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Effectiveness of Endorotor PED® System Versus Conventional Endoscopic Techniques for the Management of Walled-off Pancreatic Necrosis in Acute Necrotizing Pancreatitis: Randomized Single-blinded Controlled Superiority Trial and Cost-utility Analysis

Effectiveness of Endorotor PED® System Versus Conventional Endoscopic Techniques for the Management of Walled-off Pancreatic Necrosis in Acute Necrotizing Pancreatitis: Randomized Single-blinded Controlled Superiority Trial and Cost-utility Analysis

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07253350
Acronym
ROTONEC
Enrollment
64
Registered
2025-11-28
Start date
2026-01-20
Completion date
2029-11-01
Last updated
2026-01-30

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

Conditions

Acute Necrotizing Pancreatitis

Keywords

endoscopic necrosectomy, necrotic pancreatic collection

Brief summary

This is a national single-blinded prospective multicenter randomized (1:1) controlled trial, with two parallel arms, using a PROBE methodology, including patients with complicated acute necrotizing pancreatitis who require DEN of WON collection after endoscopic drainage. We will compare 2 groups: conventional DEN and DEN with Endorotor®. The study will be offered to all consecutive patients fulfilling the eligibility criteria after endoscopic drainage for WON. Since the time between drainage and the first necrosectomy session is usually at least 48 hours a period of at least 24h will be allowed for the patient to consider options to participate or not. Information and collection of informed consent will be done by an investigating physician.

Interventions

DEVICEEndorotor Group

DEN will be performed with Endorotor 3.2 or ENDOROTOR PED® system depending on the position of cystoenterostomy. Endorotor 3.2 is slimmer and enters WON more easily when the transgastric access is located in the upper portion of the stomach). If needed: lavage, aspiration and conventional mechanical debridement could be used in addition during an ENDOROTOR-based DEN session.

OTHERConventional group

DEN is performed conventionally with abundant lavage and mechanical debridement using a non-dedicated material (diathermic loop, polypectomy or Dormia basket) to catch pieces of necrosis

Sponsors

Assistance Publique - Hôpitaux de Paris
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Subject)

Eligibility

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

Inclusion criteria

* Age≥18years * ASA\<5 * CT scan less than 7 days old * Hospitalized for acute necrotizing pancreatitis, whatever the cause, and who have undergone drainage of pancreatic collections for the following indications according to the revised Atlanta criteria (infection, organ compression, persistent organ failure) * Have need for at least one DEN session despite endoscopic drainage (persistence of clinical symptoms or sepsis \>48h after drainage with collection still visible)

Exclusion criteria

* No endoscopic drainage in place for the management of WON * Have already had a DEN session (endoscopic or else) before screening for inclusion * Life-expectancy \< 1year (advanced cancer, etc) * Known haemostasis disorder (chronic thrombocytopenia, haemophilia, etc.) * Pregnant or breastfeeding woman * Subject deprived of freedom, subject under a legal protective measure * Non-affiliation to a social security regimen or CMU * Patient or person of confidence (if present at the time of inclusion) opposing the patient's participation in research * Subject already involved in another interventional clinical research

Design outcomes

Primary

MeasureTime frameDescription
evaluate the effectiveness of the Endorotor PED® device versus conventional technique for the endoscopic management of symptomatic walled-off necrosis during necrotizing acute pancreatitis.5 monthThe effectiveness of the operative approach (Endorotor 3.2/PED® or conventional technique) will be assessed by the period in days between the first DEN session and the confirmed complete necrosis resolution.

Secondary

MeasureTime frameDescription
number of Need for surgery (video-assisted retroperitoneal debridement or open surgery)4 month
number of Need for "multigate" strategy with the installation of a percutaneous drain4 month
time to total recovery of acute pancreatitis16 month
Total time of all DEN sessions in minutes4 month
Total number of DEN sessions4 month
Number of days of antibiotic treatment4 month
number of abscess4 month
number of death10 month
number of new-onset multiple organ failure10 month
number of visceral perforation10 month
number of arterial perforation10 month
number of pancreatic-cutaneous fistulas10 month
number of sepsis10 month
operative difficulty of DEN assessed by endoscopists4 monthA Likert score will be used to assess the ease of use to maneuver device by endoscopist, from 0 (most difficult surgery imaginable) to 10 (easiest).
number of issues with Endorotor PED® device4 monthFailure types and number of occurrences
Number of days of hospitalization: In intensive care unit16 month
Number of days of hospitalization: In conventional unit16 month
Number of days of hospitalization in rehabilitation unit16 month
quality of life of patients during and after hospitalization16 monthEQ-5D-5L score at the end of hospitalization and during follow-up's visits
number of Bleeding of any severity4 month
Total hospital costs in acute care per patient Endorotor16 month

Countries

France

Contacts

CONTACTFrederic Prat, MD PHD
frederic.prat@aphp.fr01 40 87 56 63
CONTACTDiane Lorenzo, MD PHD
diane.lorenzo@gmail.com01 40 87 56 63
PRINCIPAL_INVESTIGATORfrederic Prat, MD PHD

APHP

Outcome results

None listed

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