Viewing Study NCT00146575



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Study NCT ID: NCT00146575
Status: COMPLETED
Last Update Posted: 2008-01-11
First Post: 2005-09-06

Brief Title: Sirolimus- and Paclitaxel-Eluting Stents for Small Vessels ISAR-SMART-3
Sponsor: Deutsches Herzzentrum Muenchen
Organization: Deutsches Herzzentrum Muenchen

Study Overview

Official Title: Randomized Trial of Paclitaxel-Eluting Stent and Sirolimus-Eluting Stent for Restenosis Reduction in Small Coronary Vessels ISAR-SMART-3
Status: COMPLETED
Status Verified Date: 2008-01
Last Known Status: None
Delayed Posting: No
If Stopped, Why?: Not Stopped
Has Expanded Access: False
If Expanded Access, NCT#: N/A
Has Expanded Access, NCT# Status: N/A
Acronym: None
Brief Summary: The purpose of this study is to compare the efficacy of paclitaxel- and sirolimus-eluting stents to prevent re-blockage of small coronary arteries
Detailed Description: Although use of bare metal stents has reduced restenosis in coronary vessels with a diameter 3 mm when compared to plain balloon angioplasty most of the dedicated randomized studies have failed to show a beneficial effect of stent over balloon angioplasty in vessels with a small reference diameter In spite of refinements in stent design and periprocedural therapy the risk of restenosis after bare metal stenting in this setting remains elevated Nowadays percutaneous coronary interventions in small vessels account for 35-67 of interventional procedures performed in patients with coronary artery disease and when bare metal stents are used restenosis will be detected in more than 35 of the treated patients and a repeat revascularization procedure will be needed in more than 20 them Several randomized trials have shown that stents eluting antiproliferative drugs with sirolimus- and paclitaxel-eluting stents the only devices approved for commercial use so far are highly effective in reducing restenosis when compared with bare metal stents Subgroup analysis from these trials have shown that the efficacy of either sirolimus stent or paclitaxel stent extends also to those patients who undergo coronary stenting in small sized vessels In addition three randomized studies of sirolimus-eluting stents and bare metal stents used in coronary arteries smaller than 3 mm have reported 82-96 reduction in the relative risk of restenosis with the sirolimus stents thus providing convincing evidence on the role of drug-eluting stents as an effective treatment strategy for coronary arteries with a small reference diameter

At present there is no direct evidence on the relative efficacy in the prevention of restenosis of sirolimus stent and paclitaxel stent after implantation in small coronary vessels Selecting the most effective device for this particularly high-risk category that accounts for a large proportion of percutaneous coronary interventions may have important clinical and economic implications Comparisons of data from subgroup analysis of different trials have suggested that there might be differences in the efficacy to prevent restenosis between sirolimus and paclitaxel stents However indirect comparisons are subject to many limitations and consequently conclusions based on their results may be erroneous Therefore reliable guidance on the selection of the most effective drug-eluting stent for treatment of lesions in coronary vessels with a small reference diameter could be provided only from a head-to-head comparison between these devices

Comparison

Sirolimus-eluting stent and paclitaxel-eluting stent in patients undergoing stenting in small coronary vessels

Study Oversight

Has Oversight DMC: None
Is a FDA Regulated Drug?: None
Is a FDA Regulated Device?: None
Is an Unapproved Device?: None
Is a PPSD?: None
Is a US Export?: None
Is an FDA AA801 Violation?: None