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Final 5-Year Results in Randomized Japanese Patients Implanted With a Thin-Strut, Bioabsorbable, Polymer-Coated, Everolimus-Eluting SYNERGY Stent (From the EVOLVE II Study).

ABSTRACT: Background: SYNERGY is a thin-strut, platinum-chromium metal alloy stent with an ultrathin abluminal everolimus-eluting bioabsorbable polymer. EVOLVE II was a global randomized controlled trial that enrolled 1,684 patients treated with either a SYNERGY or durable polymer PROMUS Element Plus (PE+) everolimus-eluting stent, including 155 patients from Japanese sites. This substudy analyzed 5-year clinical outcomes in the Japanese and non-Japanese cohorts. Methods?and?Results: Patients aged ?18 years with ?3 native coronary artery lesions (reference vessel diameter ?2.25-?4.00 mm; length ?34 mm) in ?2 major vessels were randomized 1 : 1 to receive either SYNERGY (n=74 patients in Japan) or PE+ (n=81 patients in Japan). Five-year target lesion failure (TLF) was observed in 8.3% SYNERGY- and 11.2% PE+-treated patients (P=0.54). There were no cardiac deaths, and rates of target lesion revascularization and myocardial infarction were comparable between treatment arms. One patient in the SYNERGY arm experienced a very late definite stent thrombosis (ST); no ST occurred in the PE+ arm (P=0.30). Despite differences in baseline clinical and lesion characteristics, the 5-year TLF rates were not significantly different in SYNERGY-treated patients either in (8.3%) or outside (14.8%) Japan (P=0.14). Conclusions: In Japanese patients with coronary artery disease, SYNERGY showed comparable efficacy to PE+, with low rates of adverse events over 5 years. Similarly, 5-year clinical outcomes were favorable in Japanese vs. non-Japanese patients implanted with SYNERGY.

SUBMITTER: Kimura T

PROVIDER: S-EPMC7939784 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature

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Final 5-Year Results in Randomized Japanese Patients Implanted With a Thin-Strut, Bioabsorbable, Polymer-Coated, Everolimus-Eluting SYNERGY Stent (From the EVOLVE II Study).

Kimura Takeshi T Saito Shigeru S Ando Kenji K Ito Yoshiaki Y Kozuma Ken K Yajima Junji J Nakamura Masato M Hagiwara Nobuhisa N Yasuda Satoshi S Fukamachi Daisuke D Shinke Toshiro T Ueno Takafumi T Allocco Dominic J DJ

Circulation reports 20201211 1

Background: SYNERGY is a thin-strut, platinum-chromium metal alloy stent with an ultrathin abluminal everolimus-eluting bioabsorbable polymer. EVOLVE II was a global randomized controlled trial that enrolled 1,684 patients treated with either a SYNERGY or durable polymer PROMUS Element Plus (PE+) everolimus-eluting stent, including 155 patients from Japanese sites. This substudy analyzed 5-year clinical outcomes in the Japanese and non-Japanese cohorts. Methods and Results:</ ...[more]

PMID: 33693285

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Project description:BACKGROUND:No data are available on the long-term performance of ultrathin strut biodegradable polymer sirolimus-eluting stents (BP-SES). We reported 2-year clinical outcomes of the BIOSCIENCE (Ultrathin Strut Biodegradable Polymer Sirolimus-Eluting Stent Versus Durable Polymer Everolimus-Eluting Stent for Percutaneous Coronary Revascularisation) trial, which compared BP-SES with durable-polymer everolimus-eluting stents (DP-EES) in patients undergoing percutaneous coronary intervention. METHODS AND RESULTS:A total of 2119 patients with minimal exclusion criteria were assigned to treatment with BP-SES (n=1063) or DP-EES (n=1056). Follow-up at 2 years was available for 2048 patients (97%). The primary end point was target-lesion failure, a composite of cardiac death, target-vessel myocardial infarction, or clinically indicated target-lesion revascularization. At 2 years, target-lesion failure occurred in 107 patients (10.5%) in the BP-SES arm and 107 patients (10.4%) in the DP-EES arm (risk ratio [RR] 1.00, 95% CI 0.77-1.31, P=0.979). There were no significant differences between BP-SES and DP-EES with respect to cardiac death (RR 1.01, 95% CI 0.62-1.63, P=0.984), target-vessel myocardial infarction (RR 0.91, 95% CI 0.60-1.39, P=0.669), target-lesion revascularization (RR 1.17, 95% CI 0.81-1.71, P=0.403), and definite stent thrombosis (RR 1.38, 95% CI 0.56-3.44, P=0.485). There were 2 cases (0.2%) of definite very late stent thrombosis in the BP-SES arm and 4 cases (0.4%) in the DP-EES arm (P=0.423). In the prespecified subgroup of patients with ST-segment elevation myocardial infarction, BP-SES was associated with a lower risk of target-lesion failure compared with DP-EES (RR 0.48, 95% CI 0.23-0.99, P=0.043, Pinteraction=0.026). CONCLUSIONS:Comparable safety and efficacy profiles of BP-SES and DP-EES were maintained throughout 2 years of follow-up. CLINICAL TRIAL REGISTRATION:URL: https://www.clinicaltrials.gov. Unique identifier: NCT01443104.

Project description:AimsPatients with ST-segment elevation myocardial infarction (STEMI) feature thrombus-rich lesions with large necrotic core, which are usually associated with delayed arterial healing and impaired stent-related outcomes. The use of bioresorbable vascular scaffolds (Absorb) has the potential to overcome these limitations owing to restoration of native vessel lumen and physiology at long term. The purpose of this randomized trial was to compare the arterial healing response at short term, as a surrogate for safety and efficacy, between the Absorb and the metallic everolimus-eluting stent (EES) in patients with STEMI.Methods and resultsABSORB-STEMI TROFI II was a multicentre, single-blind, non-inferiority, randomized controlled trial. Patients with STEMI who underwent primary percutaneous coronary intervention were randomly allocated 1:1 to treatment with the Absorb or EES. The primary endpoint was the 6-month optical frequency domain imaging healing score (HS) based on the presence of uncovered and/or malapposed stent struts and intraluminal filling defects. Main secondary endpoint included the device-oriented composite endpoint (DOCE) according to the Academic Research Consortium definition. Between 06 January 2014 and 21 September 2014, 191 patients (Absorb [n = 95] or EES [n = 96]; mean age 58.6 years old; 17.8% females) were enrolled at eight centres. At 6 months, HS was lower in the Absorb arm when compared with EES arm [1.74 (2.39) vs. 2.80 (4.44); difference (90% CI) -1.06 (-1.96, -0.16); Pnon-inferiority < 0.001]. Device-oriented composite endpoint was also comparably low between groups (1.1% Absorb vs. 0% EES). One case of definite subacute stent thrombosis occurred in the Absorb arm (1.1% vs. 0% EES; P = ns).ConclusionStenting of culprit lesions with Absorb in the setting of STEMI resulted in a nearly complete arterial healing which was comparable with that of metallic EES at 6 months. These findings provide the basis for further exploration in clinically oriented outcome trials.

Dataset Information

Final 5-Year Results in Randomized Japanese Patients Implanted With a Thin-Strut, Bioabsorbable, Polymer-Coated, Everolimus-Eluting SYNERGY Stent (From the EVOLVE II Study).

Publications

Final 5-Year Results in Randomized Japanese Patients Implanted With a Thin-Strut, Bioabsorbable, Polymer-Coated, Everolimus-Eluting SYNERGY Stent (From the EVOLVE II Study).

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