Functional Study to Indentify Genetic Etiology of Rare Diseases - ORIGIN

Not Applicable

Recruiting

• Conditions: Genetic Disease; Rare Diseases
• Interventions: Procedure: Skin biopsy, blood sample, urine sample

• Registration Number: NCT05499091
• Lead Sponsor: University Hospital, Angers

Brief Summary

Next generation sequencing (NGS) allows some better diagnostic results, particularly, in the rare diseases field. At a twenty five percent rate, those exams highlight some variants which are not yet described in human pathology. The relationship between a variant found inside a candidate gene and a pathology, is able to be confirmed by functional studies at a protein level. This study aims to build a biological collection to feed further functional studies to confirm the relationship between NGS identified variants, and the clinical signs and symptoms.

Detailed Description

Not available

Study Timeline

• Study First Submitted: 2022-07-13
• Study First Submitted QC: 2022-08-10
• Study First Posted: 2022-08-12
• Study Start: 2022-10-10
• Status Verified: 2024-03
• Last Update Submitted: 2024-03-18
• Last Update Posted: 2024-03-20
• Primary Completion: 2042-10-10
• Study Completion: 2045-10-10

Recruitment & Eligibility

• Status: RECRUITING
• Sex: All
• Target Recruitment: 1200

Inclusion Criteria

Patient :

• Child or adult affected by a rare disease whose molecular functions are not known, or whose pathophysiologic mechanism are not fully understood.
• Patient included inside the BaMaRa (French rare disease national data bank) database dedicated to the rare diseases.
• Patient Affiliated to the French social security system.
• Patient consent form or legal representative consent form obtained.

Patient's parent :

• Parent of a patient affected by a rare disease whose molecular functions are not known, or whose pathophysiologic mechanism are not fully understood.
• Parent included in the BaMaRa database.
• Parent affiliated to the French social security system.
• Parent consent form obtained for himself/herself.

Patient's brother or sister :

• Brother or sister of a patient (underage or adult) affected by a rare disease whose molecular functions are not known, or whose pathophysiologic mechanism are not fully understood.
• Brother or sister included in the BaMaRa database.
• Brother or sister affiliated to the French social security system.
• Brother or sister consent form obtained for themselves or from their legal representative.

Exclusion Criteria

• Poor understanding of the French language
• Legal of administrative liberty deprivation
• Psychiatric force care

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SINGLE_GROUP

Arm && Interventions

Group	Intervention	Description
Study Arm	Skin biopsy, blood sample, urine sample	Specific interventions: Blood samples, skin biopsy, urine collection or operational waste qualified as research sample.

Primary Outcome Measures

Name	Time	Method
Identification of at least 80 new genes implicated in rare diseases via high-throughput sequencing technics and through functional studies.	23 years	Candidate genes, suspected to be responsible for rare diseases will be identified before the inclusion, during standard medical care, by exome or genome sequencing.
Collecting biological samples to build up a biobank	23 years	After a candidat gene identification, patient will be proposed sampling (blood or urine) or if a skin biopsy, an amniotic fluid puncture or any surgery are done during standard care, the remaing tissue or fluid, or operative wastes will be eligible too, to be stored in the biobank.
Candidat gene validation through functional studies.	23 years	Biological samples from the biobank will be made available after the study, to some specialized research teams, in order to validate or overturn those previously gene candidates by the way of some biological technics.

Trial Locations

Locations (1)

Centre Hospitalo-Universitaire d'Angers; 🇫🇷 Angers, France