Dyslipidemias include elevated low-density lipoprotein (LDL) cholesterol, triglycerides, or lipoprotein(a). The primary goal of management is to prevent atherosclerotic cardiovascular disease (ASCVD). In today's side-by-side guideline comparison, we will review recommendations for non-statin medication used to lower LDL-cholesterol. You are encouraged to review the full text guidelines, which can be found at the links below, for a more comprehensive understanding of the most recent evidence-based clinical practice recommendations on the management of dyslipidemia.

For this dyslipidemia guidelines side-by-side comparison, we feature the latest clinical practice guidelines from the American Association of Clinical Endocrinologists (AACE), the European Society of Cardiology (ESC)/European Atherosclerosis Society (EAS) and the American College of Cardiology (ACC)/American Heart Association (AHA) on dyslipidemia. 

Key Takeaways From the Side-by-Side Comparison

General:

  • The AACE guideline has a limited scope focusing on newer non-statin pharmacotherapy for dyslipidemia.
  • The ESC/EAS guideline is a focused update on the management of dyslipidemias. Recommendations were made for cardiovascular risk estimation, low-density lipoprotein (LDL) lowering with bempedoic acid and evinacumab, lipid-lowering during index hospitalization, lipoprotein(a), pharmacotherapy for hypertriglyceridemia, statin therapy for patients with HIV and cancer, and dietary supplements.
  • The ACC/AHA guideline is the most comprehensive of the three with recommendations addressing evaluation, management, and monitoring of dyslipidemia which includes high blood cholesterol, hypertriglyceridemia, and high lipoprotein(a). Management components included primary prevention, severe hypercholesterolemia, hypercholesterolemia in patients with diabetes, clinical ASCVD, subclinical atherosclerosis, and hypertriglyceridemia. Special management considerations are included for elevated Lipoprotein(a), dyslipidemia in children, young adults, and older adults, pregnant or lactating patients, patients with heart failure, chronic inflammatory diseases, chronic kidney disease, HIV, and statin-attributed muscle symptoms.

ASCVD Risk:

  • The AACE recommends ASCVD risk be assessed using a validated tool, but did not prefer any one tool over another.
  • The ESC/EAS recommends using risk scores like SCORE2 and SCORE2-OP to estimate cardiovascular risk. These calculators are intended for European patients aged 40-69 years who do not have diabetes.
  • The ACC/AHA guideline recommends PREVENT-ASCVD equations for certain individuals depending on age, ASCVD status, presence of subclinical atherosclerosis, comorbid diabetes, and LDL-cholesterol and/or triglyceride levels. 
  • Both the SCORE2 and PREVENT risk calculators estimate risk based on age, sex, systolic blood pressure, total cholesterol, high-density lipoprotein (HDL), and smoking status. Additionally, PREVENT takes into consideration estimated glomerular filtration rate (eGFR), body mass index (BMI), history of diabetes, and current use of lipid-lowering or antihypertensive medications. PREVENT is recommended beginning at age 30 whereas SCORE2 is recommended beginning at the age of 40 years.
  • For individuals with heterozygous familial hypercholesterolemia (HeFH) the ACC/AHA recommends not using standard risk assessment tools since those are designed to calculate risk in the general population.
  • The ACC/AHA also recommends measurement of lipoprotein(a) at least once for ASCVD risk assessment and potentially apolipoprotein B (apoB) measurement to improve risk assessment. The AACE found there to be limited use for these measurements in calculating ASCVD risk.

Risk Enhancers:

  • The AACE did not address risk enhancers with any clinical recommendations finding that adding risk enhancers to a standard, validated ASCVD risk calculator offered little improvement in risk prediction.
  • Both the EAS/ESC and the ACC/AHA recommend taking risk modifiers into consideration, including coronary artery calcium (CAC) scores. This is particularly helpful in guiding treatment decisions in patients with borderline risk.

Treatment Goals:

  • The AACE suggests treating LDL-cholesterol to less than 70 mg/dL in patients with ASCVD or at increased risk of ASCVD.
  • Both the EAS/ESC and the ACC/AHA recommends treatment goals based on estimated risk for ASCVD as follows:
    • Moderate/intermediate risk: LDL-cholesterol goal less than 100 mg/dL.
    • High risk: LDL-cholesterol goal less than 70 mg/dL.
  • The EAS/ESC also recommends less aggressive LDL goals for low risk patients and more aggressive LDL goals for patients at very high risk.

