Single Plastic Stent Vs. Fully Covered Self-Expanding Metal Stent on Benign Biliary Stricture Secondary to Chronic Pancreatitis

Sponsor
Changhai Hospital
Study ID
NCT06655051
Status
Recruiting
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Conditions

Eligibility Criteria

Sex
ALL
Age
18 Years - N/A
Healthy Volunteers
Not accepted

Interventions

  • endoscopic retrograde biliary drainage (single plastic stent) — DEVICE
    Participants will undergo ERCP. A flexible tube is inserted into the duodenum, crossing the sphincter of Oddi to access the biliary system. And the location, diameter, and length of biliary stricture will be evaluated by injection of contrast media. A single plastic stent is then placed across the biliary stricture, allowing the bile duct to resume drainage. The participants will be observed closely after ERCP and record complications. Imaging evaluation will be conducted 6 months after stenting to confirm spontaneous passage of the biliary duct stent, and the stent will be removed via ERCP if it is still in place.
  • endoscopic retrograde biliary drainage ( fully covered self-expanding metal stent) — DEVICE
    Participants will undergo ERCP. A flexible tube is inserted into the duodenum, crossing the sphincter of Oddi to access the biliary system. And the location, diameter, and length of biliary stricture will be evaluated by injection of contrast media. A fully covered self-expanding metal stent is then placed across the biliary stricture, allowing the bile duct to resume drainage. The participants will be observed closely after ERCP and record complications. Imaging evaluation will be conducted 6 months after stenting to confirm spontaneous passage of the biliary duct stent, and the stent will be removed via ERCP if it is still in place.

Study Details

The goal of this clinical trial is to compare the efficacy and safety of a single plastic stent versus a fully covered self-expanded metal stent in relieving benign biliary stricture secondary to chronic pancreatitis. The main questions it aims to answer is: Whether the efficacy of a single plastic stent is non-inferior to that of a fully covered metal stent in patients with benign biliary stricture secondary to chronic pancreatitis？ Participants will be randomly assigned to receive either a single plastic stent (SPS) placement or fully covered self-expanded metal stent placement treatment for 6 months, and they will be followed up for 18 months.

Key Dates

First listed
Oct 23, 2024
Start date
Apr 30, 2025
Status verified
May 2025
Primary completion
Dec 31, 2030
Completion
Dec 31, 2030

Study Design

Enrollment
134 participants (estimated)
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT

Arms

  • Active Comparator: Fully covered self-expanding metal stent
    A single biliary fcSEMS will be placed under ERCP. During stenting period , if symptoms of biliary obstruction occur due to stent occlusion or migration, ERCP replacement or implantation of a new stent should be performed according to the condition. After 6 months of stenting, imaging evaluation will be performed. ERCP is not needed if the stent undergoes spontaneous complete distal migration and the patient is asymptomatic and has normal liver function. If the stent is visible, ERCP will be performed to remove the stent and the stricture will be evaluated. If stricture persists after 6 months of stenting, a follow-up treatment plan should be developed through multidisciplinary discussion. One month after ERCP, complications will be followed up by telephone. Follow-up after biliary stent removal will be conducted to inquire about symptoms, signs and liver function test results, and to evaluate the recurrence of biliary stricture.
  • Experimental: single plastic stent
    A single biliary plastic stent will be placed under ERCP. During stenting period , if symptoms of biliary obstruction occur due to stent occlusion or migration, ERCP replacement or implantation of a new stent should be performed according to the condition. After 6 months of stenting, imaging evaluation will be performed. ERCP is not needed if the stent undergoes spontaneous complete distal migration and the patient is asymptomatic and has normal liver function. If the stent is visible, ERCP will be performed to remove the stent and the stricture will be evaluated. If stricture persists after 6 months of stenting, a follow-up treatment plan should be developed through multidisciplinary discussion. One month after ERCP, complications will be followed up by telephone. Follow-up after biliary stent removal will be conducted to inquire about symptoms, signs and liver function test results, and to evaluate the recurrence of biliary stricture.

Primary Outcome Measure

Long-term stricture resolution [ Time Frame: 2 years after enrollment ]

Central Contacts

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