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radium Ra 224-labeled calcium carbonate microparticles

A radiopharmaceutical composed of biodegradable calcium carbonate microspheres labeled with the alpha-emitting radioisotope radium Ra 224, with antineoplastic activity. Upon intraperitoneal (IP) administration of the radium Ra 224-labeled calcium carbonate microparticles, Ra 224 kills tumor cells through local emission of high energy alpha particles, causing DNA double-strand breaks. The short range effects of alpha emission allows for localized DNA damage with limited toxicity to nearby healthy tissue.
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Synonym:224Ra-labeled calcium carbonate micro-particles
alpha-emitting 224Ra calcium carbonate microspheres
Ra-224 alpha-emitting calcium carbonate microparticles
Foreign brand name:Radspherin
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