Patents Assigned to Medigene Limited
  • Publication number: 20100331342
    Abstract: Compounds of formula (IA) or (IB) are inhibitors of CD80 and useful in immunomodulation therapy: wherein Ar represents an optionally substituted monocyclic or bicyclic aromatic or heteroaromatic group having from 5 to 10 ring atoms; R1 and R2 independently represent H, or C1-C6 alkyl; R3 represents H; F; Cl; Br; —NO2; —CN; C1-C6 alkyl optionally substituted by F or CI; or C1-C6 alkoxy optionally substituted by F; R4 represents a carboxylic acid group (—COOH) or an ester thereof, or —C(?O)NR6R7, —NR7C(?O)R6, —NHC(?O)NR7R6 or —NHC(?S)NR7R6 wherein R6 represents H, or a radical of formula -(Alk)m-Q wherein m is 0 or 1, Alk is an optionally substituted divalent straight or branched C1-C12 alkylene, or C2-C12 alkenylene, or C2-C12 alkynylene radical or a divalent C3-C12 carbocyclic radical, any of which radicals may be interrupted by one or more —O—, —S— or —N(R8)— radicals wherein R8 represents H or C1-C4 alkyl, C3-C4 alkenyl, C3-C4 alkynyl, or C3-C6 cycloalkyl, and Q represents H; —CF3;—OH; —SH; —NR8R8 wherein e
    Type: Application
    Filed: September 2, 2010
    Publication date: December 30, 2010
    Applicant: Medigene Limited
    Inventor: Ian Richard Matthews
  • Patent number: 7816361
    Abstract: Compounds of formula (IA) or (IB) are inhibitors of CD80 and useful in immunomodulation therapy: wherein Ar represents an optionally substituted monocyclic or bicyclic aromatic or heteroaromatic group having from 5 to 10 ring atoms; R1 and R2 independently represent H, or C1-C6 alkyl; R3 represents H; F; CI; Br, —NO2; —CN; C1-C6 alkyl optionally substituted by F or CI; or C1-C6 alkoxy optionally substituted by F; R4 represents a carboxylic acid group (—COOH) or an ester thereof, or —C(?O)NR6R7, —NR7C(?O)R6, —NR7C(?O)OR6, —NHC(?O)NR7R6 or —NHC(?S)NR7R6 wherein R6 represents H, or a radical of formula -(Alk)m-Q wherein m is 0 or 1, Alk is an optionally substituted divalent straight or branched C1-C12 alkylene, or C2-C12 alkenylene, or C2-C12 alkynylene radical or a divalent C3-C12 carbocyclic radical, any of which radicals may be interrupted by one or more —O—, —S— or —N(R8)— radicals wherein R8 represents H or C1-C4 alkyl, C3-C4 alkenyl, C3-C4 alkynyl, or C3-C6 cycloalkyl, and Q represents H; —CF3; —OH; —SH; —
    Type: Grant
    Filed: November 2, 2004
    Date of Patent: October 19, 2010
    Assignee: Medigene Limited
    Inventor: Ian Richard Matthews
  • Publication number: 20090312334
    Abstract: Compounds of formula (I) are inhibitors of CD80 and useful in immunomodulation therapy: wherein R1 and R3 independently represent H; F; Cl; Br; —NO2; —CN; C1-C6 alkyl optionally substituted by F or Cl; or C1-C6 alkoxy optionally substituted by F; R4 represents a carboxylic acid group (—COOH) or an ester thereof, or —C(?O)NR6R7, —NR7C(?O)R6, —NR7C(?O)OR6, —NHC(?O)NR7R6 or —NHC(?S)NR7R6 wherein R6 represents H, or a radical of formula -(Alk)m-Q wherein m is 0 or 1, Alk is an optionally substituted divalent straight or branched C1-C12 alkylene, or C2-C12 alkenylene, or C2-C12 alkynylene radical or a divalent C3-C12 carbocyclic radical, any of which radicals may contain one or more —O—, —S— or —N(R8)— links wherein R8 represents H or C1-C4 alkyl, C3-C4 alkenyl, C3-C4 alkynyl, or C3-C6 cycloalkyl, and Q represents H; —NR9R10 wherein R9 and R10 independently represents H; C1-C4 alkyl; C3-C4 alkenyl; C3-C4 alkynyl; C3-C6 cycloalkyl; an ester group; an optionally substituted carbocyclic or heterocyclic group; or
