Chi Chi KN KN Saad Saad F F Chowdhury Chowdhury S S Prostate-specific antigen (PSA) kinetics in patients with advanced prostate cancer treated with apalutamide: Results from the TITAN and SPARTAN studies Prostate-specific antigen (PSA) kinetics in patients with advanced prostate cancer treated with apalutamide: Results from the TITAN and SPARTAN studies JCO JCO 2020 2020 38 38 5541 5541 5541 5541 Chi KN, Saad F, Chowdhury S et al (2020) Prostate-specific antigen (PSA) kinetics in patients with advanced prostate cancer treated with apalutamide: Results from the TITAN and SPARTAN studies. The gene discussed is KLK3; the disease is prostate cancer.