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Recruiting Phase 4 NCT06763926

NCT06763926 Intranasal Nafarelin For Triggering Oocyte Maturation

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Clinical Trial Summary
NCT ID NCT06763926
Status Recruiting
Phase Phase 4
Sponsor Fundacion Dexeus
Condition Fertility Preservation
Study Type INTERVENTIONAL
Enrollment 154 participants
Start Date 2026-10-14
Primary Completion 2028-01-15

Eligibility & Interventions

Sex Female only
Min Age 18 Years
Max Age 40 Years
Study Type INTERVENTIONAL
Interventions
Subcutaneous TriptorelinIntranasal nafarelin

Eligibility Fast-Check

Enter your details for a quick preliminary check. This does not replace medical advice.

What to Expect as a Participant

You will actively receive the study intervention — which may be a drug, biologic, device, or procedure.

Phase 4 studies follow an already-approved treatment in real-world conditions to monitor long-term safety and effectiveness.

This trial targets 154 participants in total. It began in 2026-10-14 with a primary completion date of 2028-01-15.

⚠ 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

This is a non-inferiority randomised, controlled clinical trial comparing subcutaneous triptorelin to intranasal nafarelin for the final maturation of oocytes in women undergoing fertility preservation cycles with oocyte cryopreservation undergoing ovarian stimulation.

Eligibility Criteria

Inclusion Criteria: * Women undergoing fertility preservation cycles with oocyte cryopreservation * Undergoing a progesterone-primed ovarian stimulation cycle (PPOS) with any commercially available gonadotropin preparation(s) * BMI 18 - 30 kg/m2 Exclusion Criteria: * Allergy or hypersensitivity to either of the study drugs * Hypopituitarism * Known pituitary tumour * Contraindication to intranasal medication administration * Previous poor response to agonist trigger

Contact & Investigator

Central Contact

Nikolaos P Polyzos, MD, PhD

✉ nikpol@dexeus.com

📞 0034932274700

Principal Investigator

Nikolaos P Polyzos, MD, PhD

PRINCIPAL INVESTIGATOR

Dexeus Fertility

Frequently Asked Questions

Who can join the NCT06763926 clinical trial?

This trial is open to female participants only, aged 18 Years or older, up to 40 Years, studying Fertility Preservation. Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.

What phase is the NCT06763926 trial and what does that mean for participants?

Phase 4 studies are conducted after a treatment has been approved. They monitor long-term safety and real-world effectiveness in a broader patient population.

Is NCT06763926 currently recruiting?

Yes, NCT06763926 is actively recruiting participants. Contact the research team at nikpol@dexeus.com for enrollment information.

Where is the NCT06763926 trial being conducted?

This trial is being conducted at Sabadell, Spain, Sant Cugat del Vallès, Spain, Reus, Spain, Barcelona, Spain and 1 additional location.

Who is sponsoring the NCT06763926 clinical trial?

NCT06763926 is sponsored by Fundacion Dexeus. The principal investigator is Nikolaos P Polyzos, MD, PhD at Dexeus Fertility. The trial plans to enroll 154 participants.

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ClinicalMetric — Independent clinical trial intelligence platform. Not affiliated with NIH, ClinicalTrials.gov, the U.S. FDA, or any pharmaceutical company, hospital, or clinical research organization. Trial data is sourced from ClinicalTrials.gov for informational purposes only and does not constitute medical advice. Do not make any treatment, enrollment, or health decisions based solely on information found here — always consult a qualified healthcare professional. Full Disclaimer  ·  Last Reviewed: November 2026  ·  Data Methodology