It allows to determine, through molecular markers of gene expression, the implantation window or the moment during the cycle in which the endometrium shows the highest degree of receptivity for the embryo to be implanted.
It is performed by taking a sample of endometrial tissue through a biopsy, which is performed on +7 day post ovulation in a natural ovulatory cycle or by preparing the endometrium with previous medication.
This biopsy is a simple practice that is generally performed in the doctor’s office, as it is a procedure that is very well tolerated by patients.
It also allows the study of the endometrial microbiota (EMMA) and to diagnose possible infections (ALICE).
The study allows to locate the implantation window, the moment when the endometrium is receptive. The pregnancy rate of the ERA test in patients with implantation failure is 73%. More than 32,000 women in 70 countries have taken the ERA test.
Analysis of 248 genes of the endometrial sample to get to know the moment of receptivity of each patient using a prediction model.
The results indicate the moment when the embryo transfer should be performed.