Natural micronized progesterone for hormonal replacement therapy in reproductive medicine

Abstract

A total of 64 artificial cycles with natural micronized progesterone replacement therapy were studied. Progesterone zoos used from day 4-5 before embryo transfer till gestational week 8-11 in different programmes (ovum/embryo donation, surrogacy, thawed embryos transfer after previous IVF/ICSI failures). Pregnancy rate was 43.5%. The HRT by natural micronized progesterone in artificial cycles could be stopped on gestational week 9 without any risk.