Patents Examined by Sydney Van Druff
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Patent number: 12673109Abstract: The present disclosure provides novel polypeptide-therapeutic compound or hormone-therapeutic compound conjugates using cleavable or non-cleavable linkers, whereby the polypeptide or hormone serves to target specific cells using receptor expression on the targeted cell to bind the ligand (polypeptide or hormone) carrying the therapeutic compound unlike antibody drug conjugates. Upon binding, the ligand and the therapeutic compound (multiples of the therapeutic compound in some embodiments) enter the cell by receptor-mediated endocytosis, and release drugs conjugated to the ligand by linkers, to interact with intracellular components to enhance, restore, or block a signal transduction process. The ligands for the polypeptide-therapeutic compound or hormone-therapeutic compound conjugates include, but are not limited to: cytokines, growth factors and hormones among other proteins with corresponding cell surface specific receptors.Type: GrantFiled: January 12, 2021Date of Patent: July 7, 2026Assignee: IL-2RXInventors: Luis R.B. Soares, Clarence Ray Hurt
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Patent number: 12667625Abstract: The present invention relates to antibody-drug conjugates, wherein the antibody specifically binds to TfR, the transferrin receptor, and wherein the drug is preferably chosen among a cytotoxic drug. Such antibody-drug conjugates are useful in particular in treating proliferative diseases including cancers, such as lymphoma or leukaemia.Type: GrantFiled: April 9, 2019Date of Patent: June 30, 2026Assignee: INATHERYSInventors: Pierre Launay, Hervé Souchet, Coralie Belanger
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Patent number: 12642864Abstract: Provided herein are novel antibody-agent conjugates formed by the introduction of methionine residues to antibody scaffold light or heavy chains at select positions, followed by conjugation of the agent to the methionine, for example, by oxaziridine chemistries. Methionine substitutions at the targeted positions enable highly efficient functionalization to form very stable conjugates, including conjugates suitable for in vivo use. The positions were identified for the trastuzumab and other related scaffolds which can be engineered for affinity to any target antigen. The conjugates include ADCs and detections agents. Also disclosed are novel oxaziridine reagents for conjugation to methionines in proteins.Type: GrantFiled: December 30, 2019Date of Patent: June 2, 2026Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: James Wells, Hai Tran, Susanna Elledge
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Patent number: 12624109Abstract: A chemical compound and a method for treating cancer in a mammal. The chemical compound is a first Markusch structure of A-L1-PEG1-L2-PEG2-CL-X, a second Markusch structure of A-L1-PEG1-N3, or a third Markusch structure of A-L1-PEG1-OMethyl. A-L1-PEG is a targeting structure configured for targeting av integrins in cancer cells and does not include a standard multivalent nitrogen moiety. A is a structure that includes a standard carboxylic acid moiety. L1 and L2 are linking structures. PEG1 and PEG2 are polyethylene glycol structures having n2 and n4 monomer units, respectively, where n2 is in range of 5-72, n4 is in range of 0-67, and n2+n4 is in range of 20-72. CL is a cleavage linker linked to PEG2. X is a chemotherapy linked to CL. N3 is —N?N?N. In one embodiment, the method uses the first Markusch structure to treat the cancer.Type: GrantFiled: April 25, 2023Date of Patent: May 12, 2026Assignee: TargetThera LLCInventors: Shaker A. Mousa, Bruce A. Hay
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Patent number: 12611456Abstract: Provided herein are thiazole amide compounds (e.g., Formula (I)) for use in enhancing human immune response and/or as adjuvants in vaccines. The compounds described herein are used as enhancers of an immune response (e.g., innate and/or adaptive immune response), and are useful in treating and/or preventing a disease, as adjuvants in a vaccine for the disease, (e.g., proliferative disease, inflammatory disease, autoimmune disease, infectious disease, or chronic disease). Also provided in the present disclosure are compositions (e.g., pharmaceutical composition), kits, methods, and uses including or using compounds described herein.Type: GrantFiled: September 16, 2020Date of Patent: April 28, 2026Assignee: Children's Medical Center CorporationInventors: David J. Dowling, Ofer Levy, Francesco Borriello
