NCT06820541

Brief Summary

The goal of this randomized controlled trial is to determine whether primary prophylaxis with transpapillary gallbladder drainage prevents acute cholecystitis after fully-covered self-expandable metal stents placement during endoscopic retrograde cholangiopancreatography for malignant distal biliary obstruction in patients at higher risk of post-endoscopic retrograde cholangiopancreatography acute cholecystitis. The main question it aims to answer is: Does prophylactic transpapillary gallbladder drainage reduce the rate of post-endoscopic retrograde cholangiopancreatography acute cholecystitis in high-risk patients? Researchers will compare patients who undergo transpapillary gallbladder drainage to patients without transpapillary gallbladder drainage to see if transpapillary gallbladder drainage reduces the rate of acute cholecystitis. Participants will:

  1. 1.receive or not transpapillary gallbladder drainage before fully-covered self-expandable metal stents placement
  2. 2.will be followed up at one, three, and six months to ascertain the onset of acute cholecystitis

Trial Health

63
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Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
80

participants targeted

Target at P50-P75 for not_applicable

Timeline
5mo left

Started Mar 2025

Geographic Reach
1 country

1 active site

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress75%
Mar 2025Oct 2026

First Submitted

Initial submission to the registry

February 6, 2025

Completed
5 days until next milestone

First Posted

Study publicly available on registry

February 11, 2025

Completed
18 days until next milestone

Study Start

First participant enrolled

March 1, 2025

Completed
1.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 1, 2026

Completed
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2026

Expected
Last Updated

February 11, 2025

Status Verified

February 1, 2025

Enrollment Period

1.1 years

First QC Date

February 6, 2025

Last Update Submit

February 6, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • Acute cholecystitis

    The rate of acute cholecystitis, defined according to the Tokyo guideline, will be calculated and compared between the two groups

    6 months

Secondary Outcomes (5)

  • Overall adverse events

    6 months

  • Hospitalization

    6 months

  • Disease-free survival

    6 months

  • Technical success

    1 mont

  • Procedure time

    1 month

Study Arms (2)

Transpapillary stenting

EXPERIMENTAL

Patients will undergo prophylactic transpapillary gallbladder drainage followed by fully-covered self-expandable metal stent placement for biliary drainage

Device: Double plastic pigtail stent plus fully covered self-expandable metal stent

Standard biliary drainage

ACTIVE COMPARATOR

Patients will undergo fully-covered self-expandable metal stent placement for biliary drainage

Device: Fully covered self-expandable metal stent

Interventions

After contrast injection, the cystic duct orifice will be detected. Using a sphincterotome, a 0.035-inch hydrophilic angled guidewire will be negotiated into the gallbladder. Dilation of the cystic duct will be performed using standard devices designed for biliary intervention, including pneumatic dilators or dilation progressive catheters. After dilation, a 7Fr plastic, double pigtail stent, length of 12 or 15 cm, will be deployed across the papilla. Finally, a fully-covered self-expandable metal stent will be placed alongside the gallbladder drainage for biliary drainage.

Transpapillary stenting

After biliary cannulation, a fully covered self-expandable metal stent will be placed for biliary drainage

Standard biliary drainage

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Adult patients
  • Signed informed consent
  • Patients requiring covered metal stent placement for managing MBO
  • High-risk of post-endoscopic cholangiopancreatography acute cholecystitis according to the following criteria:
  • tumor involvement of the cystic duct orifice confirmed on magnetic resonance imaging, computed tomography, endoscopic ultrasound, or at endoscopic cholangiopancreatography;
  • presence of at least 2 of the following:
  • gallbladder stones;
  • CBD diameter ≤ 10 mm;
  • intraprocedural gallbladder opacification;
  • cystic duct orifice at risk of being covered by the fully-covered stent

You may not qualify if:

  • History of cholecystectomy
  • Endoscopic retrograde cholangiopancreatography not feasible for duodenal stenosis or failed biliary cannulation
  • Patients with previous gallbladder drainage
  • Acute cholecystitis is already present based on the Tokyo guidelines

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

AOUI Verona

Verona, 37134, Italy

Location

MeSH Terms

Conditions

Cholecystitis, Acute

Condition Hierarchy (Ancestors)

CholecystitisGallbladder DiseasesBiliary Tract DiseasesDigestive System Diseases

Central Study Contacts

Stefano Francesco Crinò, MD, PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Masking Details
Participants will be not informed about the treatment received
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 6, 2025

First Posted

February 11, 2025

Study Start

March 1, 2025

Primary Completion

April 1, 2026

Study Completion (Estimated)

October 1, 2026

Last Updated

February 11, 2025

Record last verified: 2025-02

Data Sharing

IPD Sharing
Will not share

Locations