March 2009 in “The Journal of Urology” This paper discusses the potential of PSA doubling time after radical prostatectomy to predict overall survival but reports no new results.
April 2024 in “The Journal of urology/The journal of urology” This study observed that although 5-alpha-reductase inhibitors reduce PSA density in patients on active surveillance for prostate cancer, those who progress to more serious disease still show higher PSA densities, suggesting these inhibitors accentuate differences in clinically significant cases.