    Type: Application
    Filed: August 24, 2009
    Publication date: December 17, 2009
    Applicant: Medigene Limited
    Inventor: Ian Richard Matthews
  • Patent number: 7598247
    Abstract: Compounds of formula (I) are inhibitors of CD80 and useful in immunomodulation therapy: wherein R1 and R3 independently represent H; F; Cl; Br; —NO2; —CN; C1-C6 alkyl optionally substituted by F or Cl; or C1-C6 alkoxy optionally substituted by F; R4 represents a carboxylic acid group (—COOH) or an ester thereof, or —C(?O)NR6R7, —NR7C(?O)R6, —NR7C(?O)OR6, —NHC(?O)NR7R6 or —NHC(?S)NR7R6 wherein R6 represents H, or a radical of formula -(Alk)m-Q wherein m is 0 or 1, Alk is an optionally substituted divalent straight or branched C1-C12 alkylene, or C2-C12 alkenylene, or C2-C12 alkynylene radical or a divalent C3-C12 carbocyclic radical, any of which radicals may contain one or more —O—, —S— or —N(R8)— links wherein R8 represents H or C1-C4 alkyl, C3-C4 alkenyl, C3-C4 alkynyl, or C3-C6 cycloalkyl, and Q represents H; —NR9R10 wherein R9 and R10 independently represents H; C1-C4 alkyl; C3-C4 alkenyl; C3-C4 alkynyl; C3-C6 cycloalkyl; an ester group; an optionally substituted carbocyclic or heterocyclic group; or
    Type: Grant
    Filed: August 28, 2007
    Date of Patent: October 6, 2009
    Assignee: Medigene Limited
    Inventor: Ian Richard Matthews
  • Publication number: 20090221590
    Abstract: The choline salt of the CD80 antagonist compound 4-(6-fluoro-3-oxo-1,3-dihydro-pyrazolo[4,3-c]cinnolin-2-yl)-N-(2,2-difluoro-ethyl)-benzamide (I) has good aqueous solubility and is therefore convenient for pharmaceutical use.
    Type: Application
    Filed: February 19, 2007
    Publication date: September 3, 2009
    Applicant: MEDIGENE LIMITED
    Inventor: Ian Richard Matthews
  • Publication number: 20090208447
    Abstract: The present invention provides polypeptides having the property of binding to a given Class I pMHC CHARACTERISED IN THAT said polypeptide has a KD for the said given Class I pMHC of less than or equal to 1 ?M and/or has an off-rate (koff) for the said given Class I pMHC molecule of 2 S?1 or slower AND said polypeptide has at least a 45% identity and/or 55% similarity to SEQ ID NO: 7 AND said polypeptide inhibits CD8 binding to the given pMHC to a greater extent than the polypeptide SEQ ID NO:3. Such polypeptides are useful, either alone or associated with a therapeutic agent, for the inhibition of cytotoxic T cell (CTL) responses.
    Type: Application
    Filed: May 19, 2006
    Publication date: August 20, 2009
    Applicant: MEDIGENE LIMITED
    Inventors: Bent Karsten Jakobsen, Yi Ll, Ruth Karen Moysey
  • Patent number: 7566713
    Abstract: Compounds of formula (I) are CD80 inhibitors, and of value for immunomodulation, e.g. in rheumatoid arthritis, multiple sclerosis, diabetes, asthma, transplantation, systemic lupus erythematosis and psoriasis: wherein Y is —CH2—, —CH2CH2—, or CH2CH2CH2—; R1 represents H; F; methyl, trifuoromethyl, methoxy or triflioromethoxy; R3 represents H; F; CI; Br; NO2; CN; C1C6 alkyl optionally substituted by F or Cl; or C1-C6 alkoxy optionally substituted by F; R4 represents a carboxylic acid group (—COOH) or an ester thereof, or —C(?O) NR6R7—NR7C(?O)R6, NR7C(?O)OR6, NHC(?O) or NHC(?S)NR7R6 wherein R6 and R7 are as defined in the specification and X represents a bond or a divalent radical as defined in the specification.
