UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000060777
Receipt number R000068873
Scientific Title A Randomized, Double-Blind, Placebo-Controlled, Parallel-Group Study to Evaluate the Effect of Cranberry Extract on the Urinary Microbiome in Children with Nocturnal Enuresis
Date of disclosure of the study information 2026/02/27
Last modified on 2026/02/27 17:03:46

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Basic information

Public title

KMU Cranberry On Nocturnal Enuresis for Continence Trial

Acronym

KMU CONNECT

Scientific Title

A Randomized, Double-Blind, Placebo-Controlled, Parallel-Group Study to Evaluate the Effect of Cranberry Extract on the Urinary Microbiome in Children with Nocturnal Enuresis

Scientific Title:Acronym

A Randomized, Double-Blind, Placebo-Controlled, Parallel-Group Study to Evaluate the Effect of Cranberry Extract on the Urinary Microbiome in Children with Nocturnal Enuresis

Region

Japan


Condition

Condition

Nocturnal enuresis

Classification by specialty

Pediatrics Child

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To evaluate the changes in the urinary microbiome following continuous consumption of cranberry extract supplement in children with nocturnal enuresis.

Basic objectives2

Others

Basic objectives -Others

Relative abundance of urinary microbiota

Trial characteristics_1

Confirmatory

Trial characteristics_2


Developmental phase

Not applicable


Assessment

Primary outcomes

Relative abundance of urinary microbiota

Key secondary outcomes

Diversity of urinary microbiota
Urine pH
Hippuric acid concentration in urine
Frequency of nocturnal enuresis
Frequency of daytime urinary incontinence
Maximum voided volume
Fecal organic acid concentration
Gut microbiota diversity and functional prediction

Nocturnal urine volume


Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Double blind -all involved are blinded

Control

Placebo

Stratification

NO

Dynamic allocation

NO

Institution consideration

Institution is not considered as adjustment factor.

Blocking

YES

Concealment

Central registration


Intervention

No. of arms

2

Purpose of intervention

Prevention

Type of intervention

Food

Interventions/Control_1

Participants will receive cranberry extract supplement (5 tablets) once daily for 3 weeks.

Interventions/Control_2

Participants will receive placebo (5 tablets) once daily for 3 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

5 years-old <=

Age-upper limit

15 years-old >=

Gender

Male and Female

Key inclusion criteria

1) Children aged 5 to 15 years at the time of consent.
2) Outpatients.
3) Gender: Both male and female.
4) Diagnosed with nocturnal enuresis.
5) Patients from whom written informed consent has been obtained from the participant or their legal guardian after sufficient explanation and understanding.

Key exclusion criteria

Children who meet any of the following criteria:
1) Use of antibiotics within the last month.
2) Routine consumption of cranberries or cranberry products.
3) Presence of underlying renal or urinary tract diseases.
4) Refusal to participate in this study.
5) Otherwise judged unsuitable for the study by the principal investigator.

Target sample size

50


Research contact person

Name of lead principal investigator

1st name Shohei
Middle name
Last name Akagawa

Organization

Kansai Medical University Hospital

Division name

Department of Pediatrics

Zip code

573-1191

Address

2-3-1 Shinmachi, Hirakata City, Osaka Prefecture, Japan

TEL

072-804-0101

Email

akagawa.sho@kmu.ac.jp


Public contact

Name of contact person

1st name Shohei
Middle name
Last name Akagawa

Organization

Kansai Medical University Hospital

Division name

Department of Pediatrics

Zip code

573-1191

Address

2-3-1 Shinmachi, Hirakata City, Osaka Prefecture, Japan

TEL

072-804-0101

Homepage URL


Email

akagawa.sho@kmu.ac.jp


Sponsor or person

Institute

Kansai Medical University

Institute

Department

Personal name



Funding Source

Organization

KAKENHI, Japan Society for the Promotion of Science

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

Ethics Review Center, Kansai Medical University

Address

Room 701, 7th Floor, 2-5-1 Shinmachi, Hirakata City, Osaka Prefecture, Japan

Tel

072-804-0101

Email

rinriirb@hirakata.kmu.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

2026 Year 02 Month 27 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

Enrolling by invitation

Date of protocol fixation

2026 Year 02 Month 16 Day

Date of IRB

2026 Year 02 Month 16 Day

Anticipated trial start date

2026 Year 02 Month 27 Day

Last follow-up date

2029 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 02 Month 27 Day

Last modified on

2026 Year 02 Month 27 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/icdr_e/ctr_view.cgi?recptno=R000068873