First, a simple 211At-labeled PSMA ligand, [211At]astatobenzoic acid conjugated Glu–urea–Lys, ((2S)-2-(3-(1-carboxy-5-(4-211At-astatobenzamido)pentyl)ureido)-pentanedioic acid, Fig. 12a), was reported in 2016 [107]: This compound significantly inhibited tumor growth in PSMA + PC3 PIP tumor-bearing mice. This evidence concerns the gene FOLH1 and neoplasm.