Prof. Takayuki Hamano received his MD degree in 1998 from Osaka University, Japan, and completed his residency and fellowships in internal medicine and nephrology. After receiving his Ph.D. degree from Osaka University in 2005, he joined the faculty of the Department of Nephrology, Osaka University Graduate School of Medicine in 2007. He had been a member of the Committee of Renal Data Registry of the Japanese Society for Dialysis Therapy from 2007 through 2021. His main research interest has been in the area of complications of CKD, namely CKD-MBD and renal anemia. Having much interest in cohort studies enrolling thousands of CKD patients, he moved to the Center for Clinical Epidemiology and Biostatistics, Perelman School of Medicine at the University of Pennsylvania in 2008, to be involved in the CRIC study, and worked for international collaborative studies between CKD cohorts in Japan and the US under the direction of Prof. Harold Feldman until 2012. His current affiliation is the Department of Nephrology at Nagoya City University Graduate School of Medical Sciences, for which he functioned as Professor.