FOLH1 and neoplasm: Importantly, the area under the curve of non-decay-corrected biodistribution data (AUC0→192 h), showed a 1.4-fold higher tumor uptake for [177Lu]Lu-Ibu-DAB-PSMA as compared to [177Lu]Lu-PSMA-617 and a 2.6-fold lower blood retention than for [177Lu]Lu-PSMA-ALB-56 [11, 16, 19].