Different protocols using agonists of GnRH-a have been proposed for the ovarian stimulation in IVF cycles. In case of stimulation failure with the flare-up protocol, we have investigated whether an immediate switch to pituitary blockade by the long-acting analog may avoid the cycle to be canceled. This procedure allows a rescue of cycles among poor responders and does not have any deleterious effect on the recruitment of follicles, oocyte quality, fertilization, and pregnancy rates.