Objectives: The objective of this study was to examine whether statin therapy is associated with enhanced endothelium-dependent vascular function, improved pulmonary function and reduced systemic inflammation in patients with chronic obstructive pulmonary disease (COPD).
Design And Setting: This randomized, placebo-controlled, double-blind, parallel trial including patients with COPD was performed at two University hospitals in Norway.
Subjects, Intervention And Measurements: Patients with stable COPD (n = 99) were assigned randomly to receive rosuvastatin 10 mg (n = 49) or matching placebo (n = 50) once daily for 12 weeks. The primary outcome measure was change in endothelium-dependent vascular function measured using peripheral arterial tonometry and expressed as the reactive hyperaemia index. Secondary end-points were change in pulmonary function, as assessed by forced expiratory volume in 1 s (FEV1) and FEV1/forced vital capacity (FVC), and change in the circulating levels of the inflammatory markers interleukin-6 (IL6) and high-sensitivity C-reactive protein (hsCRP).
Results: In the overall study population, no significant between-group difference in change in endothelium-dependent vascular or pulmonary function was observed. Rosuvastatin therapy was associated with a reduction in hsCRP (-20% vs. 11%, P = 0.017) and an attenuation of the rise in IL6 concentration (8% vs. 30%, P = 0.028) compared with placebo. In a prespecified subgroup analysis of patients with a supra-median circulating hsCRP concentration (>1.7 mg L(-1) ), rosuvastatin was associated with improved endothelium-dependent vascular function (13% vs. 2%, P = 0.026).
Conclusions: In stable COPD patients without the standard indications for statin therapy, rosuvastatin treatment is associated with a significant attenuation of systemic inflammation and improvement in endothelial-dependent vascular function in patients with evidence of systemic inflammation.
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| http://dx.doi.org/10.1111/joim.12337 | DOI Listing |
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