Tumor-to-blood ratios at 24 h p.i. were determined to be 188.42 and 158.11 for [225Ac]Ac-mcp-M-PSMA and [225Ac]Ac-mcp-D-PSMA, respectively, and tumor-to-muscle ratios at 24 h p.i. were calculated as 310.82 and 275.77. This evidence concerns the gene FOLH1 and neoplasm.