Efficacy and safety of endoscopic intraductal radiofrequency ablation for obstructed biliary metal stents

Efficacy and safety of endoscopic intraductal radiofrequency ablation for obstructed biliary metal stents - Efficacy of endoscopic intraductal radiofrequency ablation for obstructed biliary metal stents

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000057192

Enrollment

Registered

2025-04-01

Start date

2025-04-01

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

Malignant biliary obstruction

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Patients who will be examined between the date of approval by the head of the research institution and July 31, 2028 2. Patients with histologically proven malignant biliary obstruction 3. Patients who underwent biliary drainage due to uncovered self-expandable metallic stent obstruction 4. Possible to get written informed consent from patients 5. Patients aged 18 years or older at the time of obtaining consent

Exclusion criteria

Exclusion criteria: 1. Patients with acute cholangitis at the time of obtaining consent 2. Postoperative intestinal reconstruction cases (Billroth II, Roux-en-Y, etc.) 3. Patients judged inappropriate by chief medical examiner

Design outcomes

Primary

Measure	Time frame
Non-RBO rate 90 days after endoscopic intraductal radiofrequency ablation	—

Secondary

Measure	Time frame
1. Technical success rate 2. Adverse events 3. Factors associated with failure of endoscopic intraductal radiofrequency ablation 4. Risk factors for RBO	—

Countries

Japan

Contacts

Public ContactKazuya Miyamoto

Okayama University Hospital Department of Geriatric medicine

ttpcx442@yahoo.co.jp086-235-7219

Outcome results