Journal of clinical lipidology · 2011
Effects of coadministered extended-release niacin/laropiprant and simvastatin on lipoprotein subclasses in patients with dyslipidemia.
СтатьяРандомизированное исследованиеПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод в очереди
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Ballantyne Christie, Gleim Gilbert, Liu Nancy, Sisk Christine McCrary, Johnson-Levonas Amy O, Mitchel Yale
Аннотация
BACKGROUND: The use of extended-release niacin and the prostaglandin D₂ receptor antagonist laropiprant (ERN/LRPT) reduces niacin-induced flushing in patients while preserving its lipid-modifying effects.
OBJECTIVE: This predefined exploratory analysis examined the individual and combined effects of ERN/LRPT and simvastatin (SIM) on lipoprotein subclasses.
METHODS: This double-blind study randomized 1398 dyslipidemic patients equally to ERN/LRPT 1 g/20 mg, SIM (10, 20, or 40 mg), or ERN/LRPT 1 g/20 mg + SIM (10, 20, or 40 mg) once daily for 4 weeks. At week 5, doses were doubled, except SIM 40 mg (unchanged) and ERN/LRPT 1 g/20 mg + SIM 40 mg (switched to ERN/LRPT 2 g/40 mg + SIM 40 mg). Cholesterol associated with lipoprotein subclasses was quantified by vertical auto profile II (VAP II).
RESULTS: ERN/LRPT + SIM and SIM alone lowered LDL-C 1 and 3, whereas the effects were variable for ERN/LRPT; all three treatments increased LDL-C 4. ERN/LRPT + SIM and ERN/LRPT raised HDL-C 2 and 3, with greater relative percent changes in HDL 2 than HDL 3. ERN/LRPT + SIM for 12 weeks produced substantial reductions in IDL-C, which was additive compared with each monotherapy.
CONCLUSION: Coadministered ERN/LRPT + SIM produced marked reductions in atherogenic lipoproteins, with the greatest effect on IDL-C, and increases in protective HDL subclasses.
OBJECTIVE: This predefined exploratory analysis examined the individual and combined effects of ERN/LRPT and simvastatin (SIM) on lipoprotein subclasses.
METHODS: This double-blind study randomized 1398 dyslipidemic patients equally to ERN/LRPT 1 g/20 mg, SIM (10, 20, or 40 mg), or ERN/LRPT 1 g/20 mg + SIM (10, 20, or 40 mg) once daily for 4 weeks. At week 5, doses were doubled, except SIM 40 mg (unchanged) and ERN/LRPT 1 g/20 mg + SIM 40 mg (switched to ERN/LRPT 2 g/40 mg + SIM 40 mg). Cholesterol associated with lipoprotein subclasses was quantified by vertical auto profile II (VAP II).
RESULTS: ERN/LRPT + SIM and SIM alone lowered LDL-C 1 and 3, whereas the effects were variable for ERN/LRPT; all three treatments increased LDL-C 4. ERN/LRPT + SIM and ERN/LRPT raised HDL-C 2 and 3, with greater relative percent changes in HDL 2 than HDL 3. ERN/LRPT + SIM for 12 weeks produced substantial reductions in IDL-C, which was additive compared with each monotherapy.
CONCLUSION: Coadministered ERN/LRPT + SIM produced marked reductions in atherogenic lipoproteins, with the greatest effect on IDL-C, and increases in protective HDL subclasses.