Patents by Inventor Kristian Pietras

Kristian Pietras has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20230310385
    Abstract: Disclosed is that ER-negative breast cancers can be converted into ER positive breast cancers, such as to a breast cancer of luminal-like phenotype, by treatment with anti-PDGF-CC antibodies. ER-positive breast cancers, including luminal-like breast cancers can be treated with anti-estrogen treatment. On this basis the present disclosure finds that surprisingly, ER-negative breast cancers can be treated with anti-estrogen treatment, if the treatment is combined with treatment with anti-PDGF-CC antibodies. Said treatment may for example be an adjuvant treatment, for example a treatment aiming at reducing the risk of relapse of a breast cancer after removal of the primary tumor by surgery.
    Type: Application
    Filed: March 14, 2023
    Publication date: October 5, 2023
    Inventors: Ulf Eriksson, Kristian Pietras, Pernilla Roswall
  • Patent number: 11633382
    Abstract: The invention discloses that ER-negative breast cancers can be converted into ER positive breast cancers, such as to a breast cancer of luminal-like phenotype by treatment with anti-PDGF-CC antibodies. ER-positive breast cancers, including luminal-like breast cancers can be treated with anti-estrogen treatment. On this basis the invention discloses that surprisingly, ER-negative breast cancers can be treated with anti-estrogen treatment, if the treatment is combined with treatment with anti-PDGF-CC antibodies. Said treatment may for example be an adjuvant treatment, for example a treatment aiming at reducing the risk of relapse of a breast cancer after removal of the primary tumor by surgery.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: April 25, 2023
    Assignee: Paracrine Therapeutics AB
    Inventors: Ulf Eriksson, Kristian Pietras, Pernilla Roswall
  • Publication number: 20220017600
    Abstract: In certain aspects, the present disclosure relates to the insight that a polypeptide comprising a ligand-binding portion of the extracellular domain of activin-like kinase I (ALK1) polypeptide may be used to inhibit angiogenesis in vivo, particularly in mammals suffering angiogenesis-related disorders. Additionally, the disclosure demonstrates that inhibitors of ALK1 may be used to increase pericyte coverage in vascularized tissues, including tumors and the retina. The disclosure also identifies ligands for ALK1 and demonstrates that such ligands have pro-angiogenic activity, and describes antibodies that inhibit receptor-ligand interaction.
    Type: Application
    Filed: February 25, 2021
    Publication date: January 20, 2022
    Applicants: Acceleron Pharma Inc., Ludwig Institute for Cancer Research Ltd.
    Inventors: Asya Grinberg, John Knopf, Robert S. Pearsall, Ravindra Kumar, Jasbir Seehra, Kristian Pietras
  • Publication number: 20210388104
    Abstract: In certain aspects, the present disclosure relates to the insight that a polypeptide comprising a ligand-binding portion of the extracellular domain of activin-like kinase I (ALK1) polypeptide may be used to inhibit angiogenesis in vivo, particularly in mammals suffering angiogenesis-related disorders. Additionally, the disclosure demonstrates that inhibitors of ALK1 may be used to increase pericyte coverage in vascularized tissues, including tumors and the retina. The disclosure also identifies ligands for ALK1 and demonstrates that such ligands have pro-angiogenic activity, and describes antibodies that inhibit receptor-ligand interaction.
    Type: Application
    Filed: January 4, 2021
    Publication date: December 16, 2021
    Applicants: Ludwig Institute for Cancer Research Ltd., Acceleron Pharma, Inc.
    Inventors: Asya Grinberg, John Knopf, Robert S. Pearsall, Ravindra Kumar, Jasbir Seehra, Kristian Pietras
  • Publication number: 20210186932
    Abstract: The invention discloses that ER-negative breast cancers can be converted into ER positive breast cancers, such as to a breast cancer of luminal-like phenotype by treatment with anti-PDGF-CC antibodies. ER-positive breast cancers, including luminal-like breast cancers can be treated with anti-estrogen treatment. On this basis the invention discloses that surprisingly, ER-negative breast cancers can be treated with anti-estrogen treatment, if the treatment is combined with treatment with anti-PDGF-CC antibodies. Said treatment may for example be an adjuvant treatment, for example a treatment aiming at reducing the risk of relapse of a breast cancer after removal of the primary tumor by surgery.
