Patents by Inventor Mark P. Chao

Mark P. Chao 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: 12274746
    Abstract: Methods are provided herein for determining and administering optimized dosing of therapeutic anti-D47 agents, in a schedule that provides safe escalation of dose while achieving a therapeutic level in a clinically effective period of time. The methods can comprise the steps of clearance, escalation, and maintenance. In one embodiment the dosing regimen administers an initial (i) sub-therapeutic dose of an anti-CD47 agent or (ii) a cytoreductive therapy to achieve a safe level of circulating tumor cells for subsequent treatment (clearance); escalating the dose of an anti-CD47 agent until a therapeutic dose is reached (escalation); and maintaining the therapeutic dose for a period of time sufficient to reduce tumor cells in the bone marrow of the patient (maintenance). In an alternative dosing regimen, a patient determined to have a safe level of circulating tumor cells at presentation is treated by the steps of escalation and maintenance without initial clearance.
    Type: Grant
    Filed: September 7, 2021
    Date of Patent: April 15, 2025
    Assignees: The Board of Trustees of the Leland Stanford Junior University, Forty Seven, LLC
    Inventors: Ravindra Majeti, Mark P. Chao, Jie Liu, Jens-Peter Volkmer, Irving L. Weissman
  • Publication number: 20250066473
    Abstract: Methods are provided for targeting cells for depletion, including without limitation cancer cells, in a regimen comprising contacting the targeted cells with a combination of immunoregulatory agents. The level of depletion of the targeted cell is enhanced relative to a regimen in which a single agent is used; and the effect may be synergistic relative to a regimen in which a single agent is used.
    Type: Application
    Filed: November 6, 2024
    Publication date: February 27, 2025
    Inventors: Stephen Willingham, Doris Po Yi Ho, Kelly Marie McKenna, Irving L. Weissman, Jens-Peter Volkmer, Mark P. Chao, Ravindra Majeti, Melissa N. McCracken
  • Patent number: 12162939
    Abstract: Methods are provided to manipulate phagocytosis of cells, including hematopoietic cells, e.g. circulating hematopoietic cells, bone marrow cells, acute leukemia cells, etc.; and solid tumor cells. In some embodiments of the invention the circulating cells are hematopoietic stem cells, or hematopoietic progenitor cells, particularly in a transplantation context, where protection from phagocytosis is desirable. In other embodiments the circulating cells are leukemia cells, particularly acute myeloid leukemia (AML), where increased phagocytosis is desirable.
    Type: Grant
    Filed: April 7, 2021
    Date of Patent: December 10, 2024
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Siddhartha Jaiswal, Irving L. Weissman, Ravindra Majeti, Mark P. Chao
  • Publication number: 20230406923
    Abstract: Methods are provided for treating a subject with an anti-CD47 agent.
    Type: Application
    Filed: June 15, 2023
    Publication date: December 21, 2023
    Inventors: Irving L. Weissman, Mark P. Chao, Ravindra Majeti, Jie Liu, Jens-Peter Volkmer
  • Publication number: 20230365682
    Abstract: Provided are methods of treating colorectal cancer in a subject comprising co-administering to the subject an effective amount of: (a) an agent that inhibits binding between CD47 and SIRP? (e.g., magrolimab); and (b) an agent that inhibits binding between vascular endothelial growth factor A (VEGFA) and one or more VEGFA cognate receptors (e.g., bevacizumab), optionally further including a chemotherapy regimen (e.g., FOLFIRI).
    Type: Application
    Filed: April 3, 2023
    Publication date: November 16, 2023
    Inventors: Mark P. Chao, William J. Grossman, Fatema A. Legrand
  • Publication number: 20230355796
    Abstract: Provided are methods of treating, mitigating, or preventing or delaying the growth, proliferation, recurrence or metastasis of, a Trop-2 expressing cancer in a subject by administering an effective amount of: (a) an agent that inhibits binding between CD47 and SIRP? (e.g., magrolimab); and (b) an anti-Trop-2 antibody drug conjugate (ADC) (e.g., sacituzumab govitecan) to the subject.