    Type: Grant
    Filed: April 26, 2005
    Date of Patent: July 28, 2009
    Assignee: Medigene Limited
    Inventor: Ian Richard Mathews
  • Publication number: 20090105133
    Abstract: The present invention provides gamma-delta T cell receptors (??TCRs) with an introduced disulfide interchain bond. Such proteins, and cells expressing of such proteins on the surface thereof, have value in methods for distinguishing between cell populations by the TCR ligand they present, and in the treatment of diseases.
    Type: Application
    Filed: October 31, 2005
    Publication date: April 23, 2009
    Applicant: MEDIGENE LIMITED
    Inventor: Jonathan Michael Boulter
  • Publication number: 20090054257
    Abstract: A method of increasing the affinity and/or decreasing the off-rate of a given TCR specific for a given target pMHC, comprising creating a plurality of TCRs having an ? chain CDR2 sequence and/or a ? chain CDR2 sequence different from the corresponding CDR2 sequence(s) of the given TCR but having the same ? and ? CDR1 and CDR3 sequences as the given TCR, determining the affinity and/or off-rate of members of said plurality of TCRs for the target pMHC, and selecting one or more members having at least a 10-fold greater affinity for the target pMHC than the given TCR and/or a 10-fold slower off-rate for the target pMHC than the given TCR.
    Type: Application
    Filed: October 7, 2008
    Publication date: February 26, 2009
    Applicant: MEDIGENE LIMITED
    Inventors: STEVEN MARK DUNN, YI LI, JONATHAN MICHAEL BOULTER, LUCY BOULTER
  • Publication number: 20080292549
    Abstract: The present invention provides TCRs having an affinity (KD) of less than or equal to 3 ?M, and/or an off-rate (koff) of 1×10?3 S?1 or slower, for the AAGIGILTV-HLA-A*0201 complex. Such TCRs are useful, either alone or associated with a therapeutic agent, for targeting cancer cells presenting that complex.
    Type: Application
    Filed: May 31, 2006
    Publication date: November 27, 2008
    Applicant: MEDIGENE LIMITED
    Inventors: Bent Karsten Jakobsen, Nathaniel Ross Liddy
  • Publication number: 20080292602
    Abstract: The present invention provides isolated T cell receptors (TCRs) having the property of specifically binding to the VYGFVRACL-HLA-A24 peptide-MHC. Such TCRs are useful, either alone or associated with a therapeutic agent, for targeting cancerous cells presenting the complex.
    Type: Application
    Filed: May 19, 2006
    Publication date: November 27, 2008
    Applicant: Medigene Limited
    Inventors: Bent Karsten Jakobsen, Ll Yi
  • Patent number: 7425339
    Abstract: The present invention provides modified CD8 molecules whose binding to MHC is enhanced compared to wild-type CD8, wherein Ser53 of at least one CD8? chain thereof is mutated to another amino acid. It also provides nucleic acids encoding such molecules and methods of using such molecules and nucleic acids in immunosuppressive therapy, in particular as inhibitors of cytotoxic T cell responses.
    Type: Grant
    Filed: June 14, 2002
    Date of Patent: September 16, 2008
    Assignee: MediGene Limited
    Inventors: Bent Karsten Jakobsen, Meir Glick
  • Publication number: 20080090251
    Abstract: The present invention provides a superantigen quality control assay, particularly for SEA-E120, comprising incubating a standard amount of a superantigen-containing test sample with a standard amount of a soluble TCR which binds the superantigen, separating unbound TCR from the resultant superantigen/TCR-containing sample, quantifying the TCR bound in that sample, and comparing that result with a reference result characterising a control superantigen-containing sample. Also provided are soluble TCRs useful as reagents in said assay.
