Patents by Inventor Olivier Lèger

Olivier Lèger 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: 20150079080
    Abstract: The present invention relates to novel antibodies capable of binding specifically to the human insulin-like growth factor I receptor IGF-IR and/or capable of specifically inhibiting the tyrosine kinase activity of said IGF-IR receptor, especially monoclonal antibodies of murine, chimeric and humanized origin, as well as the amino acid and nucleic acid sequences coding for these antibodies. The invention likewise comprises the use of these antibodies as a medicament for the prophylactic and/or therapeutic treatment of cancers overexpressing IGF-IR or any pathology connected with the overexpression of said receptor as well as in processes or kits for diagnosis of illnesses connected with the overexpression of the IGF-IR receptor. The invention finally comprises products and/or compositions comprising such antibodies in combination with anti-EGFR antibodies and/or compounds and/or anti-cancer agents or agents conjugated with toxins and their use for the prevention and/or the treatment of certain cancers.
    Type: Application
    Filed: September 22, 2014
    Publication date: March 19, 2015
    Inventors: Liliane Goetsch, Nathalie Corvaia, Olivier Leger, Nelly Kuklin, Michael Chastain, David G. Brooks, Lee J. Helman
  • Publication number: 20140356380
    Abstract: This invention provides monoclonal antibodies that recognize the Toll-like Receptor 4/MD-2 receptor complex, and monoclonal antibodies that recognize the TLR4/MD2 complex as well as TLR4 when not complexed with MD-2. The invention further provides methods of using the monoclonal antibodies as therapeutics. This invention also provides soluble chimeric proteins, methods of expressing and purifying soluble chimeric proteins, and methods of using soluble chimeric proteins as therapeutics, in screening assays and in the production of antibodies.
    Type: Application
    Filed: December 31, 2013
    Publication date: December 4, 2014
    Applicant: NOVIMMUNE S.A.
    Inventors: Greg Elson, Olivier Leger
  • Publication number: 20140341917
    Abstract: The present application relates to anti-PD-L1 antibodies or antigen binding fragments thereof, nucleic acid encoding the same, therapeutic compositions thereof, and their use to enhance T-cell function to upregulate cell-mediated immune responses and for the treatment of T cell dysfunctional disorders, such as tumor immunity, for the treatment of and cancer.
    Type: Application
    Filed: November 21, 2012
    Publication date: November 20, 2014
    Applicant: MERCK PATENT GMBH
    Inventors: Horacio G. Nastri, Christel Iffland, Olivier Leger, Qi An, Mark Cartwright, Sean D. McKenna, Vanita D. Sood, Gang Hao
  • Publication number: 20140314743
    Abstract: The present disclosure relates to amino acid sequences that are directed against (as defined herein) any of IL-17A, IL-17F and/or IL-17A/F including combinations thereof, as well as to compounds or constructs, and in particular proteins and polypeptides, that comprise or essentially consist of one or more such amino acid sequences.
    Type: Application
    Filed: May 4, 2012
    Publication date: October 23, 2014
    Applicant: Merck Patent GmbH
    Inventors: Heidi Rommelaere, Joost Alexander Kolkman, Michael John Scott Saunders, Ann Union, Yolande Chvatchko, Amanda E.I. Proudfoot, Alain Vicari, Denis Bruniquel, Laurent Chevalet, Olivier Leger
  • Publication number: 20140314769
    Abstract: This invention provides monoclonal antibodies that recognize the Toll-like Receptor 4/MD-2 receptor complex, and monoclonal antibodies that recognize the TLR4/MD2 complex as well as TLR4 when not complexed with MD-2. The invention further provides methods of using the humanized monoclonal antibodies as therapeutics. This invention also provides soluble chimeric proteins, methods of expressing and purifying soluble chimeric proteins, and methods of using soluble chimeric proteins as therapeutics, in screening assays and in the production of antibodies.
    Type: Application
    Filed: December 17, 2013
    Publication date: October 23, 2014
    Inventors: Greg Elson, Olivier Leger
  • Patent number: 8808999
    Abstract: The present invention relates to methods of identifying IGF-IR modulators and hybrid-R modulators comprising contacting IGF-IR with a humanized anti-IGF-IR antibody and contacting hybrid-R with a humanized anti-hybrid-R antibody, respectively.
    Type: Grant
    Filed: January 18, 2012
    Date of Patent: August 19, 2014
    Assignee: Pierre Fabre Medicament
    Inventors: Liliane Goetsch, Nathalie Corvaia, Alain Duflos, Jean-Francois Haeuw, Olivier Leger, Alain Beck
  • Publication number: 20140193399
    Abstract: The present invention is related to antibodies directed to the antigen CD3 and uses of such antibodies. In particular, the present invention provides fully human monoclonal antibodies directed to CD3. Nucleotide sequences encoding, and amino acid sequences comprising, heavy and light chain immunoglobulin molecules, particularly sequences corresponding to contiguous heavy and light chain sequences spanning the framework regions and/or complementarity determining regions (CDR's), specifically from FR1 through FR4 or CDR1 through CDR3, are provided. Hybridomas or other cell lines expressing such immunoglobulin molecules and monoclonal antibodies are also provided.
