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WONDER-02: plastic stent vs. lumen-apposing metal stent for endoscopic ultrasound-guided drainage of pancreatic pseudocysts-a multicentre randomised non-inferiority trial

WONDER-02: plastic stent vs. lumen-apposing metal stent for endoscopic ultrasound-guided drainage of pancreatic pseudocysts-a multicentre randomised non-inferiority trial - WONDER-02 trial

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000052647
Enrollment
80
Registered
2023-10-30
Start date
2023-11-01
Completion date
Unknown
Last updated
2026-06-29

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

Conditions

Pancreatic Pseudocyst

Interventions

The plastic stent group: Two (at least one) 7-Fr double pigtail stents will be placed. Following EUS guided puncture of a pseudocyst, a guidewire will be coiled within the lesion, and another guidewir
Boston Scientific Japan, Tokyo, Japan). A guidewire or dilator will be used if needed.

Sponsors

The University of Tokyo
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: -Patients with pancreatic pseudocyst defined by the revised Atlanta classification -The longest diameter of a targeted pseudocyst is more than 5 cm -Patients requiring drainage for symptoms associated with a pseudocyst -Patients aged 18 years or older -Written informed consent obtained from patients or their representatives

Exclusion criteria

Exclusion criteria: -A pseudocyst that is inaccessible via the EUS-guided approach -A plastic or lumen-apposing metal stent in situ -Coagulopathy (e.g., platelet count < 50,000/mm3 or prothrombin time international normalised ratio [PT-INR] >1.5) -Users of antithrombotic agents that cannot be discontinued according to the Japan Gastroenterological Endoscopy Society [JGES] guidelines -Patients who do not tolerate endoscopic procedures -Pregnant women

Design outcomes

Primary

MeasureTime frame
Clinical success within 180 days of randomisation

Secondary

MeasureTime frame
-Adverse events -Mortality -Technical success rate of initial EUS-PCD (Endoscopic ultrasonography-guided pseudocyst drainage) -Incidence of biliary and gastrointestinal stricture -Number and time of interventions -Indwelling time of endoscopic and percutaneous drainage -Time to success -Success rate and operation time of surgical procedures -Hospital stay and ICU stay -Duration of antibiotics administration -Cost of interventions and hospital stay -Recurrence of WON -Time to recurrence of WON -Treatment duration of recurrent WON -New onset of pseudocyst -Treatment duration of new-onset pseudocyst -Incidence of new-onset diabetes, clinical symptoms of pancreatic exocrine insufficiency, and pancreatic cancer -The presence and timing of medications for pancreatic exocrine insufficiency -The presence and timing of sarcopenia -Morphological change of pancreas

Countries

Japan

Contacts

Public ContactTomotaka Saito

Graduate School of Medicine, The University of Tokyo Department of Gastroenterology

tomsaito-gi@umin.ac.jp03-3815-5411

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026