UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000061206
Receipt number R000070036
Scientific Title A Comparative Study of the Effectiveness of Brushing and L8020 Application in Reducing Oral Bacterial Counts in Intubated Patients: A Preliminary Study
Date of disclosure of the study information 2026/04/09
Last modified on 2026/04/09 06:36:58

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Basic information

Public title

A Comparative Study of the Effectiveness of Brushing and L8020 Application in Reducing Oral Bacterial Counts in Intubated Patients: A Preliminary Study

Acronym

A Comparative Study of the Effectiveness of Brushing and L8020 Application in Reducing Oral Bacterial Counts in Intubated Patients

Scientific Title

A Comparative Study of the Effectiveness of Brushing and L8020 Application in Reducing Oral Bacterial Counts in Intubated Patients: A Preliminary Study

Scientific Title:Acronym

A Comparative Study of the Effectiveness of Brushing and L8020 Application in Reducing Oral Bacterial Counts in Intubated Patients: A Preliminary Study

Region

Japan


Condition

Condition

Patients on endotracheal intubation

Classification by specialty

Dental medicine

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

This study examines patients under endotracheal intubation to determine whether brushing or the application of L8020 mouthwash which has an inhibitory effect on periodontal and cariogenic bacteria is more effective at reducing bacterial counts in oropharyngeal fluid.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1

Confirmatory

Trial characteristics_2

Others

Developmental phase

Phase II


Assessment

Primary outcomes

oral bacterial count

Key secondary outcomes



Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Open -no one is blinded

Control

Placebo

Stratification

NO

Dynamic allocation

YES

Institution consideration

Institution is not considered as adjustment factor.

Blocking

NO

Concealment

Central registration


Intervention

No. of arms

2

Purpose of intervention

Treatment

Type of intervention

Maneuver

Interventions/Control_1

After performing oral care, apply L8020.

Interventions/Control_2

After performing oral care, apply tap water.

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

45 years-old <=

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

1. Patients in the ICU who are intubated due to cerebrovascular disease, cardiovascular disease, or severe infection.
2. Patients aged 45 years or older
3. Patients for whom consent has been obtained from the patient, their family, or a surrogate decision-maker after receiving a thorough explanation and demonstrating a full understanding of the study (since the patient is intubated and consent cannot be obtained prior to intubation).

Key exclusion criteria

1. Patients with conditions other than the target disease.
2. Patients with edentulism.
3. Patients who do not consent to participate in the study.
4. Any other patients deemed unsuitable for the study by the principal investigator or other study personnel.

Target sample size

20


Research contact person

Name of lead principal investigator

1st name Tomofumi
Middle name
Last name Naruse

Organization

Hiroshima Prefectural Hospital

Division name

Dentistry and Oral Surgery

Zip code

734-8530

Address

5-54 Ujina-Kanda 1-chome, Minami Ward, Hiroshima City

TEL

0822541818

Email

natsuaya1023@gmail.com


Public contact

Name of contact person

1st name Tomofumi
Middle name
Last name Naruse

Organization

Hiroshima Prefectural Hospital

Division name

Dentistry and Oral Surgery

Zip code

734-8530

Address

5-54 Ujina-Kanda 1-chome, Minami Ward, Hiroshima City

TEL

0822541818

Homepage URL


Email

natsuaya1023@gmail.com


Sponsor or person

Institute

others

Institute

Department

Personal name



Funding Source

Organization

others

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

Hiroshima prefectural hospital

Address

5-54 Ujina-Kanda 1-chome, Minami Ward, Hiroshima City

Tel

0822541818

Email

natsuaya1023@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

2026 Year 04 Month 09 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

2026 Year 03 Month 31 Day

Date of IRB

2026 Year 03 Month 09 Day

Anticipated trial start date

2026 Year 04 Month 01 Day

Last follow-up date

2026 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

2026 Year 04 Month 09 Day

Last modified on

2026 Year 04 Month 09 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000070036