NCT07336576

Brief Summary

The management of congenital biliary dilations (CBDs), including choledochal cysts, represents one of the most challenging areas in hepatobiliary surgery due to their potential implications for long-term morbidity and malignant transformation. While CBDs have a relatively low incidence in Western populations (1/150,000-1/100,000), the prevalence is notably higher in Asian countries (1/1,000), making it a significant global health concern. Although complete surgical resection remains the standard of care, the optimal extent of resection and reconstruction strategy, particularly for complex disease patterns, continues to be debated. To address these challenges, the current study proposes a novel surgery-oriented classification system for adult CBD based on the analysis of 234 consecutive cases.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
234

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Oct 2024

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
completed

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

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

October 1, 2024

Completed
8 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2025

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2025

Completed
5 months until next milestone

First Submitted

Initial submission to the registry

December 12, 2025

Completed
1 month until next milestone

First Posted

Study publicly available on registry

January 13, 2026

Completed
Last Updated

January 13, 2026

Status Verified

December 1, 2025

Enrollment Period

8 months

First QC Date

December 12, 2025

Last Update Submit

December 30, 2025

Conditions

Keywords

Choledochal Cyst

Outcome Measures

Primary Outcomes (1)

  • The modified Mayo Clinic score for CBD

    Patients were stratified into excellent, good, fair, and poor categories based on established criteria

    Last follow-up time (assessed up to 10 year)

Secondary Outcomes (2)

  • perioperative complications

    Perioperative period(Within 3 months after surgery)

  • long-term disease-free survival

    Last follow-up time (assessed up to 10 year)

Study Arms (1)

underwent surgical treatment for CBD between November 2014 and October 2024

Procedure: hepatectomy、liver transplantation、hepaticojejunostomy

Interventions

resection of the diseased bile duct, elimination of secondary lesions, and restoration of biliary-enteric continuity.

underwent surgical treatment for CBD between November 2014 and October 2024

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Consecutive adult patients who underwent surgical treatment for common bile duct (CBD) diseases between November 2014 and October 2024 at Beijing Tsinghua Changgung Hospital.

You may qualify if:

  • Age: Adults (≥18 years).
  • Study population: Consecutive patients treated at Beijing Tsinghua Changgung Hospital.
  • Time frame: Underwent surgical treatment between November 2014 and October 2024.
  • Condition/Procedure: Underwent surgical treatment for common bile duct (CBD) diseases.

You may not qualify if:

  • Secondary biliary dilatation due to proximal obstruction, including intrahepatic and/or extrahepatic bile duct dilatation caused by proximal biliary obstruction, such as:
  • benign stricture,
  • malignant stricture,
  • obstructive stones.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Hepatopancreatobiliary Center, Beijing Tsinghua Changgung Hospital, Key Laboratory of Digital Intelligence Hepatology, Ministry of Education, School of Clinical Medicine, Tsinghua University, Beijing, China

Beijing, Beijing Municipality, 100000, China

Location

MeSH Terms

Conditions

Choledochal Cyst

Condition Hierarchy (Ancestors)

CystsNeoplasmsBile Duct DiseasesBiliary Tract DiseasesDigestive System DiseasesDigestive System AbnormalitiesCongenital AbnormalitiesCongenital, Hereditary, and Neonatal Diseases and Abnormalities

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
RETROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Chief Physician

Study Record Dates

First Submitted

December 12, 2025

First Posted

January 13, 2026

Study Start

October 1, 2024

Primary Completion

June 1, 2025

Study Completion

July 1, 2025

Last Updated

January 13, 2026

Record last verified: 2025-12

Data Sharing

IPD Sharing
Will not share

Locations