In the PSMAfore randomized controlled trial patients with chemotherapy naïve castrate resistant metastasized prostate cancer (CRPC) progressing after one line of a second-generation androgen receptor signaling inhibitor (ARSI) were randomized to the experimental arm of lutetium-177 PSMA-617 or the control arm of another ARSI. The gene discussed is AR; the disease is Familial prostate cancer.