RecruitingNot Applicable

Development of Non-Invasive Prenatal Diagnosis for Single Gene Disorders

France550 participantsStarted 2024-10-23

Plain-language summary

Cell-free fetal DNA (cffDNA) is present in the maternal blood from the early first trimester of gestation and makes up 5%-20% of the total circulating cell-free DNA (cfDNA) in maternal plasma. Its presence in maternal plasma has allowed development of noninvasive prenatal diagnosis for single-gene disorders (SGD-NIPD). This can be performed from 9 weeks of amenorrhea and offers an early, safe and accurate definitive diagnosis without the miscarriage risk associated with invasive procedures. One of the major difficulties is distinguishing fetal genotype in the high background of maternal cfDNA, which leads to several technical and analytical challenges. Besides, unlike noninvasive prenatal testing for aneuploidy, NIPD for monogenic diseases represent a smaller market opportunity, and many cases must be provided on a bespoke, patient- or disease-specific basis. As a result, implementation of SGD-NIPD remained sparse, with most testing being delivered in a research setting. The present project aims to take advantage of the unique French collaborative network to make SGD-NIPD possible for theoretically any monogenic disorder and any family.

Who can participate

Age range

18 Years

Sex

FEMALE

See this in plain English?

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

Inclusion Criteria: * pregnant woman with 9 weeks of amenorrhea or more * singleton pregnancy * undergoing invasive PND in a context of family history of SGD involving the following genes : HBB, CFTR, FMR1, SMN1, DMPK, DMD, NF1, HTT, F8, F9, GCK, L1CAM, PKHD1, or undergoing prenatal counselling in a context of maternal history of diabetes MODY-GCK * germinal pathogenic paternal and/or maternal mutations previously identified * age 18 years old or over * signing an informed consent Exclusion Criteria: * at risk of SGD involving a de novo pathogenic mutation in a previous child * woman under legal protection

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

% of affected/unaffected fetuses that were correctly classified as affected/unaffected

Timeframe: 1 day

% of inconclusive results

Timeframe: 1 day

Trial details

NCT IDNCT06147414

SponsorAssistance Publique - Hôpitaux de Paris

Sponsor typeOTHER

Study typeOBSERVATIONAL

Primary completion2027-05

Contact for this trial

Juliette NECTOUX, MD,PhD

01 58 41 11 86 juliette.nectoux@aphp.fr

View on ClinicalTrials.gov More Invasive PreNatal Diagnosis in a Context of Family History of Single-gene Disorders, Including trials