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Effect of delayed start protocol in outcome of ART cycle in poor ovarian responders

Comparison of the effect of delayed start GnRH antagonist protocol and usual antagonist protocol on oocyte count and pregnancy rate in ART cycle in poor ovarian responders

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
IRCT
Registry ID
IRCT2015100424335N1
Enrollment
72
Registered
2016-01-18
Start date
2015-03-01
Completion date
Unknown
Last updated
2021-08-30

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Infertility. Complication associated with artificial fertilization, unspecified

Interventions

Intervention 1: In intervention group 0/25 mg/vial cetrorelix( GNRH antagonist), one vial daily, subcutaneous, for 7 days, before starting COH. Then start ovarian stimulation with 375 units of gonadot

Sponsors

Vice Chancellor for research of Shahid Sadoughi University of Medical Sciences
Lead Sponsor

Eligibility

Sex/Gender
Female
Age
18 Years to 45 Years

Inclusion criteria

Inclusion criteria: Poor ovarian responders according to Bologna criteria. At least two of the following three features must be present: Advanced maternal age (=40 years) or any other risk factor for poor ovarian response; A previous poor ovarian response (=3 oocytes with a conventional stimulation protocol); An abnormal ovarian reserve test (i.e. AFC <5–7 follicles or AMH <1.1 ng/ml). Two episodes of POR after maximal stimulation are sufficient to define a patient as poor responder.

Exclusion criteria

Exclusion criteria: History of endocrine and metabolic disorders endometriosis azoospermia

Design outcomes

Primary

MeasureTime frame
Mature oocytes count. Timepoint: Oocyte retrieval day. Method of measurement: Counting number of mature oocytes with microscope.;Total oocytes count. Timepoint: Oocyte retrieval day. Method of measurement: Counting number of total oocytes with microscope.

Secondary

MeasureTime frame
Fertilization rate (two-pronuclear [2PN]/ MII). Timepoint: 16 hr after Intra-cytoplasmic sperm injection. Method of measurement: With microscope.;Implantation rate (the number of gestational sacs divided/the number of transferred embryos). Timepoint: 3 week after positive serum ßhCG. Method of measurement: Vaginal ultrasonography.;Ongoing pregnancy rate. Timepoint: after 12 week gestation. Method of measurement: ultrasound.;Miscarriage rate. Timepoint: miscarriages before 20 weeks gestation. Method of measurement: ultrasound.;Total dosage of gonadotropin. Timepoint: End of IVF cycle. Method of measurement: Count the dose of gonadotropin received.;Ovarian stimulation days. Timepoint: End of IVF cycle. Method of measurement: Counting the days of ovarian stimulation.;Number of embryo. Timepoint: On the 2nd day after ICSI. Method of measurement: Observation with microscope.;Chemical pregnancy. Timepoint: 14 days after embryo transfer. Method of measurement: Serum ßhCG.;Clinical pregnancy. Timepoint: 3 weeks after positive serum ßhCG. Method of measurement: Vaginal ultrasonography.;Oocyte maturity rate (MII number /total oocytes number). Timepoint: oocyte retrieval day. Method of measurement: with microscope.;Oocyte yield (total oocytes number /antral follicle count [AFC]). Timepoint: oocyte retrieval day for oocyte count and before the start of the ivf cycle for antral follicles. Method of measurement: With microscope for oocytes and vaginal ultrasound for antral follicles.;Mature oocyte yield (MII number/AFC). Timepoint: oocyte retrieval day for mature oocyte count and before the start of the ivf cycle for antral follicles. Method of measurement: With microscope for mature oocytes and vaginal ultrasound for antral follicles.

Countries

Iran (Islamic Republic of)

Contacts

Public ContactRobabe Hosseinisadat

Kerman University of Medical Sciences

robabehosseinisadat@yahoo.com+98 35 3824 7085

Outcome results

None listed

Source: IRCT (via WHO ICTRP) · Data processed: Feb 4, 2026