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Can men still become dads after cancer? new study investigates

NCT ID NCT07601451

Knowledge-focused Sponsor: Hospices Civils de Lyon 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 This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study will survey about 950 men who stored sperm at a French fertility center before cancer treatment between 2010 and 2024. Researchers want to know how many later became fathers, whether naturally or with medical help, and if they used their frozen sperm. The goal is to better understand fertility outcomes after cancer and improve patient care.

What this could mean

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

What this could lead to
If successful, this study could help doctors better counsel men with cancer about their chances of having children after treatment.
What could go wrong
This is an observational study that only looks back at past data and surveys, so it cannot prove cause and effect. Results may not apply to all men or cancer types.

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.

Participants

About 950 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

Jun 2026

An estimate. Start dates often move.

Expected to finish

Jun 2027

An estimate. End dates often move.

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.

Who is studied

Patients who undergone fertility preservation after gonadotoxic cancer treatments in the Lyon CECOS between 2010 and 2024.

Ages

18 to 60 years

Sex

Male 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: * were between the ages of 18 and 60 at the time of fertility preservation * Underwent fertility preservation at the CECOS in Lyon between January 1, 2010, and December 31, 2024. * underwent fertility preservation in the context of cancer treatment * who have indicated their consent to participate in the study by completing the questionnaire Exclusion Criteria: * Persons deprived of their liberty by a judicial or administrative decision * Persons receiving psychiatric care * Persons admitted to a health or social care facility for purposes other than research * Adults subject to a legal protection measure (guardianship, conservatorship)

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Conditions

The condition(s) this trial relates to.

cancer infertility disorder male reproductive organ cancer

As listed by the trial registrant

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

Fertility Male cancer Oncofertility

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • CECOS, Hôpital Femme Mère Enfant

    Bron, France, 69500, France

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