FOLH1 and neoplasm: As a result, a substantial accumulation of [177Lu]Lu-PSMA-TB-01 was seen in the PC-3 PIP tumor xenografts already at 1 h p.i. (37 ± 4% IA/g), which was further increased over the following hours to 69 ± 13% IA/g at 4 h after injection.