Peptide radiopharmaceutical applications

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

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424 111, 424 165, 530311, A61K 5100, A61M 3614

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active

059852402

ABSTRACT:
The invention relates to radiotherapy with somatostatin-derived peptides labeled with medically useful metal ions. The invention in particular provides for methods and reagents for labeling somatostatin-derived peptides with perrhenate, in which a solution including somatostatin-derived peptide analogue containing at least one disulfide bond is provided, the solution is reacted with stannous ions and with a radioisotope, wherein the stannous ions are sufficient to substantially reduce the disulfide bonds of the peptide and the radioisotope, and the radiolabeled somatostatin-derived peptide analogue recovered. Also provided are methods for regional administration of radiolabeled somatostatin-derived peptides, methods for enhanced regional retention of radiolabeled somatostatin-derived peptides, methods for treatment of arthritis using radiolabeled somatostatin derived peptides, and methods for stabilizing radiolabeled somatostatin derived peptides.

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Bender H, Zamora PO, Biersack HJ: Scintigrap

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