Investigating Periodontitis in Children with Down Syndrome

Study of Neutrophils During Gingival Inflammation in Children With Down Syndrome/Trisomy 21

Not applicable Interventional Assistance Publique - Hôpitaux de Paris · NCT05970965

This study is trying to see how gum disease affects children with Down syndrome by looking at their immune response and comparing it to children with similar developmental challenges.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment18 (estimated)
Ages3 Years to 12 Years
SexAll
SponsorAssistance Publique - Hôpitaux de Paris Academic / other
Locations1 site (Ivry-sur-Seine)
Trial IDNCT05970965 on ClinicalTrials.gov

What this trial studies

This study aims to explore the relationship between periodontitis and immune response in children with Down syndrome (trisomy 21). It will collect saliva and serum samples from participants to analyze different neutrophil subtypes associated with gingival inflammation. The study will involve two groups: children with Down syndrome and a control group of children with psychomotor retardation. The primary focus is on understanding how specific neutrophil phenotypes may contribute to the progression of periodontitis in these patients.

Who should consider this trial

Good fit: Ideal candidates are children aged 3 to 12 with Down syndrome and varying periodontal health statuses.

Not a fit: Patients with conditions unrelated to Down syndrome or those outside the specified age range may not benefit from this study.

Why it matters

Potential benefit: If successful, this research could lead to better understanding and management of periodontal disease in children with Down syndrome.

How similar studies have performed: While studies have explored periodontitis in various populations, this specific focus on Down syndrome and neutrophil phenotypes is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

Common to all groups:

* Age: 3 to 12
* Patient affiliated to a social security program, beneficiary not covered by the AME.
* Legal representatives who speak and understand French well enough to be able to read and understand the study information.
* Legal representatives giving written consent for their child's participation in the study.

Specific:

Case Group:

* Trisomy 21 patient with gingival inflammation (subgroup 1)
* Trisomy 21 patient with healthy gingiva on intact periodontium with no history of periodontitis (subgroup 2)

Control Group: child meeting one of these criteria:

* Patient with psychomotor retardation with no known repercussions on the orofacial sphere or immunity, presenting gingival inflammation (subgroup 1)
* Patients with psychomotor retardation and no known repercussions on orofacial health or immunity, presenting gingival health on intact periodontium with no history of gingival inflammation (subgroup 2).
* Patients with no known general pathology and gingival inflammation (subgroup 3)
* Patients with no known general pathology and healthy gingiva on intact periodontium with no history of gingival inflammation (subgroup 4)

Exclusion Criteria:

Common to all groups:

* Patient having received antibiotic prophylaxis, antibiotic therapy or anti-inflammatory treatment in the 3 months prior to inclusion
* Patient included in another interventional research protocol or in a period of exclusion.
* Patient on AME
* Patients with a contraindication to the use of MEOPA:

  * Patients requiring pure oxygen ventilation
  * Intracranial hypertension
  * Unevaluated head trauma
  * New-onset, unexplained neurological abnormalities
  * Pneumothorax
  * Emphysema bubbles
  * Gas embolism
  * Diving accident
  * Abdominal gas distension, occlusion
  * Patient recently treated with ophthalmic gas (SF6, C3F8, C2F6)
  * Known, unsubstituted vitamin B12 deficiency

Specific to Trisomy 21 group:

\- Patient with no genetic diagnosis

Where this trial is running

Ivry-sur-Seine

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions PeriodontitisTrisomy 21Down syndromepsychomotor retardationgingivitisperiodontitisneutrophilsbiological collection
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.