Patents Assigned to GelTex Pharmaceutical, Inc.
  • Publication number: 20050260236
    Abstract: The present invention provides a tablet comprising a compressed tablet core which comprises at least about 80% by weight of an aliphatic amine polymer. The invention also provides a method of producing a tablet core comprising at least about 80% by weight of an aliphatic amine polymer resin. The method comprises the step of compressing the aliphatic amine polymer to form the tablet core. The tablet core can further include one or more excipients. In this embodiment, the method of producing the tablet core comprises the steps of: (1) hydrating the aliphatic amine polymer to the desired moisture level; (2) blending the aliphatic amine polymer with the excipients in amounts such that the polymer comprises at least about 80% by weight of the resulting blend; and (3) compressing the blend to form the tablet core. The present invention further relates to a coated tablet comprising an aliphatic amine polymer core wherein the coating is a water based coating.
    Type: Application
    Filed: March 31, 2003
    Publication date: November 24, 2005
    Applicant: GelTex Pharmaceuticals, Inc.
    Inventors: Joseph Tyler, John Petersen
  • Publication number: 20040022759
    Abstract: A method for treating a microbial infection in a mammal, such as a human, comprising treating the mammal with a therapeutically effective amount of a polymer comprising an amino group or an ammonium group attached to the polymer backbone via an aliphatic spacer group. The polymer can be a homopolymer or a copolymer. In one embodiment, the polymer is a copolymer comprising a monomer having a pendant ammonium group and a hydrophobic monomer.
    Type: Application
    Filed: February 25, 2003
    Publication date: February 5, 2004
    Applicant: GelTex Pharmaceuticals, Inc.
    Inventors: W. Harry Mandeville, Thomas X. Neenan, Stephen Randall Holmes-Farley
  • Publication number: 20040019113
    Abstract: Disclosed are compounds which have been identified as inhibitors of phosphate transport.
    Type: Application
    Filed: December 20, 2002
    Publication date: January 29, 2004
    Applicant: GelTex Pharmaceuticals, Inc.
    Inventors: Thomas H. Jozefiak, Cecilia M. Bastos, Andrew T. Papoulis, Stephen Randall Holmes-Farley
  • Publication number: 20040019020
    Abstract: Disclosed is a phosphate transport inhibiting compound represented by Structural Formula (I): 1
    Type: Application
    Filed: March 19, 2003
    Publication date: January 29, 2004
    Applicant: GelTex Pharmaceuticals, Inc.
    Inventors: Thomas H. Jozefiak, Cecilia M. Bastos, Chad C. Huval
  • Publication number: 20040014899
    Abstract: The invention relates to a method for removing bile salts from a patient in need thereof and compositions useful in the method. The method comprises administering to the patient a therapeutically effective amount of a salt of an alkylated and crosslinked polymer. The alkylated and crosslinked polymer salt comprises the reaction product of crosslinked polymers, or salts and copolymers thereof having amine containing repeat units, with at least one aliphatic alkylating agent.
    Type: Application
    Filed: October 3, 2002
    Publication date: January 22, 2004
    Applicant: GelTex Pharmaceuticals, Inc.
    Inventors: W. Harry Mandeville, Stephen Randall Holmes-Farley
  • Publication number: 20040009145
    Abstract: A method for treating pathogenic toxins in a mammal, such as a human, comprising treating the mammal with a therapeutically effective amount of a polymer comprising a cationic group attached to the polymer backbone. The polymer can be a homopolymer or a copolymer. In one embodiment, the polymer is a copolymer comprising a monomer having a pendant ammonium group and a hydrophobic monomer.
    Type: Application
    Filed: December 19, 2002
    Publication date: January 15, 2004
    Applicant: GelTex Pharmaceuticals, Inc.
    Inventors: Richard Fitzpatrick, Chad Cori Huval, Caroline Isabelle Bacon Kurtz, W. Harry Mandeville, Thomas X. Neenan
  • Patent number: 6646157
    Abstract: The preparation of a mono-cationic salt of N,N′-bis(2-hydroxybenzyl)-ethylenediamine-N,N′-diacetic acid (HBED) and HBED itself is disclosed. In particular, the invention relates to the hydrolysis of the t-butyl ester of HBED with a weak acid, such as formic acid, to form HBED, and the subsequent reaction with an equimolar amount of a base to form the mono-cationic salt.
