Patents by Inventor Christos A. Kyratsous

Christos A. Kyratsous 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).

  • Patent number: 11999799
    Abstract: The present disclosure provides antibodies and antigen-binding fragments thereof that bind specifically to TMPRSS2 and methods of using such antibodies and fragments for treating or preventing viral infections (e.g., coronavirus infections or influenza virus infections).
    Type: Grant
    Filed: February 9, 2021
    Date of Patent: June 4, 2024
    Assignee: REGENERON PHARMACEUTICALS, INC.
    Inventors: Alina Baum, Christos Kyratsous, Lisa Purcell
  • Publication number: 20240083983
    Abstract: Provided herein are monoclonal antibodies, or antigen-binding fragments thereof, that bind to the influenza B hemagglutinin (HA) protein, pharmaceutical compositions comprising the antibodies and methods of use. The antibodies are useful for inhibiting or neutralizing influenza B virus activity, thus providing a means of treating or preventing influenza infection in humans. Also provided is the use of one or more antibodies that bind to the influenza B HA for preventing viral attachment and/or entry into host cells. The antibodies may be used prophylactically or therapeutically and may be used alone or in combination with one or more other anti-viral agents or vaccines.
    Type: Application
    Filed: August 21, 2023
    Publication date: March 14, 2024
    Inventors: Alina BAUM, Christos KYRATSOUS
  • Publication number: 20240043504
    Abstract: The present disclosure provides antibodies and antigen-binding fragments thereof that bind specifically to a coronavirus spike protein and methods of using such antibodies and fragments for treating or preventing viral infections (e.g., coronavirus infections).
    Type: Application
    Filed: May 26, 2021
    Publication date: February 8, 2024
    Inventors: Alina Baum, Benjamin Fulton, Christos Kyratsous, George D. Yancopoulos
  • Publication number: 20230348569
    Abstract: The present disclosure provides antibodies and antigen-binding fragments thereof that bind specifically to a coronavirus spike protein and methods of using such antibodies and fragments for treating or preventing viral infections (e.g., coronavirus infections).
    Type: Application
    Filed: June 29, 2023
    Publication date: November 2, 2023
    Inventors: Robert BABB, Alina BAUM, Gang CHEN, Cindy GERSON, Johanna HANSEN, Tammy HUANG, Christos KYRATSOUS, Wen-Yi LEE, Marine MALBEC, Andrew MURPHY, William OLSON, Neil STAHL, George D. YANCOPOULOS
  • Publication number: 20230345919
    Abstract: Non-human animal cells and non-human animals comprising a humanized Asgr1 locus and methods of using such non-human animal cells and non-human animals are provided. Non-human animal cells or non-human animals comprising a humanized Asgr1 locus express a human ASGR1 protein or an Asgr1 protein, fragments of which are from human ASGR1. Methods are provided for using such non-human animals comprising a humanized Asgr1 locus to assess in vivo efficacy of human-ASGR1-mediated delivery of therapeutic molecules or therapeutic complexes to the liver and to assess the efficacy of therapeutic molecules or therapeutic complexes acting via human-ASGR1-mediated mechanisms.
    Type: Application
    Filed: May 19, 2023
    Publication date: November 2, 2023
    Inventors: Alexander O. Mujica, Viktoria Gusarova, Cheng Wang, Christos Kyratsous, Terra Potocky, Katherine Cygnar, Joel H. Martin
  • Publication number: 20230322907
    Abstract: The present disclosure provides antibodies and antigen-binding fragments of antibodies that bind to Pseudomonas aeruginosa PcrV, and methods of using the same. According to certain embodiments, the disclosure includes antibodies and antigen-binding fragments of antibodies that bind PcrV. The anti-PcrV antibodies and antigen-binding fragments are useful for the prevention and treatment of P. aeruginosa infections.
    Type: Application
    Filed: April 19, 2023
    Publication date: October 12, 2023
    Applicant: Regeneron Pharmaceuticals, Inc.
    Inventors: Christos Kyratsous, Alida Coppi
  • Patent number: 11773156
    Abstract: Provided herein are monoclonal antibodies, or antigen-binding fragments thereof, that bind to the influenza B hemagglutinin (HA) protein, pharmaceutical compositions comprising the antibodies and methods of use. The antibodies are useful for inhibiting or neutralizing influenza B virus activity, thus providing a means of treating or preventing influenza infection in humans. Also provided is the use of one or more antibodies that bind to the influenza B HA for preventing viral attachment and/or entry into host cells. The antibodies may be used prophylactically or therapeutically and may be used alone or in combination with one or more other anti-viral agents or vaccines.
    Type: Grant
    Filed: October 28, 2020
    Date of Patent: October 3, 2023
    Assignee: REGENERON PHARMACEUTICALS, INC.
