Skip to content

Comparison of Progestin Primed Ovarian Stimulation (PPOS) vs.GnRH Antagonist Methods on IVF Outcomes

The Comparative Results of Progestin Primed Ovarian Stimulation (PPOS) and GnRH Antagonist Ovarian Stimulation Methods on IVF Outcomes

Status
Not yet recruiting
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06396390
Enrollment
152
Registered
2024-05-02
Start date
2024-08-01
Completion date
2026-08-01
Last updated
2024-07-17

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

Conditions

IVF, Fertility Issues, Infertility

Keywords

GnRH Antagonist, Progestin Primed Ovarian Stimulation, Infertility, Ovarian Stimulation

Brief summary

The goal of this randomized clinical trial is to compare the effects of two different ovarian stimulation methods: Progestin Primed Ovarian Stimulation (PPOS) vs. GnRH Antagonist in embryologic outcomes of IVF Patients.

Detailed description

The goal of this randomized clinical trial is to compare the effects of two different ovarian stimulation methods: Progestin Primed Ovarian Stimulation (PPOS) vs. GnRH Antagonist in embryologic outcomes of IVF Patients. Ovarian stimulation will be conducted according to the assigned arm protocol. Both artificially prepared and modified natural cycles will be eligible to be included and the choice will be done according to the doctor's preference and the patient's menstrual cycle regularity. * For artificially prepared transfers, Estradiol Hemihydrate (Estrofem©, 2mg, Novo Nordisk, Malov/Denmark) 3x1 PO will be started on the day 2 of the menstrual cycle. After 12-14 days of usage, in order not to cancel the cycle, endometrial thickness needs measured at least 7mm and serum progesterone level \< 1.5 ng/mL. * For luteal support in addition to Progesterone (Progestan Dex©, 25mg, Kocak Farma İlaç ve Kimya Sanayi A.Ş., Istanbul, Turkiye) 2x1 SC once, with a 12-hour interval at day 14 of the menstrual cycle; Progesterone (Progestan©, 200mg, Kocak Farma İlaç ve Kimya Sanayi A.Ş., Istanbul, Turkiye) 2x1 PV will be started and continued for 5 days. Embryo transfer will be performed at 6th day. Estradiol Hemihydrate will be stopped on week 2 and progesterone support will be continued until the 8th week of gestation.

Interventions

In this regimen, Dydrogesterone (Duphaston©; 10mg; Deva Holding, Tekirdag/Turkiye) 3x1 PO will be started on day 2 of menstrual cycle and will be continued until the trigger day. The patient's dosage will be tailored based on their BMI, AMH value, and the number of follicles observed during the ultrasound examination on the 2nd day of the menstrual cycle. For triggering, Choriogonadotropin-α (Ovitrelle©, 250 mcg/0.5 mL, Merck Serono S.p.A., Bari/Italy) 1 amp SC + Triptorelin Acetate (Gonapeptyl©, 0.1mg/mL, Ferring GmbH, Kiel/Germany) 2 amp SC will be used. All oocytes picked-up will be frozen.

DRUGGnRH antagonist

In this regimen, Cetrorelix (Cetrotide©, 250 mcg/mL, Pierre Fabre Medicament Production, Idron, France) 1x1 SC will be started on day 7 of menstrual cycle and will be continued until the trigger day. For triggering, Choriogonadotropin-α (Ovitrelle©, 250 mcg/0.5 mL, Merck Serono S.p.A., Bari/Italy) 1 amp SC + Triptorelin Acetate (Gonapeptyl©, 0.1mg/mL, Ferring GmbH, Kiel/Germany) 2 amp SC will be used. All oocytes picked-up will be frozen.

Sponsors

Nesta Clinic
Lead SponsorNETWORK

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 45 Years
Healthy volunteers
Yes

Inclusion criteria

* BMI \> 18 kg/m2 ve \<35 kg/m2 * Couples that accept being included in the study * Couple accepting thawed embryo transfer

Exclusion criteria

* Known chromosomal abnormality in either member of the couple * Couples with unexplained infertility * BMI \> 30 kg/m2 * Mullerian malformations * Undergoing oocyte cryopreservation for medical reasons (such as malignancies) * Couple insists on fresh embryo transfer

Design outcomes

Primary

MeasureTime frameDescription
Blastulation RateDay 5 or 6 after fertilizationnumber of blastocysts up to day 6 / the number of fertilized 2PN embryos

Secondary

MeasureTime frameDescription
PGT Results14 days after blastocyte culture samplingEuploidy and aneuploidy rates
Ongoing pregnancyon gestational week 12Fetal heart rate examination via USG
Live Birth Rate9 monthsFor pregnancies resulted within the study period, live birth/embryo transfer count
Chemical Pregnancyon day 11 after transferSerum ß-hcg level

Countries

Turkey (Türkiye)

Contacts

Primary ContactZuhal Yucel, B.N.
zuhal.yucel@nestaclinic.com+90 542 125 29 99

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026