UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000060980
Receipt number R000069780
Scientific Title A novel fine-caliber strategy for EUS-guided hepaticogastrostomy using a 22-gauge needle and 0.018-inch guidewire: a multicenter prospective study
Date of disclosure of the study information 2026/04/01
Last modified on 2026/03/19 07:45:55

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Basic information

Public title

A novel fine-caliber strategy for EUS-guided hepaticogastrostomy using a 22-gauge needle and 0.018-inch guidewire: a multicenter prospective study

Acronym

A novel fine-caliber strategy for EUS-guided hepaticogastrostomy using a 22-gauge needle and 0.018-inch guidewire: a multicenter prospective study

Scientific Title

A novel fine-caliber strategy for EUS-guided hepaticogastrostomy using a 22-gauge needle and 0.018-inch guidewire: a multicenter prospective study

Scientific Title:Acronym

A novel fine-caliber strategy for EUS-guided hepaticogastrostomy using a 22-gauge needle and 0.018-inch guidewire: a multicenter prospective study

Region

Japan


Condition

Condition

Biliary stricture

Classification by specialty

Hepato-biliary-pancreatic medicine

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

Technical feasibility

Basic objectives2

Safety

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Primary outcome:
Technical success rate
Definition:
Technical success is defined as successful placement of a stent in the target bile duct using a 22-gauge needle and the J-Wire NM (0.018-inch guidewire) during EUS-guided hepaticogastrostomy. No restriction is imposed on the type of stent used.

Key secondary outcomes

a) Adverse events: incidence and types
Adverse events will be evaluated in accordance with the criteria of the American Society for Gastrointestinal Endoscopy. The definitions of anticipated adverse events are as follows:
Bleeding: Presence of overt bleeding such as hematemesis or melena, or a decrease in hemoglobin level of >2g/dL on the day following the procedure.
Perforation: Perforation associated with the endoscopic procedure.
b) Procedure time
Procedure time is defined as the interval from bile duct puncture to completion of stent placement.
c) Use of dilation devices and their types
Dilation is not routinely performed. However, dilation is permitted when insertion of the stent delivery system is not feasible. No restriction is imposed on the type of dilation device used.


Base

Study type

Interventional


Study design

Basic design

Single arm

Randomization

Non-randomized

Randomization unit


Blinding

Open -no one is blinded

Control

Uncontrolled

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

1

Purpose of intervention

Treatment

Type of intervention

Device,equipment

Interventions/Control_1

22G, 0.018-inch guidewire

Interventions/Control_2


Interventions/Control_3


Interventions/Control_4


Interventions/Control_5


Interventions/Control_6


Interventions/Control_7


Interventions/Control_8


Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit

18 years-old <=

Age-upper limit

99 years-old >

Gender

Male and Female

Key inclusion criteria

Patients with biliary stricture in whom Endoscopic Retrograde Cholangiopancreatography is difficult or unsuccessful
Age >18 years and <99 years at the time of enrollment
Written informed consent obtained from the patient prior to participation in the study

Key exclusion criteria

Exclusion criteria:
Patients with severe bleeding tendency or pregnancy
Patients who have already undergone alternative biliary drainage procedures

Target sample size

20


Research contact person

Name of lead principal investigator

1st name Takeshi
Middle name
Last name Ogura

Organization

Osaka Medical and Pharmaceutical University Hospital

Division name

Pancreatobiliary Advanced Medical Center

Zip code

5698686

Address

2-7 Daigakuchou, Takatsukishi, Osaka

TEL

+81-726831221

Email

oguratakeshi0411@yahoo.co.jp


Public contact

Name of contact person

1st name Takeshi
Middle name
Last name Ogura

Organization

Osaka Medical and Pharmaceutical University Hospital

Division name

Pancreatobiliary Advanced Medical Center

Zip code

5698686

Address

2-7 Daigakuchou, Takatsukishi

TEL

+81-726831221

Homepage URL


Email

oguratakeshi0411@yahoo.co.jp


Sponsor or person

Institute

Osaka Medical and Pharmaceutical University

Institute

Department

Personal name



Funding Source

Organization

Osaka Medical and Pharmaceutical University Hospital

Organization

Division

Category of Funding Organization

Self funding

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

the Human Research Committee of Osaka Medical and Pharmaceutical University

Address

2-7 Daigakuchou, Takatsukishi

Tel

+81-726831221

Email

rinri@ompu.ac.jp


Secondary IDs

Secondary IDs

NO

Study ID_1


Org. issuing International ID_1


Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions



Other administrative information

Date of disclosure of the study information

2026 Year 04 Month 01 Day


Related information

URL releasing protocol


Publication of results

Unpublished


Result

URL related to results and publications


Number of participants that the trial has enrolled


Results


Results date posted


Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics


Participant flow


Adverse events


Outcome measures


Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Enrolling by invitation

Date of protocol fixation

2025 Year 11 Month 26 Day

Date of IRB

2026 Year 03 Month 11 Day

Anticipated trial start date

2026 Year 04 Month 01 Day

Last follow-up date

2030 Year 11 Month 01 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information



Management information

Registered date

2026 Year 03 Month 19 Day

Last modified on

2026 Year 03 Month 19 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000069780