Patents by Inventor Demetrios Kalaitzidis

Demetrios Kalaitzidis 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).

  • Publication number: 20220088077
    Abstract: A population of genetically engineered T cells, comprising a disrupted Reg1 gene and/or a disrupted TGFBRII gene. Such genetically engineered T cells may comprise further genetic modifications, for example, a disrupted CD70 gene. The population of genetically engineered T cells exhibit one or more of (a) improved cell growth activity; (b) enhanced persistence; and (c) reduced T cell exhaustion, (d) enhanced cytotoxicity activity, (e) resistant to inhibitory effects induced by TGF-b, and (f) resistant to inhibitory effects by fibroblasts and/or inhibitory factors secreted thereby, as compared to non-engineered T cell counterparts.
    Type: Application
    Filed: October 4, 2021
    Publication date: March 24, 2022
    Inventors: Mary-Lee Dequeant, Demetrios Kalaitzidis, Mohammed Ghonime
  • Patent number: 11254912
    Abstract: Provided herein, in some embodiments, are methods and compositions (e.g., cell compositions) for the treatment of cancer. The methods and compositions involve genetically engineered immune cells (e.g., T cells), in which the endogenous CD70 gene is disrupted by genetic editing, for example, the CRISPR/Cas9 gene editing technology.
    Type: Grant
    Filed: April 23, 2021
    Date of Patent: February 22, 2022
    Assignee: CRISPR Therapeutics AG
    Inventors: Jonathan Alexander Terrett, Demetrios Kalaitzidis, Mary-Lee Dequéant, Zinkal Samir Padalia
  • Publication number: 20220023344
    Abstract: Methods for treating a B cell malignancy comprising a population of genetically engineered immune cells (e.g., T cells), which express a chimeric antigen receptor (CAR) specific to CD19 and optionally an NK cell inhibitor (e.g., daratumumab). The genetically engineered immune cells may comprise a disrupted TRAC gene, a disrupted ?2M gene, or both.
    Type: Application
    Filed: June 25, 2021
    Publication date: January 27, 2022
    Inventors: Jonathan Alexander TERRETT, Demetrios KALAITZIDIS, Ewelina MORAWA, Mark BENTON
  • Publication number: 20220016173
    Abstract: A population of genetically engineered T cells, comprising a disrupted Reg1 gene and/or a disrupted TGFBRII gene. Such genetically engineered T cells may comprise further genetic modifications, for example, a disrupted CD70 gene. The population of genetically engineered T cells exhibit one or more of (a) improved cell growth activity; (b) enhanced persistence; and (c) reduced T cell exhaustion, (d) enhanced cytotoxicity activity, (e) resistant to inhibitory effects induced by TGF-b, and (f) resistant to inhibitory effects by fibroblasts and/or inhibitory factors secreted thereby, as compared to non-engineered T cell counterparts.
    Type: Application
    Filed: October 4, 2021
    Publication date: January 20, 2022
    Inventors: Mary-Lee Dequeant, Demetrios Kalaitzidis, Mohammed Ghonime
  • Patent number: 11207351
    Abstract: Materials and methods for producing genome-edited cells engineered to express a chimeric antigen receptor (CAR) construct on the cell surface, and materials and methods for genome editing to modulate the expression, function, or activity of one or more immuno-oncology related genes in a cell, and materials and methods for treating a patient using the genome-edited engineered cells.
    Type: Grant
    Filed: April 12, 2021
    Date of Patent: December 28, 2021
    Assignee: CRISPR Therapeutics AG
    Inventors: Jonathan Alexander Terrett, Demetrios Kalaitzidis, Lawrence Klein
  • Patent number: 11202802
    Abstract: Materials and methods for producing genome-edited cells engineered to express a chimeric antigen receptor (CAR) construct on the cell surface, and materials and methods for genome editing to modulate the expression, function, or activity of one or more immuno-oncology related genes in a cell, and materials and methods for treating a patient using the genome-edited engineered cells.
