NCT06221124

Brief Summary

Recently, various electronic lifestyle activity monitoring devices (ELAM) are increasingly commercially available. However, the quality and reliability of the data from ELAM are unclear, compared with polysomnography (PSG), which is the gold-standard sleep assessment method. Thus, combining ELAM with PSG will validate ELAM and improve its clinical and research utilization. The investigators propose to conduct this study to validate ELAM device for sleep assessment. The investigators will compare Belun Ring data collection and overnight in-lab PSG measures of Sleep-Disordered Breathing (SDB) and sleep architecture in adults with obstructive sleep apnea (OSA) symptoms. The investigators propose to recruit a total of 40 participants with symptoms of OSA. The overall accuracy, sensitivity and specificity of Belun Ring to assess SDB and sleep architecture will be validated by using PSG analysis as a gold standard.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
40

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Jul 2020

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

July 15, 2020

Completed
1.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2021

Completed
1.5 years until next milestone

Study Completion

Last participant's last visit for all outcomes

June 12, 2023

Completed
7 months until next milestone

First Submitted

Initial submission to the registry

January 12, 2024

Completed
12 days until next milestone

First Posted

Study publicly available on registry

January 24, 2024

Completed
Last Updated

January 24, 2024

Status Verified

January 1, 2024

Enrollment Period

1.4 years

First QC Date

January 12, 2024

Last Update Submit

January 22, 2024

Conditions

Outcome Measures

Primary Outcomes (1)

  • Validation with gold-standard polysomnography (PSG) recording

    Concordance rate of bAHI from Belun Ring and apnea-hypopnea Index (AHI) from PSG

    1 year

Study Arms (1)

BEL-Participant

EXPERIMENTAL

First, we will measure the size of the finger of the participant and select appropriate size of Belun Ring device and the participant will be instructed to wear it on a finger in addition to regular PSG set up on the night of sleep study. Simultaneous recording of Belun Ring data {pulse oximeter, pulse rate and actigraphy} and standard PSG will be performed for one night.

Device: Belun Ring Pulse Oximeter

Interventions

Belun Ring Pulse Oximeter allows measurement and analysis of oximetry, pulse rate, photo-plethysmography (PPG), and accelerometer signals from the proximal phalanx of index finger. Sleep stage (bSTAGES) and respiratory event index (bAHI) are estimated.

BEL-Participant

Eligibility Criteria

Age18 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age between 18 to 80 years old. Ideally balanced for sex and age (18 to 80 years old)
  • no more than 75% of subjects in one bin of: (male, female)
  • no more than 50% of subjects in one age-group (18-29, 30-39, 40-49, 50-59, 60-80)
  • Patients with OSA symptoms (snoring, excessive daytime sleepiness or witnessed apnea, etc.)
  • Without any unstable medical or psychiatric co-morbidities that would be expected to interfere with the study.
  • If taking any medication, must be on a stable dose of medication for a month
  • Able to read and understand English

You may not qualify if:

  • Presence of any significant systemic or unstable medical condition which could lead to difficulty complying with the protocol, suicidality, current regular use of psychiatric medications, opiates, or thyroid medications, dementia, current substance abuse, post-traumatic or psychotic disorders, bipolar disorder; any significant neurologic disease, including possible and probable dementia, Parkinson's or Huntington's disease, brain tumor, progressive supranuclear palsy, seizure disorder, subdural hematoma, multiple sclerosis, history of significant head trauma, history of alcohol or substance use disorder within the past 2 years (DSM V criteria);
  • If positive airway pressure (PAP) titration study or split night study (diagnostic and PAP titration study combined)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Stanford Sleep Medecine Center

Redwood City, California, 94063, United States

Location

MeSH Terms

Conditions

Sleep Apnea Syndromes

Condition Hierarchy (Ancestors)

ApneaRespiration DisordersRespiratory Tract DiseasesSleep Disorders, IntrinsicDyssomniasSleep Wake DisordersNervous System Diseases

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
DIAGNOSTIC
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 12, 2024

First Posted

January 24, 2024

Study Start

July 15, 2020

Primary Completion

December 1, 2021

Study Completion

June 12, 2023

Last Updated

January 24, 2024

Record last verified: 2024-01

Data Sharing

IPD Sharing
Will not share

Locations