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Trial registered on ANZCTR
Registration number
ACTRN12611000056998
Ethics application status
Approved
Date submitted
4/01/2011
Date registered
17/01/2011
Date last updated
17/01/2011
Type of registration
Retrospectively registered
Titles & IDs
Public title
Positional therapy for obstructive sleep apnea: an objective measurement of efficacy and patients’ usage at home.
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Scientific title
Positional therapy for obstructive sleep apnea: an objective measurement of efficacy and patients’ usage at home.
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Secondary ID [1]
253345
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NA
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Universal Trial Number (UTN)
NA
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Trial acronym
NA
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Positional sleep apnea. i.e. sleep apnea occuring mainly in supine position
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Condition category
Condition code
Respiratory
259021
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0
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Sleep apnoea
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Patients with positional sleep apnea are equipped with the positional device preventing sleep in supine position. Patients are instructed to use the device every night during a 3 months period. An actigraphic device, (movement sensor recorder system, Actiwatch, CamNtech Ltd, Cambridge, UK), is inserted inside the positional device in order to assess compliance; i.e., detect when patients used it.
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Intervention code [1]
257792
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Treatment: Devices
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Comparator / control treatment
The device tested is bought from "Amrein Orthpedie, Lausanne Switzerland". No control group for ethical reasons.
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Control group
Uncontrolled
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Outcomes
Primary outcome [1]
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Number of nights (during the 3 months observation period) and the number of hours per night the device is used (according to the movement sensor inserted inside the positional device)
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Assessment method [1]
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Timepoint [1]
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3 months
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Secondary outcome [1]
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Efficacy of the device as measured by apnea hypopnea index (number of apnea + hypopnea per hour of sleep) at the end of the 3 months follow-up
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Assessment method [1]
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Timepoint [1]
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3 months
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Eligibility
Key inclusion criteria
Positional sleep apnoea
Intolerance to other treatments such as CPAP or mandibular advancement device
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Minimum age
18
Years
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Maximum age
100
Years
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Sex
Both males and females
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Can healthy volunteers participate?
No
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Key exclusion criteria
Intolerance to the positional device during the test night
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Study design
Purpose of the study
Treatment
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Allocation to intervention
Non-randomised trial
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Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Patients diagnosed with mild to severe positional OSA (defined as a > 50% reduction in AHI and an AHI <10/h during sleep in non-supine posture) during a home diagnostic night study (baseline, night 1) are identified in our sleep centre population
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
NA
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Masking / blinding
Open (masking not used)
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Who is / are masked / blinded?
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Intervention assignment
Single group
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Other design features
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Phase
Not Applicable
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Type of endpoint/s
Efficacy
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Statistical methods / analysis
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Recruitment
Recruitment status
Completed
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Date of first participant enrolment
Anticipated
15/07/2009
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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
12
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Accrual to date
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Final
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Recruitment outside Australia
Country [1]
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Switzerland
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State/province [1]
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NA
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Funding & Sponsors
Funding source category [1]
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University
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Name [1]
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Lausanne University
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Address [1]
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Faculte de biologie et medecine
Rue du Bugnon
1011 Lausanne
Switzerland
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Country [1]
258262
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Switzerland
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Primary sponsor type
University
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Name
Lausanne University
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Address
Faculte de biologie et medecine
Rue du Bugnon
1011 Lausanne
Switzerland
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Country
Switzerland
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Secondary sponsor category [1]
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None
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Name [1]
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Address [1]
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Country [1]
257430
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Ethics approval
Ethics application status
Approved
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Ethics committee name [1]
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lausanne University ethics committee
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Ethics committee address [1]
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Faculte de biologie et medecine
Rue du Bugnon
1011 Lausanne
Switzerland
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Ethics committee country [1]
260239
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Switzerland
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Date submitted for ethics approval [1]
260239
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28/05/2009
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Approval date [1]
260239
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01/07/2009
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Ethics approval number [1]
260239
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NA
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Summary
Brief summary
Positional therapy that prevents patients from sleeping supine has been used for many years to manage positional obstructive sleep apnea (OSA). However, the actual usage and long term efficacy of this therapy have never been objectively assessed.The aims of this study are to: 1) measure objective nightly usage of this positional device at home and, 2) assess its efficacy after 3 months of treatment at home.
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Trial website
N.A.
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Trial related presentations / publications
N.A.
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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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Raphael Heinzer MD, MPH
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Address
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Center for Investigation and Research in Sleep (CIRS)
Lausanne University Hospital (CHUV)
BH 06-204
1011 Lausanne
Switzerland
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Country
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Switzerland
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Phone
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+41 21 314 67 54
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Fax
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+41 21 314 67 52
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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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Raphael Heinzer MD, MPH
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Address
6225
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Center for Investigation and Research in Sleep (CIRS)
Lausanne University Hospital (CHUV)
BH 06-204
1011 Lausanne
Switzerland
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Country
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Switzerland
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Phone
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+41 21 314 67 54
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Fax
6225
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+41 21 314 67 52
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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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