    Type: Grant
    Filed: April 12, 2021
    Date of Patent: December 21, 2021
    Assignee: CRISPR Therapeutics AG
    Inventors: Jonathan Alexander Terrett, Demetrios Kalaitzidis, Lawrence Klein
  • Patent number: 11191783
    Abstract: Materials and methods for producing genome-edited cells engineered to express a chimeric antigen receptor (CAR) construct on the cell surface, and materials and methods for genome editing to modulate the expression, function, or activity of one or more immuno-oncology related genes in a cell, and materials and methods for treating a patient using the genome-edited engineered cells.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: December 7, 2021
    Assignee: CRISPR THERAPEUTICS AG
    Inventors: Jonathan Alexander Terrett, Demetrios Kalaitzidis, Lawrence Klein
  • Publication number: 20210363212
    Abstract: Genetically engineered immune cells such as T cells capable of secreting an interleukin-12 protein, for example, upon activation of the T cells. Such genetically engineered immune cells may further express a chimeric antigen receptor (CAR) targeting an antigen of interest, e.g., a tumor-associated antigen, a disrupted T cell receptor alpha chain constant (TRAC) gene, a disrupted beta-2-microglubulin (?2M) gene, a disrupted gene encoding the antigen of interest, or a combination thereof.
    Type: Application
    Filed: May 21, 2021
    Publication date: November 25, 2021
    Inventors: Mohammed Ghonime, Demetrios Kalaitzidis, Jason Sagert, Jonathan Alexander Terrett
  • Patent number: 11166985
    Abstract: Materials and methods for producing genome-edited cells engineered to express a chimeric antigen receptor (CAR) construct on the cell surface, and materials and methods for genome editing to modulate the expression, function, or activity of one or more immuno-oncology related genes in a cell, and materials and methods for treating a patient using the genome-edited engineered cells.
    Type: Grant
    Filed: July 29, 2020
    Date of Patent: November 9, 2021
    Assignee: CRISPR Therapeutics AG
    Inventors: Jonathan Alexander Terrett, Demetrios Kalaitzidis, Lawrence Klein
  • Patent number: 11135247
    Abstract: Materials and methods for producing genome-edited cells engineered to express a chimeric antigen receptor (CAR) construct on the cell surface, and materials and methods for genome editing to modulate the expression, function, or activity of one or more immuno-oncology related genes in a cell, and materials and methods for treating a patient using the genome-edited engineered cells.
    Type: Grant
    Filed: July 8, 2020
    Date of Patent: October 5, 2021
    Assignee: CRISPR Therapeutics AG
    Inventors: Jonathan Alexander Terrett, Demetrios Kalaitzidis, Lawrence Klein
  • Publication number: 20210268026
    Abstract: A population of genetically engineered immune cells (e.g., T cells), which express a chimeric antigen receptor (CAR) specific to CD19 and contain a disrupted TRAC gene, a disrupted B2M gene, or both, for use in treating a B cell malignancy.
    Type: Application
    Filed: April 22, 2021
    Publication date: September 2, 2021
    Applicant: CRISPR Therapeutics AG
    Inventors: Mark Benton, Tony Ho, Demetrios Kalaitzidis, Ewelina Morawa, Jonathan Alexander Terrett
  • Publication number: 20210261919
    Abstract: Provided herein, in some embodiments, are methods and compositions (e.g., cell compositions) for the treatment of cancer.
    Type: Application
    Filed: April 23, 2021
    Publication date: August 26, 2021
    Applicant: CRISPR Therapeutics AG
    Inventors: Jonathan Alexander Terrett, Demetrios Kalaitzidis, Mary-Lee Dequéant, Zinkal Samir Padalia
  • Publication number: 20210252060
    Abstract: Materials and methods for producing genome-edited cells engineered to express a chimeric antigen receptor (CAR) construct on the cell surface, and materials and methods for genome editing to modulate the expression, function, or activity of one or more immuno-oncology related genes in a cell, and materials and methods for treating a patient using the genome-edited engineered cells.
