CompletedNot Applicable

Day 3 Fresh Transfer Followed by Day 3 or Day 5 Vitrification of Supernumerary Embryos

Belgium150 participantsStarted 2018-01-15

Plain-language summary

This monocenter academic study aims to evaluate the effectiveness and cost effectiveness of two different strategies: fresh Embryo Transfer (ET) on day 3 followed by cryopreservation of cleavage-stage (Day 3) embryos versus blastocyst-stage (Day 5) embryos. The primary outcome is the cumulative pregnancy rate after all transfers (fresh and/or frozen embryo transfer cycles which might take about 1 year), up to two sequential cycles. The secondary outcome concerns a cost analysis of both strategies from the healthcare payer's perspective.

Who can participate

Age range

18 Years – 37 Years

Sex

FEMALE

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * subfertile women planned for the first or second oocyte retrieval for in vitro fertilisation (IVF)/Intracytoplasmic sperm injection (ICSI) treatment * who are older than 18 and less than 38 years old * who have normal Follicle Stimulating Hormone (FSH) and normal Anti-Mullerian Hormone (AMH) levels Exclusion Criteria: * treatment with donor oocytes or donor embryos * patients planned for Pre-implantation Genetic Diagnosis (PGD) * Patients with BMI\>30 * patients with endometriosis grade III-IV

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

cumulative pregnancy rate

Timeframe: Cumulative pregnancy is measured after two consecutive IVF cycles including fresh and frozen transfers which might take about 1 year

Trial details

NCT IDNCT04196036

SponsorSophie Debrock

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2020-07-31

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