Patents Assigned to Celltech R & D Limited
  • Patent number: 7012076
    Abstract: Fused bicyclic amines of formula (1) are described wherein Ar is an aryl or heteroaryl group; Y is a —S(O2)— or —C(O)— group; R1 is a hydrogen or halogen atom or an alkyl, haloalkyl, alkoxy, haloalkoxy or cyano group; X is a nitrogen atom or a C(R1a) group where R1a is as defined for R1 and may be the same or different; W and Z are each a carbon atom and together with U form an optionally substituted five- or six-membered monocyclic aromatic or heteroaromatic group; and the salts, solvates, hydrates and N-oxides thereof. The compounds are able to inhibit the activity of Class 1 receptor tyrosine kinases and are of use in the prophylaxis and treatment of hyperproliferative disorders such as cancer, psoriasis, restenosis, atherosclerosis and fibrosis.
    Type: Grant
    Filed: March 29, 2001
    Date of Patent: March 14, 2006
    Assignee: Celltech R&D Limited
    Inventors: David Festus Charles Moffat, Peter David Davis
  • Publication number: 20060029593
    Abstract: CDR-grafted antibody heavy and light chains comprise acceptor framework and donor antigen binding regions, the heavy chains comprising donor residues at at least one of positions (6, 23) and/or (24, 48) and/or (49, 71) and/or (73, 75) and/or (76) and/or (78) and (88) and/or (91). The CDR-grafted light chains comprise donor residues at at least one of positions (1) and/or (3) and (46) and/or (47) or at at least one of positions (46,48, 58) and (71). The CDR-grafted antibodies arc preferably humanised antibodies, having non human, e.g. rodent, donor and human acceptor frameworks, and may be used for in vivo therapy and diagnosis.
    Type: Application
    Filed: September 10, 2004
    Publication date: February 9, 2006
    Applicant: Celltech R&D Limited
    Inventors: John Adair, Diljeet Athwal, John Emtage
  • Patent number: 6953798
    Abstract: Alkanoic acid derivatives of formula (1) are described: Ar1(Alka)rL1Ar2CH(R1)C(Ra)(Ra?)R??(1) Ar1 is an optionally substituted aromatic or heteroarotic group; L1 is a covalent bond or a linker atom or group; Ar2 is an optionally substituted phenylene or nitrogen-containing six-membered heteroarylene group; R is a carboxylic acid (—CO2H) or a derivative thereof; and the salts, solvates, hydrates and N-oxides thereof. The compounds are able to inhibit the binding of ?4 integrins to their ligands and are of use in the prophylaxis and treatment of immune or inflammatory disorders.
    Type: Grant
    Filed: November 29, 1999
    Date of Patent: October 11, 2005
    Assignee: Celltech R&D Limited
    Inventors: John Robert Porter, John Clifford Head, Graham John Warrellow, Sarah Catherine Archibald
  • Patent number: 6951943
    Abstract: A process for the preparation of a class of phenylalanine enamide derivatives is described: wherein: Ar1 is an optionally substituted aromatic or heteroaromatic group; L2 is a linker group selected from —N(R4)— [where R4 is a hydrogen atom or an optionally substituted straight or branched C1-6alkyl group], —CON(R4)—, or —S(O)2N(R4)—; R1 is a carboxylic acid (—CO2H) or a derivative or biostere thereof; R2 is a hydrogen atom or a C1-6alkyl group; Rx, Ry and Rz which may be the same or different is each an atom or group -L1(Alk1)n(R3)v; and the salts, solvates, hydrates and N-oxides thereof; which comprises reacting a compound of formula (2): wherein: Qa is a group —N(R4)H; and the salts, solvates, hydrates and N-oxides thereof; with a compound Ar1W wherein W is a group selected from X1(wherein X1 is a leaving atom or group), —COX2 (wherein X2 is a halogen atom or a —OH group) or —SO2X3 (in which X3 is a halogen atom).
    Type: Grant
    Filed: July 16, 2003
    Date of Patent: October 4, 2005
    Assignee: Celltech R & D Limited
    Inventors: Benjamin Mark Skead, Nicholas David Tyrrell, Stephen Wilfred Jones, Michael Handforth Brookes
  • Publication number: 20050164247
    Abstract: Isolated nucleic acid molecules are provided which encode Fkhsf, as well as mutant forms thereof. Also provided are expression vectors suitable for expressing such nucleic acid molecules, and host cells containing such expression vectors. Utilizing assays based upon the nucleic acid sequences disclosed herein (as well as mutant forms thereof), numerous molecules may be identified which modulate the immune system.
