Conjugated Via A Specifically-identified Linking Group, Coupling Agent, Or Conjugation Agent Patents (Class 530/391.9)
  • Patent number: 8741291
    Abstract: The present invention relates to Multifunctional Antibody Conjugates, comprising an antibody or antigen binding portion thereof, comprising at least a fragment of a light chain constant kappa region (CL?) comprising K188 according to Kabat numbering; a linker comprising the formula X-Y-Z, wherein Z is a group is covalently connected to the antibody through the side chain of K188, Y is a linear or branched biologically compatible connecting chain, and X is a group covalently connected to at least one Effector Moiety. The invention further provides specific MAC compounds and compositions of the invention.
    Type: Grant
    Filed: November 28, 2011
    Date of Patent: June 3, 2014
    Assignee: Covx Technologies Ireland, Limited
    Inventors: Abhijit Suresh Bhat, Curt William Bradshaw, Olivier Alexandre Laurent, Alice Lee, Richard Ryan Preston, David Tumelty, Lauren Diane Wood, Wei Hong Yu
  • Patent number: 8742076
    Abstract: The present invention relates to antibody-drug conjugate compounds of Formula I: Ab-(L-D)p??I where one or more nemorubicin metabolite or analog drug moieties (D) are covalently attached by a linker (L) to an antibody (Ab) which binds to one or more tumor-associated antigens or cell-surface receptors. These compounds may be useful in methods of diagnosis or treatment of cancer, and other diseases and disorders.
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: June 3, 2014
    Assignee: Genentech, Inc.
    Inventors: Robert L. Cohen, Edward HyungSuk Ha, Mark E. Reynolds
  • Publication number: 20140141025
    Abstract: The present disclosure provides conjugate structures (e.g., polypeptide conjugates) and hydrazinyl-indole compounds used to produce these conjugates. The disclosure also provides methods of production of such conjugates, as well as methods of using the same.
    Type: Application
    Filed: March 11, 2013
    Publication date: May 22, 2014
    Applicant: REDWOOD BIOSCIENCE, INC.
    Inventors: Romas Alvydas Kudirka, Aaron Edward Albers, Robyn M. Barfield, David Rabuka
  • Publication number: 20140134193
    Abstract: The present invention is directed to novel cytotoxic spliceostatin analogs and derivatives, to antibody drug conjugates thereof, and to methods for using the same to treat medical conditions including cancer.
    Type: Application
    Filed: October 31, 2013
    Publication date: May 15, 2014
    Applicant: PFIZER INC.
    Inventors: Chakrapani SUBRAMANYAM, Frank Erich KOEHN, Kenneth John DIRICO, Alessandra S. EUSTAQUIO, Michael Eric GREEN, Haiyin HE, Min HE, Christopher John O'DONNELL, Sujiet PUTHENVEETIL, Anokha RATNAYAKE, Jesse Alexander TESKE, Hui Yu YANG
  • Publication number: 20140127241
    Abstract: The invention relates to conjugates that bind to targets, methods of using conjugates that bind to targets and methods of treating undesirable or aberrant cell proliferation or hyperproliferative disorders, such as tumors, cancers, neoplasia and malignancies that express a target.
    Type: Application
    Filed: October 30, 2013
    Publication date: May 8, 2014
    Inventors: CAROLA LEUSCHNER, HECTOR ALILA
  • Publication number: 20140127209
    Abstract: The invention relates inter alia to a bivalent, bispecific construct comprising an anti-IL-6 antibody, or derivative thereof, and an anti-IL-23 antibody, or derivative thereof and its use in therapy. The invention also relates to useful anti-IL-6 antibodies and anti-IL-23 antibodies.
    Type: Application
    Filed: March 8, 2013
    Publication date: May 8, 2014
    Inventors: Kenneth GRABSTEIN, William BRADY, Gordon KING, Natalie Winblade NAIRN, Kurt David SHANEBECK, Paul Heffner SLAGLE, Kenneth Christopher THORNTON, Michael Peter VANBRUNT, Andrea WANG, Hengyu XU
  • Publication number: 20140127239
    Abstract: A compound which is either A: or B: and salts and solvates thereof, as well as their conjugates with a cell-binding agent.
