Effects and Safety of Statin and Ezetimibe Combination Therapy in Patients with Chronic Kidney Disease: A Systematic Review and Meta‐Analysis

The efficacy and safety of statin and ezetimibe combination therapy in patients with chronic kidney disease (CKD) remains unclear. To assess the effect of statin and ezetimibe combination therapy on controlling lipid profiles and reducing cardiovascular events in patients with CKD, we conducted a systematic review and meta‐analysis. We selected randomized controlled trials comparing this combination therapy with statin monotherapy or placebo in patients with CKD from the PubMed, Embase, and Cochrane Central Register of Controlled Trials databases published before September 1, 2018 on the Internet. Eight articles on seven studies, with a total of 14,016 patients with CKD, were selected from 412 full‐text articles. Statin and ezetimibe combination therapy had beneficial effects on serum total cholesterol (weighted mean difference (WMD) −20.31 mg/dL, 95% confidence interval (CI), −26.87 to −13.75 mg/dL, P < 0.001), low‐density lipoprotein cholesterol (WMD −17.22 mg/dL, 95% CI, −18.93 to −15.51 mg/dL, P < 0.001), and triglycerides (WMD −15.08 mg/dL, 95% CI, −23.41 to −6.75 mg/dL, P < 0.001) compared with statin monotherapy. Statin and ezetimibe combination therapy significantly reduced all‐cause mortality and major adverse cardiovascular events (risk ratio 0.86, 95% CI, 0.77 to 0.97, P = 0.01). The incidence of adverse events was low, with no significant difference between statin and ezetimibe combination therapy and statin monotherapy. In conclusion, the statin and ezetimibe combination therapy significantly improved serum lipid profiles and reduced risks of all‐cause deaths and major adverse cardiovascular events compared with the control group in patients with CKD.