- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03570073
Interest of Automated Oocyte Freezing (Instruvit)
Prospective Comparative Study of Two Manual and Automated Oocyte Vitrification Systems: Randomization of Mature Oocytes in Vitro of In Vitro Fertilization Attempts With Micro-injection at the "Centre d'Assistance Médicale à la Procréation" of the Dijon University Hospital
In the space of a few decades, oocyte cryopreservation has become established in the world of reproductive biology with the authorization of oocyte vitrification. This ultra-fast manual freezing technique (authorised in France since 2011) is mainly used to preserve oocytes in women who have to undergo a treatment that could potentially cause sterility. A clear improvement in survival rates since the early stages of slow freezing has been observed with vitrification but with fairly heterogeneous results Indeed, manual vitrification remains an operator-dependent technique with a long learning curve and which does not allow an oocyte survival rate of more than 70-80%.
The recent marketing of an automatic vitrification machine would make it possible to standardise the whole vitrification process from the contact/exchange of fluids to the sealing of the units, and thus potentially increase the oocyte survival rate. It seems to be in the best interest of women that their ability to conceive be preserved (probably for several years) with the technique that offers the best survival and reproducibility rates.
However, no studies have been conducted to assess the impact of such automation on oocyte survival.
For this reason the investigators wish to set up a comparative study between the routine, manual technique, and an automated technique (GAVI system), using immature oocytes, not suitable for fertilization, and usually discarded.
Study Overview
Status
Conditions
Intervention / Treatment
Study Type
Enrollment (Anticipated)
Phase
- Not Applicable
Contacts and Locations
Study Contact
- Name: Julie BARBERET
- Phone Number: 0380295101
- Email: julie.barberet@chu-dijon.fr
Study Locations
-
-
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Dijon, France, 21079
- Recruiting
- CHU Dijon Bourgogne
-
Contact:
- Julie BARBERET
- Phone Number: 0380295101
- Email: julie.barberet@chu-dijon.fr
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
Patient must be:
- Adult
- Affiliated to a National Health System
- Informed about the study and having given consent
- Receiving an in vitro fertilization attempt with microinjection (ICSI, IntraCytoplasmic Sperm Injection) or having agreed to donate oocytes after approval by the Multidisciplinary Committee
- Having more than two immature, non-fertile oocytes on the day the oocytes are retrieved,
- Having at least two mature oocytes at the end of a 24-hour maturation in vitro.
Exclusion Criteria:
- Protected patient, under guardianship or trusteeship
- In Vitro Fertilization (IVF) Attempts
- Attempts at IVF or ICSI performed in the context of viral risk (both systems will be frozen in the same nitrogen tanks in the assisted reproduction laboratory)
Study Plan
How is the study designed?
Design Details
- Primary Purpose: OTHER
- Allocation: RANDOMIZED
- Interventional Model: PARALLEL
- Masking: NONE
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
ACTIVE_COMPARATOR: Manual vitrification
|
Two oocytes will be frozen by vitrification.
At thawing, the degree of rehydration objectified by the measurement of oocyte surfaces and the appearance of potential lysis will be studied thanks to culture in the embryoscope.
|
EXPERIMENTAL: Automatic vitrification
|
Two oocytes will be frozen by vitrification.
At thawing, the degree of rehydration objectified by the measurement of oocyte surfaces and the appearance of potential lysis will be studied thanks to culture in the embryoscope.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
absence of post-thaw oocyte lysis
Time Frame: At warming
|
At warming
|
absence of post-thaw oocyte lysis
Time Frame: 3 hours after warming
|
3 hours after warming
|
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
Other Study ID Numbers
- Barberet AOI 2017
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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