Improving egg freezing techniques for fertility treatments

Validation of Semi-automatic Oocyte Vitrification by the GAVI® Machine in Medically Assisted Reproduction With Oocyte Donation

Not applicable Interventional University Hospital, Clermont-Ferrand · NCT06238570

This study is testing a new way to freeze donor eggs to see if it helps them survive better and leads to more successful pregnancies when used in fertility treatments.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment50 (estimated)
Ages18 Years to 38 Years
SexFemale
SponsorUniversity Hospital, Clermont-Ferrand Academic / other
Locations1 site (Clermont-Ferrand)
Trial IDNCT06238570 on ClinicalTrials.gov

What this trial studies

This study evaluates the effectiveness of a semi-automated vitrification method for freezing donor oocytes compared to traditional manual techniques. The research aims to assess the survival rates of oocytes after warming and their subsequent fertilization success using intracytoplasmic sperm injection (ICSI). By utilizing closed devices for storage, the study seeks to minimize variability and improve the consistency of oocyte preservation. The outcomes will include the quality of embryos developed from vitrified oocytes and their potential for successful pregnancies in assisted reproductive technology.

Who should consider this trial

Good fit: Ideal candidates for this study are women who are egg donors with a good quality ovarian reserve and meet specific health criteria.

Not a fit: Patients who are pregnant, lactating, or unable to provide informed consent will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could enhance the success rates of fertility treatments by improving the preservation of donor oocytes.

How similar studies have performed: Previous studies have shown promising results with automated vitrification techniques, indicating potential for success in this approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Egg donor
* Oocyte puncture for donation
* Good quality ovarian reserve (Antral follicle count evaluated by ultrasound: CFA ≥ 7)
* Negative serology status (HIV, hepatitis B and C, syphilis, CMV and HTLV)
* Absence of symptoms or COVID contact
* Absence of genetic contraindication to egg donation
* Woman able to give informed consent to participate in research
* Woman affiliated to a social security scheme

Exclusion Criteria:

* Decline to participate
* Pregnant and lactating woman
* Person under guardianship, curatorship, deprivation of liberty, protection of justice

Where this trial is running

Clermont-Ferrand

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions VitrificationEgg DonorFertilityAssisted Reproductive TechnologyEgg donor
Last reviewed 2026-06-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.