Abstract 12450: Long-Term Efficacy and Safety of Lomitapide for the Treatment of Homozygous Familial Hypercholesterolemia: Results of the Phase 3 Extension Trial
2015
Background: Homozygous familial hypercholesterolemia (HoFH) is a rare genetic condition characterized by highly elevated low-density lipoprotein cholesterol (LDL-C) levels and high cardiovascular disease risk. Lomitapide, an oral microsomal triglyceride transfer protein inhibitor, was approved for the treatment of adult HoFH based on a small phase 3 study. We report efficacy and safety results from the phase 3 long-term extension study. Methods: Eligible HoFH patients completing the 78-wk phase 3 pivotal trial were enrolled into a single-arm extension study where lomitapide was administered daily at the maximum tolerated dose (5-60mg/d) until lomitapide was commercially available in the patient’s country. Concurrent lipid-lowering therapies, including apheresis, were permitted. Results: Nineteen of 23 patients who completed the pivotal study entered the extension trial (9/19 apheresis) with 16 patients completing all end of study assessments. Mean treatment duration was 4.8 yrs (range 2.1-5.7 yrs, median ...
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