UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000058770
Receipt number R000067196
Scientific Title Examination of the effect of food containing Lactobacillus salivarius WB21 on oral Candida species (Randomized, placebo-controlled, double-blind, parallel-group comparative study)
Date of disclosure of the study information 2025/10/01
Last modified on 2025/08/12 15:22:04

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Basic information

Public title

Examination of the effect of food containing WB21 on oral Candida species (Randomized, placebo-controlled, double-blind, parallel-group comparative study)

Acronym

Effect of WB21-containing tablets on oral Candida (RCT)

Scientific Title

Examination of the effect of food containing Lactobacillus salivarius WB21 on oral Candida species (Randomized, placebo-controlled, double-blind, parallel-group comparative study)

Scientific Title:Acronym

Effect of Lactobacillus salivarius WB21-containing tablets on oral Candida (RCT)

Region

Japan


Condition

Condition

oral candidiasis

Classification by specialty

Dental medicine

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To prevent oral candidiasis, a randomized controlled trial will be conducted to clarify whether the continuous intake of food containing Lactobacillus salivarius WB21 (WB21), a lactic acid bacterium that has been confirmed to inhibit the growth of Candida albicans in in vitro studies, inhibits the growth of Candida in the oral cavity of elderly people who harbor Candida in their mouths, and thus prevents the onset of oral candidiasis.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

the number of Candida species in the mouth

Key secondary outcomes



Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Double blind -all involved are blinded

Control

Placebo

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

2

Purpose of intervention

Prevention

Type of intervention

Food

Interventions/Control_1

Study participants will be asked to take "Avambees Oral Tablets" (Wakamoto Pharmaceutical Co., Ltd.), a food containing Lactobacillus salivarius WB21, three times a day for two weeks.

Interventions/Control_2

Study participants will take placebo tablets (Wakamoto Pharmaceutical Co., Ltd.) containing no Lactobacillus salivarius WB21 three times a day for two weeks.

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

65 years-old <=

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

Residents of a certain nursing home in Fukuoka City who has been found to have Candida in his or her oral cavity

Key exclusion criteria

Those who are already using food containing WB21 / Those taking antibiotics / Those with a history of milk allergy or food allergy to food ingredients / Those who the researcher judges to be inappropriate as study participants

Target sample size

20


Research contact person

Name of lead principal investigator

1st name Nao
Middle name
Last name Taniguchi

Organization

Fukuoka Dental College

Division name

Department of Preventive and Public Health Dentistry

Zip code

8140175

Address

2-15-1 Tamura, Sawara-ku, Fukuoka, Japan

TEL

81-92-801-0616

Email

naojsz@fdcnet.ac.jp


Public contact

Name of contact person

1st name Nao
Middle name
Last name Taniguchi

Organization

Fukuoka Dental College

Division name

Department of Preventive and Public Health Dentistry

Zip code

8140175

Address

2-15-1 Tamura, Sawara-ku, Fukuoka, Japan

TEL

81-92-801-0616

Homepage URL


Email

naojsz@fdcnet.ac.jp


Sponsor or person

Institute

Fukuoka Dental College

Institute

Department

Personal name



Funding Source

Organization

Fukuoka Dental College

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

Fukuoka Gakuen Ethics Committee

Address

2-15-1, Tamura, Sawara-ku, Fukuoka, Japan

Tel

81-92-801-0425

Email

shomu@fdcnet.ac.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

2025 Year 10 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

Preinitiation

Date of protocol fixation

2025 Year 07 Month 15 Day

Date of IRB

2025 Year 08 Month 01 Day

Anticipated trial start date

2025 Year 10 Month 01 Day

Last follow-up date

2026 Year 03 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

2025 Year 08 Month 12 Day

Last modified on

2025 Year 08 Month 12 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000067196