Patents by Inventor James Stefano

James Stefano has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20220089763
    Abstract: The current disclosure provides binding polypeptides (e.g., antibodies), and effector moiety conjugates thereof (e.g., antibody-drug conjugates or ADCs), comprising a site-specifically engineered drug-glycan linkage within native or engineered glycans of the binding polypeptide. The current disclosure also provides nucleic acids encoding the antigen-binding polypeptides, recombinant expression vectors and host cells for making such antigen-binding polypeptides. Methods of using the antigen-binding polypeptides disclosed herein to treat disease are also provided.
    Type: Application
    Filed: August 17, 2021
    Publication date: March 24, 2022
    Inventors: Clark Pan, Qun Zhou, James Stefano, Pradeep Dhal, Bo Chen, Diego Gianolio, Robert Miller, Huawei Qiu
  • Patent number: 11130816
    Abstract: The current disclosure provides binding polypeptides (e.g., antibodies), and effector moiety conjugates thereof (e.g., antibody-drug conjugates or ADCs), comprising a site-specifically engineered drug-glycan linkage within native or engineered glycans of the binding polypeptide. The current disclosure also provides nucleic acids encoding the antigen-binding polypeptides, recombinant expression vectors and host cells for making such antigen-binding polypeptides. Methods of using the antigen-binding polypeptides disclosed herein to treat disease are also provided.
    Type: Grant
    Filed: January 3, 2019
    Date of Patent: September 28, 2021
    Assignee: GENZYME CORPORATION
    Inventors: Clark Pan, Qun Zhou, James Stefano, Pradeep Dhal, Bo Chen, Diego Gianolio, Robert Miller, Huawei Qiu
  • Publication number: 20210163584
    Abstract: Provided are recombinant and chemically-conjugated antibodies and fragments thereof modified with one or more poly-aspartate (poly-D) peptides (e.g., a D10 sequence) to improve localization of the antibodies or fragments to bone. Methods of making and using of these antibodies and fragments also are disclosed.
    Type: Application
    Filed: October 23, 2020
    Publication date: June 3, 2021
    Applicant: Genzyme Corporation
    Inventors: Huawei Qiu, Sunghae Park, James Stefano
  • Patent number: 10844115
    Abstract: Provided are recombinant and chemically-conjugated antibodies and fragments thereof modified with one or more poly-aspartate (poly-D) peptides (e.g., a D10 sequence) to improve localization of the antibodies or fragments to bone. Methods of making and using of these antibodies and fragments also are disclosed.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: November 24, 2020
    Assignee: Genzyme Corporation
    Inventors: Huawei Qiu, Sunghae Park, James Stefano
  • Patent number: 10806797
    Abstract: The present invention relates to a prodrug or a pharmaceutically acceptable salt thereof comprising an GLP-1/Glucagon agonist linker conjugate Z-L1-L2-L-Y—R20, wherein Y represents an GLP-1/Glucagon agonist moiety; and -L is a linker moiety—by formula (Ia), wherein the dashed line indicates the attachment to one of the amino groups of the GLP-1/Glucagon agonist moiety by forming an amide bond. The invention further relates to pharmaceutical compositions comprising said prodrugs as well as their use as a medicament for treating or preventing diseases or disorders which can be treated by GLP-1/Glucagon agonist.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: October 20, 2020
    Assignee: SANOFI
    Inventors: Dieter Kadereit, Michael Wagner, Thomas Olpp, Nino Meyer, Pradeep Dhal, Paul Konowicz, Robert Miller, James Stefano, Magnus Besev, Martin Bossart, Katrin Lorenz, Torsten Haack, Andreas Evers
  • Patent number: 10792342
    Abstract: Methods of making ligand-decorated polymer conjugates of therapeutic glycoproteins are described. Improved targeting of glycoproteins to specific tissues is achieved by masking the natural carbohydrate and other surface determinants with high molecular weight polymers, such as, e.g., PEG, polysialic acid, etc., which in turn are decorated with target-specific ligands. In some embodiments, acid-labile linkages in such conjugates or rapidly degradable masking groups allow for the intracellular release of the polymer from the glycoprotein, for example, under conditions found in lysosomes.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: October 6, 2020
    Assignee: Genzyme Corporation
    Inventor: James Stefano
  • Publication number: 20190233531
    Abstract: The current disclosure provides binding polypeptides (e.g., antibodies), and effector moiety conjugates thereof (e.g., antibody-drug conjugates or ADCs), comprising a site-specifically engineered drug-glycan linkage within native or engineered glycans of the binding polypetpide. The current disclosure also provides nucleic acids encoding the antigen-binding polypeptides, recombinant expression vectors and host cells for making such antigen-binding polypeptides. Methods of using the antigen-binding polypeptides disclosed herein to treat disease are also provided.