    Inventors: Alina Baum, Christos Kyratsous
  • Patent number: 11732030
    Abstract: The present disclosure provides antibodies and antigen-binding fragments thereof that bind specifically to a coronavirus spike protein and methods of using such antibodies and fragments for treating or preventing viral infections (e.g., coronavirus infections).
    Type: Grant
    Filed: March 19, 2021
    Date of Patent: August 22, 2023
    Assignee: Regeneron Pharmaceuticals, Inc.
    Inventors: Robert Babb, Alina Baum, Gang Chen, Cindy Gerson, Johanna Hansen, Tammy Huang, Christos Kyratsous, Wen-Yi Lee, Marine Malbec, Andrew Murphy, William Olson, Neil Stahl, George D. Yancopoulos
  • Publication number: 20230232796
    Abstract: Non-human animal cells and non-human animals comprising a humanized ACE2 locus and methods of using such non-human animal cells and non-human animals are provided. Non-human animal cells or non-human animals comprising a humanized ACE2 locus express a human ACE2 protein or a chimeric ACE2 protein, fragments of which are from human ACE2. Methods are also provided for using such non-human animals comprising a humanized ACE2 locus to assess in vivo ACE2 activity, e.g., coronavirus infection and/or the treatment or prevention thereof.
    Type: Application
    Filed: June 25, 2021
    Publication date: July 27, 2023
    Inventors: Susannah Brydges, Christos Kyratsous, Alina Baum
  • Patent number: 11696572
    Abstract: Non-human animal cells and non-human animals comprising a humanized Asgr1 locus and methods of using such non-human animal cells and non-human animals are provided. Non-human animal cells or non-human animals comprising a humanized Asgr1 locus express a human ASGR1 protein or an Asgr1 protein, fragments of which are from human ASGR1. Methods are provided for using such non-human animals comprising a humanized Asgr1 locus to assess in vivo efficacy of human-ASGR1-mediated delivery of therapeutic molecules or therapeutic complexes to the liver and to assess the efficacy of therapeutic molecules or therapeutic complexes acting via human-ASGR1-mediated mechanisms.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: July 11, 2023
    Assignee: Regeneron Pharmaceuticals, Inc.
    Inventors: Alexander O. Mujica, Viktoria Gusarova, Cheng Wang, Christos Kyratsous, Terra Potocky, Katherine Cygnar, Joel H. Martin
  • Patent number: 11655286
    Abstract: The present disclosure provides antibodies and antigen-binding fragments of antibodies that bind to Pseudomonas aeruginosa PcrV, and methods of using the same. According to certain embodiments, the disclosure includes antibodies and antigen-binding fragments of antibodies that bind PcrV. The anti-PcrV antibodies and antigen-binding fragments are useful for the prevention and treatment of P. aeruginosa infections.
    Type: Grant
    Filed: June 10, 2020
    Date of Patent: May 23, 2023
    Assignee: REGENERON PHARMACEUTICALS, INC.
    Inventors: Christos Kyratsous, Alida Coppi
  • Publication number: 20230149536
    Abstract: The disclosure provides recombinant vesicular stomatitis vims (VSV) particles, wherein the VSV glycoprotein (G) is replaced by a coronavirus spike (S) glycoprotein, or a fragment or a derivative thereof, as well as compositions, vaccines, kits, and methods for using the recombinant VSV particles. In a specific embodiment, the S glycoprotein is derived from Severe Acute Respiratory Syndrome coronavirus 2 (SARS-CoV-2) and the methods are for the treatment or prevention of a disease or disorder in a subject infected with SARS-CoV-2. In certain embodiments, the disease or disorder is COVID-19.
    Type: Application
    Filed: April 19, 2021
    Publication date: May 18, 2023
    Inventors: Stephen J. RUSSELL, Kah Whye PENG, Patrycja LECH, Alina BAUM, Christos KYRATSOUS
  • Publication number: 20230149563
    Abstract: Nucleic acid constructs and compositions that allow insertion of a FIX coding sequence into a target genomic locus such as an endogenous ALB locus and/or expression of the FIX coding sequence are provided. The nucleic acid constructs and compositions can be used in methods of introducing a F9 nucleic acid into a cell, methods of integration of a F9 nucleic acid into a target genomic locus, methods of expression of FIX in a cell, and in methods of treating hemophilia B or FIX deficiency in a subject.
    Type: Application
    Filed: October 27, 2022
    Publication date: May 18, 2023
    Inventors: Leah Sabin, Christos Kyratsous, Evangelos Pefanis, Sven Moller-Tank, Joseph Katakowski, Andrew Baik, Katherine Cygnar, Poulami Samai, Philip Calafati
  • Publication number: 20230125469
    Abstract: The present disclosure provides antibodies and antigen-binding fragments thereof that bind specifically to a coronavirus spike protein and methods of using such antibodies and fragments for treating or preventing viral infections (e.g., coronavirus infections).