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Patent number: 12605458Abstract: The present invention provides a special drug conjugate having a hydrophilic acidic stabilization junction. Compared with a conjugate having a lower drug loading, due to the introduction of the acidic stabilization junction, the conjugate in the present invention can also have a higher drug loading (that is, each targeted reagent has more hydrophilic drug junctions), keeps a desired PK property and has a same or better activity in a body.Type: GrantFiled: June 15, 2018Date of Patent: April 21, 2026Assignee: SYSTIMMUNE, INC.Inventors: Yi Zhu, Yiqian Wang, Jie Li, Shi Zhuo, Weili Wan
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Patent number: 12600801Abstract: Single-domain antibodies that bind receptor tyrosine kinase (ROR1) are described. The single-domain antibodies can be used for multiple purposes including in research, imaging, diagnosis, and treatment of ROR1-related conditions. The disclosed single-domain antibodies can be used as anti-cancer therapeutics such as antibody-drug conjugates, multi-domain binding molecules, or recombinant receptors or can be used as cancer imaging/diagnostic agents.Type: GrantFiled: July 11, 2023Date of Patent: April 14, 2026Assignee: Fred Hutchinson Cancer CenterInventors: Jason Price, Colin E. Correnti, James M. Olson
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T cell antigen receptor, multimeric complex thereof, and preparation method therefor and use thereof
Patent number: 12583910Abstract: Provided is an antibody or an antigen-binding fragment thereof, a T cell antigen receptor, an immune cell expressing the T cell antigen receptor (TCR), and a preparation method therefor and the use thereof. The TCR can specifically recognize corresponding pMHC complexes, activate TCR T cells, and produce high-level cytokines IFN?, IL2, TNF?, significantly kill target cells and prolong the life of tumor-bearing mice.Type: GrantFiled: April 23, 2021Date of Patent: March 24, 2026Assignees: TSINGHUA UNIVERSITY, BRISTAR IMMUNOTECH LIMITEDInventors: Lemei Jia, Hua Chen, Wenzhong Li, Jiasheng Wang, Lei Lei, Fang Liu, Xueqiang Zhao, Xin Lin -
Patent number: 12497465Abstract: A pharmaceutical composition, wherein an antibody-drug conjugate in which a drug-linker represented by the following formula (wherein A represents a connecting position to an antibody) is conjugated to the antibody via a thioether bond, and a tubulin inhibitor are administered in combination, and a method of treatment, wherein the antibody-drug conjugate and the tubulin inhibitor are administered in combination to a subject.Type: GrantFiled: August 5, 2019Date of Patent: December 16, 2025Assignee: DAIICHI SANKYO COMPANY, LIMITEDInventors: Yusuke Ogitani, Chiaki Ishii, Yasuki Kamai, Kiyoshi Sugihara, Shotaro Nagase
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Patent number: 12458688Abstract: The present invention relates to epitopes containing homocitrulline (Heit) that can be used as targets for cancer immunotherapy. The homocitrullinated T cell epitope has (i) a predicted binding score to MIC class II or class I of <30 using the online IEDB prediction program (http://www.iedb.org/) and (ii) at least 5 consecutive amino acids that form a spiral conformational structure. These modified peptides can be used as vaccines or as targets for T cell receptor (TCR) and adoptive T cell transfer therapies.Type: GrantFiled: September 11, 2019Date of Patent: November 4, 2025Assignee: Scancell LimitedInventors: Wei Xue, Katherine Wendy Cook, Linda Gillian Durrant, Victoria Anne Brentville
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Patent number: 12428489Abstract: The present disclosure is directed to antibodies binding to PD-L2 and methods of using such antibodies to treat cancers, such as those that express or overexpress PD-L2.Type: GrantFiled: March 20, 2024Date of Patent: September 30, 2025Assignee: Board of Regents, The University of Texas SystemInventors: Michael A. Curran, Ashvin R. Jaiswal, Dongxing Zha, Kui Voo, Carlo Toniatti, Bianka Prinz, Nadthakarn Boland
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Patent number: 12421313Abstract: The present application relates to the field of biomedicine, and relates to a combined pharmaceutical composition for treating biliary tract tumor, liver cancer, triple negative breast cancer or lung cancer. The combined pharmaceutical composition comprises an anti-PD-L1 antibody and anlotinib, and has good anti-biliary tract tumor, liver cancer, triple negative breast cancer or lung cancer activity.Type: GrantFiled: January 23, 2020Date of Patent: September 23, 2025Assignees: Chia Tia Tianqing Pharmaceutical Group Co., Ltd., Nanjing Shunxin Pharmaceuticals Co., Ltd. of Chiatai Tianqing Pharmaceutical GroupInventors: Xiquan Zhang, Xunqiang Wang, Chaoqiang Yang, Yuchen Fan, Mengxue Fan, Fan Feng, Nan Su, Yao Liu, Chi Zhang, Hai Jiang
