The purpose of this study is to assess the non-inferiority of a multidose GnRH antagonist (cetrorelix) regimen to a GnRH agonist (triptorelin) long protocol in young infertile women undergoing ovarian stimulation with Pergoveris 150 I.U./75 I.U. (r-hFSH/ r-hLH) for ICSI treatment because of male infertility.