Patents Assigned to SEAGEN INC.
  • Patent number: 11180552
    Abstract: Humanized antibodies, including masked antibodies that specifically bind to CD47 are provided. Methods for using anti-CD47 antibodies, including masked antibodies, to modulate activity of (e.g., inhibit proliferation of) a CD47-expressing cell, as well as for the treatment of one or more diseases or disorders (e.g., cancer) associated with CD47-expressing cells, are provided.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: November 23, 2021
    Assignee: Seagen Inc.
    Inventors: Shyra Gardai, Matthew Levengood, Vivian Trang, Lori Westendorf, Christopher Carosino, Che Leung-Law, Michael Feldhaus
  • Patent number: 11169158
    Abstract: The present invention provides methods and systems for the rapid determination of the intact mass of non-covalently associated antibody heavy chains (HC) and light chains (LC) which result from the attachment of drug conjugates to interchain cysteine residues. By analyzing the antibody-drug conjugate (ADC) using native desalting conditions, the intact-bivalent structure of the ADC, which ordinarily would decompose as a consequence of denaturing chromatographic conditions typically used for LCMS, is maintained. The mass of the desalted ADC is subsequently determined using desolvation and ionization ESI-MS conditions. The methods described herein provide for direct measurement of the intact mass of an ADC conjugated at interchain cysteine residues. The methods described herein also provide for the relative quantitation of the individual ADC species.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: November 9, 2021
    Assignee: Seagen Inc.
    Inventors: John Fay Valliere-Douglass, Oscar Salas
  • Publication number: 20210340260
    Abstract: The invention provides antibodies that specifically bind to integrin ?v?6. The antibodies are useful for treatment and diagnoses of various cancers as well as detecting ?v?6.
    Type: Application
    Filed: January 8, 2021
    Publication date: November 4, 2021
    Applicant: Seagen Inc.
    Inventors: Maureen Ryan, Django Sussman
  • Publication number: 20210315962
    Abstract: Methods for the treatment of CD30-expressing cancers are provided. The methods comprise administering to a subject in need thereof a weekly dose of from about 0.8 mg/kg to about 1.8 mg/kg of an antibody-drug conjugate compound having formula (I); or a pharmaceutically acceptable salt thereof; wherein: mAb is an anti-CD30 antibody unit, S is a sulfur atom of the antibody, A- is a Stretcher unit, and p is from about 3 to about 5.
    Type: Application
    Filed: June 25, 2021
    Publication date: October 14, 2021
    Applicant: SEAGEN INC.
    Inventors: Eric Sievers, Dana Kennedy
  • Publication number: 20210283268
    Abstract: Antibody drug conjugates (ADC's) that bind to 191P4D12 protein and variants thereof are described herein. 191P4D12 exhibits tissue specific expression in normal adult tissue, and is aberrantly expressed in the cancers listed in Table I. Consequently, the ADC's of the invention provide a therapeutic composition for the treatment of cancer.
    Type: Application
    Filed: December 15, 2020
    Publication date: September 16, 2021
    Applicants: AGENSYS, INC., SEAGEN INC.
    Inventors: Daulet SATPAYEV, Robert Kendall MORRISON, Karen Jane Meyrick MORRISON, Jean GUDAS, Aya JAKOBOVITS, Michael TORGOV, Zili AN
  • Patent number: 11116847
    Abstract: The present invention provides Ligand-Drug Conjugates and Drug-Linker Compounds comprising a methylene carbamate unit. The invention provides inter alia, Ligand-Drug Conjugates, wherein the Ligand-Drug Conjugate is comprised of a Self-immolative Assembly Unit having a methylene carbamate unit for conjugation of a drug to a targeting ligand, methods of preparing and using them, and intermediates thereof. The Ligand-Drug Conjugates of the present invention are stable in circulation, yet capable of inflicting cell death once free drug is released from a Conjugate in the vicinity or within tumor cells.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: September 14, 2021
    Assignee: Seagen Inc.
    Inventors: Robert Kolakowski, Scott Jeffrey, Patrick Burke
  • Patent number: 11110179
    Abstract: This invention relates to treatment of cancer using a CD33 antibody drug conjugate in combination with chemotherapeutic agents.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: September 7, 2021
    Assignee: Seagen Inc.
    Inventors: Dana Kennedy, Eric Feldman
  • Publication number: 20210269527
    Abstract: Isolated antibodies or antigen-binding portions that bind to human TIGIT (T-cell immunoreceptor with Ig and ITIM domains) are provided. In some embodiments, the antibody or antigen-binding portion thereof has a binding affinity (KD) for human TIGIT of less than 5 nM. In some embodiments, the anti-TIGIT antibody blocks binding of CD155 and/or CD112 to TIGIT.
    Type: Application
    Filed: October 28, 2020
    Publication date: September 2, 2021
    Applicant: Seagen Inc.
    Inventors: Julia C. Piasecki, Courtney Beers, Scott Peterson, Bianka Prinz
  • Patent number: 11103593
    Abstract: The present invention provides Ligand-Drug Conjugates comprising a PEG Unit in a parallel orientation to the Drug Unit. The invention provides inter alia, Ligand-Drug Conjugates (LDCs), methods of preparing and using them, and intermediates thereof. The Ligand-Drug Conjugates are stable in circulation, yet capable of inflicting cell death on targeted cells or inhibiting proliferation of targeted cells once its drug cargo is released in the vicinity or within targeted cells. In principle embodiments, an LDC of the present invention is represented by the structure of Formula I.
    Type: Grant
    Filed: October 14, 2014
    Date of Patent: August 31, 2021
    Assignee: SEAGEN INC.
