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CompletedNCT03025061CERSUpdated Sep 5, 2018

Within-day and Between-day Repeatability of the Breath Pattern in Healthy Children and in Children With Asthma

An observational study in Asthma and Healthy, sponsored by Istituto per la Ricerca e l'Innovazione Biomedica. Completed at 1 site in Italy. Open to participants aged 6 Years to 11 Years. Per ClinicalTrials.gov, last updated 2018-09-05.

Sponsored by Istituto per la Ricerca e l'Innovazione Biomedica · Observational

Study type
Observational
Model
Other
Time perspective
Prospective
Enrollment
45
Ages
6 Years to 11 Years
Sex
All
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Study summary

"Within-day and Between-day Repeatability of the Breath Pattern in Healthy Children and in Children With Moderate Asthma" is an observational prospective study in outpatient clinic of Pediatric Allergology \& Pulmonology (PAP) within the Institute of Biomedicine and Molecular Immunology (IBIM) of the National Research Council (CNR) of Palermo (IBIM CNR), Italy.

The electronic nose (E-nose) has been proposed as a novel, non-invasive tool to evaluate the level of airway inflammation for different respiratory diseases, especially in children. To date, there are no data on the within-day and the between-day repeatability of the breath pattern in healthy children and in children with moderate asthma.

The breath pattern will be analyzed by collecting, for each child, three samples of the breath through the E-nose. Within-day repeatability will be assessed using two consecutive measurements (the second one after 30 minutes). Between-day repeatability will be assessed using a third measurement repeated after 7 days.

The study is expected to provide information about the accuracy of E-nose measurements for a child population.

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Conditions studied

  • Asthma
  • Healthy

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Keywords

  • Breath pattern
  • Children
  • Repeatability
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In context

Asthma

3,920 studies on the registry are indexed under Asthma; 506 are open to participants now.

This study's enrollment of 45 is below the median of 150 across 970 observational studies indexed under Asthma.

Browse Asthma studies →

Lead sponsor

Istituto per la Ricerca e l'Innovazione Biomedica is the lead sponsor of 46 studies on the registry; 29 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
6 Years to 11 Years
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

A study population of 15 asthmatic children (moderate asthma) attending the outpatient clinic of Pediatric Allergology \& Pulmonology (PAP) within the Institute of Biomedicine and Molecular Immunology (IBIM) of the National Research Council (CNR) of Palermo (IBIM CNR).

A control group of healthy children (n=30), recruited from the primary schools involved in the municipal project "educational pathways" (Palermo, Italy) to which the PAP group partecipates.

Eligibility criteria

The inclusion criteria for asthmatic children are:

  1. Moderate asthma (GINA 2015);
  2. Age 6-11 years;
  3. No upper airway respiratory infections or exacerbations in the last 4 weeks;
  4. Steroid-naive asthma;
  5. Positive bronchodilator response;
  6. Non smoker.

The inclusion criteria for healthy children are:

  1. Age 6-11 years;
  2. No upper airway respiratory infections in the last 4 weeks;
  3. Non smoker;
  4. No history of asthma and respiratory diseases during the life;
  5. Negative bronchodilator response.

The exclusion criteria are:

  1. Symptoms of acute respiratory infection;
  2. Immunological and metabolic systemic disease;
  3. Major malformations of the upper airways;
  4. Active smoker.
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Study design

Observational model
Other
Time perspective
Prospective
Enrollment
45 participants (actual)
Patient registry
No

Groups and cohorts

  • 15 children with moderate asthma

    Assessment of E-nose measurements: three E-nose measurements on 15 children with moderate asthma (of both sex and 6-11 years old): first measurement, second one after 30 minutes, third one after 7 days. These children attend the outpatient clinic of Pediatric Allergology \& Pulmonology (PAP) within the Institute of Biomedicine and Molecular Immunology (IBIM) of the National Research Council (CNR) of Palermo (IBIM CNR).

    Other: Assessment of E-nose measurements

  • 30 healthy children

    Assessment of E-nose measurements: three E-nose measurements on 30 healthy children (of both sex and 6-11 years old): first measurement, second one after 30 minutes, third one after 7 days. These children attend the primary schools involved in the municipal project "Educational Pathways" (Palermo).

    Other: Assessment of E-nose measurements

Interventions

  • OtherAssessment of E-nose measurements

    Breath sampling through E-nose pneumopipe

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What researchers measure

Primary outcomes

  1. Electronic nose measurements

    Several volatile organic compounds, including isoprene, 1,2-pentadiene, acetone, ethanol, pentane and ethane, identified in exhaled breath.

    Time frame: 1 week

Secondary outcomes

  1. Fraction of Exhaled Nitric Oxide (FeNO)

    Time frame: 1 week

  2. Pulmonary function (FEV1, FVC, etc.)

    Time frame: 1 week

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Study locations

1 site
  • Institute of Biomedicine and Molecular Immunology (IBIM), National Research Council
    Palermo, Sicily 90146, Italy
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References and documents

Publications

  • Fasola S, Ferrante G, Sabatini A, Santonico M, Zompanti A, Grasso S, Antonelli Incalzi R, La Grutta S. Repeatability of exhaled breath fingerprint collected by a modern sampling system in asthmatic and healthy children. J Breath Res. 2019 May 1;13(3):036007. doi: 10.1088/1752-7163/ab1765. PubMed 30965288 ↗

Individual participant data

Plan to share: No

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 5, 2018, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT03025061
Lead sponsor
Istituto per la Ricerca e l'Innovazione Biomedica
Collaborators
Campus Bio-Medico University
Responsible party
Stefania La Grutta, MD (MD. Senior Researcher. Coordinator of Pediatric Allergy and Asthma Research Group. Institute of Biomedicine and Molecular Immunology, IBIM, National Research Council of Palermo, Italy., Istituto per la Ricerca e l'Innovazione Biomedica) — Principal investigator
First posted
Jan 19, 2017
Start date
Feb 24, 2017
Primary completion
Aug 3, 2018
Completion
Aug 3, 2018
Last update
Sep 5, 2018

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Sep 2018. You cannot join it, but the record below documents what was studied.

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