Study to Explore Morbimortality in Patients Dialyzed With the Theranova HDx in Comparison to On-Line-Hemodiafiltration

This is an open-label, prospective, 1:1 randomized, parallel-group, study to evaluate the safety and efficacy of Expanded Hemodialysis (HDx) compared to hemodiafiltration (HDF) in patients with chronic kidney disease in Spain for up to 36 months. Stable incident hemodialysis patients from hemodialysis in-hospital units and related satellite centers in Spain.