Patents by Inventor Andrew Xian Chen

Andrew Xian Chen 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: 8470873
    Abstract: The present invention provides vitamin E succinate (VES)-stabilized compositions, methods for the preparation thereof and methods useful for the in vivo delivery of substantially water insoluble and optionally chemically unstable pharmacologically active agents (such as docetaxel).
    Type: Grant
    Filed: February 1, 2007
    Date of Patent: June 25, 2013
    Assignee: Mast Therapeutics, Inc.
    Inventor: Andrew Xian Chen
  • Publication number: 20130089608
    Abstract: The present invention provides pharmaceutical compositions for controlled release of pharmaceutically active agents, especially those with a high water solubility, high dose, and/or short half-life. In addition, the present application provides methods for preparing and using such pharmaceutical compositions.
    Type: Application
    Filed: June 7, 2012
    Publication date: April 11, 2013
    Applicant: Farnam Companies, Inc.
    Inventors: Andrew Xian Chen, David L. Bledsoe
  • Publication number: 20130079334
    Abstract: Compositions and methods of making the same for in vivo delivery of lixivaptan to a subject in need thereof are described. The composition includes a substantially water-insoluble pharmacologically active agent (e.g., lixivaptan) and a substantially water-insoluble matrix forming material (e.g., a Vitamin E semi-ester), wherein the pharmacologically active agent is dispersed in said matrix forming material, and wherein the composition delivers said substantially water-insoluble pharmacologically active agent upon exposure to physiological medium.
    Type: Application
    Filed: August 24, 2010
    Publication date: March 28, 2013
    Inventors: Hailiang Chen, Andrew Xian Chen, Patricia Frech, Khawla Abu-Izza, Christoph Schmidt
  • Publication number: 20130029918
    Abstract: The present invention provides compositions for delivering highly water-soluble drugs (such as vinca alkaloids) and methods of using such compositions.
    Type: Application
    Filed: June 21, 2012
    Publication date: January 31, 2013
    Applicant: Adventrx Pharmaceuticals, Inc.
    Inventor: Andrew Xian Chen
  • Publication number: 20120316108
    Abstract: The present invention is directed to compositions and methods of preparation of phospholipid depots that are injectable through a fine needle.
    Type: Application
    Filed: June 14, 2012
    Publication date: December 13, 2012
    Applicant: Latitude Pharmaceuticals Inc.
    Inventors: Andrew Xian Chen, Hailiang Chen
  • Publication number: 20120225118
    Abstract: Compositions and methods of making the same for improving the bioavailability of a substantially water-insoluble pharmacologically active agent are described. The composition includes a substantially water-insoluble pharmacologically active agent, and a substantially water-insoluble matrix forming material comprising enzyme digestible or bile soluble nutrients, wherein the substantially water-insoluble pharmacologically active agent is dispersed in a solid matrix and wherein said pharmacologically active agent in said matrix is substantially free of the original crystalline form.
    Type: Application
    Filed: February 23, 2012
    Publication date: September 6, 2012
    Applicant: Latitude Pharmaceuticals Incorporated
    Inventors: Hailiang Chen, Andrew Xian Chen
  • Patent number: 8222268
    Abstract: The present invention provides compositions for delivering highly water-soluble drugs (such as vinca alkaloids) and methods of using such compositions.
    Type: Grant
    Filed: August 17, 2011
    Date of Patent: July 17, 2012
    Assignee: Adventrx Pharmaceuticals, Inc.
    Inventor: Andrew Xian Chen
  • Patent number: 8221792
    Abstract: The present invention provides pharmaceutical compositions for controlled release of pharmaceutically active agents, especially those with a high water solubility, high dose, and/or short half-life. In addition, the present application provides methods for preparing and using such pharmaceutical compositions.
    Type: Grant
    Filed: July 7, 2006
    Date of Patent: July 17, 2012
    Assignee: Farnam Companies, Inc.
    Inventors: Andrew Xian Chen, David L Bledsoe
  • Publication number: 20120046220
    Abstract: The present invention provides a clear depot comprising at least one hydrophilic water-soluble pharmaceutically active agent selected from the group consisting of vancomycin, gentamicin, a pharmaceutically acceptable salt thereof and a mixture thereof, water, a phospholipid, an oil, optionally a pH adjusting agent, and a viscosity modifying agent selected from the group consisting of ethanol, isopropanol, and a mixture thereof, wherein the water present in the depot is no more than about 4 wt % relative to the total weight of the depot and the depot has a pH of between about 3 and about 6, method of making and administering same.
    Type: Application
    Filed: September 23, 2011
    Publication date: February 23, 2012
    Inventors: Hailiang Chen, Andrew Xian Chen, Dushyanth Surakanti, Franklin Okumu
  • Publication number: 20120046310
    Abstract: The present invention provides compositions for delivering highly water-soluble drugs (such as vinca alkaloids) and methods of using such compositions.
    Type: Application
    Filed: August 17, 2011
    Publication date: February 23, 2012
    Applicant: Adventrx Pharmaceuticals, Inc.
