Comparing live birth rates in two IVF protocols

A Randomized Comparison of the Live Birth Rate Between the Progestin-primed Ovarian Stimulation Protocol and the Gonadotrophin Releasing Hormone Antagonist Protocol in Patients Undergoing in Vitro Fertilization

Not applicable Interventional ShangHai Ji Ai Genetics & IVF Institute · NCT03680053

This study is testing whether a new IVF method using a hormone called progestin can help women under 43 have more successful pregnancies compared to a traditional method.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment784 (estimated)
Ages20 Years to 43 Years
SexFemale
SponsorShangHai Ji Ai Genetics & IVF Institute Academic / other
Locations1 site (Shanghai)
Trial IDNCT03680053 on ClinicalTrials.gov

What this trial studies

This clinical trial aims to compare the live birth rates between two different protocols used in in vitro fertilization (IVF): the progestin-primed ovarian stimulation protocol and the gonadotrophin releasing hormone antagonist protocol. Infertile women under 43 years of age with a sufficient antral follicle count will be randomly assigned to receive either oral dydrogesterone or subcutaneous Cetrorelix during their ovarian stimulation phase. The primary outcome measured will be the live birth rate following the first frozen embryo transfer. This study seeks to determine if the progestin-primed approach is as effective as the traditional antagonist protocol.

Who should consider this trial

Good fit: Ideal candidates for this study are infertile women under 43 years of age with an antral follicle count of 5 or more.

Not a fit: Patients with functional ovarian cysts, those receiving oocyte donations, or those undergoing preimplantation genetic testing may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide a more effective IVF protocol that improves live birth rates for patients.

How similar studies have performed: Other studies have explored various IVF protocols, but this specific comparison of the progestin-primed and GnRH antagonist protocols 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) on day 2-5 of the period≥5

Exclusion Criteria:

* Presence of a functional ovarian cyst with E2\>100 pg/mL
* Recipient of oocyte donation
* Undergoing preimplantation genetic testing
* Presence of hydrosalpinx which is not surgically treated or endometrial polyp on scanning during ovarian stimulation

Where this trial is running

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.
Conditions InfertilityART
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.