Study on diagnostic accuracy of magnified narrow band imaging (NBI) for small depressive lesion in the stomach

Study on diagnostic accuracy of magnified narrow band imaging (NBI) for small depressive lesion in the stomach - NBI study for gastric small lesion

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-C000000421

Enrollment

100

Registered

2006-05-20

Start date

2006-03-01

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

Gastric cancer

Interventions

Magnified endoscopic examination with NBI system Magnified endoscopic examination without NBI system

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: (1) The reddish depressive lesion within 10mm in length without ulceration and erosion in the stomach (2) Written informed consent (3) 20<=age

Exclusion criteria

Exclusion criteria: (1) Severe concomitant other disease (2) User of anti-coagulant (3) Poor condition to obtain appropriate endoscopic images (4)Any other inappropriate condition for participating this study estimated by physician

Design outcomes

Primary

Measure	Time frame
(1) Diagnostic sensitivity (2) Diagnostic specificity	—

Secondary

Measure	Time frame
Time required for confirming the endoscopic diagnosis	—

Countries

Japan

Contacts

Public ContactYasumasa Ezoe

National Cancer Center Hospital East (NCCHE) Division of Endoscopy & GI oncology

yezoe@east.ncc.go.jp04-7133-1111

Outcome results

None listed

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