Patents Assigned to SPES PHARMACEUTICALS INC.
  • Aqueous compositions of bortezomib
    Patent number: 11986486
    Abstract: Provided herein are novel ready-to-use bortezomib formulations, methods of preparing, and methods of using the same.
    Type: Grant
    Filed: November 1, 2021
    Date of Patent: May 21, 2024
    Assignee: SPES PHARMACEUTICALS INC.
    Inventor: Jianwei Yu
  • INJECTABLE FOSAPREPITANT COMPOSITION
    Publication number: 20220062309
    Abstract: The present application and its embodiments teach stable compositions of fosaprepitant or a pharmaceutically acceptable salt thereof with such compositions lacking polysorbate 80 and containing dual functional excipients of hydrolysis inhibition and solubility enhancement. Further described are methods of preparation of such compositions. Among other advantages of contemplated compositions, fosaprepitant hydrolysis degradation is kept low and the compositions maintain physically and chemically stable for prolonged period.
    Type: Application
    Filed: July 19, 2021
    Publication date: March 3, 2022
    Applicant: Spes Pharmaceuticals Inc.
    Inventors: Jianwei Yu, Yulu Wang
  • Compositions of fosaprepitant and methods of preparation
    Patent number: 11065265
    Abstract: The present application and its embodiments teach stable compositions of fosaprepitant or a pharmaceutically acceptable salt thereof with such compositions lacking polysorbate 80 and containing dual functional excipients of hydrolysis inhibition and solubility enhancement. Further described are methods of preparation of such compositions. Among other advantages of contemplated compositions, fosaprepitant hydrolysis degradation is kept low and the compositions maintain physically and chemically stable for prolonged period.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: July 20, 2021
    Assignee: SPES PHARMACEUTICALS INC.
    Inventors: Jianwei Yu, Yulu Wang