- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04467112
Non Inferiority Trial for Detection of nCOVID-19 Through Analysis of Exhaled Breath Aerosols
This study aims to evaluate several of Owlstone Medical's Breath Biopsy aerosol respiratory droplet capture techniques for the detection of nCOVID-19.
These are single use disposable breath capture devices with removable filters and fitted PVA strip that directly sample exhaled breath aerosols and therefore, directly sample the primary transmission route for the virus. They can be used independently and shipped for analysis for the presence of nCOVID-19 using established existing assays available in any reference lab.
The trial is a non-inferiority trial comparing diagnostic accuracy of collection via face mask vs. available diagnostic procedures in standard care and will also asses the feasibility of patient use of the equipment.
Subjects will be recruited at the Addenbrookes Hospital, Cambridge. Minimal patient characteristics (e.g. age, sex) are collected.
Between 20 and 100 subjects with with a positive nCOVID-19 diagnosis will be sampled to obtain to address the primary study hypothesis. Due to the pre-test probability of patients being positive for nCOVID-19 is unknown we will monitor the number of sampled subjects with a positive diagnosis on a weekly basis. The clinical diagnosis of the subject based on a combination of imaging, viral diagnostics and clinical assessment will be used as the reference standard. When this number hits 100 the study will be discontinued. In total no more than 500 subjects shall be sampled in this trial.
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Subjects will be recruited for the study during their scheduled appointments per clinical practice to the site, no separate study visit is required.
The participant's involvement in the study will be limited to one visit (per routine practice) only. No additional follow up is required.
For the purpose of the study a breath sample will be collected using the Breath Biopsy face masks. Collection of exhaled breath aerosols using these single use, disposable face masks will require subjects to breath normally into these face masks, the total collection time will not exceed one hour. It is expected to reduce collection times after initial validation steps to the shortest time providing sufficient diagnostic accuracy.
Given the non-invasive nature of these breath collections subjects can immediately provide up to two samples using the Breath Biopsy face masks. The breath collection should occur within 24 hours of the diagnostic sample.
Collected samples will be either frozen or shipped for rtPCR analysis of the presence of nCOVID-19 RNA. The two Breath Biopsy face masks can be used as technical replicates and/or to validate different storage conditions.
Study Type
Enrollment (Actual)
Contacts and Locations
Study Locations
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Cambridge, United Kingdom, CB2 0QQ
- Cambridge University Hospital NHS
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Sampling Method
Study Population
Description
Inclusion Criteria:
- Provide written informed consent
- Be 16 years or older
- Suspected or confirmed nCOVID-19 infection
Exclusion Criteria:
- Subjects unable to provide written informed consent
Ineligible subjects will specifically include subjects:
- deemed unlikely to be able to maintain oxygen saturation of greater than 90% while breathing room air for 30 seconds Require non-invasive ventilation or high flow nasal oxygen
- who require inotropic medication to maintain adequate organ perfusion
- communication barrier and / or unable to comply with the instructions to use the Breath Biopsy face masks
Study Plan
How is the study designed?
Design Details
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Detection of nCOVID-19 using a face mask
Time Frame: 1 year
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The primary aim of this study is to establish non-inferiority of the Breath Biopsy face masks with various respiratory droplet (aerosol) capture techniques for the detection of nCOVID-19 compared to the current diagnostic test results per standard practice.
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1 year
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Independent Patient use of face mask
Time Frame: 1 year
|
The secondary objective is to assess the feasibility of independent use of the Breath Biopsy face masks.
This will be measured by means of patient reported feedback on their level of comfort in performing the breath collection
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1 year
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Collaborators and Investigators
Sponsor
Collaborators
Investigators
- Study Chair: Stefan Marciniak, Cambridge Institute for Medical Research
Study record dates
Study Major Dates
Study Start (ACTUAL)
Primary Completion (ACTUAL)
Study Completion (ACTUAL)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (ACTUAL)
Study Record Updates
Last Update Posted (ACTUAL)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Other Study ID Numbers
- COVID-Breath
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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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