Ultra-rapid Blastocyst Vitrification: Pilot Randomized Study

Recruiting now · Not applicable

Conditions studied: Infertility

In brief

Blastocyst vitrification is standard in assisted reproduction, but clinical data on ultra-rapid vitrification are limited. This pilot study evaluates the safety, feasibility, and preliminary clinical performance of an ultra-rapid blastocyst vitrification protocol compared with the standard approach.

Key facts

Study ID

NCT07556601

Run by

Fundacion Dexeus

People needed

80

Starts

2026-06-01

Expected to finish

2028-03-01

Last updated by the study team

2026-06-30

Who can join

Age: 18 and older, up to 50. Sex: female. Healthy volunteers: not accepted.

You may qualify if…

• Recipients of donor oocytes
• Blastocysts suitable for cryopreservation

You may not qualify if…

• Cycles involving PGT
• Cycles not reaching blastocyst stage.

Where it is running

• Hospital Universitario Quiron Dexeus — Barcelona, Spain (enrolling)
• Hospital Universitario Quiron Dexeus — Barcelona, Spain

Full record on ClinicalTrials.gov

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