Active — Not RecruitingNot Applicable

Genetics of Ventriculo-arterial Discordance

France600 participantsStarted 2022-09-07

Plain-language summary

Number of centres planned : 16 centres in France Type of study / Study design : Research Involving the Human Person category 2. Multicentric. Prospective Planning of the study : Total duration: 57,5 months. Recruitment period: 33.5 months. Follow-up time per patients : 2 years Expected number of cases : The study will involve a maximum of 900 individuals, from 16 centers in France300 family trios (consisting of 150 index cases and their 2 parents, healthy volunteers, N= 450 individuals) \- In the event of unavailability, refusal, non-compliance with an inclusion or exclusion criterion concerning one of the biological parents, only the index case (patient) will be included in the study without his or her parents. The 300 index cases with ventriculo-arterial discordance will be divided into two groups: 100 double discordance cases and 200 large-vessel transpositions. These group inclusion targets are theoretical. If the proportion of patients available for inclusion turns out to be higher than expected for one of the groups, the targets may be adjusted, while maintaining a maximum of 300 cases included (corresponding to 900 subjects if all trios are complete). Patients and their parents will be informed of the study by their referring cardiologist, and their written consent will be obtained. Translated with DeepL.com (free version) Treatment, procedure, combination of procedures under consideration : * Blood samples for genetic analyses collected at the inclusion visit for patients and parents in case of trio families Schedule of different visits and examinations : Inclusion visit: * Collection of demographic, clinical data from the index case and parents * DNA sampling for genetic research (biocollection) of the index case or family trio * Completion of the quality of life questionnaire Annual visit with a 2 years follow-up: * Retrieval of data from the index case * Completion of the quality of life questionnaire

Who can participate

Age range1 Minute – 100 Years

SexALL

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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * Patients with transposition of the great arteries or transposition congenitally corrected of the great arteries with healthy parents and no family history of congenital heart disease (familial trio) * Or patients with transposition of the great arteries or transposition congenitally corrected of the great arteries with or without a history of congenital heart disease (familial form or sporadic case) * Affiliated or beneficiaries of a social security scheme or similar * After obtaining oral consent from patients and/or parents if applicable Parents (for family trios) : \- Biological parents of the child included in the PRECIPED study Exclusion Criteria: * Patients with transposition of the great arteries or transposition congenitally corrected of the great arteries with hypoplastic ventricle or atrioventricular and/or ventriculoarterial valve atresia * Patient with an identified malformation syndrome * Patients under guardianship/curatorship * Patients with State Medical Aid * Refusal of consent by the patient and/or one of the two parents

What they're measuring

Identification new genes/variants involved in congenital heart disease with transposition congenitally corrected of the great arteries, based on whole genome sequencing of familial trios.

Timeframe: 24 months

Trial details

NCT IDNCT05330338

SponsorNantes University Hospital

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2025-06-24