Patents by Inventor Nancy C. Lan

Nancy C. Lan 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: 20130303568
    Abstract: The invention is directed to substituted 2-aminoacetamides represented by formula (II): and to pharmaceutically acceptable salts and prodrugs thereof, wherein the substituents are defined herein. The invention is also directed to the use of substituted 2-aminoacetamides in methods for the treatment of neuronal damage following global and focal ischemia, and for the treatment, prevention or amelioration of pain, anxiety, or manic depression, as anticonvulsants, as antimanic depressants, as local anesthetics, as antiarrhythmics and for the treatment or prevention of diabetic neuropathy.
    Type: Application
    Filed: April 22, 2013
    Publication date: November 14, 2013
    Inventors: Nancy C. LAN, Yan Wang, Sui Xiong Cai
  • Patent number: 8426431
    Abstract: The invention is directed to substituted 2-aminoacetamides represented by formula (II): and to pharmaceutically acceptable salts and prodrugs thereof, wherein the substituents are defined herein. The invention is also directed to the use of substituted 2-aminoacetamides in methods for the treatment of neuronal damage following global and focal ischemia, and for the treatment, prevention or amelioration of pain, anxiety, or manic depression, as anticonvulsants, as antimanic depressants, as local anesthetics, as antiarrhythmics and for the treatment or prevention of diabetic neuropathy.
    Type: Grant
    Filed: January 7, 2011
    Date of Patent: April 23, 2013
    Assignee: Purdue Neuroscience Company
    Inventors: Nancy C. Lan, Yan Wang, Sui Xiong Cai
  • Publication number: 20110269785
    Abstract: The invention is directed to substituted 2-aminoacetamides represented by formula (II): and to pharmaceutically acceptable salts and prodrugs thereof, wherein the substituents are defined herein. The invention is also directed to the use of substituted 2-aminoacetamides in methods for the treatment of neuronal damage following global and focal ischemia, and for the treatment, prevention or amelioration of pain, anxiety, or manic depression, as anticonvulsants, as antimanic depressants, as local anesthetics, as antiarrhythmics and for the treatment or prevention of diabetic neuropathy.
    Type: Application
    Filed: January 7, 2011
    Publication date: November 3, 2011
    Applicant: Purdue Neuroscience Company
    Inventors: Nancy C. Lan, Yan Wang, Sui Xiong Cai
  • Patent number: 7872127
    Abstract: The invention is directed to substituted 2-aminoacetamides represented by formula (II): and to pharmaceutically acceptable salts and prodrugs thereof, wherein the substituents are defined herein. The invention is also directed to the use of substituted 2-aminoacetamides in methods for the treatment of neuronal damage following global and focal ischemia, and for the treatment, prevention or amelioration of pain, as anticonvulsants, as antimanic depressants, as local anesthetics, as antiarrhythmics and for the treatment or prevention of diabetic neuropathy.
    Type: Grant
    Filed: May 28, 2009
    Date of Patent: January 18, 2011
    Assignee: Purdue Neuroscience Company
    Inventors: Nancy C. Lan, Yan Wang, Sui Xiong Cai
  • Patent number: 7652006
    Abstract: The invention relates to novel quinazolines and heterocycles which are antagonists or positive modulators of AMPA receptors, and the use thereof for treating, preventing or ameliorating neuronal loss associated with stroke, global and focal ischemia, CNS trauma, hypoglycemia and surgery, as well as treating or ameliorating neurodegenerative diseases including Alzheimer's disease, amyotrophic lateral sclerosis, Huntington's disease, Parkinson's disease and Down's syndrome, treating, preventing or ameliorating the adverse consequences of the overstimulation of the excitatory amino acids, treating, preventing or ameliorating anxiety, psychosis, convulsions, chronic pain, glaucoma, retinitis, urinary incontinence, muscular spasm and inducing anesthesia, as well as for treating or ameliorating the adverse consequences of excitatory amino acid deficiency such as schizophrenia, myoclonus, Alzheimer's disease and malnutrition and neural maldevelopment, and as cognition and learning enhancers.
