AzTrials
AzTrials

Assisted Reproductive TechnologyNCT02171884

Study of the Impact of Freezing-thawing Procedures and the Prolonged Culture of Embryos on Epigenetic Regulation in Humans

An observational study of Assisted Reproductive Technology and Freezing/Thawing Procedure, run by Centre Hospitalier Universitaire Dijon at 2 sites in France.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
Search all trials

Trial summary

For this project, 4 groups of 38 infants have been created so as to evaluate the impact of Assisted-Reproduction Technology (ART) and more particularly the two procedures classically used in ART: the freezing/thawing of embryos and prolonged embryo culture (five days of culture in appropriate in vitro conditions to… Read more about this study

Who is it for?
Ages 18 to 50 yearsHealthy volunteers can take part
What is being tested?
Sample of cord blood and Sample of placenta
How many people
298 participants
Where
2 sitesFrance
Study dates
17 Jan 2013to 2 May 2022
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 50 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Study population: 4 groups of infants: * conceived naturally * born following ART with IVF/ICSI (short culture) * born following ART with IVF/ICSI and freezing/thawing of the embryo * born following ART with IVF/ICSI (prolonged culture)

Who may be able to join

  • Patients who have provided written informed consent,
  • Patients with national health insurance cover,
  • Maternal age at conception between 20 and 43 years,
  • Paternal age at conception between 18 and 50 years,
  • Singleton pregnancy

Who cannot join

  • ---Maternal disease:
  • pulmonary, cardiac
  • renal and metabolic diseases (including type 1 and 2 diabetes prior to the pregnancy)
  • systemic inflammatory diseases
  • hypertension
  • neurological diseases
  • chronic hepatitis B or C
  • HIV infection

Trial locations and contacts

2 sites in 1 country.

France2 sites
  • CHU de BESANCON

    Besançon, 25030

  • CHU de DIJON

    Dijon, 21079

Other trials in France

About this study

For this project, 4 groups of 38 infants have been created so as to evaluate the impact of Assisted-Reproduction Technology (ART) and more particularly the two procedures classically used in ART: the freezing/thawing of embryos and prolonged embryo culture (five days of culture in appropriate in vitro conditions to allow development of the embryo) in contrast with shorter culture of only two days.

Participation consists in accepting samples to be taken at the birth of the infant:

  1. from the umbilical cord.
  2. from the placenta.
Being tested
Sample of cord blood, Sample of placenta

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Sample of cord bloodOther

  • Sample of placentaOther

Study groups in NCT02171884
Study groupRoleWhat they receive
Group E1Singletons born following ART via IVF/ICSI (short culture)
Receives: Other: Sample of cord blood; Other: Sample of placenta
Group EC1Singletons born following ART via IVF/ICSI and freezing-thawing of the embryo
Receives: Other: Sample of cord blood; Other: Sample of placenta
Group T1Singletons conceived naturally
Receives: Other: Sample of cord blood; Other: Sample of placenta
Group E2Singletons born following ART with IVF/ICSI (prolonged culture)
Receives: Other: Sample of cord blood; Other: Sample of placenta

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Analysis of the expression of several genes subjected to imprinting (H19, IGF2, IGF2R, MEST, PEG3, SNRPN, IGF2, KCNQ1, GRB10 and PLAGL1)

    DNA / RNA extraction

    Measured: Baselines

  2. Analysis of the expression of 3 transposable elements (HERV-K, LINE-1 and ALU)

    DNA / RNA extraction

    Measured: Baselines

  3. Level of methylation and the level of expression of Genomic Imprinting (GI) and Transposable Elements (TE)

    DNA / RNA extraction

    Measured: Baselines

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted24 Jun 2014 (estimated)
  2. Study start17 Jan 2013
  3. Primary completion2 May 2022
  4. Study completion2 May 2022

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
298 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02171884
Sponsor's protocol ID
FAUQUE DB 2013
Status last verified
Mar 2024
First submitted
18 Jun 2014
Last updated
26 Mar 2024
Results posted
No

Questions about this trial

What is this clinical trial studying?

An observational study of Assisted Reproductive Technology and Freezing/Thawing Procedure, run by Centre Hospitalier Universitaire Dijon at 2 sites in France.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 26 Mar 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in France. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Analysis of the expression of several genes subjected to imprinting (H19, IGF2, IGF2R, MEST, PEG3, SNRPN, IGF2, KCNQ1, GRB10 and PLAGL1) (time frame: Baselines). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 26 Mar 2024.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in