The purpose of this study is to evaluate the safety, pharmacokinetics (PK), and minimum pharmacologically active dose of peginesatide in Healthy Volunteers.

This was a Phase 1, double-blind, placebo-controlled trial of peginesatide, an erythropoiesis stimulating agent, with approximately 7 treatment cohorts and 7 healthy volunteer participants per cohort. In each cohort of 7 participants, a ratio of 5:2 participants was randomly assigned to receive a single dose of peginesatide or placebo, respectively, administered as an intravenous infusion. Planned peginesatide dose levels were to escalate by cohort. The study was conducted at a single clinical center.

Main eligibility criteria:

• Participant is a healthy male, age ≥ 18 years and ≤ 40 years, with body mass index (BMI) ≥ 18 and ≤ 30 kilograms per squared meter (kg/m^2), and weight ≥ 50 and ≤ 95 kilograms (kg)
• Participant has hemoglobin of ≤ 16 grams per deciliter (g/dL) at the time of study entry
• Participant has normal iron stores