Partially loaded antibodies and methods of their conjugation

Drug – bio-affecting and body treating compositions – Radionuclide or intended radionuclide containing; adjuvant... – Attached to antibody or antibody fragment or immunoglobulin;...

Reexamination Certificate

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C424S001530, C424S178100, C530S391100, C530S391500, C530S391700, C530S405000, C530S408000, C530S412000, C530S413000

Reexamination Certificate

active

07837980

ABSTRACT:
A protein containing one or more activatable groups, e.g., an antibody, is subjected to partial or complete reduction of one or more such bonds to form reactive groups; the resulting protein is reacted with a drug which is reactive with some of the reactive groups, such as certain radiometals, chelating agents, and toxins, so as to form a conjugate useful in, e.g., in vitro diagnosis, in vivo imaging, and therapy.

REFERENCES:
patent: 6884869 (2005-04-01), Senter et al.
patent: 2004/0018194 (2004-01-01), Francisco et al.
patent: 2005/0152894 (2005-07-01), Krummen et al.
patent: 2005/0175619 (2005-08-01), Duffy et al.
patent: 2005/0238649 (2005-10-01), Doronina et al.
patent: 2006/0074008 (2006-04-01), Senter et al.
patent: 2006/0120959 (2006-06-01), De Haen et al.
patent: 2006/0210526 (2006-09-01), Brocchini et al.
patent: WO 2006/034488 (2006-03-01), None
patent: WO 2006/065533 (2006-06-01), None
patent: WO 2006/065533 (2006-06-01), None
Doronina et al, Nature Biotechnology 21(7): 778-941, Jul. 2003.
Sears et al, Proc Nat Acad USA 72(1): 353-357, Jan. 1975.
Del Rosario, R. et al., “Sulfhydryl Site-Specific Cross-Linking and Labeling of Monoclonal Antibodies by a Fluorescent Equlibrium Transfer Alkylation Cross-Link Reagent,”Bioconjugate Chem., 1990, 1, pp. 51-59.
Junutula, J. R. et al., “Rapid identification of reactive cyseteine residues for site-specific labeling of antibody-Fabs”,Journal of Immunological Method, 2008, 332, pp. 41-52.
Wilbur D. et al., “Monoclonal Antibody Fab' Fragment Cross-Linking Using Equlibrium Transfer Alkylation Reagents. A Strategy for Site-Specific Conjugation of Diagnostic and Therapeutic Agents with F (ab')2Fragments,”Bioconjugate Chem., 1994, 5, pp. 220-235.
Doral et al., “Role of Inter-Heavy and Light Chain Disulfide Bonds in the Effector Functions of Human Immunoglobulin IgG1,”Molecular Immunology, 29(12):1487-1491 (1992).
Francisco et al., “cAC10-vcMMAE, an anti-CD30-monomethyl auristatin E conjugate with potent and selective antitumor activity,”Blood, 102(4):1458-1465 (Aug. 15, 2003).
Gillies et al., “Antigen binding and biological activities of engineered mutant chimeric antibodies with human tumor specificities,”Hum. Antibod. Hybridomas, 1(1):47-54 (1990).
Hamann et al., “Gemtuzumab Ozogamicin, A Potent and Selective Anti-CD33 Antibody—Calicheamicin Conjugate for Treatment of Acute Myeloid Leukemia,”Bioconjugate Chem., 13:47-58 (2002).
Lyons et al., “Site-specific attachment to recombinant antibodies via introduced surface cysteine residues,”Prot. Eng., 3(8):703-708 (1990).
Oi et al., “Chimeric Antibodies,”BioTechniques, 4(3):214-221 (1986).
Product description of Mylotarg® (gemtuzumab ozogamicin for Injection), by Wyeth Pharmaceuticals, Inc., Jul. 2004 revision, pp. 1-19.
Qu et al., “Carbohydrates engineered at antibody constant domains can be used for site-specific conjugation of drugs and chelates,”J. Immunological Methods, 213:131-144 (1998).
Rodwell et al., “Site-specific covalent modification of monoclonal antibodies: In vitro and in vivo evaluations,”PNAS, 83:2632-2636 (Apr. 1986).
Saito et al., “Drug delivery strategy utilizing conjugation via reversible disulfide linkages: role and site of cellular reducing activities,”Advanced Drug Delivery Reviews, 55:199-215 (2003).
Stimmel et al., “Site-specific Conjugation on Serine—> Cysteine Variant Monoclonal Antibodies,”J. Biol. Chem., 275(39):30445-30450 (2000).
Sun et al., “Reduction-Alkylation Strategies for the Modification of Specific Monoclonal Antibody Disulfides,”Bioconjugate Chem., 16:1282-1290 (2005).
Written Opinion of Aug. 17, 2006 for International Application PCT/US05/07239.

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