Method to directly radiolabel antibodies for diagnostic imaging

Drug – bio-affecting and body treating compositions – Radionuclide or intended radionuclide containing; adjuvant...

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530388, 530389, 530402, A61K 39395

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active

050116762

ABSTRACT:
The invention is a novel method and kit for directly radiolabeling proteins such as antibodies or antibody fragments for diagnostic and therapeutic purposes. The method comprises incubating a protein-containing solution with a solution of sodium ascorbate; adding a required quantity of reduced radionuclide to the incubated protein. A kit is also provided wherein the protein and/or reducing agents may be in lyophilized form.

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