Mónica Faut: Subcutaneous Plus Vaginal Progesterone Improves Outcomes in Over 400 FET Cycles
Mónica Faut, Associate Editor at Reproduction and Fertility Journal, shared a post on LinkedIn about a paper by Chadi Yazbeck et al. published in Frontiers:
“After months of waiting, I’m thrilled to share the new publication led by Chadi Yazbeck, exploring whether ‘rescuing’ the luteal phase with extra progesterone can make a difference in hormone replacement therapy (HRT) frozen embryo transfer (FET) cycles.
What did the researchers find?
In over 400 FET cycles, adding subcutaneous progesterone increased live birth rates from 24.7% to 36.9%.
Why does it matter?
Inadequate progesterone before embryo transfer can reduce implantation chances. By combining vaginal and subcutaneous routes, the body can achieve more stable progesterone levels for a receptive endometrium.
This study highlights the importance of personalized medicine, adapting luteal support to each patient’s hormonal profile.
Read the full paper.
What do you think about personalized hormone support in IVF?
I’d love to hear your thoughts or experiences with progesterone monitoring in FET cycles.
Huge congratulations to the CMC Ambroise Paré / Pierre Cherest / Hartmann ART Group for this outstanding work.
I’m proud to have contributed as a Medical Writer on this project.”
Title: Effect of a luteal phase rescue protocol on live birth rates in frozen embryo transfer cycles
Authors: Chadi Yazbeck, François Olivennes, Nadia Kazdar, Claire Pietin-Vialle, Solenne Gricourt

-
Oct 11, 2025, 06:44The Global IVF Market Is Set to Reach $65B by 2032 – Meddilink
-
Mar 15, 2026, 08:18MHR Calls for Papers on Organoids, Assembloids and Emerging 3D Reproductive Models – ESHRE
-
Mar 15, 2026, 08:10This Month’s F and S On Air Podcast Episode Has Been Posted – Fertility and Sterility
-
Mar 15, 2026, 07:10Thomas McDonnel: Beta-2-Glycoprotein I Beyond Antibodies and APS
-
Mar 15, 2026, 06:52Fostamatinib as a Potential Treatment for APS-Related Thrombocytopenia – British Journal of Haematology
-
Mar 15, 2026, 06:49Does Endometrial Injury Improve Pregnancy Outcomes? – RBMO
-
Mar 15, 2026, 06:45Ultrasound Monitoring and Ovulation Trigger in IUI – Fertility and Sterility
-
Mar 15, 2026, 06:40Uterus Transplantation in Focus at Upcoming ESHRE Webinar – ESHRE
-
Mar 15, 2026, 06:34Abinet Gadissa: Patience Rewards the Scan in Fetal Echocardiography
-
Mar 15, 2026, 05:48RBMO Shares New Findings on Cell Number Biopsied During PGT-A
