Second Phase of the Pilot Study for Obtaining Mature Oocytes by in Vitro Maturation in Oocyte-donor Women (MIVODON-II)

March 11, 2024 updated by: Instituto Valenciano de Infertilidad, IVI VALENCIA

In vitro maturation (IVM) is a technique for obtaining potentially fertilizable oocytes from immature oocytes. An oocyte must be mature both nuclearly and cytoplasmically in order to be competent in the reproductive process. Nuclear maturation involves an oocyte in metaphase II stage and is easily evaluated for its morphology. However, cytoplasmic maturation can only be evaluated by in vitro fertilization of that oocyte. A mature nuclear and cytoplasmic oocyte is the one capable of producing a viable embryo. This study aims to optimize the in vitro maturation (IVM) technique to achieve nuclear mature oocytes, i.e., to mature the oocytes up to the metaphase II stage. In addition, an artificial oocyte activation (AOA) will be carried out to check the cytoplasmic maturation of the oocytes, avoiding the generation of potentially viable embryos.

This study corresponds to a second phase of the pilot study for the development of this technique in our IVF laboratory. We will use all we have learned in the first phase, as well as the experience acquired, to advance in the optimization of this protocol.

The correct functioning of this IVM technique would mean a reduction in the costs of ovarian stimulation treatments, as lower doses and shorter stimulation times are required, which implies lower risks for women derived from the medication and less stress for them.

Study Overview

Status

Recruiting

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Estimated)

10

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Study Locations

  • Spain
      • Valencia, Spain, 46015

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult

Accepts Healthy Volunteers

No

Description

-Inclusion criteria:

Women between 18-35 years old who have belonged to the egg donation program. Donors who agree to participate in the study after informing and signing the Informed Consent.

Documented previous good response to ovarian stimulation (at least 10 total oocytes and/or 8 MII).

Donors with at least one previous donation cycle, in which all oocytes obtained were freshly fertilized.

Donors who have already done all their donation cycles allowed by law. No personal or family history of interest.

From the medical point of view:

Body mass index between 18-25 kg/m2. Normal uterus and ovaries, without organic pathology. No polycystic ovaries Antral follicle count (AFC) >12 in the sum of the two ovaries on day 2-3 of the menstrual cycle. Normal karyotype Negative screening for infectious diseases (Hepatitis B virus, Hepatitis C virus, Human Immunodeficiency Virus and Syphilis). General analysis with hemogram, hemostasis and biochemistry with parameters within normality.

-Exclusion criteria:

Any systemic or metabolic disorder that contraindicates the use of gonadotropins.

Any medical condition that implies non-inclusion in the oocyte donation program.

Taking hormonal contraceptives within the last 3 months.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Other
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Donors with history of optimal ovarian response
IVIRMA Valencia donors between the ages of 18-35 years old, with normal ovarian function, with a history of optimal ovarian response (at least 10 total oocytes and/or 8 MII) and who have already completed all their donation cycles allowed by law.
Drug: Controlled ovarian stimuation
3 days stimullation protocol using hMG-HP
Procedure: Oocyte pick up
Surgical oocyte pick up without triggering
Procedure: Oocyte in vitro maturation
In vitro maturation procedure
Procedure: Oocyte in vitro activation
In vitro oocyte activation procedure

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Oocyte in-vitro maturation
Time Frame: 1 YEAR
To evaluate the rate of potentially competent oocytes (after the in vitro maturation).
1 YEAR
Oocyte activation
Time Frame: 1 YEAR
To evaluate the rate of potentially competent oocytes after oocyte activation process.
1 YEAR

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Oocyte recovery rate
Time Frame: 1 year
To evaluate Oocyte recovery rate per punctured follicle
1 year
In vitro nuclear maturation rate
Time Frame: 1 year
To evaluate In vitro nuclear maturation rate per punctured follicle
1 year
Artificial oocyte activation rate.
Time Frame: 1 year
To evaluateArtificial oocyte activation rate. per punctured follicle
1 year

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Instituto Valenciano de Infertilidad, IVI VALENCIA

Investigators

  • Principal Investigator: Ernesto Bosch, PhD, IVIRMA Valencia

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

February 28, 2023

Primary Completion (Estimated)

December 31, 2024

Study Completion (Estimated)

December 31, 2024

Study Registration Dates

First Submitted

October 23, 2023

First Submitted That Met QC Criteria

October 23, 2023

First Posted (Actual)

October 26, 2023

Study Record Updates

Last Update Posted (Actual)

March 12, 2024

Last Update Submitted That Met QC Criteria

March 11, 2024

Last Verified

March 1, 2024

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 2109-VLC-083-EB

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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