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PPOS (Progestin Primed Ovarian Stimulation) and Corifollitropin Alfa (CFA) Cross-over Study

PPOS (Progestin Primed Ovarian Stimulation) and Corifollitropin Alfa (CFA) Cross-over Study

Recruiting
18-40 years
Female
Phase 4

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Overview

P-CCROSS is a randomized, prospective monocentric phase 4 study with a crossover study design. The aim of the study is to compare patient satisfaction (by means of questionnaires) and treatment compliance with IVF treatment with CFA (corifollitropin alfa) and PPOS (Progestin-Primed Ovarian Stimulation) versus conventional IVF treatment with a recombinant FSH/GnRH antagonist. The study will also compare patients undergoing elective fertility preservation versus PGT-A (pre-implantation genetic testing for aneuploidy) patients.The study will have a crossover design so that patients will receive both forms of treatment. The investigators will also compare the endocrine profile and ovarian response of CFA/PPOS versus rFSH/GnRH ovarian stimulation cycles.

Eligibility

Prescreening: Clarification: Pre-screening might be performed to identify women with AFC \> 5 and AMH \> 1.1 ng/ml (Bologna criteria, AFC and AMH values are valid for one year).

Inclusion criteria for:

  • Group 1: indication for oocyte cryopreservation
  • Group 2: indication for IVF/ICSI and PGT-A

Inclusion criteria for both groups:

  • First ovarian stimulation cycle
  • Aged ≥ 18 and \< 41 years old at the time of first OPU

Exclusion Criteria:

  • contra-indication for ovarian stimulation
  • expected poor ovarian response (Bologna Criteria)
  • PCOS patients
  • refusal to fill out questionnaires before, during and after treatment
  • simultaneous participation in another clinical study
  • untreated and uncontrolled thyroid dysfunction;
  • current use of oral contraceptives, anti-psychotics, anti-epileptics or chemotherapy;
  • pregnant or breastfeeding women. A woman is considered of childbearing potential (WOCBP), i.e. fertile, following menarche and until becoming postmenopausal unless permanently sterile. Permanent sterilization methods include hysterectomy, bilateral salpingectomy and bilateral oophorectomy. A postmenopausal state is defined as no menses for 12 months without an alternative medical cause.

Study details
    Ovarian Stimulation
    Quality of Life
    Preimplantation Genetic Testing
    Fertility Preservation

NCT06175832

University Hospital, Ghent

1 February 2026

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