UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000054284
Receipt number R000061995
Scientific Title Association between delivery type and Kawasaki disease onset
Date of disclosure of the study information 2024/04/30
Last modified on 2024/04/30 03:34:32

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Basic information

Public title

Association between delivery type and Kawasaki disease onset

Acronym

Association between delivery type and Kawasaki disease onset

Scientific Title

Association between delivery type and Kawasaki disease onset

Scientific Title:Acronym

Association between delivery type and Kawasaki disease onset

Region

Japan


Condition

Condition

Kawasaki disease

Classification by specialty

Pediatrics Child

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

Kawasaki disease (KD) is an acute systemic vasculitis that primarily affects children in developed countries and often leads to acquired heart disease. KD onset has been suggested to be associated with infections and various environmental factors. However, research on whether the delivery type plays a role in KD development is limited. This study investigated whether cesarean section (CS) or vaginal delivery (VD) is associated with KD onset using a large administrative claims database in Japan.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Patients with KD were identified from the source population. Subsequently, in every case, we randomly selected controls with no KD history based on a risk-set sampling technique. Each patient was matched to four controls of the same sex, age, and registration time in the database. We subsequently examined the association between the delivery type and KD onset using multivariate conditional logistic regression analysis.We defined the primary outcome as KD, based on specific criteria.

Key secondary outcomes



Base

Study type

Observational


Study design

Basic design


Randomization


Randomization unit


Blinding


Control


Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms


Purpose of intervention


Type of intervention


Interventions/Control_1


Interventions/Control_2


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


Not applicable

Age-upper limit

7 years-old >

Gender

Male and Female

Key inclusion criteria

Information on the children delivered via CS or VD and their mothers was collected from all periods in the database. CS was performed using a procedure detected using Japanese medical procedure codes.Herein, the primary outcome was defined as KD occurrence based on specific criteria. Specifically, we included patients diagnosed with KD (ICD-10 code M303) who had received intravenous immunoglobulin treatment.

Key exclusion criteria

Cases labeled as suspected were excluded, whereas those with atypical KD were included. Considering the importance of an accurate diagnosis in this study, we excluded patients more than 6 years of age because this is not the typical age of KD onset, and distinguishing KD from other diseases in this age group is challenging.

Target sample size

70000


Research contact person

Name of lead principal investigator

1st name Takanori
Middle name
Last name Suzuki

Organization

Fujita Health universty

Division name

Pediatrics

Zip code

4701192

Address

1 98 Dengakugakubo kutsukake Toyoake Aichi

TEL

09025786815

Email

takanori-s@axel.ocn.ne.jp


Public contact

Name of contact person

1st name Takanori
Middle name
Last name Suzuki

Organization

Fujita health university

Division name

Pediatrics

Zip code

470

Address

1-98 Dengakugakubo kutsukake Toyoake Aichi

TEL

09025786815

Homepage URL


Email

takanori-s@axel.ocn.ne.jp


Sponsor or person

Institute

Chiba Cancer Center Research Institute

Institute

Department

Personal name



Funding Source

Organization

Chiba Cancer Center Research Institute

Organization

Division

Category of Funding Organization

Self funding

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Chiba Cancer Center Research Institute

Address

666-2 Nitona-cho, Chuo-ku, Chiba 260-8717, Japan

Tel

043-264-5431

Email

nmichihata@chiba-cc.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

2024 Year 04 Month 30 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

326867

Results

Of the 326,867 deliveries, 67,098 were identified as CS. The proportions of CS, maternal age, Charlson Comorbidity Index, presence of siblings, and low birth weight infants were significantly different between the cases and controls. In the multivariate analysis, KD onset was associated with CS, the presence of siblings , and lower birth weight.

Results date posted

2024 Year 04 Month 30 Day

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

No longer recruiting

Date of protocol fixation

2005 Year 01 Month 01 Day

Date of IRB

2023 Year 04 Month 01 Day

Anticipated trial start date

2005 Year 01 Month 01 Day

Last follow-up date

2024 Year 04 Month 01 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

The risk of developing KD may be influenced by the delivery type (CS or VD), low birth weight, and the presence of siblings.


Management information

Registered date

2024 Year 04 Month 30 Day

Last modified on

2024 Year 04 Month 30 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000061995