Patents Assigned to GelTex Pharmaceuticals, Inc.
  • Patent number: 6248318
    Abstract: A method for treating hypercholesterolemia in a patient that includes administering to the patient a therapeutically effective amount of a polydiallylamine polymer.
    Type: Grant
    Filed: March 9, 2000
    Date of Patent: June 19, 2001
    Assignee: GelTex Pharmaceuticals, Inc.
    Inventors: Chad Cori Huval, Stephen Randall Holmes-Farley, John S. Petersen, Pradeep K. Dhal
  • Patent number: 6235720
    Abstract: The present invention includes polymerizable monomers comprising an acid-functionalized glycoside moiety. The monomer can have a polymerizable functional group, such as an olefinic bond, to which the acid-functionalized glycoside moiety is attached by a spacer group, for example, an alkylene group, or an alkylene group wherein one or more carbon atoms are substituted by heteroatoms, such as oxygen, nitrogen or sulfur atoms. The present invention also includes polymers comprising pendant acid-functionalized glycoside moieties. The present invention also provides a method for treating a microbial infection in a mammal by administering to the mammal a therapeutically effective amount of a polymer comprising one or more acid-functionalized glycoside moieties.
    Type: Grant
    Filed: June 1, 2000
    Date of Patent: May 22, 2001
    Assignee: GelTex Pharmaceuticals, Inc.
    Inventors: W. Harry Mandeville, III, Venkata R. Garigapati
  • Patent number: 6225355
    Abstract: The invention relates to a method for removing bile salts from a patient in need thereof and compositions use full 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 polymers, or salts and copolymers thereof having amine containing repeat units, with at least one aliphatic alkylating agent and a crosslinking agent.
    Type: Grant
    Filed: March 22, 2000
    Date of Patent: May 1, 2001
    Assignee: GelTex Pharmaceuticals, Inc.
    Inventors: W. Harry Mandeville, III, Stephen Randall Holmes-Farley
  • Patent number: 6203785
    Abstract: The present invention relates to a method for removing bile acids from a patient and certain polymers of use in the method. The method comprises the step of administering to the patient a therapeutically effective amount of a polymer composition which includes a a poly(diallylamine) polymer which is substituted with hydrophobic groups. The hydrophobic groups can be a substituted or unsubstituted, straight chain or branched C3-C24-alkyl group, an aralkyl group or an aryl group.
    Type: Grant
    Filed: December 30, 1996
    Date of Patent: March 20, 2001
    Assignee: GelTex Pharmaceuticals, Inc.
    Inventors: Stephen Randall Holmes-Farley, Pradeep K. Dhal, John S. Petersen
  • Patent number: 6190649
    Abstract: The present invention relates to a method for sequestering bile acids in a patient and to particular polymers for use in the method. The invention further relates to a method for reducing blood cholesterol, treating atherosclerosis, treating hypercholesterolemia and/or reducing plasma lipid content of a mammal. The methods of the invention comprise orally administering to the patient a therapeutically effective amount of a polymer characterized by a polyether backbone and amino or ammonium groups pendant therefrom. The amino nitrogen atoms can be substituted by one or more substituents independently selected from among substituted and unsubstituted, normal, branched and cyclic alkyl groups, and aryl groups. When the polymer comprises pendant ammonium or quaternary ammonium groups, the polymer will be associated with a pharmaceutically acceptable anion.
    Type: Grant
    Filed: April 23, 1999
    Date of Patent: February 20, 2001
    Assignee: GelTex Pharmaceuticals, Inc.
    Inventors: Stephen Randall Holmes-Farley, Chad Cori Huval
  • Patent number: 6187762
    Abstract: The present invention includes polymerizable monomers comprising a fucoside moiety. In one embodiment, the monomer has a polymerizable functional group, such as an olefinic bond, to which the fucoside moiety is attached by a spacer group, for example, an alkylene group, or an alkylene group wherein one or more carbon atoms are substituted by heteroatoms, such as oxygen, nitrogen or sulfur atoms. The present invention also includes polymers comprising one or more fucoside moieties, such as pendant fucoside moieties, which can inhibit or prevent rotavirus infection in a mammal. Such a polymer can comprise, for example, a monomer of the present invention. The polymer can be a homopolymer or a copolymer, and can have, for example, a polyacrylamide, polyacrylate or polystyrene backbone.
