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Would Allow 420 mg Monthly Dose to be Administered as a Single Injection
THOUSAND OAKS, Calif. (Sept. 11, 2015) – Amgen (NASDAQ:AMGN) today announced the submission of an application to the U.S. Food and Drug Administration (FDA) seeking approval of a single-dosing option for the monthly administration of RepathaTM (evolocumab) Injection, allowing the 420 mg monthly dose to be administered as a single injection. Approved by the FDA on Aug. 27, 2015, Repatha is a human monoclonal antibody that inhibits proprotein convertase subtilisin/kexin type 9 (PCSK9). PCSK9 is a protein that reduces the liver's ability to remove low-density lipoprotein cholesterol (LDL-C), or "bad" cholesterol, from the blood.1
Repatha is approved as an adjunct to diet and maximally tolerated statins in patients with heterozygous familial hypercholesterolemia (HeFH) or clinical atherosclerotic cardiovascular disease (ASCVD), who require additional lowering of LDL-C; and as an adjunct to diet and other LDL-lowering therapies for the treatment of patients with homozygous familial hypercholesterolemia (HoFH), who require additional lowering of LDL-C. The effect of Repatha on cardiovascular morbidity and mortality has not been determined.
“We are very excited about the recent approval of Repatha in the U.S. as a new treatment option for patients who are in need of lowering their LDL cholesterol,” said Sean E. Harper, M.D., executive vice president of Research and Development at Amgen. “In addition to the SureClick® autoinjector, we are developing this monthly single injection to provide patients with another option to administer Repatha every month. Patients who are in need of lowering their cholesterol levels are often on more than one medication and some may prefer a single-dose option for receiving Repatha once monthly.”
Repatha is available as a single-use 140 mg/mL prefilled SureClick autoinjector or prefilled syringe that patients can self-administer at the recommended dose for adults of 140 mg every two weeks or 420 mg once a month. For patients with HoFH, the recommended dose is 420 mg once a month.
About High Cholesterol
Elevated low-density lipoprotein cholesterol (LDL-C) is an abnormality of cholesterol and/or fats in the blood, and is recognized as a major risk factor for cardiovascular disease.2,3 In the U.S., there are approximately 11 million people with atherosclerotic cardiovascular disease (ASCVD) and/or familial hypercholesterolemia (FH), who have uncontrolled levels of LDL-C over 70 mg/dL, despite treatment with statins or other cholesterol-lowering therapies.4,5 Familial hypercholesterolemia is caused by genetic mutations that lead to high levels of LDL-C at an early age.6 It is estimated that one million people in the U.S. have FH (heterozygous and homozygous forms), yet less than one percent are diagnosed.7
About RepathaTM (evolocumab)
RepathaTM (evolocumab) is a human monoclonal antibody that inhibits proprotein convertase subtilisin/kexin type 9 (PCSK9).1 Repatha binds to PCSK9 and inhibits circulating PCSK9 from binding to the low-density lipoprotein (LDL) receptor (LDLR), preventing PCSK9-mediated LDLR degradation and permitting LDLR to recycle back to the liver cell surface. By inhibiting the binding of PCSK9 to LDLR, Repatha increases the number of LDLRs available to clear LDL from the blood, thereby lowering LDL-C levels.8
GLAGOV, the intravascular ultrasound study, is underway to determine the effect of Repatha on coronary atherosclerosis in approximately 950 patients undergoing cardiac catheterization to test the hypothesis of robust LDL-C reduction leading to a reduction or a change in the build-up of plaque in the arteries. Results from the GLAGOV study are expected in 2016.
The FOURIER outcomes trial is designed to evaluate whether treatment with Repatha in combination with statin therapy compared to placebo plus statin therapy reduces the risk of recurrent cardiovascular events in patients with high cholesterol and clinically evident cardiovascular disease and completed patient enrollment in June 2015. Results from the approximately 27,500-patient FOURIER study are expected no later than 2017 (event-driven).
Important U.S. Product Information
Repatha is indicated as an adjunct to diet and:
The effect of Repatha on cardiovascular morbidity and mortality has not been determined.
The safety and effectiveness of Repatha have not been established in pediatric patients with HoFH who are younger than 13 years old.