    Type: Grant
    Filed: February 6, 2004
    Date of Patent: January 26, 2010
    Assignee: Euro-Celtique S.A.
    Inventors: Ravi Upasani, Sui X Cai, Nancy C Lan, Yan Wang, George Field, David B Fick
  • Publication number: 20090240053
    Abstract: The invention is directed to substituted 2-aminoacetamides represented by formula (II): and to pharmaceutically acceptable salts and prodrugs thereof, wherein the substituents are defined herein. The invention is also directed to the use of substituted 2-aminoacetamides in methods for the treatment of neuronal damage following global and focal ischemia, and for the treatment, prevention or amelioration of pain, as anticonvulsants, as antimanic depressants, as local anesthetics, as antiarrhythmics and for the treatment or prevention of diabetic neuropathy.
    Type: Application
    Filed: May 28, 2009
    Publication date: September 24, 2009
    Applicant: Purdue Neuroscience Company
    Inventors: Nancy C. Lan, Yan Wang, Sui Xiong Cai
  • Publication number: 20080318932
    Abstract: Methods of treating or preventing chronic pain or convulsion are disclosed by administering to an animal a sodium channel blocker and at least one of gabapentin and pregabalin. Also disclosed are pharmaceutical compositions and kits for the treatment or prevention of chronic pain or convulsion.
    Type: Application
    Filed: June 13, 2008
    Publication date: December 25, 2008
    Applicant: Purdue Pharma L.P.
    Inventor: Nancy C. LAN
  • Patent number: 7393872
    Abstract: Methods of treating or preventing chronic pain or convulsion are disclosed by administering to an animal a sodium channel blocker and at least one of gabapentin and pregabalin. Also disclosed are pharmaceutical compositions and kits for the treatment or prevention of chronic pain or convulsion.
    Type: Grant
    Filed: August 21, 2003
    Date of Patent: July 1, 2008
    Assignee: Euro-Celtique S.A.
    Inventor: Nancy C Lan
  • Patent number: 7091210
    Abstract: The invention is directed to substituted 2-aminoacetamides represented by formula (II): and to pharmaceutically acceptable salts thereof, wherein the substituents are defined herein, for use in the treatment or amelioration of pain.
    Type: Grant
    Filed: December 2, 2002
    Date of Patent: August 15, 2006
    Assignee: Purdue Neuroscience Company
    Inventors: Nancy C Lan, Yan Wang, Sui Xiong Cai
  • Patent number: 6800657
    Abstract: Disclosed is a method for treating a disorder responsive to the positive modulation of AMPA receptors in animals suffering therefrom, comprising administering to an animal in need thereof a compound of Formula I: or a pharmaceutically acceptable salt or prodrug thereof, wherein: Y is NH2, NHR, and NHCOR; Z is O and S; and R1, R2, R3, R4, and X are defined herein. These compounds can be used as cognitive enhancers, for the treatment of neurodegenerative diseases, including Alzheimer's disease, amyotrophic lateral sclerosis, Huntington's disease, Parkinson's disease, AIDS associated dementia and Down's syndrome as well as for the treatment of schizophrenia and myoclonus. Also disclosed are pharmaceutical compositions useful for treating disorders responsive to the positive modulation of AMPA receptors, and novel compounds of Formula I.
    Type: Grant
    Filed: July 2, 2003
    Date of Patent: October 5, 2004
    Assignee: Euro-Celtique S.A.
    Inventors: Christopher S. Konkoy, David B. Fick, Sui Xiong Cai, Nancy C. Lan, John F. W. Keana
  • Patent number: 6780853
    Abstract: The invention relates to 3&agr;-hydroxy, 17-(un)substituted derivatives of the androstane series and 3&agr;-hydroxy, 21-substituted derivatives of the pregnane series. These derivatives are capable of acting at a recently identified site on the GRC, thereby modulating brain excitability in a manner that will alleviate stress, anxiety, insomnia, mood disorders that are amenable to GRC-active agents (such as depression) and seizure activity. The steroid derivatives of this invention are those having the general structural Formula: wherein R, R1, R2, R3, R4, R5, R6, R7, R8, R9 and R10 are farther defined herein and the dotted lines are single or double bonds. The structure includes androstanes, pregnanes (R4=methyl), 19-norandrostanes, and norpregnanes (R4=H).
