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Cardiol Rev. 2012 Mar-Apr;20(2):90-5. doi: 10.1097/CRD.0b013e31823424be.

Mipomersen: a safe and effective antisense therapy adjunct to statins in patients with hypercholesterolemia.

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  • 1Departments of Medicine, Harvard Medical School/Beth Israel Deaconess Medical Center, Boston, MA, USA.


Mipomersen is an antisense oligonucleotide inhibitor of apolipoprotein (apo) B-100 currently in phase 3 of development for the treatment of hyperlipidemia in patients with a high risk for cardiovascular disease. The drug acts by inhibiting the production of apoB-100, which is the structural core for all atherogenic lipids, including low-density lipoprotein cholesterol (LDL-C). The agent has been shown to produce significant reductions in LDL-C from baseline values compared with placebos. Clinical trials have demonstrated that mipomersen reduces LDL-C up to 44% in patients with familial hypercholesterolemia and patients with significantly elevated LDL despite taking maximum doses of statins. Unlike other medications that target apoB-100, such as microsomal triglyceride transfer proteins, mipomersen does not cause hepatic steatosis or intestinal steatosis and does not affect dietary fat absorption. Adverse side effects encountered with mipomersen include flu-like symptoms, injection site reactions, and elevated liver transaminases. If future studies continue to show such promising results, mipomersen would likely be a viable additional lipid-lowering therapy for patients who are at high cardiovascular risk, intolerant to statins, and/or not at target lipid levels despite maximum doses of statin therapy. Clinical outcome studies looking at cardiovascular disease end points still need to be done.

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