UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000010833
Receipt number R000012686
Scientific Title Intervention for environmental tobacco smoke avoidance in junior high school students and allergic diseases
Date of disclosure of the study information 2013/05/29
Last modified on 2021/01/11 16:19:20

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Basic information

Public title

Intervention for environmental tobacco smoke avoidance in junior high school students and allergic diseases

Acronym

Intervention for environmental tobacco smoke avoidance and allergic diseases

Scientific Title

Intervention for environmental tobacco smoke avoidance in junior high school students and allergic diseases

Scientific Title:Acronym

Intervention for environmental tobacco smoke avoidance and allergic diseases

Region

Japan


Condition

Condition

environmental tobacco exposure
asthma, allergic rhinitis, Japanese cedar pollinosis

Classification by specialty

Pediatrics Child

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To evaluate effectiveness of educational intervention for environmental tobacco smoke exposure in junior high school students in relation to allergic diseases

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1

Confirmatory

Trial characteristics_2

Others

Developmental phase

Not applicable


Assessment

Primary outcomes

Decrease in urinary cotinine levels after educational intervention for environmental tobacco smoke exposure.

Key secondary outcomes

Prevalence and severity of allergic diseases and environmental tobacco exposure
Lung functions and environmental tobacco expusre
Improvemento of attitude toward smoking after educational intervention for environmental tobacco smoke exposure.
Experience of smoking before 20 years of age


Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Cluster

Blinding

Open -no one is blinded

Control

No treatment

Stratification

YES

Dynamic allocation

NO

Institution consideration

Institution is considered as a block.

Blocking

NO

Concealment

No need to know


Intervention

No. of arms

2

Purpose of intervention

Prevention

Type of intervention

Behavior,custom

Interventions/Control_1

The education will be provided in 3 junior high school. The education in classified into 10 different topics, and each topic is taught for 10 minutes. Each topic includes sound- and print-based educational materials.

Interventions/Control_2

No education will be provided in 2 control schools, and educational materials will be provided after re-evaluation of urinary cotinine and questionnaire.

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

12 years-old <=

Age-upper limit

16 years-old >

Gender

Male and Female

Key inclusion criteria

Junior high school students at Yotsukaido municipal schools who agree to participate in the study with a written informed consent.

Key exclusion criteria

Students with severe development disorder or visual and hearing disabilities

Target sample size

500


Research contact person

Name of lead principal investigator

1st name Shuichi
Middle name
Last name Suzuki

Organization

Shimoshizu National Hospital

Division name

Department of Pediatrics

Zip code

284-0003

Address

Yotsukaido

TEL

0434222511

Email

seeyou@msj.biglobe.ne.jp


Public contact

Name of contact person

1st name Shuichi
Middle name
Last name Suzuki

Organization

Shimoshizu National Hospital

Division name

Department of Pediatrics

Zip code

284-0003

Address

Yotsukaido

TEL

0434222511

Homepage URL

https://www.nsh.gr.jp/

Email

seeyou@msj.biglobe.ne.jp


Sponsor or person

Institute

Shimoshizu National Hospital

Institute

Department

Personal name



Funding Source

Organization

Environmental Restoration and Conservation Agency

Organization

Division

Category of Funding Organization

Japanese Governmental office

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Shimoshizu National Hospital

Address

934-5 Shikawatashi Yotsukaido, Chiba

Tel

0434222511

Email

seeyou@msj.biglobe.ne.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

2013 Year 05 Month 29 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

700

Results

After educational intervention, urinary cotinine levels were decreased significantly in both groups. In highly exposed group (>5ng/mg creatinine), the frequency of improvement was higher in intervention group significantly. The intervention was significantly associated with cotinine reduction after adjustment by paternal education. In intervention group, students who completely understood how to avoid environmental tobacco exposure showed higher frequency of reduction of urinary cotinine after intervention.

Results date posted

2021 Year 01 Month 11 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

2013 Year 03 Month 15 Day

Date of IRB

2013 Year 03 Month 15 Day

Anticipated trial start date

2013 Year 04 Month 16 Day

Last follow-up date

2021 Year 03 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

Since analysis of primary outcome has been completed, we will submit for a medical journal by the end of 2018.


Management information

Registered date

2013 Year 05 Month 29 Day

Last modified on

2021 Year 01 Month 11 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000012686


Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
Registered date File name