New and improved compounds for use in radiodiagnostic imaging or radiotherapy having the formula M-N—O—P-G, wherein M is the metal chelator (in the form complexed with a metal radionuclide or not), N—O—P is the linker, and G is the GRP receptor targeting peptide. Methods for imaging a patient and/or providing radiotherapy to a patient using the compounds of the invention are also provided. A method for preparing a diagnostic imaging agent from the compound is further provided. A method for preparing a radiotherapeutic agent is further provided.
新的和改进的化合物,可用于放射性诊断成像或放射治疗,具有公式M-N—O—P-G,其中M是
金属
螯合剂(以与
金属放射性核素或未结合的形式),N—O—P是连接物,G是GRP受体靶向肽。本发明还提供了利用这些化合物对患者进行成像和/或放射治疗的方法。还提供了从该化合物制备诊断成像试剂的方法。还提供了制备放射治疗试剂的方法。