A Single Center Study to Demonstrate the Safety and Performance of Lifelight® First Software Application

NCT ID: NCT03998098

Last Updated: 2021-07-26

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

COMPLETED

Total Enrollment

85 participants

Study Classification

OBSERVATIONAL

Study Start Date

2019-04-29

Study Completion Date

2021-05-01

Brief Summary

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This study validates Lifelight® First, a software application, in a laboratory setting. Participants will undergo testing to obtain measurements from one or more of the four vital signs.

Detailed Description

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Assessment of vital signs is an essential part of any clinical assessment and is undertaken regularly on patients accessing healthcare services. The accuracy of these measurements is of vital importance as decisions regarding the urgency of medical review and subsequent management are often influenced by these measures.

The measurement of vital signs as part of normal medical care requires a level of medical / nursing skill or patient training. Observations can be altered by stress or anxiety making the results less representative of the patient's clinical state. This is particularly recognised in the measurement of blood pressure but stress can also alter heart and respiratory rate.

Regular community and/or home monitoring of vital signs is useful in older populations and those with long-term conditions; standard of care methods can be labour intensive for health care providers, leading to greater financial burdens for health services.

Lifelight® First is software which allows non-invasive, non-contact measurement of these observations. It can be used on a tablet (e.g. Apple® iPad®) that possesses an integral camera. The use of computer technology is now commonplace in society so the general public are likely to be accepting of this as a non-threatening method of measurement, thus reducing the impact of anxiety on the results. Lifelight® First therefore has potential application within various areas of the health care system, it could also be useful in settings where direct access to health care is limited or as a part of a telemedicine service.

This study has been designed to evaluate the safety and performance of Lifelight® First, an investigational medical device. The data will be used to support the CE marking of the Lifelight® First device. The study design has been based upon the guidance in ISO standards and also within published scientific literature. Ultimately the data points to be obtained and methodology will be required to follow this guidance in order to obtain the CE mark.

Conditions

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Vital Signs

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Oxygen Saturation (Oximetry)

Arm to determine the performance of the Oxygen Saturation measurement in LifeLight First

Oxygen Saturation (Oximetry)

Intervention Type DIAGNOSTIC_TEST

Participants enter a chamber with a modifiable atmosphere and sit on a bench associated with an exercise bicycle. The subject breathes hypoxic air to achieve various SpO2 readings throughout the range of 80-97%.

The participants undertake recumbent cycling for up to 10 minutes at various intervals and differing oxygen/nitrogen balances to induce changes in their vital signs.

Measurements of the Vital Signs are taken at various time points using Lifelight First and the reference device using 2 observers

Heart Rate (Pulse)

Arm to determine the performance of the Heart Rate measurement in LifeLight First

Heart Rate (Pulse)

Intervention Type DIAGNOSTIC_TEST

Participants enter a chamber with a modifiable atmosphere and sit on a bench associated with an exercise bicycle. The subject breathes hypoxic air to achieve various SpO2 readings throughout the range of 80-97%.

The participants undertake recumbent cycling for up to 10 minutes at various intervals and differing oxygen/nitrogen balances to induce changes in their vital signs.

Measurements of the Vital Signs are taken at various time points using Lifelight First and the reference device using 2 observers

Respiratory Rate

Arm to determine the performance of the Respiratory Rate measurement in LifeLight First

Respiratory Rate

Intervention Type DIAGNOSTIC_TEST

Participants enter a chamber with a modifiable atmosphere and sit on a bench associated with an exercise bicycle. The subject breathes hypoxic air to achieve various SpO2 readings throughout the range of 80-97%.

The participants undertake recumbent cycling for up to 10 minutes at various intervals and differing oxygen/nitrogen balances to induce changes in their vital signs.

Measurements of the Vital Signs are taken at various time points using Lifelight First and the reference device using 2 observers

Blood Pressure

Arm to determine the performance of the Blood Pressure measurement in LifeLight First

Blood Pressure

Intervention Type DIAGNOSTIC_TEST

Participants enter a chamber with a modifiable atmosphere and sit on a bench associated with an exercise bicycle. The subject breathes hypoxic air to achieve various SpO2 readings throughout the range of 80-97%.

