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Endoscopic Biliary Co-axial Stent Placement Plus/Minus Use of Radiofrequency Ablation (RFA) for Clearance of Occluded Self Expandable Metal Stents (SEMS) in Patients With Distal Biliary Obstruction From Unresectable Biliary-pancreatic Malignancies

A Randomized Trial of Endoscopic Biliary Co-axial Stent Placement Plus/Minus Use of Radiofrequency Ablation (RFA) for Clearance of Occluded Self Expandable Metal Stents (SEMS) in Patients With Distal Biliary Obstruction From Unresectable Biliary-pancreatic Malignancies

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02340728
Enrollment
24
Registered
2015-01-19
Start date
2015-01-31
Completion date
2019-11-30
Last updated
2020-10-22

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Pancreatic Cancer, Unresectable Biliary-pancreatic Malignancies

Keywords

Stent Placement, Biliary Obstruction, 14-260

Brief summary

The purpose of this study is to compare the effects good and/or bad of combining radiofrequency ablation with placement of a second stent, versus a second stent alone. The investigators will also look at the safety of the combination treatment, and see which treatment is better. In either case, the second stent will be placed inside the existing stent as is done in standard practice when treating a blocked stent for the first time.

Interventions

DEVICEERCP with SEMS plus radiofrequency ablation
DEVICEERCP with SEMS alone (standard of care)

Sponsors

Memorial Sloan Kettering Cancer Center
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patients with any tumor obstructing the distal bile duct and causing an indwelling biliary SEMS * Patients with jaundice or clinical cholangitis, with new elevation of alkaline phosphatase, total bilirubin, and imaging findings supportive of stent occlusion (loss of stent patency, debris within stent, loss of or excessive pneumobilia) * Age ≥ 18 years

Exclusion criteria

* Have altered gastro-duodenal or hepatobiliary anatomy such that ERCP is felt to be unacceptably technically difficult or unsafe * Have additional sites of biliary strictures (intrahepatic/hilar) such that ERCP stenting is felt to be unlikely to provide adequate clinical benefit * Have cardiac pacemakers * Have Child B/C cirrhosis * Are pregnant * Are unsuitable for endoscopy (either because of hemodynamic instability, respiratory distress or unsafe hematological parameters such as refractory anemia \<7g/dL, thrombocytopenia \<50K/mcL, or coagulopathy with INR \>2.0) * Have biliary strictures not technically amenable to endoscopic therapy

Design outcomes

Primary

MeasureTime frame
Rate of Failure180 days

Secondary

MeasureTime frame
Rate of Stent Patency1 and 3 months post procedure
Incidence of Procedure Related Complications1 month

Countries

United States

Participant flow

Participants by arm

ArmCount
ERCP With SEMS Plus Radiofrequency Ablation
Endoscopic retrograde cholangiopancreatogram (ERCP) is performed under standard conditions with cannulation of the bile duct, and demonstration on a cholangiogram the location, diameter and length of the biliary stricture. The HabibTM EndoHBP probe (EMcision, London, United Kingdom) is advanced through the working channel of a side viewing endoscope over a 0.035in guidewire, and positioned across the occluded SEMS under fluoroscopy. 7-10W are usually delivered for 90 seconds with a standard high frequency generator, followed by a 1 minute resting period. Sequential applications of RFA are applied along the entire length of the stricture with an overlap of 1cm. ERCP with SEMS plus radiofrequency ablation
13
ERCP With SEMS Alone (Standard of Care)
Endoscopic retrograde cholangiopancreatogram (ERCP) is performed under standard conditions with cannulation of the bile duct, and demonstration on a cholangiogram the location, diameter and length of the biliary stricture. The HabibTM EndoHBP probe (EMcision, London, United Kingdom) is advanced through the working channel of a side viewing endoscope over a 0.035in guidewire, and positioned across the occluded SEMS under fluoroscopy. 7-10W are usually delivered for 90 seconds with a standard high frequency generator, followed by a 1 minute resting period. ERCP with SEMS alone (standard of care)
11
Total24

Baseline characteristics

CharacteristicERCP With SEMS Plus Radiofrequency AblationTotalERCP With SEMS Alone (Standard of Care)
Age, Continuous62.5 years60.4 years57.9 years
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants0 Participants0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
13 Participants24 Participants11 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
1 Participants2 Participants1 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
1 Participants2 Participants1 Participants
Race (NIH/OMB)
White
11 Participants20 Participants9 Participants
Region of Enrollment
United States
13 Participants24 Participants11 Participants
Sex: Female, Male
Female
5 Participants10 Participants5 Participants
Sex: Female, Male
Male
8 Participants14 Participants6 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
12 / 1311 / 11
other
Total, other adverse events
13 / 1311 / 11
serious
Total, serious adverse events
4 / 134 / 11

Outcome results

Primary

Rate of Failure

Time frame: 180 days

Population: Data were not collected

Secondary

Incidence of Procedure Related Complications

Time frame: 1 month

Population: Data were not collected

Secondary

Rate of Stent Patency

Time frame: 1 and 3 months post procedure

Population: Data were not collected

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026