Abstract
In this study, 177Lu-(4-{[(bis(phosphonomethyl))carbamoyl]methyl}-7,10-bis(carboxymethyl)-1,4,7,10-tetraazacyclododec-1-yl) acetic acid (177Lu-BPAMD) was successfully prepared. The quality control, partition coefficient, hydroxyapatite binding assay and stability of the complex were determined. For better comparison, biodistribution patterns of 177Lu-BPAMD and 177Lu-EDTMP complexes were compared in same animal model. 177Lu-BPAMD was prepared with high radiochemical purity (>93 %) and specific activity of 534 GBq/mmol at the optimal conditions. Comparative study between 177Lu-BPAMD and 177Lu-EDTMP indicated higher bone uptake and lesser accumulation in the other organs for 177Lu-BPAMD. 177Lu-BPAMD can be considered as a promising agent for bone pain palliation in the near future.
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