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.
新的并且改良的化合物,用于放射性诊断成像或放射治疗,其
化学式为M-N-O-P-G,其中M为
金属
螯合剂(以
金属放射性核素形式复合或未复合),N-O-P为连接剂,G为GRP受体靶向肽。本发明还提供了使用该化合物对患者进行成像和/或放射治疗的方法。此外,还提供了一种从该化合物制备诊断成像试剂的方法。还提供了一种制备放射性治疗试剂的方法。