Prospective Randomized Trial Comparing Corifollitropin-alfa Late Start vs. Corifollitropin-alfa Standard Start in Expected Poor, Normal and High-responders Undergoing IVF

Fertility Disorders

To compare the number of retrieved oocytes in the late start CF-alfa (day 4) versus standard CF-alfa protocols (day 2) in patients undergoing IVF. The primary analysis will be also performed in specific subgroups of patients: expected poor-responders, expected normal responders and expected hyper-responders

The investigators hypothesize that: 1. CF-alfa late start (day 4) will show comparable efficacy in terms of number of retrieved oocytes versus standard CF-alfa (day 2) protocol. In certain groups of patients, CF-alfa late start might show differences in terms of efficacy such as in poor-responder patients. 2. CF-alfa late start (day 4) will obtain similar results in terms of vital pregnancy rates with a similar safety profile with respect to COS performed using CF-alfa standard administration (day 2) in expected normal, poor, or high responders. 3. Oocytes and embryos obtained using CF-alfa late start will have comparable morphological features and development potential than those obtained with CF-alfa standard. 4. The patients' satisfaction will possibly be higher using CF-alfa late start than with CF-alfa standard expecially in those patients who will not have the need to add further daily recFSH injections

Italy