Patents by Inventor John Andrew Chaddock

John Andrew Chaddock 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).

  • Patent number: 10744190
    Abstract: The present invention relates to a modified polypeptide comprising a non-cytotoxic protease, a translocation domain, a destructive protease cleavage site and a Targeting Moiety that binds to a Binding Site on a nerve cell, wherein after cleavage of the destructive cleavage site the polypeptide has reduced potency. The destructive cleavage site is recognised and cleaved by a protease present at or in an off-site target cell, and, in one embodiment, the polypeptide is a modified clostridial neurotoxin. The present invention also relates to the use of said polypeptides for treating a range of conditions, and to nucleic acids encoding said polypeptides.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: August 18, 2020
    Assignee: IPSEN BIOINNOVATION LIMITED
    Inventors: John Andrew Chaddock, Keith Alan Foster
  • Patent number: 9849163
    Abstract: The present invention relates to a modified polypeptide comprising a non-cytotoxic protease, a translocation domain, a destructive protease cleavage site and a Targeting Moiety that binds to a Binding Site on a nerve cell, wherein after cleavage of the destructive cleavage site the polypeptide has reduced potency. The destructive cleavage site is recognized and cleaved by a protease present at or in an off-site target cell, and, in one embodiment, the polypeptide is a modified clostridial neurotoxin. The present invention also relates to the use of said polypeptides for treating a range of conditions, and to nucleic acids encoding said polypeptides.
    Type: Grant
    Filed: December 16, 2009
    Date of Patent: December 26, 2017
    Assignee: Ipsen Bioinnovation Limited
    Inventors: John Andrew Chaddock, Keith Alan Foster
  • Publication number: 20160279208
    Abstract: The present invention relates to a modified polypeptide comprising a non-cytotoxic protease, a translocation domain, a destructive protease cleavage site and a Targeting Moiety that binds to a Binding Site on a nerve cell, wherein after cleavage of the destructive cleavage site the polypeptide has reduced potency. The destructive cleavage site is recognised and cleaved by a protease present at or in an off-site target cell, and, in one embodiment, the polypeptide is a modified clostridial neurotoxin. The present invention also relates to the use of said polypeptides for treating a range of conditions, and to nucleic acids encoding said polypeptides.
    Type: Application
    Filed: April 28, 2016
    Publication date: September 29, 2016
    Inventors: John Andrew CHADDOCK, Keith Alan FOSTER
  • Publication number: 20140348828
    Abstract: The present invention relates to treatment of disease by inhibition of cellular secretory processes, to agents and compositions therefor, and to manufacture of those agents and compositions. The present invention relates particularly, to treatment of disease dependent upon the exocytotic activity of endocrine cells, exocrine cells, inflammatory cells, cells of the immune system, cells of the cardiovascular system and bone cells.
    Type: Application
    Filed: August 14, 2014
    Publication date: November 27, 2014
    Inventors: Keith Alan FOSTER, John Andrew CHADDOCK, Conrad Padraig QUINN, John Robert PURKISS
  • Patent number: 8852603
    Abstract: The present invention relates to treatment of disease by inhibition of cellular secretory processes, to agents and compositions therefor, and to manufacture of those agents and compositions. The present invention relates particularly, to treatment of disease dependent upon the exocytotic activity of endocrine cells, exocrine cells, inflammatory cells, cells of the immune system, cells of the cardiovascular system and bone cells.
    Type: Grant
    Filed: January 6, 2012
    Date of Patent: October 7, 2014
    Assignee: Syntaxin Limited
    Inventors: Keith Alan Foster, John Andrew Chaddock, Conrad Padraig Quinn, John Robert Purkiss
  • Publication number: 20120128649
    Abstract: The present invention relates to a modified polypeptide comprising a non-cytotoxic protease, a translocation domain, a destructive protease cleavage site and a Targeting Moiety that binds to a Binding Site on a nerve cell, wherein after cleavage of the destructive cleavage site the polypeptide has reduced potency. The destructive cleavage site is recognised and cleaved by a protease present at or in an off-site target cell, and, in one embodiment, the polypeptide is a modified clostridial neurotoxin. The present invention also relates to the use of said polypeptides for treating a range of conditions, and to nucleic acids encoding said polypeptides.
    Type: Application
    Filed: December 16, 2009
    Publication date: May 24, 2012
    Applicant: SYNTAXIN LIMITED
    Inventors: John Andrew Chaddock, Keith Alan Foster
  • Publication number: 20120101027
    Abstract: The present invention relates to treatment of disease by inhibition of cellular secretory processes, to agents and compositions therefor, and to manufacture of those agents and compositions. The present invention relates particularly, to treatment of disease dependent upon the exocytotic activity of endocrine cells, exocrine cells, inflammatory cells, cells of the immune system, cells of the cardiovascular system and bone cells.
    Type: Application
    Filed: January 6, 2012
    Publication date: April 26, 2012
    Applicant: SYNTAXIN LIMITED
    Inventors: Keith Alan FOSTER, John Andrew CHADDOCK, Conrad Padraig QUINN, John Robert PURKISS
  • Publication number: 20110152174
    Abstract: The present invention relates to treatment of disease by inhibition of cellular secretory processes, to agents and compositions therefor, and to manufacture of those agents and compositions. The present invention relates particularly, to treatment of disease dependent upon the exocytotic activity of endocrine cells, exocrine cells, inflammatory cells, cells of the immune system, cells of the cardiovascular system and bone cells.
