UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000056802
Receipt number R000064921
Scientific Title Delayed Versus Immediate Coloanal Anastomosis Following Total Mesorectal Excision for Low Rectal Cancer: An International Multicenter Retrospective Cohort Study
Date of disclosure of the study information 2025/01/24
Last modified on 2025/01/24 08:20:33

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Basic information

Public title

Delayed Versus Immediate Coloanal Anastomosis Following Total Mesorectal Excision for Low Rectal Cancer: An International Multicenter Retrospective Cohort Study

Acronym

DCAA vs ICAA

Scientific Title

Delayed Versus Immediate Coloanal Anastomosis Following Total Mesorectal Excision for Low Rectal Cancer: An International Multicenter Retrospective Cohort Study

Scientific Title:Acronym

DCAA vs ICAA

Region

Japan Asia(except Japan)


Condition

Condition

Low Rectal Cancer

Classification by specialty

Gastrointestinal surgery

Classification by malignancy

Malignancy

Genomic information

NO


Objectives

Narrative objectives1

To compare postoperative outcomes between DCAA and ICAA following elective total mesorectal excision (TME) for low rectal cancer.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

the 30-day overall postoperative complication rate

Key secondary outcomes



Base

Study type

Observational


Study design

Basic design


Randomization


Randomization unit


Blinding


Control


Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms


Purpose of intervention


Type of intervention


Interventions/Control_1


Interventions/Control_2


Interventions/Control_3


Interventions/Control_4


Interventions/Control_5


Interventions/Control_6


Interventions/Control_7


Interventions/Control_8


Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit

18 years-old <=

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

Patients 18 years or older of age who underwent minimally invasive TME with hand-sewn coloanal anastomosis for primary low rectal adenocarcinoma between January 2017 and July 2023

Key exclusion criteria

Tumor-related exclusion criteria included recurrent tumors, multiple primary tumors, and non-adenocarcinomas such as neuroendocrine tumors and gastrointestinal stromal tumors. The procedure-related exclusion criteria included open surgery, emergency surgery, and multivisceral resection/pelvic exenteration. Stapled coloanal anastomosis, DCAA with a diverting stoma, and ICAA without a diverting stoma were also excluded.

Target sample size

305


Research contact person

Name of lead principal investigator

1st name Isaac
Middle name
Last name Seow-En

Organization

Singapore General Hospital

Division name

Department of Colorectal Surgery

Zip code

169608

Address

Outram Road, 169608, Singapore

TEL

+65-6222-3322

Email

isaac.seow.en@gmail.com


Public contact

Name of contact person

1st name Isaac
Middle name
Last name Seow-En

Organization

Singapore General Hospital

Division name

Department of Colorectal Surgery

Zip code

169608

Address

Outram Road, 169608, Singapore

TEL

+65-6222-3322

Homepage URL


Email

isaac.seow.en@gmail.com


Sponsor or person

Institute

Singapore General Hospital

Institute

Department

Personal name



Funding Source

Organization

self-procurement

Organization

Division

Category of Funding Organization

Self funding

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Singapore General Hospital

Address

Outram Road, 169608, Singapore

Tel

+65-6222-3322

Email

isaac.seow.en@gmail.com


Secondary IDs

Secondary IDs

NO

Study ID_1


Org. issuing International ID_1


Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions



Other administrative information

Date of disclosure of the study information

2025 Year 01 Month 24 Day


Related information

URL releasing protocol


Publication of results

Unpublished


Result

URL related to results and publications


Number of participants that the trial has enrolled

305

Results


Results date posted


Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics


Participant flow


Adverse events


Outcome measures


Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Completed

Date of protocol fixation

2024 Year 02 Month 01 Day

Date of IRB

2024 Year 02 Month 27 Day

Anticipated trial start date

2024 Year 03 Month 01 Day

Last follow-up date

2024 Year 09 Month 30 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

Observational study


Management information

Registered date

2025 Year 01 Month 24 Day

Last modified on

2025 Year 01 Month 24 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000064921