A Trial Comparing the Uncovered to the Covered Wallstent in the Palliation of Malignant Bile Duct Strictures
A Trial Comparing the Uncovered to the Covered Wallstent in the Palliation of Malignant Bile Duct Strictures
The purpose of the study is to determine the best management of bile duct narrowing
 (stricture) due to inoperable tumors. The bile duct is a tube that carries bile formed in the
 liver to the small bowel to digest fats. Tumors around the bile duct can compress the duct
 causing pain, jaundice (yellow skin and eyes), itchy skin and fever.
This is a prospective randomized trial conducted at 4 large teaching hospitals (Brigham and
 Women's Hospital, Massachusetts General Hospital, and Boston Medical Center, Boston,
 Massachusetts, and Mayo Clinic, Rochester, Minnesota).

 Malignancy is determined by pathology. Cancer stage is determined by transabdominal imaging
 and/or endoscopic ultrasound (EUS). Written informed consent is obtained from each of the
 enrolled patients. The study is approved by the Institutional Review Boards at each of the
 participating centers.
Inclusion Criteria:

 -  ≥ 18 years of age.

 -  Malignant bile duct stricture.

 -  Increased bilirubin.

 -  Duct stricture is ≥ 1 cm distal to the biliary hilum (bifurcation of the common
 hepatic duct into the right and left hepatic ducts).

 -  Not an operative candidate.

 Exclusion Criteria:

 -  Unable to obtain consent.

 -  Unable to tolerate procedure.

 -  Suspected benign bile duct stricture.

 -  Candidate for potentially curative surgical intervention.

 -  Previous metallic biliary stent.

 -  Previous bile duct surgery.