Patents by Inventor Chung K. Chu

Chung K. Chu 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: 8673926
    Abstract: Compounds, methods, and compositions for the treatment of infections in or exposure to humans and other host animals of Flaviviridae viruses, including HCV, that includes the administration of an effective amount of a spiro[2.4]heptane as described herein or a pharmaceutically acceptable salt or prodrug thereof, optionally in a pharmaceutically acceptable carrier, are provided. The spiro[2.4]heptane compounds either possess antiviral activity, or are metabolized to a compound that exhibits such activity.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: March 18, 2014
    Assignee: University of Georgia Research Foundation, Inc.
    Inventor: Chung K. Chu
  • Publication number: 20140073606
    Abstract: The present invention relates to 2?-Fluoro-6?-methylene carbocyclic nucleosides, pharmaceutical compositions containing these nucleosides and their use in the treatment or prophylaxis of a number of viral infections and secondary disease states and conditions thereof, especially including Hepatitis B virus (HBV) and secondary disease states and conditions thereof (cirrhosis and liver cancer), Heptatitis C virus (HCV), Herpes Simplex virus I and II (HSV-1 and HSV-2), cytomegalovirus (CMV), Varicella-Zoster Virus (VZV) and Epstein Barr virus (EBV) and secondary cancers which occur thereof (lymphoma, nasopharyngeal cancer, including drug resistant (especially including lamivudine and/or adefovir resistant) and other mutant forms of these viruses, especially HBV.
    Type: Application
    Filed: November 13, 2013
    Publication date: March 13, 2014
    Inventors: Chung K. Chu, Jianing Wang
  • Patent number: 8642602
    Abstract: The present invention relates to the discovery of an epigenetic relay pathway that controls hepatic stellate cell activation and the wound-healing response in fibrogenesis, including fibrogenesis of the injured liver. Methods of inhibiting fibrogenesis, including liver fibrogenesis and secondary disease states and conditions thereof, and in treating liver damage, including cirrhosis of the liver (which may be caused by viruses or chemicals, including alcohol), are aspects of the present invention. The methods utilize certain nucleoside compounds and/or antibodies which are optionally conjugated. Pharmaceutical compositions represent additional aspects of the invention.
    Type: Grant
    Filed: February 2, 2010
    Date of Patent: February 4, 2014
    Assignees: University of Georgia Research Foundation, Inc., University of Newcastle Upon Tyne
    Inventors: Jelena Mann, Chung K. Chu, Derek A. Mann
  • Patent number: 8492362
    Abstract: The present invention relates to prodrug forms of ?-L-1-[5-(E-2-Bromovinyl)-2-(hydroxymethyl)-1,3-dioxolan-4-yl)]uracil (L-BHDU) and their use to treat viral infections of Varicella Zoster Virus, including recurrent VZV (shingles), especially including drug resistant Varicella Zoster Virus and related complications of this viral infection such as rash or post-herpetic neuralgia.
    Type: Grant
    Filed: November 8, 2011
    Date of Patent: July 23, 2013
    Assignee: University of Georgia Research Foundation, Inc.
    Inventor: Chung K. Chu
  • Publication number: 20130157971
    Abstract: 2?-Fluoro-nucleoside compounds are disclosed which are useful in the treatment of hepatitis B infection, hepatitis C infection, HIV and abnormal cellular proliferation, including tumors and cancer. The compounds have the general formulae: wherein Base is a purine or pyrimidine base; R1 is OH, H, OR3, N3, CN, halogen, CF3, lower alkyl, amino, loweralkylamino, di(lower)alkylamino, or alkoxy; R2 is H, phosphate, or a stabilized phosphate prodrug; acyl, or other pharmaceutically acceptable leaving benzyl, a lipid, an amino acid, peptide, or cholesterol; and R3 is acyl, alkyl, phosphate, or other pharmaceutically acceptable leaving group; or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: April 2, 2012
    Publication date: June 20, 2013
    Inventors: RAYMOND F. SCHINAZI, Dennis C. Liotta, Chung K. Chu, J. Jeffrey McAtee
  • Publication number: 20130005677
    Abstract: The present invention relates to 2?-Fluoro-6?-methylene carbocyclic nucleosides, pharmaceutical compositions containing these nucleosides and their use in the treatment or prophylaxis of a number of viral infections and secondary disease states and conditions thereof, especially including Hepatitis B virus (HBV) and secondary disease states and conditions thereof (cirrhosis and liver cancer), Heptatitis C virus (HCV), Herpes Simplex virus I and II (HSV-1 and HSV-2), cytomegalovirus (CMV), Varicella-Zoster Virus (VZV) and Epstein Barr virus (EBV) and secondary cancers which occur thereof (lymphoma, nasopharyngeal cancer, including drug resistant (especially including lamivudine and/or adefovir resistant) and other mutant forms of these viruses.
