Clinical trial · Interventional
A Study for Efficacy of Side-by-side Compared to Stent-in-stent Technique in the Endoscopic Management of Malignant Hilar Biliary Obstruction
A Prospective Randomized Study for Efficacy of Side-by-side Compared to Stent-in-stent Technique in the Endoscopic Management of Malignant Hilar Biliary Obstruction
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Summary
Brief summary (as posted)
Malignant obstructive jaundice is a common complication of advanced stage cholangiocarcinoma, GB cancer, and pancreatic cancer. In biliary stricture by malignancy, biliary drainage with placement of self-expanding metal stent (SEMS) for palliation is the therapy of choice in these patients. On hilar biliary malignant obstruction, bilateral stent used to be inserted. There are two kinds of bilateral metal stent insertion methods in hilar biliary malignant obstruction. (Stent in stent vs. side by side) Previously, two studies was conducted to show the superiority of bilateral metal stent insertion between stent in stent and side by side. Biliary drainage and stent patency was a little superior in side by side than stent in stent. But, complication related with bilateral metal stent was increased in patients with side by side method. Another study showed that there was no significant difference between those bilateral stent insertion methods. The most important concern about side by side method is associated with portal vein thrombosis by bilateral stent diameter. Selection of proper stent insertion method in patients with hilar malignant biliary obstruction is still controversial. The purpose of this study is to investigate the patency of stent and survival of patients in side by side method (6mm sized M type) compared to stent in stent method (10mm sized LCD type) in patient with hilar malignant biliary obstruction.
Conditions
Conditions (5)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| AOV Cancer | — | UNRESOLVED | — |
| Cholangiocarcinoma | Cholangiocarcinoma | ONTOLOGY_EXACT | 0.98 |
| Gallbladder Cancer | Malignant Gallbladder Neoplasm | CURATED_EXACT | 0.92 |
| HCC | — | UNRESOLVED | — |
| Pancreatic Cancer | Malignant Pancreatic Neoplasm | CURATED_EXACT | 0.92 |
Interventions
Interventions (2)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| side by side | Procedure | — | UNRESOLVED |
| stent in stent | Procedure | — | UNRESOLVED |
Design
Arms and outcomes
Arms (2)
- type
- EXPERIMENTAL
- label
- Side by side group
- interventionNames
- Procedure: side by side
- type
- ACTIVE_COMPARATOR
- label
- Stent in stent group
- interventionNames
- Procedure: stent in stent
Primary outcomes (1)
- measure
- Median patency duration
- timeFrame
- 1 year after stent insertion
- description
- Median patency duration from stent insertion date to stent occlusion date or last follow up date if stent is patent
Secondary outcomes (2)
Eligibility
Eligibility (as posted)
- Sex
- All
- Minimum age
- 20 Years
Show eligibility criteria text
Inclusion Criteria: * Pathologically confirmed hilar malignant biliary obstruction or clinically defined malignant biliary obstruction * older than 20 years old Exclusion Criteria: * Operable case * Non-hilar biliary malignant obstruction * Duodenal obstruction * Other cancer except biliary malignancy * uncontrolled infection status * Eastern Cooperative Oncology Group ≥ 3 * No signed informed consent * Failed endoscopic approach to duodenum or biliary tract
References
Publications (2)
- BACKGROUNDLaw R, Baron TH. Bilateral metal stents for hilar biliary obstruction using a 6Fr delivery system: outcomes following bilateral and side-by-side stent deployment. Dig Dis Sci. 2013 Sep;58(9):2667-72. doi: 10.1007/s10620-013-2671-4. Epub 2013 Apr 27. PMID 23625287
- BACKGROUNDKim KM, Lee KH, Chung YH, Shin JU, Lee JK, Lee KT, Shim SG. A comparison of bilateral stenting methods for malignant hilar biliary obstruction. Hepatogastroenterology. 2012 Mar-Apr;59(114):341-6. doi: 10.5754/hge11533. PMID 22353496