Patents Assigned to APTEVO RESEARCH AND DEVELOPMENT LLC
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Patent number: 11939392Abstract: The present disclosure relates to protein molecules that specifically bind to CD123, which may have at least one humanized or human CD123-binding domain. Such molecules are useful for the treatment of cancer. The protein molecule binding to CD123 may have a second binding domain that binds to another target. In one embodiment, multi-specific polypeptide molecules bind both CD123-expressing cells and the T-cell receptor complex on T-cells to induce target-dependent T-cell cytotoxicity, activation, and proliferation. The disclosure also provides pharmaceutical compositions comprising the CD123-binding polypeptide molecules, nucleic acid molecules encoding these polypeptides and methods of making these molecules.Type: GrantFiled: December 21, 2021Date of Patent: March 26, 2024Assignee: Aptevo Research and Development LLCInventors: Gabriela Hernandez-Hoyos, Elaine T. Sewell, Catherine J. McMahan, David Bienvenue, John W. Blankenship, Danielle Mitchell, Peter Pavlik
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Patent number: 11352426Abstract: The present disclosure relates to protein molecules that specifically bind to CD3, which may have at least one humanized CD3-binding domain. Such molecules are useful for the treatment of cancer. The protein molecule binding to CD3 may have a second binding domain that binds to another target. In one embodiment, multispecific polypeptide molecules bind both tumor antigen-expressing cells and the CD3 subunit of a T-cell receptor complex on T-cells to induce target-dependent T-cell cytotoxicity, activation, and proliferation. The disclosure also provides pharmaceutical compositions comprising the CD3-binding poypeptide molecules, nucleic acid molecules encoding these polypeptides and methods of making these molecules.Type: GrantFiled: September 21, 2016Date of Patent: June 7, 2022Assignee: APTEVO RESEARCH AND DEVELOPMENT LLCInventors: Philip Tan, John W. Blankenship
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Patent number: 11312786Abstract: The present disclosure relates to protein molecules that specifically bind to 5T4 and/or 4-1BB. The molecules may have at least one humanized 5T4-binding or 4-1BB-binding domain. Such molecules are useful for the treatment of cancer. The protein molecule binding to 5T4 or 4-1BB may have a second binding domain that binds to another target. The molecules may bind both 5T4-expressing cells and a cell-surface molecule expressed by an effector cell to enhance effector cell activation, proliferation, survival and/or effector-cell mediated cytotoxicity. The disclosure also provides pharmaceutical compositions comprising the 5T4-binding or 4-1BB-binding polypeptide or protein molecules, nucleic acid molecules encoding these polypeptides and methods of making and using these molecules.Type: GrantFiled: February 21, 2019Date of Patent: April 26, 2022Assignees: Aptevo Research and Development LLC, Alligator Bioscience ABInventors: David Bienvenue, Gabriela Hernandez-Hoyos, Lynda Misher, Danielle Mitchell, Peter Ellmark, Anna Sall, Christina Furebring, Laura von Schantz, Sara Fritzell, Laura Varas
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Patent number: 11242400Abstract: The present disclosure relates to protein molecules that specifically bind to CD123, which may have at least one humanized or human CD123-binding domain. Such molecules are useful for the treatment of cancer. The protein molecule binding to CD123 may have a second binding domain that binds to another target. In one embodiment, multi-specific polypeptide molecules bind both CD123-expressing cells and the T-cell receptor complex on T-cells to induce target-dependent T-cell cytotoxicity, activation, and proliferation. The disclosure also provides pharmaceutical compositions comprising the CD123-binding polypeptide molecules, nucleic acid molecules encoding these polypeptides and methods of making these molecules.Type: GrantFiled: September 21, 2017Date of Patent: February 8, 2022Assignee: Aptevo Research and Development LLCInventors: Gabriela Hernandez-Hoyos, Elaine T. Sewell, Catherine J. McMahan, David Bienvenue, John W. Blankenship, Danielle Mitchell, Peter Pavlik
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Patent number: 10676533Abstract: The present disclosure relates to protein molecules that specifically bind to CD123, which may have at least one humanized or human CD123-binding domain. Such molecules are useful for the treatment of cancer. The protein molecule binding to CD123 may have a second binding domain that binds to another target. In one embodiment, multi-specific polypeptide molecules bind both CD123-expressing cells and the T-cell receptor complex on T-cells to induce target-dependent T-cell cytotoxicity, activation, and proliferation. The disclosure also provides pharmaceutical compositions comprising the CD123-binding polypeptide molecules, nucleic acid molecules encoding these polypeptides and methods of making these molecules.Type: GrantFiled: March 22, 2018Date of Patent: June 9, 2020Assignee: Aptevo Research and Development LLCInventors: Gabriela Hernandez-Hoyos, Elaine T. Sewell, Catherine J. McMahan, David Bienvenue, John W. Blankenship, Danielle Mitchell, Peter Pavlik
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Patent number: 10307481Abstract: The present invention generally provides methods for B-cell reduction in an individual using CD37-specific binding molecules. In particular, the invention provides methods for B-cell reduction using CD37-specific binding molecules alone, or a combination of CD37-specific binding molecules and CD20-specific binding molecules, in some instances a synergistic combination. The invention further provides materials and methods for treatment of diseases involving aberrant B-cell activity. In addition, the invention provides humanized CD37-specific binding molecules.Type: GrantFiled: July 25, 2006Date of Patent: June 4, 2019Assignee: Aptevo Research and Development LLCInventors: Laura S. Grosmaire, Martha S. Hayden-Ledbetter, Jeffrey A. Ledbetter, Peter A. Thompson, Sandy A. Simon, William Brady