Non-Statin Lipid-Lowering Therapy:

Ezetimibe

  • Neither the AACE nor the EAS/ESC addressed the use of ezetimibe.
  • The ACC/AHA guideline recommends adding ezetimibe to a maximally tolerated statin for patients with:
    • Severe hypercholesterolemia with ASCVD
    • Severe hypercholesterolemia without ASCVD but with HeFH, additional ASCVD risk factors or coronary calcification
    • Clinical ASCVD who are at very high risk.
  • The ACC/AHA guideline states that it may be reasonable to add ezetimibe to a maximally tolerated statin for patients with:
    • High 10-year ASCVD risk
    • Clinical ASCVD who are not at very high risk
    • Confirmed homozygous familial hypercholesterolemia (HoFH).

Proprotein Convertase Subtilisin/Kexin Type 9 (PCSK9) Monoclonal Antibodies (mAbs)

  • The AACE suggests adding a PCSK9 mAb for patients on a maximally tolerated statin who have ASCVD or are at increased risk for ASCVD, but suggests against PCSK9 mAb use in patients without ASCVD who can tolerate other lipid-lowering therapies.
  • The EAS/ESC did not address the use of PCSK9 mAbs.
  • The ACC/AHA guideline recommends adding a PCSK9 mAb to a maximally tolerated statin for patients with:
    • Severe hypercholesterolemia with ASCVD
    • Severe hypercholesterolemia without ASCVD but with HeFH, additional ASCVD risk factors or coronary calcification
    • Clinical ASCVD who are at very high risk.
  • The ACC/AHA guideline states that it may be reasonable to add a PCSK9 mAb to a maximally tolerated statin for patients with:
    • High 10-year risk whether or not they are also taking ezetimibe
    • Clinical ASCVD who are not at very high risk
    • Confirmed HoFH.

Bempedoic Acid

  • The AACE suggests against using bempedoic acid for patients without ASCVD who may tolerate other lipid-lowering medications.
  • Both the EAS/ESC and ACC/AHA suggest considering adding bempedoic acid to a maximally tolerated statin with or without ezetimibe for patients at high or very high risk.
  • The ACC/AHA guideline also recommends adding bempedoic acid to a maximally tolerated statin for patients with:
    • Severe hypercholesterolemia with ASCVD
    • Severe hypercholesterolemia without ASCVD but with HeFH, additional ASCVD risk factors, or coronary calcification.
  • THe ACC/AHA guideline states that it may be reasonable to add bempedoic acid to a maximally tolerated statin for patients with:
    • High 10-year risk whether or not they are also taking ezetimibe
    • Confirmed HoFH
    • Clinical ASCVD who are at very high risk with or without ezetimibe and/or PCSK9 mAb
    • Clinical ASCVD who are not at very high risk.

Inclisiran

  • The AACE cited insufficient evidence to make a recommendation for or against the use of inclisiran.
  • The EAS/ESC did not address the use of inclisiran.
  • The ACC/AHA guideline states that it is reasonable to add inclisiran to a maximally tolerated statin with or without ezetimibe for patients with:
    • Severe hypercholesterolemia with or without ASCVD
    • Clinical ASCVD at very high risk, who can not tolerate a PCSK9 mAb.

Evinacuma

  • The AACE did not address the use of evinacumab for dyslipidemia.
  • Both the EAS/ESC and ACC/AHA consider adding evinacumab to maximally tolerated lipid-lowering therapies for patients with HoFH. The EAS/ESC specifically recommends this for patients with HoFH who are at least 5 years old.

Lomitapide

  • The AACE and the EAS/ESC did not address the use of lomitapide.
  • The ACC/AHA considers the addition of lomitapide in patients with HoFH on a maximally tolerated statin, ezetimibe, and a PCSK9 mAb.

Dietary Supplements

  • The AACE did not address the use of dietary supplements for elevated LDL-cholesterol.
  • Neither the EAS/ESC nor the ACC/AHA recommend dietary supplements to lower the risk of ASCVD.
Comparison of Recommendations

Assessment of ASCVD Risk and Treatment Goals:

Non-Statin Lipid Lowering Therapies:

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