Patents by Inventor Walter Szarek

Walter Szarek 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: 20110281951
    Abstract: Therapeutic compounds and methods for modulating amyloid aggregation in a subject, whatever its clinical setting, are described. Amyloid aggregation is modulated by the administration to a subject of an effective amount of a therapeutic compound of the formula or a pharmaceutically acceptable salt or ester, such that modulation of amyloid aggregation occurs. R1 and R2 are each independently a hydrogen atom or a substituted or unsubstituted aliphatic or aryl group. Z and Q are each independently a carbonyl (C?O), thiocarbonyl (C?S), sulfonyl (SO2), or sulfoxide (S?O) group. “k” and “m” are 0 or 1, provided when k is 1, R1 is not a hydrogen atom, and when m is 1, R2 is not a hydrogen atom. In an embodiment, at least one of k or m must equal 1. “p” and “s” are each independently positive integers selected such that the biodistribution of the therapeutic compound for an intended target site is not prevented while maintaining activity of the therapeutic compound.
    Type: Application
    Filed: April 14, 2011
    Publication date: November 17, 2011
    Inventors: Walter Szarek, Donald Weaver, Xianqi Kong, Heather Gordon
  • Publication number: 20110002875
    Abstract: Therapeutic compounds and methods for inhibiting amyloid deposition in a subject, whatever its clinical setting, are described. Amyloid deposition is inhibited by the administration to a subject of an effective amount of a therapeutic compound comprising an anionic group and a carrier molecule, or a pharmaceutically acceptable salt thereof, such that an interaction between an amyloidogenic protein and a basement membrane constituent is inhibited. Preferred anionic groups are sulfonates and sulfates. Preferred carrier molecules include carbohydrates, polymers, peptides, peptide derivatives, aliphatic groups, alicyclic groups, heterocyclic groups, aromatic groups and combinations thereof.
    Type: Application
    Filed: June 8, 2010
    Publication date: January 6, 2011
    Applicant: Bellus Health (International) Limited
    Inventors: Robert Kisilevsky, Walter Szarek, Donald Weaver
  • Publication number: 20090099100
    Abstract: Therapeutic compounds and methods for modulating amyloid aggregation in a subject, whatever its clinical setting, are described. Amyloid aggregation is modulated by the administration to a subject of an effective amount of a therapeutic compound of the formula or a pharmaceutically acceptable salt or ester, such that modulation of amyloid aggregation occurs. R1 and R2 are each independently a hydrogen atom or a substituted or unsubstituted aliphatic or aryl group. Z and Q are each independently a carbonyl (C?O), thiocarbonyl (C?S), sulfonyl (SO2), or sulfoxide (S?O) group. “k” and “m” are 0 or 1, provided when k is 1, R1 is not a hydrogen atom, and when m is 1, R2 is not a hydrogen atom. In an embodiment, at least one of k or m must equal 1. “p” and “s” are each independently positive integers selected such that the biodistribution of the therapeutic compound for an intended target site is not prevented while maintaining activity of the therapeutic compound.
    Type: Application
    Filed: July 7, 2008
    Publication date: April 16, 2009
    Applicant: Bellus Health (International) Limited
    Inventors: Walter Szarek, Donald Weaver, Xianqi Kong, Heather Gordon
  • Publication number: 20080015180
    Abstract: Methods, compounds, pharmaceutical compositions and kits are described for treating or preventing amyloid-+related disease.
    Type: Application
    Filed: May 30, 2007
    Publication date: January 17, 2008
    Applicant: Neurochem (International) Limited
    Inventors: Xianqi Kong, Walter Szarek, Francine Gervais
  • Publication number: 20080004244
    Abstract: Therapeutic compounds and methods for modulating amyloid deposition in a subject, whatever its clinical setting, are described. Amyloid deposition is modulated by the administration to a subject of an effective amount of a therapeutic compound comprising a phosphonate group and a carboxylate group, a congener thereof, or a pharmaceutically acceptable salt or ester thereof. In preferred embodiments, an interaction between an amyloidogenic protein and a basement membrane constituent is modulated.