    Type: Application
    Filed: October 11, 2013
    Publication date: May 8, 2014
    Applicant: SPIROGEN SARL
    Inventor: Philip Wilson HOWARD
  • Publication number: 20140127240
    Abstract: The present patent application relates to novel binder-drug conjugates (ADCs) of N,N-dialkylauristatins directed against the target epidermal growth factor receptor (EGFR, gene ID 1956), effective metabolites of these ADCs, methods for producing these ADCs, use of these ADCs for treatment and or prevention of diseases as well as the use of these ADCs to produce pharmaceutical drugs for treatment and/or prevention of diseases, in particular hyperproliferative and/or angiogenic diseases such as cancer, for example. Such treatments may be administered as monotherapy or in combination with other pharmaceutical drugs or other therapeutic measures.
    Type: Application
    Filed: April 20, 2012
    Publication date: May 8, 2014
    Applicants: Bayer Pharma Aktiengesellschaft, Bayer Intellectual Property GmbH
    Inventors: Hans-Georg Lerchen, Lars Linden, Sherif El Sheikh, Jörg Willuda, Charlotte C. Kopitz, Joachim Schuhmacher, Simone Greven, Christoph Mahlert, Beatrix Stelte-Ludwig, Sven Golfier, Rudolf Beier, Iring Heisler, Axel Harrenga, Karl-Heinz Thierauch, Sandra Bruder, Heike Petrul, Hannah Jörißen, Sandra Brokowski
  • Publication number: 20140105922
    Abstract: The present invention provides variant target binding agents and methods relating to the use of such binding agents for the prophylaxis or treatment of cancers and immunological disorders. The variant target binding agent is conjugated to a therapeutic agent that exerts a cytotoxic, cytostatic, or immunomodulatory effect on target cells.
    Type: Application
    Filed: March 14, 2013
    Publication date: April 17, 2014
    Applicant: SEATTLE GENETICS, INC.
    Inventor: SEATTLE GENETICS, INC.
  • Publication number: 20140105915
    Abstract: The present invention concerns antigen binding proteins and fragments thereof which specifically bind B Cell Maturation Antigen (BCMA), particularly human BCMA (hBCMA) and which inhibit the binding of BAFF and APRIL to the BCMA receptor. Further disclosed are pharmaceutical compositions, screening and medical treatment methods.
    Type: Application
    Filed: May 24, 2012
    Publication date: April 17, 2014
    Applicant: Glaxo Group Limited
    Inventors: Paul Algate, Stephanie Jane Clegg, Jennifer L. Craigen, Paul Andrew Hamblin, Alan Peter Lewis, Patrick Mayes, Radha Shah Parmar, Trevor Anthony Kenneth Wattam
  • Publication number: 20140093522
    Abstract: The invention relates to a Prodrug activation method, for therapeutics, wherein use is made of abiotic reactive chemical groups that exhibit bio-orthogonal reactivity towards each other. The invention also relates to a Prodrug kit comprising at least one Prodrug and at least one Activator, wherein the Prodrug comprises a Drug and a first Bio-orthogonal Reactive Group (the Trigger), and wherein the Activator comprises a second Bio-orthogonal Reactive Group. The invention also relates to targeted therapeutics used in the above-mentioned method and kit. The invention particularly pertains to antibody-drug conjugates and to bi- and trispecific antibody derivatives.
    Type: Application
    Filed: May 16, 2012
    Publication date: April 3, 2014
    Applicant: KONINKLIJKE PHILIPS N.V.
