Massive study tracks 1,100+ kids after cancer treatment to uncover hidden risks

NCT ID NCT05564026

First seen Nov 01, 2025 · Last updated Jun 21, 2026 · Updated 35 times

Summary

This study follows over 1,100 children who were treated for germ cell tumors (a type of cancer). Researchers want to learn about long-term side effects like hearing loss and to analyze tumor DNA to better predict which children might have their cancer come back. Participants provide health questionnaires and blood or saliva samples, but no new treatments are being tested.

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This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • University of Minnesota

    RECRUITING

    Minneapolis, Minnesota, 55455, United States

    Contact Phone: •••-•••-•••• Email: •••••@•••••

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 which children are at risk for treatment side effects or relapse, leading to more personalized care.

What could go wrong

This is an observational study, not a treatment trial, so it won't directly help participants. Results may take years and might not change current practice.

Conditions

The condition(s) this trial relates to.

choriocarcinoma embryonal carcinoma Endodermal Sinus Tumor germinoma Neoplasms, Germ Cell and Embryonal teratoma

As listed by the trial registrant

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