    Type: Application
    Filed: March 21, 2023
    Publication date: November 9, 2023
    Inventors: Mark P. Chao, William J. Grossman, Inderjit D. Lal, Fatema A. Legrand, Nathalie Scholler, Jamie G. Bates, Hikmat H. Assi, Chih-Chien Chou
  • Patent number: 11780918
    Abstract: Markers of acute myeloid leukemia stem cells (AMLSC) are identified. The markers are differentially expressed in comparison with normal counterpart cells, and are useful as diagnostic and therapeutic targets.
    Type: Grant
    Filed: May 4, 2022
    Date of Patent: October 10, 2023
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Ravindra Majeti, Irving L. Weissman, Siddhartha Jaiswal, Mark P. Chao
  • Patent number: 11718670
    Abstract: Methods are provided for treating a subject with an anti-CD47 agent.
    Type: Grant
    Filed: September 8, 2022
    Date of Patent: August 8, 2023
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Irving L. Weissman, Mark P. Chao, Ravindra Majeti, Jie Liu, Jens-Peter Volkmer
  • Publication number: 20230068235
    Abstract: Methods are provided for treating a subject with an anti-CD47 agent.
    Type: Application
    Filed: September 8, 2022
    Publication date: March 2, 2023
    Inventors: Irving L. Weissman, Mark P. Chao, Ravindra Majeti, Jie Liu, Jens-Peter Volkmer
  • Publication number: 20220340679
    Abstract: Provided are methods for treating, mitigating, or preventing or delaying the recurrence or metastasis of, a cancer in a subject comprising co-administering: (a) an agent that inhibits binding between CD47 and SIRP?; and (b) a NEDD8-activating enzyme E1 regulatory subunit (NAE1) inhibitor. Further provided are kits for practicing such methods.
    Type: Application
    Filed: April 12, 2022
    Publication date: October 27, 2022
    Inventors: Hikmat H. Assi, Mark P. Chao
  • Patent number: 11472878
    Abstract: Methods are provided for treating a subject with an anti-CD47 agent.
    Type: Grant
    Filed: April 14, 2017
    Date of Patent: October 18, 2022
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Irving L. Weissman, Mark P. Chao, Ravindra Majeti, Jie Liu, Jens-Peter Volkmer
  • Publication number: 20220275085
    Abstract: Markers of acute myeloid leukemia stem cells (AMLSC) are identified. The markers are differentially expressed in comparison with normal counterpart cells, and are useful as diagnostic and therapeutic targets.
    Type: Application
    Filed: May 4, 2022
    Publication date: September 1, 2022
    Inventors: Ravindra Majeti, Irving L. Weissman, Siddhartha Jaiswal, Mark P. Chao
  • Publication number: 20220267439
    Abstract: Methods are provided to manipulate phagocytosis of cells, including hematopoietic cells, e.g. circulating hematopoietic cells, bone marrow cells, acute leukemia cells, etc.; and solid tumor cells. In some embodiments of the invention the circulating cells are hematopoietic stem cells, or hematopoietic progenitor cells, particularly in a transplantation context, where protection from phagocytosis is desirable. In other embodiments the circulating cells are leukemia cells, particularly acute myeloid leukemia (AML), where increased phagocytosis is desirable.
    Type: Application
    Filed: May 4, 2022
    Publication date: August 25, 2022
    Inventors: Siddhartha Jaiswal, Irving L. Weissman, Ravindra Majeti, Mark P. Chao
  • Patent number: 11377495
    Abstract: Markers of acute myeloid leukemia stem cells (AMLSC) are identified. The markers are differentially expressed in comparison with normal counterpart cells, and are useful as diagnostic and therapeutic targets.
    Type: Grant
    Filed: June 17, 2021
    Date of Patent: July 5, 2022
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Ravindra Majeti, Irving L. Weissman, Siddhartha Jaiswal, Mark P. Chao
  • Publication number: 20220025041
    Abstract: Markers of acute myeloid leukemia stem cells (AMLSC) are identified. The markers are differentially expressed in comparison with normal counterpart cells, and are useful as diagnostic and therapeutic targets.
