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THOUSAND OAKS, Calif., May 13, 2014 /PRNewswire/ — Amgen (NASDAQ:AMGN) today announced the publication of data from the Phase 3 LAPLACE-2 (LDL-C Assessment with PCSK9 MonoclonaL Antibody Inhibition Combined with Statin ThErapy-2) study in the Journal of the American Medical Association (JAMA). Results from the 12-week study, which evaluated 1,896 patients with high cholesterol, showed treatment with subcutaneous evolocumab (140 mg every two weeks or 420 mg monthly) in combination with different daily doses of statin therapy significantly reduced mean low-density lipoprotein cholesterol (LDL-C) regardless of statin dose. These findings were initially presented at the American College of Cardiology's 63rd Annual Scientific Session (ACC.14) in March 2014.
Evolocumab, an investigational fully human monoclonal antibody that inhibits proprotein convertase subtilisin/kexin type 9 (PCSK9), a protein that reduces the liver's ability to remove LDL-C from the blood1, reduced mean LDL-C by 55-76 percent from baseline compared to placebo and 38-47 percent from baseline compared to ezetimibe (p<0.001). no="" adverse="" events="" (aes)="" occurred="" in="">0.001).>> 2 percent of the evolocumab combined group. The most common AEs in the evolocumab combined group were back pain, arthralgia, headache, muscle spasms and pain in extremity.
"Elevated LDL cholesterol is recognized as a major risk factor for cardiovascular disease, and although statins are effective in reducing LDL cholesterol levels, many patients may need additional LDL cholesterol lowering," said lead investigator Jennifer G. Robinson, M.D., M.P.H., director of the Prevention Intervention Center, professor of the Departments of Epidemiology & Medicine, College of Public Health at the University of Iowa. "This is the first study to demonstrate that the addition of evolocumab results in similar percent reductions in LDL cholesterol and achieved LDL cholesterol levels regardless of stable baseline statin type, dose or intensity, across three commonly prescribed statins and a broad range of doses."
There are approximately 300 million cases of dyslipidemia in the U.S., Japan and Western Europe.2 According to the Centers for Disease Control and Prevention, more than 71 million American adults have high LDL-C3, or "bad" cholesterol, and elevated LDL-C is recognized as a major risk factor for cardiovascular disease.4,5
"Results from the Phase 3 LAPLACE-2 study show that evolocumab provided cholesterol-lowering regardless of statin therapy and we look forward to bringing this new treatment option to patients who are taking statins and still need additional treatment options to lower their cholesterol levels," said Sean E. Harper, M.D., executive vice president of Research and Development at Amgen. "These results in combination with data from other studies in our clinical trial program form the basis of our global filing plan for evolocumab and we are working closely with regulatory authorities to provide this treatment to patients with high cholesterol."
LAPLACE-2 (LDL-C Assessment with PCSK9 MonoclonaL Antibody Inhibition Combined with Statin ThErapy-2) is a Phase 3 randomized, multicenter, double-blind, placebo- and ezetimibe-controlled study designed to evaluate safety, tolerability and efficacy of evolocumab in 1,896 patients with primary hypercholesterolemia and mixed dyslipidemia (LDL-C ≥80 mg/dL) when added to statin therapy. Patients were randomized to one of 24 treatment groups in a two-step randomization. Eligible patients were initially randomized to one of five open label background statin treatments: atorvastatin 10 mg, atorvastatin 80 mg, rosuvastatin 5 mg, rosuvastatin 40 mg or simvastatin 40 mg daily. Patients randomized to atorvastatin were then randomized to one of six treatment groups: evolocumab every two weeks and oral placebo, evolocumab every month and oral placebo, subcutaneous placebo every two weeks and oral placebo, subcutaneous placebo every month and oral placebo, subcutaneous placebo every two weeks and ezetimibe 10 mg, or subcutaneous placebo every month and ezetimibe 10 mg. Patients randomized to rosuvastatin or simvastatin were then randomized to one of four treatment groups: evolocumab every two weeks, evolocumab every month, subcutaneous placebo every two weeks, or subcutaneous placebo every month.
