Comparing two protocols for embryo development in IVF patients

A Randomized Control Trial to Compare the Euploid Rate of Blastocyst Between the Progestin-primed Ovarian Stimulation Protocol and the GnRH Antagonist Protocol in Patients Undergoing PGT-A

PHASE3 · ShangHai Ji Ai Genetics & IVF Institute · NCT04414748

This study is testing which of two different IVF treatment plans helps infertile women create more healthy embryos for pregnancy.

Quick facts

PhasePHASE3
Study typeInterventional
Enrollment400 (estimated)
Ages20 Years to 43 Years
SexFemale
SponsorShangHai Ji Ai Genetics & IVF Institute (other)
Locations1 site (Shanghai, Shanghai)
Trial IDNCT04414748 on ClinicalTrials.gov

What this trial studies

This randomized trial compares the euploid rate of blastocysts between two ovarian stimulation protocols: Progestin-primed Ovarian Stimulation (PPOS) and GnRH antagonist. Infertile women who require Preimplantation Genetic Testing for various medical indications will be recruited and randomly assigned to one of the two treatment groups. The primary outcome measured will be the euploidy rate of the resulting blastocysts, which is crucial for successful implantation and pregnancy. The study aims to determine which protocol yields a higher rate of genetically normal embryos.

Who should consider this trial

Good fit: Ideal candidates are women under 43 years old with specific infertility issues requiring Preimplantation Genetic Testing.

Not a fit: Patients with functional ovarian cysts, those receiving oocyte donation, or with untreated hydrosalpinx or endometrial polyps may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could improve the chances of successful pregnancies for women undergoing IVF by identifying the more effective ovarian stimulation protocol.

How similar studies have performed: Other studies have explored similar protocols in IVF, but the specific comparison of PPOS and GnRH antagonist in this context is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age of women \<43 years at the time of ovarian stimulation for IVF
* Antral follicle count (AFC) \>=5 on day 2-5 of the period
* PGT-A indicated for advanced maternal age (\>=38 years), recurrent miscarriage (\>=2 consecutive miscarriage) and repeated implantation failure (\>=4 embryos replaced or \>=2 blastocysts replaced without success), recurrent foetal aneuploidy

Exclusion Criteria:

* Presence of a functional ovarian cyst with E2\>100 pg/mL
* Recipient of oocyte donation
* Presence of hydrosalpinx or endometrial polyp which is not surgically treated

Where this trial is running

Shanghai, Shanghai

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Preimplantation Genetic Testing, Progestin-primed Ovarian Stimulation, Euploid Rate, GnRH Antagonist

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.