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Status unknownNCT02421432Updated Sep 10, 2021

Evaluation of the Safety and the Efficacy of Transanal TME in Difficult Cases

An interventional study of Transanal total mesorectal excision in Rectal Cancer, sponsored by National Cancer Center, Korea. Status unknown at 1 site in Korea, Republic of. Open to participants aged 20 Years to 80 Years. Per ClinicalTrials.gov, last updated 2021-09-10.

Sponsored by National Cancer Center, Korea · Not applicable, Interventional, and Treatment

The sponsor has not verified this record recently (last verified Sep 2021), so the status shown — last known as Active, not recruiting — may be out of date.
Phase
Not applicable
Study type
Interventional
Enrollment
12
Allocation
Not applicable
Ages
20 Years to 80 Years
Sex
All
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Study summary

The purpose of this study is evaluation of the safety and the efficacy of transanal total mesorectal excision in difficult case.

Difficult case is defined as below;

  • If any one of the following (1 or 2 or 3)
  1. BMI: 30 or more
  2. Tumor size: more than 7cm in long diameter
  3. CRM: mesorectal fascia involvement or less than 1 mm on MRI
Read the detailed description

Subjects will have their rectal cancer removed using a technique combining surgery through the anus and standard laparoscopy. Transanal visualization will be using endoscopy. At the end of the procedure, the rectum will be removed though the anus or ileostomy formation site, the bowel will be re-connected to the anus, and a temporary diverting stoma will be created, which is standard of care following surgery for this type of cancer.

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Conditions studied

  • Rectal Cancer

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Keywords

  • trananal TME
  • safety
  • efficacy
  • difficult cases
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In context

Rectal Neoplasms

1,761 studies on the registry are indexed under Rectal Neoplasms; 518 are open to participants now.

This study's enrollment of 12 is below the median of 65 across 1,297 interventional studies indexed under Rectal Neoplasms.

Browse Rectal Neoplasms studies →

Lead sponsor

National Cancer Center, Korea is the lead sponsor of 193 studies on the registry; 34 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
20 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • age: 20-80 years
  • biopsy-proven adenocarcinoma of the rectum
  • clinical staging (c or yc): T0-3, N0-2, M0
  • Rectal cancer located 3-12 cm from the anal verge
  • ECOG performance status: 2 or less
  • If any one of the following (1 or 2 or 3)

    1. BMI: 30 or more
    2. Tumor size: more than 7cm in long diameter
    3. CRM: mesorectal fascia involvement or less than 1 mm on MRI

Exclusion criteria

Exclusion Criteria:

  • Synchronous colon cancer or other malignancy
  • Obstructing rectal cancer
  • Pregnant or breast-feeding
  • Receiving any other study agents
  • Fecal incontinence
  • History of prior colorectal cancer or inflammatory bowel disease
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Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
12 participants (actual)

Study arms

  • Experimental
    Transanal total mesorectal excision

    Laparoscopy-assisted transanal total mesorectal excision

    Procedure: Transanal total mesorectal excision

Interventions

  • ProcedureTransanal total mesorectal excision

    Laparoscopy-assisted transanal total mesorectal excision

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What researchers measure

Primary outcomes

  1. TME quality & circumferential resection margin (CRM)

    The quality of the mesorectum was determined using pathology reports and scored using three grades: * Complete: intact mesorectum with only minor irregularities of a smooth mesorectal surface. No defect is deeper than 5 mm, and there is no coning toward the distal margin of the specimen. There is a smooth circumferential resection margin on slicing. * Nearly complete: moderate bulk to the mesorectum, but irregularity of the mesorectal surface. Moderate coning of the specimen is allowed. At no site is the muscularis propria visible, with the exception of the insertion of the levator muscles. * Incomplete: little bulk to mesorectum with defects down onto muscularis propria and/or very irregular circumferential resection margin.

    Time frame: the day of surgery

Secondary outcomes

  1. 30-day postoperative complications

    The Clavien-Dindo Classification of Surgical Complications. Grade I: Any deviation from the normal postoperative course without the need for pharmacological treatment or surgical, endoscopic and radiological interventions. Grade II: Requiring pharmacological treatment with drugs other than such allowed for grade I complications. Grade III: : Requiring surgical, endoscopic or radiological intervention. Grade IV: Life-threatening complication (including CNS complications)‡ requiring IC/ICU-management. Grade V: Death of a patient

    Time frame: 1 month after surgery

  2. Number of harvested Lymph Nodes

    Time frame: the day of surgery

Other outcomes

  1. 2-year local recurrence free survival

    Time frame: 2 years after surgery

  2. 5-year overall survival

    Time frame: 5 years after surgery

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Study locations

1 site
  • National Cancer Center
    Goyang-si, Gyeonggi-do 410-769, Korea, Republic of
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 10, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT02421432
Lead sponsor
National Cancer Center, Korea
Responsible party
Dae Kyung Sohn (MD., PHD., National Cancer Center, Korea) — Principal investigator
First posted
Apr 20, 2015
Start date
Dec 1, 2017
Primary completion
Jan 1, 2018
Completion
Dec 1, 2022 (estimated)
Last update
Sep 10, 2021

Study contacts

Dae Kyung Sohn, MD, PHD
principal investigator · Korea: National Cancer Center

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Sep 2021. You cannot join it, but the record below documents what was studied.

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