    Type: Application
    Filed: November 15, 2004
    Publication date: July 28, 2005
    Applicant: Celltech R & D Limited
    Inventors: Mary Brunkow, Eric Jeffery, Kathryn Hjerrild, Fred Ramsdell
  • Patent number: 6911451
    Abstract: Phenylalanine derivatives of formula (1) are described: wherein L1 is a linker atom or group; X1 is a group selected from —N(R3)CO—, —N(R3)SO2—, —N(R3)C(O)O— or —N(R3)CON(R3a)—; and R is a carboxylic acid or a derivative thereof. The compounds are able to inhibit the binding of a 4 integrins to their ligands and are of use in the prophylaxis and treatment of diseases or disorders involving inflammation.
    Type: Grant
    Filed: June 4, 1999
    Date of Patent: June 28, 2005
    Assignee: Celltech R&D Limited
    Inventors: John Robert Porter, John Clifford Head, Graham John Warrellow, Sarah Catherine Archibald
  • Publication number: 20050136054
    Abstract: CDR-grafted antibody heavy and light chains comprise acceptor framework and donor antigen binding regions, the heavy chains comprising donor residues at at least one of positions (6, 23) and/or (24, 48) and/or (49, 71) and/or (73, 75) and/or (76) and/or (78) and (88) and/or (91). The CDR-grafted light chains comprise donor residues at at least one of positions (1) and/or (3) and (46) and/or (47) or at at least one of positions (46, 48, 58) and (71). The CDR-grafted antibodies are preferably humanised antibodies, having non human, e.g. rodent, donor and human acceptor frameworks, and may be used for in vivo therapy and diagnosis. A generally applicable protocol is disclosed for obtaining CDR-grafted antibodies.
    Type: Application
    Filed: September 10, 2004
    Publication date: June 23, 2005
    Applicant: Celltech R&D Limited
    Inventors: John Adair, Diljeet Athwal, John Emtage
  • Publication number: 20050123534
    Abstract: CDR-grafted antibody heavy and light chains comprise acceptor framework and donor antigen binding regions, the heavy chains comprising donor residues at at least one of positions (6, 23) and/or (24, 48) and/or (49, 71) and/or (73, 75) and/or (76) and/or (78) and (88) and/or (91). The CDR-grafted light chains comprise donor residues at at least one of positions (1) and/or (3) and (46) and/or (47) or at at least one of positions (46,48, 58) and (71). The CDR-grafted antibodies are preferably humanised antibodies, having non human, e.g. rodent, donor and human acceptor frameworks, and may be used for in vivo therapy and diagnosis. A generally applicable protocol is disclosed for obtaining CDR-grafted antibodies.
    Type: Application
    Filed: September 10, 2004
    Publication date: June 9, 2005
    Applicant: Celltech R&D Limited
    Inventors: John Adair, Diljeet Athwal, John Emtage
  • Publication number: 20050106601
    Abstract: Isolated nucleic acid molecules are provided which encode Fkhsf, as well as mutant forms thereof. Also provided are expression vectors suitable for expressing such nucleic acid molecules, and host cells containing such expression vectors. Utilizing assays based upon the nucleic acid sequences disclosed herein (as well as mutant forms thereof), numerous molecules may be identified which modulate the immune system.
    Type: Application
    Filed: September 3, 2004
    Publication date: May 19, 2005
    Applicant: Celltech R & D Limited
    Inventors: Mary Brunkow, Eric Jeffery, Kathryn Hjerrild, Fred Ramsdell
  • Publication number: 20050106683
    Abstract: Compositions and methods relating to antibodies that specifically bind to TGF-beta binding proteins are provided. These methods and compositions relate to altering bone mineral density by interfering with the interaction between a TGF-beta binding protein sclerostin and a TGF-beta superfamily member, particularly a bone morphogenic protein. Increasing bone mineral density has uses in diseases and conditions in which low bone mineral density typifies the condition, such as osteopenia, osteoporosis, and bone fractures.
    Type: Application
    Filed: June 15, 2004
    Publication date: May 19, 2005
    Applicant: Celltech R & D Limited
    Inventors: David Winkler, Jiye Shi, John Latham
  • Publication number: 20050080086
    Abstract: The synthesis of novel diketopiperazines, their use in inhibiting cellular events such as those involving NFK-?, NFK-? and in the treatment of inflammation events, a combinatorial library of diverse diketopiperazines and process for their synthesis as a library and as individual compounds. In particular novel diketopiperazines are disclosed including their synthesis and use in cellular events such as activation of the transcription factor, nuclear factor, TNF-?, TNF-? and also apoptosis.
