Amgen Presents New Repatha® (evolocumab) Data at AHA 2022

• Very low LDL-C Levels <20 mg/dL Were Well Tolerated With no new Safety Signals and Were Associated With a Reduced Risk of Cardiovascular Outcomes
• Data Reinforces Long-Term Efficacy and Consistent Safety Profile of Repatha Observed in FOURIER-OLE

THOUSAND OAKS, Calif., Nov. 7, 2022 /PRNewswire/ -- Amgen (NASDAQ:AMGN) today presented a new analysis from the Phase 3 FOURIER and FOURIER open label extension (OLE) studies of Repatha^® (evolocumab) in adults with atherosclerotic cardiovascular disease (ASCVD) during the Nov. 7 Late-Breaking Science Session of the American Heart Association (AHA) Scientific Sessions 2022 in Chicago, Illinois. These data demonstrated that achieving and sustaining a low-density lipoprotein cholesterol (LDL-C) level of <20 mg/dL was associated with improved cardiovascular (CV) outcomes, including the composite endpoint of cardiovascular death, myocardial infarction (MI) and stroke, with no evidence of an increased incidence of safety events for up to 8.6 years of follow-up.¹

“The current analysis further supports that achieving very low LDL-C long-term is not associated with any new safety signals and correlates with the reduction in cardiovascular events in patients with atherosclerotic cardiovascular disease,” said David M. Reese, M.D., executive vice president of Research and Development at Amgen. “Repatha continues to be at the forefront of PCSK9i research, with the longest safety and efficacy trial data among PCSK9i treatments for cardiovascular disease, providing crucial information for patients and doctors managing this disease.”

This pre-specified exploratory analysis examined the association between achievement of different LDL-C levels with the incidence of cardiovascular and safety outcomes for up to 8.6 years of follow up.¹ Between the parent FOURIER and FOURIER-OLE studies, over 3,500 patients (13%) achieved LDL-C levels of <20 mg/dL and over 10,000 (39%) achieved LDL-C levels of <40 mg/dL.¹ This analysis found that over the course of 77,470 patient-years of follow-up there was a monotonic relationship between lower LDL-C levels – down to very low LDL-C levels <20 mg/dL – and a lower risk of the efficacy endpoint from FOURIER of CV death, MI, stroke, coronary revascularization or hospital admission for unstable angina (see Figure 1).¹

A similar relationship was observed between achieved LDL-C levels and the risk of the key secondary efficacy endpoint from FOURIER of CV death, MI or stroke (P for trend<0.0001) (see Figure 2).¹ There were no significant associations between lower achieved LDL-C and the risk of serious adverse events, neurocognitive events, the development of new onset diabetes, cataract-related adverse events, new or progressive malignancy, the occurrence of hemorrhagic stroke, muscle-related events or non-cardiovascular death.¹

“Until now, there was a gap in the medical knowledge of the long-term efficacy and safety implications of a very low LDL-C level <20 mg/dL,” said Marc S. Sabatine, MD, Chair of the TIMI Study Group at Brigham and Women’s Hospital and senior investigator for this study. “These data fill that gap by demonstrating that a lower LDL-C level was associated with improved cardiovascular outcomes with a similar safety profile, down to very low LDL-C levels. Furthermore, these data substantiate the use of a PCSK9 inhibitor to reduce LDL-C below the threshold of 55 mg/dL for very high-risk ASCVD patients, as recommended in the recently published ACC 2022 Expert Consensus Decision Pathway on the Role of Nonstatin Therapies for LDL-C Lowering in the Management of ASCVD Risk.”

Prolonged LDL-C reduction with Repatha is also being studied in 12,301 patients without a prior heart attack or stroke in the ongoing VESALIUS-CV (NCT03872401) outcomes trial.