    Type: Application
    Filed: October 31, 2005
    Publication date: April 17, 2008
    Applicant: MEDIGENE LIMITED
    Inventors: Bent Jakobsen, Nicholas Pumphrey
  • Publication number: 20080045527
    Abstract: Compounds of formula (I) are inhibitors of CD80 and useful in immunomodulation therapy: wherein R1 and R3 independently represent H; F; Cl; Br; —NO2; —CN; C1-C6 alkyl optionally substituted by F or Cl; or C1-C6 alkoxy optionally substituted by F; R4 represents a carboxylic acid group (—COOH) or an ester thereof, or —C(?O)NR6R7, —NR7C(?O)R6, —NR7C(?O)OR6, —NHC(?O)NR7R6 or —NHC(?S)NR7R6 wherein R6 represents H, or a radical of formula -(Alk)m-Q wherein m is 0 or 1, Alk is an optionally substituted divalent straight or branched C1-C12 alkylene, or C2-C12 alkenylene, or C2-C12 alkynylene radical or a divalent C3-C12 carbocyclic radical, any of which radicals may contain one or more —O—, —S— or —N(R8)— links wherein R8 represents H or C1-C4 alkyl, C3-C4 alkenyl, C3-C4 alkynyl, or C3-C6 cycloalkyl, and Q represents H; —NR9R10 wherein R9 and R10 independently represents H; C1-C4 alkyl; C3-C4 alkenyl; C3-C4 alkynyl; C3-C6 cycloalkyl; an ester group; an optionally substituted carbocyclic or heterocyclic group; or
    Type: Application
    Filed: August 28, 2007
    Publication date: February 21, 2008
    Applicant: Medigene Limited
    Inventor: Ian Matthews
  • Patent number: 7329731
    Abstract: The present invention provides a soluble T cell receptor (sTCR), which comprises (i) all for part of a TCR ? chain, except the transmembrane domain thereof, and (ii) all or part of a TCR ? chain, except the transmembrane domain thereof. (i) and (ii) each comprise a functional variable domain and at least a part of the constant domain of the TCR chain, and are linked by a disulphide bond between constant domain residues which is not present in native TCR.
    Type: Grant
    Filed: August 30, 2002
    Date of Patent: February 12, 2008
    Assignee: Medigene Limited
    Inventors: Bent Karsten Jakobsen, Meir Glick
  • Patent number: 7276505
    Abstract: Compounds of formula (I) are inhibitors of CD80 and useful in immunomodulation therapy: wherein R1 and R3 independently represent H; F; CI; Br; —NO2; —CN; C1-C6 alkyl optionally substituted by F or Cl; or C1-C6 alkoxy optionally substituted by F; R4 represents a carboxylic acid group (—COOH) or an ester thereof, or —C(?O)NR6R7, —NR7C(?O)R6, —NR7C(?O)OR6, —NHC(?O)NR7R6 or —NHC(?S)NR7R6 wherein R6 represents H, or a radical of formula -(Alk)m-Q wherein m is 0 or 1, Alk is an optionally substituted divalent straight or branched C1-C12 alkylene, or C2-C12 alkenylene, or C2-C12 alkynylene radical or a divalent C3-C12 carbocyclic radical, any of which radicals may contain one or more —O—, —S— or —N(R8)— links wherein R8, represents H or C1-C4 alkyl, C3-C4 alkenyl, C3-C4 alkynyl, or C3-C6 cycloalkyl, and Q represents H; —NR9R10 wherein R9 and R10 independently represents H; C1-C4 alkyl; C3-C4 alkenyl; C3-C4 alkynyl; C3-C6 cycloalkyl; an ester group; an optionally substituted carbocyclic or heterocyclic group; or R9
    Type: Grant
    Filed: March 10, 2004
    Date of Patent: October 2, 2007
    Assignee: Medigene Limited
    Inventor: Ian Richard Matthews