Safety and effectiveness of statins in hospitalized patients with COVID-19: Systematic review and collaborative...

Statins may impact COVID-19 outcomes through lipid-mediated and lipid-independent pathways. However, the clinical impact of statin therapy among hospitalized patients with COVID-19 remains unclear due to the limited power of existing randomized controlled trials (RCTs).

A systematic search of PubMed, Embase, and clinicaltrials.gov was conducted through July 17th, 2024. RCTs were included if they compared statin therapy to control (placebo or standard care) in hospitalized COVID-19 patients and enrolled at least 250 randomized participants. Studies with co-treatment were considered in sensitivity analyses. The primary effectiveness outcome was 30-day all-cause death. The main safety outcomes were myopathy and rise in liver enzymes.

Three RCTs were included in the main analysis (3882 statin-naive patients, 33.7 % female, average follow-up duration 37 days). Compared with control, statin therapy was associated with reduced all-cause death (20.9 % vs. 23.8 %; odds ratio [OR]: 0.82, 95 % confidence interval [CI] 0.70-0.96; P = 0.01), with a small but significant increase in myopathy (0.6 % vs. 0 %; risk difference: 0.00, 95 % CI -0.00; 0.01), and no significant difference in liver enzyme abnormalities (1.0 % vs. 1.4 %; OR 1.00, 95 % CI: 0.25-3.99). A sensitivity analysis including two additional RCTs that included randomized co-treatments yielded similar findings. There were no significant interactions for effectiveness by disease severity (critically vs. non-critically ill, P = 0.38) or sex (males vs. females, P = 0.83).

Among hospitalized patients with COVID-19, statin therapy was associated with a significant reduction in 30-day all-cause death compared with control and exhibited an excellent safety profile.

This study is registered in PROSPERO (CRD42023478764).