In the FSH group, 27 women did not complete the full study 4 intercycle, 3 chemical pregnancy, 19 personal reasons, 1 following cycle cancellation for OHSS. nolvadex xt Further studies have shown that the antitumor effects of trilostane are partially due to the inhibition of steroidogenesis and also to allosteric inhibition of the estrogen, probably binding directly to the DNA-binding domain.