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Updated: Mar 2, 2026

Differential Effects of Lipid-lowering Drugs in Modulating Morphology of Cholesterol Particles
Published on: November 10, 2017
Dyslipidemia management update
Yingzi Chang1, Jacques Robidoux2
1A.T. Still University, Kirksville College of Osteopathic Medicine, Department of Pharmacology, Kirksville, MO 63501, USA.
Insights
New cholesterol drugs, like PCSK9 antibodies, significantly lower LDL-C in patients with hypercholesterolemia. Novel approaches targeting reverse cholesterol transport may offer future cardiovascular risk reduction strategies.
Area of Science:
- Cardiology
- Pharmacology
- Biochemistry
Background:
- Hypercholesterolemia is a known risk factor for atherosclerotic cardiovascular disease (ASCVD).
- Therapeutic strategies traditionally focus on reducing low-density lipoprotein-cholesterol (LDL-C) and increasing high-density lipoprotein-cholesterol (HDL-C).
- Conventional cholesterol-lowering medications include statins, ezetimibe, and bile-acid sequestrants.
Purpose of the Study:
- To review recent advancements in cholesterol-lowering therapies.
- To evaluate the efficacy of novel drug classes for hypercholesterolemia.
- To explore potential new therapeutic targets for cardiovascular risk reduction.
Main Methods:
- Review of clinical trials and recent approvals of novel cholesterol-lowering agents.
- Analysis of the impact of proprotein convertase subtilisin/kexin type 9 (PCSK9) antibodies on LDL-C levels.
- Evaluation of apolipoprotein B-100 (Apo B-100) antisense and microsomal triglyceride transfer protein (MTP) inhibitors.
- Assessment of outcomes from trials investigating HDL-raising drugs and reverse cholesterol transport.
Main Results:
- PCSK9 antibodies, when added to statin therapy, can reduce LDL-C by up to 60%.
- ApoB antisense and MTP inhibitors are approved for homozygous familial hypercholesterolemia.
- Many HDL-raising drug trials have yielded unpromising results.
- Enhancing reverse cholesterol transport shows potential as a novel therapeutic strategy.
Conclusions:
- Novel therapies like PCSK9 antibodies offer significant LDL-C reduction for inadequately controlled hypercholesterolemia.
- Current HDL-targeting drugs have limited success, suggesting a shift towards targeting reverse cholesterol transport.
- Future research may focus on modulating reverse cholesterol transport to mitigate cardiovascular risk.
Abstract:
Association of hypercholesterolemia and atherosclerotic cardiovascular disease (ASCVD) is well established. Reducing low-density lipoprotein-cholesterol (LDL-C) and raising high-density lipoprotein-cholesterol (HDL-C) have been the therapeutic targets to reduce the risk of ASCVD. Cholesterol-lowering medications have been used to provide both primary and secondary prevention of ASCVD for many years by reducing the absorption and reabsorption, promoting excretion, or decreasing the synthesis of cholesterol. Within the past five years, several new classes of cholesterol-lowering drugs have been tested and approved for patients with hypercholesterolemia that are not well controlled by conventional therapy (ezetimibe, bile-acid sequestrants, and statins). These drugs include proprotein convertase subtilisin/kexin type 9 (PCSK9) antibodies, apolipoprotein A-100 (Apo B-100) antisense, and microsomal triglyceride transfer protein (MTP) inhibitor. Clinical trials revealed that adding PCSK9 antibodies to the preexisting statin therapy can further reduce LDL-C by 60%. ApoB antisense and MTP inhibitor are currently approved for patients with homozygous familial hypercholesterolemia. Several HDL-raising drugs have also been tested, but the results are not promising. Studies suggest that specifically raising reverse cholesterol transport rather than HDL-C level could be a novel therapeutic approach to reduce cardiovascular risk.
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