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Can a new drug make current cholesterol treatments more effective?

There is a need for new types of cholesterol treatment. A recent study investigated whether a drug called bempedoic could work alongside other cholesterol-lowering drugs.


LDL cholesterol, sometimes referred to as “bad cholesterol”, can build up in blood vessels. This is an important cause of cardiovascular disease since blockages of blood vessels can lead to heart attacks or stroke.

There are drugs, such as statins, that can lower LDL cholesterol levels. However, they don not always lower them as much as doctors would like. Statins can also cause side effects, such as muscle pain. Therefore medical researchers are constantly looking for a new type of cholesterol treatment.

New drug targets the liver where the body makes the most LDL cholesterol

Researchers have recently discovered a new drug that could potentially work alongside statins to help lower LDL cholesterol levels. This drug, called bempedoic acid, helps decrease the amount of cholesterol being made by your body.

Unlike statins, bempedoic acid is only active in the liver, the organ where most LDL cholesterol is made. This should decrease the risk of side effects such as muscle pain. A recent study investigated if bempedoic acid could lower LDL cholesterol levels in patients already taking other cholesterol-lowering drugs. The results of the study were published in The New England Journal of Medicine.

A large study of patients already taking cholesterol-lowering drugs

This study involved more than 2,000 participants. Almost all of them had cardiovascular disease, with an average LDL cholesterol level over 100 mg/dl. The participants were 66 years old, on average, and three-quarters of them were men. All of these participants were already taking the maximum-tolerated dosage of cholesterol-lowering drugs. The majority of them were taking statins. They continued to take these drugs for the duration of this study

At the start of the study, the researchers randomly divided the participants into two groups: one group which would receive bempedoic acid, and another group that would be given a placebo instead. This was a double-blinded study, meaning that neither the patients nor the medical staff treating them were aware which patients were receiving bempedoic acid or the placebo.

Bempedoic acid did not cause serious side effects

Overall, bempedoic acid did not cause any more side effects than the placebo. However, patients taking bempedoic acid were significantly more likely to have to stop taking the drug than those receiving the placebo. In all, 22% of patients stopped taking bempedoic acid for various reasons. In contrast, only 5% of patients stopped taking the placebo. This suggests that bempedoic acid does cause undesirable effects in a minority of patients. However, muscle pain, an important side effect for statins, was not very common in bempedoic acid patients.

Fifteen patients died during the study, but the researchers concluded that most of these deaths were not related to cholesterol treatment.

Reduced LDL cholesterol levels

Bempedoic acid reduced LDL cholesterol levels in the majority of the patients taking it. Within a month of the start of the study, LDL cholesterol levels had decreased. The placebo did not have any effect on LDL cholesterol level, as expected.

After three months, bempedoic acid had decreased LDL cholesterol levels by 18%. On average, LDL cholesterol levels decreased from over 100 mg/dl to 85 – 90 mg/dl. LDL cholesterol levels stayed low for the entire year that study participants were taking bempedoic acid.

Bempedoic effectively lowered LDL cholesterol levels in all the different types of patients in the study. For example, it was equally effective in men and women, patients of different ages, those with or without cardiovascular disease, and those who started with higher or lower LDL cholesterol levels.

A promising new LDL cholesterol treatment

This large, well-designed, study provided very convincing evidence that bempedoic acid could help patients lower their LDL cholesterol levels. Patients could safely take this drug in addition to their regular cholesterol-lowering medicine.

One potential issue with this new drug was that a significant minority of patients had to stop taking it. Unfortunately, it was not clear why this happened, since patients taking bempedoic acid did not report more side effects than patients receiving the placebo.

If bempedoic acid is approved as a drug for cholesterol treatment, doctors will need to carefully keep track of patients receiving it to ensure that they do not have problems.

Written by Bryan Hughes, PhD


  1. Ray, K. K., Bays, H. E., Catapano, A. L., Lalwani, N. D., Bloedon, L. T., Sterling, L. R., Robinson, P. L. & Ballantyne, C. M. Safety and Efficacy of Bempedoic Acid to Reduce LDL Cholesterol. New England Journal of Medicine 380, 1022-1032 (2019). https://www.nejm.org/doi/10.1056/NEJMoa1803917
  2. O’Hare, R. New cholesterol-lowering drug could help patients unable to take statins. March 13 2019. https://www.imperial.ac.uk/news/190532/new-cholesterollowering-drug-could-help-patients/
Bryan Hughes PhD
Bryan Hughes PhD
Bryan completed his Ph.D. in biology at McGill University, where he studied metabolism and the mechanisms of aging. He then worked at the University of Alberta as a Postdoctoral Research Fellow, investigating the causes of heart disease. After publishing many articles in scientific journals, he welcomes the opportunity to share the latest research findings with the wide audience of the Medical News Bulletin.


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