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Criner et al. NEJM 2014: 370; 23 Simvastatin for the Prevention of Exacerbations in Moderate-to-Severe COPD (STATCOPE) Presented by Ali Naqvi, MD
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History
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“Use of Statins and Lung Function in Current or Former Smokers” – Keddissi, et al. Retrospective Cohort study at Okalahoma City’s VA Hospital in 2005 Conducted chart reviews of 418 patients: Statin vs. Non-statin Smokers or Former-smokers Abnormal baseline PFT findings (2x’s 6 months apart), with either obstructive (n= 319) or restrictive disease (n = 99) End points to evaluate decline in PFT’s & need for urgent care Results: Statin group had lower decline in FEV 1 and FVC vs. non-statin group (p<0.001)& ↓ urgent care visits in obstructive patients (p<.02) Conclusion: Statins can be an effective tx for lung disease
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Quick Recap
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STATCOPE Trial Methods Multi-center randomized, parallel-group, placebo controlled trial (March 2010- Oct 2013) Primary Exposure: 40mg Simvastatin vs. Placebo Primary Outcome: Exacerbation Rate (# of exacerbations per person-year) Secondary Outcomes: Time to First Exacerbation Severity of Exacerbation (mild, moderate, severe, very severe) Quality of Life (SGRQ & SF-36 questionnaires) Spirometric Values
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Methods Cont’d Inclusion CriteriaExclusion Criteria 40-80 years of ageActive Liver Disease or alcoholism Clinical Diagnosis of Moderate-to-Severe COPD based on GOLD criteria History of statin use or require statin based on ATP III guidelines FEV 1 /FVC < 70% post bronchodilator use FEV 1 < 80% post bronchodilator use Receiving medications contraindicated with statins 10+ pack year smoking history In the past year (need one of the following): -Use of oxygen -Use of steroids or antibiotic agents for respiratory issues -ED presentation or admission for COPD
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Results
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Results- Primary & Secondary Outcomes OutcomeSimvastatinPlaceboP-value FVC, % pred-0.83 (-7.19, 5.28) -0.93 (-7.16, 5.4) 0.6832 FEV1, % pred-0.86 (-11.04, 8.67) -1.81 (-10.62, 7.10).1461 FEV1/FVC-0.21 (-6.91, 5.47) -0.21 (-5.04, 5.98).3581
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Results- Acute Exacerbations per per-yr
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Results- Effect of Statin on time to first exacerbation
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Results
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Interim Analysis/Monitoring Plan Data & Safety monitoring board conducted interim analysis every 6 months during the study After 3 years, when all primary and secondary outcome measures were the same between the two groups, the data and safety monitoring board voted to stop the STATCOPE trial due to futility.
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Conclusions Simvastatin 40mg did not affect exacerbation rates for patients with moderate-to-severe COPD Simvastatin also had no effect on lung function or disease- specific quality of life Simvastatin has no role in the prevention of exacerbations in patients with moderate-to-severe COPD
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Author reported limitations Limitations Terminated study after 3 years due to futility Lack of use of an inflammatory marker (CRP or ESR) to screen patients for enrollment in the study Limited to those only with moderate-to-severe COPD
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Critical Appraisal (Strengths/Weaknesses) Strengths Study design Excellent Follow-Up rates Sample size Weaknesses No information provided regarding blinding of investigators (may introduce bias) Self-reported exacerbation events and adherence by subjects
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References Criner GJ et al. Simvastatin for the prevention of exacerbations in moderate-to-severe COPD. N Engl J Med. 2014 Jun 5;370(23):2201-10. doi: 10.1056/NEJMoa1403086. Epub 2014 May 18. Jain, Mukesh K et al. Anti-Inflammatory Effects of Statins: Clinical Evidence and Basic Mechanisms. Nature Reviews Drug Discovery 4, 977-987 2005 December. Keddissi JI, Younis WG, Chbeir EA, Daher NN, Dernaika TA, Kinasewitz GT. The use of statins and lung function in current and former smokers. Chest. 2007 Dec;132(6):1764-71. Epub 2007 Oct 1.
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