Bile Duct Stricture Clinical Trial
Official title:
Prospective Evaluation of Stent Patency in Patients With Benign Biliary Obstruction of the Wing Biliary Stent (Viaduct™)
Verified date | April 2013 |
Source | Stanford University |
Contact | n/a |
Is FDA regulated | No |
Health authority | United States: Institutional Review Board |
Study type | Interventional |
Endoscopic retrograde cholangiopancreatography (ERCP) with plastic stent placement for
resolution of biliary obstruction has been the method of choice for many years. However,
stent clogging/obstruction is a major limitation in the management of biliary obstruction.
Studies have shown that the conventional tubular type polyethylene stents (CS) with side
holes accumulate significant sludge and their mean patency is approximately 90 days.
Thus patients requiring longer term stenting need to undergo stent exchanges every 2-3
months.
Recently, a stent with a star-shaped cross-section has been developed for biliary
applications. This FDA approved biliary Wing stent (WS) (ViaDuct™) is a novel plastic
biliary stent that lacks a lumen, and is designed to allow bile to flow on the outside of
the stent. The stent which is star shaped in cross section, channels fluid along its winged
perimeter. It has been proposed that the winged stent design with a lack of central lumen
obviates the risk of luminal occlusion and that the risk of occlusion, given the presence of
multiple external drainage channels, is smaller. Longer term biliary drainage without the
need for stent exchange should therefore be possible with these stents.
The primary aim of this study is to prospectively evaluate the patency rate of the WS up to
90 days in 50 patients with biliary obstruction due to stones or benign strictures.
Status | Recruiting |
Enrollment | 50 |
Est. completion date | March 2014 |
Est. primary completion date | March 2014 |
Accepts healthy volunteers | No |
Gender | Both |
Age group | 18 Years and older |
Eligibility |
Inclusion Criteria: - All patients age 18 or older referred for ERCP for biliary obstruction from stones or benign strictures that have been confirmed based on clinical, laboratory and imaging findings, with an indication for plastic stent placement. One or more biliary stents may be placed during the procedure depending on the indication such as a biliary stricture necessitating multiple stent placements for dilation as the standard of care. - Expected patient survival of at least 90 days - High likelihood of patient follow-up - Patient is able to give a written informed consent - Patient is willing and able to comply with the study procedures. Exclusion Criteria: - Patients with cholangitis - Patients with bile leak - Pregnant patients - Patients with any contraindication to endoscopic procedure - Participation in another investigational study that may directly or indirectly affect the results of this study within 30 days prior to the initial visit - Patients with malignant biliary strictures |
Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment
Country | Name | City | State |
---|---|---|---|
United States | Stanford University Hospital | Palo Alto | California |
Lead Sponsor | Collaborator |
---|---|
Stanford University | GI Supply |
United States,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Biliary stent patency | At 90 days after stent placement | No | |
Secondary | Liver Function Test improvement | 90 days | No |
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