Comparative analysis of the efficacy of low- and moderate-intensity statins in Korea

Area of Science:

• Cardiology
• Pharmacology
• Public Health

Background:

• The American College of Cardiology/American Heart Association (ACC/AHA) guidelines for cholesterol management may not be directly applicable to Asian populations, including Koreans, due to a lack of representation in pivotal clinical trials.
• This limitation necessitates an evaluation of statin efficacy within the Korean demographic.

Purpose of the Study:

• To assess the effectiveness of various statin regimens in lowering low-density lipoprotein cholesterol (LDL-C) in Korean patients.
• To compare LDL-C reduction and target achievement rates based on baseline LDL-C levels and specific statin treatments.

Main Methods:

• Retrospective analysis of data from Seoul St. Mary's hospital (2010-2012) for 2,349 patients.
• Statins were grouped (A, B, C) based on similar LDL-C lowering effects.
• Percent change in LDL-C at 3 and 6 months, and proportion of patients achieving LDL-C < 100 mg/dL were analyzed against baseline LDL-C categories (low, medium, high).

Main Results:

• Most statins showed efficacy at 3 months, with further reductions at 6 months.
• Group A (atorvastatin 20 mg, rosuvastatin 10 mg) achieved ~45% LDL-C reduction; Group B (moderate-intensity statins) achieved 35-37%.
• Patients with baseline LDL-C ≥ 130 mg/dL more frequently achieved LDL-C < 100 mg/dL with atorvastatin 20 mg and rosuvastatin 10 mg.

Conclusions:

• The ACC/AHA guidelines may require adaptation for Korean patients due to observed LDL-C lowering effects and target achievement rates.
• Korean treatment guidelines should consider statins with potentially lower potency or different dosing strategies for this population.
• Further research on appropriate statin dosages in Asian populations is recommended.