    Type: Application
    Filed: November 10, 2016
    Publication date: June 24, 2021
    Applicant: Paracrine Therapeutics AB
    Inventors: Ulf Eriksson, Kristian Pietras, Pernilla Roswall
  • Publication number: 20190048063
    Abstract: In certain aspects, the present disclosure relates to the insight that a polypeptide comprising a ligand-binding portion of the extracellular domain of activin-like kinase I (ALK1) polypeptide may be used to inhibit angiogenesis in vivo, particularly in mammals suffering angiogenesis-related disorders. Additionally, the disclosure demonstrates that inhibitors of ALK1 may be used to increase pericyte coverage in vascularized tissues, including tumors and the retina. The disclosure also identifies ligands for ALK1 and demonstrates that such ligands have pro-angiogenic activity, and describes antibodies that inhibit receptor-ligand interaction.
    Type: Application
    Filed: July 30, 2018
    Publication date: February 14, 2019
    Applicants: Acceleron Pharma Inc., Ludwig Institute for Cancer Research Ltd.
    Inventors: Asya Grinberg, John Knopf, Robert S. Pearsall, Ravindra Kumar, Jasbir Seehra, Kristian Pietras
  • Patent number: 10059756
    Abstract: In certain aspects, the present disclosure relates to the insight that a polypeptide comprising a ligand-binding portion of the extracellular domain of activin-like kinase I (ALK1) polypeptide may be used to inhibit angiogenesis in vivo, particularly in mammals suffering angiogenesis-related disorders. Additionally, the disclosure demonstrates that inhibitors of ALK1 may be used to increase pericyte coverage in vascularized tissues, including tumors and the retina. The disclosure also identifies ligands for ALK1 and demonstrates that such ligands have pro-angiogenic activity, and describes antibodies that inhibit receptor-ligand interaction.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: August 28, 2018
    Assignee: Acceleron Pharma Inc.
    Inventors: Asya Grinberg, John Knopf, Robert S. Pearsall, Ravindra Kumar, Jasbir Seehra, Kristian Pietras
  • Publication number: 20180179293
    Abstract: In certain aspects, the present disclosure relates to the insight that a polypeptide comprising a ligand-binding portion of the extracellular domain of activin-like kinase I (ALK1) polypeptide may be used to inhibit angiogenesis in vivo, particularly in mammals suffering angiogenesis-related disorders. Additionally, the disclosure demonstrates that inhibitors of ALK1 may be used to increase pericyte coverage in vascularized tissues, including tumors and the retina. The disclosure also identifies ligands for ALK1 and demonstrates that such ligands have pro-angiogenic activity, and describes antibodies that inhibit receptor-ligand interaction.
    Type: Application
    Filed: February 13, 2018
    Publication date: June 28, 2018
    Applicants: Ludwig Institute for Cancer Research Ltd., Acceleron Pharma, Inc.
    Inventors: Asya Grinberg, John Knopf, Robert S. Pearsall, Ravindra Kumar, Jasbir Seehra, Kristian Pietras
  • Publication number: 20130040896
    Abstract: In certain aspects, the present disclosure relates to the insight that a polypeptide comprising a ligand-binding portion of the extracellular domain of activin-like kinase I (ALK1) polypeptide may be used to inhibit angiogenesis in vivo, particularly in mammals suffering angiogenesis-related disorders. Additionally, the disclosure demonstrates that inhibitors of ALK1 may be used to increase pericyte coverage in vascularized tissues, including tumors and the retina. The disclosure also identifies ligands for ALK1 and demonstrates that such ligands have pro-angiogenic activity, and describes antibodies that inhibit receptor-ligand interaction.
    Type: Application
    Filed: April 13, 2012
    Publication date: February 14, 2013
    Applicant: ACCELERON PHARMA, INC.
    Inventors: ASYA GRINBERG, JOHN KNOPF, RAVINDRA KUMAR, ROBERT S. PEARSALL, JASBIR SEEHRA, KRISTIAN PIETRAS
  • Publication number: 20130039910
    Abstract: In certain aspects, the present disclosure relates to the insight that a polypeptide comprising a ligand-binding portion of the extracellular domain of activin-like kinase I (ALK1) polypeptide may be used to inhibit angiogenesis in vivo, particularly in mammals suffering angiogenesis-related disorders. Additionally, the disclosure demonstrates that inhibitors of ALK1 may be used to increase pericyte coverage in vascularized tissues, including tumors and the retina. The disclosure also identifies ligands for ALK1 and demonstrates that such ligands have pro-angiogenic activity, and describes antibodies that inhibit receptor-ligand interaction.