    Type: Grant
    Filed: May 28, 1999
    Date of Patent: August 24, 2004
    Assignee: Euro-Celtique S.A.
    Inventors: Ravindra B. Upasani, David B. Fick, Derk J. Hogenkamp, Nancy C. Lan
  • Publication number: 20040162299
    Abstract: The invention relates to novel quinazolines and heterocycles which are antagonists or positive modulators of AMPA receptors, and the use thereof for treating, preventing or ameliorating neuronal loss associated with stroke, global and focal ischemia, CNS trauma, hypoglycemia and surgery, as well as treating or ameliorating neurodegenerative diseases including Alzheimer's disease, amyotrophic lateral sclerosis, Huntington's disease, Parkinson's disease and Down's syndrome, treating, preventing or ameliorating the adverse consequences of the overstimulation of the excitatory amino acids, treating, preventing or ameliorating anxiety, psychosis, convulsions, chronic pain, glaucoma, retinitis, urinary incontinence, muscular spasm and inducing anesthesia, as well as for treating or ameliorating the adverse consequences of excitatory amino acid deficiency such as schizophrenia, myoclonus, Alzheimer's disease and malnutrition and neural maldevelopment, and as cognition and learning enhancers.
    Type: Application
    Filed: February 6, 2004
    Publication date: August 19, 2004
    Applicant: Euro-Celtique, S.A.
    Inventors: Ravi Upasani, Sui X. Cai, Nancy C. Lan, Yan Wang, George Field, David B. Fick
  • Publication number: 20040097581
    Abstract: Disclosed is a method for treating a disorder responsive to the positive modulation of AMPA receptors in animals suffering therefrom, comprising administering to an animal in need thereof a compound of Formula I: 1
    Type: Application
    Filed: July 2, 2003
    Publication date: May 20, 2004
    Inventors: Christopher S. Konkoy, David B. Fick, Sui Xiong Cai, Nancy C. Lan, John F.W. Keana
  • Publication number: 20040054005
    Abstract: Methods of treating or preventing chronic pain or convulsion are disclosed by administering to an animal a sodium channel blocker and at least one of gabapentin and pregabalin. Also disclosed are pharmaceutical compositions and kits for the treatment or prevention of chronic pain or convulsion.
    Type: Application
    Filed: August 21, 2003
    Publication date: March 18, 2004
    Inventor: Nancy C. Lan
  • Patent number: 6696442
    Abstract: This invention is related to carbocyclic and heterocyclic substituted semicarbazones and thiosemicarbazones represented by Formula I: or a pharmaceutically acceptable salt or prodrug thereof, wherein: Y is oxygen or sulfur; R1, R21, R22 and R23 are independently hydrogen, alkyl, cycloalkyl, alkenyl, alkynyl, haloalkyl, aryl, aminoalkyl, hydroxyalkyl, alkoxyalkyl or carboxyalkyl-82-; or R22 and R23, together with the N, form a heterocycle; A1 and A2 are independently aryl, heteroaryl, saturated or partially unsaturated carbocycle or saturated or partially unsaturated heterocycle, any of which is optionally substituted; X is one or O, S, NR24, CR25R26, C(O), NR24C(O), C(O)NR24, SO, SO2 or a covalent bond; where R24, R25 and R26 are independently hydrogen, alkyl, cycloalkyl, alkenyl, alkynyl, haloalkyl, aryl, aminoalkyl, hydroxyalkyl, alkoxyalkyl or carboxyalkyl.
    Type: Grant
    Filed: June 25, 2002
    Date of Patent: February 24, 2004
    Assignee: Euro-Celtique S.A.
