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Female InfertilityFERTENOXNCT04866329

Female Fertility, Environmental Agents and Stress Oxidant

An observational study of Female Infertility, run by University Hospital, Tours at 1 site in France.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

Synthetic products used in industrial, pharmaceutical, agro-alimentary or agricultural fields are found in our environment. Thus, humans could be simultaneously exposed to several of these pollutants. Read more about this study

Who is it for?
Ages 18 to 43 years, women only
Conditions the study is for
Female Infertility
What is being tested?
Blood sample, Urine sample and Follicular fluid and granulosa cells sample
How many people
500 participants
Where
1 siteFrance
Study dates
8 Dec 2021to Dec 2027
Phase
Observational
Are there results?
Not yet: the study is under way

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 43 years
  • Women only
  • No healthy volunteers
  • Adult

Study population: Women followed in the department for an in vitro fertilisation procedure

Who may be able to join

  • Woman aged 18 to 43 years old
  • First oocyte puncture (IVF rank = 1)

Who cannot join

  • Opposition to data processing
  • IVF rank equal or greater than 2
  • Egg donation
  • Intracytoplasmic Sperm Injection with testicular biopsy
  • Intracytoplasmic Sperm Injection with self-preservation straw
  • Sperm donation

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

France1 site, 1 recruiting
  • Department of Reproductive Medicine and Biology, Univesity Hospital, Tours

    Tours, 37044

    Fabrice GUERIF, MD-PhD

    Claire VIGNAULT, MD

    Recruiting

Other trials in France

About this study

Official title: FERTilité féminine, Agents ENvironnementaux et Stress OXydant

Synthetic products used in industrial, pharmaceutical, agro-alimentary or agricultural fields are found in our environment. Thus, humans could be simultaneously exposed to several of these pollutants. Furthermore, these environmental agents exert or could exert adverse actions on fertility, by altering gamete and embryo quality through endocrine disruptor effects or through increase in oxidative stress in gonads (cellular pathway known to be involved in several human reproductive pathologies).

In this context, the objectives of the present project are to obtain descriptive and analytical data on woman and oocyte exposure to several environmental agents (bisphenols, ethynylestradiol and glyphosate). The relation between these pollutant measures in follicular fluid and urine (from women receiving follow-up of in vitro fertilization (IVF) protocol in the University hospital of Tours, France) and the oocyte quality, the IVF and pregnancy successes will be studied. Several oxidative stress biomarkers in blood and follicular fluid will be also measured for these women, who will complete a questionnaire on their lifestyles. Finally, thanks to in vitro approaches, the effects and the mechanisms of action (including oxidative stress) of these pollutants (alone or in cocktails) will be studied on granulosa cells from these patients.

Read the detailed description

After being informed about the project Fertenox during a meeting describing about the Fecondation In Vitro protocol, all women patients not opposing to participate in the study and to use individual information will be included in the research during the usual bacteriological exam performed 1-2 months before oocyte pick up in the University hospital. They will receive the questionnaire on their lifestyle during this exam.

On the eve of the oocyte pick up (at the end of ovarian stimulation) during the usual blood collection, three additional tubes of blood will be collected for each patient in the University hospital. Women will also receive the screw-top container for morning-after urine sample and the completion of the lifestyle questionnaire will be checked (some advices will be done if necessary to help patients to fill out the questionnaire). Samples will be treated, aliquoted and stored according to requirements the same day.

The day of the oocyte pick up, the first morning urine will be collected by patients at home (or otherwise in the hospital). The completed questionnaire will be recovered and follicular fluid and granulosa cells will be collected for each woman. Samples will be aliquoted and stored according to requirements the same day. Granulosa cells will be cultured for in vitro approaches in research labs the same day.

Tubes of blood, urine and follicular fluid will be coded and kept at -80°C in the University hospital until their shipment to laboratories, where analyses of pollutants (bisphenols, ethynylestradiol and glyphosate) and analyses of oxidative stress biomarkers (antioxidant vitamins, FRAP), activity of several enzymes (catalase, superoxide dismutase, glutathione peroxidase) and oxidized lipids) will be performed.

Being tested
Blood sample, Urine sample, Follicular fluid and granulosa cells sample
Keywords
Environmental pollutants, Bisphenols, Ethynylestradiol, Glyphosate, Oxidative stress, Oocyte and embryo quality, In vitro fertilization, Pregnancy, Follicular fluid and urine biomarkers
Medical subject headings
Infertility, Female

What participants receive

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

  • Blood sampleOther

    Additional blood sampling at the end of ovarian stimulation monitoring (the eve of the oocyte pick-up)

  • Urine sampleOther

    Collection of the first urine in the morning on the day of the oocyte pick-up

  • Follicular fluid and granulosa cells sampleOther

    Collection of follicular fluid and granulosa cells during oocyte pick-up.

