THOUSAND OAKS, Calif., Oct. 26, 2018 /PRNewswire/ -- Amgen (NASDAQ:AMGN) today announced a new Repatha cardiovascular outcomes study (FOURIER) analysis evaluating the effects of Repatha® (evolocumab) in patients with established cardiovascular disease by kidney function. In line with previous FOURIER subgroup analyses, these results further demonstrate Repatha's efficacy in reducing not only low-density lipoprotein cholesterol (LDL-C) levels, but also the relative risk for major cardiovascular events such as heart attack and stroke, in high-risk patients including those with mild-to-moderate chronic kidney disease (CKD).1-4 In these patients (N=4,443), absolute reductions tended to be greater in the risk for the composite secondary endpoint which included cardiovascular death, heart attack or stroke. Adverse events were similar across patients regardless of CKD stage and consistent with the Repatha known safety profile. The results were presented at the American Society of Nephrology's (ASN) annual Kidney Week in San Diego.
"Patients with chronic kidney disease are considered a high-risk population due to increased rates of cardiovascular events associated with impaired kidney function," said Robert P. Giugliano, M.D., S.M., Brigham and Women's Hospital, Harvard Medical School and lead investigator. "The results of this analysis demonstrate evolocumab is a safe and effective approach for the reduction of LDL-C and cardiovascular risk in patients with established cardiovascular disease and mild-to-moderate kidney impairment on background lipid-lowering therapies, who require additional treatment options."
Analysis of the FOURIER subgroup of patients with CKD showed treatment with Repatha resulted in consistent and robust reductions in LDL-C levels across all patients independent of kidney function (58.7 percent LDL-C reduction in patients with stage 3 CKD versus 58.2 percent LDL-C reduction in those with preserved kidney function).5
Treatment with Repatha was also associated with significant reductions in the risk for the composite of cardiovascular death, heart attack or stroke across patient subgroups regardless of CKD stage. Patients with more advanced CKD tended to have greater reductions in the absolute risk for cardiovascular events (2.5 percent reduction in absolute risk in patients with ≥ stage 3 CKD compared to 1.7 percent absolute risk reduction in patients with preserved kidney function at year three).5
"This subanalysis is the first to report the effects of a PCSK9 inhibitor in patients with CKD and established cardiovascular disease. These results continue to reinforce Repatha's efficacy and safety across a wide range of high-risk patient populations," said David M. Reese, M.D., executive vice president of Research and Development at Amgen. "It is vitally important for patients with CKD to have additional treatment options to help manage their LDL-C levels and heightened risk of cardiovascular events."
Early stage CKD, which is often associated with comorbidities such as diabetes, high blood pressure and heart disease, affects an estimated 10 percent of Americans.6,7 CKD is an independent risk factor for the development of cardiovascular disease, with the frequency and risk for adverse outcomes increasing with worsening kidney function.7-9
Repatha Cardiovascular Outcomes (FOURIER) Study Design FOURIER (Further Cardiovascular OUtcomes Research with PCSK9 Inhibition in subjects with Elevated Risk), a multinational Phase 3 randomized, double-blind, placebo-controlled trial, is designed to evaluate whether treatment with Repatha in combination with statin therapy compared to placebo plus statin therapy reduces cardiovascular events. The primary endpoint is the time to cardiovascular death, myocardial infarction, stroke, hospitalization for unstable angina, or coronary revascularization. The key secondary endpoint is the time to cardiovascular death, myocardial infarction or stroke.
Eligible patients with high cholesterol (LDL-C ≥70 mg/dL or non-high-density lipoprotein cholesterol [non-HDL-C] ≥100 mg/dL) and clinically evident atherosclerotic cardiovascular disease at more than 1,300 study locations around the world were randomized to receive Repatha subcutaneous 140 mg every two weeks or 420 mg monthly plus effective statin dose; or placebo subcutaneous every two weeks or monthly plus effective statin dose. Optimized statin therapy was defined as at least atorvastatin 20 mg or equivalent daily with a recommendation for at least atorvastatin 40 mg or equivalent daily where approved. The study was event-driven and continued until at least 1,630 patients experienced a key secondary endpoint.
About Repatha® (evolocumab) Repatha is a human monoclonal antibody that inhibits proprotein convertase subtilisin/kexin type 9 (PCSK9). 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.10
Repatha is approved in more than 60 countries, including the U.S., Japan, Canada and in all 28 countries that are members of the European Union. Applications in other countries are pending.
Important U.S. Product Information
Repatha is a PCSK9 (proprotein convertase subtilisin kexin type 9) inhibitor antibody indicated:
to reduce the risk of myocardial infarction, stroke, and coronary revascularization in adults with established cardiovascular disease.
as an adjunct to diet, alone or in combination with other lipid-lowering therapies (e.g., statins, ezetimibe), for treatment of adults with primary hyperlipidemia (including heterozygous familial hypercholesterolemia [HeFH]) to reduce low-density lipoprotein cholesterol (LDL-C).
as an adjunct to diet and other LDL-lowering therapies (e.g., statins, ezetimibe, LDL apheresis) in patients with homozygous familial hypercholesterolemia (HoFH) who require additional lowering of LDLC.
The safety and effectiveness of Repatha have not been established in pediatric patients with HoFH who are younger than 13 years old or in pediatric patients with primary hyperlipidemia or HeFH.
Important U.S. Safety Information
Contraindication: Repatha is contraindicated in patients with a history of a serious hypersensitivity reaction to Repatha. Serious hypersensitivity reactions including angioedema have occurred in patients treated with Repatha.
Allergic reactions: Hypersensitivity reactions (e.g. angioedema, 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.
Adverse reactions: The most common adverse reactions (>5% of patients treated with Repatha and occurring more frequently than placebo) were: nasopharyngitis, upper respiratory tract infection, influenza, back pain, and injection site reactions.
From a pool of the 52-week trial and seven 12-week trials: Local injection site reactions 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.
Allergic reactions occurred in 5.1% and 4.7% 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%).
The most common adverse reactions in the Cardiovascular Outcomes Trial (>5% of patients treated with Repatha and occurring more frequently than placebo) were: diabetes mellitus (8.8% Repatha, 8.2% placebo), nasopharyngitis (7.8% Repatha, 7.4% placebo), and upper respiratory tract infection (5.1% Repatha, 4.8% placebo).
Among the 16,676 patients without diabetes mellitus at baseline, the incidence of new-onset diabetes mellitus during the trial was 8.1% in patients assigned to Repatha compared with 7.7% in those assigned to placebo.
Homozygous Familial Hypercholesterolemia (HoFH): The adverse reactions that occurred in at least two patients treated with Repatha and more frequently than placebo were: upper respiratory tract infection, influenza, gastroenteritis, and nasopharyngitis.
Immunogenicity: Repatha is a human monoclonal antibody. As with all therapeutic proteins, there is a potential for immunogenicity with Repatha.
About Amgen in the Cardiovascular Therapeutic Area 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.11 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.
About Amgen 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 the world's largest independent biotechnology company, has reached millions of patients around the world and is developing a pipeline of medicines with breakaway potential.
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CONTACT: Amgen, Thousand Oaks Kristen Davis, 805-447-3008 (Media) Kristen Neese, 805-313-8267 (Media) Arvind Sood, 805-447-1060 (Investors)
Bonaca, M.P., et al. Low-Density Lipoprotein Cholesterol Lowering With Evolocumab and Outcomes in Patients With Peripheral Artery Disease: Insights From the FOURIER Trial (Further Cardiovascular Outcomes Research With PCSK9 Inhibition in Subjects With Elevated Risk). Circulation137, 338-350 (2018).
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