Mallinckrodt Medical, Inc.

James W Brodack

Edward A Deutsch

Dennis L Nosco

Karen F Deutsch

Mary Marmion Dyszlewski

Mark A DeRosch

Kathleen M Miller

Wilhelmus T Goedemans

Martinus T Maria De Jong

The present invention relates to novel radiopharmaceutical imaging agents having non-stannous reductants. The present invention further relates to kits for forming radiopharmaceutical imaging agents, such kits including non-stannous reducing agents.

Radiopharmaceutical formulations having non-stannous reductants

The present invention provides radiation synovectomy compositions for treating inflamed synovium containing a radionuclide complex bound to a hydroxyapatite-like matrix as the radiolabelled synovectomy agent in a sufficient amount to provide satisfactory synovectomy of the inflamed synovium together with a pharmaceutically acceptable vehicle, the radionuclide being a beta emitter that will substantially ablate the inflamed synovium, but not significantly damage underlying articular cartilage, the radionuclide complex being substantially kinetically stable, and if said radionuclide or radionuclide complex leaks from said joint it will be excreted from the body, the agent having a particle size such that there is essentially little or no leakage of the radionuclide complex from the joint after administration.

Radionuclide labelled particles useful for radiation synovectomy

Gentisic acid and its derivatives substantially inhibit peptide autoradiolysis. Gentisic acid or its derivatives may also be used in combination with other stabilizers such as inositol and ascorbic acid to inhibit autoradiolysis of radiolabeled peptides.

Stabilizers to prevent autoradiolysis of radiolabeled peptides and

The present invention provides radiation synovectomy compositions for treating inflamed synovium containing a radionuclide complex bound to a substantially insoluble particle as the radiolabelled synovectomy agent in a sufficient amount of provide satisfactory synovectomy of the inflamed synovium together with a pharmaceutically acceptable vehicle, the radionuclide being a beta emitter that will substantially ablate the inflamed synovium, but not significantly damage underlying articular cartilage, the radionuclide complex being substantially kinetically stable, and if said radionuclide or radionuclide complex leaks from said joint it will be excreted from the body, the agent having a particle size such that there is essentially little or no leakage of the radionuclide complex from the joint after administration.

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Florissant, MO, United States of America

James W Brodack