This is a prospective, randomized, multicenter, parallel, placebo-controlled, phase III study for evaluation of clinical efficacy and immunogenicity of drug Eritromax® - (rHuEPO Blau Farmacêutica S/A.) compared to Eprex® (Janssen-Cilag rHuEPO) for the treatment of patients with secondary anemia to chronic kidney disease (CKD), throughout the correction phase by assessing the change in hemoglobin levels.

This is a phase III study, in which participants with secondary anemia to chronic kidney disease will receive two subcutaneous injection of 50 UI/Kg of the investigational product (Eritromax®) or Eprex® per week. After four weeks of treatment, the dose of drugs will be change by clinical judged throughout study according to laboratory results. The evidence of efficacy will be evaluated by hemoglobin levels alteration throughout the correction phase (first four weeks). Secondary efficacy and safety endpoints will be assessed by: maintenance of hemoglobin levels (baseline vs. end of treatment) over maintenance phase; dose of EPO required during correction and maintenance phase; Transfusion needs; report of adverse events (including type, frequency, intensity, serioussness, severity and relation to the investigation product) throughouht 12 months of follow-up. Additionally, the immunological response of products over study will be evaluated by quantification of anti-erythropoietin every six months.

Inclusion Criteria:

1. Voluntary participation and agree to all the purposes of the study by signing and dating ICF;
2. Male or female participantes, regardless of race or social class;
3. Participants aged ≥18 and ≤70 years;
4. Bearer dialysis-dependent CKD (hemodialysis and peritoneal dialysis *);
5. Clinical diagnosis of anemia, characterized as hemoglobin levels <10g/dL before the start of the study;
6. Adequate dialysis: Kt / V ≥ 1.2 for hemodialysis patients (based on the calculation of Daugirdas II) and ≥ 1.7 for patients on peritoneal dialysis;
7. Adequate iron stores (TSAT> 20% and serum ferritin> 100ng/ml) prior to initiation of treatment with erythropoietin.

Exclusion Criteria:

1. Participation in clinical trials in the 12 months preceding the survey;
2. Patients with uncontrolled hypertension, with mean above 180/100mmHg and whose requiring hospitalization in the last 6 months;
3. Presence of other causes of anemia than CKD, such as bleeding, hemolysis, pernicious anemia and hemoglobinopathies;
4. Patients who present changes or clinical abnormalities, qualified as interfering changes, such as severe hyperparathyroidism (iPTH> 1000 pg / mL), severe congestive heart failure (NYHA Class IV), acute myocardial infarction within the last 3 months, or active neoplasia in follow-up, severe liver disease, active infection (leukocyte changes), history of aluminum toxicity or scheduled surgery, pregnancy or lactation;
5. Patients who have a known hypersensitivity to any component of the formulation and to products derived from mammalian cells;
6. Prior therapies with erythropoietin for less than 3 months;
7. Realization transfusion for less than 3 months;
8. Any situation at the discretion of the Principal Investigator interfere with study data.