Patents Assigned to Magenta Therapeutics, Inc.
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Patent number: 11572411Abstract: The invention provides compositions and methods useful for the depletion of CD117+ cells and for the treatment of various hematopoietic diseases, metabolic disorders, cancers, and autoimmune diseases, among others. Described herein are antibodies, antigen-binding fragments, and conjugates thereof that can be applied to effect the treatment of these conditions, for instance, by depleting a population of CD117+ cells in a patient, such as a human. The compositions and methods described herein can be used to treat a disorder directly, for instance, by depleting a population of CD117+ cancer cells or autoimmune cells. The compositions and methods described herein can also be used to prepare a patient for hematopoietic stem cell transplant therapy and to improve the engraftment of hematopoietic stem cell transplants by selectively depleting endogenous hematopoietic stem cells prior to the transplant procedure.Type: GrantFiled: November 17, 2020Date of Patent: February 7, 2023Assignee: Magenta Therapeutics, Inc.Inventors: Bradley R. Pearse, Anthony Boitano, Rahul Palchaudhuri, Sean McDonough, Rajiv Panwar, Jonathan Philip Belk, Matthew Duncan Smith
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Patent number: 11260079Abstract: The invention provides compositions and methods useful for mobilizing populations of hematopoietic stem and progenitor cells within a donor, as well as for determining whether samples of mobilized cells are suitable for release for ex vivo expansion and/or therapeutic use. In accordance with the compositions and methods described herein, mobilized hematopoietic stem and progenitor cells can be withdrawn from a donor and administered to a patient for the treatment of various stem cell disorders, including hematopoietic diseases, metabolic disorders, cancers, and autoimmune diseases, among others. In certain embodiments, the compositions and methods described herein lead to the mobilization of a population of CD34dim cells that have immunosuppressive effects and that can reduce the incidence of graft vs. host disease.Type: GrantFiled: March 13, 2019Date of Patent: March 1, 2022Assignee: Magenta Therapeutics, Inc.Inventors: Dwight Morrow, Patrick C. Falahee, Anthony Boitano, Michael P. Cooke, Kevin A. Goncalves
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Patent number: 11229711Abstract: Provided herein are antibody-cytotoxin antibody-drug conjugates and related compounds, such as linker-cytotoxin conjugates and the linkers used to make them, and intermediates in their synthesis; compositions; and methods, including methods of treating cancers.Type: GrantFiled: June 6, 2014Date of Patent: January 25, 2022Assignee: Magenta Therapeutics, Inc.Inventors: David Y. Jackson, Edward Ha
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Publication number: 20210101990Abstract: The invention provides methods of preventing and treating graft-versus-host-disease and autoimmune diseases, such as those arising from transplant therapy, by selective depletion of hematopoietic cells through the use of antibody-drug conjugates (ADCs) that specifically bind CD134 or CD278. The compositions and methods described herein can be used to treat a variety of pathologies, including autoimmune diseases, stem cell disorders, and other blood conditions.Type: ApplicationFiled: July 17, 2020Publication date: April 8, 2021Applicant: Magenta Therapeutics, Inc.Inventors: Megan D. Hoban, Anthony Boitano, Michael Cooke
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Patent number: 10919900Abstract: The disclosure relates to aryl hydrocarbon receptor antagonists, such as substituted imidazopyridines and imidazopyrazines, as well as methods of expanding hematopoietic stem cells by culturing hematopoietic stem or progenitor cells in the presence of these agents. Additionally, the disclosure provides methods of treating various pathologies in a patient by administration of expanded hematopoietic stem cells. The disclosure further provides methods of synthesizing aryl hydrocarbon receptor antagonists, such as substituted imidazopyridines and imidazopyrazines, as well as kits containing aryl hydrocarbon receptor antagonists that can be used for the expansion of hematopoietic stem cells.Type: GrantFiled: September 13, 2019Date of Patent: February 16, 2021Assignee: Magenta Therapeutics Inc.Inventor: Arthur Glenn Romero
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Patent number: 10899843Abstract: The invention provides compositions and methods useful for the depletion of CD117+ cells and for the treatment of various hematopoietic diseases, metabolic disorders, cancers, e.g., acute myeloid leukemia (AML) and autoimmune diseases, among others. Described herein are antibodies, antigen-binding fragments, and conjugates thereof that can be applied to effect the treatment of these conditions, for instance, by depleting a population of CD117+ cells in a patient, such as a human. The compositions and methods described herein can be used to treat a disorder directly, for instance, by depleting a population of CD117+ cancer cells or autoimmune cells. The compositions and methods described herein can also be used to prepare a patient for hematopoietic stem cell transplant therapy and to improve the engraftment of hematopoietic stem cell transplants by selectively depleting endogenous hematopoietic stem cells prior to the transplant procedure.Type: GrantFiled: October 23, 2018Date of Patent: January 26, 2021Assignee: Magenta Therapeutics, Inc.Inventors: Bradley R. Pearse, Michael Cooke, Anthony Boitano, Rahul Palchaudhuri, Sean McDonough, Rajiv Panwar, Jacob Glanville
