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Swiss study tracks childhood cancer Survivors' health for decades

NCT ID NCT04732273

Knowledge-focused Sponsor: University of Bern Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 26, 2026

Summary

This study follows 3,000 childhood cancer survivors in Switzerland to learn about long-term health problems caused by cancer treatments. Participants undergo physical exams, lab tests, and questionnaires during regular follow-up visits. The goal is to better understand and manage late effects like breathing issues or hormonal changes.

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 predict and manage late effects of childhood cancer treatments, improving long-term care.
What could go wrong
This is an observational study, not a treatment trial. It may not lead to direct changes in care, and results depend on participant follow-up.

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 3,000 people

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

Started

Jun 2022

Expected to finish

Jan 2071

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

Childhood cancer survivors, who were diagnosed in a Swiss pediatric oncology clinic at age \<21 years from 1976 onward and who completed their cancer treatment. Survivors are eligible to participate to the study from the first day after treatment completion, but can also enter the study later.

Ages

Children (under 18), adults (18 to 64) and older adults (65 and over)

Sex

Anyone

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.

This prospective cohort study is based on the Childhood Cancer Registry (ChCR), a national, population-based cancer registry that includes all children and adolescents in Switzerland who were diagnosed with cancer at age 0-20 years. It includes patients diagnosed with leukemia, lymphoma, central nervous system tumors, and malignant solid tumors or Langerhans cell histiocytosis. Inclusion Criteria: * Registered in the Childhood Cancer Registry (ChCR) or treated and followed-up in a Swiss pediatric oncology (SPOG) clinic, but not registered in the ChCR because of residency in neighboring countries * Diagnosed at age 0 - 20 years * Childhood cancer treatment completed * All age categories at time of inclusion in the study (children, adolescents, adults) * Written informed consent Exclusion criteria: * Childhood cancer survivors in a palliative or relapsed situation where no follow-up examinations are foreseen.

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Conditions

The condition(s) this trial relates to.

childhood malignant neoplasm neoplasm postpoliomyelitis syndrome

As listed by the trial registrant

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

Childhood cancer Late effect

How to take part

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

  1. The places running it

    3 sites. 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

  • University Childen's Hospital Basel

    RECRUITING

    Basel, Switzerland

  • University Children's Hospital Bern

    RECRUITING

    Bern, Switzerland

  • University Hospital Geneva

    RECRUITING

    Geneva, Switzerland

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