Surgical vs Endoscopic Resection of Walled Off Pancreatic Necrosis Using the Powered Endoscopic Debridement System

NCT ID: NCT06691919

Last Updated: 2025-05-15

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

NOT_YET_RECRUITING

Clinical Phase

NA

Total Enrollment

62 participants

Study Classification

INTERVENTIONAL

Study Start Date

2026-03-31

Study Completion Date

2027-10-31

Brief Summary

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Goal:

The goal of this clinical trial is to compare the effectiveness and safety of two different but highly effective treatment approaches for walled-off necrosis (WON) resulting from severe acute pancreatitis.

Participant Population:

The study will involve adult patients experiencing symptomatic WON due to acute necrotizing pancreatitis.

Main Questions:

The main questions it aims to answer are:

1. Is "endoscopy" or direct endoscopic necrosectomy (DEN) with powered endoscopic debridement (PED) as effective as "surgery" or transgastric surgical necrosectomy (SN) in achieving clinical resolution of WON within six weeks after treatment?
2. What are the rates of complications, costs, hospital length of stay, procedure time, readmission, repeat procedures and overall patient satisfaction associated with DEN with PED compared to transgastric SN?

Comparison Group:

Researchers will compare the outcomes of patients receiving DEN with PED to those undergoing transgastric SN to see if there are significant differences in clinical success, rates of complications, and overall healthcare costs.

Participants Will:

1. Be randomly assigned to one of the two treatment groups (DEN with PED or transgastric SN).
2. Undergo the assigned treatment procedure based on their group.
3. Complete assessments before and after the procedure to evaluate clinical outcomes, hospital stay length, quality of life, and patient satisfaction.
4. Be monitored for adverse events or complications following the treatment

Detailed Description

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Conditions

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Pancreatic Necrosis Pancreatitis

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

"Endoscopy" arm will receive direct endoscopic necrosectomy and "Surgery" arm will undergo transgastric surgical necrosectomy.
Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Biostatistician will be blinded to the study groups while performing final study analysis.

Study Groups

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Direct Endoscopic Necrosectomy

Subjects randomized to the endoscopy arm will undergo direct endoscopic necrosectomy using the Powered Endoscopic Debridement System which has CE-Mark 613797 and FDA De Novo clearance in the United States (DEN200016).

Group Type EXPERIMENTAL

Direct Endoscopic Necrosectomy with Powered Endoscopic Debridement

Intervention Type DEVICE

Patients will first undergo endoscopic ultrasound-guided cystgastrostomy using an electrocautery-enhanced lumen apposing metallic stent to gain access to the necrosum. Direct Endoscopic Necrosectomy will be performed using the EndoRotor® NecroMax 6.0 PED Catheter which has an outer diameter of 5.1 mm and is compatible with endoscopes that have a working channel of ≥6.0 mm.

Transgastric Surgical Necrosectomy

Patients randomized to the surgical arm will undergo open or minimally invasive (laparoscopic) transgastric surgical necrosectomy (SN). In either approach, the peritoneal cavity is entered to identify the stomach through which an anterior gastrotomy is made. The retrogastric necrosum is identified either using a finder needle or ultrasound and accessed through a posterior cystgastrostomy. Transgastric SN is then manually performed, and any cyst fluid fully evacuated. The anterior gastrotomy is then closed allowing any residual necrosis or pancreatic enzyme to efflux into the stomach and enter the upper GI tract. As with endoscopy, patients with retrogastric collections are observed for a sufficient period to ensure full maturation of the necrosum.

Group Type EXPERIMENTAL

Transgastric Surgical Necrosectomy

Intervention Type PROCEDURE

Patients randomized to the surgical arm will undergo open or minimally invasive (laparoscopic) transgastric SN with the aim of creating an ample size cystgastrostomy to perform a complete debridement. In either approach, the peritoneal cavity is entered to identify the stomach through which an anterior gastrotomy is made. The retrogastric necrosum is identified either using a finder needle or ultrasound and accessed through a posterior cystgastrostomy. Transgastric SN is then manually performed, and any cyst fluid fully evacuated. The anterior gastrotomy is then closed allowing any residual necrosis or pancreatic enzyme to efflux into the stomach and enter the upper GI tract. As with endoscopy, patients with retrogastric collections are observed for a sufficient period to ensure full maturation of the necrosum.

Interventions

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Direct Endoscopic Necrosectomy with Powered Endoscopic Debridement

Patients will first undergo endoscopic ultrasound-guided cystgastrostomy using an electrocautery-enhanced lumen apposing metallic stent to gain access to the necrosum. Direct Endoscopic Necrosectomy will be performed using the EndoRotor® NecroMax 6.0 PED Catheter which has an outer diameter of 5.1 mm and is compatible with endoscopes that have a working channel of ≥6.0 mm.

Intervention Type DEVICE

Transgastric Surgical Necrosectomy

Patients randomized to the surgical arm will undergo open or minimally invasive (laparoscopic) transgastric SN with the aim of creating an ample size cystgastrostomy to perform a complete debridement. In either approach, the peritoneal cavity is entered to identify the stomach through which an anterior gastrotomy is made. The retrogastric necrosum is identified either using a finder needle or ultrasound and accessed through a posterior cystgastrostomy. Transgastric SN is then manually performed, and any cyst fluid fully evacuated. The anterior gastrotomy is then closed allowing any residual necrosis or pancreatic enzyme to efflux into the stomach and enter the upper GI tract. As with endoscopy, patients with retrogastric collections are observed for a sufficient period to ensure full maturation of the necrosum.

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* Patients 18 years of age or greater.
* Patients with first episode of symptomatic WON+ due to acute pancreatitis (+Persistent fatigue, malaise, abdominal pain, gastric outlet obstruction, early satiety, fever, chills, jaundice, reduced appetite, persistent nausea/vomiting, steatorrhea)
* Patients who are candidates for surgical or endoscopic necrosectomy of WON as deemed by a multidisciplinary committee of HPB surgeons and therapeutic endoscopists.
* Patients who can tolerate repeat procedures.
* Subjects with the ability to understand the requirements of the study, who have provided written informed consent, and who are willing and able to return for the required follow-up assessments.

Exclusion Criteria

* Documented untreated pseudoaneurysm within WON.
* Subject unable or unwilling to provide informed consent.
* Intervening gastric varices or unavoidable blood vessels within the WON access tract (visible using pre-procedural imaging).
* Coagulation disorders or anti-coagulant therapy which cannot be discontinued for the intervention to an absolute cardiac or vascular indication such as ACS, Stroke, Mechanical cardiovascular valves.
* Pregnant or lactating women or women of childbearing potential who do not employ a reliable method of contraception as judged by the Investigator, and/or are not willing to use reliable contraception for the duration of study participation.
* Patient is enrolled in another trial that could interfere with the endpoint analyses of this trial.
* Non-communicating pancreatic or extra-pancreatic fluid collections.
* Extensive abdominal surgical history due to peritoneal adhesions, prior open or recent operation during pancreatitis course, or remote gastric surgery that precludes a transgastric surgical cystgastrostomy.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Indiana University Health

OTHER

Sponsor Role collaborator

Stanford University

OTHER

Sponsor Role lead

Responsible Party

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Abel Joseph

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Joo Ha Hwang, MD, PhD

Role: PRINCIPAL_INVESTIGATOR

Stanford University

Central Contacts

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Study Coordinator

Role: CONTACT

650-736-5555

References

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Other Identifiers

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78066

Identifier Type: -

Identifier Source: org_study_id

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