Supplementary Material for: Efficacy of Drug Coated Balloon versus Drug Eluting Stent for Patients with De Novo Coronary Artery Disease: A Systematic Review and Meta-Analysis

Objectives: This meta-analysis compared the efficacy and safety of drug coated balloon (DCB) angioplasty with drug eluting stent (DES) for the treatment of de novo coronary artery disease. Methods: Following PRISMA guidelines, we conducted a systematic search of major databases, including Cochrane, MEDLINE, Embase and clinicaltrials.gov, to identify eligible randomized controlled trials (RCTs) comparing DCB and DES. Mantel-Haenszel model was used for dichotomous outcomes. Risk ratios (RR) with 95% confidence intervals (CI) were calculated using a random-effects model using RevMan software. Results: Thirteen RCTs with a total of 4,686 patients were included. The analysis found no significant differences between DCB and DES for all-cause mortality (RR: 1.11, 95% CI: 0.81–1.53, p = 0.51) or myocardial infarction (RR: 0.80, 95% CI: 0.56–1.15, p = 0.23). Similarly, no significant differences were observed for cardiac death (RR: 1.33, 95% CI: 0.86–2.05, p = 0.19), target lesion revascularization (RR: 1.19, 95% CI: 0.64–2.21, p = 0.59), or target vessel revascularization (RR: 1.34, 95% CI: 0.79–2.28, p = 0.28). Conclusion: This meta-analysis demonstrates comparable efficacy and safety outcomes for DCBs and DES in the treatment of de novo coronary artery disease. While DCBs offer a viable alternative, particularly for high-risk patients or those unsuitable for prolonged dual antiplatelet therapy, further large-scale studies are warranted to strengthen these findings and refine clinical recommendations.