GSK and Vir Biotechnology Announce EMA Review of Dual-Action Monoclonal Antibody VIR-7831 for the Early Treatment of COVID-19
The review is being carried out by the EMA’s Committee for Human Medicinal Products (CHMP) under Article 5(3) of Regulation 726/2004 and will provide EU-wide recommendations for national authorities who may take evidence-based decisions on the early use of the medicine, ahead of any formal Marketing Authorization Application.
The review will include data from an interim analysis of efficacy and safety data from the Phase 3 COMET-ICE (COVID-19 Monoclonal antibody Efficacy Trial - Intent to Care Early) trial, which evaluated VIR-7831 as monotherapy for the early treatment of COVID-19 in adults at high risk of hospitalization. Results of the interim analysis, based on data from 583 randomized patients, demonstrated an 85% (p=0.002) reduction in hospitalization or death in those receiving VIR-7831 compared to placebo, the primary endpoint of the trial. As a result, the Independent Data Monitoring Committee recommended that the trial be stopped for enrollment due to evidence of profound efficacy. The CHMP review will also consider data on the medicine’s quality and safety.
This week, the
VIR-7831 is an investigational compound and has not been granted a marketing authorization anywhere in the world. An Emergency Use Authorization (EUA) application for VIR-7831 has been submitted to the
Preclinical data suggest VIR-7831 targets a highly conserved epitope of the SARS-CoV-2 spike protein, which may make it more difficult for resistance to develop. New in vitro data from pseudotyped virus assays published online in bioRxiv support this hypothesis as they demonstrate that VIR-7831 maintains activity against current circulating variants of concern including the
GSK is planning to submit a full Marketing Authorization Application (MAA) to the EMA which will include the data from the COMET-ICE trial.
The multi-center, double-blind, placebo-controlled COMET-ICE trial investigated VIR-7831 in adults with mild or moderate COVID-19 who are at high risk of progression to severe disease. The Phase 2 lead-in portion of the trial, which served as the first-in-human assessment, evaluated the safety and tolerability of a single 500 mg intravenous (IV) infusion of VIR-7831 or placebo over a 14-day period in 21 non-hospitalized adults enrolled across
The Phase 3 portion of the trial assessed the safety and efficacy of a single IV infusion of VIR-7831 (500 mg) or placebo in non-hospitalized participants globally. The interim analysis included 291 patients in the treatment arm and 292 patients in the placebo arm. Among those studied, 63% were Hispanic or Latinx and 7% were Black or
About the VIR-7831 Clinical Development Program
In addition to the COMET-ICE trial, the full COMET clinical development program for VIR-7831 includes:
- COMET-PEAK: An ongoing Phase 2 trial with two parts: to compare the safety and viral kinetics of 500 mg intramuscularly (IM) administered VIR-7831 to 500 mg intravenously administered VIR-7831 among low-risk adults with mild to moderate COVID-19 and to evaluate the similarity in pharmacokinetics between VIR-7831 manufactured by different processes.
- COMET-TAIL: A Phase 3 trial expected to begin in the second quarter of 2021 in high-risk adults to assess whether IM-administered VIR-7831 can reduce hospitalization or death due to COVID-19.
- COMET-STAR: A Phase 3 trial expected to begin in the second quarter of 2021 in uninfected adults at high risk to determine whether IM-administered VIR-7831 can prevent symptomatic infection.
VIR-7831 is also being evaluated in the outpatient setting in BLAZE-4, a Phase 2 trial sponsored by Eli Lilly and Company, 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. Topline data announced in
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 and have not been granted marketing authorizations anywhere in the world.
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.
About VIR-7832 / GSK4182137
VIR-7832 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 an enhanced ability to 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-7832, which incorporates Xencor’s Xtend and other Fc technologies, 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. Importantly, VIR-7832 also has been engineered to potentially enhance virus-specific T cell function, which could help treat and/or prevent COVID-19 infection.
About the Vir and GSK Collaboration
GSK Commitment to Tackling COVID-19
GSK’s response to COVID-19 has been one of the broadest in the industry, with three potential treatments in addition to our vaccine candidates in development.
GSK is collaborating with several organizations on COVID-19 vaccines by providing access to our adjuvant technology. In addition to our work with Medicago, a collaboration with Sanofi on an adjuvanted, protein-based vaccine candidate is now in Phase 2. An earlier stage collaboration with SK Bioscience is also ongoing. SK Bioscience receives funding from CEPI and the
GSK is also working with mRNA specialist, CureVac, to jointly develop next generation, multi-valent mRNA vaccines for COVID-19 with the potential to address multiple emerging variants in one vaccine. GSK will also support manufacturing of up to 100m doses of CureVac’s first generation COVID-19 vaccine.
GSK is also exploring potential therapeutic or treatment options for COVID-19 patients. We are collaborating with
GSK is a science-led global healthcare company with a special purpose: to help people do more, feel better, live longer. For further information please visit www.gsk.com/about-us.
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,” “plan,” “potential,” “aim,” “promising” 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. Forward-looking statements contained in this press release include, but are not limited to, statements regarding the EMA’s review of VIR-7831, the timing of availability of preclinical and clinical data, clinical development program updates, and data disclosures related to VIR-7831, the ability of VIR-7831 to treat and/or prevent COVID-19 (as monotherapy and in combination with bamlanivimab), the potential of VIR-7831 in the hospitalized population, the ability of VIR-7831 to neutralize the SARS-CoV-2 live virus, the ability of VIR-7831 to maintain full activity against variant strains of the virus, Vir’s collaboration with GSK, and statements related to regulatory authorizations and approvals, including plans to continue discussions with the FDA and other global regulators. Many factors may cause differences between current expectations and actual results, including challenges in obtaining regulatory approval, unexpected safety or efficacy data observed during preclinical or clinical studies, challenges in the treatment of hospitalized patients, difficulties in collaborating with other companies or government agencies, challenges in accessing manufacturing capacity, successful development and/or commercialization of alternative product candidates by our competitors, changes in expected or existing competition, delays in or disruptions to our business or clinical trials due to the COVID-19 pandemic, geopolitical changes or other external factors, and unexpected litigation or other disputes. 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
GSK Cautionary statement regarding forward-looking statements
GSK cautions investors that any forward-looking statements or projections made by GSK, including those made in this announcement, are subject to risks and uncertainties that may cause actual results to differ materially from those projected. Such factors include, but are not limited to, those described in the Company's Annual Report on Form 20-F for 2020 and any impacts of the COVID-19 pandemic.
Vir Biotechnology Contacts:
VP, Corporate Communications
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Source: Vir Biotechnology, Inc.