PROBLEM TO BE SOLVED: To provide a radioactive labeling agent which can detect not only cancer primary focus but also bone metastasis simultaneously.SOLUTION: The inventors have confirmed that a compound comprising ligand-(Asp)n-RGD containing cyclic peptide comprising radioactive material can detect not only cancer primary focus but also bone metastasis simultaneously and have completed a radioactive labeling agent comprising the compound.COPYRIGHT: (C)2015,JPO&INPIT【課題】癌の原発巣のみならず、骨転移をも同時に検出できる放射性標識薬剤を提供する。【解決手段】放射性物質を含む配位子-(Asp)n-RGD含有環状ペプチドを含む化合物が、癌の原発巣のみならず、骨転移をも同時に検出できることを確認して、該化合物を含む放射性標識薬剤を完成した。【選択図】図1