    Inventors: Marc Stefan Robillard, Hendricus Marie Janssen, Wolter Ten Hoeve, Ronny Mathieu Versteegen, Raffaella Rossin
  • Publication number: 20140093523
    Abstract: The invention relates to conjugates of anti-integrin specific antibodies with cytotoxic compounds, the synthesis, selection, and use of such conjugates for use in cancer therapy or other diseases mediated by cell proliferation, cell migration, or inflammation and which pathology involves angiogenesis or neovascularization of new tissue. In addition the invention relates to combination therapy of such diseases wherein the treatment comprises use of said conjugates in combination with one or more other treatment modalities including but not limited to: chemotherapy, surgery or radiation therapy. The preferred conjugates contain maytansinoid compounds linked to the antibody by a disulfide linkage, and preferred chemotherapeutic agents are doxorubicin, a taxane, a camptothecin, a podophyllotoxin, a nucleoside analog, or a pyrimidine analog.
    Type: Application
    Filed: December 4, 2013
    Publication date: April 3, 2014
    Applicants: Immunogen, Inc., Janssen Biotech, Inc.
    Inventors: Qiming Chen, Mohit Trikha, Robert J. Lutz, Rita M. Steeves, Godfrey Amphlett
  • Publication number: 20140088089
    Abstract: The invention relates to novel benzodiazepine derivatives with antiproliferative activity and more specifically to novel benzodiazepine compounds, such as those in formulas (V)-(VII). The invention also provides conjugates of the benzodiazepine compounds linked to a cell-binding agent. The invention further provides compositions and methods useful for inhibiting abnormal cell growth or treating a proliferative disorder in a mammal using the compounds or conjugates of the invention. The present invention is further directed to methods of preparing a conjugate of a cell-binding agent and a cytotoxic compound. The methods comprise the use of an imine reactive compound to enable efficient conjugations of cytotoxic compounds with cell binding agents.
    Type: Application
    Filed: February 15, 2012
    Publication date: March 27, 2014
    Applicant: ImmunoGen, INC.
    Inventor: Ravi V.J. Chari
  • Patent number: 8680315
    Abstract: The present invention provides methods and compositions that permit controlled and prolonged drug release in vivo. The compounds are either prodrugs with tunable rates of release, or conjugates of the drug with macromolecules which exhibit tunable controlled rates of release.
    Type: Grant
    Filed: June 26, 2009
    Date of Patent: March 25, 2014
    Assignee: Prolynx, LLC
    Inventors: Daniel V. Santi, Gary W. Ashley
  • Publication number: 20140081005
    Abstract: Disclosed are anti-5T4 antibody drug conjugates and methods for preparing and using the same.
    Type: Application
    Filed: October 14, 2013
    Publication date: March 20, 2014
    Applicant: WYETH LLC
    Inventors: Hans-Peter Gerber, John Francis DiJoseph, Kiran Manohar Khandke, Kimberly Ann Marquette, Puja Sapra, Lioudmila Gennadievna Tchistiakova
  • Publication number: 20140079722
    Abstract: Antibodies targeting the dysadherin subunit of the human Na,K-ATPase signaling complex that are covalently linked via a stable linker to steroid drugs that bind the alpha subunit of that complex are useful in the treatment of cancer.
    Type: Application
    Filed: March 9, 2012
    Publication date: March 20, 2014
    Applicant: CENTROSE, LLC
    Inventor: James R. Prudent
  • Publication number: 20140072586
    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: August 23, 2013
    Publication date: March 13, 2014
    Applicants: SEATTLE GENETICS, INC., AGENSYS, INC.
    Inventors: Robert Kendall MORRISON, Zili AN, Karen Jane Meyrick MORRISON, Josh SNYDER, Xiao-Chi JIA
  • Publication number: 20140065171
    Abstract: The present invention provides methods of site-specific labeling of antibodies, using proteins having 4?-phosphopantetheinyl transferase activity that catalyze post-translational modification of peptide sequences (“peptide tags”) incorporated into one or more specific sites of an antibody of interest. Enzymatic labeling enables quantitative and irreversible covalent modification of a specific serine residue within the peptide tags incorporated into the antibody, and thus creates desirable antibody conjugates.
    Type: Application
    Filed: May 31, 2013
    Publication date: March 6, 2014
    Inventors: Bernhard Hubert GEIERSTANGER, Jan GRUNEWALD, Badry BURSULAYA
  • Publication number: 20140058067
    Abstract: The present invention relates to therapeutic conjugates with improved ability to target various diseased cells containing a targeting moiety (such as an antibody or antibody fragment), a linker and a therapeutic moiety, and further relates to processes for making and using the conjugates.
