Covered vs. Uncovered SEMS for Occluded Biliary Metal Stents

Status Completed

Clinical Trial Summary

Endoscopic retrograde biliary drainage (ERBD) is now widely accepted as the standard intervention for the relief of obstructive jaundice in patients with unresectable malignant biliary obstruction. Although plastic stents (PSs) were developed earlier, self-expandable metal stents (SEMSs) are now used widely as the initial choice for ERBD in this setting, as SEMSs offer longer patency.However, SEMSs do become occluded in some patients. There are a limited number of reports on the management of occluded SEMS with various results. The aim of this study is to compare the efficacy of ComVi stents SEMSs with uncovered SEMS in subsequent ERBD after the occlusion of initial SEMSs.

Clinical Trial Description

Endoscopic placement of self-expandable metallic stents (SEMSs) is the mainstay of palliative measures for alleviating obstructive jaundice secondary to advanced cholangiocarcinoma. Previous meta-analysis showed no significant difference in stent patency between covered and uncovered SEMS, which are currently available. However, information on secondary SEMS insertion is still scarce, and there has been no prospective trial comparing efficacy of secondary stenting between covered and uncovered SEMS for the management of occluded metal stent in malignant biliary obstruction. Previously, only two small retrospective studies addressed this issue. Given the absence of prospective trial on re-intervention for occluded SEMS in malignant biliary obstruction, we aimed to prospectively compare the efficacies and complication rates of secondary ComVi stent (cSEMS) and uSEMS for the management of such condition. ;

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Single Blind (Subject), Primary Purpose: Treatment

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT01315522
Study type	Interventional
Source	Seoul National University Hospital
Contact
Status	Completed
Phase	Phase 4
Start date	June 2010
Completion date	April 2015

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