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Triple Versus Dual Antiplatelet Therapy After ABT578-Eluting Stent

2014-08-27 03:33:54 | BioPortfolio

Summary

To evaluate whether the cilostazol reduce neointimal hyperplasia after ZES (Zotarolimus-eluting stents) implantation, the investigators performed double-blind,randomized, multicenter, prospective study compared triple antiplatelet therapy (aspirin plus clopidogrel plus cilostazol) and dual antiplatelet therapy (aspirin plus clopidogrel) for 8 months in patients with long coronary lesion treated with ZES.

Description

Use of drug-eluting stent (DES) has reduced the incidence of restenosis rate and the need for repeat revascularization compared to using bare metal stents. DES implantation also significantly reduced the angiographic restenosis in patients with long coronary lesions.However, although the use of DES has decreased the effect of lesion length on restenosis, the restenosis after DES implantation of long coronary lesions remain at a higher risk of restenosis.

Cilostazol, a phosphodiesterase III inhibitor, has been known to reduce smooth muscle proliferation and intimal hyperplasia after endothelial injury and restenosis after balloon angioplasty and bare-metal stent (BMS) implantation when compared with aspirin and clopidogrel or ticlopidine. Recently, the impact of 6-month cilostazol treatment in addition to aspirin and clopidogrel on neointimal hyperplasia after sirolimus-(SES) or paclitaxel-eluting stent (PES) implantation for long-coronary lesions has been evaluated in our institution. It reported that cilostazol treatment achieved primary end point (in-stent late loss) and reduced need of target lesion revascularization without significant adverse drug-side effects with open-label design, which suggest that 6-month treatment of cilostazol effectively inhibits the neointimal hyperplasia after DES implantation and can be safely applied to the patients or lesions with higher risk of restenosis such as diabetes and long lesions.However, our study was done in unblinded manner and might underestimate the angiographic results due to relatively short-term follow-up angiographic follow-up(6-month.

Recently commercially available new-DES, zotarolimus-eluting stent (ZES) demonstrated significant reduction of restenosis and cardiac events during 9-month. However, it has not been tested that 8-month treatment of cilostazol also effectively inhibits the neointimal hyperplasia after ZES implantation in patients with long coronary lesions. Therefore, to evaluate whether the cilostazol reduce neointimal hyperplasia after ZES implantation, the investigators performed double-blind, randomized, multicenter, prospective study compared triple antiplatelet therapy (aspirin plus clopidogrel plus cilostazol) and dual antiplatelet therapy (aspirin plus clopidogrel) for 8 months in patients with long coronary lesion treated with ZES.

Study Design

Allocation: Randomized, Control: Placebo Control, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Treatment

Conditions

Coronary Artery Disease

Intervention

cilostazol, placebo

Location

Soonchunhyang University Bucheon Hospital
Bucheon
Korea, Republic of
138-736

Status

Completed

Source

CardioVascular Research Foundation, Korea

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:33:54-0400

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