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Patent number: 12391736Abstract: The present invention relates generally to peptide comprising two or more tumor specific neo open-reading-frame peptides (NOPs), and isolated nucleic acids encoding such peptides, and the uses of these peptides and/or isolated nucleic acids to produce cancer vaccines and the like. With the present invention it becomes possible to provide off-the-shelf cancer vaccines and the like within a short period of time and for potentially 30% of the total population of patients suffering from cancer.Type: GrantFiled: July 25, 2019Date of Patent: August 19, 2025Assignee: CureVac Netherlands B.V.Inventor: Ronald Hans Anton Plasterk
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Patent number: 12377294Abstract: Described herein are novel anti-CD3 Folate antibodies and uses thereof in the treatment of diseases or conditions that would benefit from such.Type: GrantFiled: August 28, 2019Date of Patent: August 5, 2025Assignee: Ambrx, Inc.Inventors: Md Harunur Rashid, Ying Sun, Feng Tian, Sung Ju Moon
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Patent number: 12377163Abstract: Disclosed by the present invention are an anti-B7H3 antibody-exatecan analog conjugate, a preparation method therefor and an anti-tumor medicinal use thereof.Type: GrantFiled: September 25, 2019Date of Patent: August 5, 2025Assignees: JIANGSU HANSOH PHARMACEUTICAL GROUP CO., LTD, SHANGHAI HANSOH BIOMEDICAL CO., LTD, CHANGZHOU HANSOH PHARMACEUTICAL CO., LTDInventors: Hua Ying, Ling Zhang, Ting Zhang, Lei Zhang, Jianyan Xu, Weikang Tao
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Patent number: 12377164Abstract: A conjugate comprising a protein or a peptide, a linker and an active agent, wherein the linker comprises the moiety of formula (III): (III) wherein two of A1, A2 and A3 are N and the other of A1, A2 and A3 is CH; X is selected from N, O and S, and Pep indicates where the moiety is linked to the protein or peptide, either directly or indirectly.Type: GrantFiled: July 31, 2018Date of Patent: August 5, 2025Assignees: ASTRAZENECA AB, CAMBRIDGE ENTERPRISE LIMITEDInventors: Jeremy Stephen Parker, Hannah Fiona Sore, David Robert Spring, Stephen James Walsh
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Patent number: 12358999Abstract: A protein that recognizes a drug moiety of an antibody-drug conjugate in which a drug represented by the following formula is conjugated to an antibody via a linker, and a method for quantifying the concentration in plasma of an antibody-drug conjugate in a mammal to which the antibody-drug conjugate has been administered, by using the protein, and a method for identifying a tissue distribution of an antibody-drug conjugate.Type: GrantFiled: July 26, 2019Date of Patent: July 15, 2025Assignee: DAIICHI SANKYO COMPANY, LIMITEDInventors: Masako Soma, Hiroshi Kuga, Takeshi Masuda, Junko Kawamura, Hiromi Ishibashi, Satoru Yasuda
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Patent number: 12296009Abstract: The invention relates to the field of immunotherapy, more in particular to a composition for use in the treatment of cancer. The invention also relates to a composition obtainable by such a method, such as a pharmaceutical composition. More in particular, the invention relates to an ex vivo method for obtaining a composition suitable for the treatment of cancer in a subject, comprising the steps of providing primary tumor cells derived from the subject, and ex vivo contacting the tumor cells with an inhibitor of a bromodomain and extra-terminal domain family member (BET inhibitor).Type: GrantFiled: September 28, 2018Date of Patent: May 13, 2025Assignee: APGEN THERAPUETICS ABInventors: Jeroen Melief, Rolf Valter Rikard Kiessling
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Patent number: 12280045Abstract: The present invention is intended to provide a novel antitumor agent that shows marked antitumor effects with reduced side effects. The present invention relates to an antitumor agent characterized by coadministration of an acyl thiourea compound represented by general formula (I) or a salt thereof, and an immune checkpoint molecule regulator.Type: GrantFiled: September 6, 2018Date of Patent: April 22, 2025Assignee: TAIHO PHARMACEUTICAL CO., LTD.Inventor: Tomonori Haruma
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Patent number: 12263210Abstract: The invention relates to an immunogenic compound comprising an antigenic peptide having amino acid similarity with a tumor antigen, which antigenic peptide is selected in the group consisting of sequences described in the specification.Type: GrantFiled: August 30, 2022Date of Patent: April 1, 2025Assignee: ENTEROME S.A.Inventors: Laurent Chene, Alban Mathieu, Matthieu Pichaud, Francesco Strozzi