About Cardiovascular Disease (CVD)
CVD remains the leading cause of global mortality and a major contributor to disability and rising healthcare costs.^2,3 LDL-C is a key modifiable risk factor for the development of CVD, yet nearly half of post-MI patients fail to achieve guideline recommended LDL-C goals, including those taking high-intensity statins, leaving many patients at risk for another cardiovascular event.^4,5 Nearly one in five patients who have had a heart attack will have another cardiovascular event within one year, so it’s important that patients get their LDL-C to guideline recommended levels.⁶ The American College of Cardiology’s recent Expert Consensus Decision Pathway reinforces the criticality of lowering LDL-C in an update to the previous guidelines, including a lower threshold of 55 mg/dL for very high-risk ASCVD patients, and underscores the important role that PCSK9 inhibitor mAbs, like Repatha, play in helping to prevent cardiovascular events, like heart attack and stroke.⁷

Repatha^® FOURIER and FOURIER-OLE Study Design
FOURIER (20110118) was a multinational Phase 3 randomized, double-blind, placebo-controlled trial, designed to evaluate whether treatment with Repatha in combination with statin therapy compared to placebo plus statin therapy reduced cardiovascular events. The primary endpoint was the time to first occurrence of cardiovascular death, myocardial infarction, stroke, hospitalization for unstable angina, or coronary revascularization. The key secondary endpoint was the time to first occurrence of 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 ASCVD 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.

FOURIER-OLE were multicenter, open-label extension studies designed to assess the extended long-term safety of evolocumab in subjects who completed the FOURIER study. The FOURIER-OLE was composed of studies 20130295 and 20160250, which enrolled 5,035 and 1,600 subjects who completed the FOURIER study to receive open-label evolocumab and were followed up for a median of 5 and 4.6 years, respectively. All patients in the extension program were treated with open label evolocumab resulting in no concurrent placebo arm during this period. Although not all patients participated in FOURIER-OLE, baseline characteristics were broadly comparable between the originally randomized treatment arms, thereby allowing for reasonably unconfounded exploratory comparisons between groups.

Total of 26,389 patients had an early achieved LDL-C available, 19,960 of whom were in FOURIER alone with a median follow-up of 2.0 years and 6,429 of whom also participated in FOURIER-OLE with a median follow-up of ~7 years and a maximum follow-up of 8.6 years.

PROFICIO Program
FOURIER and its extension studies are part of Amgen’s PROFICIO (Program to Reduce LDL-C and cardiovascular Outcomes Following Inhibition of PCSK9 In different populations) program of clinical studies investigating the impact of Repatha^® on LDL-C and CVD across multiple populations at high CV risk, including those managed by statins, statin-intolerant patients, those with genetic disorders and patients with atherosclerosis. To date, the PROFICIO program consists of 50 trials including more than 51,000 patients worldwide.

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 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.

Amgen is one of the 30 companies that comprise the Dow Jones Industrial Average and is also part of the Nasdaq-100 index. In 2022, Amgen was named one of the “World’s Best Employers” by Forbes and one of “America’s 100 Most Sustainable Companies” by Barron’s.

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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. The clinical benefits and safety of Repatha have been studied for 12 years in 50 clinical trials with over 47,000 patients. This vast body of evidence demonstrates that Repatha works rapidly.

Repatha is approved in more than 75 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 Information⁸

Repatha is a PCSK9 (proprotein convertase subtilisin/kexin type 9) inhibitor antibody indicated:

• in adults with established cardiovascular disease to reduce the risk of myocardial infarction, stroke, and coronary revascularization
• as an adjunct to diet, alone or in combination with other low-density lipoprotein cholesterol (LDLC)-lowering therapies, in adults with primary hyperlipidemia, including heterozygous familial hypercholesterolemia (HeFH), to reduce LDL-C
• as an adjunct to diet and other LDL-C-lowering therapies in pediatric patients aged 10 years and older with HeFH, to reduce LDL-C
• as an adjunct to other LDL-C-lowering therapies in adults and pediatric patients aged 10 years and older with homozygous familial hypercholesterolemia (HoFH), to reduce LDL-C

The safety and effectiveness of Repatha have not been established in pediatric patients with HeFH or HoFH who are younger than 10 years old or in pediatric patients with other types of hyperlipidemia or HeFH.

Important U.S. Safety Information⁸

INDICATIONS
Repatha® is indicated:

• In adults with established cardiovascular disease to reduce the risk of myocardial infarction, stroke, and coronary revascularization
• As an adjunct to diet, alone or in combination with other low-density lipoprotein cholesterol (LDL-C)–lowering therapies, in adults with primary hyperlipidemia, including heterozygous familial hypercholesterolemia (HeFH), to reduce LDL–C
• As an adjunct to diet and other LDL-C-lowering therapies in pediatric patients aged 10 years and older with HeFH, to reduce LDL-C
• As an adjunct to other LDL–C-lowering therapies in adults and pediatric patients aged 10 years and older with homozygous familial hypercholesterolemia (HoFH), to reduce LDL–C

The safety and effectiveness of Repatha® have not been established in pediatric patients with HeFH or HoFH who are younger than 10 years old or in pediatric patients with other types of hyperlipidemia.

