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Ruth Campbell BSc (Pharm) Interior Health Authority Provincial Academic Detailing Service. Statins and Cardiovascular Disease. It is a matter of perspective. R. AMADA INN. When we look with care:. Benefit is most apparent in the secondary population
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Ruth Campbell BSc (Pharm) Interior Health Authority Provincial Academic Detailing Service Statins and Cardiovascular Disease
It is a matter of perspective R AMADA INN
When we look with care: Benefit is most apparent in the secondary population Primary population – in terms of MCE reduction • High risk men benefit • Women do not • Elderly do not We lack evidence to “treat to target”
Why the confusion • Interpretation of relative risk reduction as being the most important thing • Composite Endpoints • Calculating risk and inferring statin benefit
Our drug reduces your risk by 50% Drooping Ear Lobe disease disappears overnight in 50% of cases
Primary Composite Outcome MI, Coronary Heart Disease Death, All Cause mortality Stroke Coronary revascularization and Hospitalization for unstable Angina Is the benefit illusion? Should we care?
PRIMARY OUTCOME = combination of 5 different events CHD Death, MI, Stroke and Revascularization and Hospitilization Canon NEJM 2004:350:1495-504
FATAL EVENTS Canon NEJM 2004:350:1495-504
NON-FATAL EVENTS Canon NEJM 2004:350:1495-504
CLINICIAN-DRIVEN ENDPOINTS (procedures, medical decisions) “Softer outcomes” Canon NEJM 2004:350:1495-504
Statistical significance is reached only in coronary revascularization and hospitalization for unstable angina Canon NEJM 2004:350:1495-504
FATAL EVENTS Canon NEJM 2004:350:1495-504
What is the risk? Run In Periods eliminate those at risk Those studied less likely to be at risk Harm reporting – illusions in statistics
Risk Myopathies Incident diabetes Neuropathies Hemmorhagic stroke Cancer? Confusion?
Secondary Prevention - What is the benefit? Treating 28 patients for 5 years prevents one Major Coronary Event
A reduction in all cause mortality has not been documented in women
Lack of Evidence for benefit in women No Statistically significant benefit for: Non fatal MI Coronary Heart Disease death All Cause Mortality
“ Conclusion—JUPITER demonstrated that in primary prevention rosuvastatin reduced CVD events in women with a relative risk reduction similar to that in men, a finding supported by meta-analysis of primary prevention statin trials.”
Evidence for benefit in women? No Statistically significant benefit for: • Non fatal MI • Coronary Heart Disease death • All Cause Mortality Statistically Significant improvement in: • hospitalization for unstable angina • coronary revascularization
Prosper? “Interpretation: Pravastatin given for 3 years reduced the risk of coronary disease in elderly individuals. PROSPER therefore extends to elderly individuals the treatment strategy currently used in middle aged people”
Mean age 75 52% women Prior CVD 44% SBP 155 DBP 84 TC 5.7 HDL-C 1.3 LDL-C 3.8 Smokers 27% Shepherd Lancet 2002;360:1623-30
n = 26 K Cochrane Database of Systematic Reviews 2009, Issue 2, CD003160
Calculate Risk – determining the benefit of statins for men at risk Use the right tool for the job
FRS-CHD www.framinghamheartstudy.org/risk/index.html
FRS-CVD www.framinghamheartstudy.org/risk/index.html
iPhone, BB, android apps • Qx Calculate • Framingham Risk Score (ATP-III) • Framingham General Cardiovascular Risk predictor – predicts cardiovascular risk
Fatal or non-fatal MI Haffner NEJM 1998;339:229-34
Fatal or non-fatal MI BulugahapitiyaDiabet Med 2009;26:142-8
Non-diabetic, • primary prevention • 8% • Diabetic, • primary prevention • 12% • Non-diabetic, • secondary prevention • 24% CTT Lancet 2008;131:117-25
Non-diabetic, • primary prevention • 8% • Diabetic, • primary prevention • 12% • Non-diabetic, • secondary prevention • 24% CTT Lancet 2008;131:117-25
Non-diabetic, • primary prevention • 8% • Diabetic, • primary prevention • 12% • Non-diabetic, • secondary prevention • 24% CTT Lancet 2008;31:117-25