    Type: Application
    Filed: October 8, 2013
    Publication date: July 10, 2014
    Inventors: Bernard Mach, Yann Dean, Marie Kosco-Vilbois, Greg Elson, Nicolas Fischer, Olivier Leger
  • Patent number: 8771697
    Abstract: This invention provides fully human monoclonal antibodies that recognize IL-17F, the IL-17F homodimer, IL-17A, the IL-17A homodimer, and/or the heterodimeric IL-17A/IL-17F protein complex. The invention further provides methods of using such monoclonal antibodies as a therapeutic, diagnostic, and prophylactic.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: July 8, 2014
    Assignee: Novimmune SA
    Inventors: Krzysztof Masternak, Olivier Leger
  • Publication number: 20140186362
    Abstract: The invention relates to fully human antibodies, and fragments thereof, that bind to human interferon gamma (hIFN?), thereby modulating the interaction between IFN? and its receptor, IFN?-R, and/or modulating the biological activities of IFN?. The invention also relates to the use of such anti-IFN? antibodies in the prevention or treatment of immune-related disorders and in the amelioration of a symptom associated with an immune-related disorder.
    Type: Application
    Filed: October 18, 2013
    Publication date: July 3, 2014
    Inventors: Walter Ferlin, Nicolas Fischer, Greg Elson, Olivier Leger
  • Patent number: 8715669
    Abstract: This invention provides fully human monoclonal antibodies that recognize IL-17F, the IL-17F homodimer, IL-17A, the IL-17A homodimer, and/or the heterodimeric IL-17A/IL-17F protein complex. The invention further provides methods of using such monoclonal antibodies as a therapeutic, diagnostic, and prophylactic.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: May 6, 2014
    Assignee: Novimmune SA
    Inventors: Krzysztof Masternak, Olivier Leger
  • Publication number: 20140065163
    Abstract: The present invention relates to antibodies with specificity for granulocyte-macrophage colony stimulating factor (GM-CSF). More particularly, the invention relates to humanized monoclonal antibodies that bind specifically to human GM-CSF with high affinity. The invention also relates to nucleic acids encoding the antibodies, vectors for expression of these nucleic acids, and host cells for producing said antibodies. Further, the invention relates to the use of said antibodies in the diagnosis or treatment of autoimmune or inflammatory diseases.
    Type: Application
    Filed: November 17, 2011
    Publication date: March 6, 2014
    Inventors: Laurent Magnenat, Olivier Leger, Charles MacKay, David Georges Zahra
  • Publication number: 20140038287
    Abstract: Disclosed are processes for producing a variant polypeptide (e.g. antibodies) having modified binding characteristics for human Fc gamma receptor IIA (CD32A) leading to increased inhibition of proinflammatory mediators while retaining binding to a target antigen via its Fv portion, which processes comprise altering the polypeptides by substitution of at least two amino acid residues at EU position 325, 326 or 328 of a human IgG CH2 region for a sequence selected from SAAF, SKAF, NAAF and NKAF. Also disclosed are molecules, particularly polypeptides, more particularly immunoglobulins (e.g. antibodies) that include a variant CDR3 region, wherein the variant CDR3 region includes at least one amino acid modified relative to a wild-type CDR3 region. The polypeptides that can be generated according to the methods of the invention are highly variable, and they can include antibodies and fusion proteins that contain an Fc region or a biologically active portion thereof.
    Type: Application
    Filed: October 1, 2013
    Publication date: February 6, 2014
    Inventors: Greg Elson, Olivier Leger
  • Publication number: 20140023641
    Abstract: The present invention relates to antibodies with specificity for granulocyte-macrophage colony stimulating factor (GM-CSF). More particularly, the invention relates to humanized monoclonal antibodies that bind specifically to human GM-CSF with high affinity. The invention also relates to nucleic acids encoding the antibodies, vectors for expression of these nucleic acids, and host cells for producing said antibodies. Further, the invention relates to the use of said antibodies in the diagnosis or treatment of autoimmune or inflammatory diseases.
    Type: Application
    Filed: November 17, 2011
    Publication date: January 23, 2014
    Applicant: Merck Serono S.A.
    Inventors: Laurent Magnenant, Olivier Leger, Charles Mackay, David Georges Zahra
  • Patent number: 8609822
    Abstract: This invention provides monoclonal antibodies that recognize the Toll-like Receptor 4/MD-2 receptor complex, and monoclonal antibodies that recognize the TLR4/MD2 complex as well as TLR4 when not complexed with MD-2. The invention further provides methods of using the humanized monoclonal antibodies as therapeutics. This invention also provides soluble chimeric proteins, methods of expressing and purifying soluble chimeric proteins, and methods of using soluble chimeric proteins as therapeutics, in screening assays and in the production of antibodies.
