EValuation of radIOLigand Treatment in mEn With Metastatic Castration-resistant Prostate Cancer With [161Tb]Tb-PSMA-I&T

During dose escalation, doses of \[161 Tb\]Tb PSMA I\&T will range between 4.4 GBq to 9.5 GBq. The recommended phase 2 dose of \[161 Tb\]Tb PSMA I\&T will be used during dose expansion. \[161Tb\]Tb-PSMA-I\&T dose will be reduced by 0.4 GBq for each subsequent cycles (2 to 6).