    Type: Application
    Filed: November 16, 2010
    Publication date: January 3, 2013
    Applicant: University of Georgia Research Foundation, Inc.
    Inventors: Chung K. Chu, Jianing Wang
  • Patent number: 8168583
    Abstract: 2?-Fluoro-nucleoside compounds are disclosed which are useful in the treatment of hepatitis B infection, hepatitis C infection, HIV and abnormal cellular proliferation, including tumors and cancer. The compounds have the general formulae: wherein Base is a purine or pyrimidine base; R1 is OH, H, OR3, N3, CN, halogen, CF3, lower alkyl, amino, loweralkylamino, di(lower)alkylamino, or alkoxy; R2 is H, phosphate, or a stabilized phosphate prodrug; acyl, or other pharmaceutically acceptable leaving benzyl, a lipid, an amino acid, peptide, or cholesterol; and R3 is acyl, alkyl, phosphate, or other pharmaceutically acceptable leaving group; or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: July 27, 2009
    Date of Patent: May 1, 2012
    Assignees: University of Georgia Research Foundation, Inc., Emory University
    Inventors: Raymond F. Schinazi, Dennis C. Liotta, Chung K. Chu, J. Jeffrey McAtee, Junxing Shi, Yongseok Choi, Kyeong Lee, Joon H. Hong
  • Publication number: 20120014962
    Abstract: The present invention relates to the discovery of an epigenetic relay pathway that controls hepatic stellate cell activation and the wound-healing response in fibrogenesis, including fibrogenesis of the injured liver. Methods of inhibiting fibrogenesis, including liver fibrogenesis and secondary disease states and conditions thereof, and in treating liver damage, including cirrhosis of the liver (which may be caused by viruses or chemicals, including alcohol), are aspects of the present invention. The methods utilize certain nucleoside compounds and/or antibodies which are optionally conjugated. Pharmaceutical compositions represent additional aspects of the invention.
    Type: Application
    Filed: February 2, 2010
    Publication date: January 19, 2012
    Applicants: University of Newcastle Upon Tyne, University of Georgia Research Foundation, Inc.
    Inventors: Jelena Mann, Chung K. Chu, Derek A. Mann
  • Patent number: 8076347
    Abstract: (?)-(2S,4S)-1-(2-Hydroxymethyl-1,3-dioxolan-4-yl)cytosine (also referred to as (?)-OddC) or its derivative and its use to treat cancer in animals, including humans.
    Type: Grant
    Filed: March 5, 2007
    Date of Patent: December 13, 2011
    Assignees: University of Georgia Research Foundation, Inc., Yale University
    Inventors: Chung K. Chu, Yung-chi Cheng
  • Publication number: 20110244027
    Abstract: The present invention relates to 2?-Fluoro-6?-methylene carbocyclic nucleosides, pharmaceutical compositions containing these nucleosides and their use in the treatment or prophylaxis of a number of viral infections and secondary disease states and conditions thereof, especially including Hepatitis B virus (HBV) and secondary disease states and conditions thereof (cirrhosis and liver cancer), Heptatitis C virus (HCV), Herpes Simplex virus I and II (HSV-1 and HSV-2), cytomegalovirus (CMV), Varicella-Zoster Virus (VZV) and Epstein Barr virus (EBV) and secondary cancers which occur thereof (lymphoma, nasopharyngeal cancer, including drug resistant (especially including lamivudine and/or adefovir resistant) and other mutant forms of these viruses.
