EXhaled Hydrogen Peroxide As a Marker of Lung diseasE (EXHALE) Pilot Study.

NCT ID: NCT03055923

Last Updated: 2023-04-07

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

149 participants

Study Classification

OBSERVATIONAL

Study Start Date

2016-11-14

Study Completion Date

2018-04-10

Brief Summary

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This Pilot study evaluates the use of a new device called Inflammacheck and whether it can consistently measure hydrogen peroxide levels in exhaled breath condensate. It will also assess whether exhaled breath condensate hydrogen peroxide levels as measured by Inflammacheck can differentiate people with asthma and COPD from healthy individuals.

Detailed Description

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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.

Conditions

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Asthma Chronic Obstructive Pulmonary Disease

Study Design

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Observational Model Type

CASE_CONTROL

Study Time Perspective

CROSS_SECTIONAL

Study Groups

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Asthma Patients

30 people who suffer from a confirmed diagnosis of asthma

The Inflammacheck Device

Intervention Type DEVICE

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

The Inflammacheck Device

Intervention Type DEVICE

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

The Inflammacheck Device

Intervention Type DEVICE

A new hand-held, Non-invasive breathing test, that only requires tidal breathing.

Interventions

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The Inflammacheck Device

A new hand-held, Non-invasive breathing test, that only requires tidal breathing.

Intervention Type DEVICE

Eligibility Criteria

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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.
Minimum Eligible Age

16 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Asthma UK

OTHER

Sponsor Role collaborator

Portsmouth Hospitals NHS Trust

OTHER_GOV

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Prof Anoop J Chauhan

Role: PRINCIPAL_INVESTIGATOR

Portsmouth Hospitals NHS Trust

Locations

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Portsmouth Hospitals NHS Trust

Portsmouth, , United Kingdom

Site Status

Countries

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United Kingdom

Other Identifiers

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PHT/2016/93

Identifier Type: -

Identifier Source: org_study_id

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