Comparative trial of diagnositic ability for colorectal tumor of Narrow band imaging (NBI), Blue laser imaging (BLaI) and Blue light imaging (BLiI)

Phase 3

• Conditions: Colorectal tumor

• Registration Number: JPRN-UMIN000032107
• Lead Sponsor: Yokohama City University

Brief Summary

In non-inferiority test, Laser-BLI and LED-BLI revealed non-inferiority to NBI in all NICE and JNET categories (p<0.001).

Detailed Description

Not available

Study Timeline

• Results First Posted: 1900-01-01
• Study Start: 2018-04-04
• Study Completion: 2020-03-31
• Last Update Posted: 17 October 2023

Recruitment & Eligibility

• Status: Complete: follow-up complete
• Sex: All
• Target Recruitment: 230

Inclusion Criteria

Not provided

Exclusion Criteria

Patients judged inappropriate for the trial by investigators

Study & Design

• Study Type: Interventional
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Precise diagnosis rate of NBI, BLaI and BLiI for colorectal polyps

Secondary Outcome Measures

Name	Time	Method
Colorectal tumor is diagnosed to Type1,Type2,Type3 according to NICE(NBI International Colorectal Endoscopic)classification and to Type1,Type2A,Type2B,Type3 according to JNET(Japan NBI expert team)classification (1)Sensitivity, secificity, PPV, NPV for non neoplastic and neoplastic tumor (2)Sensitivity, secificity, PPV, NPV for SM deep invasion tumor and CIS, SM sligt invasion tumor