    Type: Application
    Filed: October 8, 2013
    Publication date: February 27, 2014
    Applicant: IMMUNOMEDICS, INC.
    Inventors: Serengulam V. Govindan, Sung-Ju Moon, David M. Goldenberg
  • Publication number: 20140056926
    Abstract: The present invention relates to a complex in which an anti-cotinine antibody is bound to a conjugate of a binding material and cotinine, and a use of the complex. The complex according to the present invention may be used as an analysis tool in an in vitro biological assay method, and may retain the specific reactivity and the biological function of the binding material, and the capabilities of inducing complement-mediated cell cytotoxicity (CDC) and antibody-dependent cell cytotoxicity (ADCC) and a prolonged in vivo half-life, which are intrinsic characteristics of an antibody.
    Type: Application
    Filed: April 16, 2012
    Publication date: February 27, 2014
    Applicant: SNU R&DB FOUNDATION
    Inventors: Junho Chung, Sunyoung Park, Do Been Hwang, Hwa Kyoung Lee
  • Publication number: 20140050746
    Abstract: Drug Linker compounds and Drug Linker Ligand conjugates are provided that have auristatins linked via the C-terminus. The conjugates show efficacy without the need for a self-immolative group to release the drug.
    Type: Application
    Filed: October 23, 2013
    Publication date: February 20, 2014
    Applicant: Seattle Genetics, Inc.
    Inventors: Peter Senter, Svetlana Doronina, Timothy Bovee
  • Publication number: 20140051836
    Abstract: Provided herein are modified Fc proteins comprising non-natural amino acid residues at site-specific positions, conjugates of the modified Fc proteins for therapy or diagnosis, compositions comprising the modified Fc proteins and conjugates thereof, methods of their production and methods of their use. The modified Fc proteins and conjugates are useful for methods of treatment and prevention, methods of detection and methods of diagnosis.
    Type: Application
    Filed: June 26, 2013
    Publication date: February 20, 2014
    Inventors: Christopher D. Thanos, Leslie McEvoy, Gang Yin, Kalyani Penta, Ramesh Baliga, Sunil Bajad, Sonia Pollitt, Chris Murray, Alex Steiner, Avinash Gill
  • Publication number: 20140045242
    Abstract: The present invention concerns methods and compositions for forming anti-cancer vaccine complexes. In preferred embodiments, the anti-cancer vaccine complex comprises an antibody moiety that binds to dendritic cells, such as an anti-CD74 antibody or antigen-binding fragment thereof, attached to an AD (anchoring domain) moiety and a xenoantigen, such as CD20, attached to a DDD (dimerization and docking domain) moiety, wherein two copies of the DDD moiety form a dimer that binds to the AD moiety, resulting in the formation of the vaccine complex. The anti-cancer vaccine complex is capable of inducing an immune response against xenoantigen expressing cancer cells, such as CD138negCD20+ MM stem cells, and inducing apoptosis of and inhibiting the growth of or eliminating the cancer cells.
    Type: Application
    Filed: September 16, 2013
    Publication date: February 13, 2014
    Applicant: IBC PHARMACEUTICALS, INC.
    Inventors: Chien-Hsing Chang, David M. Goldenberg
  • Publication number: 20140046030
    Abstract: Provided herein are antibodies comprising non-natural amino acid residues at site-specific positions, compositions comprising the antibodies, methods of their production and methods of their use. The antibodies are useful for methods of treatment and prevention, methods of detection and methods of diagnosis.
    Type: Application
    Filed: June 7, 2013
    Publication date: February 13, 2014
    Applicant: Sutro Biopharma, Inc.
