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Trial details imported from ClinicalTrials.gov

For full trial details, please see the original record at https://clinicaltrials.gov/study/NCT00489762




Registration number
NCT00489762
Ethics application status
Date submitted
19/06/2007
Date registered
21/06/2007
Date last updated
21/06/2007

Titles & IDs
Public title
Does Improving Insulation and Heating Improve Health?
Scientific title
Housing, Heating and Health Study:a Randomised Community Trial
Secondary ID [1] 0 0
Heating Study
Universal Trial Number (UTN)
Trial acronym
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Asthma 0 0
Condition category
Condition code
Respiratory 0 0 0 0
Asthma

Intervention/exposure
Study type
Interventional
Description of intervention(s) / exposure
Comparator / control treatment
Control group

Outcomes
Primary outcome [1] 0 0
Asthma Symptoms
Timepoint [1] 0 0
One year
Primary outcome [2] 0 0
FEV1
Timepoint [2] 0 0
One year
Primary outcome [3] 0 0
Children's days off school and general practitioner visits
Timepoint [3] 0 0
One year
Secondary outcome [1] 0 0
Energy usage
Timepoint [1] 0 0
One year
Secondary outcome [2] 0 0
Hospitalisation
Timepoint [2] 0 0
One year
Secondary outcome [3] 0 0
Temperature in the Home
Timepoint [3] 0 0
Four months

Eligibility
Key inclusion criteria
* Household has asthmatic child between 6 and 12, is living in study area, and will not be moving in the two years after applying to join the study.
Minimum age
6 Years
Maximum age
12 Years
Sex
Both males and females
Can healthy volunteers participate?
No
Key exclusion criteria
* Heating of good quality and comparable to heater that will be installed by the study

Study design
Purpose of the study
Prevention
Allocation to intervention
Randomised controlled trial
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Masking / blinding
Blinded (masking used)
Who is / are masked / blinded?



Intervention assignment
Parallel
Other design features
Phase
Not applicable
Type of endpoint/s
Statistical methods / analysis

Recruitment
Recruitment status
Completed
Data analysis
Reason for early stopping/withdrawal
Other reasons
Date of first participant enrolment
Anticipated
Actual
1/06/2005
Date of last participant enrolment
Anticipated
Actual
Date of last data collection
Anticipated
Actual
1/10/2006
Sample size
Target
Accrual to date
Final
409
Recruitment in Australia
Recruitment state(s)
Recruitment outside Australia
Country [1] 0 0
New Zealand
State/province [1] 0 0
Wellington

Funding & Sponsors
Primary sponsor type
Other
Name
University of Otago
Address
Country

Ethics approval
Ethics application status

Summary
Brief summary
The Housing, Heating and Health Study has enrolled 409 households with ineffective heaters, who have a child with asthma between 6 and 12 years.

In the winter of 2005, houses were insulated and baseline measures taken of indoor temperatures, nitrogen dioxide, with more intensive indoor air quality monitoring in a sub-sample of 33 homes.

Objective data are being collected on the household's health and energy usage. The households randomly assigned to the intervention group will have new heaters installed over the summer.

Results will be available after the follow-up data collection in 2006.
Trial website
https://clinicaltrials.gov/study/NCT00489762
Trial related presentations / publications
Gillespie-Bennett J, Pierse N, Wickens K, Crane J, Howden-Chapman P; Housing Heating and Health Study Research Team. The respiratory health effects of nitrogen dioxide in children with asthma. Eur Respir J. 2011 Aug;38(2):303-9. doi: 10.1183/09031936.00115409. Epub 2010 Dec 22.
Howden-Chapman P, Pierse N, Nicholls S, Gillespie-Bennett J, Viggers H, Cunningham M, Phipps R, Boulic M, Fjallstrom P, Free S, Chapman R, Lloyd B, Wickens K, Shields D, Baker M, Cunningham C, Woodward A, Bullen C, Crane J. Effects of improved home heating on asthma in community dwelling children: randomised controlled trial. BMJ. 2008 Sep 23;337:a1411. doi: 10.1136/bmj.a1411.
Public notes

Contacts
Principal investigator
Name 0 0
Philippa Howden-Chapman, PhD
Address 0 0
Housing and Health Research Programme
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for public queries
Name 0 0
Address 0 0
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for scientific queries



Summary Results

For IPD and results data, please see https://clinicaltrials.gov/study/NCT00489762