Mucosal Inflammation in Children With OSA

Recruiting

• Conditions: Obstructive Sleep Apnea

• Registration Number: NCT06452979
• Lead Sponsor: Chinese University of Hong Kong

Brief Summary

Objectives: Variability of clinical phenotypes in childhood obstructive sleep apnoea (OSA) has prompted research for biomarkers to identify patients at risk of developing OSA-related complications. Upper airway inflammation is documented in children with OSA. Whether it is related to end-organ morbidities and systemic inflammation is under-explored. The primary objectives of our study are 1)To evaluate inflammatory biomarkers with the use of nasal epithelial lining fluid (NELF) collected by nasal strips as a representation of upper airway inflammation in children with OSA compared to non-OSA controls; 2) To evaluate the associations between NELF biomarkers with ambulatory blood pressure (ABP) outcomes in children with OSA.

Hypothesis to be tested: Inflammatory biomarkers in NELF in children with OSA are altered when compared with non-OSA controls and correlated with ABP outcomes.

Design and subjects: A prospective case-control study. Non-obese Chinese children aged 6-11 years old with habitual snoring (≥3 nights per week) and polysomnography (PSG) confirmed OSA (OAHI of ≥1/hour) will be recruited as cases. Non-OSA children with OAHI \< 1 event/h will be recruited as controls. All subjects will undergo evaluation including questionnaires, anthropometric measurements, PSG, 24-hour ABP measurement, blood and NELF sampling.

Primary outcome measure: Profile of inflammatory biomarkers in the NELF. Analysis: Correlations between NELF inflammatory biomarkers with polysomnographic and ABP measurements will be evaluated by regression analysis.

Expected results: This study will provide novel and important information regarding upper airway inflammatory biomarkers in children with OSA and their relationship with blood pressure outcomes.

Detailed Description

Not available

Study Timeline

• Study Start: 2023-01-01
• Study First Submitted: 2023-11-01
• Status Verified: 2024-06
• Study First Submitted QC: 2024-06-06
• Last Update Submitted: 2024-06-06
• Study First Posted: 2024-06-11
• Last Update Posted: 2024-06-11
• Primary Completion: 2025-12-31
• Study Completion: 2025-12-31

Recruitment & Eligibility

• Status: RECRUITING
• Sex: All
• Target Recruitment: 110

Inclusion Criteria

• Children aged 6-11 years old

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Exclusion Criteria

• Previous upper airway surgery, genetic or syndromal disease, congenital or acquired neuromuscular disease, suspected or confirmed congenital or acquired immunodeficiency, obesity (BMI z-score ≥1.645), known metabolic syndrome, craniofacial abnormalities, structural or congenital heart disease, use of medications or therapy that could affect immunity such as systemic corticosteroids, chemotherapy, radiation therapy, intravenous immunoglobulins.

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Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Inflammatory profile in the nasal fluid	3 years	Profile of inflammatory biomarkers in the nasal epithelial lining fluid: cytokines profiles

Secondary Outcome Measures

Name	Time	Method
Inflammatory profile in the peripheral blood	3 years	Systemic inflammatory biomarkers collected from peripheral blood: cytokines profiles

Trial Locations

Locations (1)

Prince of Wales Hospital; 🇭🇰 Hong Kong, Hong Kong