What is the efficacy of statin therapy for the treatment of unstable angina?

Updated: Oct 01, 2020
  • Author: Walter Tan, MD, MS; Chief Editor: Eric H Yang, MD  more...
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The MIRACL trial (including 3086 patients with unstable angina randomized to high-dose atorvastatin vs placebo) demonstrated that therapy with atorvastatin resulted in a reduction in the primary endpoint (ie, death, MI, resuscitated cardiac arrest, severe recurrent symptomatic ischemia) from 17.4% to 14.8% within a relatively short period (4 months) as compared with placebo. [68] The benefit was mostly for recurrent symptomatic ischemia with objective evidence and requiring emergency rehospitalization (from 8.4% to 6.2%). [68]

The PROVE-IT TIMI-22 trial demonstrated a benefit from statin therapy even in patients with ACS presenting with relatively low serum low-density lipoprotein cholesterol (LDL-C) levels (< 100 mg/dL), suggesting that the target LDL-C level should be less than 80 mg/dL in these patients. [69]

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