Pharmacokinetic parameters are important for calculating the absorbed dose; they also provide an indirect measure of in vivo stability a radiopharmaceutical. The aim study was to determine excretion rate activity 177 Lu-DOTA-PSMA-617 and MCA 5–10 microns, 188 Re, from blood urine patients undergoing systemic local radiotherapy clinical trials. Materials methods: involved radiometry samples 12 m...