Patents by Inventor Weng Li Yoon

Weng Li Yoon 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: 11963942
    Abstract: A pharmaceutical composition comprises a taxane (e.g., paclitaxel, docetaxel, cabazitaxel, larotaxel, ortataxel, and/or tesetaxel) in a mixture of first and second surfactants. The absorption of the taxane is increased from the pharmaceutical composition is greater than the sum of the absorption of docetaxel from either the first or the second surfactant. The increase in absorption is especially enhanced when the ratio of the first surfactant to the second surfactant in the pharmaceutical composition is between 60:40 and 85:15 by weight, and the total surfactant weight does not exceed 98% of the total weight. Polysorbate 80, polysorbate 20, and caprylocaproyl polyoxylglycerides serve as suitable first surfactants, and polysorbate 80 or polyethyoxylated castor oil serve as suitable second surfactants. The stability of the pharmaceutical composition may be enhanced by further including a stabilizer (e.g., citric acid and/or ascorbic acid).
    Type: Grant
    Filed: October 13, 2020
    Date of Patent: April 23, 2024
    Assignee: Health Hope Pharma Ltd
    Inventors: Denise S. B. Chan, Ming Tsung Lee, Weng Li Yoon, Johnson Yiu-Nam Lau
  • Publication number: 20230321246
    Abstract: Methods for improving bioavailability and solubility of taxanes provided as solids in compressed tablet form are described. Compressed tablets containing a high proportion of a taxane are prepared using an amorphous solid dispersion in combination with a polymer carrier and a surfactant. Oral bioavailability of taxanes following ingestion is high, and supersaturating concentrations of the taxane are maintained in gastric fluids for an extended period of time.
    Type: Application
    Filed: May 22, 2023
    Publication date: October 12, 2023
    Inventors: Weng Li YOON, Ming Tsung LEE, Jiahao LI, Denise So Bik CHAN, Johnson Yiu-Nam LAU
  • Publication number: 20210023042
    Abstract: A pharmaceutical composition comprises a taxane (e.g., paclitaxel, docetaxel, cabazitaxel, larotaxel, ortataxel, and/or tesetaxel) in a mixture of first and second surfactants. The absorption of the taxane is increased from the pharmaceutical composition is greater than the sum of the absorption of docetaxel from either the first or the second surfactant. The increase in absorption is especially enhanced when the ratio of the first surfactant to the second surfactant in the pharmaceutical composition is between 60:40 and 85:15 by weight, and the total surfactant weight does not exceed 98% of the total weight. Polysorbate 80, polysorbate 20, and caprylocaproyl polyoxylglycerides serve as suitable first surfactants, and polysorbate 80 or polyethyoxylated castor oil serve as suitable second surfactants. The stability of the pharmaceutical composition may be enhanced by further including a stabilizer (e.g., citric acid and/or ascorbic acid).
    Type: Application
    Filed: October 13, 2020
    Publication date: January 28, 2021
    Inventors: Denise S.B. Chan, Ming Tsung Lee, Weng Li Yoon, Johnson Yiu-Nam Lau
  • Patent number: 10835511
    Abstract: A pharmaceutical composition comprises a taxane (e.g., paclitaxel, docetaxel, cabazitaxel, larotaxel, ortataxel, and/or tesetaxel) in a mixture of first and second surfactants. The absorption of the taxane is increased from the pharmaceutical composition is greater than the sum of the absorption of docetaxel from either the first or the second surfactant. The increase in absorption is especially enhanced when the ratio of the first surfactant to the second surfactant in the pharmaceutical composition is between 60:40 and 85:15 by weight, and the total surfactant weight does not exceed 98% of the total weight. Polysorbate 80, polysorbate 20, and caprylocaproyl polyoxylglycerides serve as suitable first surfactants, and polysorbate 80 or polyethyoxylated castor oil serve as suitable second surfactants. The stability of the pharmaceutical composition may be enhanced by further including a stabilizer (e.g., citric acid and/or ascorbic acid).
    Type: Grant
    Filed: September 27, 2016
    Date of Patent: November 17, 2020
    Assignee: Athenex HK Innovative Limited
    Inventors: Denise S. B. Chan, Ming Tsung Lee, Weng Li Yoon, Johnson Yiu-Nam Lau
  • Publication number: 20190105397
    Abstract: The inventive subject matter provides compositions and methods for producing high dose, high bioavailability oral taxane compositions. Oral taxanes are prepared as an amorphous solid dispersion, and can be provided in a compressed tablet form. Surprisingly oral bioavailability of taxanes prepared and provided in this matter is high, even in the absence of surfactants.
    Type: Application
    Filed: October 5, 2018
    Publication date: April 11, 2019
    Inventors: Weng Li YOON, Ming Tsung LEE, Jiahao LI, Denise So Bik CHAN, Johnson Yiu-Nam LAU
  • Publication number: 20170087121
    Abstract: A pharmaceutical composition comprises a taxane (e.g., paclitaxel, docetaxel, cabazitaxel, larotaxel, ortataxel, and/or tesetaxel) in a mixture of first and second surfactants. The absorption of the taxane is increased from the pharmaceutical composition is greater than the sum of the absorption of docetaxel from either the first or the second surfactant. The increase in absorption is especially enhanced when the ratio of the first surfactant to the second surfactant in the pharmaceutical composition is between 60:40 and 85:15 by weight, and the total surfactant weight does not exceed 98% of the total weight. Polysorbate 80, polysorbate 20, and caprylocaproyl polyoxylglycerides serve as suitable first surfactants, and polysorbate 80 or polyethyoxylated castor oil serve as suitable second surfactants. The stability of the pharmaceutical composition may be enhanced by further including a stabilizer (e.g., citric acid and/or ascorbic acid).
    Type: Application
    Filed: September 27, 2016
    Publication date: March 30, 2017
    Inventors: Denise S.B. Chan, Ming Tsung Lee, Weng Li Yoon, Johnson Yiu-Nam Lau