alexa Adjusted indirect comparison of intracoronary drug-eluting stents: evidence from a metaanalysis of randomized bare-metal-stent-controlled trials.
Medicine

Medicine

Translational Medicine

Author(s): BiondiZoccai GG, Agostoni P, Abbate A, Testa L, Burzotta F,

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Abstract AIMS: Drug-eluting stents (DES) have been recently investigated, with favorable data for many devices, but comparative data are lacking. We thus performed an adjusted indirect comparison metaanalysis of DES. METHODS: Randomized trials comparing DES vs. bare-metal stents (BMS) were systematically searched, and random effect odds ratios (OR) were computed for target lesion revascularization (TLR) and binary in-stent restenosis rate (BRR) at 6-12 months. We then generated interaction OR for the comparison of different DES. RESULTS: We pooled data from 17 studies (allocating 3048 patients to BMS and 3392 to nine different DES). Indirect head-to-head comparison of sirolimus-eluting Cypher (N=1007) vs. polymeric paclitaxel-eluting Taxus (N=959) showed nonsignificant differences in TLR [OR=0.8 (0.5-1.4), p=0.45] but significant reductions in BRR favoring Cypher [OR=0.3 (0.1-0.6), p<0.001]. Everolimus-eluting stents appeared noninferior to Cypher or Taxus (p>0.50 for both TLR and BRR). Actinomycin-, mycophenolate-, and apolymeric paclitaxel-eluting stents (PES) all proved significantly worse than Cypher or Taxus for TLR or BRR. CONCLUSION: Notwithstanding its inherent limitations, the present metaanalysis confirms the effectiveness of both Cypher and Taxus, supports the promising role of everolimus-eluting stents, and suggests the significant inferiority of most other devices. These post hoc findings, albeit intriguing, await prospective confirmation. This article was published in Int J Cardiol and referenced in Translational Medicine

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