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Monoclonal Antibodies Against Cd30 Lacking In (19) TZZ_97688¥_T (11) EP 1 976 883 B1 (12) EUROPEAN PATENT SPECIFICATION (45) Date of publication and mention (51) Int Cl.: of the grant of the patent: C07K 16/28 (2006.01) A61P 35/00 (2006.01) 03.10.2012 Bulletin 2012/40 A61P 37/00 (2006.01) (21) Application number: 07718000.8 (86) International application number: PCT/US2007/001451 (22) Date of filing: 17.01.2007 (87) International publication number: WO 2007/084672 (26.07.2007 Gazette 2007/30) (54) MONOCLONAL ANTIBODIES AGAINST CD30 LACKING IN FUCOSYL AND XYLOSYL RESIDUES MONOKLONALE ANTIKÖRPER GEGEN CD30 OHNE FUCOSYL- UND XYLOSYLRESTE ANTICORPS MONOCLONAUX ANTI-CD30 DEPOURVUS DE RESIDUS FUCOSYL ET XYLOSYL (84) Designated Contracting States: • WANG, Ming-Bo AT BE BG CH CY CZ DE DK EE ES FI FR GB GR Canberra Australian Capital Territory 2617 (AU) HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR (74) Representative: Tuxworth, Pamela M. Designated Extension States: J A Kemp RS 14 South Square Gray’s Inn (30) Priority: 17.01.2006 US 759298 P London WC1R 5JJ (GB) 07.04.2006 US 790373 P 11.04.2006 US 791178 P (56) References cited: 09.06.2006 US 812702 P WO-A-03/059282 US-A1- 2004 261 148 11.08.2006 US 837202 P 11.08.2006 US 836998 P • P. BORCHMANN ET AL.: "The human anti-CD30 antibody 5F11 shows in vitro and in vivo activity (43) Date of publication of application: against malignant lymphoma." BLOOD, vol. 102, 08.10.2008 Bulletin 2008/41 no. 10, 15 November 2003 (2003-11-15), pages 3737-3742, XP002372400 (73) Proprietors: • N. YAMANE-OHNUKI ET AL.: "Establishment of • Medarex, Inc. FUT8 knockout Chinese hamster ovary cells: An Princeton, NJ 08540 (US) ideal host cell line for producing completely •SynthonB.V. defucosylated antibodies with enhanced 6545 CM Nijmegen (NL) antibody-dependent cellular cytotoxicity." BIOTECHNOLOGY AND BIOENGINEERING, vol. (72) Inventors: 87, no. 5, 5 September 2004 (2004-09-05), pages • BLACK, Amelia, Nancy 614-622, XP002983153 Los Gatos, CA 95032 (US) • T. SHINKAWA ET AL.: "The absence of fucose • PASSMORE, David, B. but not the presence of galactose or bisecting N- San Carlos, CA 94070 (US) acetylglucosamine of human IgG1 complex- type • SRINIVASAN, Mohan oligosaccharides shows the critical role of San Jose, CA 95129 (US) enhancing antibody-dependent cellular • DICKEY, Lynn, F. cytotoxicity." THE JOURNAL OF BIOLOGICAL Cary, NC 27511 (US) CHEMISTRY, vol. 278, no. 5, 31 January 2003 • COX, Kevin, M. (2003-01-31), pages 3466-3473, XP002355427 Raleigh, NC 27608 (US) • PEELE, Charles, G. Apex, NC 27502 (US) Note: Within nine months of the publication of the mention of the grant of the European patent in the European Patent Bulletin, any person may give notice to the European Patent Office of opposition to that patent, in accordance with the Implementing Regulations. Notice of opposition shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention). EP 1 976 883 B1 Printed by Jouve, 75001 PARIS (FR) (Cont. next page) EP 1 976 883 B1 • A. ENGERT ET AL.: "Evaluation of ricin A chain- • J. GASDASKA ET AL.: "Advantages of containing immunotoxins directed against the therapeutic protein production in the aquatic CD30 antigen as potential reagents for the plant Lemna." BIOPROCESSING, vol. 2, March treatment of Hodgkin’s disease." CANCER 2003 (2003-03), pages 49-56, XP002308458 RESEARCH, vol. 50, no. 1, 1 January 1990 • K. COX ET AL.: "Glycan optimization of a human (1990-01-01), pages 84-88, XP000406156 monoclonal antibody in the aquatic plant Lemna • R. SCHNELL ET AL.: "Development of new ricin minor." NATURE BIOTECHNOLOGY, vol. 24, no. A-chain immunotoxins with potent anti-tumor 12, December 2006 (2006-12), pages 1591-1597, effects against human Hodgkin cells in vitro and XP009084966 disseminatedHodgkin tumors in SCID mice using high-affinity monoclonal antibodies directed against the CD30 antigen." INTERNATIONAL JOURNAL OF CANCER, vol. 63, no. 2, 9 October 1995 (1995-10-09), pages 238-244, XP000567764 2 EP 1 976 883 B1 Description Background of the Invention 5 [0001] The CD30 cell surface molecule is a member of the tumor necrosis factor receptor (TNF- R) superfamily. This family of molecules has variable homology among its members and includes nerve growth factor receptor (NGFR), CD120(a), CD120(b), CD27, CD40 and CD95. These molecules are typically characterized by the presence of multiple cysteine-rich repeats in the extracytoplasmic region (de Bruin, P.C., et al. Leukemia 9: 1620-1627 (1995)). Members of this family are considered crucial for regulating proliferation and differentiation of lymphocytes. 