    Type: Application
    Filed: August 2, 2007
    Publication date: January 3, 2008
    Applicant: Neurochem (International) Limited
    Inventors: Walter Szarek, Xianqi Kong, Gregory Thatcher, Boris Gorine
  • Publication number: 20070265334
    Abstract: Therapeutic compounds and methods for inhibiting amyloid deposition in a subject, whatever its clinical setting, are described. Amyloid deposition is inhibited by the administration to a subject of an effective amount of a therapeutic compound comprising an anionic group and a carrier molecule, or a pharmaceutically acceptable salt thereof, such that an interaction between an amyloidogenic protein and a basement membrane constituent is inhibited. Preferred anionic groups are sulfonates and sulfates. Preferred carrier molecules include carbohydrates, polymers, peptides, peptide derivatives, aliphatic groups, alicyclic groups, heterocyclic groups, aromatic groups and combinations thereof.
    Type: Application
    Filed: February 16, 2007
    Publication date: November 15, 2007
    Applicant: Neurochem (International) Limited
    Inventors: Robert Kisilevsky, Walter Szarek, Donald Weaver
  • Publication number: 20070015737
    Abstract: Methods and compositions which are useful in the treatment of amyloidosis. In particular, methods and compositions are provided for inhibiting, preventing and treating amyloid depositions, e.g. in pancreatic islets, wherein the amyloidotic deposits are islet amyloid polypeptide (IAPP)-associated amyloid deposition or deposits. The methods of the invention involved administering to a subject a therapeutic compound which inhibits IAPP-associated amyloid deposits. Accordingly, the compositions and method of the invention are useful for inhibiting IAPP-associated amyloidosis in disorders in which such amyloid deposition occurs, such an diabetes. The invention also provides a process for the preparation of cells suitable for transplantation into a mammal, which cells are capable of forming fibrils, said process comprising contacting the cells with an inhibitor of fibril formation. In particular the process prepares cells for use in a method of treating diabetes.
    Type: Application
    Filed: November 2, 2005
    Publication date: January 18, 2007
    Applicants: Neurochem (International) Limited, Isis Innovation Limited, Queen's University at Kingston, The University of British Columbia
    Inventors: Anne Clark, Paul Fraser, Bruce Verchere, Ajay Gupta, David Migneault, Walter Szarek
  • Publication number: 20070004680
    Abstract: The present invention relates to compositions and methods to modulate the activity of gated ion channels.
    Type: Application
    Filed: March 30, 2005
    Publication date: January 4, 2007
    Applicant: PainCeptor Pharma Corporation
    Inventors: Kazimierz Babinski, Walter Szarek, Rahul Vohra, Thomas Varming, Philip Ahring, Tino Joergensen, Gordon Blackburn-Munro
  • Publication number: 20060167095
    Abstract: Therapeutic compounds and methods for inhibiting amyloid deposition in a subject, whatever its clinical setting, are described. Amyloid deposition is inhibited by the administration to a subject of an effective amount of a therapeutic compound comprising an anionic group and a carrier molecule, or a pharmaceutically acceptable salt thereof, such that an interaction between an amyloidogenic protein and a basement membrane constituent is inhibited. Preferred anionic groups are sulfonates and sulfates. Preferred carrier molecules include carbohydrates, polymers, peptides, peptide derivatives, aliphatic groups, alicyclic groups, heterocyclic groups, aromatic groups and combinations thereof.
