This Study Aims to Compare Asthma Control in Children Monitored With FeNO Against a Historical Cohort Without FeNO. Secondary Objectives Include Evaluating Associations Between FeNO Levels, ACT/C-ACT Scores, Eosinophil Counts, FEV1%, ICS Adherence, and Exacerbation Frequency.

August 23, 2026 updated by: King Faisal Specialist Hospital & Research Center

FeNO Fractional Exhaled Nitric Oxide Test as Significant Tool in Enhancing Asthma Treatment Management Among Children

This study aims to evaluate whether incorporating FeNO monitoring into routine pediatric asthma care improves clinical outcomes relative to a historical cohort managed without FeNO

Study Overview

Status

Recruiting

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Estimated)

80

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Study Locations

  • Saudi Arabia
    • Mecca Region
      • Jeddah, Mecca Region, Saudi Arabia
        • Active, not recruiting
        • King Faisal Sepiclaized Hospital and Research Center
    • Western Region
      • Jeddah, Western Region, Saudi Arabia, 21499
        • Recruiting
        • king Faisal specialized hospital and research center
        • Contact:
        • Contact:
        • Principal Investigator:
          • Nariman Alrabie

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

  • Child

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Children aged 6 to 14 years with a physician-diagnosed asthma.

    • Minimum of three months' follow-up at the pediatric respiratory clinic.
    • Availability of Asthma Control Test (ACT/C-ACT) scores and clinical data

Exclusion Criteria:

  • Presence of other chronic pulmonary diseases (e.g., cystic fibrosis).

    • Recent respiratory infections within four weeks prior to enrollment.
    • Current treatment with biologic agents affecting asthma inflammation.

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

  • Primary Purpose: Health Services Research
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Other: Feno based

Registration: Eligible participants will be registered consecutively during clinic visits after obtaining informed consent (and assent where applicable).

  • Randomization: As this is an observational study comparing prospective data with historical controls, no randomization will be performed. 2.4 Data Gathering Methods
  • Prospective FeNO Group: Monthly data collection over 3 months including ACT/ C-ACT questionnaires, FeNO measurements using portable point-of-care devices, spirometry (FEV1%), and peripheral blood eosinophil counts.
  • Historical Control Group: Extraction of relevant clinical data (ACT/C-ACT scores, spirometry, eosinophil counts, ICS adherence, and exacerbation records) from electronic medical records covering a comparable 3-month timeframe. 2.5 Procedures and Central Laboratories
  • FeNO measurements will be conducted using a validated, portable FeNO device standardized across study sites.
  • Spirometry will be performed according to American Thoracic Society guidelines
Diagnostic test: FENO

Registration: Eligible participants will be registered consecutively during clinic visits after obtaining informed consent (and assent where applicable).

  • Randomization: As this is an observational study comparing prospective data with historical controls, no randomization will be performed. 2.4 Data Gathering Methods
  • Prospective FeNO Group: Monthly data collection over 3 months including ACT/ C-ACT questionnaires, FeNO measurements using portable point-of-care devices, spirometry (FEV1%), and peripheral blood eosinophil counts.
  • Historical Control Group: Extraction of relevant clinical data (ACT/C-ACT scores, spirometry, eosinophil counts, ICS adherence, and exacerbation records) from electronic medical records covering a comparable 3-month timeframe. 2.5 Procedures and Central Laboratories
  • FeNO measurements will be conducted using a validated, portable FeNO device standardized across study sites.
  • Spirometry will be performed according to American Thoracic Society guidelines
Active Comparator: historical based

Registration: Eligible participants will be registered consecutively during clinic visits after obtaining informed consent (and assent where applicable).

  • Randomization: As this is an observational study comparing prospective data with historical controls, no randomization will be performed. 2.4 Data Gathering Methods
  • Prospective FeNO Group: Monthly data collection over 3 months including ACT/ C-ACT questionnaires, FeNO measurements using portable point-of-care devices, spirometry (FEV1%), and peripheral blood eosinophil counts.
  • Historical Control Group: Extraction of relevant clinical data (ACT/C-ACT scores, spirometry, eosinophil counts, ICS adherence, and exacerbation records) from electronic medical records covering a comparable 3-month timeframe. 2.5 Procedures and Central Laboratories
  • FeNO measurements will be conducted using a validated, portable FeNO device standardized across study sites.
  • Spirometry will be performed according to American Thoracic Society guidelines
Diagnostic test: PFT

Registration: Eligible participants will be registered consecutively during clinic visits after obtaining informed consent (and assent where applicable).

