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Comparison of the efficacy of flexible versus fixed progestin-primed ovarian stimulation on premature luteinizing hormone surge in Poseidon group 1 and 2: A Non-Inferiority Randomized Controlled Trial

Comparison of the efficacy of flexible versus fixed progestin-primed ovarian stimulation on premature luteinizing hormone surge in Poseidon group 1 and 2: A Non-Inferiority Randomized Controlled Trial

Status
Recruiting
Phases
Phase 3
Study type
Interventional
Source
TCTR
Registry ID
TCTR20250316002
Enrollment
98
Registered
2025-03-16
Start date
2025-02-18
Completion date
Unknown
Last updated
2026-08-03

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

Conditions

Premature luteinizing hormone surge in infertile women with normal ovarian reserve undergoing controlled ovarian stimulation in fixed and flexible PPOS protocols Fixed PPOS, flexible PPOS, premature LH surge

Interventions

In the flexible PPOS protocol, medroxyprogesterone acetate 10 mg is started at a dosage of one tablet once a day when dominant follicles reach 14 millimeters or serum estradiol levels are equal or mor
Experimental Drug,Active Comparator Drug
Flexible PPOS,Fixed PPOS

Sponsors

Fund of Faculty of Medicines
Lead Sponsor

Eligibility

Sex/Gender
Female
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: 1. An infertile women with normal ovarian reserve according to Poseidon criteria Group 1 defined by age less than 35 years old and AMH equal or more than 1.2 ng/dL or an antral follicle count equal or more than 5, undergoing IVF/ICSI 2. An infertile women with normal ovarian reserve according to Poseidon criteria Group 2 defined by age equal or more than 35 years old and AMH equal or more than 1.2 ng/dL or an antral follicle count equal or more than 5, undergoing IVF/ICSI

Exclusion criteria

Exclusion criteria: 1. Women with a history of progestin drug allergy or contraindications to progestin hormone therapy 2. Women with a canceled ovarian stimulation cycle, such as in whom no eggs were retrieved

Design outcomes

Primary

MeasureTime frame
Premature luteinizing hormone surge Before ovulation trigger Serum luteinizing hormone

Secondary

MeasureTime frame
Total number of oocytes After ovarian pick-up Count oocytes after ovarian pick-up,Number of metaphase II oocytes After intracytoplasmic sperm injection Count metaphase II oocytes after intracytoplasmic sperm injection,Fertilization rate After intracytoplasmic sperm injection Count fertilized eggs after fertilization,Number of 2 pronuclear embryos After intracytoplasmic sperm injection day 1 count 2 pronuclear embryos after intracytoplasmic sperm injection 1 day,Number of cleavage stage embryos After intracytoplasmic sperm injection day 3 Count embryos in cleavage stage in day 3 after intracytoplasmic sperm injection,Number of blastocyst embryos After intracytoplasmic sperm injection day 5 Count blastocyst embryos after intracytoplasmic sperm injection day 5

Countries

Thailand

Contacts

Public ContactRatsak Tangterdchanakit

Khon Kaen University

ratsak_25@hotmail.com043363030

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 10, 2026