Endoscopic Treatment of Biliary Stricture Caused by Chronic Pancreatitis
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|ClinicalTrials.gov Identifier: NCT01085747|
Recruitment Status : Unknown
Verified August 2013 by Halttunen Jorma, Helsinki University Central Hospital.
Recruitment status was: Active, not recruiting
First Posted : March 12, 2010
Last Update Posted : August 15, 2013
|Condition or disease|
|Biliary Stricture Chronic Pancreatitis|
All consecutive patients admitted for ERCP and treated for benign biliary stricture caused by chronic pancreatitis are prospectively enrolled in the study.
At the initial ERCP, an endoscopic sphincterotomy will be performed and one 10 Fr plastic stent will be inserted for the initial treatment of cholestasis in all patients.Pancreatic stent will be inserted if indicated. One to three months after the initial ERCP the patients will be randomized into two groups: those who receive cSEMS and those who receive multiple plastic stents into the bile duct. For the randomization, sealed envelopes will be used. As for cSEMSs, removable cSEMSs with diameter of 10 mm will be placed. A dilation with a 8-10mm balloon will be performed before and after the stent placement to secure the stent expansion. As for plastic stents, minimum three simultaneous 10 Fr stents will be inserted after 8-10 mm balloon dilation.
After three months a further ERCP will be performed. The number of plastic stents will be increased maximally to six 10 Fr stents after dilation if possible. In the group with cSEMS, the position of the stent will be controlled.
Once the cSEMS or plastic stents have been in place for minimum six months, the stents will be removed at the last ERCP.
Clinical response (adequate biliary drainage) is the primary endpoint of the study. Therefore, blood liver function tests (bilirubin, alkaline phosphatase) as well as the minimum diameter of the common bile duct in the area of the stricture, the maximum diameter of the common bile duct above the stricture and the length of the stricture are measured at ERCPs at the time of the initial plastic stent insertion (i.e. the first ERCP) and at removal of cSEMS or multiple plastic stents (the last ERCP). In addition, blood liver function tests are measured and abdominal ultrasonography performed in the follow-up six months and two years after the stent removal.
Morbidity and mortality are additional endpoints of the study. Therefore, complications (deaths, stent occlusions, dislodgements or migrations, cholangitis, hemobilia, stone formation above the stent), management of complications, admission times, surgical interventions and any additional care needed are monitored and recorded during the follow-up time. Patients are asked to contact the physician at any time if symptoms such as fever, abdominal pain or jaundice occur.
|Study Type :||Observational|
|Estimated Enrollment :||60 participants|
|Observational Model:||Case Control|
|Official Title:||Covered Self-expandable Metal Stents Versus Multiple Plastic Stents for Benign Biliary Stricture Caused by Chronic Pancreatitis: a Prospective Randomized Study|
|Study Start Date :||March 2008|
|Actual Primary Completion Date :||May 2013|
|Estimated Study Completion Date :||May 2015|
- Stricture resolution of the common bile duct in the two study groups [ Time Frame: 2.5 years ]Stricture resolution during stenting and follow-up period, defined by normal liver function tests and abdominal ultrasonography
- Stent removability [ Time Frame: Time from stent removal to 1 month post-stent removal ]Ability to remove stents endoscopically after six months without stent-removal related complications
- Occurrence of complications related to stents and procedure [ Time Frame: 2.5 years ]
- Length of endoscopic procedures in the two groups [ Time Frame: All endoscopic procedures ]
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01085747
|Helsinki University Central Hospital|
|Helsinki, Finland, 00290|
|Principal Investigator:||Jorma Halttunen, MD, PhD||Helsinki University Central Hospital|