The Effects of Sex, Body Mass Index, Day-to-Day Subject Variability for the ProLung Test and Variability of a Single Device When Volume-Averaged Thoracic Bioconductance is Measured With the ProLung Test

June 18, 2019 updated by: Fresh Medical Laboratories

The Effects of Sex, Body Mass Index, Day-to-Day Subject Variability and Variability of a Single Device When Volume-Averaged Thoracic Bioconductance is Measured With the ProLung Test

Assess the repeatability of the ProLung Test

Study Overview

Status

Completed

Conditions

Detailed Description

This repeatability study of the ProLung Test enrolled sixty subjects, 30 male and 30 female, half of each sex with a body mass index (BMI) of 30 or more, and half with a BMI of 28 or less. Each subject was scanned twice on Day One and twice on Day Two. All scans were done by the same operator on the same device. Fifty-nine subjects produced evaluable data. Four models (algorithms) were tested.

Study Type

Observational

Enrollment (Actual)

60

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

Ages Eligible for Study

35 years to 70 years (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Healthy Volunteers

Description

Inclusion Criteria:

  • Age 35 to 70 years
  • Able to understand and fulfill all requirements of this protocol
  • Provide signed informed consent

Exclusion Criteria:

  • Pacemaker or other implanted medical device
  • Current life-threatening medical condition
  • Current or recent use of systemic corticosteroids
  • Pregnant or lactating
  • Unusually strenuous exercise within previous 24 hours
  • Current abuse of alcohol or drugs
  • Medical or anatomical condition that precludes testing of all 62 measurement points
  • Other condition or reason at the discretion of the Principal Investigator or medical monitor

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

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Quantify EPN Scanner variability in transcutaneous volume-averaged thoracic bio-conductance when measured twice on the same subjects by the same operator on a single same day using the same EPN Scanner
Time Frame: 1 day
The null hypothesis is that same-day variability has no effect on scan results (i.e. when scanned twice on the same day).
1 day
Quantify day-to-day within-subject variability when the same operator uses the same EPN Scanner on the same subjects to measure transcutaneous volume-averaged thoracic bio-conductance on two different days within one week.
Time Frame: 1 week
The null hypothesis is that day-to-day variability has no effect on scan results (i.e. when scanned twice on separate days).
1 week
Effects of BMI and Sex on transcutaneous volume-averaged thoracic bio-conductance
Time Frame: 1 week
The null hypothesis is that BMI has no effect on scan results. The null hypothesis is that sex has no effect on scan results.
1 week
Number of participants with device-related adverse events from thoracic bio-conductance measurement.
Time Frame: 1 day
time to complete scan.
1 day

Collaborators and Investigators

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

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)

November 20, 2015

Primary Completion (Actual)

November 21, 2018

Study Completion (Actual)

November 21, 2018

Study Registration Dates

First Submitted

November 25, 2015

First Submitted That Met QC Criteria

June 18, 2019

First Posted (Actual)

June 20, 2019

Study Record Updates

Last Update Posted (Actual)

June 20, 2019

Last Update Submitted That Met QC Criteria

June 18, 2019

Last Verified

June 1, 2019

More Information

Terms related to this study

Other Study ID Numbers

  • PL-209

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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