FOLH1 and neoplasm: In 22Rv1 xenografts, 177Lu-rhPSMA-10.1 suppressed tumor growth versus vehicle to a greater extent than did 177Lu-PSMA-I&T (significant growth inhibition from day 25 [P < 0.05]) and similarly in extent to 177Lu-PSMA-617 (from day 18 [P < 0.05]).