Patents by Inventor Gregory I. Frost

Gregory I. Frost 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: 20120093770
    Abstract: The invention relates to the discovery of novel soluble neutral active Hyaluronidase Glycoproteins (sHASEGPs), methods of manufacture, and their use to facilitate administration of other molecules or to alleviate glycosaminoglycan associated pathologies. Minimally active polypeptide domains of the soluble, neutral active sHASEGP domains are described that include asparagine-linked sugar moieties required for a functional neutral active hyaluronidase domain. Included are modified amino-terminal leader peptides that enhance secretion of sHASEGP. The invention further comprises sialated and pegylated form of a recombinant sHASEGP to enhance stability and serum pharmacokinetics over naturally occurring slaughterhouse enzymes. Further described are suitable formulations of a substantially purified recombinant sHASEGP glycoprotein derived from a eukaryotic cell that generate the proper glycosylation required for its optimal activity.
    Type: Application
    Filed: December 15, 2011
    Publication date: April 19, 2012
    Inventors: Louis H. Bookbinder, Anirban Kundu, Gregory I. Frost
  • Patent number: 8105586
    Abstract: The invention relates to the discovery of novel soluble neutral active Hyaluronidase Glycoproteins (sHASEGPs), methods of manufacture, and their use to facilitate administration of other molecules or to alleviate glycosaminoglycan associated pathologies. Minimally active polypeptide domains of the soluble, neutral active sHASEGP domains are described that include asparagine-linked sugar moieties required for a functional neutral active hyaluronidase domain. Included are modified amino-terminal leader peptides that enhance secretion of sHASEGP. The invention further comprises sialated and pegylated form of a recombinant sHASEGP to enhance stability and serum pharmacokinetics over naturally occurring slaughterhouse enzymes. Further described are suitable formulations of a substantially purified recombinant sHASEGP glycoprotein derived from a eukaryotic cell that generate the proper glycosylation required for its optimal activity.
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: January 31, 2012
    Assignee: Halozyme, Inc.
    Inventors: Louis H. Bookbinder, Anirban Kundu, Gregory I. Frost
  • Publication number: 20120020951
    Abstract: Provided herein are methods for ameliorating an adverse effect of systemic administration of a PEG hyaluronan degrading enzyme to a subject. The methods involve systemically administering a PEGylated hyaluronan degrading enzyme, particularly a PEGylated hyaluronidase, such as any of the animal or bacterial hyaluronidases, to the subject and administering an amount of a corticosteroid sufficient to ameliorate the adverse effect. Also provided are method of treating a hyaluronan-associated disease or condition for single-agent therapy or combination therapy.
    Type: Application
    Filed: July 15, 2011
    Publication date: January 26, 2012
    Inventors: Harold Michael Shepard, Curtis Thompson, Xiaoming Li, Gregory I. Frost
  • Publication number: 20110212074
    Abstract: The identification of the HYAL 1 hyaluronidase enzyme as a human plasma-derived myeloid colony-stimulating factor (CSF), herein designated CSF5-hyaluronidase, its recombinant production and methods of use are described. This protein may be used for the treatment of myelosuppression as may occur after irradiation, chemotherapy or other diseases where an increase in leukocyte levels may be beneficial. For example, CSF5-may be used to enhance the immune response to viral infection or other diseases associated with immune suppression.
    Type: Application
    Filed: April 29, 2011
    Publication date: September 1, 2011
    Inventors: Gregory I. Frost, Per Borgstrom
  • Publication number: 20110152359
    Abstract: Provided are soluble neutral active Hyaluronidase Glycoproteins (sHASEGP's), methods of manufacture, and their use to facilitate administration of other molecules or to alleviate glycosaminoglycan associated pathologies. Minimally active polypeptide domains of the soluble, neutral active sHASEGP domains are described that include asparagine-linked sugar moieties required for a functional neutral active hyaluronidase domain. Included are modified amino-terminal leader peptides that enhance secretion of sHASEGP. Sialated and pegylated forms of the sHASEGPs also are provided. Methods of treatment by administering sHASEGPs and modified forms thereof also are provided.
