Investigating a Wrist-sensor Oximeter to Screen for Sleep Apnoea.

NCT ID: NCT04018547

Last Updated: 2019-07-12

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Total Enrollment

30 participants

Study Classification

OBSERVATIONAL

Study Start Date

2019-09-17

Study Completion Date

2019-12-17

Brief Summary

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The primary study objective is to investigate sensitivity and specificity of a wrist sensor pulse oximeter (the Oxitone Medical Oxitone 1000M device) to screen for obstructive sleep apnoea. This study will involve thirty participants attending a sleep centre suspected of suffering from obstructive sleep apnoea (case finding screening). The secondary objective is to assess patient convenience with the screening procedure.

Detailed Description

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This is an observational study to assess the sensitivity and specificity of a wrist sensor pulse oximeter (Oxitone Medical Oxitone 1000M) to identify obstructive sleep apnoea cases in patients referred to the London Sleep Centre (case finding screening, or case only study). The wrist sensor pulse oximeter streams data (pulse rate, heart rate variability (HRV), blood oxygen saturation levels (SPO2), actigraphy data and skin temperature data) to a software application using bluetooth connectivity to be stored in a securely encrypted database cloud for analysis. The investigators at the sleep centre will be masked when analysing the data from the wrist sensor pulse oximeter when deciding on diagnosis of obstructive sleep apnoea. Data from the wrist sensor oximeter device will be statistically compared with the data from a conventional PPG fingertip oximeter and Peripheral Arterial Tonometry device currently in use. The study outcome will be whether the wrist sensor pulse oximeter device could be used in patients to screen reliably for obstructive sleep apnoea. The study also will include patient feedback on convenience of the screening procedure. The study will not affect routine patient medical management and care for patients assessed at the sleep centre.

Conditions

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Obstructive Sleep Apnea

Study Design

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Observational Model Type

CASE_ONLY

Study Time Perspective

RETROSPECTIVE

Interventions

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Patient wears a wrist sensor oximeter device for one to two nights.

Patients will be asked to complete a study questionnaires of STOPBANG, SCI-8 (Sleep Condition Indicator-8 questionnaire for insomnia), Epworth questionnaires and medical history. The clinician will record blood pressure, pulse rate and regularity, body mass index and neck circumference. Subjects will be required to wear the wrist sensor pulse oximeter for 1-2 nights. The Oxitone 1000M device measures pulse rate, blood oxygen saturation and movement. The oxygen desaturation events from the wrist sensor device will be statistically compared with the diagnosis assessed using the conventional PPG oximetry, Peripheral Arterial Tonometry and clinical assessment. (clinicians will be masked when analysing the data from the wrist sensor pulse device).

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* Thirty consecutive patients referred to the sleep Centre for screening for sleep apnoea that consented to involvement in the study.

Exclusion Criteria

* Patients who are unable to give written informed consent.
* anaemia or dysfunctional hemoglobin
* upper limb complaints affecting the ability to wear the watch like wrist sensor device such as tenderness, deformity or swelling, skin complaints such as ulceration, swelling or skin breaks
* impairment in circulation in the left upper limb (active Raynauds or other vascular impairment)
* neurological conditions such as tremor or convulsions
* Medical conditions likely to affect the blood oxygen such as chronic obstructive pulmonary disease (COPD) and chronic asthma
* Neurological conditions likely to affect breathing such as stroke
* Conditions likely to affect autonomic nervous system such as diabetes mellitus
Minimum Eligible Age

18 Years

Maximum Eligible Age

68 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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The London Sleep Centre

UNKNOWN

Sponsor Role collaborator

Oxitone Medical Ltd.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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London Sleep Centre

London, , United Kingdom

Site Status

Countries

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United Kingdom

Central Contacts

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Leon Eisen, PhD

Role: CONTACT

+97278346731

Werner Stipp, MBCHB MFOM DIH

Role: CONTACT

+447597558426

Facility Contacts

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Irshaad Ebrahim, MBCHB FRCPsych

Role: primary

+442077250523

Study Documents

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Document Type: Individual Participant Data Set

De-identified data for primary and secondary outcome measures

View Document

Other Identifiers

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265604

Identifier Type: -

Identifier Source: org_study_id

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