Comparison Between Two Methods of Bilateral Stenting for Malignant Hilar Obstruction

This study has been withdrawn prior to enrollment.
(Patients enrollment problem)
Information provided by (Responsible Party):
Kwang Hyuck Lee, Samsung Medical Center Identifier:
First received: June 12, 2012
Last updated: April 24, 2016
Last verified: April 2016

Internal biliary drainage using stent is used for malignant hilar obstruction such as cholangiocarcinoma, hepatocellular carcinoma and other malignancy including metastasis.

Bilateral drainage is more physiologic and have more long patency than unilateral drainage.

There are two methods of bilateral drainage: Y-stent and side by side.

However there are no clinical data about comparing the effectiveness of these two methods.

Therefore the investigators want to compare the clinical outcomes of two methods:

Y-stent and side by side.

Condition Intervention Phase
Bile Duct Neoplasm
Obstructive Jaundice
Procedure: parallel stent
Device: Y-stent (BONASTENT M-Hilar)
Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Parallel Assignment
Masking: Single Blind (Subject)
Primary Purpose: Treatment
Official Title: Comparison Between Two Methods of Bilateral Stenting for Malignant Hilar Obstruction

Further study details as provided by Samsung Medical Center:

Primary Outcome Measures:
  • The time taken to insert bilateral stent [ Time Frame: After the ERCP procedure ] [ Designated as safety issue: Yes ]

Enrollment: 0
Study Start Date: August 2011
Estimated Study Completion Date: August 2013
Estimated Primary Completion Date: August 2013 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: parallel stent
parallel stent insertion group
Procedure: parallel stent
bilateral parallel stent insertion (right and left side)
Other Name: bilateral pig tail plastic stent
Active Comparator: Y-stent
Y-stent insertion group
Device: Y-stent (BONASTENT M-Hilar)
Bilateral Y-stent insertion (stent in stent type)
Other Name: BONASTENT M-Hilar, Standard Sci Tech Inc, Seoul, South Korea


Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • age ≥ 18 years
  • patient who have obstructive jaundice (bilirubin > 2.0mg/dl) due to hilar malignancy

Exclusion Criteria:

  • patients with endoscopic retrograde cholangiogram is not possible
  • bleeding tendency (PT INR > 1.5, platelet < 50,000)
  • poor general condition (ECOG 3-4) or cardiopulmonary deterioration
  • pregnancy
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Please refer to this study by its identifier: NCT01622803

Korea, Republic of
Samsung Medical Center
Seoul, Korea, Republic of, 135-710
Sponsors and Collaborators
Samsung Medical Center
Study Director: Kwang hyuck Lee, MD, phD Division of Gastroenterology, Department of Internal Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine
  More Information

Responsible Party: Kwang Hyuck Lee, Assistant Professor of Medicine, Samsung Medical Center Identifier: NCT01622803     History of Changes
Other Study ID Numbers: KH0LEE 
Study First Received: June 12, 2012
Last Updated: April 24, 2016
Health Authority: South Korea: Institutional Review Board

Additional relevant MeSH terms:
Bile Duct Neoplasms
Jaundice, Obstructive
Bile Duct Diseases
Biliary Tract Diseases
Biliary Tract Neoplasms
Digestive System Diseases
Digestive System Neoplasms
Neoplasms by Site
Pathologic Processes
Signs and Symptoms
Skin Manifestations processed this record on May 26, 2016