Abstract
Renal anemia is a common complication of end stage renal disease (ESRD) that require continuous replacement therapy with recombinant human erythropoietin stimulating agents (rESA) in most patients. Biosimilar erythropoietin stimulating agents (bESA) are available in Kazakhstan and that most of the dialysis centers switched their patients into the more cost effective bESA. However, important properties of bESA such as dose equivalency to rESA and the ability to maintain hemoglobin (HB) target levels were unknown.