Journal of clinical lipidology · 2018
Sebelipase alfa improves atherogenic biomarkers in adults and children with lysosomal acid lipase deficiency.
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Wilson Don P, Friedman Mark, Marulkar Sachin, Hamby Tyler, Bruckert Eric
Аннотация
BACKGROUND: Measures of atherogenic cholesterol, with and without concomitant use of lipid-lowering medications (LLMs), are reported with up to 52 weeks of sebelipase alfa treatment in children and adults with lysosomal acid lipase deficiency (LAL-D) participating in the phase 3 Acid Lipase Replacement Investigating Safety and Efficacy study (NCT01757184).
OBJECTIVE: To examine the effects of sebelipase alfa on levels of atherogenic biomarkers in the Acid Lipase Replacement Investigating Safety and Efficacy study.
METHODS: Data were prospectively collected for LDL particle (LDL-P) number, LDL-C, HDL-C, apolipoprotein B (apoB), apolipoprotein A1 (apoA1), and LDL-P size. Differences at week 20 between the sebelipase alfa and placebo groups were assessed for the overall LAL-D cohort and for patients receiving and not receiving LLMs. Changes from baseline after up to 52 weeks of treatment were also calculated for the overall cohort and separately for patients receiving and not receiving LLMs.
RESULTS: Baseline values for LDL-C, LDL-P number, and apoB were elevated while HDL-C and apoA1 were low. Treatment with sebelipase alfa for 20 weeks significantly improved atherogenic measures compared with placebo irrespective of LLM usage. The reduction in LDL-C with sebelipase alfa was associated with a reduction in the LDL-P number. Treatment for up to 52 weeks was associated with sustained improvements of LDL-P, LDL-C, HDL-C, apoB, and apoA1, regardless of LLM use.
CONCLUSION: Patients with LAL-D have high atherogenic risk. It is essential to address the underlying LAL deficiency to restore cholesterol homeostasis in LAL-D patients, as treatment with sebelipase alfa improves atherogenic measures regardless of LLM use and for a sustained period. Sebelipase alfa appears to reduce LDL-C by decreasing the LDL-P number, suggesting improvement in cardiovascular disease risk in LAL-D patients.
OBJECTIVE: To examine the effects of sebelipase alfa on levels of atherogenic biomarkers in the Acid Lipase Replacement Investigating Safety and Efficacy study.
METHODS: Data were prospectively collected for LDL particle (LDL-P) number, LDL-C, HDL-C, apolipoprotein B (apoB), apolipoprotein A1 (apoA1), and LDL-P size. Differences at week 20 between the sebelipase alfa and placebo groups were assessed for the overall LAL-D cohort and for patients receiving and not receiving LLMs. Changes from baseline after up to 52 weeks of treatment were also calculated for the overall cohort and separately for patients receiving and not receiving LLMs.
RESULTS: Baseline values for LDL-C, LDL-P number, and apoB were elevated while HDL-C and apoA1 were low. Treatment with sebelipase alfa for 20 weeks significantly improved atherogenic measures compared with placebo irrespective of LLM usage. The reduction in LDL-C with sebelipase alfa was associated with a reduction in the LDL-P number. Treatment for up to 52 weeks was associated with sustained improvements of LDL-P, LDL-C, HDL-C, apoB, and apoA1, regardless of LLM use.
CONCLUSION: Patients with LAL-D have high atherogenic risk. It is essential to address the underlying LAL deficiency to restore cholesterol homeostasis in LAL-D patients, as treatment with sebelipase alfa improves atherogenic measures regardless of LLM use and for a sustained period. Sebelipase alfa appears to reduce LDL-C by decreasing the LDL-P number, suggesting improvement in cardiovascular disease risk in LAL-D patients.