An interventional study of Questionnaire in IVF, sponsored by University Hospital, Toulouse. Completed at 1 site in France. Open to female participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-05-07.
Sponsored by University Hospital, Toulouse · Not applicable, Interventional, and Basic science
During an In Vitro Fertilization (IVF) attempt, several embryos are obtained but not all of them can be transferred to the uterus in the same cycle due to the risk of multiple pregnancies. Thus, it is very common for these couples to benefit from cryopreservation. Patients scheduled for frozen embryo transfer (TEC) receive estrogen and progesterone replacement therapy to prepare the endometrium for implantation. Data from the literature recently showed that low progesterone on the day of embryo transfer was responsible for a significantly higher rate of implantation failure and miscarriage.
University Hospital, Toulouse is the lead sponsor of 794 studies on the registry; 214 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Exclusion Criteria:
Patients benefit from the usual treatment for frozen embryo transfer with a preparatory cycle of the artificial endometrium: 150 µg of percutaneous estradiol for approximately 11 days and 200 mg of progesterone morning and evening to be taken vaginally for 2 days in case of embryo transfer at day 2 stage, 3 days in case of embryo transfer at day 3 stage, 5 days in case of day 5 embryo transfer or 6 days in case of day 6 embryo transfer.
Other: Questionnaire
A questionnaire will be offered to patients and identify the schedules of administration of progesterone, the day and time of blood samples taken as part of the care, the potential adverse events associated with this administration.
Average plasma progesterone concentration.
Dosage of apparent clearance (CL/F)
Time frame: Day of embryo transfer.
Plan to share: No
No publications or documents are linked to this record.
This study is completed, as verified in May 2026. You cannot join it, but the record below documents what was studied.
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University Hospital, Toulouse