Details for Patent: 7,846,431

Title:	Soluble glycosaminoglycanases and methods of preparing and using soluble glycosaminoglycanases
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.
Inventor(s):	Bookbinder; Louis (San Diego, CA), Kundu; Anirban (San Diego, CA), Frost; Gregory I. (Del Mar, CA)
Assignee:	Halozyme, Inc. (San Diego, CA)
Filing Date:	Mar 04, 2010
Application Number:	12/660,869
Claims:	1. A pharmaceutical composition, comprising: a) a hyaluronidase glycoprotein that is active at neutral pH and contains at least one sugar moiety that is covalently attached to an asparagine (N) residue of the hyaluronidase polypeptide, wherein: (i) the hyaluronidase glycoprotein consists of the sequence of amino acids set forth as amino acids 36-477, 36-478, 36-479, 36-480, 36-481, 36-482, or 36-483 of SEQ ID NO:1; or (ii) the hyaluronidase glycoprotein contains amino acid substitutions in the sequence of amino acids set forth as amino acids 36-477, 36-478, 36-479, 36-480, 36-481, 36-482, or 36-483 of SEQ ID NO:1, whereby the amino acid-substituted hyaluronidase glycoprotein consists of a sequence of amino acids that has at least 95% amino acid sequence identity with the sequence of amino acids set forth as amino acids 36-477, 36-478, 36-479, 36-480, 36-481, 36-482, or 36-483 of SEQ ID NO:1; and b) an insulin that comprises an insulin selected from among an insulin lispro, an insulin glargines, an NPH insulin and a recombinant insulin. 2. A pharmaceutical composition of claim 1, wherein the hyaluronidase glycoprotein consists of amino acids 36-477, 36-478, 36-479, 36-480, 36-481, 36-482 or 36-483 of SEQ ID NO:1. 3. A pharmaceutical composition of claim 1 that comprises one or more of a hyaluronidase glycoprotein that consists of amino acids 36-477, 36-478, 36-479, 36-480, 36-481, 36-482 or 36-483 of SEQ ID NO:1. 4. A pharmaceutical composition of claim 1, wherein the hyaluronidase glycoprotein is modified with a polymer. 5. A pharmaceutical composition of claim 4, wherein the polymer is PEG or dextran. 6. A pharmaceutical composition of claim 1, wherein the composition is formulated for subcutaneous administration. 7. An insulin pen, comprising the pharmaceutical composition of claim 1. 8. A combination, comprising; a) a first composition that comprises a hyaluronidase glycoprotein that is active at neutral pH and contains at least one sugar moiety that is covalently attached to an asparagine (N) residue of the hyaluronidase polypeptide, wherein: (i) the hyaluronidase glycoprotein consists of the sequence of amino acids set forth as amino acids 36-477, 36-478, 36-479, 36-480, 36-481, 36-482, or 36-483 of SEQ ID NO:1; or (ii) the hyaluronidase glycoprotein contains amino acid substitutions in the sequence of amino acids set forth as amino acids 36-477, 36-478, 36-479, 36-480, 36-481, 36-482, or 36-483 of SEQ ID NO:1, whereby the amino acid-substituted hyaluronidase glycoprotein consists of a sequence of amino acids that has at least 95% amino acid sequence identity with the sequence of amino acids set forth as amino acids 36-477, 36-478, 36-479, 36-480, 36-481, 36-482, or 36-483 of SEQ ID NO:1; and b) a second composition that comprises an insulin selected from among an insulin lispro, an insulin glargines, an NPH insulin and a recombinant insulin. 9. A combination of claim 8, wherein the hyaluronidase glycoprotein consists of amino acids 36-477, 36-478, 36-479, 36-480, 36-481, 36-482 or 36-483 of SEQ ID NO:1. 10. A combination of claim 8 that comprises one or more of a hyaluronidase glycoprotein that consists of amino acids 36-477, 36-478, 36-479, 36-480, 36-481, 36-482 or 36-483 of SEQ ID NO:1. 11. A combination of claim 8, wherein the hyaluronidase glycoprotein is modified with a polymer. 12. A combination of claim 11, wherein the polymer is PEG or dextran. 13. The combination of claim 8 that is packaged as a kit. 14. The pharmaceutical composition of claim 1, wherein the hyaluronidase glycoprotein is produced by expression of a nucleic acid molecule that encodes amino acids 36-482 of SEQ ID NO:1 in a mammalian cell. 15. The pharmaceutical composition of claim 14, where the mammalian cell is a CHO cell. 16. The combination of claim 8, wherein the hyaluronidase glycoprotein is produced by expression of a nucleic acid molecule that encodes amino acids 36-482 of SEQ ID NO:1 in a mammalian cell. 17. The combination of claim 16, where the mammalian cell is a CHO cell. 18. The pharmaceutical composition of claim 1, wherein the hyaluronidase glycoprotein is secreted when expressed in CHO cells.