    Type: Application
    Filed: April 13, 2012
    Publication date: February 14, 2013
    Applicant: ACCELERON PHARMA, INC.
    Inventors: ASYA GRINBERG, JOHN KNOPF, RAVINDRA KUMAR, ROBERT S. PEARSALL, JASBIR SEEHRA, KRISTIAN PIETRAS
  • Patent number: 8158584
    Abstract: In certain aspects, the present disclosure relates to the insight that a polypeptide comprising a ligand-binding portion of the extracellular domain of activin-like kinase I (ALK1) polypeptide may be used to inhibit angiogenesis in vivo, particularly in mammals suffering angiogenesis-related disorders. Additionally, the disclosure demonstrates that inhibitors of ALK1 may be used to increase pericyte coverage in vascularized tissues, including tumors and the retina. The disclosure also identifies ligands for ALK1 and demonstrates that such ligands have pro-angiogenic activity, and describes antibodies that inhibit receptor-ligand interaction.
    Type: Grant
    Filed: May 1, 2009
    Date of Patent: April 17, 2012
    Assignees: Acceleron Pharma, Inc., Ludwig Institute for Cancer Research Ltd.
    Inventors: Asya Grinberg, John Knopf, Ravindra Kumar, Robert S. Pearsall, Jasbir Seehra, Kristian Pietras
  • Patent number: 7723339
    Abstract: The present invention relates to a combination comprising N-{5-[4-(4-methyl-piperazino-methyl) -benzoylamido]-2-methylphenyl}-4-(3-pyridyl)-2-pyrimidine-amine and an epothiione derivative; pharmaceutical composition comprising said combination; method of treatment comprising said combination; and commercial packages comprising said combination.
    Type: Grant
    Filed: February 26, 2002
    Date of Patent: May 25, 2010
    Assignee: Novartis AG
    Inventors: Ralf Brandt, Elisabeth Buchdunger, Carl-Henrik Heldin, Arne Östman, Kristian Pietras, Terence O'Reilly, John D Rothermel, Peter Traxler, Markus Wartmann
  • Publication number: 20090311272
    Abstract: In certain aspects, the present disclosure relates to the insight that a polypeptide comprising a ligand-binding portion of the extracellular domain of activin-like kinase I (ALK1) polypeptide may be used to inhibit angiogenesis in vivo, particularly in mammals suffering angiogenesis-related disorders. Additionally, the disclosure demonstrates that inhibitors of ALK1 may be used to increase pericyte coverage in vascularized tissues, including tumors and the retina. The disclosure also identifies ligands for ALK1 and demonstrates that such ligands have pro-angiogenic activity, and describes antibodies that inhibit receptor-ligand interaction.
    Type: Application
    Filed: May 1, 2009
    Publication date: December 17, 2009
    Inventors: Asya Grinberg, John Knopf, Ravindra Kumar, Robert S. Pearsall, Jasbir Seehra, Kristian Pietras
  • Publication number: 20070037825
    Abstract: 4-(4-methylpiperazin-1-ylmethyl)-N-[4-methyl-3-(4-pyridin-3-yl)pyrimidin-2-ylamino)phenyl]-benzamide of the formula I or a pharmaceutically acceptable salt thereof can be used for enhancing the effect of radioimmunotherapy of tumors.
    Type: Application
    Filed: July 17, 2003
    Publication date: February 15, 2007
    Inventors: Janina Baranowska-Kortylewicz, Takashi Kurizaki, Michio Abe, Arne Ostman, Kristian Pietras
  • Publication number: 20070021327
    Abstract: A method is provided for treating solid tumors comprising administering a composition comprising a PDGF aptamer and a cytotoxic agent. In a preferred embodiment the PDGF aptamer is identified using the SELEX process for the Systematic Evolution of Ligands by Exponential enrichment. A method is also provided for reducing the interstitial fluid pressure (IFP) of a solid tumor comprising administering a PDGF aptamer. Finally, a method is provided for increasing the uptake of cytotoxic agents into a tumor comprising administering a composition comprising a PDGF aptamer and a cytotoxic agent.
    Type: Application
    Filed: September 8, 2006
    Publication date: January 25, 2007
    Applicant: GILEAD SCIENCES, INC.