    Inventors: Yan Wang, Sui Xiong Cai, Nancy C. Lan, John F. W. Keana, Victor I. Ilyin
  • Patent number: 6680332
    Abstract: Disclosed is a method for treating a disorder responsive to the positive modulation of AMPA receptors in animals suffering therefrom, comprising administering to an animal in need thereof a compound of Formula I: or a pharmaceutically acceptable salt or prodrug thereof, wherein: Y is NH2, NHR, and NHCOR; Z is O and S; and R1, R2, R3, R4, and X are defined herein. These compounds can be used as cognitive enhancers, for the treatment of neurodegenerative diseases, including Alzheimer's disease, amyotrophic lateral sclerosis, Huntington's disease, Parkinson's disease, AIDS associated dementia and Down's syndrome as well as for the treatment of schizophrenia and myoclonus. Also disclosed are pharmaceutical compositions useful for treating disorders responsive to the positive modulation of AMPA receptors, and novel compounds of Formula I.
    Type: Grant
    Filed: May 20, 2002
    Date of Patent: January 20, 2004
    Assignee: Euro-Celtique S.A.
    Inventors: Christopher S. Konkoy, David B. Fick, Sui Xiong Cai, Nancy C. Lan, John F. W. Keana
  • Publication number: 20030225080
    Abstract: This invention is related to carbocyclic and heterocyclic substituted semicarbazones and thiosemicarbazones represented by Formula I: 1
    Type: Application
    Filed: June 18, 2003
    Publication date: December 4, 2003
    Applicant: Euro-Celtiques S.A.
    Inventors: Yan Wang, Sui Xiong Cai, Nancy C. Lan, John FW Keana, Victor I Ilyin, Eckard Weber
  • Patent number: 6613803
    Abstract: This invention is related to carbocyclic and heterocyclic substituted semicarbazones and thiosemicarbazones represented by Formula I: or a pharmaceutically acceptable salt or prodrug thereof, wherein: Y is oxygen or sulfur; R1, R21, R22 and R23 are independently hydrogen, alkyl, cycloalkyl, alkenyl, alkynyl, haloalkyl, aryl, aminoalkyl, hydroxyalkyl, alkoxyalkyl or carboxyalkyl; or R22 and R23, together with the N, form a heterocycle; A1 and A2 are independently aryl, heteroaryl, saturated or partially unsaturated carbocycle or saturated or partially unsaturated heterocycle, any of which is optionally substituted; X is one or O, S, NR24, CR25R26, C(O), NR24C(O), C(O)NR24, SO, SO2 or a covalent bond; where R24, R25 and R26 are independently hydrogen, alkyl, cycloalkyl, alkenyl, alkynyl, haloalkyl, aryl, aminoalkyl, hydroxyalkyl, alkoxyalkyl or carboxyalkyl.
    Type: Grant
    Filed: October 21, 1999
    Date of Patent: September 2, 2003
    Assignee: Euro-Celtique S.A.
    Inventors: Yan Wang, Sui Xiong Cai, Nancy C. Lan, John F. W. Keana, Victor I. Ilyin, Eckard Weber
  • Publication number: 20030144319
    Abstract: The invention relates to subtype-selective NMDA receptor ligands and the use thereof for treating or preventing neuronal loss associated with stroke, ischemia, CNS trauma, hypoglycemia and surgery, as well as treating neurodegenerative diseases including Alzheimer's disease, amyotrophic lateral sclerosis, Huntington's disease and Down's syndrome, treating or preventing the adverse consequences of the overstimulation of the excitatory amino acids, treating anxiety, psychosis, convulsions, aminoglycoside antibiotics-induced hearing loss, migraine headache, chronic pain, Parkinson's disease, glaucoma, CMV retinitis, urinary incontinence, opioid tolerance or withdrawal, and inducing anesthesia, as well as for enhancing cognition.
    Type: Application
    Filed: November 14, 2002
    Publication date: July 31, 2003
    Inventors: Christopher F. Bigge, Gian Luca Araldi, Sui Xiong Cai, Anthony P. Guzikowski, Donald Lamunyon, Nancy C. Lan, Zhang-Lin Zhou, John F.W. Keana
  • Publication number: 20030130295
    Abstract: The invention is directed to substituted 2-aminoacetamides represented by formula (II): 1
    Type: Application
    Filed: December 2, 2002
    Publication date: July 10, 2003
    Applicant: Euro-Celtique S.A.
    Inventors: Nancy C. Lan, Yan Wang, Sui Xiong Cai