Assisted reproduction: Complementary techniques

Endometrial receptivity test (ERA®)

Endometrial receptivity test is a diagnostic method developed by igenomix® that can determine exactly when the best moment is to carry out the embryo transfer in an in vitro fertilisation cycle.

The implantation window is the point during the menstrual cycle when the endometrium is receptive, that is to say, when it is prepared for embryo implantation. Normally, this occurs between 5 and 7 days after ovulation (between days 19 and 21 of the cycle). However, this can vary significantly in some patients and it is, therefore, important to identify it in order to increase the probability of success in any future in vitro fertilisation cycle.

Infographic Endometrial receptivity test

By analysing 238 genes in an endometrial biopsy (carried out quickly and easily by the gynaecologist in their consultation room), the genetic profile of the endometrium and the personalised implantation window of the patient can be identified.

Endometrial receptivity test is indicated to patients with a morphologically normal uterus and with adequate endometrial thickness, but who have a history of more than one implantation failure in prior in vitro fertilisation cycles.

After carrying out the test, a displaced implantation window is observed in 20% of this patients, meaning that they could benefit from the technique and significantly increase the probabilities of a pregnancy in their in vitro fertilisation cycle.

Compatible techniques


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