    Type: Application
    Filed: December 22, 2005
    Publication date: July 27, 2006
    Inventors: Robert Kisilevsky, Walter Szarek, Donald Weaver
  • Publication number: 20060135479
    Abstract: Therapeutic compounds and methods for modulating amyloid deposition in a subject, whatever its clinical setting, are described. Amyloid deposition is modulated by the administration to a subject of an effective amount of a therapeutic compound comprising a phosphonate group and a carboxylate group, a congener thereof, or a pharmaceutically acceptable salt or ester thereof. In preferred embodiments, an interaction between an amyloidogenic protein and a basement membrane constituent is modulated.
    Type: Application
    Filed: October 7, 2005
    Publication date: June 22, 2006
    Inventors: Walter Szarek, Xianqi Kong, Gregory Thatcher, Boris Gorine
  • Publication number: 20050282840
    Abstract: Disclosed are compositions which modulate the interaction of nerve growth factor and brain-derived neurotrophic factor with neurotrophic receptors. Also disclosed are methods of using the compositions of the invention, including methods of administration.
    Type: Application
    Filed: February 11, 2005
    Publication date: December 22, 2005
    Applicants: PainCeptor Pharma Corporation, Queen's University at Kingston
    Inventors: Gregory Ross, Walter Szarek, Rahul Vohra
  • Publication number: 20050038117
    Abstract: Methods, compounds, pharmaceutical compositions and kits are described for treating or preventing amyloid- +related disease.
    Type: Application
    Filed: June 18, 2004
    Publication date: February 17, 2005
    Applicants: Neurochem (International) Limited, Queen's University at Kingston, Neurochem, Inc.
    Inventors: Xianqi Kong, Walter Szarek, Francine Gervais
  • Publication number: 20040208875
    Abstract: Therapeutic compounds and methods for inhibiting amyloid deposition in a subject, whatever its clinical setting, are described. Amyloid deposition is inhibited by the administration to a subject of an effective amount of a therapeutic compound comprising an anionic group and a carrier molecule, or a pharmaceutically acceptable salt thereof, such that an interaction between an amyloidogenic protein and a basement membrane constituent is inhibited. Preferred anionic groups are sulfonates and sulfates. Preferred carrier molecules include carbohydrates, polymers, peptides, peptide derivatives, aliphatic groups, alicyclic groups, heterocyclic groups, aromatic groups and combinations thereof.
    Type: Application
    Filed: February 11, 2004
    Publication date: October 21, 2004
    Applicant: Queen's University at Kingston
    Inventors: Robert Kisilevsky, Walter Szarek, Donald Weaver
  • Publication number: 20030108595
    Abstract: Therapeutic compounds and methods for inhibiting amyloid deposition in a subject, whatever its clinical setting, are described. Amyloid deposition is inhibited by the administration to a subject of an effective amount of a therapeutic compound comprising an anionic group and a carrier molecule, or a pharmaceutically acceptable salt thereof, such that an interaction between an amyloidogenic protein and a basement membrane constituent is inhibited. Preferred anionic groups are sulfonates and sulfates. Preferred carrier molecules include carbohydrates, polymers, peptides, peptide derivatives, aliphatic groups, alicyclic groups, heterocyclic groups, aromatic groups and combinations thereof.
    Type: Application
    Filed: April 18, 2002
    Publication date: June 12, 2003
    Applicant: Queen's University at Kingston
    Inventors: Robert Kisilevsky, Walter Szarek, Donald Weaver
  • Publication number: 20010048941
    Abstract: Therapeutic compounds and methods for inhibiting amyloid deposition in a subject, whatever its clinical setting, are described. Amyloid deposition is inhibited by the administration to a subject of an effective amount of a therapeutic compound comprising an anionic group and a carrier molecule, or a pharmaceutically acceptable salt thereof, such that an interaction between an amnyloidogenic protein and a basement membrane constituent is inhibited. Preferred anionic groups are sulfonates and sulfates.
