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Comparison of Sequential CFA vs CFA +rFSH for Elective Fertility Preservation.

Comparison of Sequential CFA vs CFA +rFSH for Elective Fertility Preservation.. The 2-shot Protocol.

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06134479
Acronym
2-Shot
Enrollment
194
Registered
2023-11-18
Start date
2023-12-18
Completion date
2025-09-09
Last updated
2026-06-23

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

Conditions

Fertility

Brief summary

This randomized was designed as non-inferiority trial aiming to compare the number of MII oocytes with 2-shot of Corifollitropin alpha (CFA) sequential administration: 150μg at stimulation day (SD) 1 and 100μg at SD 5 and 1-shot of CFA administration 150μg at SD 1 following by rFSH 200IU daily from SD 8 in women undergoing elective fertility preservation in a progestin-primed ovarian stimulation (PPOS) protocol and GnRH-agonist (GnRH-a) triggering.

Interventions

DRUG150μg CFA (Elonva®) at stimulation day (SD) 1 and 100μg CFA(Elonva®) at SD 5

On Day 2 or 3 of the menstrual cycle, a first subcutaneous (SC) injection of corifollitropin alfa (CFA) (Elonva®) 150μg will be administered (stimulation day 1) and a second SC injection of corifollitropin alfa (Elonva®) 100 μg will be administrated on SD 5. Endogenous LH suppression will be accomplished by daily 75μg/day of Desogestrel (Cerazet®) per os, at bedtime, starting on stimulation day 1 and continuing up to the day before of trigger. As soon as 3 follicles ≥ 18 mm are observed by ultrasound, 0.2 mg Triptorelin (Decapeptyl®) will be administered the same day to induce final oocyte maturation. About 34-36 hours thereafter oocyte pick-up will be performed.

DRUG150μg CFA (Elonva®) at SD 1 following by rFSH (Puregon®) 200IU daily from SD 8 until the day of the trigger

On Day 2 or 3 of the menstrual cycle, a single subcutaneous (SC) injection of corifollitropin alfa (Elonva®) 150μg will be administered (SD 1) and from Day 8 of stimulation a daily SC dose of rFSH (Puregon®) 200IU/day up to the day of Triptorelin (Decapeptyl®) 0.2 mg administration. Endogenous LH suppression will be accomplished by daily 75μg/day of Desogestrel (Cerazet®) per os, at bedtime, starting on stimulation day 1 and continuing up to the day before of trigger. As soon as 3 follicles ≥ 18 mm are observed by ultrasound, 0.2 mg Triptorelin (Decapeptyl®) will be administered the same day to induce final oocyte maturation. About 34-36 hours thereafter oocyte pick-up will be performed.

Sponsors

Fundación Santiago Dexeus Font
Lead SponsorOTHER
Organon
CollaboratorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 40 Years
Healthy volunteers
No

Inclusion criteria

* AFC ≤20 * Anti-Mullerian hormone (AMH) ≤3ng/ml (AMH result of up to one year will be valid) * Between 18 and 40 years old * BMI \>18 and \<30 kg/m2 * Body weight \> 50 kg for \> 36 years * Able to come to the Center to comply with the procedures of the study: blood tests, appointments and drug dispensation.

Exclusion criteria

* Medically indicated fertility preservation * AFC \> 20 * Polycystic ovarian syndrome (PCOS) according to the Rotterdam criteria * FSH ≥ 20 * History of untreated autoimmune, endocrine or metabolic disorders * Contraindication for hormonal treatment * Recent history of severe disease requiring regular treatment (clinically significant concurrent medical condition that could compromise subject safety or interfered with the trial assessment).

Design outcomes

Primary

MeasureTime frameDescription
Number of MII oocytes retrievedTrough study completion, an average of 10-20 days.Number of MII oocytes retrieved

Secondary

MeasureTime frameDescription
Total number of oocytes retrievedTrough study completion, an average of 10-20 days.Total number of oocytes retrieved
FSHUp to oocyte pickup, an average of 10-20 days.Endocrine profile FSH
LHUp to oocyte pickup, an average of 10-20 days.Endocrine profile LH
PROGESTERONEUp to oocyte pickup, an average of 10-20 days.Endocrine profile PROGESTERONE
EstradiolUp to oocyte pickup, an average of 10-20 days.Endocrine profile Estradiol
OHSSUntil 15 days after day of oocyte pick-upIncidence of OHSS
FertiQoLfrom stimulation day 1 until the day of oocyte pick-up,10-20 days after the beggining of the stimulation.Quality of life questionnaire "FertiQoL"
Length of stimulationup to 18 daysTotal days of stimulation
Adverse eventsup to 20daysFrequency of adverse events

Countries

Spain

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 24, 2026