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Patent number: 10882915Abstract: The invention provides compositions and methods useful for the depletion of CD117+ cells and for the treatment of various hematopoietic diseases, metabolic disorders, cancers, and autoimmune diseases, among others. Described herein are antibodies, antigen-binding fragments, and conjugates thereof that can be applied to effect the treatment of these conditions, for instance, by depleting a population of CD117+ cells in a patient, such as a human. The compositions and methods described herein can be used to treat a disorder directly, for instance, by depleting a population of CD117+ cancer cells or autoimmune cells. The compositions and methods described herein can also be used to prepare a patient for hematopoietic stem cell transplant therapy and to improve the engraftment of hematopoietic stem cell transplants by selectively depleting endogenous hematopoietic stem cells prior to the transplant procedure.Type: GrantFiled: October 23, 2018Date of Patent: January 5, 2021Assignee: Magenta Therapeutics, Inc.Inventors: Bradley R. Pearse, Anthony Boitano, Rahul Palchaudhuri, Sean McDonough, Rajiv Panwar, Jonathan Philip Belk, Matthew Duncan Smith
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Publication number: 20200376135Abstract: Disclosed are antibodies and antibody drug conjugates having an Fc region with substitutions resulting in essentially a silent Fc region. The antibodies and antibody drug conjugates described herein are useful for the depletion of cells and for the treatment of various hematopoietic diseases, metabolic disorders, cancers, e.g., acute myeloid leukemia (AML) and autoimmune diseases, among others. The compositions and methods described herein can be used to treat a disorder directly, for instance, by depleting, e.g., a population of CD45+ or CD117+ cancer cells or CD45+ autoimmune cells. The compositions and methods described herein can also be used to prepare a patient for hematopoietic stem cell transplant therapy and to improve the engraftment of hematopoietic stem cell transplants by selectively depleting endogenous hematopoietic stem cells prior to the transplant procedure.Type: ApplicationFiled: April 24, 2020Publication date: December 3, 2020Applicant: Magenta Therapeutics, Inc.Inventors: Anthony Boitano, Michael Cooke, Charlotte Fenton McDonagh, Rahul Palchaudhuri, Bradley R. Pearse, Ganapathy N. Sarma
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Patent number: 10781259Abstract: Provided herein are modified antibodies, compounds used to make them, and intermediates in their synthesis; compositions; formulations and methods, including methods of treating diseases, disorders or conditions, for example, cancer, in humans.Type: GrantFiled: June 6, 2014Date of Patent: September 22, 2020Assignee: Magenta Therapeutics, Inc.Inventors: David Jackson, Edward Ha
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Patent number: 10624973Abstract: The invention provides compositions and methods useful for the depletion of cells, such as CD45+, CD135+, CD34+, CD90+, and/or CD110+ cells, and for the treatment of various hematopoietic diseases, metabolic disorders, cancers, and autoimmune diseases, among others. Described herein are antibodies, antigen-binding fragments, ligands, and conjugates thereof that can be applied to effect the treatment of these conditions, for instance, by depleting a population of CD45+, CD135+, CD34+, CD90+, or CD110+ cells in a patient, such as a human. The compositions and methods described herein can be used to treat a disorder directly, for instance, by depleting a population of CD45+, CD135+, CD34+, CD90+, or CD110+ cancer cells or autoimmune cells.Type: GrantFiled: February 28, 2019Date of Patent: April 21, 2020Assignee: Magenta Therapeutics, Inc.Inventors: Andrew Nixon, Dwight Morrow, Adam Hartigan
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Patent number: 10576161Abstract: The invention provides methods of preventing and treating graft-versus-host-disease and autoimmune diseases, such as those arising from transplant therapy, by selective depletion of hematopoietic cells through the use of antibody-drug conjugates and ligand-drug conjugates that specifically bind CD137. The compositions and methods described herein can be used to treat a variety of pathologies, including stem cell disorders and other blood conditions.Type: GrantFiled: January 19, 2018Date of Patent: March 3, 2020Assignee: Magenta Therapeutics, Inc.Inventors: Adam Hartigan, Anthony Boitano, Michael Cooke, Megan D. Hoban, Rahul Palchaudhuri
