Patents Assigned to Byondis B.V.
  • Patent number: 11718681
    Abstract: The invention relates to antibodies against SIRP? that are suitable for use in anti-cancer therapy. The invention also relates to the use of the anti-SIRP? antibodies in the treatment of human solid tumours and haematological malignancies, optionally in combination with other anti-cancer therapies.
    Type: Grant
    Filed: February 2, 2022
    Date of Patent: August 8, 2023
    Assignee: Byondis B.V.
    Inventors: Gijsbertus Franciscus Maria Verheijden, Gerard Rouwendal, Roland Jan Arends, Timo Kars Van Den Berg, Hanke Lottie Matlung, Katarina Franke
  • 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
  • Patent number: 11633492
    Abstract: The compound of formula (II) is an advantageous intermediate for improving the process of synthesizing the linker-drug vc-seco-DUBA, as well as for the overall process for preparing an antibody-drug conjugate comprising the vc-seco-DUBA linker-drug. The methods of making the compound of formula (II) can include recovery of the compound as a solid, such as via crystallization, in high yields and purity.
    Type: Grant
    Filed: November 22, 2018
    Date of Patent: April 25, 2023
    Assignee: Byondis B.V.
    Inventors: Vladimir Janousek, Martin Kas
  • 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
  • Patent number: 11382982
    Abstract: The present invention relates to duocarmycin-containing antibody-drug conjugates (ADCs) for use in the treatment of human solid tumours and haematological malignancies expressing HER2, in particular breast cancer, gastric cancer, bladder cancer, ovarian cancer, lung cancer, prostate cancer, pancreatic cancer, colorectal cancer, head and neck squamous cell cancer or osteosarcoma, and acute lymphoblastic leukaemia. In particular, the present invention relates to duocarmycin-containing ADCs for use in the treatment of human solid tumours with HER2 IHC 2+ or 1+ and HER2 FISH negative tissue status. Advantageously, the present invention relates to duocarmycin-containing ADCs for use in the treatment of triple negative breast cancer (TNBC).
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: July 12, 2022
    Assignee: Byondis B.V.
    Inventors: Willem Dokter, Peter Johannes Goedings, Gijsbertus Franciscus Maria Verheijden, Patrick Henry Beusker
  • Patent number: 11274159
    Abstract: The present invention relates to antibodies against SIRP? that are suitable for use in anti-cancer therapy. The invention further relates to the use of the anti-SIRP? antibodies in the treatment of human solid tumours and haematological malignancies, optionally in combination with other anti-cancer therapeutics. The anti-SIRPalpha antibodies described are more specific than known anti-SIRPalpha antibodies, whereas they show excellent affinity for both SIRPalpha1 and SIRPalphaBIT. In one embodiment the anti-SIRPalpha antibodies do not bind to SIRPgamma. In a second embodiment, the anti-SIRPalpha antibodies do not bind to SIRPgamma and do not bind to SIRPbeta1v1. In a third embodiment, the anti-SIRPalpha antibodies do not bind to SIRPgamma and do not bind to SIRPeta1v2. In a fourth embodiment, the anti-SIRPalpha antibodies do not bind to SIRPbeta1v1.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: March 15, 2022
    Assignee: Byondis B.V.
    Inventors: Gijsbertus Franciscus Maria Verheijden, Gerard Rouwendal, Roland Jan Arends, Timo Kars Van Den Berg, Hanke Lottie Matlung, Katarina Franke
  • 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: 11077204
    Abstract: The present invention relates to lyophilized compositions comprising antibody-duocarmycin drug conjugates.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: August 3, 2021
    Assignee: Byondis B.V.
    Inventors: Niels Jaap Osinga, Ernst Johannes Bernardus Van Bockxmeer
  • 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: 10821191
    Abstract: The present invention relates to the duocarmycin-containing antibody-drug conjugate (ADC) trastuzumab vc-seco-DUBA (SYD985) for use in the treatment of trastuzumab emtansine (T-DM1) refractory HER2 IHC 3+ or HER2 IHC 2+/FISH positive cancer patients, particularly T-DM1 refractory breast cancer patients.
    Type: Grant
    Filed: September 21, 2016
    Date of Patent: November 3, 2020
    Assignee: Byondis B.V.
    Inventors: Gerrit Voortman, Norbert Peter Koper
  • Patent number: 10815194
    Abstract: The present invention relates to a process for the synthesis of mono-protected ?,?-diamino alkanes, the use of said process in a process for the synthesis of a linker drug comprising an ?,?-diamino alkane moiety and the use of the process of the present invention in a process for preparing an antibody-drug conjugate comprising an ?,?-diamino alkane moiety.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: October 27, 2020
    Assignee: Byondis B.V.
    Inventor: Wiro Michael Petrus Bernardus Menge
  • 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