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).
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Publication number: 20250228829Abstract: 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: ApplicationFiled: March 11, 2025Publication date: July 17, 2025Applicant: TaiRx Inc.Inventors: Yi-Wen CHU, Du-Shieng CHIEN
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Publication number: 20230086405Abstract: 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: ApplicationFiled: August 5, 2022Publication date: March 23, 2023Inventors: Yi-Wen CHU, Du-Shieng CHIEN
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Patent number: 10130605Abstract: 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: GrantFiled: January 10, 2018Date of Patent: November 20, 2018Assignee: TAIRX, INC.Inventors: Yi-Wen Chu, Du-Shieng Chien
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Publication number: 20180200217Abstract: 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: ApplicationFiled: January 10, 2018Publication date: July 19, 2018Inventors: Yi-Wen CHU, Du-Shieng CHIEN
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Patent number: 9717721Abstract: 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: GrantFiled: June 2, 2016Date of Patent: August 1, 2017Assignee: TAIRX, INC.Inventors: Yi-Wen Chu, Du-Shieng Chien
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Publication number: 20160354361Abstract: 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: ApplicationFiled: June 2, 2016Publication date: December 8, 2016Inventors: Yi-Wen CHU, Du-Shieng CHIEN
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Patent number: 8466202Abstract: 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: GrantFiled: June 15, 2010Date of Patent: June 18, 2013Assignee: Sunten Phytotech Co., Ltd.Inventors: Du-Shieng Chien, Yi-Wen Chu, Wu-Chang Chuang, Ming-Chung Lee
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Publication number: 20120136157Abstract: 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: ApplicationFiled: February 3, 2012Publication date: May 31, 2012Inventors: Jacques Dumas, William J. Scott, Du-Shieng Chien, Ala Nassar, Wendy Lee, Susan Bjorge, Laszlo L. Musza, Bernd Riedl
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Publication number: 20100256239Abstract: 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: ApplicationFiled: June 15, 2010Publication date: October 7, 2010Inventors: Du-Shieng Chien, Yi-Wen Chu, Wu-Chang Chuang, Ming-Chung Lee
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Patent number: 7767719Abstract: 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: GrantFiled: April 9, 2007Date of Patent: August 3, 2010Assignee: SunTen Phytotech Co., Ltd.Inventors: Du-Shieng Chien, Yi-Wen Chu, Wu-Chang Chuang, Ming-Chung Lee
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Patent number: 7622506Abstract: 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: GrantFiled: April 9, 2007Date of Patent: November 24, 2009Assignee: SunTen Phytotech Co., Ltd.Inventors: Du-Shieng Chien, Yi-Wen Chu, Wu-Chang Chuang, Ming-Chung Lee
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Publication number: 20070238782Abstract: 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: ApplicationFiled: April 9, 2007Publication date: October 11, 2007Inventors: Du-Shieng Chien, Yi-Wen Chu, Wu-Chang Chuang, Ming-Chung Lee
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Publication number: 20070238784Abstract: 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: ApplicationFiled: April 9, 2007Publication date: October 11, 2007Inventors: Du-Shieng Chien, Yi-Wen Chu, Wu-Chang Chuang, Ming-Chung Lee
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Publication number: 20030216446Abstract: 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: ApplicationFiled: February 11, 2003Publication date: November 20, 2003Applicant: BAYER CORPORATIONInventors: Jacques Dumas, William J. Scott, Bernd Riedl, Du-Shieng Chien, Ala Nassar, Wendy Lee, Susan Bjorge, Laszlo L. Musza
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Patent number: 4866083Abstract: 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: GrantFiled: November 6, 1987Date of Patent: September 12, 1989Assignee: University of Iowa Research FoundationInventors: Ronald D. Schoenwald, Du-Shieng Chien
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Patent number: 4705798Abstract: 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: GrantFiled: September 27, 1985Date of Patent: November 10, 1987Assignee: University of Iowa Research FoundationInventors: Ronald D. Schoenwald, Du-Shieng Chien
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Patent number: 4623664Abstract: 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: GrantFiled: October 31, 1985Date of Patent: November 18, 1986Assignee: University of Iowa Research FoundationInventors: Ronald D. Schoenwald, Du-Shieng Chien