    Type: Application
    Filed: December 21, 2010
    Publication date: June 23, 2011
    Inventors: Louis H. Bookbinder, Anirban Kundu, Gregory I. Frost
  • Patent number: 7871607
    Abstract: The invention relates to the discovery of novel soluble neutral active Hyaluronidase Glycoproteins (sHASEGPs), methods of manufacture, and their use to facilitate administration of other molecules or to alleviate glycosaminoglycan associated pathologies. Minimally active polypeptide domains of the soluble, neutral active sHASEGP domains are described that include asparagine-linked sugar moieties required for a functional neutral active hyaluronidase domain. Included are modified amino-terminal leader peptides that enhance secretion of sHASEGP. The invention further comprises sialated and pegylated forms of a recombinant sHASEGP to enhance stability and serum pharmacokinetics over naturally occurring slaughterhouse enzymes. Further described are suitable formulations of a substantially purified recombinant sHASEGP glycoprotein derived from a eukaryotic cell that generate the proper glycosylation required for its optimal activity.
    Type: Grant
    Filed: February 23, 2005
    Date of Patent: January 18, 2011
    Assignee: Halozyme, Inc.
    Inventors: Louis H. Bookbinder, Anirban Kundu, Gregory I. Frost
  • Publication number: 20110008309
    Abstract: The invention relates to the discovery of novel soluble neutral active Hyaluronidase Glycoproteins (sHASEGPs), methods of manufacture, and their use to facilitate administration of other molecules or to alleviate glycosaminoglycan associated pathologies. Minimally active polypeptide domains of the soluble, neutral active sHASEGP domains are described that include asparagine-linked sugar moieties required for a functional neutral active hyaluronidase domain. Included are modified amino-terminal leader peptides that enhance secretion of sHASEGP. The invention further comprises sialated and pegylated form of a recombinant sHASEGP to enhance stability and serum pharmacokinetics over naturally occurring slaughterhouse enzymes. Further described are suitable formulations of a substantially purified recombinant sHASEGP glycoprotein derived from a eukaryotic cell that generate the proper glycosylation required for its optimal activity.
    Type: Application
    Filed: June 15, 2010
    Publication date: January 13, 2011
    Inventors: Louis H. Bookbinder, Anirban Kundu, Gregory I. Frost
  • Publication number: 20100331279
    Abstract: Methods to prevent the rejection of immunogenic tissues in an animal by administering a non-immunogenic, poorly catabolized molecule in an amount sufficient to inhibit an immune response are described herein. Also described are compositions that are useful for inhibiting immune responses in animals that are recipients of cellular transplants. For example, these methods and compositions can be used to prevent the rejection of xenografted and allografted tissues in an animal.
    Type: Application
    Filed: August 31, 2010
    Publication date: December 30, 2010
    Inventors: Gregory I. Frost, Per Borgstrom
  • Patent number: 7846431
    Abstract: The invention relates to the discovery of novel soluble neutral active Hyaluronidase Glycoproteins (sHASEGPs), methods of manufacture, and their use to facilitate administration of other molecules or to alleviate glycosaminoglycan associated pathologies. Minimally active polypeptide domains of the soluble, neutral active sHASEGP domains are described that include asparagine-linked sugar moieties required for a functional neutral active hyaluronidase domain. Included are modified amino-terminal leader peptides that enhance secretion of sHASEGP. The invention further comprises sialated and pegylated form of a recombinant sHASEGP to enhance stability and serum pharmacokinetics over naturally occurring slaughterhouse enzymes. Further described are suitable formulations of a substantially purified recombinant sHASEGP glycoprotein derived from a eukaryotic cell that generate the proper glycosylation required for its optimal activity.
    Type: Grant
    Filed: March 4, 2010
    Date of Patent: December 7, 2010
    Assignee: Halozyme, Inc.
    Inventors: Louis Bookbinder, Anirban Kundu, Gregory I. Frost
  • Publication number: 20100284995
    Abstract: Provided are modified matrix metalloprotease (MMP) enzymes that exhibit temperature-dependent activity and uses thereof. The MMPs can be used, for example, to treat ECM-mediated diseases or disorders characterized by increased deposition or accumulation of one or more ECM components.
