Comparing Progestin-Primed Ovarian Stimulation to GnRH Antagonist in IVF

Effectiveness of Progestin-Primed Ovarian Stimulation Versus GnRH Antagonist Protocol for Ovarian Stimulation in IVF: a Randomized Clinical Trial

Not applicable Interventional Mỹ Đức Hospital · NCT06378268

This study is testing if a new way of preparing ovaries for IVF using Progestin-Primed Ovarian Stimulation works better than the standard GnRH antagonist method for women aged 18-40.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment626 (estimated)
Ages18 Years to 40 Years
SexFemale
SponsorMỹ Đức Hospital Academic / other
Locations1 site (Ho Chi Minh City)
Trial IDNCT06378268 on ClinicalTrials.gov

What this trial studies

This clinical trial evaluates the effectiveness of Progestin-Primed Ovarian Stimulation (PPOS) compared to the GnRH antagonist protocol in women undergoing in vitro fertilization (IVF). Participants aged 18-40 will be randomly assigned to receive either PPOS or GnRH antagonist treatment, with specific dosages of recombinant FSH and dydrogesterone or cetrorelix administered during the ovarian stimulation process. The study will monitor follicular development and hormone levels to assess the outcomes of each approach.

Who should consider this trial

Good fit: Ideal candidates for this study are women aged 18-40 with a BMI of 25 or less and specific ovarian reserve indicators who are seeking IVF treatment.

Not a fit: Patients who may not benefit include those with polycystic ovary syndrome (PCOS), those undergoing different IVF protocols, or those with allergies to the study medications.

Why it matters

Potential benefit: If successful, this study could provide a more effective ovarian stimulation protocol for women undergoing IVF, potentially improving pregnancy rates.

How similar studies have performed: Other studies have shown promising results with similar ovarian stimulation approaches, indicating potential for success in this trial.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Woman aged 18-40
* BMI ≤ 25kg/m2
* AMH \> 1.2ng/mL or AFC \>5
* Having indication for IVF treatment
* Agree to have frozen embryo(s) transfer
* Not participating in any other clinical trials
* Provision of written informed consent to participate

Exclusion Criteria:

* Undergoing IVF cycle with other protocols: Down-regulation, mild stimulation, Random start
* Oocyte donation cycles
* Undergoing vitrified oocyte accumulation
* Oocyte cryopreservation
* Cycle with PGT (Preimplatation genetic testing)
* Women with PCOS
* Women allergy to dydrogesterone, rFSH, GnRH antagonist

Where this trial is running

Ho Chi Minh City

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.
Conditions Progestins Primed Ovarian StimulationGnRH antagonistongoing pregnancy
Last reviewed 2026-06-13 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.