A multicenter prospective study to assess utility and safety of a metal stent with special designed for partial stent-in-stent for obstructive jaundice in patients with unresectable malingant hilar part stenosis.

A multicenter prospective study to assess utility and safety of a metal stent with special designed for partial stent-in-stent for obstructive jaundice in patients with unresectable malingant hilar part stenosis. - A multicenter prospective study to assess utility and safety of a metal stent with malignant hilar part stenosis.

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000021441

Enrollment

Registered

2016-03-12

Start date

2016-02-15

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

Obstructive jaundice

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. patinets with unresectable malignant hilar part stenosis with histological evidence 2. Bismuth classification II, III, IV 3. ECOG(Eastern Cooperative Oncology Group) performance status 0-3 4. Written informed consent

Exclusion criteria

Exclusion criteria: 1. Inpossibility to reach the scope to the second portion or insert the canula to the papilla 2. Inability to expect efficacy of biliary drainage 3. severe failure of the other organs: ASA classification of 3 or more 4. ECOG performance status 4 5. poor prognosis of 3 months or less 6. post-surgical reconstruction of bile duct

Design outcomes

Primary

Measure	Time frame
Technical success by partial stent-in stent method	—

Countries

Japan

Contacts

Public ContactKentaro Yamao

Kinki University faculty of Medicine Department of Gastroenterology and Hepatology

yamaken_volvo@yahoo.co.jp072-366-0221

Outcome results