Patents by Inventor Rudy Gerardus Elisabeth Coumans

Rudy Gerardus Elisabeth Coumans 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: 20230338570
    Abstract: The present invention relates to a process for preparing antibody-drug conjugates wherein therapeutic moieties are conjugated to one or more engineered cysteines as well as to one or more reduced interchain cysteines via a cleavable or non-cleavable linker.
    Type: Application
    Filed: May 24, 2023
    Publication date: October 26, 2023
    Inventor: Rudy Gerardus Elisabeth COUMANS
  • Patent number: 11696958
    Abstract: The present invention relates to a process for preparing antibody-drug conjugates and to antibody-drug conjugates wherein therapeutic moieties are conjugated to one or more engineered cysteines as well as to one or more reduced interchain cysteines via a cleavable or non-cleavable linker.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: July 11, 2023
    Assignee: Byondis B.V.
    Inventor: Rudy Gerardus Elisabeth Coumans
  • Publication number: 20230092648
    Abstract: The present invention relates to the combined use of a duocarmycin derivative-comprising antibody-drug conjugate and thiosulfate in the treatment of a tumor in a human, whereby the thiosulfate prevents or reduces unwanted non-target tissue toxicity of the antibody-drug conjugate.
    Type: Application
    Filed: February 3, 2021
    Publication date: March 23, 2023
    Inventors: Johannes Henricus Matthias SCHELLENS, Rudy Gerardus Elisabeth COUMANS
  • Patent number: 11584801
    Abstract: The present invention relates to antibodies against the human 5T4 oncofoetal antigen and corresponding antibody-drug conjugates that are suitable for testing in clinical trials. The antibodies are cross-reactive for humans and cynomolgus monkeys and exhibit an affinity for human 5T4 antigen which is in the same order of magnitude as their affinity for cynomolgus monkey 5T4 antigen. The invention further relates to the use of the antibodies and corresponding ADCs in the treatment of solid tumours and haematological malignancies.
    Type: Grant
    Filed: April 13, 2021
    Date of Patent: February 21, 2023
    Assignee: Byondis B.V.
    Inventors: Miranda Maria Cornelia Van Der Lee, Gerardus Joseph Andreas Ariaans, Jan Schouten, Marion Blomenrohr, Patrick Gerhard Groothuis, Rudy Gerardus Elisabeth Coumans
  • Patent number: 11419944
    Abstract: The present invention relates to linker-drug compounds (LDs) and antibody-drug conjugates (ADCs) comprising a non-linear self-immolative linker, which is cleavable or transformable under appropriate conditions and which reduces the hydrophobicity of the antibody-drug conjugate.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: August 23, 2022
    Assignee: Byondis B.V.
    Inventors: Ronald Christiaan Elgersma, Tijl Huijbregts, Rudy Gerardus Elisabeth Coumans
  • Publication number: 20210388115
    Abstract: The present invention relates to antibody-drug conjugates (ADCs) wherein a linker drug is site-specifically conjugated to an antibody through an engineered cysteine, and their use as a medicament, notably for the treatment of human solid tumours and haematological malignancies, in particular breast cancer, gastric cancer, colorectal cancer, urothelial cancer, ovarian cancer, uterine cancer, lung cancer, mesothelioma, liver cancer, pancreatic cancer, prostate cancer, and leukaemia.
    Type: Application
    Filed: August 23, 2021
    Publication date: December 16, 2021
    Inventors: Gerardus Joseph Andreas ARIAANS, Rudy Gerardus Elisabeth COUMANS
  • Publication number: 20210317231
    Abstract: The present invention relates to antibodies against the human 5T4 oncofoetal antigen and corresponding antibody-drug conjugates that are suitable for testing in clinical trials. The antibodies are cross-reactive for humans and cynomolgus monkeys and exhibit an affinity for human 5T4 antigen which is in the same order of magnitude as their affinity for cynomolgus monkey 5T4 antigen. The invention further relates to the use of the antibodies and corresponding ADCs in the treatment of solid tumours and haematological malignancies.
    Type: Application
    Filed: April 13, 2021
    Publication date: October 14, 2021
    Inventors: Miranda Maria Cornelia VAN DER LEE, Gerardus Joseph Andreas ARIAANS, Jan SCHOUTEN, Marion BLOMENROHR, Patrick Gerhard GROOTHUIS, Rudy Gerardus Elisabeth COUMANS
  • Patent number: 11136633
    Abstract: The present invention relates to antibody-drug conjugates (ADCs) wherein a linker drug is site-specifically conjugated to an antibody through an engineered cysteine, and their use as a medicament, notably for the treatment of human solid tumours and haematological malignancies, in particular breast cancer, gastric cancer, colorectal cancer, urothelial cancer, ovarian cancer, uterine cancer, lung cancer, mesothelioma, liver cancer, pancreatic cancer, prostate cancer, and leukaemia.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: October 5, 2021
    Assignee: Byondis B.V.
