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Trial registered on ANZCTR
Registration number
ACTRN12610000596000
Ethics application status
Not yet submitted
Date submitted
22/07/2010
Date registered
23/07/2010
Date last updated
23/07/2010
Type of registration
Prospectively registered
Titles & IDs
Public title
Sleep Disturbances in Moderate to Severe Chronic Obstructive Pulmonary Disease
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Scientific title
Looking at sleep disturbances in moderate to severe Chronic Obstructive Pulmonary Disease (COPD) patients by performing a polysomnogram
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Secondary ID [1]
252266
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Nil
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Universal Trial Number (UTN)
U1111-1116-1706
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Trial acronym
Sleep in COPD
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Chronic Obstructive Pulmonary Disease (COPD)
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Sleep disturbances
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Condition category
Condition code
Respiratory
257955
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0
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Chronic obstructive pulmonary disease
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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
Polysomnogram to observe the sleep architecture of COPD patients. Duration of observation is overnight (6pm on the first day to 7am the next morning)
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Intervention code [1]
256853
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Not applicable
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Comparator / control treatment
N/A
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Control group
Uncontrolled
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Outcomes
Primary outcome [1]
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Quantification of the extent of COPD in the patient through spirometry measurements.
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Assessment method [1]
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Timepoint [1]
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Assessed continuously for 15-30min.
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Primary outcome [2]
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Description of the sleep architecture of COPD patients. Assessed by a polysomnogram and Osler test.
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Assessment method [2]
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Timepoint [2]
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Assessed continuously for approximately 13 hours.
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Primary outcome [3]
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Patient's perceived sleepiness and quality of life. Assessed by questionnaires on the patient's perceived sleepiness and quality of life. Questionnaires used: Chronic Respiratory Disease Questionnaire (CRDQ), Pittsburgh Sleep Quality Index (PSQI), Epworth Sleepiness Scale (ESS), Modified Medical Research Council Dyspnoea Scale (MMRC), Nottingham Health Profile (NHP), Short Form-36 Medical Outcomes Survey (SF36) and Profile of Mood States.
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Assessment method [3]
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Timepoint [3]
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Assessed for about 1 hour.
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Secondary outcome [1]
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Nil
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Assessment method [1]
264952
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Timepoint [1]
264952
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Nil
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Eligibility
Key inclusion criteria
Previous diagnosis of COPD
Forced expiratory volume in 1 second (FEV1)/Forced vital capacity(FVC) below lower limit of normal range
Forced expiratory volume in 1 second(FEV1) less than 70% mean predicted value
Body Mass Index less than or equal to 33
10 pack year history of smoking
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Minimum age
40
Years
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Maximum age
85
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
Change in COPD medication within past 30 days
Previously diagnosed or treated sleep disordered breathing
Significant neurological, psychological or psychiatric co-morbidities
Unable to refrain from caffeine from 4pm on night of sleep study
Unable to refrain from cigarettes during overnight stay (6pm to 7am the following day)
Unable to refrain from alcohol from 12pm on day of sleep study
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Study design
Purpose
Natural history
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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
Not yet recruiting
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Date of first participant enrolment
Anticipated
13/08/2010
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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
30
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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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University
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Name [1]
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University of Melbourne
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Address [1]
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University of Melbourne, VIC 3010
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Country [1]
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Australia
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Primary sponsor type
University
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Name
University of Melbourne
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Address
University of Melbourne, VIC 3010
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Country
Australia
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Secondary sponsor category [1]
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Hospital
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Name [1]
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Institute for Breathing and Sleep, Austin Health
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Address [1]
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PO Box 5555, Studley Rd, Heidelberg, VIC 3084
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Country [1]
256557
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Australia
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Ethics approval
Ethics application status
Not yet submitted
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Ethics committee name [1]
259339
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Austin Health Ethics Commitee
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Ethics committee address [1]
259339
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Studley Rd, Heidelberg. VIC 3084
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Ethics committee country [1]
259339
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Australia
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Date submitted for ethics approval [1]
259339
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31/05/2010
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Approval date [1]
259339
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Ethics approval number [1]
259339
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Summary
Brief summary
Patients with chronic obstructive pulmonary disease (COPD) have previously been shown to complain of poor sleep, daytime fatigue and sleepiness. This has been seen in large studies based on questionnaires, however a US study of over 2,000 participants with mild COPD found little sleep disturbance. This study will measure sleep quality and symptoms of sleep disturbance in a group of participants with moderate to severe COPD and correlate perceived with actual sleep disturbance. Thirty participants with moderate to severe COPD (defined as at least 1 standard deviation below the lower limit of their predicted function) will complete questionnaires measuring quality of life, symptoms of respiratory and sleep disturbance and daytime sleepiness. They will be required to have a stable regimen of treatment for their lung disease and no significant medical or psychological conditions which could prevent them completing the study. Standard clinical spirometry will be performed and an in-laboratory sleep study carried out. This sleep study will monitor sleep, airflow, oxygen and carbon dioxide (CO2) levels during the night, as accumulation of CO2 during the night in these patients may contribute to sleep disruption and fragmentation. Participants will be asked to describe the quality of their sleep and this will be compared to the measured sleep, as sleep perception is thought to be poor in these patients. The outcomes of the study will be a description of sleep architecture, including the number of changes in sleep stage. It is thought that sleep stage transitions are important for daytime sleepiness. The degree of sleep fragmentation will be correlated with the sleep questionnaire outcomes and also with the severity and other measures of the respiratory function.
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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
31417
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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 Maree Barnes
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Address
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Austin Health 145 Studley Rd PO Box 5555 Heidelberg VIC 3084
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Country
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Australia
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Phone
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+613 9496 3688
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Fax
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Email
14664
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[email protected]
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Contact person for scientific queries
Name
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Mr Danny Brazzale
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Address
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Austin Health 145 Studley Rd PO Box 5555 Heidelberg VIC 3084
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Country
5592
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Australia
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Phone
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+613 9496 5786
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Fax
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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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