An observational study in Infertility, Mosaicism and Aneuploidy, sponsored by Inception Fertility Research Institute, LLC. Recruiting at 1 site in United States. Open to female participants. Per ClinicalTrials.gov, last updated 2026-08-14.
Sponsored by Inception Fertility Research Institute, LLC · Observational
The NEET Registry is a registry to track and study the outcomes of non-euploid embryo transfers (NEET) in The Prelude Network
Preimplantation Genetic Testing for Aneuploidy (PGT-A) is widely offered as an option for patients pursuing pregnancy through in vitro fertilization (IVF). Most often, embryos with normal chromosome results are selected for transfer, with well established outcomes. However, for patient specific reasons, transferring an embryo with a non-euploid result (i.e. mosaic, isolated segmental aneuploid or aneuploidy of whole chromosome(s)) may be considered. Very little information is available on the long-term outcomes of mosaic embryo transfer. Even less has been published on outcomes for other types of non-euploid results. This study aims to collect prenatal, neonatal and pediatric outcome information for embryos transferred with the various types of non-euploid PGT-A results to better inform providers and patients in their decision making regarding such transfers.
2,085 studies on the registry are indexed under Infertility; 357 are open to participants now.
This study's planned enrollment of 1,000 is above the median of 200 across 592 observational studies indexed under Infertility.
Browse Infertility studies →Inception Fertility Research Institute, LLC is the lead sponsor of 12 studies on the registry; 5 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Patients planning a non-euploid embryo transfer (NEET) at a fertility clinic in The Prelude Network.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Rate of Embryo Implantation
The frequency of positive pregnancy test (blood serum QHCG) 10-14 days post embryo transfer
Time frame: 5 years
Rate of Ongoing Pregnancy
The frequency of fetal heart tone identified on ultrasound post embryo transfer around 10-12 weeks gestation
Time frame: 5 years
Rate of Live Birth
The frequency of live birth post embryo transfer
Time frame: 5 years
Rate of Spontaneous Abortion
The frequency of spontaneous abortion post embryo transfer
Time frame: 5 years
Pediatric Developmental Milestones
Surveys inquiring about pediatric developmental milestones, as defined by the Center for Disease Control (CDC), are administered to the parent when child is 2 months, 6 months, 1 year, 2 year and 5 years of age. Results will be summarized.
Time frame: 5 years
Started Sep 2024 (actual). Primary completion is estimated for Dec 2030, 75 months after the start.
Of 242 observational studies under Infertility, half reached primary completion within 39 months of starting (the median), counting those still running; a quarter within 16 and three quarters within 100. This study's planned 75 months is above that.
How these figures are worked out, and which studies are left out of them.
Eligibility is decided by the study team. Share this record with your doctor or contact the team directly.
Contact study teamGet an email when the registry record changes — status, dates, results — or when someone posts here.
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Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.
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