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Trial registered on ANZCTR
Registration number
ACTRN12612000113853
Ethics application status
Approved
Date submitted
18/01/2012
Date registered
24/01/2012
Date last updated
24/01/2012
Type of registration
Retrospectively registered
Titles & IDs
Public title
Surfactant for Obstructive Sleep Apnea in Patients with Primary Sjogren’s Syndrome: A randomised, placebo controlled study.
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Scientific title
Surfactant for OSA in Patients with Primary Sjogren’s Syndrome for improvement of AHI and Sicca Symptoms: A randomised, placebo controlled study.
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Secondary ID [1]
279755
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Nil
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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:
obstructive sleep apnea in patients with primary sjogren's syndrome.
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Condition category
Condition code
Respiratory
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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
Surfactant (abbott's Survanta) 4.0mls topically into upper airways(half the dose via oropharynx and half via nasopharynx). The dose was given at baseline prior to sleep onset and repeated 3.5 hours after sleep onset.
On the consecutive night surfactant will be crossed over by 4.0 mls of 0.9 % normal saline via same route and with same frequency.
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Intervention code [1]
284075
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Treatment: Drugs
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Comparator / control treatment
Normal saline 4.o mls which will be crossed over to surfactant 4.0mls on the consecutive night.
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Control group
Placebo
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Outcomes
Primary outcome [1]
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Apnea Hypopnea Index (AHI) as measured by overnight sleep study. AHI is computed by dividing the total number of hypopneas (events of reduced flow of braeth) and Apneas (No flow of breath) by the total time asleep in hour.
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Assessment method [1]
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Timepoint [1]
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Overnight only- two consecutive nights of cross over-intervention vs placebo
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Secondary outcome [1]
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Sicca Score.
Quality of Sleep
Morning Alertness
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Assessment method [1]
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Timepoint [1]
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Overnight only- two consecutive nights of cross over-intervention vs placebo
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Eligibility
Key inclusion criteria
Obstructive Sleep Apnea
Primary Sjogren's Syndrome
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Minimum age
18
Years
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Maximum age
No limit
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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
Severe gag reflex
Severe cognitive impairment
Not willing to participate
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Study design
Purpose of the study
Treatment
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Allocation to intervention
Randomised controlled trial
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Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
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Masking / blinding
Blinded (masking used)
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Who is / are masked / blinded?
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Intervention assignment
Crossover
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Other design features
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Phase
Phase 2
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Type of endpoint/s
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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
18/04/2011
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Actual
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Date of last participant enrolment
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Actual
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Date of last data collection
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Actual
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Sample size
Target
14
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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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Charities/Societies/Foundations
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Name [1]
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Foundation Daw Park
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Address [1]
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Repatriation General Hospital,daws Road, Daw park, Sa 5041
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Country [1]
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Australia
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Primary sponsor type
Hospital
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Name
Adelaide Institute for Sleep Health
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Address
Repatriation General Hospital,
Daws Road, Daw Park, SA 5041
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Country
Australia
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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]
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Ethics approval
Ethics application status
Approved
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Ethics committee name [1]
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Southern Adelaide Clinical Human Research Ethics Committee
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Ethics committee address [1]
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Southern Adelaide Clinical Human Research Ethics Committee SA Health Room 2A221 - Inside Human Resources Flinders Medical Centre, Bedford Park SA 5042
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Ethics committee country [1]
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Date submitted for ethics approval [1]
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Approval date [1]
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17/03/2011
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Ethics approval number [1]
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1/10/0455
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Summary
Brief summary
Our group has recently found that women with primary Sjogren’s syndrome (an autoimmune disease causing dry eyes and mouth) are considerably more likely to suffer obstructive sleep apnoea (OSA) compared to women without Sjogren’s syndrome. OSA is a common condition in which the upper airway repeatedly closes during sleep and can lead to severe daytime sleepiness, one of the common problems reported by Sjogren’s sufferers. A likely key cause of OSA in Sjogren’s syndrome is reduced and stickier airway secretions that may predispose to airway obstruction and disturbed sleep at night. Recent research in OSA patients without Sjogren’s syndrome has shown that lubricating the upper airway with a substance called surfactant improves OSA. Surfactants are naturally produced in the lung and work by decreasing the “stickiness” (surface tension) of fluids. Therefore, at least in OSA patients without Sjogren’s syndrome, surfactants applied to the upper airway appear to help the airway to stay open and reopen more easily if it becomes closed. Women with Sjogren’s syndrome are likely to similarly benefit from this form of treatment. The aim of this study is to determine whether the topical application of surfactant in women with primary Sjogren’s Syndrome who have obstructive sleep apnoea as well, will reduce the severity of their OSA and salivary stickiness and will improve their symptoms of overnight dryness and general morning well-being or not.
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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 Zafar A Usmani
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Address
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Adelaide Institute for Sleep Health, Repatriation General Hospital, Daws Road, Daw park, SA 5020, Australia.
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Country
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Australia
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Phone
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61882751311
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Fax
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61882751311
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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 Zafar A Usmani
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Address
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Adelaide Institute for Sleep Health,
Repatriation General hospital,
Daws Road, Daw Park,
SA 5041,
Australia
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Country
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Australia
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Phone
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61882751311
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Fax
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61882751311
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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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