    Type: Application
    Filed: July 13, 2022
    Publication date: April 27, 2023
    Inventors: Alina BAUM, Christos KYRATSOUS, George D. YANCOPOULOS
  • Publication number: 20230079407
    Abstract: Provided herein are antibodies and antigen-binding fragments that bind MSR1 and methods of use thereof. According to certain embodiments, the antibodies bind human MSR1 with high affinity. In certain embodiments, the antibodies bind MSR1 without blocking, or blocking less than 90%, of modified LDL binding to MSR1. In some embodiments, the antibodies bind cell surface expressed-MSR1 and are internalized. The antibodies of the invention may be fully human antibodies. The invention includes anti-MSR1 antibodies, or antigen-binding fragments thereof, conjugated to drugs or therapeutic compounds.
    Type: Application
    Filed: April 22, 2022
    Publication date: March 16, 2023
    Inventors: Jesper GROMADA, Viktoria GUSAROVA, Amy HAN, Sokol HAXHINASTO, Christos KYRATSOUS, Andrew J. MURPHY, Thomas NITTOLI, William OLSON, Matthew SLEEMAN, Anna ZUMSTEG
  • Patent number: 11530255
    Abstract: The present invention provides monoclonal antibodies, or antigen-binding fragments thereof, that bind to Ebola virus glycoproteins, pharmaceutical compositions comprising the antibodies and methods of use. The antibodies of the invention are useful for inhibiting or neutralizing Ebola virus activity, thus providing a means of treating or preventing Ebola virus infection in humans. In some embodiments, the invention provides for use of one or more antibodies that bind to the Ebola virus for preventing viral attachment and/or entry into host cells. The antibodies of the invention may be used prophylactically or therapeutically and may be used alone or in combination with one or more other anti-viral agents or vaccines.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: December 20, 2022
    Assignee: REGENERON PHARMACEUTICALS, INC.
    Inventors: Christos Kyratsous, William Olson, Peter Mason, Neil Stahl
  • Publication number: 20220356230
    Abstract: The present disclosure provides antibodies and antigen-binding fragments thereof that bind specifically to a coronavirus spike protein and methods of using such antibodies and fragments for treating or preventing viral infections (e.g., coronavirus infections).
    Type: Application
    Filed: March 19, 2021
    Publication date: November 10, 2022
    Inventors: Robert Babb, Alina BAUM, Gang CHEN, Cindy GERSON, Johanna HANSEN, Tammy HUANG, Christos KYRATSOUS, Wen-Yi LEE, Marine MALBEC, Andrew MURPHY, William OLSON, Neil STAHL, George D. YANCOPOULOS
  • Publication number: 20220354967
    Abstract: The present disclosure is directed to methods and compositions useful for inserting and expressing a heterologous (exogenous) gene within a genomic locus, such as a safe harbor site, of a host cell.
    Type: Application
    Filed: April 16, 2021
    Publication date: November 10, 2022
    Inventors: Jonathan Douglas Finn, Hon-Ren Huang, Moitri Roy, KehDih Lai, Rachel Sattler, Christos Kyratsous, Cheng Wang
  • Publication number: 20220265865
    Abstract: The disclosure features compositions and methods for the treatment of sensorineural hearing loss and auditory neuropathy, particularly forms of the disease that are associated with a mutation in otoferlin (OTOF), by way of OTOF gene therapy. The disclosure provides a variety of compositions that include a first nucleic acid vector that contains a polynucleotide encoding an N-terminal portion of an OTOF isoform 5 protein and a second nucleic acid vector that contains a polynucleotide encoding a C-terminal portion of an OTOF isoform 5 protein. These vectors can be used to increase the expression of OTOF in a subject, such as a human subject suffering from sensorineural hearing loss.
    Type: Application
    Filed: April 29, 2022
    Publication date: August 25, 2022
    Inventors: Joseph BURNS, Kathryn ELLIS, Tyler GIBSON, Adam PALERMO, Martin SCHWANDER, Jonathon WHITTON, Leah SABIN, Christos KYRATSOUS, Meghan DRUMMOND SAMUELSON
  • Publication number: 20220241430
    Abstract: Provided herein are compositions and methods for adapting adeno-associated virus (AAV) particles comprising capsids of non-primate animal AAV, remote AAV, or a combination thereof. AAV adapted accordingly may be a viable gene therapy platform for the treatment of a patient in need thereof, and may be particularly useful in patients excluded from current treatment modalities involving current therapeutic AAV particles due to their high titer of antibodies against the current therapeutic AAV particles.
    Type: Application
    Filed: May 22, 2020
    Publication date: August 4, 2022
    Inventors: Leah Sabin, Christos Kyratsous, Sven Moller-Tank