NCT05466864

Brief Summary

Obstructive sleep apnea (OSA) is prevalent in patients with stroke and has a negative effect on outcomes by predisposing them to recurrent stroke, increasing mortality, and so forth. Therefore, it is extremely important to identify OSA in patients with stroke. Wearable devices can greatly reduce the manpower and material requirements of traditional laboratory-based polysomnography (PSG). With Photoplethysmography (PPG) technology and neural network algorithms, the Belun ring and the sleeping platform not only can detect blood oxygen, and heart rate but also can identify sleep stage and estimate the severity of sleep apnea. In this study, inpatients with acute ischemic stroke in the hospital will proceed with three nights test for recording the parameters of the autonomic nervous system in the acute phase, evaluate whether sleep apnea and the feasibility of the Belun sleep platform. It is important that early recognition of OSA and prompt treatment, which can potentially improve OSA-associated adverse outcomes, as well as understanding the degree of autonomic nervous function impairment for patients with acute ischemic stroke. After smoothing this process, it can help clinicians more accurately comprehend the condition, timing of admission, and discharge.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
120

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started May 2022

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
unknown

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

May 4, 2022

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

July 11, 2022

Completed
9 days until next milestone

First Posted

Study publicly available on registry

July 20, 2022

Completed
10 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 3, 2023

Completed
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

May 3, 2024

Completed
Last Updated

July 20, 2022

Status Verified

July 1, 2022

Enrollment Period

12 months

First QC Date

July 11, 2022

Last Update Submit

July 18, 2022

Conditions

Keywords

Obstructive Sleep ApneaCentral Sleep ApneaStrokeSleep Position

Outcome Measures

Primary Outcomes (1)

  • AHI, duration with SpO2 < 90%, and SpO2 nadir, as well as sleep stage parameters (total sleep time [TST], wake time, REM time, and NREM time)

    To specifically assess the accuracy of BSP bAHI in predicting OSA by comparing to the concurrent in-lab PSG-AHI and to determine the accuracy of BSP sleep stage parameters by comparing to the concurrent PSG. BSP bAHI, BSP time with SpO2 \< 90%, and BSP-SpO2 nadir will be extracted from BSP and compared to PSGAHI (4% hypopnea criteria), PSG time with SpO2 \< 90% (PSG-T90), PSG-SpO2 nadir extracted from the concurrent PSG. BSP sleep stage parameters (total sleep time \[TST\], wake time, REM time, and NREM time) will be extracted from BSP and compared to the same parameters of the concurrent PSG. Epoch-by-epoch comparison will be performed.

    1 year

Secondary Outcomes (3)

  • Duration of BSP use and technically valid recording time

    1 year

  • Score of STOP-Bang

    1 year

  • HRV parameters (including both frequency and time domain) ,the length of hospital stay, NIH Stroke Scale (NIHSS) score, and modified Rankin score (mRS)

    1 year

Study Arms (1)

TMU Hospital

EXPERIMENTAL

Potential participants with suspected OSA will be identified from the schedule of the TMU sleep labs. Those subjects who satisfy the study conclusion and exclusion criteria will be approached and invited to participate in the study.

Device: Belun Sleep platform

Interventions

BSP(Belun Technology Company Limited) is a novel wearable system using a neural network algorithm that consists of a patented wearable device (Belun Ring), a charging cradle, and cloud-based software. The Belun Ring, an FDA-cleared pulse oximeter, acquires signals from the radialis indicis artery of the proximal index finger. The Belun Ring total sleep time can be derived from features extracted from accelerometer, SpO2, and PPG signals, whereas Belun Ring AHI can be derived from Ring-TST and features extracted from HRV and SpO2 changes. The BSP proprietary OSA detection algorithm was using neural network. BSP performance can be improved by training the algorithm through continual data collection. To our knowledge, BSP is the only validated sleep platform using a medical-grade wearable pulse oximeter, actigraphy, and artificial intelligence algorithm that has the capability to identify sleep stages, detect OSA events, and monitor autonomic nervous system activity changes during sleep.

TMU Hospital

Eligibility Criteria

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

You may qualify if:

  • Hospitalized patients with confirmed acute ischemic stroke
  • Age 18-80
  • Able to consent

You may not qualify if:

  • History of atrial fibrillation, LVEF \< 45%, pacemaker/defibrillator, left ventricular assist device (LVAD), or status post-cardiac transplantation, devastating strokes ( mRS \>= 4).
  • Aphasia, severe bulbar palsy, unable to comprehend, consent, or answer questionnaires.
  • Unstable cardiopulmonary status.
  • Recent surgery including tracheotomy in 30 days.
  • On narcotics.
  • On O2, PAP device, ventilator, diaphragmatic pacing, or any form of nerve stimulator
  • unable to understand instructions or to accurately use BRP during the instruction session.
  • Patients with technically valid recording time under 4 hours will be excluded.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Taipei Medical University Shuang Ho Hospital

New Taipei City, 235, Taiwan

RECRUITING

MeSH Terms

Conditions

Sleep Apnea SyndromesStrokeSleep Apnea, ObstructiveSleep Apnea, Central

Condition Hierarchy (Ancestors)

ApneaRespiration DisordersRespiratory Tract DiseasesSleep Disorders, IntrinsicDyssomniasSleep Wake DisordersNervous System DiseasesCerebrovascular DisordersBrain DiseasesCentral Nervous System DiseasesVascular DiseasesCardiovascular Diseases

Study Officials

  • Wen-Te Liu, MD. PhD

    Taipei Medical University Shuang Ho Hospital

    STUDY DIRECTOR

Central Study Contacts

Wen-Te Liu, MD. PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
DIAGNOSTIC
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Director of Sleep Center

Study Record Dates

First Submitted

July 11, 2022

First Posted

July 20, 2022

Study Start

May 4, 2022

Primary Completion

May 3, 2023

Study Completion

May 3, 2024

Last Updated

July 20, 2022

Record last verified: 2022-07

Data Sharing

IPD Sharing
Will not share

Locations