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Endobiliary Radiofrequency Ablation for Malignant Biliary Obstruction Due to Perihilar Cholangiocarcinoma

Endobiliary Radiofrequency Ablation for Malignant Biliary Obstruction Due to Perihilar Cholangiocarcinoma: a Randomized Controlled Trial

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05546372
Acronym
RACCOON
Enrollment
122
Registered
2022-09-19
Start date
2022-10-22
Completion date
2027-06-30
Last updated
2026-05-26

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

Conditions

Perihilar Cholangiocarcinoma

Keywords

Endobiliary radiofrequency ablation, Stent patency

Brief summary

A multicentre, parallel group, open label, randomized controlled trial comparing endobiliary RFA prior to metal stent placement with stent placement only in patients with inoperable perihilar cholangiocarcinoma.

Interventions

DEVICEEndobiliary radiofrequency ablation (eRFA)

Intraductal radiofrequency ablation of tumor prior to stent placement

DEVICEuncovered self-expanding metal stent (uSEMS)

Intraductal placement of uncovered metal stent

Sponsors

Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)
Lead SponsorOTHER
Erasmus Medical Center
CollaboratorOTHER
Leiden University Medical Center
CollaboratorOTHER
UMC Utrecht
CollaboratorOTHER
University Medical Center Groningen
CollaboratorOTHER
St. Antonius Hospital
CollaboratorOTHER
Medisch Spectrum Twente
CollaboratorOTHER
Maastricht University Medical Center
CollaboratorOTHER
Clinical Hospital Colentina
CollaboratorOTHER
University Hospital Prague (IKEM), Prague, Czech Republic
CollaboratorUNKNOWN
Orlando Health, Inc.
CollaboratorOTHER
University Hospital, Ghent
CollaboratorOTHER
Universitaire Ziekenhuizen KU Leuven
CollaboratorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SUPPORTIVE_CARE
Masking
NONE

Eligibility

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

Inclusion criteria

* 18 years or older. * Capable of providing written and oral informed consent. * Histological or cytological proof of perihilar CCA (adenocarcinoma). * Perihilar biliary obstruction with an indication for drainage with uSEMS.\* * Advanced (no candidate for surgical resection) due to metastases, vascular or lymph node (N2) involvement on imaging or during staging laparoscopy according to multidisciplinary team (MDT). * Only patients with pCCA are eligible however in case of reasonable doubt between intrahepatic CCA with a perihilar biliary obstruction or massforming pCCA, patients can be included.

Exclusion criteria

* Patients who potentially qualify for curative resection of pCCA. * pCCA eligible for liver transplantation. * Life-expectancy less than 3 months. * ERCP and PTC technically not feasible. * Uncontrolled coagulopathy (PTT \>1,5x prolonged or thrombocytes below 40\*10E9/L). * Ongoing cholangitis or liver abscess. Patients are required to be off antibiotic treatment for cholangitis and/or liver abscess at least 7 days. * Any condition that is unstable or that could jeopardize the safety of the subject and their compliance in the study. * Patients who are pregnant or breastfeeding.

Design outcomes

Primary

MeasureTime frameDescription
Time to biliary obstructionThrough study completion, max 1 yearDefined as period between initial procedure and recurrence of biliary obstruction. Recurrence of biliary obstruction is defined as recurrent jaundice (conjugated bilirubin ≥ 40 umol/l (≥2.3 mg/dl)), presence of biochemical evidence of cholestasis along with dilatation of the drained bile duct(s), or endoscopic findings suggesting stent occlusion.

Secondary

MeasureTime frameDescription
Quality of life expressed in quality adjusted life-years (QALYs)Through study completion, max 1 yearEORTC QLQ-C30, BIL21 and EQ-5D questionnaires are to be filled out 4 weeks and every3 months after the intervention
Number of patients with technical success of initial ablationDuring interventionDefined as completion of ablation of the malignant stenosis through which the stent will be placed using RFA for 120 seconds with 7W.
Number of patients with functional success14 daysIn case of inadequate drainage prior to the procedure (bilirubin ≥40 umol/L \[≥2.3 mg/dl\]), defined as 50% decrease or normalization of bilirubin level within 14 days of the procedure or relieve of symptoms in case of cholangitis. In case of sufficient drainage prior to the procedure, a persistent bilirubin level \<40 umol/L (\<2.3 mg/dl) after 14 days is considered functional success.
Presumed reason of recurrent biliary obstructionThrough study completion, an average of 1 year1. Stent occlusion due to tumour ingrowth 2. Stent occlusion due to tumour overgrowth 3. Stent occlusion due to sludge with/or without stones, hemobilia, food impaction 4. Stent migration
Need for unscheduled re-intervention (PTC and/or ERCP) to achieve adequate biliary drainage.Through study completion, an average of 1 year
Need for external drainage catheters.Through study completion, an average of 1 year
Time to re-intervention.Through study completion, an average of 1 year
Stent patency after repeated eRFA.Through study completion, an average of 1 year
Adverse events within 30 days after the procedu30 days
Overall survival.Through study completion
Healthcare costs.Through study completion, max 1 year

Countries

Netherlands

Contacts

CONTACTEsmée Smit
e.smit1@amsterdamumc.nl+31204440613

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 27, 2026