Sensor Validation Study - Quality Assurance

March 19, 2019 updated by: PMD Solutions

A Quality Assurance Study of Respiratory Rate Measurements on Obese Patients With a Novel Monitoring Technology

The respiratory rate is an important parameter in clinical medicine. It is defined as the number of breaths per minute. Currently this is measured at the bedside in clinical practice by counting the breaths, however the gold standard for measuring this vital sign is the capnograph. For the patient, this involves wearing a tube in their nose and around their ears while trying to minimise their movement and talking so that the measurements can be taken.

A new respiratory rate monitor, RespiraSense, is non-invasive and measures the respiratory rate by measuring the displacement between the ribs and abdomen. This research study is intended to validate that this technology is effective and accurate on people with a bigger body mass.

Subjects with a BMI > 35 will be invited to participate should they meet all of the eligibility criteria. If patients agree to participate, following informed consent, subjects will be monitored for one hour with both the capnograph and RespiraSense measuring at the same time so their results can be compared

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
34

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United Kingdom
      • Portsmouth, United Kingdom, PO6 3LY
        • Queen Alexandra Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

No older than 18 years (Child, Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Probability Sample

Study Population

Obese patients with a BMI ≥35

Description

Inclusion Criteria:

  • ≥ 18 Years

  • Have a BMI ≥35

    • For the sub-group analysis at least 5 subjects with a BMI 35-49 and at least 5 BMI > 50 will be needed
  • Are willing to voluntarily sign a statement of informed consent to participate in this investigation

Exclusion Criteria:

  • Allergic to medical grade skin adhesive
  • Continuous oral long term steroid use. To be free from oral steroid use this is defined as not using oral steroids in the 4 weeks previous to enrolment
  • Patients under the influence of substance abuse (drug or alcohol) that may interfere with their ability to cooperate and comply with the investigation procedures
  • Any disorder, including cognitive dysfunction, which would affect the ability to accurately complete questionnaires and freely give full informed consent

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Cohort
  • Time Perspectives: Prospective

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Comparison of PMD RespiraSense against capnography in obese patients.
Time Frame: 1 hour
Analysed using a Bland Altman (BA) analysis to measure limits of agreement between both methods. The BA analysis will correct for repeated measures within each subject if required. In addition, a Deming Regression will be performed on the collected data.
1 hour

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Comparison of PMD RespiraSense in obese patients with BMI below 50 and those with BMI of 50 or above.
Time Frame: 1 hour
Analysed using a Bland Altman (BA) analysis to measure limits of agreement between both methods. The BA analysis will correct for repeated measures within each subject if required. In addition, a Deming Regression will be performed on the collected data.
1 hour
Identification of any accuracy spread patterns as BMI increases.
Time Frame: 1 hour
Analysed using a Bland Altman (BA) analysis to measure limits of agreement between both methods. The BA analysis will correct for repeated measures within each subject if required. In addition, a Deming Regression will be performed on the collected data.
1 hour
Collection of feedback on device comfort when worn by patients with high BMI.
Time Frame: 1 hour
Will not be analysed formally.
1 hour

Other Outcome Measures

Other Outcome Measures

For clinical trials, a planned measurement described in the protocol that is used to determine the effect of an intervention/treatment on participants. For observational studies, a measurement or observation that is used to describe patterns of diseases or traits, or associations with exposures, risk factors, or treatment. Types of outcome measures include primary outcome measure and secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Exploratory: To measure RespiraSense device alarm generation and assess the rationale behind these to determine if false alarms and therefore alarm fatigue is occurring
Time Frame: 1 hour
Will not be analysed formally.
1 hour

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
PMD Solutions

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Lorraine Albon, Portsmouth Hospitals NHS Trust

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
July 28, 2017

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
August 7, 2018

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
September 7, 2018

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
September 29, 2017

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
October 10, 2017

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
October 11, 2017

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
March 20, 2019

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 19, 2019

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
March 1, 2019

More Information

Terms related to this study

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • PMD-CS-011

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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Locations

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