Patents Assigned to Institute for Hepatitis and Virus Research
  • Publication number: 20140206666
    Abstract: Pharmaceutical compositions of the invention comprise sulfamoylbenzamide derivative useful as pregenomic RNA encapsidation inhibitors, useful for the treatment of Hepatitis B virus (HBV) infection.
    Type: Application
    Filed: June 29, 2012
    Publication date: July 24, 2014
    Applicants: Philadelphia Helath & Education Corporation d/b/a Drexel University College of Medicine, Institute for Hepatitis and Virus Research
    Inventors: Ju-Tao Guo, Xiaodong Xu, Timothy M. Block
  • Patent number: 8609668
    Abstract: A pharmaceutical composition comprising an effective amount of a compound of formulas (I-III) and a pharmaceutically acceptable carrier. Methods for treating a hepatitis virus in a patient comprising administering an effective amount of the compound of formulas (I-III) are also presented.
    Type: Grant
    Filed: May 4, 2007
    Date of Patent: December 17, 2013
    Assignees: Philadelphia Health & Education Corporation, Institute For Hepatitis and Virus Research
    Inventors: Andrea Cuconati, Timothy M. Block, Xiaodong Xu
  • Publication number: 20130203092
    Abstract: The present invention provides methods, compositions, apparatus, and kits for assessing glycoforms of proteins as a biomarker for disease. A purified recombinant form of lectin is used as a detector molecule to specifically label target sugars expressed in disease states. The high affinity of recombinant lectin allows for automation of assays that would be used in the diagnosis of diseases such as, but not limited to, cancer or liver disease.
    Type: Application
    Filed: February 3, 2012
    Publication date: August 8, 2013
    Applicant: INSTITUTE FOR HEPATITIS AND VIRUS RESEARCH
    Inventors: Patrick Robert ROMANO, Anand MEHTA, Timothy M. Block
  • Publication number: 20110189771
    Abstract: Imino sugars, such as deoxynojirimycin (DNJ), are glucose analogues that selectively inhibit cellular ?-glucosidase I and II (enzymes that process N-linked glycans in glycoprotein) and exhibit broad spectrum antiviral activities against many enveloped viruses. Previously we have reported a novel DNJ derivative, OSL-95II, with antiviral activity and reduced cytotoxicity. In order to develop imino sugars with more potent antiviral activity as well as improved toxicity profile, OSL-95II was modified by diversifying the nitrogen linked alkylated side chain. The antiviral activities were initially tested in bovine viral diarrhea virus (BVDV) infected MDBK cells, yielding several imino sugar derivatives with novel structure and superior antiviral activity and toxicity profile. Furthermore, these new compounds were shown to be active against Dengue virus (DV) and West Nile virus (WNV) infection in BHK cells where potent anti-DV activity having submicromolar EC50 values and SI of greater than 900.
    Type: Application
    Filed: September 2, 2009
    Publication date: August 4, 2011
    Applicant: INSTITUTE FOR HEPATITIS AND VIRUS RESEARCH
    Inventors: Timothy M. Block, Jinhong Chang, Xiaodong Xu
  • Publication number: 20110053141
    Abstract: This invention provides compositions and methods for ultrasensitive detection and quantification of mutant hepatitis B viruses (HBV). The compositions and methods of the invention can be used to detect HBV mutations for diagnostic and prognostic purposes. This invention also provides new application of a TaqMan hydrolysis probe in asymmetric real time PCR and melting curve analysis.
    Type: Application
    Filed: August 24, 2010
    Publication date: March 3, 2011
    Applicant: INSTITUTE FOR HEPATITIS AND VIRUS RESEARCH
    Inventors: Xiangdong Ren, Timothy Block, Hui Nie
  • Publication number: 20090010880
    Abstract: The present invention is directed to compounds, compositions and methods comprising the aminoglycoside moiety represented by Formula II for treating and preventing the spread of positive sense single-stranded RNA envelope viral infections. One embodiment of the present invention uses geneticin or its analogs, including 2-amino-2,7-dideoxy-alpha-D-glycero-D-gluco-heptopyranose, as the antiviral agent. The compounds, compositions and methods of the present invention are applicable to infections resulting from Hepatitis C virus, West Nile virus, Yellow Fever virus, Dengue virus, Bovine Viral Diarrhea virus, Equine Arteritis virus, and/or Sindbis virus.
    Type: Application
    Filed: June 6, 2008
    Publication date: January 8, 2009
    Applicant: Institute for Hepatitis and Virus Research
    Inventors: Alexander V. Birk, Edward J. Dubovi, Hazel H. Szeto