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Trial registered on ANZCTR
Registration number
ACTRN12609000060246
Ethics application status
Approved
Date submitted
26/11/2008
Date registered
23/01/2009
Date last updated
23/01/2009
Type of registration
Prospectively registered
Titles & IDs
Public title
Two new tests, Multiple Breath Washout Technique and Acoustic Severe Asthma Monitor, to measure lung function (breathing) in young children
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Scientific title
Assessment of Lung Function Using the Multiple Breath Washout Technique and Acoustic Severe Asthma Monitor in Pre-School Children with a History of Wheezing
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Universal Trial Number (UTN)
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Trial acronym
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Wheeze
4027
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Condition category
Condition code
Respiratory
4229
4229
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0
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Asthma
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Intervention/exposure
Study type
Observational
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Patient registry
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Target follow-up duration
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Target follow-up type
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Description of intervention(s) / exposure
There are two new tests that can be used to measure lung function in young children. These are called the multiple breath washout (MBW) and Acoustic Severe Asthma Monitor (ASAM). The MBW equipment is registered in Australia for use in children from birth. This system uses a multiple-breath washin/washout technique using sulphur-hexafluoride (SF6) as a tracer gas and a commercially available, TGA approved, ultrasonic flowmeter which indirectly measures inert tracer gas concentrations by continuous mainstream recording of the molar mass of the gas.
The ASAM is a new breathing test and is not yet registered in Australia so its use is experimental. The ASAM is a combination of two technologies; incorporating both passive and active methods for continuous monitoring of the asthmatic patient. The passive technology employs the detection of wheezes and coughing in the patient. The active technology, which injects sound into the upper airways, monitors the degree of occlusion of intrapulmonary airways that occurs during asthma attacks.
All participants undergo both tests in one session, with devices assigned in random order. Particpants will not have follow up as part of the study but will follow usual care. 50 children who wheeze and 50 children who don’t wheeze and have no other breathing problems shall be recruited and closeout shall occur within a year of commencement
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Intervention code [1]
3928
0
Diagnosis / Prognosis
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Comparator / control treatment
There are two new tests used to measure lung function in young children, the multiple breath washout (MBW) and Acoustic Severe Asthma Monitor (ASAM). The MBW equipment is registered in Australia for use and therefore most represents the control test in this study. All children within the study receive standard care and will have both tests in random order.
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Control group
Active
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Outcomes
Primary outcome [1]
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To determine the feasibility of MBW for the detection of lung function abnormalities and reversibility to bronchodilators in preschool children with a history of wheeze.
To determine the feasibility of ASAM for the detection of reversibility to bronchodilators in preschool children with a history of wheeze. Comparisson of results of both test shall be cross examined and directly compared
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Assessment method [1]
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Timepoint [1]
5120
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Data analysis will be competed off site post test administration, conclusions are expected at the completion of the study
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Secondary outcome [1]
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The long term aim of this study is to develop techniques which provide objective markers of lung function and bronchodilator responsiveness in preschool children with wheezing with the two types of medical equipment tests and the direct comparison of results.
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Assessment method [1]
8622
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Timepoint [1]
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At completion of the last test administered to participants
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Eligibility
Key inclusion criteria
child is between 3 and 6 years of age and has been referred to the hospital because of wheeze
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Minimum age
3
Years
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Maximum age
6
Years
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Sex
Both males and females
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Can healthy volunteers participate?
Yes
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Key exclusion criteria
has another respiratory problem such as cystic fibrosis
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Study design
Purpose
Screening
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Duration
Cross-sectional
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Selection
Defined population
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Timing
Prospective
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Statistical methods / analysis
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Recruitment
Recruitment status
Recruiting
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Date of first participant enrolment
Anticipated
27/01/2009
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Actual
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Date of last participant enrolment
Anticipated
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Actual
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Date of last data collection
Anticipated
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Actual
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Sample size
Target
100
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Accrual to date
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Final
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Recruitment in Australia
Recruitment state(s)
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Funding & Sponsors
Funding source category [1]
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Commercial sector/Industry
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Name [1]
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PulmoSonix Pty Ltd
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Address [1]
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336A GlenHuntly Rd
Elsternwick VIC 3185
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Country [1]
4208
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Australia
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Primary sponsor type
Charities/Societies/Foundations
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Name
Murdoch Children Research Institute
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Address
C/- The Royal Childrens Hosptial, Melbourne
Flemington Road, Parkville
Victoria, 3052
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Country
Australia
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Secondary sponsor category [1]
3780
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Commercial sector/Industry
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Name [1]
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PulmoSonix Pty Ltd
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Address [1]
3780
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336A GlenHuntly Rd
Elsternwick VIC 3185
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Country [1]
3780
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Australia
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Ethics approval
Ethics application status
Approved
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Ethics committee name [1]
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Royal Children's Hospital, Melbourne Human Research Ethics Committee
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Ethics committee address [1]
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Royal Children's Hospital Melbourne Flemington Road Parkville VIC 3052
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Ethics committee country [1]
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Australia
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Date submitted for ethics approval [1]
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Approval date [1]
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12/11/2008
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Ethics approval number [1]
6261
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28027A
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Summary
Brief summary
Recent advances in diagnostic technologies and subsequent physiological research has lead to a number of techniques being widely available for use in the pre-school age group and resulted in the transition of these techniques into clinical practice. The use of these newer respiratory function techniques to assess airway function in pre-school children with recurrent wheeze may have major implications for our understanding of the pathophysiology of asthma.
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Trial website
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Trial related presentations / publications
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Public notes
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Contacts
Principal investigator
Name
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Address
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Country
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Phone
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Fax
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Email
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Contact person for public queries
Name
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Dr. Jo Harrison
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Address
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Royal Children’s Hospital Melbourne
Flemington Road
Parkville VIC 3052
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Country
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Australia
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Phone
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+61 3 93455818
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Fax
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Email
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[email protected]
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Contact person for scientific queries
Name
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Dr. Jo Harrison
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Address
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Royal Children’s Hospital Melbourne
Flemington Road
Parkville VIC 3052
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Country
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Australia
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Phone
3250
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+61 3 93455818
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Fax
3250
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Email
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[email protected]
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No information has been provided regarding IPD availability
What supporting documents are/will be available?
No Supporting Document Provided
Results publications and other study-related documents
Documents added manually
No documents have been uploaded by study researchers.
Documents added automatically
No additional documents have been identified.
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