GSK and Vir Submit Emergency Use Authorization Application to FDA for Intramuscular Administration of Sotrovimab for the Early Treatment of COVID-19
– If authorized, would provide the option for intramuscular administration of sotrovimab, in addition to currently authorized intravenous administration –
– Submission follows COMET-TAIL Phase 3 data demonstrating that intramuscular administration of sotrovimab was non-inferior and offered similar efficacy to intravenous administration for high-risk populations –
PHILADELPHIA and SAN FRANCISCO, Jan. 13, 2022 (GLOBE NEWSWIRE) -- GlaxoSmithKline plc (LSE/NYSE: GSK) and Vir Biotechnology, Inc. (Nasdaq: VIR) today announced the submission of an application to the US Food and Drug Administration (FDA) requesting an amendment to the Emergency Use Authorization (EUA) for sotrovimab, an investigational monoclonal antibody for the early treatment of COVID-19, to include intramuscular (IM) administration. The EUA for sotrovimab was granted by the FDA in May 2021 as an investigational single-dose intravenous (IV) (500 mg) infusion SARS-CoV-2 monoclonal antibody for the early treatment of COVID-19, and the companies are requesting an expansion to the EUA to also include IM administration (500 mg).
Under the current EUA, sotrovimab can be used for the treatment of mild-to-moderate COVID-19 in adults and pediatric patients (12 years of age and older weighing at least 40 kg) with positive results of direct SARS-CoV-2 viral testing, and who are at high risk for progression to severe COVID-19, including hospitalization or death.
This submission is based on the Phase 3, randomized, open-label, non-inferiority COMET-TAIL trial, which achieved its primary endpoint, demonstrating that 500mg IM administration of sotrovimab (n=376) was non-inferior and offered similar efficacy to 500 mg IV administration (n=378) for the early treatment of mild-to-moderate COVID-19 in high-risk, non-hospitalized adults and adolescents. Low rates of serious adverse events (=1% in both arms) were observed in the headline data.
About the Sotrovimab Clinical Development Program
Sotrovimab in the United States
Sotrovimab has been authorized by the FDA for the emergency use described below. Sotrovimab is not FDA-approved for this use.
Sotrovimab is authorized only for the duration of the declaration that circumstances exist justifying the authorization of the emergency use of sotrovimab under section 564(b)(1) of the Act, 21 U.S.C. § 360bbb-3(b)(1), unless the authorization is terminated or revoked sooner.
Limitations of Authorized Use
Benefit of treatment with sotrovimab has not been observed in patients hospitalized due to COVID19. SARS-CoV-2 monoclonal antibodies may be associated with worse clinical outcomes when administered to hospitalized patients with COVID-19 requiring high flow oxygen or mechanical ventilation.
Important Safety Information
WARNINGS AND PRECAUTIONS
Hypersensitivity Including Anaphylaxis and Infusion-Related Reactions
Infusion-related reactions, occurring during the infusion and up to 24 hours after the infusion, have been observed with administration of sotrovimab. These reactions may be severe or life threatening.
Signs and symptoms of infusion-related reactions may include: fever, difficulty breathing, reduced oxygen saturation, chills, fatigue, arrhythmia (eg, atrial fibrillation, sinus tachycardia, bradycardia), chest pain or discomfort, weakness, altered mental status, nausea, headache, bronchospasm, hypotension, hypertension, angioedema, throat irritation, rash including urticaria, pruritus, myalgia, vaso-vagal reactions (eg, pre-syncope, syncope), dizziness and diaphoresis.
Consider slowing or stopping the infusion and administer appropriate medications and/or supportive care if an infusion-related reaction occurs.
Hypersensitivity reactions occurring more than 24 hours after the infusion have also been reported with the use of SARS-CoV-2 monoclonal antibodies under Emergency Use Authorization.
Clinical Worsening After SARS-CoV-2 Monoclonal Antibody Administration
Limitations of Benefit and Potential for Risk in Patients with Severe COVID-19
The most common treatment-emergent adverse events observed in the sotrovimab treatment group in COMET-ICE were rash (1%) and diarrhea (2%), all of which were Grade 1 (mild) or Grade 2 (moderate). No other treatment-emergent adverse events were reported at a higher rate with sotrovimab compared to placebo.
USE IN SPECIFIC POPULATIONS
About the GSK and Vir Collaboration
GSK Commitment to Tackling COVID-19
GSK is collaborating with several organizations on COVID-19 vaccines by providing access to its adjuvant technology. The Company is working with Sanofi SA, Medicago Inc. and SK bioscience Co., Ltd. to develop adjuvanted, protein-based vaccine candidates, and all are now in Phase 3 clinical trials. The use of an adjuvant can be of particular importance in a pandemic since it may reduce the amount of vaccine protein required per dose, allowing more vaccine doses to be produced and contributing to protecting more people in need.
GSK is also working with mRNA specialist CureVac NV to jointly develop next-generation, optimized mRNA vaccines for COVID-19 with the potential to address multiple emerging variants in one vaccine.
GSK is also exploring treatments for COVID-19 patients, collaborating with Vir Biotechnology to investigate monoclonal antibodies that could be used as therapeutic or preventive options for COVID-19.
Vir’s Commitment to COVID-19
About Vir Biotechnology
GSK Cautionary Statement Regarding Forward-Looking Statements
Vir Forward-Looking Statements
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