    Type: Application
    Filed: January 3, 2019
    Publication date: August 1, 2019
    Inventors: Clark Pan, Qun Zhou, James Stefano, Pradeep Dhal, Bo Chen, Diego Gianolio, Robert Miller, Huawei Qiu
  • Patent number: 10308917
    Abstract: The invention provides compositions and methods for treating a disease or disorder associate with vascular endothelial growth factor (VEGF). Specifically, the invention relates to an oligomerized VEGF binding domain to provide VEGF antagonism, and thereby treat diseases associated thereof.
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: June 4, 2019
    Assignee: GENZYME CORPORATION
    Inventors: James Stefano, Clark Pan, Huawei Qiu, Michael O'Callaghan, Gloria Matthews
  • Patent number: 10214589
    Abstract: The current disclosure provides binding polypeptides (e.g., antibodies), and effector moiety conjugates thereof (e.g., antibody-drug conjugates or ADCs), comprising a site-specifically engineered drug-glycan linkage within native or engineered glycans of the binding polypeptide. The current disclosure also provides nucleic acids encoding the antigen-binding polypeptides, recombinant expression vectors and host cells for making such antigen-binding polypeptides. Methods of using the antigen-binding polypeptides disclosed herein to treat disease are also provided.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: February 26, 2019
    Assignee: GENZYME CORPORATION
    Inventors: Clark Pan, Qun Zhou, James Stefano, Pradeep Dhal, Bo Chen, Diego Gianolio, Robert Miller, Huawei Qiu
  • Publication number: 20190054154
    Abstract: Methods of making ligand-decorated polymer conjugates of therapeutic glycoproteins are described. Improved targeting of glycoproteins to specific tissues is achieved by masking the natural carbohydrate and other surface determinants with high molecular weight polymers, such as, e.g., PEG, polysialic acid, etc., which in turn are decorated with target-specific ligands. In some embodiments, acid-labile linkages in such conjugates or rapidly degradable masking groups allow for the intracellular release of the polymer from the glycoprotein, for example, under conditions found in lysosomes.
    Type: Application
    Filed: July 27, 2018
    Publication date: February 21, 2019
    Applicant: Genzyme Corporation
    Inventor: James STEFANO
  • Publication number: 20180289822
    Abstract: The present invention relates to a prodrug or a pharmaceutically acceptable salt thereof comprising an GLP-1/Glucagon agonist linker conjugate Z-L1-L2-L-Y—R20, wherein Y represents an GLP-1/Glucagon agonist moiety; and -L is a linker moiety—by formula (Ia), wherein the dashed line indicates the attachment to one of the amino groups of the GLP-1/Glucagon agonist moiety by forming an amide bond. The invention further relates to pharmaceutical compositions comprising said prodrugs as well as their use as a medicament for treating or preventing diseases or disorders which can be treated by GLP-1/Glucagon agonist.
    Type: Application
    Filed: June 2, 2016
    Publication date: October 11, 2018
    Inventors: Dieter KADEREIT, Michael WAGNER, Thomas OLPP, Nino MEYER, Pradeep DHAL, Paul KONOWICZ, Robert MILLER, James STEFANO, Magnus BESEV, Martin BOSSART, Katrin LORENZ, Torsten HAACK, Andreas EVERS
  • Publication number: 20180208650
    Abstract: Provided are recombinant and chemically-conjugated antibodies and fragments thereof modified with one or more poly-aspartate (poly-D) peptides (e.g., a D10 sequence) to improve localization of the antibodies or fragments to bone. Methods of making and using of these antibodies and fragments also are disclosed.
    Type: Application
    Filed: January 19, 2018
    Publication date: July 26, 2018
    Applicant: Genzyme Corporation
    Inventors: Huawei Qiu, Sunghae Park, James Stefano
  • Publication number: 20170267774
    Abstract: The current disclosure provides binding polypeptides (e.g., antibodies), and effector moiety conjugates thereof (e.g., antibody-drug conjugates or ADCs), comprising a site-specifically engineered drug-glycan linkage within native or engineered glycans of the binding polypetpide. The current disclosure also provides nucleic acids encoding the antigen-binding polypeptides, recombinant expression vectors and host cells for making such antigen-binding polypeptides. Methods of using the antigen-binding polypeptides disclosed herein to treat disease are also provided.
