FOLH1 and neoplasm: Although [177Lu]Lu-PSMA I&T (tumor-to-blood, 408; tumor-to-kidney, 0.2) exhibited rather slow excretion in mice, [177Lu]Lu-PSMA-617 showed the highest tumor-to-kidney ratio (tumor-to-blood, 1,424; tumor-to-kidney, 5.9), whereas its tumor-to-blood ratio was lower than all radiohybrid ligands (Supplemental Tables 5 and 6).