    Inventors: Robert Lyon, Patrick Burke, Joshua Hunter
  • Patent number: 11078291
    Abstract: The invention provides humanized antibodies that specifically bind to BCMA. The antibodies are useful for treatment and diagnoses of various cancers and immune disorders as well as detecting BCMA.
    Type: Grant
    Filed: May 14, 2019
    Date of Patent: August 3, 2021
    Assignee: Seagen Inc.
    Inventors: Django Sussman, Maureen Ryan, Lori Westendorf, Michael Feldhaus
  • Patent number: 11077164
    Abstract: Methods for the treatment of CD30-expressing cancers are provided. The methods comprise administering to a subject in need thereof a weekly dose of from about 0.8 mg/kg to about 1.8 mg/kg of an antibody-drug conjugate compound having formula (I); or a pharmaceutically acceptable salt thereof; wherein: mAb is an anti-CD30 antibody unit, S is a sulfur atom of the antibody, A- is a Stretcher unit, and p is from about 3 to about 5.
    Type: Grant
    Filed: January 6, 2021
    Date of Patent: August 3, 2021
    Assignee: SEAGEN INC.
    Inventors: Eric Sievers, Dana Kennedy
  • Publication number: 20210198367
    Abstract: Provided are novel anti-?v?6 antibodies and antibody-drug conjugates and methods of using such anti-?v?6 antibodies and antibody-drug conjugates to treat cancer.
    Type: Application
    Filed: December 4, 2020
    Publication date: July 1, 2021
    Applicant: SEAGEN INC.
    Inventors: Maureen Ryan, Lori Westendorf, Eric Bradley Meyer, Heather Jean Kostner
  • Patent number: 11033561
    Abstract: The invention provides methods and compositions for the inhibition of fucosylation of proteins, including antibodies, in vivo by administration of a fucose analog.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: June 15, 2021
    Assignee: SEAGEN INC.
    Inventors: Peter Senter, Stephen Alley, Dennis Benjamin
  • Patent number: 11027021
    Abstract: This invention relates to treatment of cancer using antibody drug conjugates that comprise PBD molecules in combination with Bcl-2 inhibitors.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: June 8, 2021
    Assignee: Seagen Inc.
    Inventors: William Arthur, Robert Thurman, Travis Biechele, Rory Rohm
  • Patent number: 11028181
    Abstract: The present invention provides glycan-interacting antibodies and methods for producing glycan-interacting antibodies useful in the treatment and prevention of human disease, including cancer. Such glycan-interacting antibodies include humanized antibodies, derivatives and fragments thereof as well as related compositions and kits. Methods of using glycan-interacting antibodies for treatment and diagnosis are included.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: June 8, 2021
    Assignee: Seagen Inc.
    Inventors: David A. Eavarone, Jillian M. Prendergast, Jeffrey Behrens
  • Publication number: 20210138020
    Abstract: Methods for the treatment of CD30-expressing cancers are provided. The methods comprise administering to a subject in need thereof a weekly dose of from about 0.8 mg/kg to about 1.8 mg/kg of an antibody-drug conjugate compound having formula (I); or a pharmaceutically acceptable salt thereof; wherein: mAb is an anti-CD30 antibody unit, S is a sulfur atom of the antibody, A- is a Stretcher unit, and p is from about 3 to about 5.
    Type: Application
    Filed: January 6, 2021
    Publication date: May 13, 2021
    Applicant: SEAGEN INC.
    Inventors: Eric Sievers, Dana Kennedy
  • Publication number: 20210128742
    Abstract: The invention provides murine, chimeric, and humanized antibodies that specifically bind to CD123 and conjugates thereof.
    Type: Application
    Filed: January 5, 2021
    Publication date: May 6, 2021
    Applicant: Seagen Inc.
    Inventors: May Kung Sutherland, Lori Westendorf, Django Sussman
  • Publication number: 20210095043
    Abstract: Antibody drug conjugates (ADC's) that bind to 158P1D7 protein and variants thereof are described herein. 158P1D7 exhibits tissue specific expression in normal adult tissue, and is aberrantly expressed in glioblastoma, lung cancer, bladder cancer, and breast cancer. Consequently, the ADC's of the invention provide a therapeutic composition for the treatment of cancer.
    Type: Application
    Filed: May 4, 2020
    Publication date: April 1, 2021
    Applicants: AGENSYS, INC., SEAGEN INC.
    Inventors: Robert Kendall MORRISON, Zili AN, Karen Jane Meyrick MORRISON, Josh SNYDER, Xiao-Chi JIA
  • Patent number: 10940178
    Abstract: Methods for the treatment of CD30-expressing cancers are provided. The methods comprise administering to a subject in need thereof a weekly dose of from about 0.8 mg/kg to about 1.8 mg/kg of an antibody-drug conjugate compound having formula (I); or a pharmaceutically acceptable salt thereof; wherein: mAb is an anti-CD30 antibody unit, S is a sulfur atom of the antibody, A- is a Stretcher unit, and p is from about 3 to about 5.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: March 9, 2021
    Assignee: SEAGEN INC.
    Inventors: Eric Sievers, Dana Kennedy
  • Patent number: 10933112
    Abstract: Hydrophilic Linkers, Drug-Linker compounds, Drug-Ligand Conjugate compounds and Ligand-Linkers and methods of making and using the same are provided.
    Type: Grant
    Filed: February 17, 2015
    Date of Patent: March 2, 2021
    Assignee: SEAGEN INC.
    Inventors: Svetlana Doronina, Robert Lyon, Peter Senter