- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04406480
Realization of Sequencing of All Known Human Genes in Case of Detection of Cerebral, Renal or Ophthalmological Fetal Malformations During Pregnancy in Order to Make an Etiological Diagnosis and to Precise the Fetal Prognosis (PRENATEX)
Contribution of the Exome Sequencing in Antenatal Period Behind Ultrasound Features Suggestive of a Rare Genetic Disease
Congenital malformations concern 3% of pregnancies; most of them can be seen during pregnancy. For some malformations, an invasive sample (trophoblast biopsy or amniocentesis) is proposed to search a chromosomal abnormality by the technique of DNA chip. However, some strongly suggestive signs of a genetic (and not chromosomal) pathology have a very low diagnostic rate with this technique. In the absence of an etiological diagnosis, the prognosis for the unborn child is very difficult to assess, as we can't know if the fetal malformation is really isolated or associted to other unseen features as part of a syndromic condition.
For some malformations strongly suggestive of a genetic condition, we propose to realize an exome (i.e. all coding parts of the genome) sequencing of the trio (child and the 2 parents) with a delivery time compatible with the emergency situation of a pregnancy (6 weeks maximum). We will apply bioinformatics filters to analyse only genes known to be involved in the malformation present in the unborn child and thus avoid the identification of variants in unrelated genes. These lists of genes have been previously validated by the Rare Disease Health Sectors and the affiliated diagnostic laboratories. The selected malformations are: 1) anomalies of the central nervous system (microcephaly (<- 2DS) with anomalies of gyration, anomalies of the posterior fossa, anomalies of the midline except agenesis of the corpus callosum), 2) ophthalmological anomalies (microphthalmia, hyperplasia vitreous) and 3) renal abnormalities (large hyperechoic kidneys).
Study Overview
Status
Intervention / Treatment
Study Type
Enrollment (Anticipated)
Phase
- Not Applicable
Contacts and Locations
Study Contact
- Name: Elise SCHAEFER
- Phone Number: +33 3 88 12 81 20
- Email: elise.schaefer@chru-strasbourg.fr
Study Locations
-
-
-
Besançon, France, 25030
- Not yet recruiting
- CHU de Besancon
-
Contact:
- Lionel VAN MALDERGEM
- Phone Number: +33 3 81 21 81 87
- Email: lionel.van-maldergem@inserm.fr
-
Principal Investigator:
- Lionel VAN MALDERGEM
-
Sub-Investigator:
- Juliette PIARD
-
Sub-Investigator:
- Elise BOUCHER
-
Dijon, France, 21079
- Not yet recruiting
- CHU de Dijon
-
Contact:
- Christel THAUVIN
- Phone Number: +33 3 80 29 53 13
- Email: Christel.thauvin@chu-dijon.fr
-
Principal Investigator:
- Christel THAUVIN
-
Sub-Investigator:
- Laurence FAIVRE
-
Sub-Investigator:
- Arthur SORLIN
-
Sub-Investigator:
- Sébastien MOUTTON
-
Lyon, France
- Not yet recruiting
- Hospices Civils de Lyon
-
Contact:
- Audrey PUTOUX
- Phone Number: +33 4 27 85 50 83
- Email: Audrey.putoux@chu-lyon.fr
-
Principal Investigator:
- Audrey PUTOUX
-
Mulhouse, France, 68070
- Not yet recruiting
- Groupe Hospitalier Region Mulhouse Et Sud Alsace
-
Contact:
- Emmanuelle GINGLINGER
- Phone Number: +33 3 89 64 87 03
- Email: GINGLINGERE@ghrmsa.fr
-
Principal Investigator:
- Emmanuelle GINGLINGER
-
Sub-Investigator:
- Edgar MONTOYA RAMIREZ
-
Nancy, France, 54042
- Not yet recruiting
- Chu de Nancy
-
Contact:
- Laetitia LAMBERT
- Phone Number: +33 3 83 34 43 76
- Email: l.lambert@chru-nancy.fr
-
Principal Investigator:
- Laetitia LAMBERT
-
Sub-Investigator:
- Bruno LEHEUP
-
Paris, France, 75013
- Not yet recruiting
- Hopital de la Pitie Salpetriere
-
Contact:
- Delphine HERON
- Phone Number: +33 1 42 16 13 47
- Email: Delphine.heron@aphp.fr
-
Principal Investigator:
- Delphine HERON
-
Paris, France, 75012
- Not yet recruiting
- Hôpital d'Enfants Armand-Trousseau
-
Contact:
- Alexandra AFENJAR
- Phone Number: +33 1 44 73 61 86
- Email: Alexandra.afenjar@aphp.fr
-
Principal Investigator:
- Alexandra AFENJAR
-
Paris, France, 75743
- Not yet recruiting
- Hôpital Necker Enfants Malades
-
Contact:
- Tania ATTIE-BITACH
- Phone Number: +33 1 44 49 51 44
