Patents by Inventor Du-Shieng Chien

Du-Shieng Chien 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: 20230086405
    Abstract: Formulations with enhanced SN-38 solubility and oral absorption. In one embodiment, a formulation or a pharmaceutical composition comprises (a) 7-Ethyl-10-hydroxy-camptothecin (SN-38); and (b) a mixture of pharmaceutically acceptable excipients comprising (i) N-Methylpyrrolidone; and (ii) Vitamin E TPGS or a copolymer, the copolymer being 50/50 poly(lactic-co-glycolic acid), or 75/25 poly(lactic-co-glycolic acid) (PLGA); with the provision that if the VitE TPGS is present, the mixture of the excipients further comprises a polymer selected from the group consisting of Hydroxypropyl cellulose, Hydroxypropyl methylcellulose, VP/VAc copolymer 60/40, poloxamer 407, and Lauroyl Macrogol-32 glycerides; wherein the pharmaceutical composition contains no water, is in a liquid or a gel form, and the SN-38 is dissolved in the mixture of the excipients without precipitation.
    Type: Application
    Filed: August 5, 2022
    Publication date: March 23, 2023
    Inventors: Yi-Wen CHU, Du-Shieng CHIEN
  • Patent number: 10130605
    Abstract: Compositions for use in treating and/or alleviating a symptom of inflammatory bowel disease, colitis, and/or enterocolitis in a subject in need thereof are disclosed. The composition comprises a therapeutically effective amount of an anthraquinone derivative or a pharmaceutically acceptable salt thereof; and a pharmaceutically acceptable vehicle. In one embodiment, the composition comprises diacerein. Also disclosed is a first composition comprising an anthraquinone derivative selected from the group consisting of diacerein, aloe-emodin, emodin, and rhein, and a first pharmaceutically acceptable vehicle; and a second composition comprising mesalazine, and a second pharmaceutically acceptable vehicle, in combination for use in treating and/or alleviating a symptom of inflammatory bowel disease, colitis, and/or enterocolitis.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: November 20, 2018
    Assignee: TAIRX, INC.
    Inventors: Yi-Wen Chu, Du-Shieng Chien
  • Publication number: 20180200217
    Abstract: Compositions for use in treating and/or alleviating a symptom of inflammatory bowel disease, colitis, and/or enterocolitis in a subject in need thereof are disclosed. The composition comprises a therapeutically effective amount of an anthraquinone derivative or a pharmaceutically acceptable salt thereof; and a pharmaceutically acceptable vehicle. In one embodiment, the composition comprises diacerein. Also disclosed is a first composition comprising an anthraquinone derivative selected from the group consisting of diacerein, aloe-emodin, emodin, and rhein, and a first pharmaceutically acceptable vehicle; and a second composition comprising mesalazine, and a second pharmaceutically acceptable vehicle, in combination for use in treating and/or alleviating a symptom of inflammatory bowel disease, colitis, and/or enterocolitis.
    Type: Application
    Filed: January 10, 2018
    Publication date: July 19, 2018
    Inventors: Yi-Wen CHU, Du-Shieng CHIEN
  • Patent number: 9717721
    Abstract: Aryl-quinolin derivatives for use in inhibiting vasculogenic mimicry, treating diseases characterized by abnormal vascular morphology or function and/or by the presence of vasculogenic mimicry in a subject in need thereof are disclosed. In one embodiment of the invention, the compounds are for use in treating metastatic tumor, hyperproliferative, or angiogenic diseases. In another embodiment of the invention, the compound for use may combine an additional therapeutic agent such as anti-cancer agents, anti-inflammatory agents, anti-proliferative agents, anti-hormonal agents, or any combination thereof for use.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: August 1, 2017
    Assignee: TAIRX, INC.
    Inventors: Yi-Wen Chu, Du-Shieng Chien
  • Publication number: 20160354361
    Abstract: Aryl-quinolin derivatives for use in inhibiting vasculogenic mimicry, treating diseases characterized by abnormal vascular morphology or function and/or by the presence of vasculogenic mimicry in a subject in need thereof are disclosed. In one embodiment of the invention, the compounds are for use in treating metastatic tumor, hyperproliferative, or angiogenic diseases, in another embodiment of the invention, the compound for use may combine an additional therapeutic agent such as anti-cancer agents, anti-inflammatory agents, anti-proliferative agents, anti-hormonal agents, or any combination thereof for use.
    Type: Application
    Filed: June 2, 2016
    Publication date: December 8, 2016
    Inventors: Yi-Wen CHU, Du-Shieng CHIEN
  • Patent number: 8466202
    Abstract: This invention relates compositions containing compounds of formula (I) below: Each of R1, R2, R3, R4, R5, R6, R7, and R8 is defined in the specification.
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: June 18, 2013
    Assignee: Sunten Phytotech Co., Ltd.
    Inventors: Du-Shieng Chien, Yi-Wen Chu, Wu-Chang Chuang, Ming-Chung Lee
  • Publication number: 20120136157
    Abstract: This invention relates to new aryl ureas and methods for their synthesis. The inventive compounds are useful in the treatment of (i) raf mediated diseases, for example, cancer, (ii) p38 mediated diseases such as inflammation and osteoporosis, and (iii) VEGF mediated diseases such as angiogenesis disorders.
