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A Comparative Study of Plastic and Metal Stents for Endoscopic Ultrasound-Guided Hepaticogastrostomy

A Multicenter Randomized Controlled Trial Comparing Plastic and Metal Stents for EUS-Guided Hepaticogastrostomy in Patients with Unresectable Malignant Biliary Strictures - PREMISE

Status
Recruiting
Phases
Phase 3
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCTs052250203
Enrollment
84
Registered
2026-01-26
Start date
2026-02-02
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

Patients with unresectable malignant biliary stricture planned for EUS-HGS malignant biliary stricture

Interventions

Group A: EUS-HGS using a self-expanding metal stent (SEMS) Group B: EUS-HGS using a plastic stent (PS)

Sponsors

Kitano Masayuki
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: (1) Patients aged 20 years or older at the time of consent. (2) Patients who have been pathologically diagnosed with malignancy or are strongly suspected of having malignancy based on imaging studies. (3) Patients scheduled to undergo EUS-guided hepaticogastrostomy (EUS-HGS) for unresectable malignant biliary stricture. (4) Patients expected to survive for more than 3 months after treatment. (5) Patients who undergo EUS-HGS as the initial drainage treatment or as a secondary drainage treatment following failure of the initial procedure. (6) Patients who have provided written informed consent.

Exclusion criteria

Exclusion criteria: (1) Patients judged to be unsuitable for endoscopic treatment. (2) Patients with a history of left hepatic lobectomy. (3) Patients who have undergone total gastrectomy. (4) Patients diagnosed with perihilar cholangiocarcinoma classified as Bismuth type 3b or 4. (5) Patients with an ECOG Performance Status of 4. (6) Patients with uncontrolled ascites. (7) Patients with severe comorbidities (cardiac, pulmonary, renal, or hepatic diseases), generally corresponding to ASA Physical Status > 4 or higher. (8) Patients with bleeding tendency (defined as PT-INR >1.5 or platelet count < 50,000/uL) (9) Patients with PTBD tubes in place at the time of consent (10) Patients deemed inappropriate for inclusion by the principal or sub-investigator for any other reason.

Design outcomes

Primary

MeasureTime frame
Time to recurrent biliary obstruction (TRBO) until 180 days after treatment

Secondary

MeasureTime frame
(1) Technical success rate (2) Clinical success rate (3) The cumulative incidence of RBO during the overall survival (4) Time to RBO during the overall survival (5) Adverse event rate (6) Procedure time (7) Re-intervention success rate (8) Overall survival (OS) (9) Rate of chemotherapy administration after biliary drainage (10) Total medical costs related to treatment for biliary obstruction

Contacts

Public ContactMasahiro Itonaga

Wakayama Medical University Hospital

itonaga@wakayama-med.ac.jp+81-73-447-2300

Outcome results

None listed

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