  • Randomization: As this is an observational study comparing prospective data with historical controls, no randomization will be performed. 2.4 Data Gathering Methods
  • Prospective FeNO Group: Monthly data collection over 3 months including ACT/ C-ACT questionnaires, FeNO measurements using portable point-of-care devices, spirometry (FEV1%), and peripheral blood eosinophil counts.
  • Historical Control Group: Extraction of relevant clinical data (ACT/C-ACT scores, spirometry, eosinophil counts, ICS adherence, and exacerbation records) from electronic medical records covering a comparable 3-month timeframe. 2.5 Procedures and Central Laboratories
  • FeNO measurements will be conducted using a validated, portable FeNO device standardized across study sites.
  • Spirometry will be performed according to American Thoracic Society guidelines

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
correlations
Time Frame: 6 MONTH
Establish correlations between FeNO levels and established asthma control markers such as ACT scores, eosinophils, and FEV1%.
6 MONTH
Establish correlations between FeNO levels and established asthma control markers such as ACT scores, eosinophils, and FEV1%.
Time Frame: 12 MONTH
12 MONTH

Collaborators and Investigators

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

Sponsor

King Faisal Specialist Hospital & Research Center

Investigators

  • Principal Investigator: Nariman Alrabie, king Faisal specialized hospital and research center

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

  • 1. Al Frayh AR, Shakoor Z, Gad El Rab MO, Hasnain SM. Increased prevalence of asthma in Saudi Arabia. Ann Allergy Asthma Immunol. 2001;86(3):292-6. 2.Al Ghobain MO, Algazlan SS, Oreibi TM. Asthma prevalence among adults in Saudi Arabia. Saudi Med J. 2018;39(2):179-84. 3.Verini M, Consilvio NP, Di Pillo S, Cingolani A, Spagnuolo C, Rapino D, et al. FeNO as a Marker of Airways Inflammation: The Possible Implications in Childhood Asthma Management. Journal of Allergy. 2010;2010:1-7. 4.Schoos A-MM, Christiansen CF, Stokholm J, Bønnelykke K, Bisgaard H, Chawes BL. FeNO and exercise testing in children at risk of asthma. The Journal of Allergy and Clinical Immunology: In Practice. 2018;6(3):855-62. e2. 5.Beerthuizen T, Voorend-van Bergen S, van den Hout WB, Vaessen-Verberne AA, Brackel HJ, Landstra AM, et al. Cost-effectiveness of FENO-based and web-based monitoring in paediatric asthma management: a randomised controlled trial. Thorax. 2016;71(7):607-13. 6.Nguyen-Thi-Bich H, Duong-Thi-Ly H, Thom VT, Pham-Thi-Hong N, Dinh LD, Le-Thi-Minh H, et al. Study of the correlations between fractional exhaled nitric oxide in exhaled breath and atopic status, blood eosinophils, FCER2 mutation, and asthma control in Vietnamese children. Journal of Asthma and Allergy. 2016:163-70. 7.Czubaj-Kowal M, Nowicki GJ, Kurzawa R, Polak M, Ślusarska B. Factors Influencing the Concentration of Exhaled Nitric Oxide (FeNO) in School Children Aged 8-9-Years-Old in Krakow, with High FeNO Values≥ 20 ppb. Medicina. 2022;58(2):146.

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 12, 2025

Primary Completion (Estimated)

November 12, 2026

Study Completion (Estimated)

November 12, 2026

Study Registration Dates

First Submitted

August 23, 2026

First Submitted That Met QC Criteria

August 23, 2026

First Posted (Actual)

August 26, 2026

Study Record Updates

Last Update Posted (Actual)

August 26, 2026

Last Update Submitted That Met QC Criteria

August 23, 2026

Last Verified

August 1, 2026

More Information

Terms related to this study

Other Study ID Numbers

  • 2251240

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

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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