    Type: Application
    Filed: April 12, 2021
    Publication date: August 19, 2021
    Applicant: CRISPR Therapeutics AG
    Inventors: Jonathan Alexander Terrett, Demetrios Kalaitzidis, Lawrence Klein
  • Publication number: 20210246425
    Abstract: Provided herein, in some embodiments, are methods and compositions (e.g., cell compositions) for the treatment of cancer.
    Type: Application
    Filed: April 23, 2021
    Publication date: August 12, 2021
    Applicant: CRISPR Therapeutics AG
    Inventors: Jonathan Alexander Terrett, Demetrios Kalaitzidis, Mary-Lee Dequéant, Zinkal Samir Padalia
  • Publication number: 20210236551
    Abstract: Materials and methods for producing genome-edited cells engineered to express a chimeric antigen receptor (CAR) construct on the cell surface, and materials and methods for genome editing to modulate the expression, function, or activity of one or more immuno-oncology related genes in a cell, and materials and methods for treating a patient using the genome-edited engineered cells.
    Type: Application
    Filed: April 12, 2021
    Publication date: August 5, 2021
    Applicant: CRISPR Therapeutics AG
    Inventors: Jonathan Alexander TERRETT, Demetrios KALAITZIDIS, Lawrence KLEIN
  • Publication number: 20210236552
    Abstract: Materials and methods for producing genome-edited cells engineered to express a chimeric antigen receptor (CAR) construct on the cell surface, and materials and methods for genome editing to modulate the expression, function, or activity of one or more immuno-oncology related genes in a cell, and materials and methods for treating a patient using the genome-edited engineered cells.
    Type: Application
    Filed: April 12, 2021
    Publication date: August 5, 2021
    Applicant: CRISPR Therapeutics AG
    Inventors: Jonathan Alexander Terrett, Demetrios Kalaitzidis, Lawrence Klein
  • Patent number: 11071755
    Abstract: Materials and methods for producing genome-edited cells engineered to express a chimeric antigen receptor (CAR) construct on the cell surface, and materials and methods for genome editing to modulate the expression, function, or activity of one or more immuno-oncology related genes in a cell, and materials and methods for treating a patient using the genome-edited engineered cells.
    Type: Grant
    Filed: June 15, 2020
    Date of Patent: July 27, 2021
    Assignee: CRISPR Therapeutics AG
    Inventors: Jonathan Alexander Terrett, Demetrios Kalaitzidis, Lawrence Klein
  • Patent number: 11013767
    Abstract: Materials and methods for producing genome-edited cells engineered to express a chimeric antigen receptor (CAR) construct on the cell surface, and materials and methods for genome editing to modulate the expression, function, or activity of one or more immuno-oncology related genes in a cell, and materials and methods for treating a patient using the genome-edited engineered cells.
    Type: Grant
    Filed: August 3, 2020
    Date of Patent: May 25, 2021
    Assignee: CRISPR Therapeutics AG
    Inventors: Jonathan Alexander Terrett, Demetrios Kalaitzidis, Lawrence Klein
  • Publication number: 20210139850
    Abstract: Aspects of the present disclosure relate to methods for manufacturing genetically engineered T cells expressing a chimeric antigen receptor (CAR) that provide several improvements over conventional manufacturing methods, thereby enabling production of a robust supply of clinically useful CAR T-cell therapies.
    Type: Application
    Filed: November 13, 2020
    Publication date: May 13, 2021
    Inventors: Hui Yu, Demetrios Kalaitzidis, Siyuan Tan
  • Publication number: 20210139935
    Abstract: Aspects of the present disclosure relate to methods for manufacturing genetically engineered T cells expressing a chimeric antigen receptor (CAR) that provide several improvements over conventional manufacturing methods, thereby enabling production of a robust supply of clinically useful CAR T-cell therapies.
    Type: Application
    Filed: November 13, 2020
    Publication date: May 13, 2021
    Inventors: Julie Carson, Demetrios Kalaitzidis, Siyuan Tan, Hui Yu