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Taking people in FranceNo phase

Obstructive Sleep Apnea Hypopnea Syndrome (OSAHS) and Transverse Orthodontic Deficiency in Children

Key facts

Who runs it
Fondation Hôpital Saint-Joseph
Where
Rouen, FranceSee the site
Trial code
Status
Recruiting
People taking part
102 people, planned
Started
6 Nov 2025
Planned end
30 Sept 2026
Type of study
Interventional, 2 groups
Treatments tested
  • over nigtht ventilatory polysomnograph test
Record updated
30 March 2026

Who can take part

Age
6 years to 16 years
Sex
Women and men
Healthy volunteers
Cannot take part

The registry criteria, word for word

Show all 8 criteriaShow less

Who can take part

  • Patient aged between 6 and 16 years
  • Patients with a transverse orthodontic deficiency (group "CAS")
  • Patients with another type of orthodontic deficiency (group "CONTROL") such as tooth rotation, crowding, mild Angle Class II or Class III dental occlusion
  • Patient who has given free, informed oral consent
  • Patient whose legal representatives have given their free written consent
  • Patient affiliated with a health insurance scheme

Who cannot take part

  • Patients refusing to participate in the study
  • Patients whose legal representatives refuse to participate in the study

Check if you might fit

Answer for yourself. This is not a decision: only the study team can say whether you can take part.

  • Are you between 6 and 16 years old?

Where in France

  • Service d'orthopédie dento-cranio-maxillo facialeRouen, FranceContact: Perrine KRUK, MDTaking people

About the trial

What the trial wants to find out

OSAHS (Obstructive Sleep Apnea Hypopnea Syndrome) in children is a frequent respiratory disorder, whose prevalence is estimated at between 1.2 and 5.7%, and which, if left untreated, can cause severe medical complications. This prevalence tends to be underestimated. Diagnosis is made following a clinical examination noting the presence of characteristic clinical and polysomnographic criteria. Multidisciplinary management has been widely described in the literature, and various therapeutic options have been indicated. Rapid maxillary expansion has proved highly effective in the treatment of this condition. This syndrome is a real public health problem and must be diagnosed as early as possible. Through our research, we would like to study whether there is a causal link between an orthodontic problem of the transverse direction and the presence of SAHOS in children. In other words, we would like to assess whether children who clinically present an orthodontic deficiency of their transverse dimension are more likely to develop SAHOS than children without this deficit. If this proves to be true, then a new clinical sign could enable certain healthcare professionals to detect this syndrome early, and be able to refer patients to physicians as soon as possible.

The 2 groups in the trial

  • transverse deficiency maxillaTreatment being tested

    patient with transverse deficiency maxilla

    Treatment: over nigtht ventilatory polysomnograph test

  • other type of maxilla deficiencyOther group

    patient with other type maxilla deficiency

    Treatment: over nigtht ventilatory polysomnograph test

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?

Contact the study team: see the registry record → Contacts and Locations

Print a page for my doctor

Data and sources

Registry record
Listed on ClinicalTrials.gov.
Fit questions
Built from NCT07086612, who can take part
Record updated
30 March 2026