    Type: Application
    Filed: May 13, 2011
    Publication date: October 6, 2011
    Applicant: University of Georgia Research Center
    Inventors: Chung K. Chu, Jianing Wang
  • Publication number: 20100173863
    Abstract: 2?-Fluoro-nucleoside compounds are disclosed which are useful in the treatment of hepatitis B infection, hepatitis C infection, HIV and abnormal cellular proliferation, including tumors and cancer. The compounds have the general formulae: wherein Base is a purine or pyrimidine base; R1 is OH, H, OR3, N3, CN, halogen, CF3, lower alkyl, amino, loweralkylamino, di(lower)alkylamino, or alkoxy; R2 is H, phosphate, or a stabilized phosphate prodrug; acyl, or other pharmaceutically acceptable leaving benzyl, a lipid, an amino acid, peptide, or cholesterol; and R3 is acyl, alkyl, phosphate, or other pharmaceutically acceptable leaving group; or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: July 27, 2009
    Publication date: July 8, 2010
    Inventors: Raymond F. Schinazi, Dennis C. Liotta, Chung K. Chu, J. Jeffrey McAtee, Junxing Shi, Yongseok Choi, Kyeong Lee, Joon H. Hong
  • Patent number: 7662938
    Abstract: A class of 2?-fluoro-nucleoside compounds are disclosed which are useful in the treatment of hepatitis B infection, hepatitis C infection, HIV and abnormal cellular proliferation, including tumors and cancer.
    Type: Grant
    Filed: November 19, 2007
    Date of Patent: February 16, 2010
    Assignees: Emory University, The University of Georgia Research Foundation, Inc.
    Inventors: Raymond F. Schinazi, Dennis C. Liotta, Chung K. Chu, J. Jeffrey McAtee, Junxing Shi, Yongseok Choi, Kyeong Lee, Joon H. Hong
  • Patent number: 7615542
    Abstract: The present invention relates to the use of a dioxolane thymine compound according to the chemical structure of Formula (I): where R1 is H, an acyl group, a C1-C20 alkyl or ether group, a phosphate, diphosphate, triphosphate or phosphodiester group, for use in the treatment of HIV infections which exhibit resistance to 3TC and/or AZT. Preferably, compounds according to the present invention are combined with at least one anti-HIV agent which inhibits HIV by a mechanism other than through the inhibition of thymidine kinase (TK). These agents include those selected from among nuleocoside reverse transcriptase inhibitors (NRTI), non-nucloeoside reverse transcriptase inhibitors, protease inhibitors, fusion inhibitors, among others.
    Type: Grant
    Filed: December 8, 2003
    Date of Patent: November 10, 2009
    Assignees: University of Georgia Research Foundation, Inc., Emory UNiversity
    Inventors: Chung K. Chu, Raymond F. Schinazi
  • Patent number: 7511027
    Abstract: A method for the treatment for hepatitis delta infection in a host, that includes administering an effective amount of a nucleoside or a nucleoside analog that suppresses the expression of the hepatitis B surface or preS1 antigen in the host 100-fold or more relative to pretreatment values in vivo; or to not more than 1 microgram per milliliter in vivo. In a preferred embodiment, the nucleoside is L-FMAU, or a pharmaceutically acceptable salt or prodrug thereof.
    Type: Grant
    Filed: November 22, 2002
    Date of Patent: March 31, 2009
    Assignees: Georgetown University, University of Georgia Research Foundation, Inc.
