Mechanism of bempedoic acid induced cholelithiasis: A role for statins to limit this adverse effect?

Novel insights into post-marketing AEs associated with bempedoic acid: a comprehensive analysis utilizing the FAERS database

BACKGROUND

Bempedoic acid is a new drug for lowering low-density lipoprotein cholesterol. This study used the United States Food and Drug Administration (FDA) Adverse Event Reporting System (FAERS) database to retrospectively mine adverse events of oral bempedoic acid in the real world.

RESEARCH DESIGN AND METHODS

The FAERS database was searched to extract the adverse reactions of bempedoic acid from the third quarter of 2020 to the fourth quarter of 2023. After data standardization, the Reporting Odds Ratio (ROR), Proportional Reporting Ratio (PRR), Bayesian Confidence Propagation Neural Network (BCPNN), and Multi-item Gamma Poisson Shrinker (MGPS) methods were used to comprehensively evaluate the adverse reaction signals.

RESULTS

A total of 1091 adverse reaction reports were identified, and 70 adverse reaction terms were obtained, involving 22 system categories. According to the ROR signal ranking, the most affected System Organ Classes (SOCs) were "musculoskeletal and connective tissue disorders,""hepatobiliary disorders," and "investigation." Preferred Terms (PTs) with high signal intensity had low density lipoprotein abnormality, elevated blood uric acid, biliary colic, etc. New adverse reaction signals such as esophageal spasm, angina, apathy were reported.

CONCLUSIONS

This study provide support for clinical monitoring and risk identification of bempedoic acid.

Statin alternatives for the treatment of hypercholesterolemia - a safety evaluation

INTRODUCTION

Statins are well established as the first-line treatment to reduce low-density-lipoprotein cholesterol (LDL-C) and cardiovascular (CV) events, but some patients are unable to tolerate effective doses or sometimes any dose of statins and alternative treatments may be required.

AREAS COVERED

In this review we summarize the relevant published literature obtained from a PubMed search on the safety of statin alternatives for the treatment of hypercholesterolemia.

EXPERT OPINION

The main alternatives to statins are ezetimibe, the proprotein convertase subtilisin/kexin type 9 (PCSK9) inhibitors, evolocumab, alirocumab, and inclisiran, and the recently approved bempedoic acid. These have all shown an excellent safety profile and have not been associated with skeletal muscle symptoms or with increased risk of new onset diabetes and they have no major drug interactions. The injectable PCSK9 inhibitors are associated with a small increase in injection site reactions which are usually of mild or moderate intensity. Bempedoic acid is associated with a small increase in plasma uric acid and slightly increased frequency of episodes of gout in susceptible subjects. The cost and availability and the degree of lowering of LDL-C required are more likely to determine the choice of statin alternatives than the safety issues.

Bempedoic Acid, the First-in-Class Oral ATP Citrate Lyase Inhibitor with Hypocholesterolemic Activity: Clinical Pharmacology and Drug-Drug Interactions

Bempedoic acid is a new drug that improves the control of cholesterol levels, either as monotherapy or in combination with existing lipid-lowering therapies, and shows clinical efficacy in cardiovascular disease patients. Thus, patients with comorbidities and under multiple therapies may be eligible for bempedoic acid, thus facing the potential problem of drug-drug interactions (DDIs). Bempedoic acid is a prodrug administered orally at a fixed daily dose of 180 mg. The dicarboxylic acid is enzymatically activated by conjugation with coenzyme A (CoA) to form the pharmacologically active thioester (bempedoic acid-CoA). This process is catalyzed by very-long-chain acyl-CoA synthetase 1 (ACSVL1), expressed almost exclusively at the hepatic level. Bempedoic acid-CoA is a potent and selective inhibitor of ATP citrate lyase (ACL), a key enzyme in the biosynthetic pathway of cholesterol and fatty acids. The drug reduces low-density lipoprotein-cholesterol (LDL-C) (20-25%), non-high-density lipoprotein-cholesterol (HDL-C) (19%), apolipoprotein B (apoB) (15%), and total cholesterol (16%) in patients with hypercholesterolemia or mixed dyslipidemia. The drug has a favorable pharmacokinetics profile. Bempedoic acid and its metabolites are not substrates or inhibitors/inducers of cytochrome P450 (CYP450) involved in drug metabolism. On the other hand, bempedoic acid-glucuronide is a substrate for organic anion transporter 3 (OAT3). Bempedoic acid and its glucuronide are weak inhibitors of the OAT2, OAT3, and organic anion-transporting polypeptide 1B1 (OATP1B1) and 1B3 (OATP1B3). Thus, bempedoic acid could inhibit (perpetrator) the hepatic uptake of OATP1B1/3 substrate drugs and the renal elimination of OAT2 and OAT3 substrates and could suffer (victim) the effect of OAT3 transporter inhibitors, reducing its renal elimination. Based on these pharmacological characteristics, here, we describe the potential DDIs of bempedoic acid with concomitant medications and the possible clinical implications.

Bempedoic acid: a new player for statin-intolerant patients and beyond

PURPOSE OF REVIEW

Low-density lipoproteins (LDL) cause atherosclerotic cardiovascular disease, a condition associated with significant morbidity and mortality. Statins represent the cornerstone for preventing cardiovascular events in patients with elevated LDL-cholesterol (LDL-C) levels, however, they are associated with frequent musculoskeletal adverse effects, which lead to drug discontinuation or limit their use to low (and less effective) doses. Bempedoic acid (BA) is a newly approved, safe, cholesterol-lowering agent that inhibits ATP-citrate lyase, an enzyme upstream to 3-hydroxy-3-methyl-glutaryl-CoA (HMG-CoA) reductase, the target of statins. Unlike statins, BA is not associated with musculoskeletal side effects, representing a promising drug for statin-intolerant patients. This review aims to summarize the current evidence on the efficacy, safety, and impact on clinical outcomes of BA, to review current indications for its use, and to highlight the ongoing clinical trials that will help deepen our knowledge of this promising compound.

RECENT FINDINGS

BA improves clinical outcomes in statin-intolerant patients. Multiple ongoing studies are evaluating whether BA can be employed in other clinical settings.

SUMMARY

BA safely and effectively reduces the levels of multiple atherogenic markers and can be employed to reach LDL-C targets independently from statin tolerance.

Low-Density Lipoprotein Cholesterol-Lowering Drugs: A Narrative Review

The modern history of cholesterol-lowering drugs started in 1972 when Dr. Akira Endo identified an active compound (compactin) that inhibited cholesterol biosynthesis from the culture broth of blue-green mold (Penicillium citrinum Pen-51). Since 1987, statins have represented the milestone for the treatment of atherosclerotic cardiovascular disease. A new therapy for the treatment of hypercholesterolemia since the discovery of statins is ezetimibe, the first and only agent inhibiting intestinal cholesterol absorption. Ezetimibe was approved by the FDA in October 2002. A year later, the association between gain-of-function PCSK9 genetic mutations and hypercholesterolemia was reported, and this discovery opened a new era in lipid-lowering therapies. Monoclonal antibodies and small-interfering RNA approaches to reduce PCSK9 were developed and approved for clinical use in 2015 and 2022, respectively. Finally, the newly approved bempedoic acid, an oral adenosine triphosphate citrate lyase inhibitor that lowers LDL-C, is able to reduce major adverse cardiovascular events in both primary and secondary prevention. In the present narrative review, we summarize the pharmacological properties and the clinical efficacy of all these agents currently used for a tailored therapy of hypercholesterolemia in patients with atherosclerotic cardiovascular disease.

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.