KLK3 and prostate cancer: A retrospective matched pair analysis of patients with biochemically recurrent or relapsed prostate cancer comparing patients scanned with [18F]F-DCFPyL or [68Ga]Ga-PSMA-11 indicated that [18F]F-DCFPyL had higher sensitivity (88% vs. 66%) for PSA values between 0.5 and 3.5 μg/L and similar sensitivity otherwise [58].