    Type: Application
    Filed: March 5, 2010
    Publication date: November 11, 2010
    Inventors: Louis Bookbinder, Gregory I. Frost, Gilbert Keller, Gerhard Johann Frey, Hwai Wen Chang, Jay Milton Short
  • Patent number: 7829081
    Abstract: The invention relates to the discovery of novel soluble neutral active Hyaluronidase Glycoproteins (sHASEGPs), methods of manufacture, and their use to facilitate administration of other molecules or to alleviate glycosaminoglycan associated pathologies. Minimally active polypeptide domains of the soluble, neutral active sHASEGP domains are described that include asparagine-linked sugar moieties required for a functional neutral active hyaluronidase domain. Included are modified amino-terminal leader peptides that enhance secretion of sHASEGP. The invention further comprises sialated and pegylated form of a recombinant sHASEGP to enhance stability and serum pharmacokinetics over naturally occurring slaughterhouse enzymes. Further described are suitable formulations of a substantially purified recombinant sHASEGP glycoprotein derived from a eukaryotic cell that generate the proper glycosylation required for its optimal activity.
    Type: Grant
    Filed: March 4, 2010
    Date of Patent: November 9, 2010
    Assignee: Halozyme, Inc.
    Inventors: Louis H. Bookbinder, Anirban Kundu, Gregory I. Frost
  • Patent number: 7781397
    Abstract: The invention is based on the discovery of methods for purification of an acid active hyaluronidase found in human plasma (hpHAse), including both biochemical and immunoaffinity purification methods. The method of immunoaffinity purification of the invention is based on the discovery of a method for identifying antibodies that specifically bind native hpHAse (anti-native hpHAse antibodies), and anti-native hpHAse antibodies identified by this screening method. The invention also features an assay for sensitive detection of HAse activity using biotinylated hyaluronic acid (bHA). Purification and characterization of hpHAse lead to the inventors' additional discovery that hpHAse is encoded by the LuCa-1 gene, which gene is present in the human chromosome at 3p21.3, a region associated with tumor suppression. The invention additionally features methods of treating tumor-bearing patients by administration of hpHAse and/or transformation of cells with hpHAse-encoding DNA.
    Type: Grant
    Filed: October 3, 2006
    Date of Patent: August 24, 2010
    Assignee: The Regents of the University of California
    Inventors: Robert Stern, Gregory I. Frost, Anthony Csoka, Tim M. Wong
  • Publication number: 20100211015
    Abstract: The invention relates to the discovery of novel soluble neutral active Hyaluronidase Glycoproteins (sHASEGPs), methods of manufacture, and their use to facilitate administration of other molecules or to alleviate glycosaminoglycan associated pathologies. Minimally active polypeptide domains of the soluble, neutral active sHASEGP domains are described that include asparagine-linked sugar moieties required for a functional neutral active hyaluronidase domain. Included are modified amino-terminal leader peptides that enhance secretion of sHASEGP. The invention further comprises sialated and pegylated form of a recombinant sHASEGP to enhance stability and serum pharmacokinetics over naturally occurring slaughterhouse enzymes. Further described are suitable formulations of a substantially purified recombinant sHASEGP glycoprotein derived from a eukaryotic cell that generate the proper glycosylation required for its optimal activity.
    Type: Application
    Filed: March 4, 2010
    Publication date: August 19, 2010
    Inventors: Louis H. Bookbinder, Anirban Kundu, Gregory I. Frost
  • Publication number: 20100196423
    Abstract: The invention relates to the discovery of novel soluble neutral active Hyaluronidase Glycoproteins (sHASEGPs), methods of manufacture, and their use to facilitate administration of other molecules or to alleviate glycosaminoglycan associated pathologies. Minimally active polypeptide domains of the soluble, neutral active sHASEGP domains are described that include asparagine-linked sugar moieties required for a functional neutral active hyaluronidase domain. Included are modified amino-terminal leader peptides that enhance secretion of sHASEGP. The invention further comprises sialated and pegylated form of a recombinant sHASEGP to enhance stability and serum pharmacokinetics over naturally occurring slaughterhouse enzymes. Further described are suitable formulations of a substantially purified recombinant sHASEGP glycoprotein derived from a eukaryotic cell that generate the proper glycosylation required for its optimal activity.
