UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000055093
Receipt number R000062937
Scientific Title Endocuff Vision-Assisted Colonoscopy Significantly Improves Adenoma Detection In A Shorter Withdrawal Time Compared With Standard Colonoscopy: A Randomized Controlled Trial
Date of disclosure of the study information 2024/07/28
Last modified on 2024/07/28 20:22:27

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Basic information

Public title

Endocuff Vision-Assisted Colonoscopy Significantly Improves Adenoma Detection In A Shorter Withdrawal Time Compared With Standard Colonoscopy: A Randomized Controlled Trial

Acronym

Endocuff Vision-assisted Colonoscopy

Scientific Title

Endocuff Vision-Assisted Colonoscopy Significantly Improves Adenoma Detection In A Shorter Withdrawal Time Compared With Standard Colonoscopy: A Randomized Controlled Trial

Scientific Title:Acronym

Endocuff Vision-assisted Colonoscopy

Region

Asia(except Japan)


Condition

Condition

Colonoscopy is considered the most effective method for detecting and removing colorectal adenomas and is recommended as the primary screening modality for CRC, and missing these lesions is related to interval CRC. The colon has angulated segments and haustral bends, which create blind areas and potentially lead to missed adenomas. Therefore, the development of devices attached to the distal end of a colonoscope that helps to flatten such areas and expose the mucosa is potentially useful. Endocuff Vision (Olympus Co., Ltd., Tokyo, Japan) is a device made of a plastic barrel with a row of flexible and soft arms [6]. This device is attached to the tip of the colonoscope, helping to flatten the mucosal folds during the withdrawal phase Although several studies in Western countries have shown that Endocuff Vision-assisted colonoscopy (EC) can improve the colorectal adenoma detection rate (ADR), such evidence in Asia is still scarce.

Classification by specialty

Gastroenterology

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

This study aims to evaluate the performance of Endocuff Vission-assisted colonoscopy (EC) in terms of ADR compared with that of standard colonoscopy (SC) for detecting colorectal adenomas in Vietnamese patients.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1

Others

Trial characteristics_2

Others

Developmental phase

Not applicable


Assessment

Primary outcomes

colorectal adenoma detection rate (ADR)

Key secondary outcomes

1. the ADR and polyp detection rate (PDR), the advanced adenoma detection rate (AADR) and the serrated sessile lesion detection rate (SSLDR)
2. the mean number of adenomas per procedure (MAP) and the mean number of polyps per procedure (MPP)
3. the cecal intubation time and the withdrawal time
4. the difficulty of scope insertion assessed by endoscopists


Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Cluster

Blinding

Single blind -participants are blinded

Control

No treatment

Stratification

YES

Dynamic allocation

NO

Institution consideration

Institution is not considered as adjustment factor.

Blocking

YES

Concealment

Numbered container method


Intervention

No. of arms

2

Purpose of intervention

Diagnosis

Type of intervention

Device,equipment

Interventions/Control_1

Endocuff Vission-assisted colonoscopy

Interventions/Control_2

Standard colonoscopy

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

40 years-old <=

Age-upper limit

75 years-old >

Gender

Male and Female

Key inclusion criteria

Subjects aged >= 40 years who were referred for colonoscopy due to clinical symptoms or for CRC screening

Key exclusion criteria

Individuals who met any of the following criteria were excluded: (i) history of colorectal surgery or polypectomy, (ii) preendoscopic suspicion of colorectal obstruction, (iii) known colonic stricture or severe diverticulosis, (iv) uncorrected coagulation disorders or ongoing anticoagulant therapy that had not been appropriately discontinued, (v) inadequate bowel preparation, or (vi) incomplete colonoscopy.

