Independent directory Public ClinicalTrials.gov records United States
ClinicalTrials.gov record
Not listed No phase listed Observational Accepts healthy volunteers

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

ClinicalTrials.gov ID: NCT03775291

Public ClinicalTrials.gov record NCT03775291. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 2, 2026, 2:17 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

Fitbit Sleep Apnea Alert Software Validation Study

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

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.

Study identification

NCT ID
NCT03775291
Recruitment status
Not listed
Study type
Observational
Phase
Not listed
Lead sponsor
Fitbit LLC
Industry
Enrollment
303 participants

Conditions and interventions

Eligibility (public fields only)

Age range
18 Years and older
Sex
All
Healthy volunteers
Accepts healthy volunteers

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Nov 8, 2018
Primary completion
Dec 30, 2022
Completion
Apr 29, 2023
Last update posted
Aug 21, 2022

2018 – 2023

United States locations

U.S. sites
5
U.S. states
4
U.S. cities
5
Facility City State ZIP Site status
Jasper Summit Research Jasper Alabama 35501
Peninsula Sleep Center Burlingame California 94010
Sleep Center Orange County Irvine California 92604
Neurotrials Inc Atlanta Georgia 30342
SleepMed Inc Columbia South Carolina 29201

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 1 non-U.S. site.

Recently updated Sleep Apnea trials

Other public records listing Sleep Apnea. Sorted by last update posted; newest first. Not a recommendation.

All Sleep Apnea trials →

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT03775291, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Aug 21, 2022 · Synced Sep 2, 2026

Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.

Open the official record

The complete protocol, eligibility criteria, and contact information for NCT03775291 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →