The effect of cetrorelix vs. ganirelix on pregnancy outcome using minimal gonadotropin stimulation in women with elevated day 3 serum follicle stimulating hormone levels.
ABSTRACT To determine if the choice of gonadotropin releasing hormone antagonist influences subsequent pregnancy rates in women with diminished egg reserve.
Retrospective determination of pregnancy rates following embryo transfer in women with day 3 FSH >12 mIU/ml using lower dose gonadotropin stimulation regimen.
Though no significant differences were found there was a trend for lower pregnancy rates with ganirelix vs cetrorelix.
The trend for lower pregnancy rates with ganirelix vs. cetrorelix seen in women with diminished egg reserve is consistent with the findings of a study performed in women with normal egg reserve using a normal gonadotropin stimulation regimen. It is not clear if the adverse effect is on the endometrium or the embryo.