Efficacy and safety of underwater precutting endoscopic mucosal resection for colorectal polyps 20-30mm in size: a prospective single center study

Efficacy and safety of underwater precutting endoscopic mucosal resection for colorectal polyps 20-30mm in size: a prospective single center study - Uper trial

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000058757

Enrollment

Registered

2025-08-12

Start date

2025-03-01

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

a single clinically diagnosed colorectal polyps measuring 20 to 30 mm in size

Interventions

All patients provided written informed consent to participate in this study. The colorectal polyps measuring 20 to 30 mm in size is resected by Underwater precutting EMR. All patients were followed up

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: The inclusion criteria were as follows: 1. a single clinically diagnosed colorectal polyps measuring 20 to 30 mm in size, 2 age > 20 years; 3 Eastern Cooperative Oncology Group performance status of 0-1.

Exclusion criteria

Exclusion criteria: The exclusion criteria were as follows: (1) inflammatory bowel disease, (2) familial polyposis syndrome (3) clinically diagnosed invasive cancer (4) recurrent lesion (5) scheduled for surgery for active cancer (6) blood coagulation disorder (7) hemodialysis (8) severe heart disease (9) psychiatric disorder (10) pregnancy.

Design outcomes

Primary

Measure	Time frame
R0 resection rate	—

Countries

Japan

Contacts

Public ContactKazuo Shiotsuki

Kanagawa Cancer Center Department of Gastroenterology

k.shiotsuki19881014@gmail.com045-520-2222

Outcome results

None listed

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