NCT06670586

Brief Summary

The aim of this clinical trial is to evaluate the efficiency of two fertilization techniques used in Assisted Reproduction: conventional In Vitro fertilization (cIVF) and Intracytoplasmic Sperm Injection (ICSI), in terms of in-vitro and clinical results, in non-male infertility patients, comparing them in sibling oocytes. The main questions it aims to answer are: Does ICSI result in better fertilization rate, blastocyst rate or usable blastocyst rate? Does ICSI result in better pregnancy, clinical pregnancy and live birth rates? Researchers will compare cIVF to ICSI in sibling oocytes to assess if a technique offers better results. Participants undergoing an IVF/ICSI cycle will have their oocytes randomly divided in two groups: the oocytes from one group will be fertilized using cIVF and the oocytes from the other group using ICSI.

Trial Health

55
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
128

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Jan 2022

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 1, 2022

Completed
1.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 30, 2023

Completed
11 months until next milestone

First Submitted

Initial submission to the registry

October 31, 2024

Completed
1 day until next milestone

First Posted

Study publicly available on registry

November 1, 2024

Completed
4 months until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2025

Completed
Last Updated

November 14, 2024

Status Verified

October 1, 2024

Enrollment Period

1.9 years

First QC Date

October 31, 2024

Last Update Submit

November 12, 2024

Conditions

Keywords

In Vitro FertilizationICSIrandomized controlled trialsibling oocytes

Outcome Measures

Primary Outcomes (3)

  • Usable blastocyst rate

    Percentage of oocytes that develop to blastocyst stage and are transferred of cryopreserved

    From oocyte retrieval to 6 days after

  • Fertilization rate

    Percentage of oocytes that show normal fertilization

    From oocyte retrieval to 24 hours later

  • Blastocyst rate

    Percentage of oocytes that develop to blastocyst stage

    From oocyte retrieval to 6 days after

Secondary Outcomes (3)

  • Pregnancy rate

    From embryo transfer to 14 days later

  • Clinical pregnancy rate

    From embryo transfer to 4 weeks later

  • Live birth delivery rate

    From embryo transfer to 40 weeks later

Study Arms (2)

conventional IVF (cIVF)

ACTIVE COMPARATOR

The oocytes of this arm will be fertilized using conventional In Vitro Fertilization (cIVF)

Procedure: conventional in vitro fertilization

Intracytoplasmic Sperm Injection (ICSI)

ACTIVE COMPARATOR

The oocytes of this arm will be fertilized using Intracytoplasmic Sperm Injection (ICSI)

Procedure: intracytoplasmic sperm injection (ICSI)

Interventions

Fertilization via conventional In Vitro Fertilization

conventional IVF (cIVF)

Fertilization via intracytoplasmic sperm injection

Intracytoplasmic Sperm Injection (ICSI)

Eligibility Criteria

Age18 Years - 40 Years
Sexfemale
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • Patients with at least 6 fresh, own oocytes.
  • Patients with culture to blastocyst stage for all the embryos.
  • Non-male factor infertility patients: semen sample with a good progresive sperm count, appropriate for cIVF.

You may not qualify if:

  • Patients not willing to sign the informed consent. Patients not understanding Spanish.
  • Patients with severe endometriosis
  • Patients with recurrent implantation failure: at least 2 miscarriages or at least 3 transfers with good-quality embryos without pregnancy.
  • Patients presenting total fertilization failure or very poor results in any of the two techniques in previous cycles

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Hospital Clinico San Carlos

Madrid, Madrid, 28040, Spain

Location

MeSH Terms

Interventions

Congresses as TopicFertilization in VitroSperm Injections, Intracytoplasmic

Intervention Hierarchy (Ancestors)

OrganizationsHealth Care Economics and OrganizationsReproductive Techniques, AssistedReproductive TechniquesTherapeuticsInvestigative Techniques

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Oocytes obtained from every participant are divided in two groups and each group is randomly allocated to one of the two techniques that we want to analyze. So, there are not two groups of participants but two groups of oocytes from every participan
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

October 31, 2024

First Posted

November 1, 2024

Study Start

January 1, 2022

Primary Completion

November 30, 2023

Study Completion

March 1, 2025

Last Updated

November 14, 2024

Record last verified: 2024-10

Data Sharing

IPD Sharing
Will share

Individual participant data that underlie the results reported in this article, after deidentification (text, tables, figures, and appendices).

Shared Documents
STUDY PROTOCOL, ICF
Time Frame
Beginning 9 months and ending 36 months following article publication.
Access Criteria
Who will be able to access the IPD: Investigators whose proposed use of the data has been approved by an independent review committee ("learned intermediary") identified for this purpose. For what type of analysis: For individual participant data meta-analysis. How they will be able to access: Proposals should be directed to mariadolores.cuquerella@salud.madrid.org. To gain access, data requestors will need to sign a data access agreement.

Locations