    Inventors: John L. Casey, Brent E. Korba, Paul J. Cote, John L. Gerin, Bud C. Tennant, Chung K. Chu
  • Publication number: 20080300398
    Abstract: A class of 2?-fluoro-nucleoside compounds are disclosed which are useful in the treatment of hepatitis B infection, hepatitis C infection, HIV and abnormal cellular proliferation, including tumors and cancer.
    Type: Application
    Filed: November 19, 2007
    Publication date: December 4, 2008
    Inventors: Raymond F. Schinazi, Dennis C. Liotta, Chung K. Chu, J. Jeffrey McAtee, Junxing Shi, Yongseok Choi, Kyeong Lee, Joon H. Hong
  • Publication number: 20080171758
    Abstract: (?)-(2S,4S)-1-(2-Hydroxymethyl-1,3-dioxolan-4-yl)cytosine (also referred to as (?)-OddC) or its derivative and its use to treat cancer in animals, including humans.
    Type: Application
    Filed: March 5, 2007
    Publication date: July 17, 2008
    Applicants: University of Georgia Research Foundation Inc, Yale University
    Inventors: Chung K. Chu, Yung-Chi Cheng
  • Patent number: 7307065
    Abstract: A class of 2?-fluoro-nucleoside compounds are disclosed which are useful in the treatment of hepatitis B infection, hepatitis C infection, HIV and abnormal cellular proliferation, including tumors and cancer.
    Type: Grant
    Filed: March 8, 2004
    Date of Patent: December 11, 2007
    Assignees: Emory University, The University of Georgia Research Foundation, Inc.
    Inventors: Raymond F. Schinazi, Dennis C. Liotta, Chung K. Chu, J. Jeffrey McAtee, Junxing Shi, Yongseok Choi, Kyeong Lee, Joon H. Hong
  • Patent number: 7262213
    Abstract: (?)-(2S,4S)-1-(2-Hydroxymethyl-1,3-dioxolan-4-yl)cytosine (also referred to as (?)-OddC) or its derivative and its use to treat cancer in animals, including humans.
    Type: Grant
    Filed: August 22, 2003
    Date of Patent: August 28, 2007
    Assignees: University of Georgia Research Foundation, Inc., Yale University
    Inventors: Chung K. Chu, Yung-Chi Cheng
  • Patent number: 6949521
    Abstract: Pharmaceutical prodrug compositions are provided comprising azide derivatives of drugs which are capable of being converted to the drug in vivo. Azide derivatives of drugs having amine, ketone and hydroxy substituents are converted in vivo to the corresponding drugs, increasing the half-life of the drugs. In addition azide prodrugs are often better able to penetrate the blood-brain barrier than the corresponding drugs. Especially useful are azide derivatives of cordycepin, 2?-F-ara-ddI, AraA, acyclovir, penciclovir and related drugs. Useful azide prodrugs are azide derivatives of therapeutic alicyclic amines, ketones, and hydroxy-substituted compounds, including aralkyl, heterocyclic aralkyl, and cyclic aliphatic compounds, where the amine or oxygen moiety is on the ring, or where the amine or oxygen moiety is on an aliphatic side chain, as well as therapeutic purines and pyrimidines, nucleoside analogs and phosphorylated nucleoside analogs.
    Type: Grant
    Filed: May 4, 2001
    Date of Patent: September 27, 2005
    Assignees: The University of Georgia Research Foundation, Inc., Emory University
    Inventors: Chung K. Chu, Lakshmi P. Kotra, Konstantine Manouilov, Jinfa Du, Raymond Schinazi
  • Patent number: 6949522
    Abstract: The present invention includes compounds and compositions of ?-halonucleosides, as well as methods to treat HIV, HBV or abnormal cellular proliferation comprising administering said compounds or compositions.
    Type: Grant
    Filed: June 24, 2002
    Date of Patent: September 27, 2005
    Assignees: Pharmasset, Inc., The University of Georgia Research Foundation, Inc., Emory University
    Inventors: Michael J. Otto, Junxing Shi, Chung K. Chu, Raymond F. Schinazi, Giuseppe Gumina, Youhoon Chong, Yongseok Choi