UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000057045
Receipt number R000065198
Scientific Title Comparison of In-Hospital and At-Home Administration of Bowel Preparation Agents Before Outpatient Colonoscopy in Elderly Patients
Date of disclosure of the study information 2025/02/16
Last modified on 2025/02/16 15:50:58

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Basic information

Public title

Comparison of In-Hospital and At-Home Administration of Bowel Preparation Agents Before Outpatient Colonoscopy in Elderly Patients

Acronym

Bowel preparation methods for the elderly

Scientific Title

Comparison of In-Hospital and At-Home Administration of Bowel Preparation Agents Before Outpatient Colonoscopy in Elderly Patients

Scientific Title:Acronym

Bowel preparation methods for the elderly

Region

Japan


Condition

Condition

Elderly people aged 70 and over

Classification by specialty

Gastroenterology

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

This study compared the outcomes of in-hospital (Group A) versus at-home (Group B) bowel preparation in elderly patients to clarify the usefulness of in-hospital bowel preparation.

Basic objectives2

Safety,Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

bowel preparation time

Key secondary outcomes



Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Non-randomized

Randomization unit


Blinding

Open -but assessor(s) are blinded

Control

Active

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

2

Purpose of intervention

Prevention

Type of intervention

Maneuver

Interventions/Control_1

in-hospital bowel preparation

Interventions/Control_2

at-home bowel preparation

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

70 years-old <=

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

The study participants were outpatients aged 70 years or older who had consented to participate in the study and were undergoing a colonoscopy.

Key exclusion criteria

Patients aged 69 years or younger, those unable to take the bowel preparation agents themselves, those who did not understand how to take the bowel preparation agents, and those unable to undergo the colonoscopy on the same day as they took the bowel preparation agents were excluded. In addition, patients with serious complications (heart failure, renal failure, hepatic failure, respiratory failure), pregnant women, lactating women, and patients with a history of allergy to the study drug were excluded.

Target sample size

151


Research contact person

Name of lead principal investigator

1st name Daisuke
Middle name
Last name Yamaguchi

Organization

National Hospital Organization Ureshino Medical Center

Division name

Gastroenterology

Zip code

8430393

Address

4279-3 Shimojyukukou, Ureshino city, Saga

TEL

0954431120

Email

daisukehawks@gmail.com


Public contact

Name of contact person

1st name Daisuke
Middle name
Last name Yamaguchi

Organization

National Hospital Organization Ureshino Medical Center

Division name

Gastroenterology

Zip code

8430393

Address

4279-3 Shimojyukukou, Ureshino city, Saga

TEL

0954431120

Homepage URL


Email

daisukehawks@gmail.com


Sponsor or person

Institute

National Hospital Organization Ureshino Medical Center (Clinical Research Department)

Institute

Department

Personal name

Daisuke Yamaguchi


Funding Source

Organization

None

Organization

Division

Category of Funding Organization

Other

Nationality of Funding Organization

Japan


Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

the Ethics Review Committee of the National Hospital Organization Ureshino Medical Center

Address

4279-3 Shimojyukukou, Ureshino city, Saga

Tel

0954431120

Email

daisukehawks@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 02 Month 16 Day


Related information

URL releasing protocol

https://ureshino.hosp.go.jp/about/ethics.html

Publication of results

Partially published


Result

URL related to results and publications

https://ureshino.hosp.go.jp/about/ethics.html

Number of participants that the trial has enrolled

151

Results

After PSM, 26 matched pairs were analyzed. Group A had a significantly shorter bowel preparation time (192.1 vs. 271.1 minutes, P<0.001), shorter time from preparation to colonoscopy (259.3 vs. 341.4 minutes, P<0.001), and fewer defecations (8.5vs. 11.2, P<0.001) than Group B.

Results date posted

2025 Year 02 Month 16 Day

Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics

151 patients aged 70 years or older undergoing outpatient colonoscopy

Participant flow

151 patients were prospectively enrolled (51 in Group A and 100 in Group B).

Adverse events

There were no significant intergroup differences in adverse events.

Outcome measures

26 matched pairs were analyzed. Group A had a significantly shorter bowel preparation time (192.1 vs. 271.1 minutes, P<0.001), shorter time from preparation to colonoscopy (259.3 vs. 341.4 minutes, P<0.001), and fewer defecations (8.5 vs. 11.2, P<0.001) than Group B.

Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

No longer recruiting

Date of protocol fixation

2022 Year 05 Month 23 Day

Date of IRB

2022 Year 07 Month 28 Day

Anticipated trial start date

2022 Year 09 Month 01 Day

Last follow-up date

2023 Year 09 Month 30 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information



Management information

Registered date

2025 Year 02 Month 16 Day

Last modified on

2025 Year 02 Month 16 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000065198