Patents by Inventor Mark D. Erion

Mark D. Erion 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: 8080536
    Abstract: Novel cyclic phosphoramidate prodrugs of drugs of formula I their use in delivery of drugs to the liver, their use in enhancing oral bioavailability, and their method of preparation are described.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: December 20, 2011
    Assignee: Metabasis Therapeutics, Inc.
    Inventors: Mark D. Erion, K. Raja Reddy, Serge H. Boyer
  • Publication number: 20110294758
    Abstract: The present invention provides for novel compounds of Formulas I and II and pharmaceutically acceptable salts and co-crystals thereof which have glucokinsae activator activity. The present invention further provides for pharmaceutical compositions comprising the same as well as methods of treating, preventing, delaying the time to onset or reducing the risk for the development or progression of a disease or condition for which one or more glucokinase activator is indicated, including Type 1 and 2 diabetes, impaired glucose tolerance, insulin resistance and hyperglycemia. The present invention also provides for processes of making the compounds of Formulas I and II, including salts and co-crystals thereof, and pharmaceutical compositions comprising the same.
    Type: Application
    Filed: May 25, 2011
    Publication date: December 1, 2011
    Applicant: Metabasis Therapeutics, Inc.
    Inventors: Feng Tian, Qun Dang, G. Sridhar Prasad, Wenyu Li, Brett C. Bookser, Nicholas Brian Raffaele, Mark D. Erion
  • Publication number: 20110009356
    Abstract: Novel cyclic phosphoramidate prodrugs of drugs of formula I their use in delivery of drugs to the liver, their use in enhancing oral bioavailability, and their method of preparation are described.
    Type: Application
    Filed: September 24, 2010
    Publication date: January 13, 2011
    Applicant: Metabasis Therapeutics, Inc.
    Inventors: Mark D. ERION, K. Raja Reddy, Serge H. Boyer
  • Patent number: 7829552
    Abstract: The present invention relates to compounds of phosphonic acid containing T3 mimetics, stereoisomers, pharmaceutically acceptable salts, co-crystals, and prodrugs thereof and pharmaceutically acceptable salts and co-crystals of the prodrugs, as well as their preparation and uses for preventing and/or treating metabolic diseases such as obesity, NASH, hypercholesterolemia and hyperlipidemia, as well as associated conditions such as atherosclerosis, coronary heart disease, impaired glucose tolerance, metabolic syndromex and diabetes.
    Type: Grant
    Filed: November 19, 2004
    Date of Patent: November 9, 2010
    Assignee: Metabasis Therapeutics, Inc.
    Inventors: Mark D. Erion, Hongjian Jiang, Serge H. Boyer
  • Patent number: 7816345
    Abstract: Novel cyclic phosphoramidate prodrugs of drugs of formula I their use in delivery of drugs to the liver, their use in enhancing oral bioavailability, and their method of preparation are described.
    Type: Grant
    Filed: July 18, 2007
    Date of Patent: October 19, 2010
    Assignee: Metabasis Therapeutics, Inc.
    Inventors: Mark D. Erion, K. Raja Reddy, Serge H. Boyer
  • Publication number: 20100081634
    Abstract: The present invention relates to compounds of phosphonic acid-containing T3 mimetics and monoesters thereof, stereoisomers, pharmaceutically acceptable salts, co-crystals, and prodrugs thereof and pharmaceutically acceptable salts and co-crystals of the prodrugs, as well as their preparation and uses for preventing and/or treating metabolic diseases such as obesity, NASH, hypercholesterolemia and hyperlipidemia, as well as associated conditions such as atherosclerosis, coronary heart disease, impaired glucose tolerance, metabolic syndrome x and diabetes.
    Type: Application
    Filed: May 26, 2006
    Publication date: April 1, 2010
    Applicant: METABASIS THERAPEUTICS, INC.
