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Amgen Announces Erenumab (AMG 334) Significantly Reduces Patients' Monthly Migraine Days In Phase 2 Study For The Prevention Of Chronic Migraine
"Migraine is the sixth leading cause of disability worldwide. Three to seven million Americans spend more than half of each month living with the debilitating symptoms of chronic migraine," said Sean E. Harper, M.D., executive vice president of Research and Development at
At baseline, patients enrolled in this study were experiencing approximately 18 migraine days per month. Patients were randomized to receive either placebo, or one of two erenumab doses — 70 mg or 140 mg — subcutaneously, once monthly. Patients experienced a 6.6-day reduction from baseline in monthly migraine days in each of the erenumab treatment arms as compared to a 4.2-day reduction in the placebo arm, a statistically significant reduction in each erenumab treatment arm.
The safety profile of erenumab was similar to placebo across both treatment arms. No adverse event was reported in greater than five percent of patients treated with erenumab; the most common adverse events were injection site pain, upper respiratory tract infection and nausea.
Additional analyses of these data are ongoing and will be submitted to a future medical meeting and for publication.
About the 20120295 Study
The 20120295 study is a global Phase 2, randomized, 12-week, double-blind, placebo-controlled study evaluating the safety and efficacy of erenumab in chronic migraine prevention. In the study, 667 patients were randomized to receive once-monthly subcutaneous placebo or erenumab (70 mg or 140 mg) in a 3:2:2 ratio, respectively. The primary endpoint was change in monthly migraine days from baseline to the last four weeks of the 12-week treatment phase in patients with chronic migraine (the number of migraine days between weeks 9 and 12). Secondary study endpoints included reduction of at least 50 percent from baseline in monthly migraine days, change from baseline in monthly acute migraine-specific medication days and change from baseline in cumulative monthly headache hours.
Erenumab is a fully human monoclonal antibody under investigation for the prevention of migraine. Erenumab specifically targets the Calcitonin-Gene-Related-Peptide (CGRP) receptor, which is believed to transmit signals that can cause incapacitating pain. Erenumab is currently under evaluation in several large global, randomized, double-blind, placebo-controlled trials to assess its safety and efficacy in migraine prevention.
Migraine involves incapacitating head pain and physical impairment, frequently accompanied by nausea, vomiting, and aura-related sound or other sensory disturbances.1 Migraine is associated with personal and societal burdens of pain, disability, and financial cost, and it remains under-recognized and under-treated with more than 40 percent of people going undiagnosed.2,3 In the U.S., between three and seven million Americans suffer from chronic migraine, with at least 15 headache days per month with at least eight days being migraine.4
In August 2015,
Amgen is committed to unlocking the potential of biology for patients suffering from serious illnesses by discovering, developing, manufacturing and delivering innovative human therapeutics. This approach begins by using tools like advanced human genetics to unravel the complexities of disease and understand the fundamentals of human biology.
Amgen focuses on areas of high unmet medical need and leverages its expertise to strive for solutions that improve health outcomes and dramatically improve people's lives. A biotechnology pioneer since 1980, Amgen has grown to be one of the world's leading independent biotechnology companies, has reached millions of patients around the world and is developing a pipeline of medicines with breakaway potential.
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3 Diamond S et al. Patterns of Diagnosis and Acute and Preventive Treatment for Migraine in
4 Vimont C. "Chronic Migraine Impacts Entire Family." Practical Pain Management. http://www.practicalpainmanagement.com/patient/conditions/headache/chronic-migraine-impacts-entire-family. Updated
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