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Original Research

Severity of statin-induced adverse effects on muscle and associated conditions: data from the DAMA study

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Pages 1583-1587 | Received 21 Jun 2016, Accepted 14 Sep 2016, Published online: 24 Oct 2016
 

ABSTRACT

Background: Statins are generally well tolerated, but muscular adverse effects appear to be the most common obstacle limiting their use. Our objective was to describe the severity of muscle injury (myalgia, myositis and rhabdomyolysis) and associated conditions related to statin therapy that may be clinically significant.

Methods: A cross-sectional one-visit, non-interventional, national multicenter study including patients of both sexes over 18 years of age referred for past or present muscle symptoms associated with statin therapy was conducted. Clinical, biochemical and drug therapy characteristics were obtained at the initial evaluation.

Results: 3,845 patients were recruited from a one-day record from 2,001 physicians. Myalgia was present in 78.2% of patients, myositis in 19.3% and rhabdomyolysis in 2.5%. The prevalence of different comorbidities such as diabetes, hypertension, atrial fibrillation, and coronary heart disease increased as the severity of myopathy rose. High-intensity statin therapy was used in 33.4% of patients. Concomitant drugs metabolized by the CYP450 3A4 pathway were taken by 9.3% of patients, and statins with this metabolic route by 75%. Independent variables associated with myositis or rhabdomyolysis compared with myalgia alone in the multivariate model were excessive alcohol consumption and pravastatin therapy.

Conclusion: Myalgia was the most common muscle adverse effect associated with statin therapy. Excessive alcohol consumption and pravastatin were independently associated with myositis or rhabdomyolysis.

Acknowledgments

This study was presented at the 83rd European Atherosclerosis Society Congress, Glasgow March 22–25, 2015. We thank Miss Christine O’Hara for review of the English version of the manuscript.

Declaration of interest

The authors have no relevant affiliations or financial involvement with any organization or entity with a financial interest in or financial conflict with the subject matter or materials discussed in the manuscript. This includes employment, consultancies, honoraria, stock ownership or options, expert testimony, grants or patents received or pending, or royalties.

Additional information

Funding

Esteve provided support for this study, without participating in the design, data analysis or writing of this article

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