    Inventors: Mark D. Erion, Hongjian Jiang, Serge H. Boyer
  • Patent number: 7666855
    Abstract: Compounds of Formula I, stereoisomers, and pharmaceutically acceptable salts or prodrugs thereof, their preparation, and their uses for the treatment of hepatitis C viral infection are described:
    Type: Grant
    Filed: October 30, 2006
    Date of Patent: February 23, 2010
    Assignee: Metabasis Therapeutics, Inc.
    Inventors: K. Raja Reddy, Mark D. Erion
  • Publication number: 20090232879
    Abstract: The present invention is directed toward the use of thyromimetic compounds that are thyroid receptor ligands, pharmaceutically acceptable salts thereof, and to prodrugs of these compounds for preventing, treating, or ameliorating fatty liver diseases such as steatosis, non-alcoholic fatty liver disease, and non-alcoholic steatohepatitis.
    Type: Application
    Filed: May 26, 2006
    Publication date: September 17, 2009
    Applicant: Metabasis Therapeutics, Inc.
    Inventors: Edward E. Cable, Mark D. Erion
  • Publication number: 20090197836
    Abstract: A combination therapy of at least one FBPase inhibitor and at least one other antidiabetic agent is disclosed.
    Type: Application
    Filed: August 20, 2007
    Publication date: August 6, 2009
    Inventors: Paul D. van Poelje, Mark D. Erion, Toshihiko Fujiwara
  • Patent number: 7563774
    Abstract: A combination therapy of at least one FBPase inhibitor and at least one other antidiabetic agent is disclosed.
    Type: Grant
    Filed: July 5, 2001
    Date of Patent: July 21, 2009
    Assignee: Metabasis Therapeutics, Inc.
    Inventors: Paul D. van Poelje, Mark D. Erion, Toshihiko Fujiwara
  • Patent number: 7553826
    Abstract: Compounds of Formula I, their preparation and uses are described: wherein: M and V are cis to one another and MH is cytarabine; the 5? oxygen of said cytarabine is attached to the phosphorus; V is 4-pyridyl; and pharmaceutically acceptable prodrugs and salts thereof.
    Type: Grant
    Filed: October 18, 2006
    Date of Patent: June 30, 2009
    Assignee: Metabasis Therapeutics, Inc.
    Inventors: Serge Boyer, Mark D. Erion
  • Publication number: 20090131370
    Abstract: Compounds of Formulae I-XVI, stereoisomers, and pharmaceutically acceptable salts or prodrugs thereof, their preparation, and their uses for the treatment of viral diseases including hepatitis C viral infection, cancer, diabetes, and other diseases are described: formula (I).
    Type: Application
    Filed: July 29, 2005
    Publication date: May 21, 2009
    Applicant: METABASIS THERAPEUTICS , INC.
    Inventors: K. Raja Reddy, Mark D. Erion
  • Publication number: 20090118236
    Abstract: The present invention relates to compounds of phosphonic acid containing T3 mimetics, stereoisomers, pharmaceutically acceptable salts, co-crystals, and prodrugs thereof and pharmaceutically acceptable salts and co-crystals of the prodrugs, as well as their preparation and uses for preventing and/or treating metabolic diseases such as obesity, NASH, hypercholesterolemia and hyperlipidemia, as well as associated conditions such as atherosclerosis, coronary heart disease, impaired glucose tolerance, metabolic syndromex and diabetes.
    Type: Application
    Filed: November 19, 2004
    Publication date: May 7, 2009
    Inventors: Mark D. Erion, Hongjian Jiang, Serge H. Boyer
  • Publication number: 20090118223
    Abstract: Novel 2?-C-methyl nucleoside 5?-monophosphate and 4?-C-methyl nucleoside 5?-monophosphate derivatives, stereoisomers, and pharmaceutically acceptable salts or prodrugs thereof, their preparation, and their uses for the treatment of hepatitis C viral infection are described.