Target sample size

228


Research contact person

Name of lead principal investigator

1st name Duc
Middle name Trong
Last name Quach

Organization

University of Medicine and Pharmacy at Ho Chi Minh City

Division name

Department of Internal Medicine

Zip code

700000

Address

217 Hong Bang Street, Ward 11, District 5, Ho Chi Minh City, Vietnam

TEL

84918080225

Email

drquachtd@gmail.com


Public contact

Name of contact person

1st name Duc
Middle name Trong
Last name Quach

Organization

University of Medicine and Pharmacy at Ho Chi Minh City

Division name

Department of Internal Medicine

Zip code

700000

Address

217 Hong Bang Street, Ward 11, District 5, Ho Chi Minh City, Vietnam

TEL

84918080225

Homepage URL


Email

drquachtd@gmail.com


Sponsor or person

Institute

University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Vietnam

Institute

Department

Personal name

Ngo Quoc Dat


Funding Source

Organization

Olympus Vietnam Co., Ltd

Organization

Division

Category of Funding Organization

Non profit foundation

Nationality of Funding Organization

Japanese


Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Board of Ethics in Biomedical Research of the University of Medicine and Pharmacy at Ho Chi Minh City, Vietnam

Address

217 Hong Bang Street, Ward 11, District 5, Ho Chi Minh City, Vietnam

Tel

842838558411

Email

nghiencuukhoahoc@ump.edu.vn


Secondary IDs

Secondary IDs

NO

Study ID_1

831/HDDD-DHYD

Org. issuing International ID_1

Board of Ethics in Biomedical Research of the University of Medicine and Pharmacy at Ho Chi Minh City, Vietnam

Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions

University Medical Center Ho Chi Minh City, Vietnam


Other administrative information

Date of disclosure of the study information

2024 Year 07 Month 28 Day


Related information

URL releasing protocol

Not applicable

Publication of results

Unpublished


Result

URL related to results and publications

Not applicable

Number of participants that the trial has enrolled

497

Results

Compared with the SC group, the EV group had significantly higher ADRs (0.357 vs. 0.226, p = 0.002) and MAPs (0.68 vs. 0.39, p = 0.004). The intubation durations were comparable between the two groups. The withdrawal time in the EC group was shorter than that in the SC group (median [seconds]: 266 [IR: 224, 314] vs. 360 [IR: 310, 390], p < 0.001).

Results date posted

2024 Year 07 Month 28 Day

Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics

There were 476 participants (241 in the EC group, 235 in the SC group) with a median age of 52 (interquartile range [IR]: 46, 58) years. There were no significant differences between the two groups regarding age, sex, smoking status, family history of colorectal cancer or indications for colonoscopy.

Participant flow

A total of 497 subjects were randomly assigned to the EC or SC group and underwent colonoscopy. One subject in the EC group required removal of the Endocuff Vision device due to severe diverticulosis. After excluding additional subjects who had inadequate bowel preparation and/or incomplete colonoscopy, 476 participants (241 in the EC group and 235 in the SC group) were included

Adverse events

No adverse events were observed.

Outcome measures

There were no significant differences between the two groups regarding age, sex, smoking status, family history of colorectal cancer or indications for colonoscopy. Compared with the SC group, the EV group had significantly higher ADRs (35.7% vs. 22.6%, p = 0.002) and MAPs (0.68 vs. 0.39, p = 0.004). The intubation durations were comparable between the two groups. The withdrawal time in the EC group was shorter than that in the SC group (median [seconds]: 266 [IR: 224, 314] vs. 360 [IR: 310, 390], p < 0.001).

Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

No longer recruiting

Date of protocol fixation

2021 Year 10 Month 03 Day

Date of IRB

2021 Year 11 Month 03 Day

Anticipated trial start date

2022 Year 11 Month 01 Day

Last follow-up date

2023 Year 06 Month 30 Day

Date of closure to data entry

2023 Year 08 Month 30 Day

Date trial data considered complete

2023 Year 08 Month 30 Day

Date analysis concluded

2023 Year 10 Month 30 Day


Other

Other related information



Management information

Registered date

2024 Year 07 Month 28 Day

Last modified on

2024 Year 07 Month 28 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000062937