    Type: Grant
    Filed: January 31, 2012
    Date of Patent: December 17, 2013
    Assignee: NovImmune S.A.
    Inventors: Greg Elson, Olivier Leger
  • Publication number: 20130273031
    Abstract: The present invention relates to novel antibodies capable of binding specifically to the human insulin-like growth factor I receptor IGF-IR and/or capable of specifically inhibiting the tyrosine kinase activity of said IGF-IR receptor, especially monoclonal antibodies of murine, chimeric and humanized origin, as well as the amino acid and nucleic acid sequences coding for these antibodies. The invention likewise comprises the use of these antibodies as a medicament for the prophylactic and/or therapeutic treatment of cancers overexpressing IGF-IR or any pathology connected with the overexpression of said receptor as well as in processes or kits for diagnosis of illnesses connected with the overexpression of the IGF-IR receptor. The invention finally comprises products and/or compositions comprising such antibodies in combination with anti-EGFR antibodies and/or compounds and/or anti-cancer agents or agents conjugated with toxins and their use for the prevention and/or the treatment of certain cancers.
    Type: Application
    Filed: February 26, 2013
    Publication date: October 17, 2013
    Inventors: LILIANE GOETSCH, NATHALIE CORVAIA, OLIVIER LEGER, NELLY KUKLIN, MICHAEL CHASTAIN, DAVID G. BROOKS, LEE J. HELMAN
  • Patent number: 8551478
    Abstract: The present invention is related to antibodies directed to the antigen CD3 and uses of such antibodies. In particular, the present invention provides fully human monoclonal antibodies directed to CD3. Nucleotide sequences encoding, and amino acid sequences comprising, heavy and light chain immunoglobulin molecules, particularly sequences corresponding to contiguous heavy and light chain sequences spanning the framework regions and/or complementarity determining regions (CDR's), specifically from FR1 through FR4 or CDR1 through CDR3, are provided. Hybridomas or other cell lines expressing such immunoglobulin molecules and monoclonal antibodies are also provided.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: October 8, 2013
    Assignee: NovImmune S.A.
    Inventors: Bernard Mach, Yann Dean, Marie Kosco-Vilbois, Greg Elson, Nicolas Fischer, Olivier Leger
  • Patent number: 8546539
    Abstract: Disclosed are processes for producing a variant polypeptide (e.g. antibodies) having modified binding characteristics for human Fc gamma receptor IIA (CD32A) leading to increased inhibition of proinflammatory mediators while retaining binding to a target antigen via its Fv portion, which processes comprise altering the polypeptides by substitution of at least two amino acid residues at EU position 325, 326 or 328 of a human IgG CH2 region for a sequence selected from SAAF, SKAF, NAAF and NKAF. Also disclosed are molecules, particularly polypeptides, more particularly immunoglobulins (e.g. antibodies) that include a variant CDR3 region, wherein the variant CDR3 region includes at least one amino acid modified relative to a wild-type CDR3 region. The polypeptides that can be generated according to the methods of the invention are highly variable, and they can include antibodies and fusion proteins that contain an Fc region or a biologically active portion thereof.
    Type: Grant
    Filed: May 14, 2008
    Date of Patent: October 1, 2013
    Assignee: Novimmune S.A.
    Inventors: Greg Elson, Olivier Leger
  • Publication number: 20130216549
    Abstract: The invention relates to fully human antibodies, and fragments thereof, that bind to interferon-inducible-protein-10 (IP-10, CXCL10), thereby modulating the interaction between IP-10 and its receptor, CXCR3, and/or modulating the biological activities of IP-10. The invention also relates to the use of such anti-IP-10 antibodies in the prevention or treatment of immune-related disorders and in the amelioration of one or more symptoms associated with an immune-related disorder.
    Type: Application
    Filed: August 29, 2012
    Publication date: August 22, 2013
    Inventors: Nicolas Fischer, Marie Kosco-Vilbois, Olivier Leger
  • Patent number: 8337849
    Abstract: This invention provides fully human monoclonal antibodies that recognize the IL-6/IL-6R complex. The invention further provides methods of using such monoclonal antibodies as a therapeutic, diagnostic, and prophylactic.
    Type: Grant
    Filed: September 7, 2011
    Date of Patent: December 25, 2012
    Assignee: NovImmune S.A.
    Inventors: Walter Ferlin, Marie Kosco-Vilbois, Greg Elson, Olivier Leger, Florence Guilhot
  • Publication number: 20120269820
    Abstract: This invention provides fully human monoclonal antibodies that recognize IL-17F, the IL-17F homodimer, IL-17A, the IL-17A homodimer, and/or the heterodimeric IL-17A/IL-17F protein complex. The invention further provides methods of using such monoclonal antibodies as a therapeutic, diagnostic, and prophylactic.
    Type: Application
    Filed: June 8, 2012
    Publication date: October 25, 2012
    Inventors: Krzysztof Masternak, Olivier Leger