Study of ACE-536 in Healthy Postmenopausal Women

Key Inclusion Criteria: * Postmenopausal women * Body Mass Index (BMI) of 20 - 32 kg/m2. Key Exclusion Criteria: * History of hypertension * Subject has received any erythropoiesis stimulating agents (e.g., Epogen, Procrit, Aranesp, etc.) within 6 months prior to Day 1 * History of clinically significant cardiac, endocrine, hematologic, hepatic, immune, metabolic, urologic, pulmonary, neurologic, dermatologic, psychiatric, renal, and/or other disease * Surgery within 3 months (other than minor cosmetic surgery or minor dental procedures) * Subject has received treatment with another investigational drug, or approved therapy for investigational use within 1 month prior to Day 1, or if the half-life of the previous product is known, within 5 times the half-life prior to Day 1, whichever is longer