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Lymph node evaluation of new dissection techniques to assessment circumferential resection margin

Lymph node evaluation of new dissection techniques to assessment circumferential resection margin - LEARN

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
JPRN
Registry ID
JPRN-UMIN000043342
Enrollment
150
Registered
2021-02-17
Start date
2021-02-17
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

rectal cancer

Interventions

None listed

Sponsors

Kanagawa Cancer Center
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Histologically diagnosed as adenocarcinoma in the 9th edition of the Colorectal Cancer Handling Regulations by preoperative endoscopic biopsy from the primary rectal lesion. The main occupying site of the tumor is in the lower rectum, or the lower edge of the tumor is in the lower rectum. One of the following surgical procedures is planned for rectal cancer. Lower anterior resection (LAR), ultra-low anterior resection (SLAR), abdominal perineal rectal resection (APR), intersphincteric resection (ISR), Hartmann surgery to dissect below the peritoneal inversion, Total colectomy, total pelvic organ resection (TPE) cStage II-III in TNM classification (UICC 8th edition) No history of surgery, chemotherapy, or radiation therapy for primary diseases and pelvic tumors (rectal cancer, gynecological cancer, urological cancer, etc.) Age 20 years or older at the time of enrollment in this study Participants have received sufficient explanation about the research content and have agreed to the document.

Exclusion criteria

Exclusion criteria: Anal canal cancer, anal fistula cancer T4b (a tumor that directly invades other organs or tissues) with wall depth in UICC 8th edition Patients judged by the attending physician to be inappropriate for research

Design outcomes

Primary

MeasureTime frame
Number of lymph node searches

Countries

Japan

Contacts

Public ContactSuguru Nukada

Kanagawa Cancer Center Department of Gastrointestinal Surgery

s.nukada@scchr.jp0455202222

Outcome results

None listed

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