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Obstructive Sleep Apnea of AdultNCT06603441

Reliability of the Samsung Galaxy for the Detection of Moderate to Severe Obstructive Sleep Apnea

An observational study of Obstructive Sleep Apnea of Adult, run by Stanford University at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The study will test the reliability of the Samsung Galaxy for the Detection of Moderate to Severe Obstructive Sleep Apnea (OSA) Read more about this study

Who is it for?
Ages 22 years and older
Conditions the study is for
Obstructive Sleep Apnea of Adult
What is being tested?
Samsung Galaxy Watch
How many people
152 participants
Where
1 siteUnited States
Study dates
17 Dec 2024to 23 Dec 2025
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 22 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: 1. Patient's visiting Stanford Hospital and Clinics 2. Digital Recruitment - online advertisement campaign

Who may be able to join

  • 22 years of age or older
  • High pre-test likelihood of moderate to severe obstructive sleep apnea (OSA) based on screening questionnaires (STOP-Bang and Epworth Sleepiness Scale); or prior diagnosis of moderate-severe OSA.
  • Able to provide informed consent confirmation

Who cannot join

  • Severe and/or other acute medical illnesses as determined by the Investigator, in particular: Cardiac conditions such as Congestive Heart Failure (CHF), atrial fibrillation, Hx of Movement disorders: Parkinson's, Tremor, Lung conditions: Chronic Obstructive Pulmonary Disease (COPD), chronic bronchitis, emphysema, pulmonary fibrosis, acute episode of flu, allergies, asthma.
  • Active comorbid sleep disorders, such as severe insomnia, restless legs syndrome, Periodic Leg Movement During Sleep (PLMS), narcolepsy, idiopathic hypersomnia
  • Severe and/or unstable psychiatric disorders such as mood, anxiety, or psychotic disorders
  • Individual has a condition the Investigator believes would interfere with his or her ability to provide informed consent, comply with the study protocol, which might confound the interpretation of the study results or put the person at undue risk
  • Inability to use a Samsung Galaxy device for sleep tracking
  • Inability to have two nights in the Stanford sleep lab.
  • Participants who are pregnant
  • Tattoos or scars covering the forearm area of both hands

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Stanford University

    Palo Alto, California, 94305

Other trials in United States

About this study

The study will test the reliability of the Samsung Galaxy for the Detection of Moderate to Severe Obstructive Sleep Apnea (OSA)

Read the detailed description

A prospective cohort of 150 individuals 22 years or older with a prior diagnosis or with a high likelihood of having moderate to severe OSA, screened using STOP-Bang and Epworth Sleepiness Scale questionnaires will be recruited and will utilize the Samsung Galaxy Watch technology to monitor sleep patterns, oxygen saturation, PPG, and heart rate variability amongst other physiologic parameters. All data will be collected over the course of two intervention nights in the sleep lab and at home for three nights.

Being tested
Samsung Galaxy Watch

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Samsung Galaxy WatchDiagnostic test

    Samsung Galaxy Watch technology to monitor sleep patterns, oxygen saturation, PPG, and heart rate variability amongst other physiologic parameters.

Study groups in NCT06603441
Study groupRoleWhat they receive
Samsung Galaxy Watch technologyAll participants screened will utilize the Samsung Galaxy Watch technology to monitor sleep patterns, oxygen saturation, PPG, and heart rate variability amongst other physiologic parameters. All data will be collected over the course of two intervention nights in the sleep lab and at home for three nights
Receives: Diagnostic Test: Samsung Galaxy Watch

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. 4% Apnea Hypopnea Index (AHI)

    Assessment of the 4% Apnea Hypopnea Index to determine the severity of sleep apnea

    Measured: Day 1 (Visit 1), Day 5 (Visit 2)

Secondary outcomes (1)
  1. User acceptance and feasibility of Galaxy Watch technology

    Evaluation of,

    • Ease of use (scored from 1-5, where 1 indicates low ease of use and 5 indicates high ease of use)
    • Comfort (scored from 1-5, where 1 indicates low comfort and 5 indicates high comfort)
    • Compliance (dropout rate and the number of nights and hours of sleep recorded for each participant)

    Measured: Day 1 (Visit 1), Day 5 (Visit 2), At home monitoring (Day 2, 3 &4)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted19 Sep 2024
  2. Study start17 Dec 2024
  3. Primary completion23 Dec 2025
  4. Study completion23 Dec 2025

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
152 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06603441
Sponsor's protocol ID
76129
Status last verified
Mar 2026
First submitted
7 Sep 2024
Last updated
15 Apr 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Publications

  • Alavi A, Costa E, Matsumoto MMS, Odenwald N, Elkarra N, Ma Y, Taweesedt PT, Kawai M, Kushida C, Capasso R. Smartwatch-based detection of moderate-to-severe and high-risk obstructive sleep apnea. J Clin Sleep Med. 2026 Aug 27;22(1):150. doi: 10.1007/s44470-026-00159-8.

    PubMed 42661136
  • Alavi A, Costa E, Matsumoto MMS, Odenwald N, Kushida C, Bahmani A, Capasso R. Comprehensive Evaluation of Night-to-Night Variability in Polysomnography Metrics and Apnea-Hypopnea Index-Based Diagnostic Reclassification. Chest. 2026 Jun 16:S0012-3692(26)00782-8. doi: 10.1016/j.chest.2026.06.004. Online ahead of print.

    PubMed 42302984

Questions about this trial

What is this clinical trial studying?

An observational study of Obstructive Sleep Apnea of Adult, run by Stanford University at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 15 Apr 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

4% Apnea Hypopnea Index (AHI) (time frame: Day 1 (Visit 1), Day 5 (Visit 2)). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT06603441, which also lists 2 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 15 Apr 2026.

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