Patents by Inventor Dong Xia

Dong Xia 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: 12151999
    Abstract: The present application discloses small molecule compounds having a naphthylamine structure and an application thereof. In the present application, the structure of a compound having a structure as shown in general formula (I) is as shown in the drawing. The compound and the pharmaceutically acceptable salt, stereoisomer, solvate or prodrug thereof that are provided by the present application or the pharmaceutical composition provided by the present application can selectively induce autophagy in damaged mitochondria without affecting or only weakly affecting normal mitochondria, and further have superior metabolic stability and pharmacokinetic properties, lower toxicity, and better druggability.
    Type: Grant
    Filed: March 15, 2024
    Date of Patent: November 26, 2024
    Assignee: Hangzhou PhecdaMed Co., Ltd.
    Inventors: Hongguang Xia, Mengyang Fan, Xufeng Cen, Xiaoyan Xu, Ronghai Wu, Dong Liu, Zhen Tian
  • Publication number: 20240327486
    Abstract: Provided herein are IL-2 muteins, IL-2 mutein Fc-fusion molecules, anti-IL-2 antibodies, and complexes comprising an anti IL-2 antibody bound to an IL-2 cytokine that preferentially expand and activate T regulatory cells and are amenable to large scale production. Also provided herein are variant human IgG1 Fc molecules lacking or with highly reduced effector function and high stability despite lacking glycosylation at N297. Also provided herein are linker peptides that are glycosylated when expressed in mammalian cells. Also provided herein are methods of making and using the compositions of the present invention.
    Type: Application
    Filed: April 5, 2024
    Publication date: October 3, 2024
    Applicant: Amgen Inc.
    Inventors: Eric Alan BUTZ, Christy Ann THOMSON, Marc Alain GAVIN, Ian Nevin FOLTZ, Dong XIA, Dina N. ALCORN, Randal Robert KETCHEM, Ai Ching LIM, Kathy MANCHULENKO, Laura SEKIROV, Kelly Ann BERRY, Cyr Clovis Chua DE IMUS, Neeraj Jagdish AGRAWAL, Gunasekaran KANNAN, Li LI
  • Publication number: 20240327340
    Abstract: The present application discloses small molecule compounds having a naphthylamine structure and an application thereof. In the present application, the structure of a compound having a structure as shown in general formula (I) is as shown in the drawing. The compound and the pharmaceutically acceptable salt, stereoisomer, solvate or prodrug thereof that are provided by the present application or the pharmaceutical composition provided by the present application can selectively induce autophagy in damaged mitochondria without affecting or only weakly affecting normal mitochondria, and further have superior metabolic stability and pharmacokinetic properties, lower toxicity, and better druggability.
    Type: Application
    Filed: September 20, 2022
    Publication date: October 3, 2024
    Inventors: Hongguang XIA, Mengyang FAN, Xufeng CEN, Xiaoyan XU, Ronghai WU, Dong LIU, Zhen TIAN
  • Publication number: 20240279333
    Abstract: The disclosure provides a tetra-specific antibody monomer having a N-terminal and a C-terminal, comprising in tandem from the N-terminal to the C-terminal, a first scFv domain at the N-terminal, a Fab domain, a Fc domain, a second scFv domain, and a third scFv at the C-terminal, wherein the first scFv domain, the Fab domain, the second scFv domain, and the third scFv domain each has a binding specificity against a different antigen. In one embodiment, the antigen is a tumor antigen, an immune signaling antigen, or a combination thereof. Multi-specific antibodies comprising the disclosed tetra-specific antibodies are also provided.
    Type: Application
    Filed: August 30, 2023
    Publication date: August 22, 2024
    Inventors: Yi ZHU, Ole OLSEN, Dong XIA, David JELLYMAN, Katrina BYKOVA, Anne-Marie K. ROUSSEAU, Bill BRADY, Blair RENSHAW, Brian KOVACEVICH, Yu LIANG, Zeren GAO
  • Publication number: 20240254078
    Abstract: The present application discloses small molecule compounds having a naphthylamine structure and an application thereof. In the present application, the structure of a compound having a structure as shown in general formula (I) is as shown in the drawing. The compound and the pharmaceutically acceptable salt, stereoisomer, solvate or prodrug thereof that are provided by the present application or the pharmaceutical composition provided by the present application can selectively induce autophagy in damaged mitochondria without affecting or only weakly affecting normal mitochondria, and further have superior metabolic stability and pharmacokinetic properties, lower toxicity, and better druggability.
    Type: Application
    Filed: March 15, 2024
    Publication date: August 1, 2024
    Inventors: Hongguang XIA, Mengyang FAN, Xufeng CEN, Xiaoyan XU, Ronghai WU, Dong LIU, Zhen TIAN
  • Patent number: 12029761
    Abstract: The application provides guidance and navigation control (GNC) proteins. In one embodiment, the guidance and navigation control (GNC) protein, comprising a binding domain for a T cell activating receptor, a binding domain for a tumor associated antigen, a bind domain for an immune checkpoint receptor, and a binding domain for a T cell co-stimulating receptor. The binding domain for the tumor associated antigen is not adjacent to the binding domain for the T cell co-stimulating receptor. In one embodiment, the binding domain for the T cell activating receptor is adjacent to the binding domain for the tumor associated antigen (TAA).
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: July 9, 2024
    Assignee: SYSTIMMUNE, INC.
    Inventors: Yi Zhu, Ole Olsen, Dong Xia, David Jellyman, Katrina Bykova, Anne-Marie Rousseau, Bill Brady, Blair Renshaw, Brian Kovacevich, Yu Liang, Camilla Wang, Zeren Gao, Hui Huang
  • Patent number: 11987635
    Abstract: The application provides anti-4-1BB monoclonal antibodies, antigen binding portions thereof, therapeutic compositions thereof and/or nucleic acid encoding the same, and their use to upregulate the function of T-cells to enhance cell-mediated immune responses in the treatment of cancer and other T-cell dysfunctional disorders.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: May 21, 2024
    Assignee: BAILI-BIO (CHENGDU) PHARMACEUTICAL CO., LTD.
    Inventors: Ole Olsen, Dong Xia, David Jellyman, Brian Kovacevich, Bill Brady, Blair Renshaw, Zeren Gao, Yi Zhu
  • Patent number: 11976103
    Abstract: Provided herein are IL-2 muteins, IL-2 mutein Fc-fusion molecules, anti-IL-2 antibodies, and complexes comprising an anti IL-2 antibody bound to an IL-2 cytokine that preferentially expand and activate T regulatory cells and are amenable to large scale production. Also provided herein are variant human IgG1 Fc molecules lacking or with highly reduced effector function and high stability despite lacking glycosylation at N297. Also provided herein are linker peptides that are glycosylated when expressed in mammalian cells. Also provided herein are methods of making and using the compositions of the present invention.
    Type: Grant
    Filed: October 7, 2020
    Date of Patent: May 7, 2024
    Assignee: Amgen Inc.
    Inventors: Eric Alan Butz, Christy Ann Thomson, Marc Alain Gavin, Ian Nevin Foltz, Dong Xia, Dina N. Alcorn, Randal Robert Ketchem, Ai Ching Lim, Kathy Manchulenko, Laura Sekirov, Kelly Ann Berry, Cyr Clovis Chua De Imus, Neeraj Jagdish Agrawal, Gunasekaran Kannan, Li Li
  • Publication number: 20240084026
    Abstract: The application provides anti-4-1BB monoclonal antibodies, antigen binding portions thereof, therapeutic compositions thereof and/or nucleic acid encoding the same, and their use to upregulate the function of T-cells to enhance cell-mediated immune responses in the treatment of cancer and other T-cell dysfunctional disorders.
    Type: Application
    Filed: July 25, 2023
    Publication date: March 14, 2024
    Inventors: Ole OLSEN, Dong XIA, David JELLYMAN, Brian KOVACEVICH, Bill BRADY, Blair RENSHAW, Zeren GAO, Yi ZHU
  • Publication number: 20240067741
    Abstract: The application provides anti-4-1BB monoclonal antibodies, antigen binding portions thereof, therapeutic compositions thereof and/or nucleic acid encoding the same, and their use to upregulate the function of T-cells to enhance cell-mediated immune responses in the treatment of cancer and other T-cell dysfunctional disorders.
