Amgen in Discussions with FDA to Update U.S. Prescribing Information for ESAs.

Revised ESA Labeling to be Based on New Data from PREPARE and GOG Studies

THOUSAND OAKS, Calif. -- Amgen Inc. (NASDAQ:AMGN) today announced the company is in discussions with the U.S. Food and Drug Administration (FDA) with the goal of updating safety information in all erythropoiesis-stimulating agents (ESAs) labeling based on safety data from the recently announced PREPARE interim study results in neoadjuvant breast cancer and the recently published follow up data from the Gynecologic Oncology Group (GOG) study in cervical cancer. While Amgen's interactions with the FDA are ongoing and exact language for the updated labeling is not final, the company is committed to providing timely and appropriate communications to patients and physicians.

Amgen and the FDA are discussing the label changes under the regulatory mechanism known as a "changes being effected" (CBE) process. Additionally, Amgen has been advised there will be an Oncologic Drugs Advisory Committee (ODAC) meeting in the first quarter of 2008 as part of the ongoing pharmacovigilance review of ESA therapies. Decisions around the precise timing of this ODAC meeting will not be finalized until publication by the FDA in the Federal Register.

"The PREPARE and GOG studies were off-label, high-hemoglobin target studies that contain important information relevant to specific patient populations receiving ESAs," said Roger M. Perlmutter, M.D., Ph.D., executive vice president of Research and Development at Amgen. "As new information, including additional study results, becomes available, Amgen will communicate the data and, where appropriate, work with the FDA to update our product labels."

Additional information about the PREPARE and GOG studies is available at www.amgen.com.

About Aranesp

Aranesp was approved by the FDA in September 2001 for the treatment of anemia associated with chronic renal failure (CRF) for patients on dialysis and patients not on dialysis. In July 2002, the FDA approved weekly dosing of Aranesp for the treatment of anemia caused by concomitantly administered chemotherapy in patients with nonmyeloid malignancies and in March 2006, the FDA approved every-three-week dosing in these patients.

Important Aranesp Safety Information

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Aranesp is contraindicated in patients with uncontrolled hypertension.

About Amgen

Amgen discovers, develops and delivers innovative human therapeutics. A biotechnology pioneer since 1980, Amgen was one of the first companies to realize the new science's promise by bringing safe and effective medicines from lab, to manufacturing plant, to patient. Amgen therapeutics have changed the practice of medicine, helping millions of people around the world in the fight against cancer, kidney disease, rheumatoid arthritis, and other serious illnesses. With a deep and broad pipeline of potential new medicines, Amgen remains committed to advancing science to dramatically improve people's lives. To learn more about our pioneering science and our vital medicines, visit www.amgen.com.

Forward-Looking Statements

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