    Type: Application
    Filed: March 4, 2010
    Publication date: August 5, 2010
    Inventors: Louis H. Bookbinder, Anirban Kundu, Gregory I. Frost
  • Patent number: 7767429
    Abstract: The invention relates to the discovery of novel soluble neutral active Hyaluronidase Glycoproteins (sHASEGP's), methods of manufacture, and their use to facilitate administration of other molecules or to alleviate glycosaminoglycan associated pathologies. Minimally active polypeptide domains of the soluble, neutral active sHASEGP domains are described that include asparagine-linked sugar moieties required for a functional neutral active hyaluronidase domain. Included are modified amino-terminal leader peptides that enhance secretion of sHASEGP. The invention further comprises sialated and pegylated forms of a recombinant sHASEGP to enhance stability and serum pharmacokinetics over naturally occurring slaughterhouse enzymes. Further described are suitable formulations of a substantially purified recombinant sHASEGP glycoprotein derived from a eukaryotic cell that generate the proper glycosylation required for its optimal activity.
    Type: Grant
    Filed: March 5, 2004
    Date of Patent: August 3, 2010
    Assignee: Halozyme, Inc.
    Inventors: Louis H. Bookbinder, Anirban Kundu, Gregory I. Frost
  • Publication number: 20100184845
    Abstract: The identification of the HYAL1 hyaluronidase enzyme as a human plasma-derived myeloid colony-stimulating factor (CSF), herein designated CSF5-hyaluronidase, its recombinant production and methods of use are described. This protein may be used for the treatment of myelosuppression as may occur after irradiation, chemotherapy or other diseases where an increase in leukocyte levels may be beneficial. For example, CSF5- may be used to enhance the immune response to viral infection or other diseases associated with immune suppression.
    Type: Application
    Filed: April 1, 2010
    Publication date: July 22, 2010
    Inventors: Gregory I. Frost, Per Borgstrom
  • Publication number: 20100143457
    Abstract: Soluble PH20 polypeptides are provided, including extended soluble PH20 polypeptides, and uses thereof. Also provided are other C-terminally truncated PH20 polypeptides and partially deglycosylated PH20 polypeptides and uses thereof.
    Type: Application
    Filed: December 9, 2009
    Publication date: June 10, 2010
    Inventors: Ge Wei, Krishnasamy Panneer Selvam, Louis Bookbinder, Gregory I. Frost
  • Patent number: 7718428
    Abstract: The identification of the HYAL1 hyaluronidase enzyme as a human plasma-derived myeloid colony-stimulating factor (CSF), designated CSF5-hyaluronidase, its recombinant production and methods of use are described. This protein may be used for the treatment of myelosuppression as may occur after irradiation, chemotherapy or other diseases where an increase in leukocyte levels may be beneficial. For example, CSF5-hyaluronidase may be used to enhance the immune response to viral infection or other diseases associated with immune suppression.
    Type: Grant
    Filed: May 9, 2006
    Date of Patent: May 18, 2010
    Assignee: Halozyme, Inc.
    Inventors: Gregory I. Frost, Per Borgstrom
  • Publication number: 20100074885
    Abstract: Provided are combinations, compositions and kits containing a immune globulin (IG) composition and a soluble hyaluronidase composition formulated for subcutaneous administration. Such products can be used in methods of treating IG-treatable diseases or conditions. Also provided are methods for subcutaneous administration of immune globulin whereby the dosing regimen is substantially the same as for intravenous administration of the same dosage for treatment of the same IG-treatable disease or condition.
    Type: Application
    Filed: March 16, 2009
    Publication date: March 25, 2010
    Inventors: Richard Schiff, Heinz Leibl, Gregory I. Frost
  • Publication number: 20100015698
    Abstract: The invention relates to the discovery of novel Chondroitinase Glycoproteins (CHASEGPs), methods of manufacture, and potential uses in conditions where removal of chondroitin sulfates may be of therapeutic benefit. Chondroitinase Glycoproteins require both a substantial portion of the catalytic domain of the CHASEGP polypeptide and asparagine-linked glycosylation for optimal chondroitinase activity. The invention also includes carboxy-terminal deletion variants of CHASEGP that result in secreted variants of the protein to facilitate manufacture of a recombinant CHASEGP. Further described are suitable formulations of a substantially purified recombinant CHASEGP glycoprotein derived from a eukaryotic cell that generate the proper glycosylation required for its optimal activity. CHASEGP is useful for the degradation of glycosaminoglycans and chondroitin sulfate proteoglycans under clinical conditions where their removal is of therapeutic value.
    Type: Application
    Filed: May 29, 2009
    Publication date: January 21, 2010
    Inventors: Gregory I. Frost, Anirban Kundu, Louis H. Bookbinder