UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000004161
Receipt number R000004996
Scientific Title A randomized, double blind, comparative study of vitamin D3 versus placebo in school children with asthma to prevent asthma attack
Date of disclosure of the study information 2010/10/01
Last modified on 2016/03/05 12:21:47

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Basic information

Public title

A randomized, double blind, comparative study of vitamin D3 versus placebo in school children with asthma to prevent asthma attack

Acronym

ATP XIII

Scientific Title

A randomized, double blind, comparative study of vitamin D3 versus placebo in school children with asthma to prevent asthma attack

Scientific Title:Acronym

ATP XIII

Region

Japan


Condition

Condition

asthma

Classification by specialty

Pediatrics

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

We will determine if vitamin D3 peroral administration of 800IU/day for two months can prevent asthma attack in children (6 – 15 years old) for the next 4 months (total 6 months observation), by conducting a double blind randomized controlled clinical trial.

Basic objectives2

Safety,Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

frequencies and severity of asthma attack diagnosed by collaborating doctors

Key secondary outcomes

Improvement of IgE RIST, RAST, SCORAD,
changes of ACT score
reduce of drug usage


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

Treatment

Type of intervention

Food

Interventions/Control_1

vitamin D3 supplement

Interventions/Control_2

placebo

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

6 years-old <

Age-upper limit

15 years-old >=

Gender

Male and Female

Key inclusion criteria

1. Age 2 &#8211; 5 years old children who have been diagnosed as asthma by collaborating doctors.

2. Obtained informed consent

Key exclusion criteria

1. Not using vitamin D supplement or active vitamin D

2. Past history

incubation and respiratory treatment
admission due to RS virus infection
urinary stone

3. Chronic disease including fracture
mental retardation
swallowing disturbance

4. other difficulties judged by the charged doctor

Target sample size

400


Research contact person

Name of lead principal investigator

1st name
Middle name
Last name Mitsuyoshi Urashima

Organization

Jikei University School of Medicine

Division name

Molecular Epidemiology

Zip code


Address

3-25-8 Nishi-shimbashi, Minato-ku, Tokyo

TEL

03-3433-1111

Email



Public contact

Name of contact person

1st name
Middle name
Last name Mitsuyoshi Urashima

Organization

Jikei University School of Medicine

Division name

Molecular Epidemiology

Zip code


Address

3-25-8 Nishi-shimbashi, Minato-ku, Tokyo

TEL

03-3433-1111

Homepage URL


Email



Sponsor or person

Institute

Jikei University School of Medicine

Institute

Department

Personal name



Funding Source

Organization

Jikei University School of Medicine

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


Address


Tel


Email



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

2010 Year 10 Month 01 Day


Related information

URL releasing protocol


Publication of results

Published


Result

URL related to results and publications

http://www.ncbi.nlm.nih.gov/pubmed/26841365

Number of participants that the trial has enrolled


Results

BACKGROUND:

In our prior randomized trial on preventing influenza, asthma attacks as a secondary outcome occurred less often in the vitamin D group than the placebo group. We aimed to clarify whether low-dose, short-term vitamin D supplementation, in addition to standard treatments, improves control of childhood asthma.

METHODS:

We conducted a randomized, double-blind, placebo-controlled trial comparing vitamin D3 supplements (800 IU/day) with placebo for 2 months in schoolchildren with asthma. The primary outcomes were frequency and severity of asthma judging from changes of asthma control levels defined by the Global Initiative for Asthma (GINA) by collaborating doctors at 2 and 6 months.

RESULTS:

Japanese schoolchildren with asthma (n=89) were randomly assigned to receive vitamin D (n=54) or placebo (n=35). At 2 months, GINA asthma control was significantly more improved in the vitamin D group compared with the placebo group (P=0.015). Childhood asthma control test (CACT) scores, a secondary outcome, were also significantly (P=0.004) improved in the vitamin D group compared with the placebo group at 2 months, and differences remained significant (P=0.012) at 6 months. The proportion of patients with a peak expiratory flow rate <80% predicted was significantly less in the vitamin D group (8/54: 15%) than the placebo group (12/35: 34%) at 6 months (P=0.032).

CONCLUSIONS:

Low-dose, short-term vitamin D supplementation in addition to standard treatment may improve levels of asthma control in schoolchildren. This article is protected by copyright. All rights reserved.

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

Main results already published

Date of protocol fixation

2010 Year 06 Month 19 Day

Date of IRB


Anticipated trial start date

2010 Year 10 Month 01 Day

Last follow-up date

2013 Year 10 Month 04 Day

Date of closure to data entry

2014 Year 03 Month 20 Day

Date trial data considered complete

2014 Year 07 Month 04 Day

Date analysis concluded

2014 Year 07 Month 11 Day


Other

Other related information



Management information

Registered date

2010 Year 09 Month 05 Day

Last modified on

2016 Year 03 Month 05 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000004996


Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
Registered date File name