    Type: Application
    Filed: February 7, 2011
    Publication date: June 23, 2011
    Applicant: SYNTAXIN LIMITED
    Inventors: Keith Alan FOSTER, John Andrew CHADDOCK, Conrad Padraig QUINN, John Robert PURKISS
  • Patent number: 7452543
    Abstract: A class of novel agents that are able to modify nociceptive afferent function is provided. The agents may inhibit the release of neurotransmitters from discrete populations of neurones and thereby reduce or preferably prevent the transmission of afferent pain signals from peripheral to central pain fibers. They comprise a galactose-binding lectin linked to a derivative of a clostridial neurotoxin. The derivative of the clostridial neurotoxin comprises the L-chain, or a fragment thereof, which includes the active proteolytic enzyme domain of the light (L) chain, linked to a molecule or domain with membrane translocating activity. The agents may be used in or as pharmaceuticals for the treatment of pain, particular chronic pain.
    Type: Grant
    Filed: October 25, 2005
    Date of Patent: November 18, 2008
    Assignee: Syntaxin Ltd.
    Inventors: John Andrew Chaddock, Philip Marks, Michael John Duggan
  • Patent number: 7208466
    Abstract: The present invention relates to the treatment of pain and to compounds that modulate C-fibre activity. In particular, the present invention relates to the use of a lectin in the manufacture of a medicament for modulation of C-fibre neuron activity, and to lectin conjugates. The lectin conjugates comprise a lectin coupled to a peptide or protein, wherein the peptide or protein is substantially free of Clostridial neurotoxin enzyme activity. The present invention also concerns methods for manufacturing conjugates. The compounds and compositions described have particular application in the treatment of diseases of which C-fibre activity is a component. Such diseases include pain, inflamation, psoriasis and other C-fibre related conditions.
    Type: Grant
    Filed: March 31, 2000
    Date of Patent: April 24, 2007
    Assignee: The Health Protection Agency
    Inventors: Keith Alan Foster, John Andrew Chaddock, Conrad Padraig Quinn
  • Patent number: 7193066
    Abstract: Toxin derivatives are prepared by proteolytic treatment of holotoxin, and their toxicity is reduced by contacting the preparation with a ligand, which can be a metal or an antibody or another ligand. This ligand selectively binds to the toxin but not to the toxin derivative. Removing the ligand and toxin bound to the ligand further reduces toxicity. A second ligand is used to remove conjugates of the toxin and the first ligand. Compositions contain the purified derivative, optionally plus the toxin and the ligand.
    Type: Grant
    Filed: September 13, 2000
    Date of Patent: March 20, 2007
    Assignee: The Health Protection Agency
    Inventors: John Andrew Chaddock, Frances Celine Gail Alexander, Keith Alan Foster
  • Patent number: 7052702
    Abstract: A class of novel agents that are able to modify nociceptive afferent function is provided. The agents may inhibit the release of neurotransmitters from discrete populations of neurones and thereby reduce or preferably prevent the transmission of afferent pain signals from peripheral to central pain fibers. They comprise a galactose-binding lectin linked to a derivative of a clostridial neurotoxin. The derivative of the clostridial neurotoxin comprises the L-chain, or a fragment thereof, which includes the active proteolytic enzyme domain of the light (L) chain, linked to a molecule or domain with membrane translocating activity. The agents may be used in or as pharmaceuticals for the treatment of pain, particularly chronic pain.
    Type: Grant
    Filed: October 7, 1998
    Date of Patent: May 30, 2006
    Assignees: Health Protection Agency, Ipsen Limited
    Inventors: Michael John Duggan, John Andrew Chaddock
  • Patent number: 6632440
    Abstract: A method of treating mucus hypersecretion, the causative factor in chronic obstructive pulmonary disease (COPD), asthma and other clinical conditions involving COPD, comprises administering a compound that inhibits exocytosis in mucus secreting cells or neurones that control or direct mucus secretion. Also described is a compound, for use in the treatment of hypersecretion of mucus, which inhibits mucus secretion by inhibiting mucus secreting cells, and/or inhibiting neurotransmitter release from neuronal cells controlling or directing mucus secretion.
    Type: Grant
    Filed: May 29, 2001
    Date of Patent: October 14, 2003
    Assignee: Health Protection Agency
    Inventors: Conrad Padraig Quinn, Keith Alan Foster, John Andrew Chaddock
  • Publication number: 20030180289
    Abstract: A method of treatment of disease by inhibition of cellular secretory processes is provided. The method has particular application in the treatment of diseases dependent upon the exocytotic activity of endocrine cells, exocrine cells, inflammatory cells, cells of the immune system, cells of the cardiovascular system, and bone cells. Agents and compositions therefor, as well as methods for manufacturing these agents and compositions, are provided. In a preferred embodiment a clostridial neurotoxin, substantially devoid of holotoxin binding affinity for neuronal cells of the presynaptic muscular junction, is associated with a targeting moiety. The targeting moiety is selected such that the clostridial toxin conjugate so formed may be directed to a non-neuronal target cell to which the conjugate may bind. Following binding, a neurotoxin component of the conjugate, which is capable of inhibition of cellular secretion, passes into the cytosol of the target cell by cellular internalisation mechanisms.
    Type: Application
    Filed: August 14, 2002
    Publication date: September 25, 2003
    Inventors: Keith Alan Foster, John Andrew Chaddock, Conrad Padraig Quinn, John Robert Purkiss