A METHOD OF INHIBITING ACCELERATED ENDOMETRIAL MATURATION IN A HUMAN FEMALE SUBJECT AND A FEMALE MAMMAL EXCEPT HUMAN AND A METHOD OF ACHIEVING PREGNANCY IN A HUMAN FEMALE SUBJECT AND A FEMALE MAMMAL EXCEPT HUMAN

摘要

A method of inhibiting the occurrence of advanced endometrium maturation in a female mammal undergoing fertility treatment is disclosed. The method comprises the administration at least one 17 alpha -fluoralkylated progesterone receptor antagonist to the female mammal.