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|Landmark Outcomes Study Shows That Repatha® (Evolocumab) Decreases LDL-C To Unprecedented Low Levels And Reduces Risk Of Cardiovascular Events With No New Safety Issues|
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The study was statistically powered around the hard major adverse cardiovascular event (MACE) composite endpoint of first heart attack, stroke or cardiovascular death (key secondary composite endpoint) and found that adding Repatha to optimized statin therapy resulted in a statistically significant 20 percent (p<0.001) reduction in these events. The robust benefit in this objective measure started as early as six months and continued to accrue through the median 2.2 years of the study. In fact, the magnitude of the risk reduction in the hard MACE composite endpoint grew over time, from 16 percent in the first year to 25 percent beyond the first year.
The study also found a statistically significant 15 percent reduction (p<0.001) in the risk of the extended MACE composite (primary) endpoint, which included hospitalization for unstable angina, coronary revascularization, heart attack, stroke or cardiovascular death.
Patients on Repatha experienced a reduction in the risk of heart attack (27 percent, nominal p<0.001), stroke (21 percent, nominal p=0.01) and coronary revascularization (22 percent, nominal p<0.001). Consistent with recent trials of more intensive LDL lowering, there was no observed effect on cardiovascular mortality.1-5 Similarly, there was no observed effect on hospitalization for unstable angina. In an exploratory analysis, the relative risk reduction for fatal and non-fatal heart attack or stroke was 19 percent in the first year (p=0.003) and 33 percent beyond the first year (p<0.00001).
"We now show for the first time in a dedicated outcomes study that decreasing LDL cholesterol with PCSK9 inhibition results in clinically meaningful cardiovascular benefit," said
When added to statin therapy, Repatha reduced LDL-C from a median of 92 to 30 mg/dL, a reduction of 59 percent at week 48, which was sustained throughout the trial. At 48 weeks, the LDL-C was reduced to at least 25 mg/dL in 42 percent of patients treated with Repatha, as compared with <0.1 percent in the placebo group (p<0.001). Additionally, treatment with Repatha had favorable effects on other lipid parameters.
"This is a game changer for high-risk patients. Even though these patients were optimally treated with the latest therapies, they were still at high risk for an additional cardiac event. It's remarkable to see such a large impact in reducing cardiac events given that this patient population was only on Repatha for about two years," said
Repatha was developed from the breakthrough work of
No new safety concerns were identified in this large clinical trial with roughly 60,000 patient-years of follow-up; this included the assessment of patients who achieved very low levels of LDL-C. In particular, there were no notable differences seen between treatment arms in the overall rate of adverse events, serious adverse events or adverse events leading to study drug discontinuation. Likewise, rates of adjudicated new onset diabetes (8.1 percent Repatha; 7.7 percent placebo), muscle-related side effects (5.0 percent Repatha; 4.8 percent placebo), cataract (1.7 percent Repatha; 1.8 percent placebo), neurocognitive adverse events (1.6 percent Repatha; 1.5 percent placebo) and allergic reactions (3.1 percent Repatha; 2.9 percent placebo) were similar between the two arms. Injection site reactions were more common with Repatha than with placebo (2.1 percent Repatha; 1.6 percent placebo). In the Repatha arm, post-baseline new binding antibodies were detected in 43 patients (0.3 percent) and neutralizing antibodies in none. Detailed results from the Repatha cognitive function study (EBBINGHAUS) will be presented in a separate Late-Breaking Clinical Trial Session on Saturday, March 18 at 9 a.m. ET.
"These robust data, from one of the largest outcomes trials ever conducted, validate that the net prices of Repatha in the market today are value-based. Now that Repatha has proven a meaningful reduction in cardiovascular events, we expect payers to remove onerous barriers and help appropriate patients get access to Repatha," said
Webcast Information for Late-Breaking Clinical Trial Presentations
Amgen Webcast Investor Meeting
Live audio of the conference call will be broadcast over the internet simultaneously and will be available to members of the news media, investors and the general public. The webcast, as with other selected presentations regarding developments in
Repatha Cardiovascular Outcomes (FOURIER) Study Design
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 1,200 study locations around the world were randomized to receive Repatha subcutaneous 140 mg every two weeks or 420 mg monthly plus optimized statin dose; or placebo subcutaneous every two weeks or monthly plus effective statin dose. Effective 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 approved in more than 40 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.
U.S. Repatha Indication:
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 U.S. Safety Information
Contraindication: Repatha® is contraindicated in patients with a history of a serious hypersensitivity reaction to Repatha®.
Allergic reactions: 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.
Adverse reactions: 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:
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%).
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 1,988 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%).
Homozygous Familial Hypercholesterolemia (HoFH): 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%).
Immunogenicity: Repatha® is a human monoclonal antibody. As with all therapeutic proteins, there is a potential for immunogenicity with Repatha®.
Please contact Amgen Medinfo at 800-77-AMGEN (800-772-6436) or 844-REPATHA (844-737-2842) regarding Repatha® availability or find more information, including full Prescribing Information at www.amgen.com and www.Repatha.com.
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The scientific information discussed in this news release relating to new indications is preliminary and investigative and is not part of the labeling approved by the
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