    Type: Application
    Filed: July 25, 2023
    Publication date: February 29, 2024
    Inventors: Ole OLSEN, Dong XIA, David JELLYMAN, Brian KOVACEVICH, Bill BRADY, Blair RENSHAW, Zeren GAO, Yi ZHU
  • Patent number: 11787863
    Abstract: The disclosure provides a tetra-specific antibody monomer having a N-terminal and a C-terminal, comprising in tandem from the N-terminal to the C-terminal, a first scFv domain at the N-terminal, a Fab domain, a Fc domain, a second scFv domain, and a third scFv at the C-terminal, wherein the first scFv domain, the Fab domain, the second scFv domain, and the third scFv domain each has a binding specificity against a different antigen. In one embodiment, the antigen is a tumor antigen, an immune signaling antigen, or a combination thereof. Multi-specific antibodies comprising the disclosed tetra-specific antibodies are also provided.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: October 17, 2023
    Assignees: BAILI-BIO (CHENGDU) PHARMACEUTICAL CO., LTD.
    Inventors: Yi Zhu, Ole Olsen, Dong Xia, David Jellyman, Katrina Bykova, Anne-Marie K. Rousseau, Bill Brady, Blair Renshaw, Brian Kovacevich, Yu Liang, Zeren Gao
  • Publication number: 20230322920
    Abstract: The application provides tri-specific antibody monomers having a N-terminal and a C-terminal, comprising in tandem from the N-terminal to the C-terminal, a first scFv domain at the N-terminal, a Fab domain, a Fc domain, and a second scFv domain at the C-terminal. In one embodiment, the first scFv domain, the Fab domain, and the second scFv domain each has a binding specificity against a different antigen.
    Type: Application
    Filed: April 6, 2023
    Publication date: October 12, 2023
    Inventors: Yi ZHU, Ole OLSEN, Dong XIA, David JELLYMAN, Katrina BYKOVA, Anne-Marie K. ROUSSEAU, Bill BRADY, Blair RENSHAW, Brian KOVACEVICH, Yu LIANG, Zeren GAO
  • Patent number: 11649286
    Abstract: The application provides tri-specific antibody monomers having a N-terminal and a C-terminal, comprising in tandem from the N-terminal to the C-terminal, a first scFv domain at the N-terminal, a Fab domain, a Fc domain, and a second scFv domain at the C-terminal. In one embodiment, the first scFv domain, the Fab domain, and the second scFv domain each has a binding specificity against a different antigen.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: May 16, 2023
    Assignees: SYSTIMMUNE INC., BAILI-BIO (CHENGDU) PHARMACEUTICAL CO., LTD.
    Inventors: Yi Zhu, Ole Olsen, Dong Xia, David Jellyman, Katrina Bykova, Anne-Marie K. Rousseau, Bill Brady, Blair Renshaw, Brian Kovacevich, Yu Liang, Zeren Gao
  • Patent number: 11560431
    Abstract: The application provides the anti-PD-L1 monoclonal antibodies, antigen binding portions thereof, therapeutic compositions thereof and/or nucleic acid encoding the same, and their use to upregulate the function of T-cells to enhance cell-mediated immune responses in the treatment of cancer and other T-cell dysfunctional disorders.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: January 24, 2023
    Assignee: BAILI-BIO (CHENGDU) PHARMACEUTICAL CO., LTD.
    Inventors: Brian Kovacevich, Dong Xia, Anne E. Jensen, Jonathan K. Fallen, Blair Renshaw, Jeffrey B. Adamo, Phil Tan, Zeren Gao, Yi Zhu
  • Patent number: 11535667
    Abstract: The applications provides the anti-CD3 monoclonal antibodies, antigen-binding portions thereof, therapeutic compositions thereof and/or nucleic acid encoding the same, and their use to active CD3+ T-cells to enhance cell-mediated immune responses in the treatment of cancer and other T-cell dysfunctional disorders.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: December 27, 2022
    Assignees: SYSTIMMUNE, INC., BAILI-BIO (CHENGDU) PHARMACEUTICAL CO., LTD.