    Inventors: Gerardus Joseph Andreas Ariaans, Rudy Gerardus Elisabeth Coumans
  • Patent number: 11104968
    Abstract: The present invention relates to antibody-drug conjugates (ADCs) wherein a linker drug is site-specifically conjugated to an antibody through an engineered cysteine, and their use as a medicament, notably for the treatment of human solid tumours and haematological malignancies, in particular breast cancer, gastric cancer, colorectal cancer, urothelial cancer, ovarian cancer, uterine cancer, lung cancer, mesothelioma, liver cancer, pancreatic cancer, prostate cancer, and leukaemia.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: August 31, 2021
    Assignee: Byondis B.V.
    Inventors: Gerardus Joseph Andreas Ariaans, Rudy Gerardus Elisabeth Coumans
  • Patent number: 11052155
    Abstract: This invention relates to novel analogs of the DNA-alkylating agent CC-1065 and to their conjugates. Furthermore this invention concerns intermediates for the preparation of said agents and conjugates. The conjugates are designed to release their (multiple) payload after one or more activation steps and/or at a rate and time span controlled by the conjugate in order to selectively deliver and/or controllably release one or more of said DNA alkylating agents. The agents, conjugates, and intermediates can be used to treat an illness that is characterized by undesired (cell) proliferation. As an example, the agents and the conjugates of this invention may be used to treat a tumor.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: July 6, 2021
    Assignee: SYNTARGA BV
    Inventors: Patrick Henry Beusker, Rudy Gerardus Elisabeth Coumans, Ronald Christiaan Elgersma, Wiro Michael Petrus Bernardus Menge, Johannes Albertus Frederikus Joosten, Henri Johannes Spijker, Franciscus Marinus Hendrikus De Groot
  • Patent number: 11008400
    Abstract: The present disclosure relates to CDR defined antibodies targeting the 5T4 oncofoetal antigen (TPBG, 5T4, Wnt Activated Inhibitory Factor 1, WAIF1) which exhibit a binding affinity for human 5T4 antigen which is in the same order of magnitude as their affinity for cynomolgus monkey 5T4. Antibody-drug conjugates (ADCs), and their use in the treatment of human solid tumours and haematological malignancies are claimed.
    Type: Grant
    Filed: November 24, 2016
    Date of Patent: May 18, 2021
    Assignee: Byondis B.V.
    Inventors: Miranda Maria Cornelia Van der Lee, Gerardus Joseph Andreas Ariaans, Jan Schouten, Marion Blomenrohr, Patrick Gerhard Groothuis, Rudy Gerardus Elisabeth Coumans
  • Patent number: 10814009
    Abstract: The present invention relates to a process for the selective reduction of cysteine-engineered antibodies comprising reacting an antibody comprising one or more engineered cysteines at positions selected from HC40, HC41,HC42, HC89, HC152, HC153, HC155, HC171, LC40, LC41, LC165, and LC168 with a compound according to formula (I), (II), (III), (IV), (V), (VI) or (VII): (I) (II) (III) (IV) (V) (VI) (VII), and to a process for the preparation of antibody conjugates, including antibody-drug conjugates (ADCs).
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: October 27, 2020
    Assignee: Byondis B.V.
    Inventors: Rudy Gerardus Elisabeth Coumans, Henri Johannes Spijker
  • Publication number: 20200297859
    Abstract: The present invention relates to linker-drug compounds (LDs) and antibody-drug conjugates (ADCs) comprising a non-linear self-immolative linker, which is cleavable or transformable under appropriate conditions and which reduces the hydrophobicity of the antibody-drug conjugate.
    Type: Application
    Filed: October 11, 2017
    Publication date: September 24, 2020
    Inventors: Ronald Christiaan ELGERSMA, Tijl HUIJBREGTS, Rudy Gerardus Elisabeth COUMANS
  • Publication number: 20200276331
    Abstract: The present invention relates to a process for preparing antibody-drug conjugates and to antibody-drug conjugates wherein therapeutic moieties are conjugated to one or more engineered cysteines as well as to one or more reduced interchain cysteines via a cleavable or non-cleavable linker.