    Type: Grant
    Filed: December 21, 2000
    Date of Patent: November 11, 2003
    Assignee: Geltex Pharmaceuticals, Inc.
    Inventor: James M. McKearin
  • Publication number: 20030185789
    Abstract: The invention features a method for treating obesity in a patient by administering to the patient a polymer that has been substituted with one or more groups that inhibit lipases, which are enzymes responsible for the hydrolysis of fat. The invention further relates to the polymers employed in the methods described herein as well as novel intermediates and methods for preparing the polymers.
    Type: Application
    Filed: February 5, 2003
    Publication date: October 2, 2003
    Applicant: GelTex Pharmaceuticals, Inc.
    Inventors: W. Harry Mandeville, Molly Kate Boie, Venkata R. Garigapati
  • Publication number: 20030138397
    Abstract: The present invention relates to a method of inhibiting a toxin in an animal, such as a human, by administering to the animal a therapeutically effective amount of a polymer having a plurality of pendant acid functional groups which are directly attached to the polymer backbone or attached to the polymer backbone by a spacer group. The spacer group can have a length in the range from 0 to about 20 atoms. The toxin is, typically, an exotoxin secreted by a pathogenic microorganism, such as a bacterium.
    Type: Application
    Filed: November 14, 2002
    Publication date: July 24, 2003
    Applicant: GelTex Pharmaceuticals, Inc.
    Inventors: Caroline Isabelle Bacon Kurtz, Richard Fitzpatrick
  • Publication number: 20030133902
    Abstract: Phosphate-binding polymers are provided for removing phosphate from the gastrointestinal tract. The polymers are orally administered, and are useful for the treatment of hyperphosphatemia.
    Type: Application
    Filed: December 17, 2002
    Publication date: July 17, 2003
    Applicant: GelTex Pharmaceuticals, Inc.
    Inventors: Stephen Randall Holmes-Farley, W. Harry Mandeville, George M. Whitesides
  • Patent number: 6593366
    Abstract: A method for treating a microbial infection in a mammal, such as a human, comprising treating the mammal with a therapeutically effective amount of a polymer comprising an amino group or an ammonium group attached to the polymer backbone via an aliphatic spacer group. The polymer can be a homopolymer or a copolymer. In one embodiment, the polymer is a copolymer comprising a monomer having a pendant ammonium group and a hydrophobic monomer.
    Type: Grant
    Filed: February 21, 2002
    Date of Patent: July 15, 2003
    Assignee: GelTex Pharmaceuticals, Inc.
    Inventors: W. Harry Mandeville, III, Thomas X. Neenan, Stephen Randall Holmes-Farley
  • Patent number: 6572850
    Abstract: The invention features a method for treating obesity in a patient by administering to the patient a polymer that has been substituted with one or more groups that inhibit lipases, which are enzymes responsible for the hydrolysis of fat. The invention further relates to the polymers employed in the methods described herein as well as novel intermediates and methods for preparing the polymers.
    Type: Grant
    Filed: November 16, 2000
    Date of Patent: June 3, 2003
    Assignee: GelTex Pharmaceuticals, Inc.
    Inventors: W. Harry Mandeville, III, Molly Kate Boie, Venkata R. Garigapati
  • Patent number: 6565895
    Abstract: The invention relates to the unexpected discovery that bismuth-containing compounds are effective in the treatment of oral mucositis in a mammal. Thus, the invention relates, in one aspect to a method of treating oral mucositis comprising administering an effective amount of a pharmaceutically acceptable bismuth-containing compound, such as a bismuth salt or bismuth complex. In a preferred embodiment, the bismuth compound is an organic or inorganic salt such as, bismuth subsalicylate, bismuth subgallate, bismuth aluminate, bismuth citrate, bismuth subcitrate, bismuth carbonate, bismuth subcarbonate, tripotassium dicitrato bismuthate, bismuth nitrate, bismuth subnitrate, bismuth tartrate and mixtures thereof, preferably, bismuth subsalicylate and bismuth subgallate.
