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Fewer shots for egg freezing? new study tests a simpler hormone plan

NCT ID NCT06134479

Disease control Sponsor: Fundación Santiago Dexeus Font Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tested whether a two-shot hormone schedule works as well as the usual longer schedule for women freezing their eggs for non-medical reasons. 194 healthy women aged 18-40 received either two injections of corifollitropin alfa or one injection followed by daily shots of another hormone. The goal was to see if both methods collected a similar number of mature eggs.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
Corifollitropin alfa (Elonva) and recombinant FSH
What this could lead to
If successful, this could offer a simpler, shorter hormone injection schedule for women freezing their eggs, reducing the number of shots needed.
What could go wrong
This is a completed trial, but results are not yet published. The simpler schedule may not collect as many mature eggs as the standard approach, and individual responses vary.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Phase 3

Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.

Participants

194 people

The number who actually took part.

Started

Dec 2023

Finished

Sep 2025

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 to 40 years

Sex

Female participants only

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

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).

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Conditions

The condition(s) this trial relates to.

infertility disorder

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Fertility

Contacts and locations

Locations

  • Hospital Universitario Quiron Dexeus

    Barcelona, 08028, Spain

More trials for these conditions

Other studies related to the condition(s) this trial covers.