A Multicenter Randomized Controlled Trial to Investigate the Efficacy of follow-up for Asymptomatic Common Bile Duct Stones 4mm or less

Not Applicable

• Conditions: Choledocholithiasis

• Registration Number: JPRN-UMIN000046365
• Lead Sponsor: Keio University School of Medicine

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Results First Posted: 1900-01-01
• Study Start: 2021-12-13
• Last Update Posted: 17 October 2023
• Study Completion: 2026-03-31

Recruitment & Eligibility

• Status: Complete: follow-up complete
• Sex: All
• Target Recruitment: 36

Inclusion Criteria

Not provided

Exclusion Criteria

1) Patients who do not agree to participate in this study 2) Patients who cannot undergo endoscopic treatment due to their general condition, jaw, oral, or gastrointestinal condition 3) Patients who are in poor general condition or have serious complications with American Society of Anesthesiologists (ASA) class 4 or higher 4) Patients with conditions after upper gastrointestinal reconstruction other than Billroth-I reconstruction 5) Patients after duodenal papillectomy, papilloplasty, or surgical bile duct gastrointestinal anastomosis 6) patients with primary sclerosing cholangitis (PSC), IgG4-related cholangitis, or primary biliary cholangitis (PBC) 7) Patients with a history of allergy to biliary contrast agent or severe allergy to angiographic contrast agent 8) Patients who, if assigned to group B, will not be able to undergo ERCP within 1 month 9) Patients who are pregnant or may become pregnant 10) Patients for whom follow-up observation is considered impossible

Study & Design

• Study Type: Interventional
• Study Design: Not specified