    Inventors: Christopher D. Thanos, Leslie McEvoy, Gang Yin, Kalyani Penta, Ramesh Baliga, Sunil Bajad, Sonia Pollitt, Chris Murray, Alex Steiner, Avinash Gill
  • Publication number: 20140039158
    Abstract: Methods of preparing polymer target conjugates which are substantially free of polymer attachment on the N-terminal of the targets are provided. Also provided are compositions comprising a plurality of polymer-polypeptide conjugates, said polymer-polypeptide conjugate comprising a polypeptide covalently attached to at least one polymer through an epsilon amino group of a Lysine or a Histidine found on the polypeptide and said conjugates containing less than 5% of the polymer-polypeptide conjugates having a polymer attached to the N-terminal of the polypeptide; and polymer target conjugates comprising a target moiety selected from the group consisting of polypeptides, proteins and the like having at least one polymer attached thereto at a site which is not the N-terminal of the target.
    Type: Application
    Filed: July 25, 2013
    Publication date: February 6, 2014
    Applicant: Belrose Pharma, Inc.
    Inventor: Hong Zhao
  • Publication number: 20140030273
    Abstract: Isolated human monoclonal antibodies which bind to human CD74 and related antibody-drug conjugates are disclosed. Pharmaceutical compositions comprising the antibodies or antibody-drug conjugates, and therapeutic and diagnostic methods for using the antibodies and/or antibody-drug conjugates, are also disclosed.
    Type: Application
    Filed: February 1, 2012
    Publication date: January 30, 2014
    Applicant: GENMAB A/S
    Inventors: Sandra Verploegen, Marije Overdijk, Riemke Van Dijkhuizen, Willem Karel Bleeker, Patrick Van Berkel, Paul Parren, Steen Lisby
  • Publication number: 20140030280
    Abstract: The invention provides anti-CD79b antibodies and immunoconjugates and methods of using the same.
    Type: Application
    Filed: July 8, 2013
    Publication date: January 30, 2014
    Applicant: Genentech, Inc.
    Inventors: Paul Polakis, Andrew Polson, Susan Diane Spencer, Shang-Fan Yu
  • Publication number: 20140030281
    Abstract: The invention provides anti-CD22 antibodies and immunoconjugates and methods of using the same.
    Type: Application
    Filed: July 8, 2013
    Publication date: January 30, 2014
    Applicant: Genentech, Inc.
    Inventors: Paul Polakis, Andrew Polson, Susan Diane Spencer, Shang-Fan Yu, Bing Zheng
  • Publication number: 20140030279
    Abstract: The invention provides anti-CD22 antibodies and immunoconjugates and methods of using the same.
    Type: Application
    Filed: July 8, 2013
    Publication date: January 30, 2014
    Applicants: Spirogen Sarl, Genentech, Inc.
    Inventors: Paul Polakis, Andrew Polson, Susan Diane Spencer, Shang-Fan Yu, John A. Flygare, Janet L. Gunzner-Toste, Thomas Harden Pillow, Philip Wilson Howard, Luke Masterson
  • Publication number: 20140030282
    Abstract: The invention provides anti-CD79b antibodies and immunoconjugates and methods of using the same.
    Type: Application
    Filed: July 8, 2013
    Publication date: January 30, 2014
    Applicant: Genentech, Inc.
    Inventors: Paul Polakis, Andrew Polson, Susan Diane Spencer, Shang-Fan Yu, Bing Zheng
  • Publication number: 20140023666
    Abstract: The present invention relates to new auristatin compounds and prodrugs thereof, compositions comprising them and uses thereof.
    Type: Application
    Filed: March 29, 2012
    Publication date: January 23, 2014
    Inventors: George R. Pettit, Fiona Hogan, Steven Toms
  • Publication number: 20140010810
    Abstract: This invention relates generally to the generation of antibodies, e.g., monoclonal antibodies including fully human monoclonal antibodies, that recognize Jagged 1 and/or Jagged 2, to antibodies, e.g., monoclonal antibodies including fully human antibodies that recognize Jagged 1 and/or Jagged 2, and nucleic acid molecules that encode antibodies, e.g., nucleic acid molecules that encode monoclonal antibodies including fully human cross-reactive antibodies that recognize both Jagged 1 and Jagged 2, and to methods of making the anti-Jagged antibodies and methods of using the anti-Jagged antibodies as therapeutics, prophylactics, and diagnostics. The invention also relates generally to activatable antibodies that include a masking moiety (MM), a cleavable moiety (CM), and an antibody (AB) that specifically bind to Jagged 1 and Jagged 2, and to methods of making and using these activatable anti-Jagged antibodies in a variety of therapeutic, diagnostic and prophylactic indications.
