Comparing different hormone triggers for oocyte maturation in women at risk of OHSS

Dual Trigger Versus Gonadotropin Releasing Hormone Agonist Trigger Combined With Luteal Human Chorionic Gonadotropin Administration

Phase 4 Interventional Mansoura University · NCT02330770

This study is testing which hormone trigger helps women at risk of ovarian hyperstimulation syndrome have better egg development and fertility during a specific fertility treatment.

Quick facts

PhasePhase 4
Study typeInterventional
Enrollment225 (estimated)
Ages20 Years to 35 Years
SexFemale
SponsorMansoura University Academic / other
Locations2 sites (Mansourah, Dakahlia and 1 other locations)
Trial IDNCT02330770 on ClinicalTrials.gov

What this trial studies

This clinical trial aims to compare reproductive outcomes in women undergoing intracytoplasmic sperm injection (ICSI) who are at risk for ovarian hyperstimulation syndrome (OHSS). Participants will be randomized into three groups: one receiving a dual trigger of GnRHa and low-dose HCG, another receiving a single low-dose HCG, and the last receiving multiple low-doses of HCG. The study will utilize a GnRH antagonist protocol for controlled ovarian hyperstimulation and monitor follicular growth through transvaginal sonography. The goal is to determine which triggering method yields the best outcomes for oocyte maturation and subsequent fertility.

Who should consider this trial

Good fit: Ideal candidates include women undergoing ICSI with a risk of OHSS due to factors like previous OHSS, PCOS, or high antral follicle counts.

Not a fit: Patients who are outside the age range of 20 to 35 years or have conditions like severe endometriosis or uterine abnormalities may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could improve reproductive outcomes for women at risk of OHSS during fertility treatments.

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

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Women subjected to ICSI through controlled ovarian hyperstimulation (COH) with pituitary downregulation by GnRH antagonist.
* Presence of risk for development of OHSS: 1) previous moderate or severe OHSS; 2) PCOS or polycystic ovary on ultrasound scan; 3) antral follicle count (AFC) \> 14 in both ovaries; 4) basal serum AMH level \> 3.36 ng/ml; 5) \> 14 follicles with diameter of ≥ 11 mm on the day of triggering of oocyte maturation; 6) E2 level \> 3000 pg/ml on the day of triggering of oocyte maturation.

Exclusion Criteria:

* Age \< 20 years or \> 35 years.
* BMI \< 19 kg/m2 or \> 35 kg/m2.
* Moderate or severe endometriosis.
* Hydrosalpinx.
* Uterine abnormalities or myoma.
* Previous uterine surgery.
* Use of alternative techniques to minimize the risk of OHSS.

Where this trial is running

Mansourah, Dakahlia and 1 other locations

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 InfertilityGnRHa triggerLuteal phase supportOHSS
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.