Mice with LNCaP tumors injected with 100 MBq of [177Lu]-PSMA-617, with or without (5 mg/kg) rA1M, imaged 24 h after injection using SPECT/CT showed no significant differences in [177Lu]Lu-PSMA-617 tumor uptake (Figure 1A) and displayed a similar relationship between the uptake and tumor size (Figure 1B). Here, FOLH1 is linked to neoplasm.