MTP inhibition as a treatment for dyslipidaemias: time to deliver or empty promises?

John R Burnett1, Gerald F Watts

  • 1PathWest Laboratory Medicine, Department of Core Clinical Pathology & Biochemistry, Royal Perth Hospital, Wellington Street Campus, GPO Box X2213, Perth, WA 6847, Australia. john.burnett@health.wa.gov.au

Insights

Novel microsomal triglyceride transfer protein (MTP) inhibitors offer new treatment options for hyperlipidaemia, particularly for patients unresponsive to statins. These agents target hepatic apoB secretion but require further safety evaluation, especially regarding fatty liver disease.

Area of Science:

  • Cardiovascular Medicine
  • Pharmacology
  • Metabolic Disorders

Background:

  • Cholesterol-lowering drugs like statins, bile acid sequestrants, and cholesterol absorption inhibitors are crucial for cardiovascular prevention.
  • Current guidelines recommend defined lipid targets for individuals at high risk of atherosclerotic coronary heart disease.
  • Combination therapy is often necessary to achieve lipid targets, but some patients remain unresponsive or intolerant to conventional treatments.

Purpose of the Study:

  • To review novel therapeutic approaches for dyslipidaemias focusing on microsomal triglyceride transfer protein (MTP) inhibition.
  • To identify patient populations who may benefit from MTP inhibitors.
  • To discuss the potential role and safety considerations of MTP inhibitors in managing hyperlipidaemias.

Main Methods:

  • Review of existing literature on hyperlipidaemia treatments.
  • Focus on the mechanism of action of MTP inhibitors.
  • Analysis of patient profiles suitable for MTP inhibitor therapy.

Main Results:

  • Microsomal triglyceride transfer protein (MTP) inhibitors represent a promising new class of drugs for hyperlipidaemias.
  • These agents are particularly relevant for patients with hepatic overproduction of apoB, including those with metabolic syndrome, Type 2 diabetes mellitus, familial combined hyperlipidaemia, and familial hypercholesterolaemia (homozygous and heterozygous).
  • MTP inhibitors can be used alone or in combination therapies.

Conclusions:

  • MTP inhibitors offer an alternative treatment strategy for dyslipidaemias, especially for difficult-to-treat patient groups.
  • Careful consideration of safety issues, such as the potential for fatty liver disease, is essential for the clinical application of MTP inhibitors.
  • Further research is needed to fully establish the role and optimize the use of MTP inhibitors in cardiovascular disease prevention.

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