The participants undertake recumbent cycling for up to 10 minutes at various intervals and differing oxygen/nitrogen balances to induce changes in their vital signs.

Measurements of the Vital Signs are taken at various time points using Lifelight First and the reference device using 2 observers For participants only participating in the Blood Pressure Arm of the trial, they will not be required to enter the normobaric chamber but will have their blood pressure readings taken in the ambient environment including lying supine in order to generate hypotensive readings.

Interventions

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Oxygen Saturation (Oximetry)

Participants enter a chamber with a modifiable atmosphere and sit on a bench associated with an exercise bicycle. The subject breathes hypoxic air to achieve various SpO2 readings throughout the range of 80-97%.

The participants undertake recumbent cycling for up to 10 minutes at various intervals and differing oxygen/nitrogen balances to induce changes in their vital signs.

Measurements of the Vital Signs are taken at various time points using Lifelight First and the reference device using 2 observers

Intervention Type DIAGNOSTIC_TEST

Heart Rate (Pulse)

Participants enter a chamber with a modifiable atmosphere and sit on a bench associated with an exercise bicycle. The subject breathes hypoxic air to achieve various SpO2 readings throughout the range of 80-97%.

The participants undertake recumbent cycling for up to 10 minutes at various intervals and differing oxygen/nitrogen balances to induce changes in their vital signs.

Measurements of the Vital Signs are taken at various time points using Lifelight First and the reference device using 2 observers

Intervention Type DIAGNOSTIC_TEST

Respiratory Rate

Participants enter a chamber with a modifiable atmosphere and sit on a bench associated with an exercise bicycle. The subject breathes hypoxic air to achieve various SpO2 readings throughout the range of 80-97%.

The participants undertake recumbent cycling for up to 10 minutes at various intervals and differing oxygen/nitrogen balances to induce changes in their vital signs.

Measurements of the Vital Signs are taken at various time points using Lifelight First and the reference device using 2 observers

Intervention Type DIAGNOSTIC_TEST

Blood Pressure

Participants enter a chamber with a modifiable atmosphere and sit on a bench associated with an exercise bicycle. The subject breathes hypoxic air to achieve various SpO2 readings throughout the range of 80-97%.

The participants undertake recumbent cycling for up to 10 minutes at various intervals and differing oxygen/nitrogen balances to induce changes in their vital signs.

Measurements of the Vital Signs are taken at various time points using Lifelight First and the reference device using 2 observers For participants only participating in the Blood Pressure Arm of the trial, they will not be required to enter the normobaric chamber but will have their blood pressure readings taken in the ambient environment including lying supine in order to generate hypotensive readings.

Intervention Type DIAGNOSTIC_TEST

Other Intervention Names

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Welch Allyn Connex Spot Monitor CSM 7500 LifeLight First Welch Allyn Connex Spot Monitor CSM 7500 LifeLight First Two Clinical Observers LifeLight First Welch Allyn Connex Spot Monitor CSM 7500 LifeLight First

Eligibility Criteria

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Inclusion Criteria

1. Subject is informed and has been given ample time and opportunity to think about his/her participation and has given his/her written informed consent
2. Subject is ≥18 years of age
3. Subject's health status: individual is considered to be healthy (hypertension and hypotension is permissible. Other stable diseases at the time of testing are also permissible)
4. Subject is capable of undergoing controlled hypoxaemia to the levels called for the in the protocol with minimal medical risk (unless only participating in the blood pressure study).

Exclusion Criteria

1. Subject cannot expose their face fully for a reading to be taken
2. Subject is unable to give informed consent
3. Subject is outside of the specified age range
4. Subject has already taken part in the study (all 4 sub studies)
5. Subject with significant irregular heart rhythm or any disease that might affect the results of the study
6. Subject is not capable of undergoing controlled hypoxia and would be placed at undue medical risk if this occurred
7. Subject has any contraindications identified that would deem them unsuitable to take part
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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University of Portsmouth

OTHER

Sponsor Role collaborator

Xim Limited

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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University of Portsmouth, Department of Sport and Exercise Science

Portsmouth, England, United Kingdom

Site Status

Countries

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United Kingdom

Other Identifiers

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X4

Identifier Type: -

Identifier Source: org_study_id

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