    Type: Application
    Filed: February 3, 2012
    Publication date: May 31, 2012
    Inventors: Jacques Dumas, William J. Scott, Du-Shieng Chien, Ala Nassar, Wendy Lee, Susan Bjorge, Laszlo L. Musza, Bernd Riedl
  • Publication number: 20100256239
    Abstract: This invention relates compositions containing compounds of formula (I) below: Each of R1, R2, R3, R4, R5, R6, R7, and R8 is defined in the specification.
    Type: Application
    Filed: June 15, 2010
    Publication date: October 7, 2010
    Inventors: Du-Shieng Chien, Yi-Wen Chu, Wu-Chang Chuang, Ming-Chung Lee
  • Patent number: 7767719
    Abstract: This invention relates compositions containing compounds of formula (I) below: Each of R1, R2, R3, R4, R5, R6, R7, and R8 is defined in the specification.
    Type: Grant
    Filed: April 9, 2007
    Date of Patent: August 3, 2010
    Assignee: SunTen Phytotech Co., Ltd.
    Inventors: Du-Shieng Chien, Yi-Wen Chu, Wu-Chang Chuang, Ming-Chung Lee
  • Patent number: 7622506
    Abstract: This invention relates to compositions containing a compound of formula (I) shown below: Each variable is defined in the specification. Also disclosed are methods of using these compositions to treat acne, psoriasis, and infective skin ulcer.
    Type: Grant
    Filed: April 9, 2007
    Date of Patent: November 24, 2009
    Assignee: SunTen Phytotech Co., Ltd.
    Inventors: Du-Shieng Chien, Yi-Wen Chu, Wu-Chang Chuang, Ming-Chung Lee
  • Publication number: 20070238782
    Abstract: This invention relates to compositions containing a compound of formula (I) shown below: Each variable is defined in the specification. Also disclosed are methods of using these compositions to treat acne, psoriasis, and infective skin ulcer.
    Type: Application
    Filed: April 9, 2007
    Publication date: October 11, 2007
    Inventors: Du-Shieng Chien, Yi-Wen Chu, Wu-Chang Chuang, Ming-Chung Lee
  • Publication number: 20070238784
    Abstract: This invention relates compositions containing compounds of formula (I) below: Each of R1, R2, R3, R4, R5, R6, R7, and R8 is defined in the specification.
    Type: Application
    Filed: April 9, 2007
    Publication date: October 11, 2007
    Inventors: Du-Shieng Chien, Yi-Wen Chu, Wu-Chang Chuang, Ming-Chung Lee
  • Publication number: 20030216446
    Abstract: This invention relates to new aryl ureas and methods for their synthesis. The inventive compounds are useful in the treatment of (i) raf mediated diseases, for example, cancer, (ii) p38 mediated diseases such as inflammation and osteoporosis, and (iii) VEGF mediated diseases such as angiogenesis disorders.
    Type: Application
    Filed: February 11, 2003
    Publication date: November 20, 2003
    Applicant: BAYER CORPORATION
    Inventors: Jacques Dumas, William J. Scott, Bernd Riedl, Du-Shieng Chien, Ala Nassar, Wendy Lee, Susan Bjorge, Laszlo L. Musza
  • Patent number: 4866083
    Abstract: An oxazolidine derivative of phenylephrine, and the non-toxic pharmaceutically acceptable salt forms thereof. The prodrug is much quicker absorbed across the cornea of the eye, does not induce the same unwanted side effects as phenylephrine, and can produce the same mydriatic effect as phenylephrine at dosage levels of approximately one-tenth the level of phenylephrine.
    Type: Grant
    Filed: November 6, 1987
    Date of Patent: September 12, 1989
    Assignee: University of Iowa Research Foundation
    Inventors: Ronald D. Schoenwald, Du-Shieng Chien
  • Patent number: 4705798
    Abstract: An oxazolidine derivative of phenylephrine, and the non-toxic pharmaceuticlaly acceptable salt forms thereof. The prodrug is much quicker absorbed across the cornea of the eye, does not induce the same unwanted side effects as phenylephrine, and can produce the same mydriatic effect as phenylephrine at dosage levels of approximately one-tenth the level of phenylephrine.
    Type: Grant
    Filed: September 27, 1985
    Date of Patent: November 10, 1987
    Assignee: University of Iowa Research Foundation
    Inventors: Ronald D. Schoenwald, Du-Shieng Chien
  • Patent number: 4623664
    Abstract: An oil suspension, preferably sesame seed oil suspension, of the base form of phenylephrine as an opthalmic medicament. Surprisingly, the base form of phenylephrine is much quicker absorbed into the eye than the conventional acid salt form. As a result, lower dosage levels can be used to achieve the same mydriatic effect, thus reducing the risk of adverse side effects from systemic absorption.
    Type: Grant
    Filed: October 31, 1985
    Date of Patent: November 18, 1986
    Assignee: University of Iowa Research Foundation
    Inventors: Ronald D. Schoenwald, Du-Shieng Chien