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Differential Effects of Lipid-lowering Drugs in Modulating Morphology of Cholesterol Particles
Published on: November 10, 2017
Combination therapy for the treatment of dyslipidemia
1Sections of Endocrinology and Cardiology, VA Medical Center of West Los Angeles, Los Angeles, CA 90073, USA. dstreja@ucla.edu
Abstract:
Statins have been proven to reduce cardiovascular risk, and guidelines for cardiovascular prevention recommend statin therapy in a wide range of patients. However, in spite of the dramatic success in large randomized clinical trials, two thirds of patients administered statins are not protected against cardiovascular events. This has prompted a search for additional targets for therapy. The pandemic of metabolic syndrome and type 2 diabetes has led to a dramatic increase in the prevalence of dyslipidemia. This, in turn, has prompted a resurgence of the search for drugs and algorithms that favorably affect high-density lipoprotein (HDL) and very low-density lipoprotein (VLDL) metabolism and function. Fibrates are the best-studied class of agents to be used as an addition to statins since they have also been proven to reduce clinical events as a monotherapy. However, there is a need for large safety trials of statin-fibrate combination therapy. Statin-niacin combination therapy has proven to be safe and effective in altering lipoprotein pattern. Randomized clinical trials and more research on the mechanism of action of niacin are necessary. Inhibitors of cholesterol ester transfer protein and HDL therapy drugs are in early developmental stages, and are the most promising potential additions to the current arsenal.
Insights
Statins are effective but don't fully protect two-thirds of patients from cardiovascular events. New therapies targeting high-density lipoprotein (HDL) and very low-density lipoprotein (VLDL) are being explored to improve cardiovascular prevention.
Area of Science:
- Cardiology
- Pharmacology
- Metabolic Disorders
Background:
- Statins are recommended for cardiovascular prevention but fail to protect two-thirds of patients.
- The rising prevalence of metabolic syndrome and type 2 diabetes increases dyslipidemia.
- There is a need for additional therapies to improve cardiovascular risk reduction.
Purpose of the Study:
- To review current and emerging therapeutic strategies for dyslipidemia beyond statin monotherapy.
- To evaluate the potential of combination therapies and novel drug classes for cardiovascular risk reduction.
Main Methods:
- Review of clinical trial data on statin combination therapies (fibrates, niacin).
- Discussion of emerging drug classes: CETP inhibitors and HDL therapy agents.
- Analysis of lipoprotein metabolism and function in the context of dyslipidemia.
Main Results:
- Statin-fibrate combination therapy requires further safety trials.
- Statin-niacin combination therapy is safe and effective for lipoprotein patterns, needing more mechanistic research.
- CETP inhibitors and HDL therapy drugs show promise but are in early development.
Conclusions:
- Combination therapies and novel agents are crucial for optimizing cardiovascular prevention in dyslipidemic patients.
- Further research is needed to establish the safety and efficacy of new treatment strategies.
- Targeting HDL and VLDL metabolism offers promising avenues for future cardiovascular therapies.
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