Inside-stent placement for initial recurrent biliary obstruction after side-by-side self-expandable metal stenting in patients with unresectable malignant hilar biliary obstruction: a prospective exploratory trial

Inside-stent placement for initial recurrent biliary obstruction after side-by-side self-expandable metal stenting in patients with unresectable malignant hilar biliary obstruction: a prospective exploratory trial - Inside-stent placement for initial recurrent biliary obstruction after side-by-side self-expandable metal stenting in patients with unresectable malignant hilar biliary obstruction

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000034054

Enrollment

Registered

2018-10-01

Start date

2018-10-17

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

Unresectable malignant hilar biliary obstrunction

Interventions

Inside-stent placement for initial recurrent biliary obstruction after side-by-side self-expandable metal stenting

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. age =or >20 2. unresectable malignant hilar obstruction 3. initial recurrent biliary obstruction after side-by-side self-expandable metal stenting 4. providing written informed consent

Exclusion criteria

Exclusion criteria: 1. liver abscess 2. ECOG Performance Status 4 3. prognosis less than 4 weeks 4. patients whose participation in the trial was judged to be inappropriate by the investigator

Design outcomes

Primary

Measure	Time frame
Time to recurrent biliary obstruction	—

Secondary

Measure	Time frame
Technical success rate Functional success rate Procedure time Non-obstruction rate Adverse event	—

Countries

Japan

Contacts

Public ContactKosuke Okuwaki

Kitasato University School of Medicine Department of Gastroenterology

kokuwaki@kitasato-u.ac.jp81-24-778-8111

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026