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

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

Not applicable Interventional Universitaire Ziekenhuizen KU Leuven · NCT03900780

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.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment100 (estimated)
Ages18 Years to 40 Years
SexFemale
SponsorUniversitaire Ziekenhuizen KU Leuven Academic / other
Locations1 site (Leuven)
Trial IDNCT03900780 on ClinicalTrials.gov

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.

Who should consider this trial

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.

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.

Why it matters

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

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

Eligibility criteria

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 this trial is running

Leuven

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Recurrent Implantation Failure
Last reviewed 2026-06-13 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.