Evaluation of Optimal White Core Specimen Length Obtained by EUS-FNAB with 22-gauge Franseen Needle -A Single-Center Prospective Pilot Traial-

Evaluation of Optimal White Core Specimen Length Obtained by EUS-FNAB with 22-gauge Franseen Needle -A Single-Center Prospective Pilot Traial- - Evaluation of Optimal Specimen Obtained by EUS-FNAB

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000030773

Enrollment

Registered

2018-01-11

Start date

2018-03-05

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

Subepitheliai lesions in the upper gastrointestinal tract

Interventions

22-gauge franseen needle

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1) subepitelial lesions in upper gastrointestinal tract which are required EUS-FNAB 2) providing written informed consent, and age =or >20

Exclusion criteria

Exclusion criteria: 1) high risk of puncturing cystic part 2) bleeding disorders 3) patients whose participation in the trial was judged to be inappropriate by the investigator

Design outcomes

Primary

Measure	Time frame
optimal white biopsy specimen length (cut-off value)	—

Secondary

Measure	Time frame
diagnostic accuracy tissue acquisition rate adverse event rate	—

Countries

Japan

Contacts

Public ContactKosuke Okuwaki

Kitasato University School of Medicine Department of Gastroenterology

kokuwaki@kitasato-u.ac.jp+81-42-778-8111

Outcome results

None listed

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