10 [0002] CD30 is a type I transmembrane glycoprotein with six (human) or three (murine and rat) cysteine- rich repeats with a central hinge sequence. CD30 exists as a 120 kDa membrane molecule which develops from an intercellular precursor protein of 90 kDa. It is shed from the cell surface as a soluble protein (sCD30) of approximately 90 kDa. Shedding of sCD30 occurs as an active process of viable CD30 cells and is not merely caused by the release from dying or dead cells. cDNAs encoding the CD30 protein have been cloned from expression libraries of the HLTV-1 human T- 15 cell line HUT-102 by immunoscreening with monoclonal antibodies Ki-1 and Ber-H2 (Schwab, U., et al. Nature 299:65 (1982)). The mouse and rat CD30 cDNA has been found to encode 498 and 493 amino acids, respectively. Human CD30 cDNA encodes an additional 90 amino acids, partially duplicated from one of the cysteine rich domains. The CD30 gene has been mapped to 1p36 in humans and 5q36.2 in rats. [0003] CD30 is preferentially expressed by activated lymphoid cells. Specifically, stimulation of CD30 in lymphoid cells 20 has been shown to induce pleiotropic biological effects, including proliferation, activation, differentiation and cell death, depending on cell type, stage of differentiation and presence of other stimuli (Gruss, H.J. et al., Blood 83:2045-2056 (1994)). CD30 was originally identified by the monoclonal antibody Ki-1, which is reactive with antigens expressed on Hodgkin and Reed-Sternberg cells of Hodgkin’s disease (Schwab et al., Nature 299:65 (1982)). Accordingly, CD30 is widely used as a clinical marker for Hodgkin’s lymphoma and related hematological malignancies (Froese et al., J. 25 Immunol. 139:2081 (1987); Carde et al., Eur. J. Cancer 26: 474 (1990)). [0004] CD30 was subsequently shown to be expressed on a subset of non-Hodgkin’s lymphomas (NHL), including Burkitt’s lymphoma, anaplastic large-cell lymphomas (ALCL), cutaneous T-cell lymphoma, nodular small cleaved-cell lymphomas, lymphocytic lymphomas, peripheral T-cell lymphomas, Lennert’s lymphomas, immunoblastic lymphomas, T-cell leukemia/lymphomas (ATLL), adult T-cell leukemia (T-ALL), and entroblastic/centrocytic (cb/cc) follicular lympho- 30 mas (Stein et al., Blood 66:848 (1985); Miettinen, Arch. Pathol. Lab. Med. 116:1197 (1992); Piris et al., Histopathology 17:211 (1990); Burns et al., Am. J. Clin. Pathol. 93: 327(1990); and Eckert et al., Am. J. Dermatopathol. 11: 345 (1989)), as well as several virally-transformed lines such as human T-Cell Lymphotrophic Virus I or II transformed T-cells, and Epstein-Barr Virus transformed B-cells (Stein et al., Blood 66:848 (1985); Andreesen et al., Blood 63:1299 (1984)). In addition, CD30 expression has been documented in embryonal carcinomas, nonembryonal carcinomas, malignant 35 melanomas, mesenchymal tumors, and myeloid cell lines and macrophage at late stages of differentiation (Schwarting et al., Blood 74:1678 (1989); Pallesen et al., Am J. Pathol. 133:446 (1988); Mechtersheimer et al., Cancer 66:1732 (1990); Andreesen et al., Am. J. Pathol. 134:187 (1989)). [0005] Since the percentage of CD30-positive cells in normal individuals is quite small, the expression of CD30 in tumor cells renders it an important target for antibody mediated therapy to specifically target therapeutic agents against 40 CD30-positive neoplastic cells (Chaiarle, R., et al. Clin. Immunol. 90(2):157-164 (1999)). Antibody mediated therapy has been shown to increase cytotoxicity of CD30- positive cells by both complement activation and antibody dependent cellular cytotoxicity (ADCE) (Pohl C., et al. Int J Cancer 54:418 (1993)). However, while the results obtained to date clearly establish CD30 as a useful target for immunotherapy, they also show that currently available murine antibodies do not constitute ideal therapeutic agents. Passive antibody therapy has not been effectivein vitro or in vivo against 45 patients with refractory Hodgkin’s disease. A clinical trial of the anti-CD30 antibody Ber-H2 showed localization of the antibody, but no responses (Falini B. et al. (1992) Brit J Haematol. 82: 38-45; Koon, H.B. et al. (2000) Curr Opin in Oncol. 12:588-593). Through coupling of an anti-CD30 antibody to a deglycosylated Ricin toxin-A chain toxin, cytotoxicity was shown in the treatment of human Hodgkin’s Disease in a SCID mouse model, although grade 3 toxicities were also seen in the subjects (Schell, R. et al. (2002) Annals of Oncology 13:57-66). WO03/059282 discloses the characterization of 50 the human anti-CD30 monoclonal antibodies 5F11, 17G1 and 2H9. Borchmann et al (Blood; 2003; 102(10) p3737-3742) also discloses the characterization of the antibody 5F11. Shinkawa et al (Journal of Biological Chemistry; 2003; 278 (5) p3466-3473) and Yamane-Ohnuki et al (Biotechnology and Bioengineering; 2004; 87(5) p614-622) disclose methods of producing antibodies lacking fucose which have enhanced ADCC. [0006] A number of plant species have been targeted for use in "molecular farming" of mammalian proteins of phar- 55 maceutical interest. These plant expression systems provide for low cost production of biologically active mammalian proteins and are readily amenable to rapid and economical scale-up (Ma et al.
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