The co-primary endpoints were the mean percent change from baseline in LDL-C at weeks 10 and 12 and the percent change in LDL-C reduction at week 12. Co-secondary efficacy endpoints included means at weeks 10 and 12 and at week 12 for the following: LDL-C <70 mg/dl;="" absolute="" change="" from="" baseline="" in="" ldl-c;="" and="" the="" percentage="" change="" from="" baseline="" in="" non-high-density="" lipoprotein="" cholesterol="" (non-hdl-c),="" apolipoprotein="" b="" (apob),="" total="" cholesterol="" (tc)/hdl-c="" ratio,="" apob/apolipoprotein="" a1="" (apoa1)="" ratio,="" lipoprotein(a),="" triglycerides,="" hdl-c="" and="" very="" low-density="" lipoprotein="" cholesterol="">70>
Evolocumab is a fully human monoclonal antibody that inhibits proprotein convertase subtilisin/kexin type 9 (PCSK9).1 PCSK9 is a protein that targets LDL receptors for degradation and thereby reduces the liver's ability to remove LDL-C, or "bad" cholesterol, from the blood.6 Evolocumab, being developed by Amgen scientists, is designed to bind to PCSK9 and inhibit PCSK9 from binding to LDL receptors on the liver surface. In the absence of PCSK9, there are more LDL receptors on the surface of the liver to remove LDL-C from the blood.1
PROFICIO, which stands for the Program to Reduce LDL-C and Cardiovascular Outcomes Following Inhibition of PCSK9 In Different POpulations, is a large and comprehensive clinical trial program evaluating evolocumab in 20 clinical trials, with a combined planned enrollment of nearly 30,000 patients.
The Phase 3 program includes 14 trials to evaluate evolocumab administered every two weeks and monthly in multiple patient populations, including in combination with statins in patients with hyperlipidemia (LAPLACE-2 and YUKAWA-2); in patients with hyperlipidemia who cannot tolerate statins (GAUSS-2 and GAUSS-3); as a stand-alone treatment in patients with hyperlipidemia (MENDEL-2); in patients whose elevated cholesterol is caused by genetic disorders called heterozygous (RUTHERFORD-2 and TAUSSIG) and homozygous (TESLA and TAUSSIG) familial hypercholesterolemia; as well as the administration of evolocumab (THOMAS-1 and THOMAS-2).
Five studies in the evolocumab Phase 3 program will provide long-term safety and efficacy data. These include FOURIER (Further Cardiovascular OUtcomes Research with PCSK9 Inhibition in Subjects with Elevated Risk), which will assess whether treatment with evolocumab in combination with statin therapy compared to placebo and statin therapy reduces recurrent cardiovascular events in approximately 22,500 patients with cardiovascular disease; DESCARTES (Durable Effect of PCSK9 Antibody CompARed wiTh PlacEbo Study) in patients with hyperlipidemia at risk for cardiovascular disease; OSLER-2 (Open Label Study of Long TERm Evaluation Against LDL-C Trial-2) in patients with high cholesterol who completed any of the Phase 3 studies; GLAGOV (GLobal Assessment of Plaque ReGression with a PCSK9 AntibOdy as Measured by IntraVascular Ultrasound), which will determine the effect of evolocumab on coronary atherosclerosis in approximately 950 patients undergoing cardiac catheterization; and TAUSSIG (Trial Assessing Long Term USe of PCSK9 Inhibition in Subjects with Genetic LDL Disorders), which will assess the long-term safety and efficacy of evolocumab on LDL-C in patients with severe familial hypercholesterolemia.
Amgen is dedicated to addressing important scientific questions in order to advance care and improve the lives of patients with cardiovascular disease. Through its own research and development efforts and innovative partnerships, Amgen has built a robust cardiology pipeline consisting of several 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 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.
For more information, visit www.amgen.com and follow us on www.twitter.com/amgen.
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