DIGEST I Pilot study is a feasibility study for evaluating the safety and efficacy of DCBs.
The study is designed to determine the safety and effectiveness of drug coated balloon (DCB) treatments on biliary tract stricture. Up to 15 subjects are planned to be enrolled and treated with the study device at up to 5 clinical sites outside of US. Subjects will be followed up post-treatment to one year and then annually for up to 5 years. The annual follow up after the first year is optional.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
8
The GIE DCB is a balloon catheter coated with a proprietary coating containing the drug and carriers.
Adventista Hospital
Asunción, Paraguay
Incident of serious balloon dilation-related complications
No serious procedure-related complications, including perforation, bleeding requiring invasive intervention or transfusion, cholangitis, pancreatitis, etc.
Time frame: 30 days
Freedom from Biliary Stricture Re-intervention
Biliary stricture re-intervention rate
Time frame: 12 months
Change in Liver Function
. Liver function tests include total and direct bilirubin, alanine aminotransferase (ALT), aspartate aminotransferase (AST), alkaline phosphatase (ALP), gamma-glutamyl transferase (GGT)
Time frame: Baseline, 7 days, 30 days, 3 months, 6 months, 12 months and 24 months
Change in Existing Biliary Obstructive Symptoms
The common biliary obstructive symptoms are right upper quadrant pain (survey), fever/chills (cholangitis), jaundice, itching, dark urine, pale stools, nausea/vomiting, weight loss
Time frame: Baseline, 30 days, 3 months, 6 months, 12 months and 24 months
Biliary Stricture Diameter
Stricture diameter will be assessed via endoscopic retrograde cholangiopancreatography (ERCP)
Time frame: Baseline, 6 months
Time to the First Re-intervention
The mean time to the first re-intervention (scheduled and unscheduled) will be assessed
Time frame: 12 months and 24 months
Sustained Clinical Success (SCS)
SCS defined as a period of at least 6 months with no need for further endoscopic intervention
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Time frame: 12 months and 24 months
Long Term Clinical Success (LTCS)
LTCS, defined as no need for further endoscopic intervention for at least 24 months
Time frame: 12 months and 24 months
Mean number of dilations
Mean number of dilations required to achieve SCS and LTCS
Time frame: 12 months and 24 months
Technical Success
Technical success is defined as successful insertion, dilatation of the target biliary stricture, and finally withdrawal of the device with no device malfunctions.
Time frame: 0 months