The aim of this study was to compare and evaluate efficacy and safety of subcutaneous CKD-11101 versus Darbepoetin alfa in patients who have renal anemia not on dialysis.

This was designed as randomized, double-blind, multi-center, Phase 3 clinical study to evaluate the efficacy and safety of subcutaneous CKD-11101 versus Darbepoetin Alfa in patients who had stage 3, stage 4, and stage 5 chronic renal failure not on hemodialysis or peritoneal dialysis.

The selection criteria will be evaluated in patients who are receiving anemia correction among patients with 19 years of age or older and who had anemia in chronic renal failure of stage 3 or above.

Subjects who are identified to meet all inclusion criteria will be randomized to test group and control group at 1:1 ratio and go through 24-week correction period and efficacy evaluation period. During correction period and efficacy evaluation period, subjects will visit the clinical study center every 2 weeks to receive processes designated for each visit and be administered investigational product from the investigator in charge of drug administration.

In the safety evaluation period, all subjects will be administered test drug for 28weeks.

• Inclusion Criteria

  1. Patients with 19 years of age or older

  2. Patients with chronic renal failure of stage 3 or above who are not on dialysis

  3. Patients with the Hb levels of 8 to 10g/dl measured at screening

  4. Patients with enough body iron stores who meet the following item:

     -Serum ferritin ≥ 100ng/ml or Transferrin saturation ≥ 20%

  5. Patients who have provided written consent to participate in the clinical trial voluntarily

• Exclusion Criteria

  1. Patients who are expected to need dialysis within a year or patients with rapidly progressive chronic renal failure
  2. Patients who have received drug treatment such as erythropoiesis stimulating agent for the purpose of correcting anemia within 12 weeks prior to screening
  3. Patients who have received red blood cell transfusion within 12 weeks prior to screening
  4. Patients with uncontrolled hypertension
  5. Patients who had hypersensitivity to erythropoietin agents
  6. Patients who had known hypersensitivity to mammalian cell-derived products or additives
  7. Patients with history of severe cardiovascular diseases
  8. Patients whose anemia is not caused by chronic renal failure or may affect anemia correction including the following conditions:
  9. Patients whose AST/ALT test results performed at screening exceeds twice of normal upper limit
  10. Patients who have experience of positive result in anti-erythropoietin antibody in previous treatment with erythropoiesis stimulating agent