    Type: Grant
    Filed: June 8, 2001
    Date of Patent: May 20, 2003
    Assignee: GelTex Pharmaceuticals, Inc.
    Inventors: Philip J. Goddard, Jeffrey D. Klinger, Pradeep K. Dhal, W. Harry Mandeville, III, Richard J. Fitzpatrick, Thomas X. Neenan
  • Patent number: 6566407
    Abstract: A method for reducing oxalate levels in a patient that includes administering to the patient a therapeutically effective amount of non-absorbable amine polymers such as a polymer characterized by a repeat unit having the formula: and salts and copolymers thereof, where n is a positive integer and x is zero or an integer between 1 and about 4.
    Type: Grant
    Filed: June 26, 2001
    Date of Patent: May 20, 2003
    Assignee: GelTex Pharmaceuticals, Inc.
    Inventors: Stephen Randall Holmes-Farley, W. Harry Mandeville, III
  • Publication number: 20030086898
    Abstract: A method for removing bile salts from a patient that includes administering to the patient a therapeutically effective amount of a non-absorbable amine polymers characterized by a repeat unit having the formula: 1
    Type: Application
    Filed: May 29, 2002
    Publication date: May 8, 2003
    Applicant: GelTex Pharmaceuticals, Inc.
    Inventors: Stephen Randall Holmes-Farley, W. Harry Mandeville, Steven K. Burke, Dennis I. Goldberg
  • Patent number: 6558657
    Abstract: The invention features a method for treating obesity in a patient by administering to the patient a polymer that has been substituted with one or more groups that inhibit lipases, which are enzymes responsible for the hydrolysis of fat. The invention further relates to the polymers employed in the methods described herein as well as novel intermediates and methods for preparing the polymers.
    Type: Grant
    Filed: November 16, 2000
    Date of Patent: May 6, 2003
    Assignee: GelTex Pharmaceuticals, Inc.
    Inventors: W. Harry Mandeville, III, Molly Kate Boie, Venkata R. Garigapati
  • Publication number: 20030064963
    Abstract: Disclosed is a phenyl boronic acid compound represented by Structural Formula (I): 1
    Type: Application
    Filed: June 27, 2002
    Publication date: April 3, 2003
    Applicant: GelTex Pharmaceuticals, Inc.
    Inventors: Stephen Randall Holmes-Farley, W. Harry Mandeville, Pradeep K. Dhal, Chad Cori Huval, Xinhua Li
  • Publication number: 20030059399
    Abstract: Disclosed are polymers comprising one or more phenyl boronate ester, boronamide or boronate thioester groups.
    Type: Application
    Filed: June 27, 2002
    Publication date: March 27, 2003
    Applicant: GelTex Pharmaceuticals, Inc.
    Inventors: Stephen Randall Holmes-Farley, W. Harry Mandeville, Pradeep K. Dhal, Chad Cori Huval, Xinhua Li, Steven Craig Polomoscanik
  • Publication number: 20030049226
    Abstract: The invention relates to a method for treating Syndrome X, or inhibiting the onset of symptoms of Syndrome X in a patient, and includes administering a therapeutically effective amount of a salt of at least one alkylated and cross-linked polymer, or a copolymer thereof, the polymer salt formed as a product of the reaction of one or more polymers, or salts and copolymers thereof, having a repeat unit that is essentially: 1
    Type: Application
    Filed: April 17, 2002
    Publication date: March 13, 2003
    Applicant: GelTex Pharmaceuticals, Inc. Waltham, MA
    Inventors: Steven K. Burke, Joanne M. Donovan
  • Publication number: 20030039627
    Abstract: A method for treating gout and/or reducing serum uric acid levels in a patient is disclosed that includes administering to the patient a therapeutically effective amount of an amine polymer, for example, an aliphatic amine polymer. In one embodiment, the polymer binds to uric acid or a precursor thereof. Examples of polymers useful in an embodiment of the invention include sevelamer hydrochloride and colesevelam.
    Type: Application
    Filed: April 17, 2002
    Publication date: February 27, 2003
    Applicant: GelTex Pharmaceutical, Inc.
    Inventors: Stephen Randall Holmes-Farley, Steven K. Burke