Diagnosis of autoimmune pancreatitis by EUS-FNA using a 22-gauge needle: a prospective multicenter study

Diagnosis of autoimmune pancreatitis by EUS-FNA using a 22-gauge needle: a prospective multicenter study - Diagnosis of AIP by EUS-FNA using a 22-gauge needle

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000010097

Enrollment

Registered

2013-02-22

Start date

2013-02-22

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

Autoimmune pancreatitis

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1)Cases suspected of AIP 2)Cases with written oral informed consent after the oral explanation 3)Cases with performance status (PS) 0-1

Exclusion criteria

Exclusion criteria: 1)Cases with hemorrhagic tendency 2)Cases with difficulty in the insertion of a endoscope 3)Cases that endoscopist cannot detect the swelling of the pancreas by EUS due to past history of anastomosis of the gastrointestinal tract such as gastrectomy 4)Cases with severe complications 5)Cases that doctors regard as inappropriate ones for the enrollmentfor some reasons

Design outcomes

Primary

Measure	Time frame
To validate the histological specimen obtained by EUS-FNA using 1 22G needle for the diagnosis of AIP based on the ICDC.	—

Secondary

Measure	Time frame
Feasible study of the EUS-FNA using a 22G needle for the diagnosis of atypical cases with AIP (type 2 or AIP-NOS).	—

Countries

Japan

Contacts

Public ContactAtsushi Kanno

Tohoku University Hospital Department of Gastroenterology

atsushih@med.tohoku.ac.jp022-717-7171

Outcome results