Abstract: A method for producing reassortant influenza viruses is provided. Also provided are reassortant influenza viruses produced according to the method, as well as vaccines based on said reassortant influenza viruses.
Abstract: Disclosed herein are methods for enhancing immune responses to a vaccine in immunocompromised individuals, including those receiving a statin therapy. Related products are also provided.
Type:
Grant
Filed:
April 18, 2025
Date of Patent:
February 24, 2026
Assignee:
Seqirus UK Limited
Inventors:
Giuseppe Del Giudice, Rino Rappuoli, Steven Black, Uwe Nicolay
Abstract: A number of improvements for preparing vaccine antigens from disintegrated influenza viruses are disclosed. A splitting step can be followed by detergent exchange. Splitting can take place in the presence of a buffer with a higher ionic strength and/or in the presence of phosphate buffer.
Type:
Grant
Filed:
January 19, 2021
Date of Patent:
June 3, 2025
Assignee:
Seqirus UK Limited
Inventors:
Christoph Haussmann, Frank Hauschild, Bjorn Jobst
Abstract: The present disclosure relates to methods of enhancing self-amplifying mRNA molecules (SAMs) encapsulated within lipid nanoparticles (LNPs). Specifically, enhancement of the stability, potency, and/or shelf-life of SAM/LNPs formulated in the presence of reducing agents is discussed.
Abstract: Currently, the steps performed prior to release of influenza strains to vaccine manufacturers involve passaging influenza virus through eggs. The invention aims to provide procedures useful in manufacturing influenza vaccines, in which the use of eggs is reduced, and preferably is avoided altogether. For instance, rather than use chicken eggs for influenza vaccine isolation, MDCK cells (Madin Darby canine kidney cells) may be used e.g. growing in suspension, growing in a serum-free medium, growing in a protein-free medium, being non-tumorigenic, grown in the absence of an overlay medium, etc.
Abstract: Compared to an unadjuvanted vaccine, an adjuvanted influenza vaccine can reduce by almost a quarter the risk of hospitalization for respiratory illness (e.g. influenza and pneumonia) in elderly recipients. Thus the invention provides a method for immunizing an elderly subject by administering an adjuvanted influenza vaccine, whereby the subject's risk of hospitalization for respiratory illness (e.g. influenza and pneumonia) is reduced relative to an elderly subject who receives an unadjuvanted influenza vaccine.
Abstract: Disclosed herein are methods for increasing protein yield and cellular productivity. Chemical agents facilitate host cell production of biological molecules to increase product yield.
Type:
Grant
Filed:
March 11, 2019
Date of Patent:
February 13, 2024
Assignee:
Seqirus UK Limited
Inventors:
Samuel Ho, David Parker, Peter Fekkes, Ivna De Souza, Peter Mason, Pirada Allen
Abstract: An immunogenic composition comprising: (i) a non-virion influenza virus antigen, prepared from a virus grown in cell culture; and (ii) an adjuvant. Preferred adjuvants comprise oil-in-water emulsions.
Type:
Grant
Filed:
October 16, 2020
Date of Patent:
July 25, 2023
Assignee:
Seqirus UK Limited
Inventors:
Rino Rappuoli, Derek O'Hagan, Giuseppe Del Giudice
Abstract: The present invention relates to vaccine products for the treatment or prevention of viral infections. Further provided are methods of reducing contaminants associated with the preparation of cell culture vaccines. Residual functional cell culture DNA is degraded by treatment with a DNA alkylating agent, such as ?-propiolactone (BPL), thereby providing a vaccine comprising immunogenic proteins derived from a virus propagated on cell culture, substantially free of residual functional cell culture DNA.
Abstract: Disclosed herein are methods for enhancing immune responses to a vaccine in immunocompromised individuals, including those receiving a statin therapy. Related products are also provided.
Type:
Grant
Filed:
June 15, 2020
Date of Patent:
August 9, 2022
Assignee:
Seqirus UK Limited
Inventors:
Giuseppe Del Giudice, Rino Rappuoli, Steven Black, Uwe Nicolay
Abstract: Influenza vaccines include hemagglutinin from at least one influenza A virus strain and at least one influenza B virus strain. They also include an oil-in-water emulsion adjuvant with submicron oil droplets, comprising squalene. In some embodiments the hemagglutinin concentration is >12 ?g/ml per strain. In some embodiments the squalene concentration is <19 mg/ml. In some embodiments the vaccine is mercury-free. In some embodiments the vaccine has a unit dose volume between 0.2-0.3 mL. In some embodiments the squalene concentration is 9.75 mg/mL or 4.88 mg/mL. In some embodiments the vaccine includes antigens from two influenza A virus strains and two influenza B virus strains.
Type:
Grant
Filed:
June 26, 2019
Date of Patent:
February 15, 2022
Assignee:
Seqirus UK Limited
Inventors:
Mario Contorni, Derek O'Hagan, Nicola Groth
Abstract: Disclosed herein are influenza vaccine compositions, related preparations and intermediates, formulations, production methods, immunization methods, and use thereof, for achieving improved immune-protection in human subjects. More specifically, non-egg-based influenza vaccines are described, which provide improved antigenic match.
Abstract: A number of improvements for preparing vaccine antigens from disintegrated influenza viruses are disclosed. A splitting step can be followed by detergent exchange. Splitting can take place in the presence of a buffer with a higher ionic strength and/or in the presence of phosphate buffer.
Type:
Grant
Filed:
December 7, 2015
Date of Patent:
March 16, 2021
Assignee:
Seqirus UK Limited
Inventors:
Christoph Haussmann, Frank Hauschild, Bjorn Jobst
Abstract: An immunogenic composition comprising (i) a non-virion influenza virus antigen prepared from a virus grown in cell culture; and (ii) an adjuvant. Preferred adjuvants comprise oil-in-water emulsions.
Type:
Grant
Filed:
November 6, 2006
Date of Patent:
November 24, 2020
Assignee:
Seqirus UK Limited
Inventors:
Rino Rappuoli, Derek O'Hagan, Giuseppe Del Giudice
Abstract: Disclosed herein are methods for enhancing immune responses to a vaccine in immunocompromised individuals, including those receiving a statin therapy. Related products are also provided.
Type:
Grant
Filed:
January 10, 2020
Date of Patent:
July 21, 2020
Assignee:
Seqirus UK Limited
Inventors:
Giuseppe Del Giudice, Rino Rappuoli, Steven Black, Uwe Nicolay
Abstract: The present invention relates to vaccine products for the treatment or prevention of viral infections. Further provided are methods of reducing contaminants associated with the preparation of cell culture vaccines. Residual functional cell culture DNA is degraded by treatment with a DNA alkylating agent, such as ?-propiolactone (BPL), thereby providing a vaccine comprising immunogenic proteins derived from a virus propagated on cell culture, substantially free of residual functional cell culture DNA.