CI

At a glance

ClinicalIndex Comparison Record
N/ACompleted· 70 enrolled
Drug / intervention
Belun Ring Pulse Oximeterdevice
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT04121923
NCT04121923N/ACompleted

Validation of a Novel Device for Screening Patients With Symptoms of Obstructive Sleep Apnea

Belun Technology Company Limited·interventional·Posted Oct 10, 2019·Updated May 26, 2026

In Brief

A clinical study evaluating Belun Ring Pulse Oximeter for Sleep Apnea, Obstructive. Completed, enrolled 70 participants across 1 site.

Detailed Summary

The purpose of this study is to evaluate the sensitivity and specificity of the Belun Ring Pulse Oximetry system for screening of obstructive sleep apnea (OSA) in adults during standard polysomnography sleep study conditions. The primary outcome metric is the Apnea-Hypopnea Index (AHI). The goal, in its entirety, is to evaluate the performance of the Belun Ring Pulse Oximeter during a standard polysomnography sleep study and its ability to compare to the determined Apnea-Hypopnea Index (AHI) of the subjects. It is expected that the Belun Ring Pulse Oximeter will adequately record SpO2, pulse rate, body position and heart rate variability throughout the duration of the study.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesUnited States
CollaboratorsClinimark, LLC

Timeline

N/ACompletedFinished
201820192020202120222023202420252026
First PostedOct 10, 2019
Enrollment StartMar 1, 2018
Primary CompletionApr 15, 2019
Study CompletionMay 30, 2019
TodayJul 2, 2026
Enrollment to primary: 1.1 yearsPosted 6.7 years ago

Interventions

Belun Ring Pulse Oximeterdevice

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. Total sleep time (Ring-TST) and respiratory event index (Ring-REI) are estimated