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Publication number: 20190328901Abstract: The invention provides compositions and methods useful for the depletion of cells, such as CD45+, CD135+, CD34+, CD90+, and/or CD110+ cells, and for the treatment of various hematopoietic diseases, metabolic disorders, cancers, and autoimmune diseases, among others. Described herein are antibodies, antigen-binding fragments, ligands, and conjugates thereof that can be applied to effect the treatment of these conditions, for instance, by depleting a population of CD45+, CD135+, CD34+, CD90+, or CD110+ cells in a patient, such as a human. The compositions and methods described herein can be used to treat a disorder directly, for instance, by depleting a population of CD45+, CD135+, CD34+, CD90+, or CD110+ cancer cells or autoimmune cells.Type: ApplicationFiled: June 19, 2017Publication date: October 31, 2019Applicant: Magenta Therapeutics, Inc.Inventors: Andrew NIXON, Dwight MORROW, Adam HARTIGAN
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Patent number: 10457683Abstract: The disclosure relates to aryl hydrocarbon receptor antagonists, such as substituted imidazopyridines and imidazopyrazines, as well as methods of expanding hematopoietic stem cells by culturing hematopoietic stem or progenitor cells in the presence of these agents. Additionally, the disclosure provides methods of treating various pathologies in a patient by administration of expanded hematopoietic stem cells. The disclosure further provides methods of synthesizing aryl hydrocarbon receptor antagonists, such as substituted imidazopyridines and imidazopyrazines, as well as kits containing aryl hydrocarbon receptor antagonists that can be used for the expansion of hematopoietic stem cells.Type: GrantFiled: April 12, 2018Date of Patent: October 29, 2019Assignee: Magenta Therapeutics Inc.Inventor: Arthur Glenn Romero
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Patent number: 10434185Abstract: The invention provides methods of preventing and treating graft-versus-host-disease and autoimmune diseases, such as those arising from transplant therapy, by selective depletion of hematopoietic cells through the use of antibody-drug conjugates and ligand-drug conjugates that specifically bind CD137. The compositions and methods described herein can be used to treat a variety of pathologies, including stem cell disorders and other blood conditions.Type: GrantFiled: November 21, 2018Date of Patent: October 8, 2019Assignee: Magenta Therapeutics, Inc.Inventors: Adam Hartigan, Anthony Boitano, Michael Cooke, Megan D. Hoban, Rahul Palchaudhuri
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Patent number: 10351572Abstract: The disclosure relates to aryl hydrocarbon receptor antagonists, such as substituted imidazopyridines and imidazopyrazines, as well as methods of expanding hematopoietic stem cells by culturing hematopoietic stem or progenitor cells in the presence of these agents. Additionally, the disclosure provides methods of treating various pathologies in a patient by administration of expanded hematopoietic stem cells. The disclosure further provides methods of synthesizing aryl hydrocarbon receptor antagonists, such as substituted imidazopyridines and imidazopyrazines, as well as kits containing aryl hydrocarbon receptor antagonists that can be used for the expansion of hematopoietic stem cells.Type: GrantFiled: February 8, 2019Date of Patent: July 16, 2019Assignee: Magenta Therapeutics Inc.Inventor: Arthur Glenn Romero
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Patent number: 10111966Abstract: The invention provides compositions and methods useful for the depletion of CD117+ cells and for the treatment of various hematopoietic diseases, metabolic disorders, cancers, and autoimmune diseases, among others. Described herein are antibodies, antigen-binding fragments, ligands, and conjugates thereof that can be applied to effect the treatment of these conditions, for instance, by depleting a population of CD117+ cells in a patient, such as a human. The compositions and methods described herein can be used to treat a disorder directly, for instance, by depleting a population of CD117+ cancer cells or autoimmune cells. The compositions and methods described herein can also be used to prepare a patient for hematopoietic stem cell transplant therapy and to improve the engraftment of hematopoietic stem cell transplants by selectively depleting endogenous hematopoietic stem cells prior to the transplant procedure.Type: GrantFiled: June 19, 2017Date of Patent: October 30, 2018Assignee: Magenta Therapeutics, Inc.Inventors: Andrew Nixon, Dwight Morrow, Adam Hartigan
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Patent number: 10058573Abstract: Described herein are compositions and methods useful for mobilizing populations of hematopoietic stem and progenitor cells within a subject, as well as for determining whether samples of mobilized cells are suitable for release for ex vivo expansion and/or therapeutic use. In accordance with the composition and methods described herein, mobilized hematopoietic stem and progenitor cells can be withdrawn from a donor and administered to a patient for the treatment of various disorders, including hematopoietic diseases, metabolic disorders, cancers, and autoimmune diseases, among others.Type: GrantFiled: December 6, 2017Date of Patent: August 28, 2018Assignee: Magenta Therapeutics, Inc.Inventors: Dwight Morrow, Patrick C. Falahee, Anthony Boitano, Michael P. Cooke, Kevin A. Goncalves