SNORE (Smartphone Analyses of Nocturnal Obstruction by Respiratory Evaluation) SOUNDS
NCT ID: NCT03288376
Last Updated: 2019-08-07
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
272 participants
OBSERVATIONAL
2015-02-13
2017-01-31
Brief Summary
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Detailed Description
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Part A: Sleep Lab
Consecutive patients referred to a sleep lab for possible OSA will be offered participation. Participants who provide informed consent will fill out a questionnaire and then have PSG, as it would normally be performed. During PSG additional sound recordings will be made in three ways:
1. Microphone placed 50-100 cm (20-40 inches) from the patient's mouth.
2. Android type Smart Phone with a recording application (app). The phone will be placed on a table 50-100 cm (20-40 inches)) from patient's mouth.
3. iPhone type Smart Phone with a recording app. Phone will be placed on a table 50-100 cm (20-40 inches) from patient's mouth.
The sound recordings obtained via the microphone and Smart Phones will be analyzed electronically for OSA by the sponsor's proprietary algorithm. A blinded comparison will be made between the PSG results and SnoreSounds algorithm results.
PSG will be performed and scored in a manner consistent with current (2012) American Academy of Sleep Medicine (AASM) standards. PSGs will be scored twice - with each scoring performed independently. If the Apnea Hypopnea Index (AHI) for each score places the patient in the same OSA severity range \[0-4 normal/minimal OSA, 5-14 mild, 15-30 moderate, \>30 severe\] the average of the two scores will be utilized. If however the scores put the patent in different OSA severity ranges, then the study will be scored by an independent sleep medicine physician-sleep technician team and assigned an AHI.
The results of the SnoreSounds testing will not be known to the sleep lab and the results obtained from Snore Sounds analysis will not be utilized in the clinical management of study participants.
Part B: Comparison of SnoreSounds algorithm to Home Sleep Testing (HST) (currently not enrolling in Part B)
Part C: Comparison of SnoreSounds algorithm to Home Sleep Testing (HST) and to Polysomnography (PSG) (currently not enrolling in Part C)
Conditions
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Study Design
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CASE_ONLY
PROSPECTIVE
Eligibility Criteria
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Inclusion Criteria
Exclusion Criteria
* Prior surgery for snoring or OSA
* Medical contraindication for PSG
* Cognitive impairment that might interfere with obtaining informed consent or completing Clinical Questionnaire
18 Years
ALL
Yes
Sponsors
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Incyphae, Inc.
INDUSTRY
Responsible Party
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Principal Investigators
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Ruchir Sehra, MD
Role: PRINCIPAL_INVESTIGATOR
Incyphae, Inc.
Locations
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Peninsula Sleep Center
Burlingame, California, United States
Northeast Medical Group
New London, Connecticut, United States
Doctors Community Hospital
Lanham, Maryland, United States
Countries
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References
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Pandian TNG, Sehra R, Narayan S. Breath variability increases in the minutes preceding obstructive sleep apneic events. Sleep Breath. 2021 Mar;25(1):271-280. doi: 10.1007/s11325-020-02094-1. Epub 2020 Jun 6.
Narayan S, Shivdare P, Niranjan T, Williams K, Freudman J, Sehra R. Noncontact identification of sleep-disturbed breathing from smartphone-recorded sounds validated by polysomnography. Sleep Breath. 2019 Mar;23(1):269-279. doi: 10.1007/s11325-018-1695-6. Epub 2018 Jul 18.
Other Identifiers
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SNORE_SOUNDS
Identifier Type: -
Identifier Source: org_study_id
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