Patents by Inventor Liangxian Cao

Liangxian Cao 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: 20230172915
    Abstract: One aspect described herein includes a method for treating coronavirus 2019 disease (COVID-19) caused by severe respiratory syndrome coronavirus 2 (SARS-CoV-2) by administering an effective amount of a DHODH inhibitor. Another aspect described herein includes a method of treating COVD-19 by administering 4-chlorophenyl (S)-6-chloro-1-(4-methoxyphenyl)-1,3,4,9-tetrahydro-2H-pyrido[3,4-b]indole-2-carboxylate (PTC299), or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: May 7, 2021
    Publication date: June 8, 2023
    Applicant: PTC THERAPEUTICS, INC.
    Inventors: Nikolai A. NARYSHKIN, Jason GRACI, John BAIRD, Joseph COLACINO, Marla L. WEETALL, Liangxian CAO
  • Patent number: 11458126
    Abstract: A method of use for Cpd 1 as an inhibitor of dihydroorotate dehydrogenase (DHODH) function in treating or ameliorating a hematological cancer in a subject in need thereof comprising, administering an effective amount of Cpd 1 to the subject, having the structure: or a form or pharmaceutical composition thereof.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: October 4, 2022
    Assignee: PTC THERAPEUTICS, INC.
    Inventors: Liangxian Cao, Marla Weetall
  • Publication number: 20220152223
    Abstract: One aspect described herein relates to a recombinant adeno-associated virus (rAAV) vector and a method for use thereof or treating Angelman Syndrome. Another aspect described herein is a UBE3A rAAV vector and method for use thereof for treating a UBE3A deficiency, e.g. Angelman syndrome, in humans.
    Type: Application
    Filed: March 20, 2020
    Publication date: May 19, 2022
    Inventors: Antonio ARULANANDAM, Kevin NASH, Edwin WEEBER, Liangxian CAO, Min Jung KIM
  • Publication number: 20220152024
    Abstract: One aspect described herein includes a method for treating sarcoma in a subject in need thereof comprising, administering to the subject an effective amount of a small molecule compound. More particularly, another aspect described herein includes a method for treating sarcoma in a subject in need thereof comprising, administering to the subject an effective amount of the small molecule compound described herein in combination with a chemotherapeutic agent.
    Type: Application
    Filed: March 27, 2020
    Publication date: May 19, 2022
    Inventors: Marla L. Weetall, Liangxian Cao, Josephine Sheedy, Robert Spiegel
  • Publication number: 20220143016
    Abstract: One aspect described herein includes a method for treating a multiple myeloma (MM) in a subject in need thereof comprising, administering to the subject an effective amount of a small molecule compound. More particularly, another aspect described herein includes a method for treating a multiple myeloma in a subject in need thereof comprising, administering to the subject an effective amount of the small molecule compound described herein in combination with a chemotherapeutic agent.
    Type: Application
    Filed: February 26, 2020
    Publication date: May 12, 2022
    Inventors: Marla L. Weetall, Liangxian Cao, Arnold Bolomsky, Heinz Ludwig
  • Publication number: 20220064150
    Abstract: Amine substituted reverse pyrimidine compounds and forms thereof that inhibit the function and reduce the level of B-cell specific Moloney murine leukemia virus integration site 1 (Bmi-1) protein and methods for their use to inhibit Bmi-1 function and reduce the level of Bmi-1 to treat a cancer mediated by Bmi-1 are described herein.
    Type: Application
    Filed: November 10, 2021
    Publication date: March 3, 2022
    Inventors: Chang-Sun Lee, Ramil Baiazitov, Liangxian Cao, Thomas W. Davis, Wu Du, Ronggang Liu, Young-Choon Moon, Steven D. Paget, Hongyu Ren, Nadiya Sydorenko, Richard Gerald Wilde
  • Patent number: 11180483
    Abstract: Amine substituted reverse pyrimidine compounds and forms thereof that inhibit the function and reduce the level of B-cell specific Moloney murine leukemia virus integration site 1 (Bmi-1) protein and methods for their use to inhibit Bmi-1 function and reduce the level of Bmi-1 to treat a cancer mediated by Bmi-1 are described herein.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: November 23, 2021
    Assignee: PTC Therapeutics, Inc.
