Expert opinion on pharmacotherapy · 2013
The potential of mipomersen, an ApoB synthesis inhibitor, to reduce necessity for LDL-apheresis in patients with heterozygous familial hypercholesterolemia and coronary artery disease.
Клиническое исследование III фазыСтатьяРандомизированное исследованиеПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод в очереди
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Vogt Anja, Parhofer Klaus G
Аннотация
INTRODUCTION: LDL-apheresis is a treatment option for familial hypercholesterolemia (FH) with country-specific thresholds for LDL-cholesterol (LDL-C) for initiation. Apheresis also reduces lipoprotein(a) [Lp(a)] and may be used to lower Lp(a) in high-risk patients. Mipomersen, an apolipoproteinB-synthesis-inhibitor, reduces LDL-C and Lp(a). We hypothesized that mipomersen may prevent the necessity for apheresis by reducing the both below thresholds.
METHODS: Data from a study in 123 patients with heterozygous FH and coronary artery disease on maximally tolerated lipid-lowering therapy were used to evaluate in what percentage adding mipomersen resulted in lipid-levels below apheresis-thresholds. Different thresholds were tested: LDL-C ≥ 2.59 mmol/l, ≥ 3.36 mmol/l, ≥ 4.14 mmol/l, Lp(a) ≥ 60 mg/dl.
RESULTS: Mipomersen decreased LDL-C by 28% (baseline 153 mg/dl), Lp(a) by 21% (baseline 45 mg/dl) (placebo no effect). Mipomersen reduced the percentage of patients with LDL-C ≥ 4.14 mmol/l from 39 to 2%, with LDL ≥ 3.36 mmol/l from 62 to 16%, with LDL ≥ 2.59 mmol/l from 98 to 54%, and with Lp(a) ≥ 60 mg/dl from 39 to 23%.
SUMMARY: When added to maximally tolerated lipid-lowering therapy, mipomersen may reduce the necessity for apheresis in many of these patients. In Germany, the threshold for apheresis for LDL typically is 2.59 mmol/l, for Lp(a) 60 mg/dl. Almost 50% of the patients could avoid apheresis with the addition of mipomersen. Further studies are warranted to evaluate whether patients who qualify for apheresis could be adequately controlled with mipomersen.
METHODS: Data from a study in 123 patients with heterozygous FH and coronary artery disease on maximally tolerated lipid-lowering therapy were used to evaluate in what percentage adding mipomersen resulted in lipid-levels below apheresis-thresholds. Different thresholds were tested: LDL-C ≥ 2.59 mmol/l, ≥ 3.36 mmol/l, ≥ 4.14 mmol/l, Lp(a) ≥ 60 mg/dl.
RESULTS: Mipomersen decreased LDL-C by 28% (baseline 153 mg/dl), Lp(a) by 21% (baseline 45 mg/dl) (placebo no effect). Mipomersen reduced the percentage of patients with LDL-C ≥ 4.14 mmol/l from 39 to 2%, with LDL ≥ 3.36 mmol/l from 62 to 16%, with LDL ≥ 2.59 mmol/l from 98 to 54%, and with Lp(a) ≥ 60 mg/dl from 39 to 23%.
SUMMARY: When added to maximally tolerated lipid-lowering therapy, mipomersen may reduce the necessity for apheresis in many of these patients. In Germany, the threshold for apheresis for LDL typically is 2.59 mmol/l, for Lp(a) 60 mg/dl. Almost 50% of the patients could avoid apheresis with the addition of mipomersen. Further studies are warranted to evaluate whether patients who qualify for apheresis could be adequately controlled with mipomersen.