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Validation of Software for Assessment of Sleep Apnea From Data Acquired by a Wearable Smartwatch

Fitbit Sleep Apnea Alert Software Validation Study

Status
UNKNOWN
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT03775291
Enrollment
303
Registered
2018-12-13
Start date
2018-11-09
Completion date
2023-04-30
Last updated
2022-08-22

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Sleep Apnea

Brief summary

This clinical validation study aims to evaluate the utility of Fitbit's Sleep Apnea Alert software for minimally invasive monitoring of sleep apnea events to alert users of their risk of sleep apnea. The Sleep Apnea Alert software analyses data from a Fitbit commercially available wrist photoplethysmogram (PPG) device. The Sleep Apnea Alert software is an investigational software as medical device (SaMD) and is designed to retrospectively process data and flag users who have physiological signals consistent with an apnea-hypopnea index (AHI) of 15 or greater. This clinical validation study will be used to validate Fitbit's PPG-based sleep apnea algorithm. The outputs of the Fitbit Sleep Apnea Alert software will not be available to study participants, as the scope of this study is to gather validation data only and does not include testing product usability components.

Interventions

DIAGNOSTIC_TESTSimultaneous assessment of sleep apnea by polysomnogram and wearable device

Characterization of sleep apnea by lab-based polysomnogram

Sponsors

Fitbit LLC
Lead SponsorINDUSTRY

Study design

Observational model
CASE_CONTROL
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* Capable of giving informed consent * Comfortable reading the provided written study instructions in English (and/or local language) and using a smartphone in English (and/or local language). * Have medical insurance either in the form of private insurance or a national health program.

Exclusion criteria

* No implanted cardiac devices * Not pregnant. Pregnancy status will be confirmed per patient report of medical history, i.e., patients will be asked if they are pregnant or may be pregnant, and date of last menstrual cycle. * No medical conditions which might lead to consistently low levels of perfusion in the vasculature at the wrist

Design outcomes

Primary

MeasureTime frameDescription
Comparison of PSG-assessed AHI with multi-night estimate derived from wearable device.Nightly basis averaged over 7 nights.Percent agreement between subjects classified as Apnea Hypopnea Index (AHI)≥15 or \<15 as determined by a single night of lab based polysomnogram , versus the corresponding estimate (averaged over 7 nights) from the wearable device. \[This primary outcome data will also be expressed as per-subject sensitivity and specificity of the wearable device to correctly identify subjects with AHI≥15 and AHI\<15 respectively\]

Secondary

MeasureTime frameDescription
Single night comparison between PSG and wearable device data on a per-subject basis1 nightPercent agreement between subjects classified as Apnea Hypopnea Index (AHI)≥15 or \<15 as determined by a single night of lab based polysomnogram , versus the corresponding estimate on the same night as PSG from the wearable device. \[This primary outcome data will also be expressed as per-subject sensitivity and specificity of the wearable device to correctly identify subjects with AHI≥15 and AHI\<15 respectively\]
Single night comparison between PSG and wearable device data on a per-epoch basis1 nightPercent agreement on a per one-minute epoch basis for the presence of sleep apnea between the polysomnogram and the corresponding simultaneous estimate from the wearable device .

Countries

Ireland, United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026