Bempedoic Acid: A New Non-statin Drug for the Treatment of Dyslipidemia

Broader Perspective on Atherosclerosis-Selected Risk Factors, Biomarkers, and Therapeutic Approach

Atherosclerotic cardiovascular disease (ASCVD) stands as the leading cause of mortality worldwide. At its core lies a progressive process of atherosclerosis, influenced by multiple factors. Among them, lifestyle-related factors are highlighted, with inadequate diet being one of the foremost, alongside factors such as cigarette smoking, low physical activity, and sleep deprivation. Another substantial group of risk factors comprises comorbidities. Amongst others, conditions such as hypertension, diabetes mellitus (DM), chronic kidney disease (CKD), or familial hypercholesterolemia (FH) are included here. Extremely significant in the context of halting progression is counteracting the mentioned risk factors, including through treatment of the underlying disease. What is more, in recent years, there has been increasing attention paid to perceiving atherosclerosis as an inflammation-related disease. Consequently, efforts are directed towards exploring new anti-inflammatory medications to limit ASCVD progression. Simultaneously, research is underway to identify biomarkers capable of providing insights into the ongoing process of atherosclerotic plaque formation. The aim of this study is to provide a broader perspective on ASCVD, particularly focusing on its characteristics, traditional and novel treatment methods, and biomarkers that can facilitate its early detection.

Bempedoic acid: new evidence and recommendations on use

PURPOSES OF REVIEW

Cardiovascular diseases (CVDs) are the leading cause of mortality and morbidity worldwide. Recognizing the importance of dyslipidemia treatment in the prevention of cardiovascular events has become a part of standard clinical practice. Desired values of LDL cholesterol (LDL-C) have become lower and lower in the last few decades, as evidenced by the most recent guidelines. Therefore, efforts to lower LDL cholesterol concentrations with conventional therapies and combinations of lipid-lowering therapy may not be successful in a high proportion of patients.

RECENT FINDINGS

Bempedoic acid is a novel agent, first in-class ATP Citrate Lyase (ACL) inhibitor, which targets biosynthesis of the cholesterol in the liver. Considering the results of phase 3 studies, it has been approved for sole use for dyslipidemia treatment for patients who are statin-intolerant or in combination with statin-ezetimibe for those suffering from familial hypercholesterolemia or ASCVD and unable to reach targeted LDL-C values.

SUMMARY

Bempedoic acid has proven beneficial for further reduction of LDL cholesterol for targeted groups of patients. It is not only efficient but also a well tolerated, affordable, and available agent whose place in lipid-lowering management is yet to be fully understood with new data collected from ongoing clinical research. In this review we suggest the place of bempedoic acid in lipid-lowering management.

Bempedoic Acid: An Emerging Therapy for Uncontrolled Low-Density Lipoprotein (LDL) Cholesterol

Atherosclerotic cardiovascular disease (ASCVD) is a silent epidemic, which is progressing relentlessly across the globe. Developing countries such as India have a high prevalence of dyslipidemia and consequently a huge burden of coronary artery disease (CAD) and ASCVD. Low-density lipoprotein is regarded as the primary culprit in the genesis of ASCVD, and statins are the first line therapy for LDL-C lowering. Statin therapy has unequivocally demonstrated the benefit of lowering LDL-C in patients across the spectrum of CAD and ASCVD. Muscle symptoms and worsening of glycemic homeostasis could be challenges with statin therapy, especially with the use of high doses. A large fraction of patients are also unable to achieve their LDL goals with statins alone in clinical practice. Moreover, LDL-C goals have become aggressive over years, necessitating a combination of lipid lowering therapies. PCSK-9 inhibitors and Inclisiran have emerged as robust and safe lipid-lowering agents, but parenteral administration and high cost precludes their widespread use. Bempedoic acid is a novel lipid-lowering agent working upstream of statins by inhibiting the enzyme ATP citrate lyase (ACL). The drug produces an average LDL lowering of 22-28% in statin-naïve patients and 17-18% when given to preexisting statin users. Because skeletal muscles lack the ACL enzyme, there is minimal risk of muscle-related symptoms. In combination with ezetimibe, the drug synergistically reduced LDL-C by 39%. Moreover, the drug has no adverse effect on glycemic parameters and lowers hsCRP (inflammation) like statin. The series of four randomized CLEAR trials, involving >4000 patients, have shown consistent LDL lowering across the spectrum of ASCVD patients with or without background therapy. The large and only cardiovascular outcome trial of the drug (CLEAR Outcomes) has recently demonstrated a 13% reduction of MACE at 40 months. Rise in levels of uric acid (four times) and acute gout (three times) are more common compared to placebo with the drug, owing to competitive renal transportation by OAT 2. In a nutshell, Bempedoic acid represents a value addition to the inventory of dyslipidemia management.

[Novel options to maximize oral lipid lowering treatment : Role of bempedoic acid in combination treatment]

Epidemiological, randomized, controlled, clinical and genetic studies confirm that low-density lipoprotein cholesterol (LDL-C) is a causative factor for atherosclerotic diseases. The current European Society of Cardiology and European Atherosclerosis Society (ESC/EAS) guidelines on the management of dyslipidemia recommend a target LDL-C < 55 mg/dl and at least a 50% reduction in baseline LDL‑C for high-risk patients; however, these target values are often not achieved in routine clinical practice, as shown by recent cross-sectional data from EUROASPIRE or DaVinci. Therefore, combination treatment is recommended, which, as with treatment of blood pressure, can improve the success of treatment. Bempedoic acid is a new substance, which is suitable for combination treatment and represents an alternative particularly for patients with statin-associated muscular symptoms. Bempedoic acid reduces LDL‑C by approximately 25% in statin-naïve patients and by some 18% in addition to statins. In a fixed doses combination with ezetimibe, bempedoic acid can lower LDL‑C by up to 45% in statin-naïve patients and by 38% (placebo-corrected) in addition to statins. Bempedoic acid is generally very well tolerated: however, it can lead to a reversible increase in uric acid. Occasionally, a slight decrease in hemoglobin has been documented. Therefore, it is recommended that not only changes in lipid levels but also uric acid and hematological parameters should be monitored in the first 3 months.