UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000062103
Receipt number R000071059
Scientific Title A Study on the Effects of Variations in Intraoperative Intraperitoneal Irrigation Volume on Short- and Long-Term Outcomes in Cases of Colorectal Surgery
Date of disclosure of the study information 2026/07/01
Last modified on 2026/06/30 15:49:10

* This page includes information on clinical trials registered in UMIN clinical trial registed system.
* We don't aim to advertise certain products or treatments


Basic information

Public title

A Study on the Effects of Variations in Intraoperative Intraperitoneal Irrigation Volume on Short- and Long-Term Outcomes in Cases of Colorectal Surgery

Acronym

A Study on the Effects of Variations in Intraoperative Intraperitoneal Irrigation Volume on Short- and Long-Term Outcomes in Cases of Colorectal Surgery

Scientific Title

A Study on the Effects of Variations in Intraoperative Intraperitoneal Irrigation Volume on Short- and Long-Term Outcomes in Cases of Colorectal Surgery

Scientific Title:Acronym

A Study on the Effects of Variations in Intraoperative Intraperitoneal Irrigation Volume on Short- and Long-Term Outcomes in Cases of Colorectal Surgery

Region

Japan


Condition

Condition

Colorectal cancer

Classification by specialty

Surgery in general Gastrointestinal surgery

Classification by malignancy

Malignancy

Genomic information

YES


Objectives

Narrative objectives1

In laparoscopic surgery for colorectal diseases, intra-abdominal anastomosis has been reported to improve short-term postoperative outcomes compared to the extraperitoneal anastomosis that has been performed to date. On the other hand, there is insufficient data regarding long-term outcomes, such as the risk of postoperative infection and peritoneal seeding, associated with exposing the bowel within the abdominal cavity. Therefore, we will investigate the impact on short-term and long-term outcomes by comparing two groups: one in which intra-abdominal lavage is performed with 3 L of saline solution after anastomosis, and another in which 6 L of saline solution is used.

Basic objectives2

Others

Basic objectives -Others

Results of peritoneal lavage fluid cultures (at two time points: start and end of lavage), blood tests, and key biomarkers.
Incidence of peritoneal seeding recurrence (cancer-related markers such as CEA, CA19-9, RAS, BRAF, MSI, HER2)

Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Perioperative complications and long-term outcomes (3- and 5-year overall survival and recurrence-free survival)

Key secondary outcomes



Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Open -no one is blinded

Control

Active

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

2

Purpose of intervention

Treatment

Type of intervention

Other

Interventions/Control_1

For patients who have undergone intraperitoneal anastomosis for colorectal cancer, perform intra-abdominal lavage with 3 L of saline solution after the anastomosis.

Interventions/Control_2

For patients who have undergone intraperitoneal anastomosis for colorectal cancer, perform intra-abdominal lavage with 6 L of saline solution after the anastomosis.

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

20 years-old <=

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

Patients scheduled for intraperitoneal anastomosis for colorectal cancer

Key exclusion criteria

Active multiple cancers

Target sample size

400


Research contact person

Name of lead principal investigator

1st name Hiroshi
Middle name
Last name Okuda

Organization

NHO Higashihiroshima Medical Center

Division name

Department of Gastrointestinal Surgery

Zip code

739-0041

Address

513 Jike, Saijocho, Higashihiroshima City

TEL

082-423-2176

Email

hokuda.2nd-s@go5.enjoy.ne.jp


Public contact

Name of contact person

1st name Maki
Middle name
Last name Shinhara

Organization

NHO Higashihiroshima Medical Center

Division name

Department of Clinical Research

Zip code

739-0041

Address

513 Jike, Saijocho, Higashihiroshima City

TEL

082-423-2176

Homepage URL


Email

shinhara.maki.un@mail.hosp.go.jp


Sponsor or person

Institute

NHO Higashihiroshima Medical Center

Institute

Department

Personal name



Funding Source

Organization

None

Organization

Division

Category of Funding Organization

Other

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

NHO Higashihiroshima Medical Center

Address

513 Jike, Saijocho, Higashihiroshima City

Tel

082-423-2176

Email

shinhara.maki.un@mail.hosp.go.jp


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

2026 Year 07 Month 01 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


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

Open public recruiting

Date of protocol fixation

2024 Year 04 Month 10 Day

Date of IRB

2024 Year 04 Month 10 Day

Anticipated trial start date

2024 Year 04 Month 10 Day

Last follow-up date

2039 Year 12 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information



Management information

Registered date

2026 Year 06 Month 30 Day

Last modified on

2026 Year 06 Month 30 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/icdr_e/ctr_view.cgi?recptno=R000071059