Table 2: Main clinical studies that evaluated therapy with PCSK9i.

Study

FOURIER (2017)

ODYSSEY outcomes (2018)

Intervention

and design

Evolocumab (either 140 mg every 2 weeks or 420 mg monthly) vs placebo

Alirocumab subcutaneously 75 mg every 2 weeks vs placebo

 

1:1 randomization with 69% px in high-intensity therapy, 31% moderate or low-intensity, and 5% ezetimibe

1:1 randomization with 89% px in high-intensity therapy, 8% moderate or low-intensity, and 3% ezetimibe

Patient

population

27,564 patients with atherosclerotic cardiovascular disease and LDL cholesterol levels of 70 mg/dL or higher who were receiving statin therapy

18,924 patients who had an acute coronary syndrome 1 to 12 months earlier, who were previously under optimal tolerated treatment with high-intensity statins, but with serum levels of non-HDL cholesterol of at least 100 mg/dL, apolipoprotein B of at least 80 mg/dL, or LDL cholesterol of at least 70 mg/dL

Duration

2.2 years

2.8 years

Median

cholesterol

baseline value

92 mg/dL

92 ± 31 mg per deciliter

Primary

endpoint

Composite of cardiovascular death, myocardial infarction, stroke, unstable angina that requires hospitalization, or coronary revascularization

Composite of cardiovascular death, non-fatal myocardial infarction, fatal or nonfatal ischemic stroke, angina that requires hospitalization

Results

Evolocumab treatment significantly reduced the risk of the primary end point from 11.3% to 9.8% (hazard ratio 0.85; 95% CI; p < 0.001)

Alirocumab treatment reduced the risk of composite primary end-point event from 11.1% to 9.5% (HR 0.85; 95% CI, 0.78 to 0.93; p < 0.001)