NCT06995261 Follitropin Delta in Long GnRH-agonist Protocol
| NCT ID | NCT06995261 |
| Status | Recruiting |
| Phase | — |
| Sponsor | Prof. Dr. med. M.Sc. Georg Griesinger |
| Condition | Infertility (IVF Patients) |
| Study Type | OBSERVATIONAL |
| Enrollment | 350 participants |
| Start Date | 2025-07-09 |
| Primary Completion | 2027-04 |
Eligibility & Interventions
Eligibility Fast-Check
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What to Expect as a Participant
This is an observational study. You will not receive an experimental treatment; researchers will collect data based on your existing condition or standard treatment.
This trial targets 350 participants in total. It began in 2025-07-09 with a primary completion date of 2027-04.
⚠ This information is for research awareness only. Always consult your physician before joining any clinical trial. Participation is voluntary and you may withdraw at any time.
Brief Summary
The REWAG study ("Real-world Evaluation of Women undergoing Agonist protocol with Follitropin delta") is a non-interventional observational study conducted across several fertility centers in Germany. The goal of this study is to evaluate how well a personalized dosing regimen of a hormone called Follitropin delta works in women undergoing controlled ovarian stimulation (COS) for in vitro fertilization (IVF) or intracytoplasmic sperm injection (ICSI) using a long GnRH agonist protocol. Follitropin delta is a recombinant follicle-stimulating hormone (rFSH) that allows for individualized dosing based on a woman's weight and a blood marker called anti-Müllerian hormone (AMH). This personalized approach may help to better balance the stimulation of the ovaries, aiming to reduce the risk of overstimulation (OHSS) while still achieving good treatment outcomes. The study will include approximately 350 women who are undergoing routine IVF/ICSI treatment. No experimental drugs or procedures are involved. All treatment decisions remain the responsibility of the attending physicians and follow standard clinical practice. Data will be collected only from routine visits and medical documentation, with no additional interventions required for participation. Researchers will analyze outcomes such as the number of eggs retrieved, pregnancy rates, treatment cancellations, and any side effects. The study will also look at whether certain patient characteristics can predict how well the treatment works or whether complications may arise. Participation is voluntary. All personal data will be pseudonymized and handled according to strict data protection regulations (GDPR). Results will help to improve understanding of how personalized hormone dosing performs in real-life settings and may support more tailored and effective fertility treatments in the future.
Eligibility Criteria
Inclusion Criteria: * Age ≥18 to ≤ 44 years at enrolment * Planned stimulation in a long luteal GnRH agonist protocol with daily s.c. GnRH-agonist * Planned use of Fd for ovarian stimulation as per SmPC * Serum AMH ≥0.3 ng/ml to ≤4.9 ng/ml measured within12 months prior to treatment * Most recent serum AMH value before start of stimulation not older than 12 months * Planned IVF or ICSI treatment in a first or second attempt with ejaculated or cryopreserved male germ cells, autologous or heterologous, with or without planned genetic testing of the oocytes or embryos * Planned triggering of final oocyte maturation with hCG * Willingness and consent to participate Exclusion Criteria: * Serum AMH value not determined in ELECSYS AMH Plus Immunoassay, ACCESS AMH Advanced (Beckham Coulter) or LUMIPULSE G AMH (Fujirebio) * Most recent serum AMH value before start of stimulation older than 12 months * Serum AMH within 12 months prior to treatment AMH ≤ 0.3 ng/ml or ≥4.9 ng/ml measured within 12 months prior to treatment * Pre-treatment with a combined oral contraceptive "pill" consisting of ethinyl estradiol and a synthetic progestogen or a natural estradiol/progesterone * Anovulatory PCOS syndrome * Women with a contraindication for prescription of Fd treatment * Women undergoing ovarian stimulation for fertility preservation
Contact & Investigator
Frequently Asked Questions
Who can join the NCT06995261 clinical trial?
This trial is open to female participants only, aged 18 Years or older, up to 44 Years, studying Infertility (IVF Patients). Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.
Is NCT06995261 currently recruiting?
Yes, NCT06995261 is actively recruiting participants. Contact the research team at georg.griesinger@uni-luebeck.de for enrollment information.
Where is the NCT06995261 trial being conducted?
This trial is being conducted at Düsseldorf, Germany, Saarbrücken, Germany, Kiel, Germany, Lübeck, Germany.
Who is sponsoring the NCT06995261 clinical trial?
NCT06995261 is sponsored by Prof. Dr. med. M.Sc. Georg Griesinger. The trial plans to enroll 350 participants.