    Type: Application
    Filed: February 9, 2001
    Publication date: December 6, 2001
    Applicant: Queen's University of Kingston
    Inventors: Robert Kisilevsky, Walter Szarek, Donald Weaver
  • Patent number: 5972328
    Abstract: Therapeutic compounds and methods for inhibiting amyloid deposition in a subject, whatever its clinical setting, are described. Amyloid deposition is inhibited by the administration to a subject of an effective amount of a therapeutic compound comprising an anionic group and a carrier molecule, or a pharmaceutically acceptable salt thereof, such that an interaction between an amyloidogenic protein and a basement membrane constituent is inhibited. Preferred anionic groups are sulfonates and sulfates. Preferred carrier molecules include carbohydrates, polymers, peptides, peptide derivatives, aliphatic groups, alicyclic groups, heterocyclic groups, aromatic groups and combinations thereof.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: October 26, 1999
    Assignee: Queen's University at Kingston
    Inventors: Robert Kisilevsky, Walter Szarek, Donald Weaver
  • Patent number: 5858326
    Abstract: In vivo and in vitro methods of increasing amyloid deposition using amyloid-enhancing compounds are described. Methods of forming amyloid fibrils and screening for agents useful in treating amyloidosis are also described. Animals having non-naturally occurring amyloid deposits produced using the amyloid-enhancing compounds even further are described.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: January 12, 1999
    Assignees: Neurochem, Inc., Queen's University at Kingston
    Inventors: Robert Kisilevsky, Walter Szarek, Donald Weaver, Paul Fraser, Xianqi Kong
  • Patent number: 5840294
    Abstract: Therapeutic compounds and methods for inhibiting amyloid deposition in a subject, whatever its clinical setting, are described. Amyloid deposition is inhibited by the administration to a subject of an effective amount of a therapeutic compound comprising an anionic group and a carrier molecule, or a pharmaceutically acceptable salt thereof, such that an interaction between an amyloidogenic protein and a basement membrane constituent is inhibited. Preferred anionic groups are sulfonates and sulfates. Preferred carrier molecules include carbohydrates, polymers, peptides, peptide derivatives, aliphatic groups, alicyclic groups, heterocyclic groups, aromatic groups and combinations thereof.
    Type: Grant
    Filed: October 13, 1995
    Date of Patent: November 24, 1998
    Assignee: Queen's University at Kingston
    Inventors: Robert Kisilevsky, Walter Szarek, Donald Weaver
  • Patent number: 5728375
    Abstract: Therapeutic compounds and methods for inhibiting amyloid deposition in a subject, whatever its clinical setting, are described. Amyloid deposition is inhibited by the administration to a subject of an effective amount of a therapeutic compound comprising an anionic group and a carrier molecule, or a pharmaceutically acceptable salt thereof, such that an interaction between an amyloidogenic protein and a basement membrane constituent is inhibited. Preferred anionic groups are sulfonates and sulfates. Preferred carrier molecules include carbohydrates, polymers, peptides, peptide derivatives, aliphatic groups, alicyclic groups, heterocyclic groups, aromatic groups and combinations thereof.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: March 17, 1998
    Assignee: Queen's University at Kingston
    Inventors: Robert Kisilevsky, Walter Szarek, Donald Weaver
  • Patent number: 5643562
    Abstract: Therapeutic compounds and methods for inhibiting amyloid deposition in a subject, whatever its clinical setting, are described. Amyloid deposition is inhibited by the administration to a subject of an effective amount of a therapeutic compound comprising an anionic group and a carrier molecule, or a pharmaceutically acceptable salt thereof, such that an interaction between an amyloidogenic protein and a basement membrane constituent is inhibited. Preferred anionic groups are sulfonates and sulfates. Preferred carrier molecules include carbohydrates, polymers, peptides, peptide derivatives, aliphatic groups, alicyclic groups, heterocyclic groups, aromatic groups and combinations thereof.
    Type: Grant
    Filed: March 15, 1995
    Date of Patent: July 1, 1997
    Assignee: Queen's University of Kingston
    Inventors: Robert Kisilevsky, Walter Szarek, Donald Weaver