Patents Assigned to SPIREA LIMITED
  • Publication number: 20250041439
    Abstract: The present invention relates to antibody-drug conjugates comprising (i) an antibody or antigen-binding fragment thereof, (ii) a polymer comprising a particular repeat unit comprising an amino acid derivative, which is covalently bound to one or more biologically active moieties, such as small molecule drugs, optionally via a linker, and (iii) a polymer-antibody linker moiety which is covalently bound to both the polymer and the antibody or antigen-binding fragment thereof. Additionally, the present invention relates to pharmaceutical compositions comprising the antibody-drug conjugates and to use of the antibody-drug conjugates in medicine.
    Type: Application
    Filed: September 20, 2022
    Publication date: February 6, 2025
    Applicant: SPIREA LIMITED
    Inventors: Myriam OUBERAI, Neil Sim, James Fleming, Nicolas Camper, Mark Frigerio
  • Publication number: 20230173092
    Abstract: The present invention relates to antibody-drug conjugates comprising (i) an antibody or antigen-binding fragment thereof, (ii) a polymer comprising a particular repeat unit comprising an amino acid derivative, which is covalently bound to one or more biologically active moieties, such as small molecule drugs, optionally via a linker, and (iii) a polymer-antibody linker moiety which is covalently bound to both the polymer and the antibody or antigen-binding fragment thereof. Additionally, the present invention relates to pharmaceutical compositions comprising the antibody-drug conjugates and to use of the antibody-drug conjugates in medicine.
    Type: Application
    Filed: May 26, 2021
    Publication date: June 8, 2023
    Applicant: SPIREA LIMITED
    Inventors: Myriam OUBERAI, Neil SIM, James FLEMING, Nicolas CAMPER, Mark FRIGERIO
  • Publication number: 20220054649
    Abstract: The present invention relates to antibody-drug conjugates comprising (i) an antibody or antigen-binding fragment thereof, (ii) a polymer comprising a particular repeat unit, which is covalently bound to one or more biologically active moieties, such as small molecule drugs, optionally via a linker, and (iii) a polymer-antibody linker moiety which is covalently bound to both the polymer and the antibody or antigen-binding fragment thereof. Additionally, the present invention relates to pharmaceutical compositions comprising the antibody-drug conjugates and to use of the antibody-drug conjugates in medicine.
    Type: Application
    Filed: December 19, 2019
    Publication date: February 24, 2022
    Applicant: SPIREA LIMITED
    Inventors: Myriam Ouberai, Théophile Baïssas
  • Patent number: 11020408
    Abstract: There is provided a polymer comprising: (i) a repeat unit derived from a compound of formula (I) (Formula (I)) wherein, R1 and R2 are each independently selected from OH, OR?, SH, SR?, NH2, NHR? and NR?2; R? is C1-20 hydrocarbyl; each n is independently 0 or an integer between 1 and 6; each m is independently 0 or an integer between 1 and 4, and preferably at least one m is 1; and q is an integer between 1 and 8; and; (ii) a biologically active molecule, wherein said biologically active molecule is covalently bonded to said repeat unit; as well as methods for preparing such polymers, particles comprising said polymers and uses of said polymers and particles including use in the treatment of disease.
    Type: Grant
    Filed: June 4, 2020
    Date of Patent: June 1, 2021
    Assignee: SPIREA LIMITED
    Inventors: Myriam Marie Ouberai, Mark Welland
  • Publication number: 20200289531
    Abstract: There is provided a polymer comprising: (i) a repeat unit derived from a compound of formula (I) (Formula (I)) wherein, R1 and R2 are each independently selected from OH, OR?, SH, SR?, NH2, NHR? and NR?2; R? is C1-20 hydrocarbyl; each n is independently 0 or an integer between 1 and 6; each m is independently 0 or an integer between 1 and 4, and preferably at least one m is 1; and q is an integer between 1 and 8; and; (ii) a biologically active molecule, wherein said biologically active molecule is covalently bonded to said repeat unit; as well as methods for preparing such polymers, particles comprising said polymers and uses of said polymers and particles including use in the treatment of disease.
    Type: Application
    Filed: June 4, 2020
    Publication date: September 17, 2020
    Applicant: SPIREA LIMITED
    Inventors: Myriam Marie Ouberai, Mark Welland
  • Patent number: 10709717
    Abstract: There is provided a polymer comprising: (i) a repeat unit derived from a compound of formula (I) (Formula (I)) wherein, R1 and R2 are each independently selected from OH, OR?, SH, SR?, NH2, NHR? and NR?2; R? is C1-20 hydrocarbyl; each n is independently 0 or an integer between 1 and 6; each m is independently 0 or an integer between 1 and 4, and preferably at least one m is 1; and q is an integer between 1 and 8; and; (ii) a biologically active molecule, wherein said biologically active molecule is covalently bonded to said repeat unit; as well as methods for preparing such polymers, particles comprising said polymers and uses of said polymers and particles including use in the treatment of disease.
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: July 14, 2020
    Assignee: SPIREA LIMITED
    Inventors: Myriam Marie Ouberai, Mark Welland
  • Publication number: 20170224828
    Abstract: There is provided a polymer comprising: (i) a repeat unit derived from a compound of formula (I) (Formula (I)) wherein, R1 and R2 are each independently selected from OH, OR?, SH, SR?, NH2, NHR? and NR?2; R? is C1-20 hydrocarbyl; each n is independently 0 or an integer between 1 and 6; each m is independently 0 or an integer between 1 and 4, and preferably at least one m is 1; and q is an integer between 1 and 8; and; (ii) a biologically active molecule, wherein said biologically active molecule is covalently bonded to said repeat unit; as well as methods for preparing such polymers, particles comprising said polymers and uses of said polymers and particles including use in the treatment of disease.
    Type: Application
    Filed: October 13, 2015
    Publication date: August 10, 2017
    Applicant: SPIREA LIMITED
    Inventors: Myriam Marie Ouberai, Mark Welland