    Type: Application
    Filed: June 17, 2021
    Publication date: January 27, 2022
    Inventors: Ravindra Majeti, Irving L. Weissman, Siddhartha Jaiswal, Mark P. Chao
  • Publication number: 20210401979
    Abstract: Methods are provided herein for determining and administering optimized dosing of therapeutic anti-D47 agents, in a schedule that provides safe escalation of dose while achieving a therapeutic level in a clinically effective period of time. The methods can comprise the steps of clearance, escalation, and maintenance. In one embodiment the dosing regimen administers an initial (i) sub-therapeutic dose of an anti-CD47 agent or (ii) a cytoreductive therapy to achieve a safe level of circulating tumor cells for subsequent treatment (clearance); escalating the dose of an anti-CD47 agent until a therapeutic dose is reached (escalation); and maintaining the therapeutic dose for a period of time sufficient to reduce tumor cells in the bone marrow of the patient (maintenance). In an alternative dosing regimen, a patient determined to have a safe level of circulating tumor cells at presentation is treated by the steps of escalation and maintenance without initial clearance.
    Type: Application
    Filed: September 7, 2021
    Publication date: December 30, 2021
    Inventors: Ravindra Majeti, Mark P. Chao, Jie Liu, Jens-Peter Volkmer, Irving L. Weissman
  • Patent number: 11141480
    Abstract: Methods are provided herein for determining and administering optimized dosing of therapeutic anti-CD47 agents, in a schedule that provides safe escalation of dose while achieving a therapeutic level in a clinically effective period of time. The methods can comprise the steps of clearance, escalation, and maintenance. In one embodiment the dosing regimen administers an initial (i) sub-therapeutic dose of an anti-CD47 agent or (ii) a cytoreductive therapy to achieve a safe level of circulating tumor cells for subsequent treatment (clearance); escalating the dose of an anti-CD47 agent until a therapeutic dose is reached (escalation); and maintaining the therapeutic dose for a period of time sufficient to reduce tumor cells in the bone marrow of the patient (maintenance). In an alternative dosing regimen, a patient determined to have a safe level of circulating tumor cells at presentation is treated by the steps of escalation and maintenance without initial clearance.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: October 12, 2021
    Assignees: The Board of Trustees of the Leland Stanford Junior University, Forty Seven, Inc.
    Inventors: Ravindra Majeti, Mark P. Chao, Jie Liu, Jens-Peter Volkmer, Irving L. Weissman
  • Publication number: 20210238284
    Abstract: Methods are provided to manipulate phagocytosis of cells, including hematopoietic cells, e.g. circulating hematopoietic cells, bone marrow cells, acute leukemia cells, etc.; and solid tumor cells. In some embodiments of the invention the circulating cells are hematopoietic stem cells, or hematopoietic progenitor cells, particularly in a transplantation context, where protection from phagocytosis is desirable. In other embodiments the circulating cells are leukemia cells, particularly acute myeloid leukemia (AML), where increased phagocytosis is desirable.
    Type: Application
    Filed: April 7, 2021
    Publication date: August 5, 2021
    Inventors: Siddhartha Jaiswal, Irving L. Weissman, Ravindra Majeti, Mark P. Chao
  • Publication number: 20210230276
    Abstract: Methods are provided for targeting cells for depletion, including without limitation cancer cells, in a regimen comprising contacting the targeted cells with a combination of immunoregulatory agents. The level of depletion of the targeted cell is enhanced relative to a regimen in which a single agent is used; and the effect may be synergistic relative to a regimen in which a single agent is used.
    Type: Application
    Filed: April 8, 2021
    Publication date: July 29, 2021
    Inventors: Stephen Willingham, Doris Po Yi Ho, Kelly Marie McKenna, Irving L. Weissman, Jens-Peter Volkmer, Mark P. Chao, Ravindra Majeti, Melissa N. McCracken
  • Patent number: 11072655
    Abstract: Markers of acute myeloid leukemia stem cells (AMLSC) are identified. The markers are differentially expressed in comparison with normal counterpart cells, and are useful as diagnostic and therapeutic targets.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: July 27, 2021
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Ravindra Majeti, Irving L. Weissman, Siddhartha Jaiswal, Mark P. Chao