Non-Invasive Preimplantation Genetic Screening for Aneuploidies and Clinical Outcomes in Egg Donation Patients
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- This is an observational study: the protocol does not assign a study treatment.
- Who it may be relevant to
- Registry conditions: IVF. Basic parameters: 18 years — 50 years · Female.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- Spain
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
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Official title
Non-invasive Preimplantation Genetic Screening (niPGTA) in Oocyte Donation Patients.
Overview
Preimplantation genetic testing for aneuploidies (PGT-A) is commonly used in IVF but requires embryo biopsy and shows limited benefit in egg donation cycles. Non-invasive PGT-A (niPGTA), based on the analysis of cell-free embryonic DNA in spent culture media, offers a promising biopsy-free alternative. This prospective, blinded study in egg donation cycles will evaluate whether niPGTA-detected aneuploidy is associated with implantation failure and pregnancy loss, assessing its potential clinical value as a non-invasive embryo selection tool.
Detailed description
Preimplantation genetic testing for aneuploidies (PGT-A) is widely used in IVF to improve embryo selection and pregnancy outcomes. However, it requires invasive embryo biopsy and has not shown clear benefit in egg donation cycles, where embryos originate from young donors with lower aneuploidy rates. Non-invasive PGT-A (niPGTA), based on the analysis of cell-free embryonic DNA released into the culture medium, represents a promising alternative that avoids embryo biopsy.
This prospective, blinded, non-selection study will include women undergoing egg donation treatment. Embryos will be selected for transfer using standard morphological criteria only, while niPGTA results will not influence clinical decisions. After embryo transfer, the spent culture medium will be collected and analyzed using next-generation sequencing to determine the presence of chromosomal aneuploidies.
The study aims to evaluate whether aneuploidy detected by niPGTA is associated with implantation failure, biochemical pregnancy loss, and clinical miscarriage. By comparing niPGTA results between embryos that result in pregnancy and those that do not, this project will assess the potential clinical value of niPGTA as a non-invasive embryo selection tool in egg donation cycles.
Primary outcome measures
- Live birth rate [Time frame: 9 months from enrolment]
Secondary outcome measures (2)
- Pregnancy rate [Time frame: 2 weeks from enrolment]
- Miscarriage rate [Time frame: 12 weeks from enrollment]
Eligibility criteria
Inclusion criteria
- Women between 18 and 50 years old who are oocyte recipients.
- Signed consent form
- Transfer of a single blastocyst-stage embryo
- Male with normal sperm FISH
Exclusion criteria
- Uterine malformations
- Abnormal karyotypes in either partner
- Failure to sign informed consent
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: Yes
Study design
- Observational model
- Case-control
Study locations
Spain · 1 center
- Instituto Bernabeu — Alicante
Identifiers
NCT: NCT07364526 · IBB23