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Study on the Association between Early Obstruction of Biliary Stents and Biliary Microbiome after Stent Placement

Study on the Association between Early Obstruction of Biliary Stents and Biliary Microbiome after Stent Placement

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2500104318
Enrollment
Unknown
Registered
2025-06-16
Start date
2025-07-01
Completion date
Unknown
Last updated
2025-06-24

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

Conditions

Biliary obstruction

Interventions

Early biliary stent obstruction group:None
Non-early biliary stent obstruction group:None

Sponsors

Peking University First Hospital
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 80 Years

Inclusion criteria

Inclusion criteria: 1.Age between 18 and 80 years.? 2.Patients with extrahepatic biliary obstruction who underwent prior ERCP for placement of a covered self-expandable metal stent (cSEMS) and now require repeat ERCP for stent exchange due to obstruction; or are scheduled for ERCP for stent removal due to other indications, despite the stent remaining patent (non-obstructed), and the stent has been in situ for >180 days. 3.Availability of complete clinical documentation.? 4.Provision of written informed consent to participate in the study.?

Exclusion criteria

Exclusion criteria: 1.Patients scheduled for ERCP stent removal with stent indwelling time =180 days.? 2.?Severe cardiopulmonary disease precluding safe ERCP.? 3.Conditions preventing ERCP access (e.g., gastrointestinal obstruction).? 4.Refusal to participate in the study.?

Design outcomes

Primary

MeasureTime frame
Differences in the biliary microbiome;—

Countries

China

Contacts

Public ContactBin Zhou

Peking University First Hospital

byzhoubin@163.com+86 10 83572437

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026