    Inventor: Andrew Xian Chen
  • Publication number: 20120016020
    Abstract: A solid dispersion comprising ((1S)-1-((((1S)-1-benzyl-2,3-dioxo-3-(cyclopropylamino)propyl)amino)carbonyl)-3-methylbutyl)carbamic acid 5-methoxy-3-oxapentyl ester made amorphous in the presence of a water-soluble cellulosic polymer has improved storage stability. The solid dispersion also has improved solubility for an improved bioavailability.
    Type: Application
    Filed: July 13, 2011
    Publication date: January 19, 2012
    Applicant: SENJU PHARMACEUTICAL CO., LTD.
    Inventors: Andrew Xian CHEN, John FAN, Masazumi YAMAGUCHI
  • Publication number: 20110237536
    Abstract: The present invention relates to the use of spicamycin derivatives for treatment and/or prevention of pain, including neuropathic pain. The invention further relates to pharmaceutical compositions of spicamycin derivatives suitable for treatment or prevention of pain.
    Type: Application
    Filed: October 9, 2009
    Publication date: September 29, 2011
    Inventors: John R. Didsbury, Kenneth J. Ingold, Linda Goff Jet, Andrew Xian Chen, Hailiang Chen
  • Patent number: 8026250
    Abstract: The present invention provides compositions for delivering highly water-soluble drugs (such as vinca alkaloids) and methods of using such compositions.
    Type: Grant
    Filed: December 10, 2010
    Date of Patent: September 27, 2011
    Assignee: Adventrx Pharmaceuticals, Inc.
    Inventor: Andrew Xian Chen
  • Publication number: 20110223259
    Abstract: The present invention provides antiviral compositions that comprise one or more of an ionic multivalent metal component, a cationic polymer, and a cationic surfactant. The present invention also provides methods for making and using such antiviral compositions.
    Type: Application
    Filed: May 19, 2011
    Publication date: September 15, 2011
    Applicant: Adventrx Pharmaceuticals, Inc.
    Inventor: Andrew Xian Chen
  • Patent number: 7968122
    Abstract: The present invention provides antiviral compositions that comprise one or more of an ionic multivalent metal component, a cationic polymer, and a cationic surfactant. The present invention also provides methods for making and using such antiviral compositions.
    Type: Grant
    Filed: December 3, 2004
    Date of Patent: June 28, 2011
    Assignee: Adventrx Pharmaceuticals, Inc.
    Inventor: Andrew Xian Chen
  • Publication number: 20110082168
    Abstract: The present invention provides compositions for delivering highly water-soluble drugs (such as vinca alkaloids) and methods of using such compositions.
    Type: Application
    Filed: December 10, 2010
    Publication date: April 7, 2011
    Applicant: Adventrx Pharmaceuticals, Inc.
    Inventor: Andrew Xian Chen
  • Patent number: 7871632
    Abstract: The present invention provides compositions for delivering highly water-soluble drugs (such as vinca alkaloids) and methods of using such compositions.
    Type: Grant
    Filed: July 12, 2004
    Date of Patent: January 18, 2011
    Assignee: Adventrx Pharmaceuticals, Inc.
    Inventor: Andrew Xian Chen
  • Publication number: 20100310661
    Abstract: The invention provides formulations for the organoplatinum anticancer drug picoplatin. Self emulsifying compositions, stabilized nanoparticulate compositions, solid dispersions, and nanoparticulate suspensions in oils are provided, along with methods for preparation of the formulations. The formulations can provide improved oral availability of picoplatin relative a to a simple solution of picoplatin such as in water or normal saline solution and can be used in combination therapy.
    Type: Application
    Filed: July 16, 2008
    Publication date: December 9, 2010
    Applicant: Poniard Pharmaceuticals, Inc.
    Inventors: Andrew Xian Chen, Cheni Kwok, Christopher A. Procyshyn
  • Publication number: 20100062988
    Abstract: Sustained release compositions in tablet or multiparticulate forms comprising (a) an active ingredient, (b) a primary sustain release agent, (c) a wax-like agent, and (d) a bulking or spheronizing agent are provided. The compositions are chewable and/or taste masked. Oral dosage forms comprising such compositions and methods for preparing and using such compositions and dosage forms are also provided.
    Type: Application
    Filed: September 4, 2009
    Publication date: March 11, 2010
    Applicant: Farnam Companies, Inc.
    Inventors: Andrew Xian Chen, Patricia D. Kigin, Hai Liang Chen, Jun Fan
  • Publication number: 20080220079
    Abstract: Sustained release spherical or non-spherical pellets comprising (a) an active ingredient (b) a wax-like agent, and (c) a spheronizing agent are provided. Oral dosage forms comprising said pellets and methods for preparing and using such pellets and dosage forms are also provided.
    Type: Application
    Filed: February 29, 2008
    Publication date: September 11, 2008
    Applicant: FARNAM COMPANIES, INC.
    Inventors: Andrew Xian Chen, Patricia D. Kigin