    Type: Grant
    Filed: April 5, 1999
    Date of Patent: February 13, 2001
    Assignee: GelTex Pharmaceuticals, Inc.
    Inventors: W. Harry Mandeville, III, John S. Petersen, Venkata R. Garigapati, Thomas X. Neenan
  • Patent number: 6177478
    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: July 22, 1999
    Date of Patent: January 23, 2001
    Assignee: GelTex Pharmaceuticals, Inc.
    Inventors: Stephen Randall Holmes-Farley, W. Harry Mandeville, III
  • Patent number: 6129910
    Abstract: The present invention relates to a method for sequestering bile acids in a patient and to particular polymers for use in the method. The method comprises the step of orally administering to a mammal, such as a human, a therapeutically effective amount of a new class of water-insoluble noncrosslinked amine polymers.The water-insoluble noncrosslinked amine polymer comprises an amine-containing monomer or repeat unit which has one or more substituents bound to an amine nitrogen of the amine polymer. The substituent or substituents which are bound to the amine nitrogens of the amine polymer include a hydrophobic moiety and/or a quaternary amine-containing moiety.
    Type: Grant
    Filed: December 29, 1997
    Date of Patent: October 10, 2000
    Assignee: GelTex Pharmaceuticals, Inc.
    Inventors: Stephen Randall Holmes-Farley, W. Harry Mandeville, III
  • Patent number: 6083497
    Abstract: A method for removing bile salts from a patient that includes administering to the patient a therapeutically effective amount of a non-absorbable polydiallylamine polymers.
    Type: Grant
    Filed: November 5, 1997
    Date of Patent: July 4, 2000
    Assignee: GelTex Pharmaceuticals, Inc.
    Inventors: Chad Cori Huval, Stephen Randall Holmes-Farley, John S. Petersen, Pradeep K. Dhal
  • Patent number: 6083495
    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: Grant
    Filed: September 15, 1997
    Date of Patent: July 4, 2000
    Assignee: GelTex Pharmaceuticals, Inc.
    Inventors: Stephen Randall Holmes-Farley, W. Harry Mandeville, III, George M. Whitesides
  • Patent number: 6066678
    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 an alkylated and crosslinked polymer. The alkylated and crosslinked polymer comprises the reaction product of polymers, or salts and copolymers thereof having amine containing repeat units, with at least one aliphatic alkylating agent and a crosslinking agent.
    Type: Grant
    Filed: September 2, 1999
    Date of Patent: May 23, 2000
    Assignee: GelTex Pharmaceuticals, Inc.
    Inventors: W. Harry Mandeville, III, Stephen Randall Holmes-Farley
  • Patent number: 6060235
    Abstract: The present invention relates to a method of treating a viral infection in an animal, such as a human, by administering to the animal a therapeutically effective amount of a polymer comprising a plurality of pendant hydrophobic groups and a plurality of pendant acid functional groups. The acid functional groups are connected directly to the polymer backbone or via an aliphatic spacer group of 1 to about 20 atoms in length.
    Type: Grant
    Filed: September 19, 1997
    Date of Patent: May 9, 2000
    Assignee: GelTex Pharmaceuticals, Inc.
    Inventors: Thomas X. Neenan, W. Harry Mandeville, III
  • Patent number: 6060517
    Abstract: A method for removing bile salts from a patient by ion exchange by administering to the patient a therapeutically effective amount of one or more highly crosslinked polymers characterized by a repeat unit having the formula ##STR1## or copolymer thereof, where n is an integer; R.sup.1 is H or a C.sub.1 -C.sub.8 alkyl group; M is ##STR2## Z is O, NR.sup.3 R, S, or (CH.sub.2).sub.m ; m=0-10; R.sup.3 is H or a C.sub.1 -C.sub.8 alkyl group; and R.sup.2 is ##STR3## where p=0-10, and each R.sup.4, R.sup.5, and R.sup.6, independently, is H, C.sub.1 -C.sub.8 alkyl group, or an aryl group.
    Type: Grant
    Filed: November 12, 1998
    Date of Patent: May 9, 2000
    Assignee: GelTex Pharmaceuticals, Inc.