    Type: Application
    Filed: June 21, 2013
    Publication date: January 9, 2014
    Inventors: James William West, Jason Gary Sagert, Paul H. Bessette, Henry Bernard Lowman, Nancy E. Stagliano, Olga Vasiljeva, Elizabeth-Edna Mary Menendez
  • Patent number: 8624003
    Abstract: This invention describes a method of conjugating a cell binding agent such as an antibody with an effector group (e.g., a cytotoxic agent) or a reporter group (e.g., a radionuclide), whereby the reporter or effector group is first reacted with a bifunctional linker and the mixture is then used without purification for the conjugation reaction with the cell binding agent. The method described in this invention is advantageous for preparation of stably-linked conjugates of cell binding agents, such as antibodies with effector or reporter groups. This conjugation method provides in high yields conjugates of high purity and homogeneity that are without inter-chain cross-linking and inactivated linker residues.
    Type: Grant
    Filed: June 3, 2010
    Date of Patent: January 7, 2014
    Assignee: ImmunoGen, Inc.
    Inventors: Brenda A. Kellogg, Rajeeva Singh, Ravi V. J. Chari
  • Patent number: 8613930
    Abstract: Charged or pro-charged cross-linking moieties and conjugates of cell binding agents and drugs comprising the charged or pro-charged cross-linking moieties and method of making the same.
    Type: Grant
    Filed: July 5, 2012
    Date of Patent: December 24, 2013
    Assignee: ImmunoGen, Inc.
    Inventors: Ravi V. J. Chari, Robert Yongxin Zhao, Yelena Kovtun, Rajeeva Singh, Wayne Charles Widdison
  • Publication number: 20130336885
    Abstract: The invention provides anti-LgR5 antibodies and immunoconjugates and methods of using the same.
    Type: Application
    Filed: March 29, 2013
    Publication date: December 19, 2013
    Applicant: GENENTECH INC.
    Inventors: Jo-Anne Hongo, Weiguang Mao, Paul Polakis, Andrew Polson, Rajesh Vij, Yan Wu, Wei-Ching Liang
  • Patent number: 8609105
    Abstract: Drug Linker compounds and Drug Linker Ligand conjugates are provided that have auristatins linked via the C-terminus. The conjugates show efficacy without the need for a self-immolative group to release the drug.
    Type: Grant
    Filed: March 18, 2009
    Date of Patent: December 17, 2013
    Assignee: Seattle Genetics, Inc.
    Inventors: Peter Senter, Svetlana Doronina, Timothy Bovee
  • Patent number: 8603483
    Abstract: The invention relates to conjugates of anti-integrin specific antibodies with cytotoxic compounds, the synthesis, selection, and use of such conjugates for use in cancer therapy or other diseases mediated by cell proliferation, cell migration, or inflammation and which pathology involves angiogenesis or neovascularization of new tissue. In addition the invention relates to combination therapy of such diseases wherein the treatment comprises use of said conjugates in combination with one or more other treatment modalities including but not limited to: chemotherapy, surgery or radiation therapy. The preferred conjugates contain maytansinoid compounds linked to the antibody by a disulfide linkage, and preferred chemotherapeutic agents are doxorubicin, a taxane, a camptothecin, a podophyllotoxin, a nucleoside analog, or a pyrimidine analog.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: December 10, 2013
    Assignees: Janssen Biotech, Inc., Immunogen, Inc.
    Inventors: Qiming Chen, Mohit Trikha, Robert J. Lutz, Rita M. Steeves, Godfrey Amphlett
  • Publication number: 20130323169
    Abstract: The present invention relates to linker molecules that readily conjugate cellular recognition ligand at one end and drug payload at the other, and are useful in treating or preventing cancer, an autoimmune disease, an inflammatory condition, a central nervous system disorder or an infection.
