EXhaled Hydrogen Peroxide As a Marker of Lung diseasE (EXHALE) Pilot Study. (EXHALE Pilot)
A Cross-sectional, Feasibility Study to Explore the Use of a New Device (Inflammacheck™) in Measuring the Level of Exhaled Breath Condensate Hydrogen Peroxide (EBC H2O2) in Patients With Asthma, COPD, and Healthy Volunteers. The EXHALE Pilot
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Detailed Description
Hydrogen Peroxide levels in Exhaled Breath Condensate (EBC) is a direct biomarker of oxidative stress from the airway epithelium. Levels have been shown to be raised in asthma and Chronic Obstructive Pulmonary Disease (COPD) both in stable and exacerbating states.
Previously it has been difficult to measure this volatile compound away from a laboratory based setting. However a new device has been developed to measure Hydrogen peroxide levels in exhaled breath by the patients side.
This Pilot study will test this new device in a clinical setting. It will assess whether the device can monitor levels consistently and reliably and whether it can distinguish disease from healthy individuals.
Study Type
Study Type
Enrollment (Actual)
Enrollment
Contacts and Locations
Study Contact
Study Contact
- Name: Anoop J Chauhan, PhD
- Email: anoop.chauhan@porthosp.nhs.uk
Study Contact Backup
- Name: Daniel M Neville, MBBS BSc
- Email: daniel.neville@porthosp.nhs.uk
Study Locations
-
-
-
Portsmouth, United Kingdom, PO6 3LY
- Portsmouth Hospitals NHS Trust
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-
Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Sampling Method
Study Population
Three populations of older adolescent and adult patients (all aged ≥16yrs) will be invited to participate:
- Asthma patients (n=30)
- COPD patients (n=30)
- Comparator group (n=30) - Volunteers with no previous history of lung disease.
Description
Inclusion Criteria:
- Subject has a clinician made diagnosis of asthma with symptoms for ≥ 3 months supported by objective evidence of airflow variability, reversibility or airway hyper-responsiveness
- Subject has a confirmed, clinician made diagnosis of COPD for ≥ 3 months supported by spirometric evidence of fixed airflow limitation (post-bronchodilator ratio of FEV1/FVC <0.7) recorded at any time
- Subject has no known history of lung disease (defined as no current clinical diagnosis of, or be receiving treatment for, a lung disease).
- Subject is willing and able to give informed consent for participation in the study.
Exclusion Criteria:
- Subject has existing co-morbidities that may prevent them from performing spirometry, FeNO or other study measurements (at the discretion of the clinical investigator).
- Subject has known other lung, chest wall, neuromuscular, or cardiac disease or abnormality (including end-stage disease or cancer) that would confound symptom scores and spirometry.
- Subject has received treatment for an exacerbation of their respiratory disease within the last 2 weeks.
- In the opinion of the clinical investigator, participant could be put at risk of harm by having to perform any of the study procedures.
- Subject is unable to comprehend the study and provide informed consent, e.g. insufficient command of English in the absence of someone to adequately interpret.
Study Plan
How is the study designed?
Design Details
- Observational Models: Case-Control
- Time Perspectives: Cross-Sectional
Number of groups / cohorts
Cohorts and Interventions
Group / CohortGroup / Cohort |
Intervention / TreatmentIntervention / Treatment |
|---|---|
|
Asthma Patients
30 people who suffer from a confirmed diagnosis of asthma
|
A new hand-held, Non-invasive breathing test, that only requires tidal breathing.
|
|
Chronic Obstructive Pulmonary Disease Patients
30 people who suffer from a confirmed diagnosis of COPD
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A new hand-held, Non-invasive breathing test, that only requires tidal breathing.
|
|
Healthy Controls
30 healthy volunteers who have no known diagnosis of Lung disease
|
A new hand-held, Non-invasive breathing test, that only requires tidal breathing.
|
What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Time Frame |
|---|---|
|
Exhaled Breath Condensate hydrogen peroxide levels as measured by the inflammacheck device.
Time Frame: 12 months
|
12 months
|
Secondary Outcome Measures
Secondary Outcome Measures
Outcome Measure |
Time Frame |
|---|---|
|
Disease severity as measured by Global Initiative for Asthma (GINA) Stage for asthma.
Time Frame: 12 months
|
12 months
|
|
Disease severity as measured by Global Obstructive Lung Disease (GOLD) Stage for COPD.
Time Frame: 12 months
|
12 months
|
|
Disease control as measured by the Asthma Control Questionnaire (ACQ) score for asthma patients.
Time Frame: 12 months
|
12 months
|
|
Disease control as measured by the COPD Assessment Test (CAT) score for COPD patients.
Time Frame: 12 months
|
12 months
|
|
Quality of life as measured by the Asthma Quality of Life Questionnaire (AQLQ) score in asthma patients
Time Frame: 12 months
|
12 months
|
|
Lung function as recorded by the forced expiratory volume in 1 second (FEV1)
Time Frame: 12 months
|
12 months
|
|
Eosinophilic Lung Inflammation as recorded by the exhaled Nitric Oxide level (FeNO).
Time Frame: 12 months
|
12 months
|
|
Usability of inflammacheck device as measured by how frequently patients are unable to perform EBC collection by using the 'Inflammacheck' device.
Time Frame: 6 months
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6 months
|
|
Acceptability of the inflammacheck device as measured by a questionnaire of the participants and healthcare professionals experience of 'Inflammacheck'.
Time Frame: 6 months
|
6 months
|
Collaborators and Investigators
Sponsor
Sponsor
Collaborators
Collaborators
Investigators
Investigators
- Principal Investigator: Prof Anoop J Chauhan, Portsmouth Hospitals NHS Trust
Study record dates
Study Major Dates
Study Start (Actual)
Study Start
Primary Completion (Actual)
Primary Completion
Study Completion (Actual)
Study Completion
Study Registration Dates
First Submitted
First Submitted
First Submitted That Met QC Criteria
First Submitted That Met QC Criteria
First Posted (Actual)
First Posted
Study Record Updates
Last Update Posted (Actual)
Last Update Posted
Last Update Submitted That Met QC Criteria
Last Update Submitted That Met QC Criteria
Last Verified
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
Other Study ID Numbers
- PHT/2016/93
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