Aspiration Method of Endoscopic Ultrasound-Guided Fine-needle Aspiration for Solid Pancreatic Mass. -The Prospective Cross Over Trial of EUS-FNA Using 22G Aspiration with Conventional Method or Knocking The Door Method for Solid Pancreatic Mass, Multicenter Clinical Study-

Aspiration Method of Endoscopic Ultrasound-Guided Fine-needle Aspiration for Solid Pancreatic Mass. -The Prospective Cross Over Trial of EUS-FNA Using 22G Aspiration with Conventional Method or Knocking The Door Method for Solid Pancreatic Mass, Multicenter Clinical Study- - The Prospective Cross Over Trial of EUS-FNA Using 22G Aspiration with Conventional Method or Knocking The Door Method, Multicenter Clinical Study.

Status

Active, not recruiting

Phases

Phase 1

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000012127

Enrollment

Registered

2013-10-26

Start date

2013-10-01

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

Solid pancreatic mass

Interventions

At first and third aspiration,EUS-FNA using conventional method is performed. At second and forth aspiration, EUS-FNA using knocking door method is performed. At first and third aspiration,EUS-FNA us

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1) Patients with solid pancreatic mass, which can be punctured from stomach or duodenum using 22G safely. 2) Patients consent to be included in the study based on his/her own free will after sufficient informing and understanding of the study.

Exclusion criteria

Exclusion criteria: 1) Cases in Perfomance status 4 2)Cases with sever complication in other organs except original disease (ASA classification more than 3) 3)Cases having impossibility of cessation of anticoagulant 4)Cases with pregnancy or suspect of pregnancy 5)Cases having difficulty in endoscopic approach 6)Cases with definite diagnosis by another biopsy 7) Cases having difficulty in visualization of mass on EUS 8)Cases judged by principal investigator to be inadequate as subjects

Design outcomes

Primary

Measure	Time frame
Accuracy rate	—

Secondary

Measure	Time frame
Quality of tissue specimen Complications	—

Countries

Japan

Contacts

Public ContactShuntaro Mukai

Tokyo Medical University Department of Gastroenterology and Hepatology

d-somu@tokyo-med.ac.jp03-3342-6111

Outcome results

None listed

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