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http://dx.doi.org/10.1016/j.jacr.2024.11.018 | DOI Listing |
Hum Reprod
December 2024
Assisted Reproduction Center, Northwest Women's and Children's Hospital, Xi'an, China.
Study Question: Are live birth rates (LBRs) per woman following flexible progestin-primed ovarian stimulation (fPPOS) treatment non-inferior to LBRs per woman following the conventional GnRH-antagonist protocol in expected suboptimal responders undergoing freeze-all cycles in assisted reproduction treatment?
Summary Answer: In women expected to have a suboptimal response, the 12-month likelihood of live birth with the fPPOS treatment did not achieve the non-inferiority criteria when compared to the standard GnRH antagonist protocol for IVF/ICSI treatment with a freeze-all strategy.
What Is Known Already: The standard PPOS protocol is effective for ovarian stimulation, where medroxyprogesterone acetate (MPA) is conventionally administered in the early follicular phase for ovulatory suppression. Recent retrospective cohort studies on donor cycles have shown the potential to prevent premature ovulation and maintain oocyte yields by delaying the administration of MPA until the midcycle (referred to as fPPOS), similar to GnRH antagonist injections.
J Am Coll Radiol
November 2024
Zucker School of Medicine/Northwell Health, Manhasset, New York. Electronic address:
J Am Coll Radiol
November 2024
Department of Radiology, Northwestern Medicine, Chicago, Illinois; Department of Radiology, Northwestern University Feinberg School of Medicine, Chicago, Illinois. Electronic address:
J Am Coll Radiol
November 2024
Mayo Clinic, Rochester, Minnesota. Electronic address:
J Am Coll Radiol
November 2024
Duke University Medical Center, Address: 2301 Erwin Rd, Durham, NC 27710.
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