    Inventors: Chang-Sun Lee, Ramil Baiazitov, Liangxian Cao, Thomas W. Davis, Wu Du, Ronggang Liu, Young-Choon Moon, Steven D. Paget, Hongyu Ren, Nadiya Sydorenko, Richard Gerald Wilde
  • Publication number: 20210236492
    Abstract: A method for treating pancreatic cancer in a subject in need thereof comprising, administering to the subject an effective amount of a tubulin polymerization inhibitor compound is described herein. More particularly, a method for treating pancreatic ductal adenocarcinoma in a subject in need thereof comprising, administering to the subject an effective amount of a substituted reverse pyrimidine tubulin polymerization inhibitor compound alone or in combination with other chemo-therapeutic agents is described herein.
    Type: Application
    Filed: August 17, 2019
    Publication date: August 5, 2021
    Inventors: Marla L. Weetall, Liangxian Cao, Thomas W. Davis, Melissa L. Dumble, Jaime A. Eberle-Singh, Kenneth P. Olive
  • Publication number: 20200253940
    Abstract: A method of use for Cpd 1 as an inhibitor of dihydroorotate dehydrogenase (DHODH) function in treating or ameliorating a hematological cancer in a subject in need thereof comprising, administering an effective amount of Cpd 1 to the subject, having structure (I); or a form or pharmaceutical composition thereof.
    Type: Application
    Filed: August 1, 2018
    Publication date: August 13, 2020
    Inventors: Liangxian Cao, Maria Weetall
  • Publication number: 20200024260
    Abstract: Amine substituted reverse pyrimidine compounds and forms thereof that inhibit the function and reduce the level of B-cell specific Moloney murine leukemia virus integration site 1 (Bmi-1) protein and methods for their use to inhibit Bmi-1 function and reduce the level of Bmi-1 to treat a cancer mediated by Bmi-1 are described herein.
    Type: Application
    Filed: September 26, 2019
    Publication date: January 23, 2020
    Inventors: Chang-Sun Lee, Ramil Baiazitov, Liangxian Cao, Thomas W. Davis, Wu Du, Ronggang Liu, Young-Choon Moon, Steven D. Paget, Hongyu Ren, Nadiya Sydorenko, Richard Gerald Wilde
  • Patent number: 10428050
    Abstract: Amine substituted reverse pyrimidine compounds and forms thereof that inhibit the function and reduce the level of B-cell specific Moloney murine leukemia virus integration site 1 (Bmi-1) protein and methods for their use to inhibit Bmi-1 function and reduce the level of Bmi-1 to treat a cancer mediated by Bmi-1 are described herein.
    Type: Grant
    Filed: November 21, 2013
    Date of Patent: October 1, 2019
    Assignee: PTC THERAPEUTICS, INC.
    Inventors: Chang-Sun Lee, Ramil Baiazitov, Liangxian Cao, Thomas W Davis, Wu Du, Ronggang Liu, Young-choon Moon, Steven D. Paget, Hongyu Ren, Nadiya Sydorenko, Richard Gerald Wilde
  • Patent number: 9493845
    Abstract: The present invention relates to methods for identifying compounds that modulate untranslated region-dependent expression of a target gene. The invention particularly relates to using untranslated regions of a target gene or fragments thereof linked to a reporter gene to identify compounds that modulate untranslated region-dependent expression of a target gene. The methods of the present invention provide a simple, sensitive assay for high-throughput screening of libraries of compounds to identify pharmaceutical leads.
    Type: Grant
    Filed: April 30, 2013
    Date of Patent: November 15, 2016
    Assignee: PTC THERAPEUTICS, INC.
    Inventors: Liangxian Cao, Panayiota Trifillis
  • Patent number: 9476870
    Abstract: The invention relates to the fields of screening assays, compounds, and methods for altering gene expression and protein levels. In particular, the invention includes assays to screen for agents capable of modulating gene expression in a UTR-dependent manner and agents capable of modulating gene expression.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: October 25, 2016
    Assignee: PTC THERAPEUTICS, INC.
    Inventors: Liangxian Cao, Nikolai Naryshkin, Charles Romfo, Matthew C. Pellegrini, Anuradha Roy, Panayiota Trifillis, Christopher R. Trotta
  • Patent number: 9351964
    Abstract: Compounds, such as compounds of Formula (I), that selectively inhibit pathological production of human vascular endothelial growth factor (VEGF) and compositions comprising such Compounds are described. Compounds that inhibit viral replication or the production of viral RNA or DNA or viral protein and compositions comprising such Compounds are described. Also described are methods of reducing VEGF using such Compounds and methods for treating cancer and non-neoplastic conditions involving the administration of such Compounds. Further described are methods of inhibiting viral replication or the production of viral RNA or DNA or viral protein using such Compounds and methods for treating viral infections involving the administration of such Compounds. The Compounds may be administered as a single agent therapy or in combination with one or more additional therapies to a human in need of such treatments.
