ESTEEM is the first randomised trial of 23 chromosome testing of polar bodies using array CGH. The study is performed in women aged between 36 and 41 years and has two primary aims: to estimate the likelihood of having no euploid embryos in future ART cycles and to improve live birth rates in women of advanced maternal age.
At the onset it was estimated that 560 cycles needed to be randomized into either the treatment or the no-treatment, control group. The study is now in its last six months of recruitment, and it is to be hoped that by next years’ ESHRE meeting in Geneva we will be able to present significant results.
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