Participants in this trial were oocyte donors who had undergone controlled ovarian hyperstimulation in the long gonadotrophin-releasing hormone (GnRH) agonist protocol or the multiple-dose GnRH antagonist protocol, had received human chorionic gonadotrophin (hCG) for triggering of final follicular maturation and had undergone oocyte retrieval (OR) with a yield of ≥ 6 cumulus-oocyte-complexes. The duration of the trial was two days: Day OR +2 (screening, randomisation and dosing of investigational medicinal product) and Day OR +3 (end-of-trial).