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

Summary

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.

Conditions

• Infertility, Female
• Oocyte Maturation

Interventions

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

Sponsors & Collaborators

• Instituto Valenciano de Infertilidad, IVI VALENCIA

  lead OTHER

Principal Investigators

• Ernesto Bosch, PhD · IVIRMA Valencia

Study Design

Allocation

NA

Purpose

OTHER

Masking

NONE

Model

SINGLE_GROUP

Eligibility

Min Age

18 Years

Max Age

35 Years

Sex

FEMALE

Healthy Volunteers

No

Timeline & Regulatory

Start

2023-02-28

Primary Completion

2024-12-31

Completion

2024-12-31

Countries

• Spain

Study Locations