- Email: tania.attie@inserm.fr
-
Principal Investigator:
- Tania ATTIE-BITACH
-
Reims, France, 51092
- Not yet recruiting
- CHU de Reims
-
Contact:
- Martine DOCO-FENZY
- Phone Number: +33 3 26 78 90 03
- Email: mdocofenzy@chu-reims.fr
-
Principal Investigator:
- Martine DOCO-FENZY
-
Sub-Investigator:
- Céline POIRSIER
-
Rennes, France, 35203
- Not yet recruiting
- CHU de Rennes
-
Contact:
- Sylvie ODENT
- Phone Number: +33 2 99 26 67 44
- Email: Sylvie.odent@chu-rennes.fr
-
Principal Investigator:
- Sylvie ODENT
-
Strasbourg, France, 67098
- Recruiting
- Les Hôpitaux Universitaires de Strasbourg
-
Sub-Investigator:
- Vincent LAUGEL
-
Contact:
- Elise SCHAEFER
- Phone Number: +33 3 88 12 81 20
- Email: elise.schaefer@chru-strasbourg.fr
-
Principal Investigator:
- Elise SCHAEFER
-
Sub-Investigator:
- Hélène DOLLFUS
-
Sub-Investigator:
- Salima EL CHEHADEH
-
Sub-Investigator:
- Romain FAVRE
-
Toulouse, France, 31059
- Not yet recruiting
- CHU de Toulouse
-
Contact:
- Patrick CALVAS
- Phone Number: +33 5 61 77 90 51
- Email: calvas.p@chu-toulouse.fr
-
Principal Investigator:
- Patrick CALVAS
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Father and mother of an unborn child past the age of majority
- Consent dated and signed by the mother and by the father
- Father and mother able to understand the objectives and risks of the study
- For the mother, pregnancy in progress (between 12 and 34 weeks)
- For the mother, pregnancy with the presence of a malformation on ultrasound, confirmed by a doctor from the multidisciplinary diagnostic prenatal center, entering into the indications retained for this study
- Clinical validation of the couple's eligibility by an expert for some of selected indications
- Father and mother affiliated to a social protection health
Exclusion Criteria:
- Identified genetic or chromosomal abnormality explaining the observed malformation
- Inability to give informations to the father and / or mother (father or mother in emergency or life-threatening situation)
- Father and / or mother under the protection of justice
- Father and / or mother under guardianship or curatorship
- Nursing woman
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Diagnostic
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Other: 90 trios (270 subjects: 90 fetus, 90 mothers, 90 fathers)
|
A blood sample will be used for CGH-array and exome sequencing
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Diagnostic contribution of the exome sequencing in antenatal period in comparison with the chromosomal analysis (CGH-array) realized in current health care
Time Frame: 13 months
|
Comparison of the number of genetic diagnoses made by exome sequencing and by CGH-array.
|
13 months
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Effects on pregnancy management and/or postnatal child care due to an etiological diagnosis
Time Frame: 13 months
|
Percentage of antenatal and/or postnatal fetus/child care modified by the molecular result
|
13 months
|
Feasibility study of carrying out exome sequencing in the antenatal period in terms of time to deliver results
Time Frame: 13 months
|
Time to results from the inclusion of the trio (in days) specifying the time for each step (reception, sequencing, bioinformatics analysis, interpretation) (in days)
|
13 months
|
Other Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Difficulties of interpretation of the exome sequencing in antenatal period
Time Frame: 13 months
|
Numbers of variants of unknown signification identified by exome sequencing with and without bioinformatic filters (targeted exome)
|
13 months
|
Identification of new genes responsible of fetal malformations
Time Frame: 13 months
|
If the results of CGH-array and targeted exome sequencing are negative, analysis of the entire exome sequencing to find new genes implicated in fetal development
|
13 months
|
Collaborators and Investigators
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Anticipated)
Study Completion (Anticipated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- 7344
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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