    Type: Application
    Filed: May 31, 2013
    Publication date: December 5, 2013
    Inventors: Ze-Qi Xu, Qianli Wang, Augustine Rudolph Joseph, Zhiqiang Fang
  • Publication number: 20130324706
    Abstract: The present invention relates to method for connecting a protein and a drug to a protein drug conjugate, wherein the drug is linked to the protein through a specific branched linker, said branched linker comprises a peptide chain and is derived from o-hydroxy p-amino benzylic alcohol, wherein the peptide chain is connected to the phenyl ring via the p-amino group, the drug is connected to the phenyl ring via the benzylic alcohol moiety, and the protein is connected to the phenyl ring via the o-hydroxy group; further to a process for the preparation of said protein-drug-conjugates via various intermediates, to the pharmaceutical use of such protein drug conjugates, such as methods of controlling the growth of undesirable cells, to pharmaceutical compositions comprising such protein drug conjugates, and to intermediates of the preparation of the protein drug conjugates.
    Type: Application
    Filed: February 23, 2012
    Publication date: December 5, 2013
    Inventors: Laurent Ducry, Bernhard Stump, Heilam Wong, Jin She, Gayle Phillips
  • Publication number: 20130323268
    Abstract: New ansamitocin derivatives bearing a linking group are disclosed. Also disclosed are methods for the synthesis of these new ansamitocin derivatives and methods for their linkage to cell-binding agents. The ansamitocin derivative-cell-binding agent conjugates are useful as therapeutic agents, which are delivered specifically to target cells and are cytotoxic. These conjugates display vastly improved therapeutic efficacy in animal tumor models compared to the previously described agents.
    Type: Application
    Filed: November 3, 2011
    Publication date: December 5, 2013
    Applicant: IMMUNOGEN, INC.
    Inventors: Ravi V.J. Chari, Wayne C. Widdison, Sharon D. Wilhelm
  • Publication number: 20130323234
    Abstract: The present invention relates to a polypeptide comprising 7 ?-strands A, B, C, D, E, F, and G sequentially connected together by connecting chains of amino acids, and a first ?-helix sequentially located on the EF chain between ?-strands E and F, wherein the ?-strands are arranged so as to form a first ?-sheet comprising ?-strands A, B, D, and E, and a second ?-sheet comprising ?-strands C, F and G, said first and second ?-sheets being covalently bonded together so as to form a first Ig domain; wherein the EF chain between ?-strands E and F comprises the sequence X1-X2-X3-X4-K5H6 (SEQ ID NO:98), and X1, X3 and X4 are each independently any amino acid residue, characterized in that X2 is selected from the group consisting of A, G, I, V, L, R, S, T, Q, P, N, M, H, W, and pharmaceutically acceptable salts, stereoisomers, tautomers, solvates, and prodrugs thereof
    Type: Application
    Filed: January 7, 2013
    Publication date: December 5, 2013
    Applicant: COVX TECHNOLOGIES IRELAND LIMITED
    Inventor: Covx Technologies Ireland Limited
  • Patent number: 8598323
    Abstract: Described are Galectin-1/Ig fusion constructs and methods of use thereof, e.g., in diagnostic and biomedical assays, and as therapeutic agents for the treatment of conditions associated with immune dysfunction, e.g., autoimmune diseases, and cancers.
    Type: Grant
    Filed: June 22, 2010
    Date of Patent: December 3, 2013
    Assignee: The Brigham and Women's Hospital, Inc.
    Inventors: Charles J. Dimitroff, Filiberto Cedeno Laurent, Steven R. Barthel
  • Publication number: 20130317201
    Abstract: It is an object of the present invention to provide an anti-cadherin antibody having a high internalization capacity and provide an anti-cadherin antibody-drug conjugate that effectively kills cadherin-expressing cancer cells with the use of such antibody. The present invention provides an anti-cadherin antibody which recognizes a cadherin domain 1 (EC1) of cadherin and exhibits a high internalization capacity.