IMPORTANT SAFETY INFORMATION

• Contraindication: Repatha® is contraindicated in patients with a history of a serious hypersensitivity reaction to evolocumab or any of the excipients in Repatha®. Serious hypersensitivity reactions including angioedema have occurred in patients treated with Repatha®.
• Hypersensitivity Reactions: Hypersensitivity reactions, including angioedema, have been reported in patients treated with Repatha®. If signs or symptoms of serious hypersensitivity reactions occur, discontinue treatment with Repatha®, treat according to the standard of care, and monitor until signs and symptoms resolve.

• Adverse Reactions in Adults with Primary Hyperlipidemia: The most common adverse reactions (>5% of patients treated with Repatha® and 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. Hypersensitivity reactions occurred in 5.1% and 4.7% of Repatha®-treated and placebo-treated patients, respectively. The most common hypersensitivity 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%).

• Adverse Reactions in the Cardiovascular Outcomes Trial: The most common adverse reactions (>5% of patients treated with Repatha® and 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 treated with Repatha® compared with 7.7% in patients that received placebo.

• Adverse Reactions in Pediatric Patients with HeFH: The most common adverse reactions (>5% of patients treated with Repatha® and more frequently than placebo) were: nasopharyngitis, headache, oropharyngeal pain, influenza, and upper respiratory tract infection.
• Adverse Reactions in Adults and Pediatric Patients with HoFH: In a 12-week study in 49 patients, 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. In an open-label extension study in 106 patients, including 14 pediatric patients, no new adverse reactions were observed.
• Immunogenicity: Repatha® is a human monoclonal antibody. As with all therapeutic proteins, there is potential for immunogenicity with Repatha®.

Please see full Prescribing Information.

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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References

1. Sabatine, Marc (2022, November 5-7). Long-Term Efficacy of Very Low LDL-Cholesterol Levels With the PCSK9 Inhibitor Evolocumab: Analysis of the FOURIER and FOURIER-OLE Studies [Conference Presentation]. American Heart Association Scientific Sessions, Chicago, Illinois.
2. World Health Organization. Cardiovascular diseases (CVDs) fact sheet. http://www.who.int/mediacentre/factsheets/fs317/en/. Accessed August 2022.
3. The American College of Cardiology. (2020, December 9). Cardiovascular Disease Burden, Deaths Are Rising Around the World. [Press Release]. Retrieved from https://www.acc.org/about-acc/press-releases/2020/12/09/18/30/cvd-burden-and-deaths-rising-around-the-world.
4. Understand your risks to prevent a heart attack. www.heart.org. (2022, February 10). Retrieved October 25, 2022, from https://www.heart.org/en/health-topics/heart-attack/understand-your-risks-to-prevent-a-heart-attack.
5. Baum, S. J., Rane, P. B., Nunna, S., Habib, M., Philip, K., Sun, K., Wang, X., & Wade, R. L. (2021). Geographic variations in lipid-lowering therapy utilization, LDL-C levels, and proportion retrospectively meeting the ACC/AHA very high-risk criteria in a real-world population of patients with major atherosclerotic cardiovascular disease events in the United States. American journal of preventive cardiology, 6, 100177. https://doi.org/10.1016/j.ajpc.2021.100177.
6. Jernberg T, Hasvold P, Henriksson M, et al. Cardiovascular risk in post-myocardial infarction patients: nationwide real world data demonstrate the importance of a long-term perspective. https://academic.oup.com/eurheartj/article/36/19/1163/2293202. Accessed 25 October 2022.
7. Lloyd-Jones, D. M., Morris, P. B., & Ballantyne, C. M., et al. (2022). 2022 ACC expert consensus decision pathway on the role of nonstatin therapies for LDL-cholesterol lowering in the management of atherosclerotic cardiovascular disease risk. Journal of the American College of Cardiology. https://doi.org/10.1016/j.jacc.2022.07.006.
8. Repatha^® U.S. Prescribing Information; Amgen, Thousand Oaks, CA, 2021.

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