    Type: Application
    Filed: July 2, 2004
    Publication date: April 14, 2005
    Applicant: Celltech R & D Limited
    Inventors: Jim Boyce, J. Howbert, John Tabone
  • Patent number: 6878718
    Abstract: Phenylalanine enamide derivatives of formula (1) are described: wherein R1 is a group Ar1L2Ar2Alk- in which: Ar1 is an optionally substituted aromatic or heteroaromatic group; L2 is a covalent bond or a linker atom or group; Ar2 is an optionally substituted arylene or heteroarylene group; and Alk is a chain —CH2—CH(R)—, —CH?C(R)— or ?in which R is a carboxylic acid (—CO2H) or a derivative or biostere thereof; X is an —O— or —S— atom or —N(R2)— group in which: Rx, Ry and Rz which may be the same or different is each a hydrogen atom or an optional substituent; or Rz is an atom or group as previously defined and Rx and Ry are joined together to form an optionally substituted spiro linked cycloaliphatic or heterocycloaliphatic group; and the salts, solvates, hydrates and N-oxides thereof.
    Type: Grant
    Filed: February 22, 2002
    Date of Patent: April 12, 2005
    Assignee: Celltech R&D Limited
    Inventors: Stephen Brand, Stuart Bailey, Julien A. Brown, James A. Johnson, John R. Porter, John C. Head
  • Patent number: 6872719
    Abstract: Phenylalanine enamide derivatives of formula (1) are described: wherein R1 is a —CH3, —(CH2)3CH3, —CH2CH2OH, —CH2CH2OCH3, —CH2CH2OCH2CH2OH, —CH2CH2OCH2CH2OCH3, group; and the salts, solvates and N-oxides thereof. Compounds according to the invention are potent and selective inhibitors of ?4 integrins. The compounds are of use in modulating cell adhesion and in particular are of use in the prophylaxis and treatment of diseases or disorders including inflammation in which the extravasation of leukocytes plays a role and the invention extends to such a use and to the use of the compounds for the manufacture of a medicament for treating such diseases or disorders.
    Type: Grant
    Filed: July 16, 2003
    Date of Patent: March 29, 2005
    Assignee: Celltech R & D Limited
    Inventors: Julien Alistair Brown, Stuart Bailey, Stephen Brand
  • Patent number: 6835738
    Abstract: Phenylalanine enamide derivatives of formula (1) are described: wherein R1 is a —CH(CH3)2, —(CH2)2CH3, —CH2C(CH3)3, —CH2CH2OH, —CH2CH2OCH3, —CH2CH2OCH2CH2OH, —CH2CH2OCH2CH2OCH3, group; and the salts, solvates and N-oxides thereof. Compounds according to the invention are potent and selective inhibitors of &agr;4 integrins. The compounds are of use in modulating cell adhesion and in particular are of use in the prophylaxis and treatment of diseases or disorders including inflammation in which the extravasation of leukocytes plays a role and the invention extends to such a use and to the use of the compounds for the manufacture of a medicament for treating such diseases or disorders.
    Type: Grant
    Filed: July 16, 2003
    Date of Patent: December 28, 2004
    Assignee: Celltech R&D Limited
    Inventors: Julien Alistair Brown, Stuart Bailey, Stephen Brand
  • Publication number: 20040235876
    Abstract: Pyrimidines of formla (1) are described: 1
    Type: Application
    Filed: June 22, 2004
    Publication date: November 25, 2004
    Applicant: Celltech R&D Limited
    Inventors: Jeremy Martin Davis, David Festus Charles Moffat
  • Patent number: 6808901
    Abstract: A process for the production of a chimeric antibody, comprising: a) preparing a replicable expression vector including a suitable promoter operably linked to a DNA sequence comprising a first part which encodes at least the variable region of the heavy or light chain of an Ig molecule and a second part which encodes at least part of a second protein; b) if necessary, preparing a replicable expression vector incuding a suitable promoter operably linked to a DNA sequence which encodes at least the variable region of a complementary light or heavy chain respectively of an Ig molecule; c) transforming an immortalized mammalian cell line with the or both prepared vectors; and d) culturing said transformed cell line to produce the chimeric antibody; chimeric antibodies produced by this process; and plasmids and transformed cell lines used in the process.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: October 26, 2004
    Assignee: Celltech R&D Limited
    Inventors: Michael Samuel Neuberger, Terence Howard Rabbitts
  • Publication number: 20040185040
    Abstract: The invention provides methods for modulating the immune system using anti-CD83 antibodies that can influence CD83 function.