Study groups in NCT04866329
Study groupRoleWhat they receive
In Vitro Fertilisation protocolWomen followed in the department for an in vitro fertilisation protocol
Receives: Other: Blood sample; Other: Urine sample; Other: Follicular fluid and granulosa cells sample

What is being measured

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

  1. Presence or absence of ethinylestradiol in follicular fluid

    Assessed by measure of ethinylestradiol in follicular fluid by Liquid Chromatography coupled to tandem Mass Spectrometry (LC-MS/MS)

    Measured: Baseline

  2. Presence or absence of ethinylestradiol in urine

    Assessed by measure of ethinylestradiol in urine by Liquid Chromatography coupled to tandem Mass Spectrometry (LC-MS/MS)

    Measured: Baseline

  3. Presence or absence of bisphenols in follicular fluid

    Assessed by measure of bisphenols in follicular fluid by Liquid Chromatography coupled to tandem Mass Spectrometry (LC-MS/MS)

    Measured: Baseline

  4. Presence or absence of bisphenols in urine

    Assessed by measure of bisphenols in urine by Liquid Chromatography coupled to tandem Mass Spectrometry (LC-MS/MS)

    Measured: Baseline

  5. Presence or absence of glyphosate in follicular fluid

    Assessed by measure of glyphosate in follicular fluid by Liquid Chromatography coupled to tandem Mass Spectrometry (LC-MS/MS)

    Measured: baseline

  6. Presence or absence of glyphosate in urine

    Assessed by measure of glyphosate in urine by Liquid Chromatography coupled to tandem Mass Spectrometry (LC-MS/MS)

    Measured: baseline

  7. Concentration of ethinylestradiol in follicular fluid

    Assessed by concentration of ethinylestradiol in follicular fluid by Liquid Chromatography coupled to tandem Mass Spectrometry (LC-MS/MS)

    Measured: baseline

  8. Concentration of ethinylestradiol in urine

    Assessed by concentration of ethinylestradiol in urine by Liquid Chromatography coupled to tandem Mass Spectrometry (LC-MS/MS)

    Measured: baseline

  9. Concentration of bisphenols in follicular fluid

    Assessed by concentration of bisphenols in follicular fluid by Liquid Chromatography coupled to tandem Mass Spectrometry (LC-MS/MS)

    Measured: baseline

  10. Concentration of bisphenols in urine

    Assessed by concentration of bisphenols in urine by Liquid Chromatography coupled to tandem Mass Spectrometry (LC-MS/MS)

    Measured: baseline

  11. Concentration of glyphosate in follicular fluid

    Assessed by concentration of glyphosate in follicular fluid by Liquid Chromatography coupled to tandem Mass Spectrometry (LC-MS/MS)

    Measured: baseline

  12. Concentration of glyphosate in urine

    Assessed by concentration of glyphosate in urine by Liquid Chromatography coupled to tandem Mass Spectrometry (LC-MS/MS)

    Measured: baseline

Secondary outcomes (22)
  1. Oocyte quality

    Assessed by nuclear maturity of each collected punctured oocyte

    Measured: baseline

  2. Embryo quality

    Assessed by in vitro early embryo developmental competence of each punctured oocyte (Day 2 embryo morphology, ability to reach the blastocyst stage, Day 5/6 blastocyst morphology, blastocyst outcome (transfer, freezing, discarding)

    Measured: Day 2 and day 5/6 after oocyte pick up

  3. Embryo implantation success (pregnancy success)

    Assessed by confirmation of a clinical pregnancy (blood beta human chorionic gonadotropin assay: > 1000 Unity Intenational /L), by confirmation of on-going pregnancy (ultrasound measure of foetus cardiac activity) and by confirmation delivery of live and healthy birth

    Measured: From day 7 after embryo transfer for beta hCG assay, at 8 weeks of amenorrhea for foetus cardiac activity and after birth

  4. Oxidative stress biomarkers in follicular fluid

    Assessed by measure of antioxidant vitamins (carotenoids, vitamin E, retinol) by High Performance Liquid Chromatography