    Inventors: Kristian Pietras, Arne Ostman, Carl-Henrik Heldin, Kristofer Rubin
  • Patent number: 7141375
    Abstract: A method is provided for treating solid tumors comprising administering a composition comprising a PDGF aptamer and a cytotoxic agent. In a preferred embodiment the PDGF aptamer is identified using the SELEX process for the Systematic Evolution of Ligands by Exponential enrichment. A method is also provided for reducing the interstitial fluid pressure (IFP) of a solid tumor comprising administering a PDGF aptamer. Finally, a method is provided for increasing the uptake of cytotoxic agents into a tumor comprising administering a composition comprising a PDGF aptamer and a cytotoxic agent.
    Type: Grant
    Filed: March 2, 2004
    Date of Patent: November 28, 2006
    Assignee: Gilead Sciences, Inc.
    Inventors: Kristian Pietras, Arne Ostman, Carl-Henrik Heldin, Kristofer Rubin
  • Publication number: 20040224335
    Abstract: A method is provided for treating solid tumors comprising administering a composition comprising a PDGF aptamer and a cytotoxic agent. In a preferred embodiment the PDGF aptamer is identified using the SELEX process for the Systematic Evolution of Ligands by Exponential enrichment. A method is also provided for reducing the interstitial fluid pressure (IFP) of a solid tumor comprising administering a PDGF aptamer. Finally, a method is provided for increasing the uptake of cytotoxic agents into a tumor comprising administering a composition comprising a PDGF aptamer and a cytotoxic agent.
    Type: Application
    Filed: March 2, 2004
    Publication date: November 11, 2004
    Applicant: Gilead Sciences, Inc.
    Inventors: Kristian Pietras, Arne Ostman, Carl-Henrik Heldin, Kristofer Rubin
  • Publication number: 20040132754
    Abstract: The invention relates to a combination which comprises (a) a signal transduction inhibitor selected from a PDGF (platelet-derived growth factor) receptor tyrosine kinase inhibitor and an active ingredient which decreases the activity of the epidermal growth factor (EGF) an epothilone derivative of formula (I) in which compound A represents O or NRn, wherein Rn is hydrogen or lower alkyl, R is hydrogen or lower alkyl, and Z is O or a bond, and optionally at least one pharmaceutically acceptable carrier for simultaneous, separate or sequential use, in particular, for the delay of progression or treatment of a proliferative disease; a pharmaceutical composition comprising such a combination; the use of such a combination for the preparation of a medicament for the delay of progression or treatment of a proliferative disease; a commercial package comprising such a combination as a combined preparation; and to a method of treatment of a warm-blooded animal.
    Type: Application
    Filed: February 18, 2004
    Publication date: July 8, 2004
    Inventors: Ralf Brandt, Elisabeth Buchdunger, Carl-Henrik Heldin, Arne Ostman, Kristian Pietras, Terence O'Reilly, John David Rothermel, Peter Traxler, Markus Wartmann
  • Patent number: 6699843
    Abstract: A method is provided for treating solid tumors comprising administering a composition comprising a PDGF aptamer and a cytotoxic agent. In a preferred embodiment the PDGF aptamer is identified using the SELEX process for the Systematic Evolution of Ligands by Exponential enrichment. A method is also provided for reducing the interstitial fluid pressure (IFP) of a solid tumor comprising administering a PDGF aptamer. Finally, a method is provided for increasing the uptake of cytotoxic agents into a tumor comprising administering a composition comprising a PDGF aptamer and a cytotoxic agent.
    Type: Grant
    Filed: May 17, 2001
    Date of Patent: March 2, 2004
    Assignee: Gilead Sciences, Inc.
    Inventors: Kristian Pietras, Arne Östman, Carl-Henrik Heldin, Kristofer Rubin
  • Publication number: 20020034506
    Abstract: A method is provided for treating solid tumors comprising administering a composition comprising a PDGF aptamer and a cytotoxic agent. In a preferred embodiment the PDGF aptamer is identified using the SELEX process for the Systematic Evolution of Ligands by Exponential enrichment. A method is also provided for reducing the interstitial fluid pressure (IFP) of a solid tumor comprising administering a PDGF aptamer. Finally, a method is provided for increasing the uptake of cytotoxic agents into a tumor comprising administering a composition comprising a PDGF aptamer and a cytotoxic agent.
    Type: Application
    Filed: May 17, 2001
    Publication date: March 21, 2002
    Applicant: Gilead Sciences, Inc.
    Inventors: Kristian Pietras, Arne Ostman, Carl-Henrik Heldin, Kristofer Rubin