Ultra-rapid blastocyst vitrification for donor oocyte cycles

Is this trial a fit for you?

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

What this trial studies

This randomized, interventional pilot study compares an ultra-rapid blastocyst vitrification protocol to the standard vitrification approach in recipients of donor oocytes. The main focus is on safety, feasibility, and preliminary clinical performance, including post-warming viability and potential impacts on clinical outcomes. The study builds on existing vitrification methods and investigates whether faster exposure to cryoprotectants and an additional embryological step affect outcomes. It is designed as an initial step before broader clinical use, to identify any safety concerns or practical workflow implications. The trial is conducted at a single leading center in Barcelona with two listed locations, under the lead sponsor Fundacion Dexeus.

Why it matters

Who can join: the full rules

Inclusion Criteria:

* Recipients of donor oocytes
* Blastocysts suitable for cryopreservation

Exclusion Criteria:

* Cycles involving PGT
* Cycles not reaching blastocyst stage.

Where it's running

• Hospital Universitario Quiron Dexeus
  Barcelona, Spain Recruiting
• Hospital Universitario Quiron Dexeus
  Barcelona, Spain Not yet recruiting

Study contacts

• Study coordinator: Monica Parriego, PhD
• Email: monpar@dexeus.com
• Phone: 0034932274700

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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.