Mechanisms and Factors Responsible for the Inhibition of Transposons During Fetal Gonad Development in Humans
1 other identifier
observational
30
1 country
1
Brief Summary
This is a single-centre study over 36 months for the inclusion of 30 patients. The selection and inclusion of patients will take place according to the criterion of Medical Termination of Pregnancy at 4 different gestational ages (8-12 weeks of gestation (WG)), 13-16 WG, 17-23 WG and 25-35 WG. The tissue analysed will principally be the gonads, other somatic tissue will also be systematically harvested in parallel (liver and psoas muscle) for control purposes. The gonads will be subjected to molecular biology analyses destined to quantify the expression of transposons and their inhibitors.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for all trials
Started Jan 2014
Longer than P75 for all trials
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
January 29, 2014
CompletedFirst Submitted
Initial submission to the registry
June 18, 2014
CompletedFirst Posted
Study publicly available on registry
June 24, 2014
CompletedPrimary Completion
Last participant's last visit for primary outcome
January 1, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
January 1, 2027
July 8, 2022
July 1, 2022
12.9 years
June 18, 2014
July 7, 2022
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Spatio-temporal analysis of the activity of TEs by RT-qPCR and immunostaining
Baselines
Secondary Outcomes (1)
Promoter methylation profile by pyrosequencing
Baselines
Other Outcomes (1)
Spatiotemporal analysis piARN way: RT qPCR, Small RNA Seq, and immunoprecipitation of proteins PIWI
Baselines
Study Arms (1)
Foetus
Interventions
Eligibility Criteria
Male foetuses of 10 to 37 weeks of amenorrhea obtained following medical termination of pregnancy or voluntary termination of pregnancy.
You may qualify if:
- Couple or mother who has provided written informed consent
- Foetus between 10 and 37 weeks of amenorrhea (WA)
- Male foetus
- Foetus obtained following medical termination of pregnancy or voluntary termination of pregnancy
You may not qualify if:
- persons without national health insurance cover
- foetus presenting aneuploidy
- foetus presenting a malformation of the genital organs
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
CHU de DIJON
Dijon, 21079, France
Central Study Contacts
Study Design
- Study Type
- observational
- Observational Model
- CASE ONLY
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
June 18, 2014
First Posted
June 24, 2014
Study Start
January 29, 2014
Primary Completion (Estimated)
January 1, 2027
Study Completion (Estimated)
January 1, 2027
Last Updated
July 8, 2022
Record last verified: 2022-07