Effect of statins and non-statin LDL-lowering medications on cardiovascular outcomes in secondary prevention: a meta-analysis of randomized trials

Eur Heart JPublished Systematic review and meta-analysis of randomised trials

Pooled resultResult — go to the resultRelative risk 0.81 95% CI 0.77–0.86

Authors' conclusion

Reduction of MVE is proportional to the magnitude of LDL-C lowering across a broad spectrum of on-treatment levels in secondary prevention. Statin intensification and add-on treatment with PCSK9 inhibitors or ezetimibe are associated with significant reduction of cardiovascular morbidity in this very high-risk population.

Study context

Population
Secondary prevention; RCTs with >500 patients followed ≥1 year
Participants
152,507 participants · 19 trials
Comparison
More-intensive vs less-intensive LDL-C lowering
  • More-intensiven = 76,678
  • Less-intensiven = 75,829reference
Outcome
Major vascular events (MVEs)
Methodological detailsrandom-effects models
  • Random-effects models

Pooled result

As reported in the abstract

Relative risk

0.81

95% CI 0.77–0.86

More-intensive vs Less-intensive
RR 0.81 (95% CI 0.77–0.86)

Further pooled results

OutcomeRR (95% CI)
MVEs, by type of more-intensive treatment (subgroup)More-intensive vs Less-intensive · statins0.81 (0.76–0.86)
MVEs, by type of more-intensive treatment (subgroup)More-intensive vs Less-intensive · non-statin agents (PCSK9 inhibitors and ezetimibe)0.85 (0.77–0.94)
  • Major vascular events (MVEs), by type of more-intensive treatment (subgroup): interaction P = 0.38

MVE per 1.0 mmol/L LDL-C reduction

Relative decrease in MVE per 1.0 mmol/L LDL-C reduction
19%

MVEs by baseline and achieved LDL-C reduction

Risk reduction greater across higher baseline levels and greater achieved reductions of LDL-C

Death, CV death, MI, stroke, coronary revascularization

All favoured more-intensive treatment

Original publication

Effect of statins and non-statin LDL-lowering medications on cardiovascular outcomes in secondary prevention: a meta-analysis of randomized trials. Eur Heart J. Published 23 October 2017. doi:10.1093/eurheartj/ehx566

Summarised from the published abstract; every number is checked against it

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