The safety and effectiveness of Repatha have not been established in pediatric patients with primary hyperlipidemia or HeFH.
Important Safety Information
Repatha™ is contraindicated in patients with a history of a serious hypersensitivity reaction to Repatha. Hypersensitivity reactions (e.g. rash, urticaria) have been reported in patients treated with Repatha, including some that led to discontinuation of therapy. If signs or symptoms of serious allergic reactions occur, discontinue treatment with Repatha, treat according to the standard of care, and monitor until signs and symptoms resolve.
The most common adverse reactions (>5% of Repatha-treated patients and more common than placebo) were: nasopharyngitis, upper respiratory tract infection, influenza, back pain, and injection site reactions.
In a 52-week trial, adverse reactions led to discontinuation of treatment in 2.2% of Repatha-treated patients and 1% of placebo-treated patients. The most common adverse reaction that led to Repatha treatment discontinuation and occurred at a rate greater than placebo was myalgia (0.3% versus 0% for Repatha and placebo, respectively).
Adverse reactions from a pool of the 52-week trial and seven 12-week trials, included:
Local injection site reactions that occurred in 3.2% and 3.0% of Repatha-treated and placebo-treated patients, respectively. The most common injection site reactions were erythema, pain, and bruising. The proportions of patients who discontinued treatment due to local injection site reactions in Repatha-treated patients and placebo-treated patients were 0.1% and 0%, respectively.
Allergic reactions occurred in 5.1% and 4.6% of Repatha-treated and placebo-treated patients, respectively. The most common allergic reactions were rash (1.0% versus 0.5% for Repatha and placebo, respectively), eczema (0.4% versus 0.2%), erythema (0.4% versus 0.2%), and urticaria (0.4% versus 0.1%).
Neurocognitive events were reported in less than or equal to 0.2% in Repatha-treated and placebo-treated patients.
In a pool of placebo- and active-controlled trials, as well as open-label extension studies that followed them, a total of 1,609 patients treated with Repatha had at least one LDL‑C value < 25 mg/dL. Changes to background lipid-altering therapy were not made in response to low LDL-C values, and Repatha dosing was not modified or interrupted on this basis. Although adverse consequences of very low LDL-C were not identified in these trials, the long-term effects of very low levels of LDL-C induced by Repatha are unknown.
Musculoskeletal adverse reactions were reported in 14.3% of Repatha-treated patients and 12.8% of placebo-treated patients. The most common adverse reactions that occurred at a rate greater than placebo were back pain (3.2% versus 2.9% for Repatha and placebo, respectively), arthralgia (2.3% versus 2.2%), and myalgia (2.0% versus 1.8%).
In 49 patients with homozygous familial hypercholesterolemia studied in a 12-week, double-blind, randomized, placebo-controlled trial, 33 patients received 420 mg of Repatha subcutaneously once monthly. The adverse reactions that occurred in at least 2 (6.1%) Repatha-treated patients and more frequently than in placebo-treated patients, included upper respiratory tract infection (9.1% versus 6.3%), influenza (9.1% versus 0%), gastroenteritis (6.1% versus 0%), and nasopharyngitis (6.1% versus 0%).
Repatha is a human monoclonal antibody. As with all therapeutic proteins, there is a potential for immunogenicity with Repatha.
About Amgen Cardiovascular
Building on more than three decades of experience in developing biotechnology medicines for patients with serious illnesses, Amgen is dedicated to addressing important scientific questions to advance care and improve the lives of patients with cardiovascular disease, the leading cause of morbidity and mortality worldwide.9 Amgen’s research into cardiovascular disease, and potential treatment options, is part of a growing competency at Amgen that utilizes human genetics to identify and validate certain drug targets. Through its own research and development efforts, as well as partnerships, Amgen is building a robust cardiovascular portfolio consisting of several approved and investigational molecules in an effort to address a number of today’s important unmet patient needs, such as high cholesterol and heart failure.
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 biologics manufacturing 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.
For more information, visit www.amgen.com and follow us on www.twitter.com/amgen.
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CONTACT: Amgen, Thousand Oaks
Kristen Davis, 805-447-3008 (media)
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