Brief Title
Radiofrequency Ablation for Biliopancreatic Malignancy
Official Title
Investigation of the Effect of Intraductal Radiofrequency Ablation in Inoperable Biliopancreatic Tumors Complicated With Obstructive Jaundice
Brief Summary
This phase-2 study aims to evaluate feasibility, safety and efficacy of thermal ablation of biliary obstructive malignancies by means of radiofrequency ablation (RFA, ELRA, StarMed) during endoscopic retrograde cholangio-pancreaticography (ERCP) with primary intent to obtain palliative biliary drainage via stenting
Detailed Description
INTRODUCTION Biliary obstruction is the most relevant factor for survival and quality of life in patients suffering from primary bile duct malignancies or pancreatic head carcinoma. Due to their insidious course, these cancers are often diagnosed at an advanced stage. Thus, therapy is frequently restricted to palliative management. Within this setting, the prevention/treatment of biliary complications such as jaundice, cholangitis, or sepsis is one of the key therapeutic factors to extend survival and maintain quality of life (1-3). Endoscopic stenting of the biliary tract is now generally accepted as the primary approach to reestablish sufficient biliary drainage, provided approximately 50% of the liver parenchyma is drained (4). As the tumor grows, unfortunately, it often occurs that jaundice reappears despite primary stenting. Most oftenly this relates to unbridled tumor expansion leading to either stent-dysfunction by tumor ingrowth (through the mesh in case of metallic stenting of or via clogging of plastic stents) or either to extension in more proximal bile ducts/branches shutting of sufficient/adequate biliary drainage. Given the context of incurable disease, a minimally-invasive strategy that could reduce the tumor burden in addition to stenting might be considered beneficial in terms of longer sustained bile duct drainage, and as such improve quality of life, more efficiently administered and better tolerated courses chemotherapy and delayed disease progression. An example of such a potential minimal invasive strategy is RadioFrequency Ablation (RFA). It involves a modified electrocautery technique that has emerged among the many choices for local, minimally invasive tissue ablation. It has proven effective, versatile, and relatively inexpensive. RFA has been used for years in the treatment of cardiac dysrhythmias from aberrant conduction pathways, osteoid osteoma, prostate hypertrophy, and chronic pain (5-8). Recent clinical applications include tumor ablation in the liver (9-11), kidney (12,13) adrenal gland (14,15), bone (16), lung (17), and breast (18) as well as soft tissue debulking and pain palliation (19). In the context of gastro-intestinal endoscopy, RFA has taken its place in the reduction of neoplastic progression of Barrett esophagus over 3 years of follow-up (20). With regard to biliopancreatic endoscopy and oncology in particular, this approach has only recently been introduced. A primary experience using an alternative endoscopically applicable RFA-system for bile duct lesions, has shown to be feasible and safe ex vivo in resected fresh pig livers and in an open-label pilot study involving 22 patients with malignant biliary obstruction (21,22). Similar results have been obtained in animal testing for the ELRA-system (StarMed, Taewoong Medical, Seoul, Korea). The presumed theoretical advantage of the current system (ELRA system, StarMed, Taewoong Medical, Seoul, Korea) is the capacity to better control the locally applied temperature at all times and to maintain temperature continuous, as such preventing tissue adjacent to an active tip from carbonization during the procedure. Additionally the 4-ring appliance of thermal ablation allows a better thermal spreading and therefore appliance of ablation STUDY OBJECTIVE & DESIGN This project involves a single center investigator-driven prospective non-randomized non-controlled trial evaluating feasibility, safety and efficacy of thermal ablation of biliary obstructive malignancies by means of the ELRA RF during ERCP with primary intent to obtain palliative biliary drainage via stenting . STUDY METHODOLOGY : POPULATION & INTERVENTION ELIGIBLE PATIENT POPULATION All patients with an inoperable biliopancreatic tumor with obstructive jaundice and therefore in need of biliary drainage via ERCP, eligible and consenting for inclusion (cfr infra), will be considered for entry in the study. This is a non-randomized non-controlled investigator-driven trial. ENDOSCOPIC INTERVENTION All procedures will be performed under general anesthesia, according to standard good clinical practice. After performing an endoscopic sphincterotomy with/without balloon dilatation of the stenosis (conventional approach) in preparation of stenting, a RFA catheter (ELRA, Taewoong, Seoul, Korea), suitable for endoscopic delivery into the biliary tree over a 0.035-inch guide wire, will be advanced up to the level of the malignant stenosis. The "end of follow-up" is defined as the end of the follow-up period (designated at 3 months after index procedure) or failure of treatment or death. The outcome parameters will be compared to those of a historically matched control group (i.e. stented without RFA).
Study Phase
Phase 2
Study Type
Interventional
Primary Outcome
Feasibility (ratio of technically successful RFA-applications to all examinations in which RFA-use was intended)
Secondary Outcome
Efficacy measured by progression-free survival at 3 months upon standard follow-up imaging study and duration of stent patency (days) after the RFA-performed procedure
Condition
Pancreas Cancer
Intervention
Radiofrequency ablation (StarMed)
Study Arms / Comparison Groups
Radiofrequency ablation (StarMed)
Description: Radiofrequency ablation catheter
Publications
* Includes publications given by the data provider as well as publications identified by National Clinical Trials Identifier (NCT ID) in Medline.
Recruitment Information
Recruitment Status
Device
Estimated Enrollment
18
Start Date
November 2014
Completion Date
March 2016
Primary Completion Date
March 2016
Eligibility Criteria
Inclusion Criteria: 1. Male or female subjects with age above 18 years old 2. A confirmed diagnosis (endoscopic radiology, histology etc) of pancreatic or cholangiocarcinoma with obstructive jaundice considered inoperable according to multidisciplinary assessment 3. Willing and able to give written informed consent Exclusion Criteria: 1. Refusal to consent or undergo ERCP 2. Less than 50% of liver parenchyma potentially drainable on pre-intervention imaging 3. Platelets < 40 x 109 mm3, an international normalized ratio (INR) > 1.5 4. Other concomitant disease or condition likely to significantly decrease life expectancy (e.g., moderate to severe congestive heart failure, severe COPD) 5. Portal vein thrombosis 18 patients to be included : Hilar cholangiocarcinoma : n=9 Distal cholangiocarcinoma/pancreatic cancer n=9
Gender
All
Ages
18 Years - N/A
Accepts Healthy Volunteers
No
Contacts
Laleman Wim, MD PhD, ,
Location Countries
Belgium
Location Countries
Belgium
Administrative Informations
NCT ID
NCT02468076
Organization ID
IGNITE-1
Responsible Party
Sponsor
Study Sponsor
Universitaire Ziekenhuizen KU Leuven
Study Sponsor
Laleman Wim, MD PhD, Principal Investigator, Universitaire Ziekenhuizen KU Leuven
Verification Date
November 2014