    Type: Application
    Filed: November 21, 2003
    Publication date: September 23, 2004
    Applicant: Celltech R & D Limited
    Inventors: Leon Fernando Garcia-Martinez, Yuching Chen, Dawn Andrews
  • Patent number: 6780874
    Abstract: Enamine derivatives of formula (1) are described: wherein R1 is a group Ar1L2Ar2Alk- in, which Ar1 is an aromatic or heteroaromatic group, L2 is a covalent bond or a linker atom or group, Ar2 is an arylene or heteroarylene group and Alk is a chain —CH2—CH(R)—, —CH═C(R)— or in which R is a carboxylic acid or a derivative or biostere thereof; R2 is a hydrogen atom or a C1-6alkyl group; Cy is a cycloaliphatic or heterocycloaliphatic ring in which X is a N atom or a C(Rw) group; Rx is a oxo, thioxo, or imino group; Rw and Rz is each a hydrogen atom or optional substituent; provided that Cy is not a cyclobutenedione group; and the salts, solvates, hydrates and N-oxides thereof. The compounds are able to inhibit the binding of integrins to their ligands and are of use in the prophylaxis and treatment of immune or inflammatory disorders, or disorders involving the inappropriate growth or migration of cells.
    Type: Grant
    Filed: June 10, 2003
    Date of Patent: August 24, 2004
    Assignee: Celltech R & D Limited
    Inventors: Timothy John Norman, John Robert Porter, Brian Woodside Hutchinson, Andrew James Ratcliffe, John Clifford Head, Rikki Peter Alexander, Barry John Langham, Graham John Warrellow, Sarah Catherine Archibald, Janeen Marsha Linsley
  • Patent number: 6750325
    Abstract: The invention provides recombinant antibody molecules comprising antigen binding regions derived from the heavy and/or light chain variable regions of a donor anti-CD3 antibody, e.g. OKT3, and which have anti-CD3 binding specificity, preferably of affinity similar to that of OKT3. The recombinant antibody is preferably a humanized antibody and may be a chimeric or CDR-grafted antibody. A method is disclosed for preparing CDR-grafted humanized antibodies in which, in addition to the CDR's non-human antibody residues are preferably used at positions 23, 24, 49, 71, 73 and 78 of the heavy chain variable region and at positions 46, 48, 58, and 71 of the light chain variable region. The recombinant, especially the humanized, anti-CD3 antibodies may be used for in vivo therapy or diagnosis.
    Type: Grant
    Filed: July 6, 1999
    Date of Patent: June 15, 2004
    Assignee: Celltech R&D Limited
    Inventors: Linda Kay Jolliffe, Robert Allan Zivin, John Robert Adair, Diljeet Singh Athwal
  • Patent number: 6740654
    Abstract: Squaric acid derivatives of formula (1) are described: wherein Het is an optionally substituted bicyclic fused ring heteroaromatic group; L2 is a covalent bond or an atom or group —O—, —S—, —C(O)—, —C(S)—, —S(O)—, —S(O)2, —N(R8)— or —C(R8)(R8a)—; Ar2 is an optionally substituted aromatic or heteroaromatic group; Alk is a chain  in which R is a carboxylic acid (—CO2H) or a derivative or biostere thereof; R1 is a hydrogen atom or a C1-6alkyl group; L1 is a covalent bond or a linker atom or group; Alk1 is an optionally substituted aliphatic chain; n is zero or the integer 1; R2 is a hydrogen atom or an optionally substituted heteroaliphatic, cycloaliphatic, heterocycloaliphatic, polycycloalphatic, heteropolycycloaliphatic, aromatic or heteroaromatic group other than a 2,6-naphthyridin-1-yl, isoquinolin-1-yl, 2,7-naphthyridin-1-yl or quinazolin-4-yl group; and the salt
    Type: Grant
    Filed: July 5, 2001
    Date of Patent: May 25, 2004
    Assignee: Celltech R & D Limited
    Inventors: Barry John Langham, Rikki Peter Alexander, John Clifford Head, Janeen Marsha Linsley, John Robert Porter, Sarah Catherine Archibald, Graham John Warrellow