Vir Biotechnology Publishes New Research Characterizing Antibody Response to SARS-CoV-2 in the Journal Cell
– Largest-to-date analysis of serum samples from nearly 650 SARS-CoV-2-infected patients –
– High-resolution serology advances understanding of variations in natural antibody response to SARS-CoV-2 and paves the way for future development of vaccines/therapies –
– Manuscript highlights need for the rational design of vaccines and therapies that address the gaps in natural antibody response –
Results of this study, based on blood samples from nearly 650 SARS-CoV-2 infected individuals in
“This study provides new information about the diverse individual antibody response to SARS-CoV-2 infection. The results establish a blueprint that could help guide future serology studies and inform vaccine and therapeutic design strategies,” said
The manuscript also describes the structural characteristics of the interactions of six different neutralizing antibodies targeting the SARS-CoV-2 RBD, including S309. As described in the
“Our high-resolution look at the binding characteristics of the six antibodies highlights nuanced differences that correlate with specific functional activity,” said David Veesler, Ph.D., Associate Professor of Biochemistry at the
Vir, in collaboration with GlaxoSmithKline plc (LSE/NYSE: GSK), is advancing COVID-19 monoclonal antibodies based on the S309 antibody, including VIR-7831 (also known as GSK4182136) and VIR-7832. In August, the companies initiated a Phase 2/3 study, called COMET-ICE (COVID-19 Monoclonal antibody Efficacy Trial - Intent to Care Early), which is evaluating VIR-7831 for the early treatment of COVID-19 in patients at high risk of hospitalization.
The research published in Cell was conducted by Vir’s subsidiary
Key contributors include Dr. Veesler;
“We wish to thank our many collaborators and partners who dedicated substantial resources and attention to ensuring the collection, screening and preparation of thousands of samples in just a few weeks,” said Herbert “Skip” Virgin, M.D., Ph.D., chief scientific officer of Vir. “Their efforts were important to advancing our understanding of how to combat this global health crisis. We are grateful for their collective focus and collaboration on this research, which represents a key step in the fight against COVID-19.”
About VIR-7831 / GSK4182136
VIR-7831 (GSK4182136) is a monoclonal antibody that has shown the ability to neutralize SARS-CoV-2 live virus in vitro. The antibody binds to an epitope on SARS-CoV-2 that is shared with SARS-CoV-1 (also known as SARS), indicating that the epitope is highly conserved, which may make it more difficult for escape mutants to develop. VIR-7831/GSK4182136 has been engineered to enhance lung bioavailability and have an extended half-life.
VIR-7832 is a monoclonal antibody that has shown the ability to neutralize SARS-CoV-2 live virus in vitro. The antibody binds to an epitope on SARS-CoV-2 that is shared with SARS-CoV-1 (also known as SARS), indicating that the epitope is highly conserved, which may make it more difficult for escape mutants to develop. VIR-7832 has been engineered to enhance lung bioavailability, have an extended half-life, and potentially function as a therapeutic and/or prophylactic T cell vaccine.
About the Vir and GSK Collaboration
Vir Forward-Looking Statements
This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Words such as “may,” “will,” “could,” “expect,” “plan,” “anticipate,” “believe,” “estimate,” “goal,” “intend,” “potential,” “candidate,” “continuing,” “developing” and similar expressions (as well as other words or expressions referencing future events, conditions or circumstances) are intended to identify forward-looking statements. These forward-looking statements are based on Vir’s expectations and assumptions as of the date of this press release. Each of these forward-looking statements involves risks and uncertainties. Actual results may differ materially from these forward-looking statements. Forward-looking statements contained in this press release include statements regarding the timing of commencement of clinical trials of the company’s antibodies to treat and prevent COVID-19, the ability of the company’s antibodies to neutralize the SARS-CoV-2 virus, the company’s efforts to identify additional antibodies, the ability of S309 to cover the entire family of related coronaviruses or S309’s ability to recruit the rest of the immune system to kill off already infected cells, as well as statements about the highly conserved nature of the epitope recognized by VIR-7831 and VIR-7832 making it more difficult for escape mutants to develop. Many factors may cause differences between current expectations and actual results including unexpected safety or efficacy data observed during preclinical or clinical studies, challenges in neutralizing SARS-CoV-2, difficulty in collaborating with other companies or government agencies, and challenges in accessing manufacturing capacity. Other factors that may cause actual results to differ from those expressed or implied in the forward-looking statements in this press release are discussed in Vir’s filings with the U.S. Securities and Exchange Commission, including the section titled “Risk Factors” contained therein. Except as required by law, Vir assumes no obligation to update any forward-looking statements contained herein to reflect any change in expectations, even as new information becomes available.
Neera Ravindran, M.D. VP, Head of Investor Relations & Strategic Communicationsnravindran@vir.bio +1-415-506-5256 Media Cara MillerVP, Corporate Communications email@example.com +1-415-941-6746
Source: Vir Biotechnology, Inc.