Single Cell Sequencing of Tonsillar Tissue in Children With OSA
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: Tonsillectomy.
- Who it may be relevant to
- Registry conditions: Obstructive Sleep Apnea of Child. Basic parameters: 6 years — 11 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- Hong Kong
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
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Official title
Single Cell Sequencing to Examine the Pathogenesis of Adenotonsillar Hypertrophy in Children With Obstructive Sleep Apnoea
Overview
Obstructive sleep apnoea (OSA) in children is a prevalent sleep disorder, and is characterised by repetitive complete or partial upper airway obstruction during sleep. It is an important disease as it is associated with a large spectrum of end-organ morbidities. Adenotonsillar hypertrophy is the commonest cause of OSA in children, however, the cause of the lymphoid tissue hypertrophy in some individuals but not the others remains unknown. To address the cellular heterogeneity and immune cell involvement in adenotonsillar hypertrophy, here, we propose to employ single-cell sequencing analysis to identify the cell-specific expression patterns associated with the disease, which will enhance our understanding of the pathogenesis of tonsillar hypertrophy in children with OSA and may provide directions for development of novel therapy.
Interventions
- Procedure Tonsillectomy
Subjects who are diagnosed to have OSA with adeontonsillar enlargement will undergo adenotonsillectomy if it is clinically indicated. Adenotonsillar tissue will be obtained for single cell sequencing. Controls will be non-OSA subjects (with PSG OAHI \<1/hour) who undergo adenotonsillectomy for other reasons such as recurrent tonsillitis.
Primary outcome measures
- Tonsil cell characteristics [Time frame: Through study completion, an average of 2 years]
Eligibility criteria
Inclusion criteria
Case: Chinese children aged 6-11 years old with habitual snoring (≥3 nights per week) and polysomnography (PSG) confirmed OSA (obstructive apnoea hypopnoea index (OAHI) of ≥1/hour), with adenotonsillar hypertrophy and clinical indications for adenotonsillectomy will be recruited as cases.
Control: Non-OSA subjects (with PSG OAHI <1/hour) who undergo adenotonsillectomy for other reasons such as recurrent tonsillitis.
Exclusion criteria
Previous upper airway surgery, genetic or syndromal disease, congenital or acquired neuromuscular disease, congenital or acquired immunodeficiency, known metabolic syndrome, craniofacial abnormalities.
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: No
Study design
- Observational model
- Case-control
Study locations
Hong Kong · 1 center
- Prince of Wales Hospital — Hong Kong
Identifiers
NCT: NCT05115968 · SCSAT_protocol_version 1.0