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: May 31, 2016
    Assignee: PTC Therapeutics, Inc.
    Inventors: Neil Almstead, Tamil Arasu, Soongyu Choi, Liangxian Cao, Jeffrey Allen Campbell, Donald Corson, Thomas W. Davis, Jason D. Graci, Zhengxian Gu, Peter Seongwoo Hwang, William Lennox, Harry H. Miao, Langdon Miller, Young-Choon Moon, Hongyan Qi, Christopher Trotta, Marla L. Weetall
  • Publication number: 20150315182
    Abstract: Amine substituted reverse pyrimidine compounds and forms thereof that inhibit the function and reduce the level of B-cell specific Moloney murine leukemia virus integration site 1 (Bmi-1) protein and methods for their use to inhibit Bmi-1 function and reduce the level of Bmi-1 to treat a cancer mediated by Bmi-1 are described herein.
    Type: Application
    Filed: November 21, 2013
    Publication date: November 5, 2015
    Inventors: Chang-Sun Lee, Ramil Baiazitov, Liangxian Cao, Thomas W Davis, Wu Du, Ronggang Liu, Young-choon Moon, Steven D. Paget, Hongyu Ren, Nadiya Sydorenko, Richard Gerald Wilde
  • Publication number: 20150253304
    Abstract: The invention relates to the fields of screening assays, compounds, and methods for altering gene expression and protein levels. In particular, the invention includes assays to screen for agents capable of modulating gene expression in a UTR-dependent manner and agents capable of modulating gene expression.
    Type: Application
    Filed: May 22, 2015
    Publication date: September 10, 2015
    Applicant: PTC Therapeutics, Inc.
    Inventors: Liangxian Cao, Nikolai Naryshkin, Charles Romfo, Matthew C. Pelligrini, Anuradha Mehta, Panayiota Trifillis, Christopher R. Trotta
  • Patent number: 9068234
    Abstract: The invention relates to the fields of screening assays, compounds, and methods for altering gene expression and protein levels. In particular, the invention includes assays to screen for agents capable of modulating gene expression in a UTR-dependent manner and agents capable of modulating gene expression.
    Type: Grant
    Filed: July 21, 2004
    Date of Patent: June 30, 2015
    Assignee: PTC Therapeutics, Inc.
    Inventors: Liangxian Cao, Anuradha Mehta, Nikolai A. Naryshkin, Matthew C. Pellegrini, Charles M. Romfo, Panayiota Trifillis, Christopher R. Trotta
  • Patent number: 8940896
    Abstract: In accordance with the present invention, tetracyclic caboline derivatives that inhibit the expression of VEGF post-transcriptionally have been identified, and methods for their use provided. In one aspect of the invention, these compounds useful in the inhibition of VEGF production, in the inhibition of angiogenesis, and/or in the treatment of cancer, diabetic retinopathy or exudative macular degeneration are provided. In another aspect of the invention, methods are provided for the inhibition of VEGF production, the inhibition of angiogenesis, and/or the treatment of cancer, diabetic retinopathy or exudative macular degeneration using the compounds of the invention.
    Type: Grant
    Filed: March 15, 2005
    Date of Patent: January 27, 2015
    Assignee: PTC Therapeutics, Inc.
    Inventors: Young-Choon Moon, Liangxian Cao, Nadarajan Tamilarasu, Hongyan Qi, Soongyu Choi, William Joseph Lennox, Donald Thomas Corson
  • Patent number: 8703726
    Abstract: Methods for treating prostate cancer involving the administration of a compound that selectively inhibits pathological production of human vascular endothelial growth factor (VEGF) are described. Methods for treating benign prostatic hyperplasia involving the administration of a compound that selectively inhibits pathological production of human VEGF are also described. The compound may be administered as a single-agent therapy or in combination with one or more additional therapies to a human in need of such treatment.
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: April 22, 2014
    Assignee: PTC Therapeutics, Inc.
    Inventors: Liangxian Cao, Thomas W. Davis, Samit Hirawat, Harry H. Miao, Langdon Miller, Charles M. Romfo, Marla L. Weetall
  • Patent number: 8697662
    Abstract: Methods for treating Kaposi's sarcoma involving the administration of a compound that selectively inhibits pathological production of human VEGF are described. The compound can be administered as a single-agent therapy or in combination with one or more additional therapies to a human in need of such treatment.
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: April 15, 2014
    Assignee: PTC Therapeutics, Inc.
    Inventors: Liangxian Cao, Thomas W. Davis, Samit Hirawat, Harry H. Miao, Langdon Miller, Marla L. Weetall