    Type: Application
    Filed: October 28, 2011
    Publication date: November 28, 2013
    Applicant: PERSEUS PROTEOMICS INC.
    Inventors: Keisuke Ishii, Keiko Katsumi, Tadashi Matsuura, Yukio Sudo, Katsuyuki Mitomo, Katsushi Kouda
  • Publication number: 20130309257
    Abstract: In one aspect, there is provided a protein-drug conjugate compound comprising a protein covalently attached by a linker to one or more drug moieties, wherein the linker has a half-life of from 1 hour to 50 hours in phosphate buffered saline at 37° C. A carbonyl derivative of LU103793 is also described that can be used in a protein-drug conjugate compound comprising an antibody covalently attached by a linker to the drug moiety comprising, consisting or consisting essentially of the carbonyl derivative.
    Type: Application
    Filed: March 25, 2013
    Publication date: November 21, 2013
    Applicant: Philogen S.P.A.
    Inventor: Casi Giulio
  • Publication number: 20130309256
    Abstract: The present invention provides Ligand-Drug Conjugates, Drug-Linkers, Linkers, and Ligand-Linker Conjugates comprising a self-stabilizing linker assembly component.
    Type: Application
    Filed: March 13, 2013
    Publication date: November 21, 2013
    Inventor: Seattle Genetics, Inc.
  • Publication number: 20130302359
    Abstract: The invention relates to novel benzodiazepine derivatives with antiproliferative activity and more specifically to novel benzodiazepine compounds of formula (I)-(VII). The invention also provides conjugates of the benzodiazepine compounds linked to a cell-binding agent. The invention further provides compositions and methods useful for inhibiting abnormal cell growth or treating a proliferative disorder in a mammal using the compounds or conjugates of the invention.
    Type: Application
    Filed: March 14, 2013
    Publication date: November 14, 2013
    Inventors: Wei Li, Michael Louis Miller, Nathan Elliott Fishkin, Ravi V.J. Chari
  • Publication number: 20130295104
    Abstract: Novel anti-cancer agents, including, but not limited to, antibodies and immunoconjugates, that bind to CD37 are provided. Methods of using the agents, antibodies, or immunoconjugates, such as methods of inhibiting tumor growth are further provided.
    Type: Application
    Filed: March 12, 2013
    Publication date: November 7, 2013
    Inventors: Jutta DECKERT, Peter Park, Daniel Tavares, Lingyun Rui
  • Publication number: 20130295007
    Abstract: The invention provides anti-PMEL17 antibodies and immunoconjugates and methods of using the same.
    Type: Application
    Filed: April 30, 2013
    Publication date: November 7, 2013
    Applicant: GENENTECH, INC.
    Inventors: Youjun Chen, William Mallet, Paul Polakis, Christine Tan, Jyoti Asundi, Suzanna Clark
  • Publication number: 20130281678
    Abstract: The invention provides a process for preparing a cell-binding agent chemically coupled to a drug. The process comprises covalently attaching a linker to a cell-binding agent, a purification step, conjugating a drug to the cell-binding agent and a subsequent purification step.
    Type: Application
    Filed: February 25, 2013
    Publication date: October 24, 2013
    Inventors: Yong DAI, Yong WANG, Shengjin JIN, Deborah H. MESHULAM, Godfrey W. AMPHLETT
  • Publication number: 20130280281
    Abstract: The present invention relates to short polypeptides (e.g., fewer than 19 amino acids in length) and longer polypeptides (e.g., 19 or more amino acids in length) having one or more D-amino acids as targeting moieties. These polypeptides, when conjugated to agents (e.g., therapeutic agents or transport vectors) are capable of transporting the agents across the BBB or into particular cell types. In particular, the short polypeptides can include one or more D-amino acids. These compounds are therefore particularly useful in the treatment of neurological diseases or diseases associated with particular cell types, organs, or tissues.
    Type: Application
    Filed: July 4, 2011
    Publication date: October 24, 2013
    Inventors: Jean-Paul Castaigne, Michel Demeule, Christian Che, Carine Thiot, Laurence Peslherbe