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
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
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.
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.
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
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
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
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
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
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.
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
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
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
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
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.
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
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.
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