechnology and GSK Provide Update on NIH-Sponsored ACTIV-3 Trial Evaluating VIR-7831 in Hospitalized Adults with COVID-19 - Seite 2

VIR-7831 is an investigational, dual-action monoclonal antibody that has been shown in preclinical trials to both block viral entry into healthy cells and clear infected cells, which may protect patients from disease progression.

The antibody has also shown the ability to neutralize the SARS-CoV-2 live virus by binding to a highly conserved epitope of the spike protein, which may make it more difficult for resistance to develop. So far, the variants of concern, including the UK, South African and Brazilian variants, do not overlap with the VIR-7831 targeted epitope of the virus, and, therefore, VIR and GSK believe that it should maintain full activity against these strains.

In addition to the ACTIV-3 trial, VIR-7831 is also being evaluated in the outpatient setting in the following clinical trials:

• COMET-ICE (COVID-19 Monoclonal antibody Efficacy Trial – Intent to Care Early): A Phase 3 trial to evaluate VIR-7831 for the early treatment of COVID-19 in adults at high risk of hospitalization or death.
• BLAZE-4 (sponsored by Eli Lilly and Company): A Phase 2 trial designed to assess the safety and efficacy of Eli Lilly’s bamlanivimab (LY-CoV555) alone and bamlanivimab with other neutralizing antibodies, including VIR-7831, versus placebo in low-risk adults with mild to moderate COVID-19. 

Additionally, VIR-7831, along with VIR-7832, will be evaluated in the Phase 1b/2a National Health Service-supported AGILE trial in adults with mild to moderate COVID-19. VIR-7832 is the second monoclonal antibody from the Vir-GSK collaboration to be investigated as a potential COVID-19 treatment.

VIR-7831 and VIR-7832 are investigational compounds, not approved by the U.S. Food and Drug Administration or any other regulatory authority. 

About VIR-7831 / GSK4182136
VIR-7831 is an investigational dual-action SARS-CoV-2 monoclonal antibody. Preclinical data suggest it has the potential to both block viral entry into healthy cells and clear infected cells. The antibody binds to an epitope on SARS-CoV-2 that is shared with SARS-CoV-1 (the virus that causes SARS), indicating that the epitope is highly conserved, which may make it more difficult for resistance to develop. VIR-7831, which incorporates Xencor’s Xtend technology, also has been designed to achieve high concentration in the lungs to ensure optimal penetration into airway tissues affected by SARS-CoV-2 and to have an extended half-life.