- At least 2 months statin monotherapy with low to moderate dose (atorvastatin ≤20mg q.d. or rosuvastatin≤10mg q.d. or simvastatin≤40mg q.d. or pravastatin≤40mg q.d.or pitavastatin≤2mg q.d or fluvastatin≤80mg q.d.or lovastatin≤40mg q.d) prior to enrollemnt and plan to continue the same type and dose of statin.