Skip to content

A prospective study on the resection depth of underwater cold snare polypectomy (U-CSP) for superficial nonampullary duodenal epithelial tumors

A prospective study on the resection depth of underwater cold snare polypectomy (U-CSP) for superficial nonampullary duodenal epithelial tumors - U-CSP study

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000051373
Enrollment
30
Registered
2023-06-19
Start date
2023-12-26
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

Superficial nonampullary duodenal epithelial tumor

Interventions

Underwater cold snare polypectomy (U-CSP) group

Sponsors

Nagasaki University
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1) Superficial nonampullary duodenal epithelial tumors with a size between 2 mm to 10 mm. 2) Patients who are able to discontinue antithrombotic agents according to the guidelines.

Exclusion criteria

Exclusion criteria: 1) Lesions near the papillae 2) Lesions suspected carcinoma by endoscopic findings (not excluding those diagnosed as intramucosal carcinoma by excisional pathological diagnosis) 3) Residual lesions after endoscopic resection 4) Patients with FAP or Lynch syndrome 5) Patients with hematological abnormality 6) Patients with severe organ failure 7) Patients who have been judged as inappropriate for this study

Design outcomes

Primary

MeasureTime frame
Resection depth

Secondary

MeasureTime frame
Submucosal area in the resected specimen The proportion of the presence of the muscularis mucosa in the resected specimen En bloc resection rate R0 resection rate Remnant/recurrence rate at 3 months later after procedure Procedure time Adverse events rate Association of the resection depth with disease or treatment factors

Countries

Japan

Contacts

Public ContactKeiichi Hashiguchi

Nagasaki University Hospital Department of Endoscopy

khashiguchi@nagasaki-u.ac.jp095-819-7489

Outcome results

None listed

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