    Type: Application
    Filed: August 14, 2006
    Publication date: May 7, 2009
    Inventors: Mark D. Erion, K. Raja Reddy, Malcolm MacCoss, David B. Olsen
  • Patent number: 7514419
    Abstract: The present invention relates to compounds of phosphonic acid-containing T3 mimetics and monoesters thereof, stereoisomers, pharmaceutically acceptable salts, co-crystals, and prodrugs thereof and pharmaceutically acceptable salts and co-crystals of the prodrugs, as well as their preparation and uses for preventing and/or treating metabolic diseases such as obesity, NASH, hypercholesterolemia and hyperlipidemia, as well as associated conditions such as atherosclerosis, coronary heart disease, impaired glucose tolerance, metabolic syndrome x and diabetes.
    Type: Grant
    Filed: May 26, 2005
    Date of Patent: April 7, 2009
    Assignee: Metabasis Therapeutics, Inc.
    Inventors: Mark D. Erion, Hongjian Jiang, Serge H. Boyer
  • Publication number: 20090028925
    Abstract: The present invention relates to compounds of phosphonic acid-containing T3 mimetics and monoesters thereof, stereoisomers, pharmaceutically acceptable salts, co-crystals, and prodrugs thereof and pharmaceutically acceptable salts and co-crystals of the prodrugs, as well as their preparation and uses for preventing and/or treating metabolic diseases such as obesity, NASH, hypercholesterolemia and hyperlipidemia, as well as associated conditions such as atherosclerosis, coronary heart disease, impaired glucose tolerance, metabolic syndrome x and diabetes.
    Type: Application
    Filed: May 26, 2006
    Publication date: January 29, 2009
    Inventors: Mark D. Erion, Hongjian Jiang, Serge H. Boyer
  • Publication number: 20080125605
    Abstract: Novel cyclic phosphoramidate prodrugs of drugs of formula I their use in delivery of drugs to the liver, their use in enhancing oral bioavailability, and their method of preparation are described.
    Type: Application
    Filed: July 18, 2007
    Publication date: May 29, 2008
    Inventors: Mark D. Erion, K. Raja Reddy, Serge H. Boyer
  • Patent number: 7351399
    Abstract: Prodrugs of formula I, their uses, their intermediates, and their method of manufacture are described: and pharmaceutically acceptable prodrugs and salts thereof.
    Type: Grant
    Filed: June 3, 2005
    Date of Patent: April 1, 2008
    Assignee: Metabasis Therapeutics, Inc.
    Inventors: Mark D. Erion, K. Raja Reddy, Edward D. Robinson, Bheemarao G. Ugarkar
  • Patent number: 7312219
    Abstract: Novel FBPase inhibitors of the formula I and X are useful in the treatment of diabetes and other conditions associated with elevated blood glucose.
    Type: Grant
    Filed: August 6, 2003
    Date of Patent: December 25, 2007
    Assignee: Metabasis Therapeutics, Inc.
    Inventors: Qun Dang, Srinivas Rao Kasibhatla, K. Raja Reddy, Mark D. Erion, M. Rami Reddy, Atul Agurwal
  • Patent number: 7303739
    Abstract: The present invention is directed towards novel cyclic phosph(oramid)ate prodrugs of alcohol-, amine-, and thiol-containing drugs, their preparation, their synthetic intermediates, and their uses. Another aspect of the invention is the use of the prodrugs to treat diseases that benefit from enhanced drug distribution to the liver and like tissues and cells that express cytochrome P450, including hepatitis, cancer, liver fibrosis, malaria, other viral and parasitic infections, and metabolic diseases where the liver is responsible for the overproduction of the biochemical end product, e.g. glucose (diabetes); cholesterol, fatty acids and triglycerides (hyperlipidemia) (atherosclerosis) (obesity). In one aspect, the invention is directed towards the use of the prodrugs to enhance oral drug delivery. In another aspect, the prodrugs are used to prolong pharmacodynamic half-life of the drug. In addition, the prodrug methodology of the current invention is used to achieve sustained delivery of the parent drug.
    Type: Grant
    Filed: May 12, 2004
    Date of Patent: December 4, 2007
    Assignee: Metabasis Therapeutics, Inc.
    Inventors: Mark D. Erion, K. Raja Reddy