Safety & Efficacy of Peginesatide for Maintenance Treatment of Anemia in Participants With Chronic Kidney Disease on Hemodialysis (EMERALD 1)

Affymax

Status and phase: Completed; Phase 3

Conditions: Anemia; Chronic Kidney Disease; Chronic Renal Failure

Treatments: Drug: Epoetin Alfa; Drug: peginesatide

Study type: Interventional

Funder types: Industry

Identifiers

NCT00597753

AFX01-12

Details and patient eligibility

About

The purpose of the study was to evaluate the safety and efficacy of peginesatide in the maintenance treatment of anemia in participants on dialysis.

Full description

Anemia associated with chronic kidney disease is due to several factors, primarily the inability of the diseased kidneys to produce adequate amounts of endogenous erythropoietin. Ancillary factors include the shortened lifespan of red blood cells, iron and other nutritional deficiencies, infection, and inflammation. The presence and severity of anemia are related to the duration and extent of kidney failure. Anemia is associated with increased mortality, increased likelihood of hospitalization, reduced cognitive function, and increased left ventricular hypertrophy and heart failure.

Erythropoiesis stimulating agents (ESAs) have been established as a treatment for anemia in chronic renal failure subjects, and have improved the management of anemia over alternatives such as transfusion. Peginesatide is a parenteral formulation developed for the treatment of anemia in patients with chronic kidney disease. Peginesatide binds to and activates the human erythropoietin receptor, and stimulates erythropoiesis in human red cell precursors in a manner similar to other known erythropoiesis-stimulating agents.

Eligible participants were randomized in a 2:1 ratio to peginesatide administered once every 4 weeks or to continued treatment with epoetin alfa administered 1-3 times each week, respectively. Total commitment time for this study was 4 weeks of screening followed by a minimum of 52 weeks of study treatment.

To evaluate the cardiovascular safety of peginesatide, a cardiovascular composite safety endpoint (CSE) was defined for use in prospectively planned analyses which combined cardiovascular safety data from the four Phase 3 peginesatide studies (NCT00598273, NCT00597753, NCT00598442, and NCT00597584). The CSE consisted of six events: death, stroke, myocardial infarction, and serious adverse events of congestive heart failure, unstable angina, and arrhythmia. An independent Event Review Committee (ERC) was used to provide blinded adjudication of potential CSE events.

Enrollment: 803 patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion and exclusion criteria

Inclusion Criteria

1. Participants with chronic renal failure on hemodialysis for ≥ 3 months prior to randomization.
2. On intravenous epoetin alfa maintenance therapy continuously prescribed for a minimum of 8 weeks prior to randomization.
3. Four consecutive hemoglobin values with a mean ≥ 10.0 and ≤ 12.0 g/dL during the screening period

Exclusion Criteria

1. Females who are pregnant or breast-feeding.
2. Known intolerance to any erythropoiesis stimulating agent (ESA) or pegylated molecule or to all parenteral iron supplementation products.
3. Known bleeding or coagulation disorder.
4. Known hematologic disease or cause of anemia other than renal disease
5. Poorly controlled hypertension
6. Evidence of active malignancy within one year prior to randomization.
7. Temporary (untunneled) dialysis access catheter.
8. A scheduled kidney transplant
9. A scheduled surgery that may be expected to lead to significant blood loss.

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

---

803 participants in 2 patient groups

Peginesatide

Experimental group

Treatment:

Drug: peginesatide

Epoetin alfa

Active Comparator group

Treatment:

Drug: Epoetin Alfa