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Patent number: 10239949Abstract: The present disclosure relates to protein molecules that specifically bind to 5T4 and/or 4-1BB. The molecules may have at least one humanized 5T4-binding or 4-1BB-binding domain. Such molecules are useful for the treatment of cancer. The protein molecule binding to 5T4 or 4-1BB may have a second binding domain that binds to another target. The molecules may bind both 5T4-expressing cells and a cell-surface molecule expressed by an effector cell to enhance effector cell activation, proliferation, survival and/or effector-cell mediated cytotoxicity. The disclosure also provides pharmaceutical compositions comprising the 5T4-binding or 4-1BB-binding polypeptide or protein molecules, nucleic acid molecules encoding these polypeptides and methods of making and using these molecules.Type: GrantFiled: July 20, 2018Date of Patent: March 26, 2019Assignees: Aptevo Research and Development, LLC, Alligator Bioscience ABInventors: David Bienvenue, Gabriela Hernandez-Hoyos, Lynda Misher, Danielle Mitchell, Peter Ellmark, Anna Sall, Christina Furebring, Laura von Schantz, Sara Fritzell, Laura Varas
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Patent number: 10202452Abstract: The present invention relates to mono-specific and multi-specific polypeptides that specifically bind or interact with CD3. These polypeptides can be, but are not limited to, antibodies, fragments thereof, scFvs, Fabs, di-scFvs single domain antibodies, diabodies, dual variable domain binding proteins and polypeptides containing an antibody or antibody fragments. In one embodiment, a multi-specific polypeptide binds both a T-cell receptor complex on T-cells and a tumor antigen to induce target-dependent T-cell cytotoxicity, activation and proliferation.Type: GrantFiled: April 18, 2013Date of Patent: February 12, 2019Assignee: Aptevo Research and Development LLCInventors: Philip H Tan, Sateesh K Natarajan, Catherine J McMahan
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Patent number: 10143748Abstract: The present invention generally provides methods for B-cell reduction in an individual using CD37-specific binding molecules. In particular, the invention provides methods for B-cell reduction using CD37-specific binding molecules alone, or a combination of CD37-specific binding molecules and CD20-specific binding molecules, in some instances a synergistic combination. The invention further provides materials and methods for treatment of diseases involving aberrant B-cell activity. In addition, the invention provides humanized CD37-specific binding molecules.Type: GrantFiled: March 15, 2013Date of Patent: December 4, 2018Assignee: Aptevo Research and Development LLCInventors: Laura Sue Grosmaire, Martha Susan Hayden-Ledbetter, Jeffrey A. Ledbetter, Peter Armstrong Thompson, Sandy Alexander Simon, William Brady
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Publication number: 20180118823Abstract: Multivalent binding peptides, including bi-specific binding peptides, having immunoglobulin effector function are provided, along with encoding nucleic acids, vectors and host cells as well as methods for making such peptides and methods for using such peptides to treat or prevent a variety of diseases, disorders or conditions, as well as to ameliorate at least one symptom associated with such a disease, disorder or condition.Type: ApplicationFiled: June 8, 2017Publication date: May 3, 2018Applicant: APTEVO RESEARCH AND DEVELOPMENT LLCInventors: Peter Armstrong THOMPSON, Jeffrey A. LEDBETTER, Martha Susan HAYDEN-LEDBETTER, Laura Sue GROSMAIRE, Robert BADER, William BRADY
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Patent number: 9782478Abstract: The present invention relates to mono-specific and multi-specific polypeptide therapeutics that specifically target cells expressing prostate-specific membrane antigen (PSMA) and are useful for the treatment of prostate cancer (e.g., castrate-resistant prostate cancer), tumor-related angiogenesis or benign prostatic hyperplasia (BPH). In one embodiment, the multi-specific polypeptide therapeutics bind both PSMA-expressing cells and the T-cell receptor complex on T cells to induce target-dependent T-cell cytotoxicity, activation and proliferation.Type: GrantFiled: May 3, 2017Date of Patent: October 10, 2017Assignee: Aptevo Research and Development LLCInventors: John W. Blankenship, Elaine Todd Sewell, Philip Tan
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Patent number: 9493564Abstract: This disclosure provides a multi-specific fusion protein composed of a CD86 antagonist binding domain and another binding domain that is an IL-10 agonist, an HLA-G agonist, an HGF agonist, an IL-35 agonist, a PD-1 agonist, a BTLA agonist, a LIGHT antagonist, a GITRL antagonist or a CD40 antagonist. The multi-specific fusion protein may also include an intervening domain that separates the other domains. This disclosure also provides polynucleotides encoding the multi-specific fusion proteins, compositions of the fusion proteins, and methods of using the multi-specific fusion proteins and compositions.Type: GrantFiled: October 2, 2009Date of Patent: November 15, 2016Assignee: APTEVO RESEARCH AND DEVELOPMENT LLCInventors: Peter Armstrong Thompson, Peter Robert Baum, Philip Tan, John W. Blankenship, Sateesh Kumar Natarajan