    Measured: baseline

  5. Oxidative stress biomarkers in follicular fluid

    Assessed by measure of oxidized lipids (isoprostanoids) by LC-MS/MS

    Measured: Baseline

  6. Oxidative stress biomarkers in follicular fluid

    Assessed by measure of antioxidant power (FRAP: Ferric ion Reducing Antioxidant Power) by spectrophotometry

    Measured: Baseline

  7. Oxidative stress biomarkers in follicular fluid

    Assessed by measure of glutathione peroxidase activity by spectrophometry

    Measured: Baseline

  8. Oxidative stress biomarkers in blood

    Assessed by measure of plasma antioxidant vitamins (carotenoids, vitamin E, retinol) by HPLC

    Measured: On the eve of baseline

  9. Oxidative stress biomarkers in blood

    Assessed by measure of plasma oxidized lipids (isoprostanoids) by LC-MS/M

    Measured: On the eve of baseline

  10. Oxidative stress biomarkers in blood

    Assessed by measure of plasma antioxidant power (FRAP) by spectrophotometry

    Measured: On the eve of baseline

  11. Oxidative stress biomarkers in blood

    Assessed by measure of activities of glutathione peroxidase, catalase and superoxide dismutase in red blood cells by UV and visible spectrophometry

    Measured: On the eve of baseline

  12. Oxidative stress biomarkers in urine

    Assessed by measure of oxidized lipids (isoprostanoids) by LC-MS/MS

    Measured: baseline

  13. Information on woman lifestyles

    Assessed by a questionnaire on sociodemographic characteristics, smoking, physical activity, professional and environmental expositions, consumption of dietary supplements (antioxidants), consumption of drinks (tap water, from plastic bottle, cans...), food reheating habit, consumption of food from tin box, use of hygiene and cosmetic products...

    Measured: The 3 last months of lifestyles before baseline

  14. Pollutant effects on patient granulosa cells in vitro

    Assessed on cellular viability (CCK8, live-dead assay)

    Measured: after 24 or 48h of exposure

  15. Pollutant effects on patient granulosa cells in vitro

    Assessed on proliferation (BrdU)

    Measured: after 24 or 48h of exposure

  16. Pollutant effects on patient granulosa cells in vitro

    Assessed on steroid production (ELISA, LC-MS)

    Measured: after 48 or 72h of exposure

  17. Pollutant effects on patient granulosa cells in vitro

    Assessed on energetic metabolism (mitochondrial and glycolytic activities by Seahorse and Omnilog assays)

    Measured: after 1 or 24h of exposure

  18. Pollutant effects on patient granulosa cells in vitro

    Assessed on oxidative stress biomarkers (reactive oxygen production, Nrf2 nuclear translocation by confocal microscopy, cytometry and fluorimetry)

    Measured: after 5, 6 or 24h of exposure

  19. Pollutant effects on patient granulosa cells in vitro

    Assessed on protein expression (Western Blotting) of several markers of the studied functions (including oxidative stress)

    Measured: after 24, 48 or 72h of exposure

  20. Pollutant effects on patient granulosa cells in vitro

    Assessed on gene expression (RNAseq and Quantitative Reverse Transcription-PCR) of several markers of the studied functions (including oxidative stress)

    Measured: after 6 or 24h of exposure

  21. Pollutant effects on patient granulosa cells in vitro

    Assessed on protein expression (Western Blotting ) of signaling pathways

    Measured: after 1, 5, 10, 30 and 60 min of exposure

  22. Pollutant effects on patient granulosa cells in vitro

    Assessed on gene expression (RNAseq and qRT-PCR) of signaling pathways

    Measured: after 6h of exposure

Timeline

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

  1. First posted29 Apr 2021
  2. Study start8 Dec 2021
  3. Primary completion8 Dec 2026 (estimated)
  4. Study completionDec 2027 (estimated)

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
500 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04866329
Sponsor's protocol ID
DR200209
Other IDs
2020-A03241-38
Acronym
FERTENOX
Status last verified
Jul 2024
First submitted
23 Mar 2021
Last updated
25 Jul 2024
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

An observational study of Female Infertility, run by University Hospital, Tours at 1 site 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 2 inclusion and 6 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: looking for participants now, as of the sponsor's last update on 25 Jul 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site 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?

This study is still under way. Results are not available in the source record yet.

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

Contact Fabrice GUERIF, MD-PhD (02.47.47.84.76 ext. +33, fabrice.guerif@univ-tours.fr), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Presence or absence of ethinylestradiol in follicular fluid (time frame: Baseline). The study lists 12 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 25 Jul 2024.

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