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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT03306537
Other study ID # PMD-CS-011
Secondary ID
Status Completed
Phase
First received
Last updated
Start date July 28, 2017
Est. completion date September 7, 2018

Study information

Verified date March 2019
Source PMD Solutions
Contact n/a
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

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


Recruitment information / eligibility

Status Completed
Enrollment 34
Est. completion date September 7, 2018
Est. primary completion date August 7, 2018
Accepts healthy volunteers No
Gender All
Age group N/A to 18 Years
Eligibility 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 Design


Related Conditions & MeSH terms


Intervention

Device:
RespiraSense Respiratory Rate Monitor
RespiraSense device will be attached at the same time as the capnograph (gold standard) and both will measure simultaneously for one hour

Locations

Country Name City State
United Kingdom Queen Alexandra Hospital Portsmouth

Sponsors (1)

Lead Sponsor Collaborator
PMD Solutions

Country where clinical trial is conducted

United Kingdom, 

Outcome

Type Measure Description Time frame Safety issue
Other Exploratory: To measure RespiraSense device alarm generation and assess the rationale behind these to determine if false alarms and therefore alarm fatigue is occurring Will not be analysed formally. 1 hour
Primary Comparison of PMD RespiraSense against capnography in obese patients. 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 Comparison of PMD RespiraSense in obese patients with BMI below 50 and those with BMI of 50 or above. 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 Identification of any accuracy spread patterns as BMI increases. 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 Collection of feedback on device comfort when worn by patients with high BMI. Will not be analysed formally. 1 hour
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