    Type: Application
    Filed: May 22, 2018
    Publication date: September 3, 2020
    Inventor: Rudy Gerardus Elisabeth COUMANS
  • Publication number: 20190388552
    Abstract: The present invention relates to a process for the selective reduction of cysteine-engineered antibodies comprising reacting an antibody comprising one or more engineered cysteines at positions selected from HC40, HC41,HC42, HC89, HC152, HC153, HC155, HC171, LC40, LC41, LC165, and LC168 with a compound according to formula (I), (II), (III), (IV), (V), (VI) or (VII): (I) (II) (III) (IV) (V) (VI) (VII), and to a process for the preparation of antibody conjugates, including antibody-drug conjugates (ADCs).
    Type: Application
    Filed: February 13, 2017
    Publication date: December 26, 2019
    Inventors: Rudy Gerardus Elisabeth COUMANS, Henri Johannes SPIJKER
  • Publication number: 20190368000
    Abstract: The present invention relates to antibody-drug conjugates (ADCs) wherein a linker drug is site-specifically conjugated to an antibody through an engineered cysteine, and their use as a medicament, notably for the treatment of human solid tumours and haematological malignancies, in particular breast cancer, gastric cancer, colorectal cancer, urothelial cancer, ovarian cancer, uterine cancer, lung cancer, mesothelioma, liver cancer, pancreatic cancer, prostate cancer, and leukaemia.
    Type: Application
    Filed: June 28, 2019
    Publication date: December 5, 2019
    Inventors: Gerardus Joseph Andreas ARIAANS, Rudy Gerardus Elisabeth COUMANS
  • Publication number: 20190367999
    Abstract: The present invention relates to antibody-drug conjugates (ADCs) wherein a linker drug is site-specifically conjugated to an antibody through an engineered cysteine, and their use as a medicament, notably for the treatment of human solid tumours and haematological malignancies, in particular breast cancer, gastric cancer, colorectal cancer, urothelial cancer, ovarian cancer, uterine cancer, lung cancer, mesothelioma, liver cancer, pancreatic cancer, prostate cancer, and leukaemia.
    Type: Application
    Filed: June 28, 2019
    Publication date: December 5, 2019
    Inventors: Gerardus Joseph Andreas ARIAANS, Rudy Gerardus Elisabeth COUMANS
  • Patent number: 10407743
    Abstract: The present invention relates to antibody-drug conjugates (ADCs) wherein a linker drug is site-specifically conjugated to an antibody through an engineered cysteine, and their use as a medicament, notably for the treatment of human solid tumors and haematological malignancies, in particular breast cancer, gastric cancer, colorectal cancer, urothelial cancer, ovarian cancer, uterine cancer, lung cancer, mesothelioma, liver cancer, pancreatic cancer, prostate cancer, and leukaemia.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: September 10, 2019
    Assignee: Synthon Biopharmaceuticals B.V.
    Inventors: Gerardus Joseph Andreas Ariaans, Rudy Gerardus Elisabeth Coumans
  • Publication number: 20190194346
    Abstract: The present disclosure relates to CDR defined antibodies targeting the 5T4 oncofoetal antigen (TPBG, 5T4, Wnt Activated Inhibitory Factor 1, WAIF1) which exhibit a binding affinity for human 5T4 antigen which is in the same order of magnitude as their affinity for cynomolgus monkey 5T4. Antibody-drug conjugates (ADCs), and their use in the treatment of human solid tumours and haematological malignancies are claimed.
    Type: Application
    Filed: November 24, 2016
    Publication date: June 27, 2019
    Inventors: Miranda Maria Cornelia VAN DER LEE, Gerardus Joseph Andreas ARIAANS, Jan SCHOUTEN, Marion BLOMENROHR, Patrick Gerhard GROOTHUIS, Rudy Gerardus Elisabeth COUMANS
  • Patent number: 10266606
    Abstract: The present invention relates to a method for purifying a mixture of cysteine-linked antibody-drug conjugates, wherein the amount of non-conjugated antibody is in the range of 0-40% by weight, using hydrophobic interaction chromatography (HIC). The mixture is loaded onto a preparative HIC column using a 0.2-1.5 M aqueous salt solution, in which non-conjugated antibody is collected in a flow-through fraction, followed by elution of a purified mixture of cysteine-linked antibody-drug conjugates using a 0-100 mM aqueous salt solution.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: April 23, 2019
    Assignee: Synthon Biopharmaceuticals B.V.
    Inventors: Guy De Roo, Ruud Martin Verstegen, Rudy Gerardus Elisabeth Coumans