    Inventors: Ole Olsen, Phil Tan, Dong Xia, David Jellyman, Brian Kovacevich, Bill Brady, Blair Renshaw, Zeren Gao, Yi Zhu
  • Patent number: 11518815
    Abstract: The application provides anti-ROR1 monoclonal antibodies, antigen binding portions thereof, therapeutic compositions thereof and/or nucleic acid encoding the same, and their use to upregulate the function of T-cells to enhance cell-mediated immune responses in the treatment of cancer and other T-cell dysfunctional disorders.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: December 6, 2022
    Assignees: SYSTIMMUNE, INC., BAILI-BIO (CHENGDU) PHARMACEUTICAL CO., LTD.
    Inventors: Ole Olsen, Phil Tan, Dong Xia, David Jellyman, Brian Kovacevich, Bill Brady, Blair Renshaw, Zeren Gao, Yi Zhu
  • Patent number: 11466084
    Abstract: The application provides anti-PD-1 monoclonal antibodies, antigen binding portions thereof, therapeutic compositions thereof and/or nucleic acid encoding the same, and their use to upregulate the function of T-cells to enhance cell-mediated immune responses in the treatment of cancer and other T-cell dysfunctional disorders.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: October 11, 2022
    Assignee: SYSTIMMUNE, INC.
    Inventors: Brian Kovacevich, Dong Xia, Anne E. Jensen, Jonathan K. Fallen, Blair Renshaw, Jeffrey B. Adamo, Phil Tan, Zeren Gao, Yi Zhu
  • Publication number: 20220002406
    Abstract: The disclosure provides a tetra-specific antibody monomer having a N-terminal and a C-terminal, comprising in tandem from the N-terminal to the C-terminal, a first scFv domain at the N-terminal, a Fab domain, a Fc domain, a second scFv domain, and a third scFv at the C-terminal, wherein the first scFv domain, the Fab domain, the second scFv domain, and the third scFv domain each has a binding specificity against a different antigen. In one embodiment, the antigen is a tumor antigen, an immune signaling antigen, or a combination thereof. Multi-specific antibodies comprising the disclosed tetra-specific antibodies are also provided.
    Type: Application
    Filed: June 22, 2018
    Publication date: January 6, 2022
    Inventors: Yi ZHU, Ole OLSEN, Dong XIA, David JELLYMAN, Katrina BYKOVA, Anne-Marie K. ROUSSEAU, Bill BRADY, Blair RENSHAW, Brian KOVACEVICH, Yu LIANG, Zeren GAO
  • Publication number: 20220002425
    Abstract: The application provides guidance and navigation control (GNC) proteins. In one embodiment, the GNC protein Comprises a T-cell binding moiety and a cancer-targeting moiety, wherein the T-cell binding moiety has a binding specificity to a T-cell receptor comprising CD3, CD28, PDL1, PD1, OX40, 4-1BB, GITR, TIGIT, TIM-3, LAG-3, CTLA4, CD40, VISTA, ICOS, BTLA, Light, NKp30, CD28H, CD27, CD226, CD96, CD112R, A2AR, CD160, CD244, CECAM1, CD200R, TNFRSF25 (DR3), or a combination thereof, and wherein the cancer targeting moiety has a binding specificity to a cancer cell receptor.
    Type: Application
    Filed: June 22, 2018
    Publication date: January 6, 2022
    Inventors: Yi ZHU, Ole OLSEN, Dong XIA, David JELLYMAN, Katrina BYKOVA, Anne-Marie K. ROUSSEAU, Bill BRADY, Blair RENSHAW, Brian KOVACEVICH, Yu LIANG, Camilla WANG, Zeren GAO
  • Publication number: 20220002417
    Abstract: The application provides the anti-PD-L1 monoclonal antibodies, antigen binding portions thereof, therapeutic compositions thereof and/or nucleic acid encoding the same, and their use to upregulate the function of T-cells to enhance cell-mediated immune responses in the treatment of cancer and other T-cell dysfunctional disorders.
    Type: Application
    Filed: June 22, 2018
    Publication date: January 6, 2022
    Inventors: Brian KOVACEVICH, Dong XIA, Anne E. JENSEN, Jonathan K. FALLEN, Blair RENSHAW, Jeffrey B. Adamo, Phil TAN, Zeren GAO, Yi ZHU