    Inventors: W. Harry Mandeville, III, Stephen Randall Holmes-Farley
  • Patent number: 6034129
    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: June 24, 1996
    Date of Patent: March 7, 2000
    Assignee: GelTex Pharmaceuticals, Inc.
    Inventors: W. Harry Mandeville, III, Thomas X. Neenan, Stephen Randall Holmes-Farley
  • Patent number: 6007803
    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: Grant
    Filed: September 19, 1997
    Date of Patent: December 28, 1999
    Assignee: GelTex Pharmaceuticals, Inc.
    Inventors: W. Harry Mandeville, III, Thomas X. Neenan
  • Patent number: 5985938
    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: ##STR1## 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: November 5, 1997
    Date of Patent: November 16, 1999
    Assignee: Geltex Pharmaceuticals, Inc.
    Inventors: Stephen Randall Holmes-Farley, W. Harry Mandeville, III
  • Patent number: 5981693
    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 an alkylated and crosslinked polymer. The alkylated and crosslinked polymer comprises the reaction product of polymers, or salts and copolymers thereof having amine containing repeat units, with at least one aliphatic alkylating agent and a crosslinking agent.
    Type: Grant
    Filed: April 8, 1999
    Date of Patent: November 9, 1999
    Assignee: GelTex Pharmaceuticals, Inc.
    Inventors: W. Harry Mandeville, III, Stephen Randall Holmes-Farley
  • Patent number: 5969090
    Abstract: The present invention relates to a poly(allylamine) polymer and, more generally, a hydrocarbon amine polymer. Preferably, these polymers are crosslinked. The present invention also relates to methods of forming these polymers and methods for their use. Further, the present invention relates to alkylating agents that can be employed to form the polymers and to methods for forming the alkylating agents. Generally, the polymer sequestrant includes a substituent bound to an amine of the polymer. The substituent includes a quaternary amine-containing moiety having one, two or three terminal hydrophobic substituents. A method of preparing quaternary amine-containing alkylating agents includes reacting an unsymmetrical dihalide with a tertiary amine having at least one hydrophobic substituent. A method for binding bile salts of bile acids in a mammal includes orally administering to the mammal a therapeutically-effective amount of the polymer sequestrant.
    Type: Grant
    Filed: November 3, 1998
    Date of Patent: October 19, 1999
    Assignee: GelTex Pharmaceuticals, Inc.
    Inventors: W. Harry Mandeville, III, Stephen Randall Holmes-Farley, John S. Petersen
  • Patent number: 5939537
    Abstract: The present invention includes polymerizable monomers comprising an acid-functionalized glycoside moiety. The monomer can have a polymerizable functional group, such as an olefinic bond, to which the acid-functionalized glycoside moiety is attached by a spacer group, for example, an alkylene group, or an alkylene group wherein one or more carbon atoms are substituted by heteroatoms, such as oxygen, nitrogen or sulfur atoms. The present invention also includes polymers comprising pendant acid-functionalized glycoside moieties. The present invention also provides a method for treating a microbial infection in a mammal by administering to the mammal a therapeutically effective amount of a polymer comprising one or more acid-functionalized glycoside moieties.
    Type: Grant
    Filed: June 25, 1997
    Date of Patent: August 17, 1999
    Assignee: GelTex Pharmaceuticals Inc.
    Inventors: W. Harry Mandeville, III, Venkata R. Garigapati
  • Patent number: 5929184
    Abstract: The present invention relates to polymer compositions and methods of using said compositions for sequestering bile acids in a patient. The polymer compositions of this invention comprise a copolymer characterized by one or more hydrophilic nonamine-containing monomers or repeat units and one or more amine-containing monomers or repeat units. The amine-containing monomers or repeat units of the polymer compositions have one or more substituents bound to a portion of the amine nitrogens. The substituent or substituents which are bound to the amine nitrogens of the polymer composition can include a hydrophobic moiety and/or a quaternary amine-containing moiety. Suitable amine-containing monomers or repeat units include, but are not limited to, for example, vinylamine, allylamine, diallylamine, diallylmethylamine, and ethyleneimine, which are appropriately substituted, as described above.
    Type: Grant
    Filed: December 29, 1997
    Date of Patent: July 27, 1999
    Assignee: GelTex Pharmaceuticals, Inc.
    Inventors: Stephen Randall Holmes-Farley, John S. Petersen