Clinical trial Recruiting at 1 site Interventional Ages 18 to 40 Women only

Genetic testing to improve pregnancy rates in women with repeated implantation failure

Official title: Preimplantion Genetic Testing for Aneuploidies (PGT-A) in Patients With Recurrent Implantation Failure: a Pilot RCT

Run by Universitaire Ziekenhuizen KU Leuven · NCT03900780 · Data updated 2026-11-12

This study tests if a genetic test for embryos can help women who have had multiple failed pregnancies get pregnant more easily and have healthier pregnancies.

More Recurrent Implantation Failure trials

Quick facts

Study typeInterventional
Ages18 Years to 40 Years
SexWomen only
Enrollment100 (estimated)
SponsorUniversitaire Ziekenhuizen KU Leuven
Academic / other
Locations1 site (Leuven)
StatusRecruiting
StartedMay 1, 2019
Main results expectedDecember 31, 2025
Study endsDecember 31, 2026
Registry record updatedFebruary 26, 2025
Trial IDNCT03900780 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are women who have experienced recurrent implantation failure, defined as having transferred at least four good quality embryos across three or more cycles.

Probably not a fit

Patients with conditions such as thin endometrium, severe endometriosis, or those using donor oocytes or embryos may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study evaluates the effectiveness of Preimplantation Genetic Testing for Aneuploidies (PGT-A) in women experiencing recurrent implantation failure. It aims to determine if PGT-A can enhance the ongoing pregnancy rate per transferred embryo and reduce the time to pregnancy and miscarriage rates. The study involves comparing outcomes between patients receiving PGT-A and those receiving standard care. Women with a history of multiple failed embryo transfers will be recruited for this intervention.

Why it matters

Potential benefit: If successful, this approach could significantly improve pregnancy outcomes for women with recurrent implantation failure.

How similar studies have gone: Previous studies have shown promising results with PGT-A in improving pregnancy rates, suggesting this approach may be effective.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Women with recurrent implantation failure (previous transfer of least 4 good quality embryos in at least 3 fresh or frozen cycles)
* BMI \< 35
* Normal hysteroscopy

Exclusion Criteria:

* thin endometrium in previous cycles (\<6mm), endometriosis ASRM score III-IV, premature ovarian failure (POF, Bologna criteria), abnormal karyotype, donor oocytes or embryos, PGT-M

Where it's running

  • UZ Leuven
    Leuven, Belgium
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.