    Type: Application
    Filed: January 27, 2017
    Publication date: September 21, 2017
    Inventors: Clark Pan, Qun Zhou, James Stefano, Pradeep Dhal, Bo Chen, Diego Gianolio, Robert Miller, Huawei Qiu
  • Patent number: 9580511
    Abstract: The current disclosure provides binding polypeptides (e.g., antibodies), and effector moiety conjugates thereof (e.g., antibody-drug conjugates or ADCs), comprising a site-specifically engineered drug-glycan linkage within native or engineered glycans of the binding polypetpide. The current disclosure also provides nucleic acids encoding the antigen-binding polypeptides, recombinant expression vectors and host cells for making such antigen-binding polypeptides. Methods of using the antigen-binding polypeptides disclosed herein to treat disease are also provided.
    Type: Grant
    Filed: March 10, 2014
    Date of Patent: February 28, 2017
    Assignee: GENZYME CORPORATION
    Inventors: Clark Pan, Qun Zhou, James Stefano, Pradeep Dhal, Bo Chen, Diego Gianolio, Robert Miller, Huawei Qiu
  • Publication number: 20170042979
    Abstract: Methods of making ligand-decorated polymer conjugates of therapeutic glycoproteins are described. Improved targeting of glycoproteins to specific tissues is achieved by masking the natural carbohydrate and other surface determinants with high molecular weight polymers, such as, e.g., PEG, polysialic acid, etc., which in turn are decorated with target-specific ligands. In some embodiments, acid-labile linkages in such conjugates or rapidly degradable masking groups allow for the intracellular release of the polymer from the glycoprotein, for example, under conditions found in lysosomes.
    Type: Application
    Filed: October 18, 2016
    Publication date: February 16, 2017
    Applicant: Genzyme Corporation
    Inventor: James STEFANO
  • Patent number: 9498518
    Abstract: Methods of making ligand-decorated polymer conjugates of therapeutic glycoproteins are described. Improved targeting of glycoproteins to specific tissues is achieved by masking the natural carbohydrate and other surface determinants with high molecular weight polymers, such as, e.g., PEG, polysialic acid, etc., which in turn are decorated with target-specific ligands. In some embodiments, acid-labile linkages in such conjugates or rapidly degradable masking groups allow for the intracellular release of the polymer from the glycoprotein, for example, under conditions found in lysosomes.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: November 22, 2016
    Assignee: GENZYME CORPORATION
    Inventor: James Stefano
  • Publication number: 20160326501
    Abstract: The invention provides compositions and methods for treating a disease or disorder associate with vascular endothelial growth factor (VEGF). Specifically, the invention relates to an oligomerized VEGF binding domain to provide VEGF antagonism, and thereby treat diseases associated thereof.
    Type: Application
    Filed: July 25, 2016
    Publication date: November 10, 2016
    Applicant: Genzyme Corporation
    Inventors: James Stefano, Clark Pan, Huawei Qui, Michael O'Callaghan, Gloria Matthews
  • Patent number: 9441029
    Abstract: The invention provides compositions and methods for treating a disease or disorder associated with vascular endothelial growth factor (VEGF). Specifically, the invention relates to an oligomerized VEGF binding domain to provide VEGF antagonism, and thereby treat diseases associated thereof.
    Type: Grant
    Filed: August 5, 2011
    Date of Patent: September 13, 2016
    Assignee: Genzyme Corporation
    Inventors: James Stefano, Clark Pan, Huawei Qiu, Michael O'Callaghan, Gloria Matthews
  • Publication number: 20150320844
    Abstract: Methods of making ligand-decorated polymer conjugates of therapeutic glycoproteins are described. Improved targeting of glycoproteins to specific tissues is achieved by masking the natural carbohydrate and other surface determinants with high molecular weight polymers, such as, e.g., PEG, polysialic acid, etc., which in turn are decorated with target-specific ligands. In some embodiments, acid-labile linkages in such conjugates or rapidly degradable masking groups allow for the intracellular release of the polymer from the glycoprotein, for example, under conditions found in lysosomes.
    Type: Application
    Filed: November 6, 2014
    Publication date: November 12, 2015
    Applicant: GENZYME CORPORATION
    Inventor: James Stefano
  • Patent number: 8906379
    Abstract: Methods of making ligand-decorated polymer conjugates of therapeutic glycoproteins are described. Improved targeting of glycoproteins to specific tissues is achieved by masking the natural carbohydrate and other surface determinants with high molecular weight polymers, such as, e.g., PEG, polysialic acid, etc., which in turn are decorated with target-specific ligands. In some embodiments, acid-labile linkages in such conjugates or rapidly degradable masking groups allow for the intracellular release of the polymer from the glycoprotein, for example, under conditions found in lysosomes.
    Type: Grant
    Filed: January 20, 2012
    Date of Patent: December 9, 2014
    Assignee: Genzyme Corporation
    Inventor: James Stefano