Non-syndromic Inherited Anomalies of Mineralized Tooth Tissues: a Whole Exome Study to Identify New Pathogenic Variants (EXODENT)

Assistance Publique - Hôpitaux de Paris

Status: Unknown

Conditions: Dentin Anomalies; Dentinogenesis Imperfecta; Amelogenesis Imperfecta

Treatments: Biological: Blood sample

Study type: Interventional

Funder types: Other

Identifiers

NCT03810859

2018-A01250-55 (Other Identifier)

K180404J

Details and patient eligibility

About

ExoDent specifically aims to discover new genes and new mutations causing isolated amelogenesis imperfecta (AI) and dentinogenesis imperfecta (DI) and other dentin anomalies. The key point for clinicians is to distinguish between non syndromic and syndromic disorders in order to improve patients guidance and counseling. To do so, two targeted NGS panel have been designed, one searching for isolated AI and the other for DI. After 18 months, some families remain without any positive results. ExoDent project proposes those negative patients a Whole Exome Sequencing (WES) approach to deeper explore their genetic background.

Enrollment: 14 patients

Sex: All

Ages: 4+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• clinical diagnosis of amelogenesis imperfecta or dentinogenesis imerfecta or other dentin anomaly with no other signs or symptoms ( familial or isolated)
• negative results after targeted NGS strategy for molecular diagnosis

Exclusion criteria

• absence of positive clinical diagnosis
• Diagnosis of syndromic disease

Trial design

Primary purpose: Basic Science

Allocation: N/A

Interventional model: Single Group Assignment

Masking: None (Open label)

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14 participants in 1 patient group

All patients

Experimental group

Description:

Blood sample

Treatment:

Biological: Blood sample